help
PCIcore hostmode operation (external PCI bus).
+config SSB_DRIVER_MIPS
+ bool "SSB Broadcom MIPS core driver"
+ depends on SSB && MIPS
+ select SSB_SERIAL
+ help
+ Driver for the Sonics Silicon Backplane attached
+ Broadcom MIPS core.
+
+ If unsure, say N
+
+config SSB_DRIVER_EXTIF
+ bool "SSB Broadcom EXTIF core driver"
+ depends on SSB_DRIVER_MIPS
+ help
+ Driver for the Sonics Silicon Backplane attached
+ Broadcom EXTIF core.
+
+ If unsure, say N
+
endmenu
-ssb-driver-chipcommon-y := driver_chipcommon/chipcommon.o
-ssb-driver-mips-$(CONFIG_BCM947XX) := driver_mips/mips.o
-ssb-driver-pci-$(CONFIG_SSB_DRIVER_PCICORE) := driver_pci/pcicore.o
+ssb-builtin-drivers-y += driver_chipcommon.o
+ssb-builtin-drivers-$(CONFIG_SSB_DRIVER_MIPS) += driver_mipscore.o
+ssb-builtin-drivers-$(CONFIG_SSB_DRIVER_PCICORE) += driver_pcicore.o
-ssb-$(CONFIG_SSB_PCIHOST) += pci.o
-ssb-$(CONFIG_SSB_PCMCIAHOST) += pcmcia.o
+ssb-hostsupport-$(CONFIG_SSB_PCIHOST) += pci.o pcihost_wrapper.o
+ssb-hostsupport-$(CONFIG_SSB_PCMCIAHOST) += pcmcia.o
obj-$(CONFIG_SSB) += ssb.o
-ssb-objs := core.o scan.o \
- $(ssb-y) $(ssb-m) \
- $(ssb-driver-chipcommon-y) \
- $(ssb-driver-mips-y) \
- $(ssb-driver-pci-y)
+ssb-objs := main.o scan.o \
+ $(ssb-hostsupport-y) $(ssb-builtin-drivers-y)
+++ /dev/null
-/*
- * Sonics Silicon Backplane
- * Subsystem core
- *
- * Copyright 2005, Broadcom Corporation
- * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
- *
- * Licensed under the GNU/GPL. See COPYING for details.
- */
-
-#include "ssb_private.h"
-
-#include <linux/delay.h>
-#include <linux/ssb/ssb.h>
-#include <linux/ssb/ssb_regs.h>
-
-#ifdef CONFIG_SSB_PCIHOST
-# include <linux/pci.h>
-#endif
-
-#ifdef CONFIG_SSB_PCMCIAHOST
-# include <pcmcia/cs_types.h>
-# include <pcmcia/cs.h>
-# include <pcmcia/cistpl.h>
-# include <pcmcia/ds.h>
-#endif
-
-
-MODULE_DESCRIPTION("Sonics Silicon Backplane driver");
-MODULE_LICENSE("GPL");
-
-
-static LIST_HEAD(attach_queue);
-static LIST_HEAD(buses);
-static int nr_buses;
-static DEFINE_MUTEX(buses_mutex);
-
-#define ssb_buses_lock() do { \
- if (!is_early_boot()) \
- mutex_lock(&buses_mutex); \
- } while (0)
-
-#define ssb_buses_unlock() do { \
- if (!is_early_boot()) \
- mutex_unlock(&buses_mutex); \
- } while (0)
-
-
-static struct ssb_device * ssb_device_get(struct ssb_device *dev)
-{
- if (dev)
- get_device(&dev->dev);
- return dev;
-}
-
-static void ssb_device_put(struct ssb_device *dev)
-{
- if (dev)
- put_device(&dev->dev);
-}
-
-static void ssb_bus_resume(struct ssb_bus *bus)
-{
-printk("SSB BUS RESUME\n");
- ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1);
- ssb_chipco_resume(&bus->chipco);
-}
-
-static int ssb_device_resume(struct device *dev)
-{
- struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
- struct ssb_driver *ssb_drv;
- struct ssb_bus *bus;
- int err = 0;
-
-printk("SSB DEV RESUME\n");
- bus = ssb_dev->bus;
- if (bus->suspend_cnt == bus->nr_devices)
- ssb_bus_resume(bus);
- bus->suspend_cnt--;
- if (dev->driver) {
- ssb_drv = drv_to_ssb_drv(dev->driver);
- if (ssb_drv && ssb_drv->resume)
- err = ssb_drv->resume(ssb_dev);
- if (err)
- goto out;
- }
-out:
- return err;
-}
-
-static void ssb_bus_suspend(struct ssb_bus *bus, pm_message_t state)
-{
-printk("SSB BUS SUSPEND\n");
-// ssb_chipco_suspend(&bus->chipco, state);
-// ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0);
-}
-
-static int ssb_device_suspend(struct device *dev, pm_message_t state)
-{
- struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
- struct ssb_driver *ssb_drv;
- struct ssb_bus *bus;
- int err = 0;
-
-printk("SSB DEV SUSPEND\n");
- if (dev->driver) {
- ssb_drv = drv_to_ssb_drv(dev->driver);
- if (ssb_drv && ssb_drv->suspend)
- err = ssb_drv->suspend(ssb_dev, state);
- if (err)
- goto out;
- }
-
- bus = ssb_dev->bus;
- bus->suspend_cnt++;
- if (bus->suspend_cnt == bus->nr_devices) {
- /* All devices suspended. Shutdown the bus. */
- ssb_bus_suspend(bus, state);
- }
-
-out:
- return err;
-}
-
-static void ssb_device_shutdown(struct device *dev)
-{
- struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
- struct ssb_driver *ssb_drv;
-
- if (!dev->driver)
- return;
- ssb_drv = drv_to_ssb_drv(dev->driver);
- if (ssb_drv && ssb_drv->shutdown)
- ssb_drv->shutdown(ssb_dev);
-}
-
-static int ssb_device_remove(struct device *dev)
-{
- struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
- struct ssb_driver *ssb_drv = drv_to_ssb_drv(dev->driver);
-
- if (ssb_drv && ssb_drv->remove)
- ssb_drv->remove(ssb_dev);
- ssb_device_put(ssb_dev);
-
- return 0;
-}
-
-static int ssb_device_probe(struct device *dev)
-{
- struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
- struct ssb_driver *ssb_drv = drv_to_ssb_drv(dev->driver);
- int err = 0;
-
- ssb_device_get(ssb_dev);
- if (ssb_drv && ssb_drv->probe)
- err = ssb_drv->probe(ssb_dev, &ssb_dev->id);
- if (err)
- ssb_device_put(ssb_dev);
-
- return err;
-}
-
-static int ssb_match_devid(const struct ssb_device_id *tabid,
- const struct ssb_device_id *devid)
-{
- if ((tabid->vendor != devid->vendor) &&
- tabid->vendor != SSB_ANY_VENDOR)
- return 0;
- if ((tabid->coreid != devid->coreid) &&
- tabid->coreid != SSB_ANY_ID)
- return 0;
- if ((tabid->revision != devid->revision) &&
- tabid->revision != SSB_ANY_REV)
- return 0;
- return 1;
-}
-
-static int ssb_bus_match(struct device *dev, struct device_driver *drv)
-{
- struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
- struct ssb_driver *ssb_drv = drv_to_ssb_drv(drv);
- const struct ssb_device_id *id;
-
- for (id = ssb_drv->id_table;
- id->vendor || id->coreid || id->revision;
- id++) {
- if (ssb_match_devid(id, &ssb_dev->id))
- return 1; /* found */
- }
-
- return 0;
-}
-
-struct bus_type ssb_bustype = {
- .name = NULL, /* Intentionally NULL to indicate early boot */
- .match = ssb_bus_match,
- .probe = ssb_device_probe,
- .remove = ssb_device_remove,
- .shutdown = ssb_device_shutdown,
- .suspend = ssb_device_suspend,
- .resume = ssb_device_resume,
-};
-
-#define is_early_boot() (ssb_bustype.name == NULL)
-
-void ssb_bus_unregister(struct ssb_bus *bus)
-{
- struct ssb_device *dev;
- int i;
-
- ssb_buses_lock();
- for (i = bus->nr_devices - 1; i >= 0; i--) {
- dev = &(bus->devices[i]);
- device_unregister(&dev->dev);
- }
- list_del(&bus->list);
- ssb_buses_unlock();
-
- ssb_iounmap(bus);
-}
-EXPORT_SYMBOL(ssb_bus_unregister);
-
-static void ssb_release_dev(struct device *dev)
-{
- /* Nothing, devices are allocated together with struct ssb_bus. */
-}
-
-/* Needs ssb_buses_lock() */
-static int ssb_attach_queued_buses(void)
-{
- struct ssb_bus *bus, *n;
- struct ssb_device *dev;
- int i, err;
-
- list_for_each_entry_safe(bus, n, &attach_queue, list) {
- ssb_pcicore_init(&bus->pcicore);
- for (i = 0; i < bus->nr_devices; i++) {
- dev = &(bus->devices[i]);
-
- dev->dev.release = ssb_release_dev;
- err = device_register(&dev->dev);
- if (err) {
- ssb_printk(KERN_ERR PFX
- "Could not register %s\n",
- dev->dev.bus_id);
- }
- }
- list_move_tail(&bus->list, &buses);
- }
- return 0;
-}
-
-static void ssb_get_boardtype(struct ssb_bus *bus)
-{//FIXME for pcmcia?
- if (bus->bustype != SSB_BUSTYPE_PCI) {
- /* Must set board_vendor, board_type and board_rev
- * before calling ssb_bus_*_register() */
- assert(bus->board_vendor && bus->board_type);
- return;
- }
- ssb_pci_get_boardtype(bus);
-}
-
-static u16 ssb_ssb_read16(struct ssb_device *dev, u16 offset)
-{
- struct ssb_bus *bus = dev->bus;
-
- offset += dev->core_index * SSB_CORE_SIZE;
- return readw(bus->mmio + offset);
-}
-
-static u32 ssb_ssb_read32(struct ssb_device *dev, u16 offset)
-{
- struct ssb_bus *bus = dev->bus;
-
- offset += dev->core_index * SSB_CORE_SIZE;
- return readl(bus->mmio + offset);
-}
-
-static void ssb_ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
-{
- struct ssb_bus *bus = dev->bus;
-
- offset += dev->core_index * SSB_CORE_SIZE;
- writew(value, bus->mmio + offset);
-}
-
-static void ssb_ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
-{
- struct ssb_bus *bus = dev->bus;
-
- offset += dev->core_index * SSB_CORE_SIZE;
- writel(value, bus->mmio + offset);
-}
-
-static const struct ssb_bus_ops ssb_ssb_ops = {
- .read16 = ssb_ssb_read16,
- .read32 = ssb_ssb_read32,
- .write16 = ssb_ssb_write16,
- .write32 = ssb_ssb_write32,
-};
-
-static int ssb_bus_register(struct ssb_bus *bus,
- unsigned long baseaddr)
-{
- int err;
-
- ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found on ");
- switch (bus->bustype) {
- case SSB_BUSTYPE_SSB:
- ssb_printk("address 0x%08lX\n", baseaddr);
- break;
- case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
- ssb_printk("PCI device %s\n", bus->host_pci->dev.bus_id);
-#endif
- break;
- case SSB_BUSTYPE_PCMCIA:
-#ifdef CONFIG_SSB_PCMCIAHOST
- ssb_printk("PCMCIA device %s\n", bus->host_pcmcia->devname);
-#endif
- break;
- }
-
- spin_lock_init(&bus->bar_lock);
- INIT_LIST_HEAD(&bus->list);
-
- ssb_get_boardtype(bus);
- /* Powerup the bus */
- err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1);
- if (err)
- goto out;
- ssb_buses_lock();
- bus->busnumber = nr_buses;
- /* Scan for devices (cores) */
- err = ssb_bus_scan(bus, baseaddr);
- if (err)
- goto err_disable_xtal;
-
- /* Init PCI-host device (if any) */
- err = ssb_pci_init(bus);
- if (err)
- goto err_unmap;
- /* Init PCMCIA-host device (if any) */
- err = ssb_pcmcia_init(bus);
- if (err)
- goto err_unmap;
-
- /* Initialize basic system devices (if available) */
- ssb_chipcommon_init(&bus->chipco);
- ssb_mipscore_init(&bus->mipscore);
-
- /* Queue it for attach */
- list_add_tail(&bus->list, &attach_queue);
- if (!is_early_boot()) {
- /* This is not early boot, so we must attach the bus now */
- err = ssb_attach_queued_buses();
- if (err)
- goto err_dequeue;
- }
- nr_buses++;
- ssb_buses_unlock();
-
-out:
- return err;
-
-err_dequeue:
- list_del(&bus->list);
-err_unmap:
- ssb_iounmap(bus);
-err_disable_xtal:
- ssb_buses_unlock();
- ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0);
- goto out;
-}
-
-#ifdef CONFIG_SSB_PCIHOST
-int ssb_bus_pcibus_register(struct ssb_bus *bus,
- struct pci_dev *host_pci)
-{
- int err;
-
- bus->bustype = SSB_BUSTYPE_PCI;
- bus->host_pci = host_pci;
- bus->ops = &ssb_pci_ops;
-
- err = ssb_bus_register(bus, 0);
-
- return err;
-}
-EXPORT_SYMBOL(ssb_bus_pcibus_register);
-#endif /* CONFIG_SSB_PCIHOST */
-
-#ifdef CONFIG_SSB_PCMCIAHOST
-int ssb_bus_pcmciabus_register(struct ssb_bus *bus,
- struct pcmcia_device *pcmcia_dev,
- unsigned long baseaddr,
- void (*fill_sprom)(struct ssb_sprom *sprom))
-{
- int err;
-
- bus->bustype = SSB_BUSTYPE_PCMCIA;
- bus->host_pcmcia = pcmcia_dev;
- bus->ops = &ssb_pcmcia_ops;
- fill_sprom(&bus->sprom);
-
- err = ssb_bus_register(bus, baseaddr);
-
- return err;
-}
-EXPORT_SYMBOL(ssb_bus_pcmciabus_register);
-#endif /* CONFIG_SSB_PCMCIAHOST */
-
-int ssb_bus_ssbbus_register(struct ssb_bus *bus,
- unsigned long baseaddr,
- void (*fill_sprom)(struct ssb_sprom *sprom))
-{
- int err;
-
- bus->bustype = SSB_BUSTYPE_SSB;
- bus->ops = &ssb_ssb_ops;
- fill_sprom(&bus->sprom);
- err = ssb_bus_register(bus, baseaddr);
-
- return err;
-}
-
-int __ssb_driver_register(struct ssb_driver *drv, struct module *owner)
-{
- drv->drv.name = drv->name;
- drv->drv.bus = &ssb_bustype;
- drv->drv.owner = owner;
-
- return driver_register(&drv->drv);
-}
-EXPORT_SYMBOL(__ssb_driver_register);
-
-void ssb_driver_unregister(struct ssb_driver *drv)
-{
- driver_unregister(&drv->drv);
-}
-EXPORT_SYMBOL(ssb_driver_unregister);
-
-void ssb_set_devtypedata(struct ssb_device *dev, void *data)
-{
- struct ssb_bus *bus = dev->bus;
- struct ssb_device *ent;
- int i;
-
- for (i = 0; i < bus->nr_devices; i++) {
- ent = &(bus->devices[i]);
- if (ent->id.vendor != dev->id.vendor)
- continue;
- if (ent->id.coreid != dev->id.coreid)
- continue;
-
- ent->devtypedata = data;
- }
-}
-EXPORT_SYMBOL(ssb_set_devtypedata);
-
-static u32 clkfactor_f6_resolve(u32 v)
-{
- /* map the magic values */
- switch (v) {
- case SSB_CHIPCO_CLK_F6_2:
- return 2;
- case SSB_CHIPCO_CLK_F6_3:
- return 3;
- case SSB_CHIPCO_CLK_F6_4:
- return 4;
- case SSB_CHIPCO_CLK_F6_5:
- return 5;
- case SSB_CHIPCO_CLK_F6_6:
- return 6;
- case SSB_CHIPCO_CLK_F6_7:
- return 7;
- }
- return 0;
-}
-
-/* Calculate the speed the backplane would run at a given set of clockcontrol values */
-u32 ssb_calc_clock_rate(u32 plltype, u32 n, u32 m)
-{
- u32 n1, n2, clock, m1, m2, m3, mc;
-
- n1 = (n & SSB_CHIPCO_CLK_N1);
- n2 = ((n & SSB_CHIPCO_CLK_N2) >> SSB_CHIPCO_CLK_N2_SHIFT);
-
- switch (plltype) {
- case SSB_PLLTYPE_6: /* 100/200 or 120/240 only */
- if (m & SSB_CHIPCO_CLK_T6_MMASK)
- return SSB_CHIPCO_CLK_T6_M0;
- return SSB_CHIPCO_CLK_T6_M1;
- case SSB_PLLTYPE_1: /* 48Mhz base, 3 dividers */
- case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */
- case SSB_PLLTYPE_4: /* 48Mhz, 4 dividers */
- case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */
- n1 = clkfactor_f6_resolve(n1);
- n2 += SSB_CHIPCO_CLK_F5_BIAS;
- break;
- case SSB_PLLTYPE_2: /* 48Mhz, 4 dividers */
- n1 += SSB_CHIPCO_CLK_T2_BIAS;
- n2 += SSB_CHIPCO_CLK_T2_BIAS;
- assert((n1 >= 2) && (n1 <= 7));
- assert((n2 >= 5) && (n2 <= 23));
- break;
- case SSB_PLLTYPE_5: /* 25Mhz, 4 dividers */
- return 100000000;
- default:
- assert(0);
- }
-
- switch (plltype) {
- case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */
- case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */
- clock = SSB_CHIPCO_CLK_BASE2 * n1 * n2;
- break;
- default:
- clock = SSB_CHIPCO_CLK_BASE1 * n1 * n2;
- }
- if (!clock)
- return 0;
-
- m1 = (m & SSB_CHIPCO_CLK_M1);
- m2 = ((m & SSB_CHIPCO_CLK_M2) >> SSB_CHIPCO_CLK_M2_SHIFT);
- m3 = ((m & SSB_CHIPCO_CLK_M3) >> SSB_CHIPCO_CLK_M3_SHIFT);
- mc = ((m & SSB_CHIPCO_CLK_MC) >> SSB_CHIPCO_CLK_MC_SHIFT);
-
- switch (plltype) {
- case SSB_PLLTYPE_1: /* 48Mhz base, 3 dividers */
- case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */
- case SSB_PLLTYPE_4: /* 48Mhz, 4 dividers */
- case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */
- m1 = clkfactor_f6_resolve(m1);
- if ((plltype == SSB_PLLTYPE_1) ||
- (plltype == SSB_PLLTYPE_3))
- m2 += SSB_CHIPCO_CLK_F5_BIAS;
- else
- m2 = clkfactor_f6_resolve(m2);
- m3 = clkfactor_f6_resolve(m3);
-
- switch (mc) {
- case SSB_CHIPCO_CLK_MC_BYPASS:
- return clock;
- case SSB_CHIPCO_CLK_MC_M1:
- return (clock / m1);
- case SSB_CHIPCO_CLK_MC_M1M2:
- return (clock / (m1 * m2));
- case SSB_CHIPCO_CLK_MC_M1M2M3:
- return (clock / (m1 * m2 * m3));
- case SSB_CHIPCO_CLK_MC_M1M3:
- return (clock / (m1 * m3));
- }
- return 0;
- case SSB_PLLTYPE_2:
- m1 += SSB_CHIPCO_CLK_T2_BIAS;
- m2 += SSB_CHIPCO_CLK_T2M2_BIAS;
- m3 += SSB_CHIPCO_CLK_T2_BIAS;
- assert((m1 >= 2) && (m1 <= 7));
- assert((m2 >= 3) && (m2 <= 10));
- assert((m3 >= 2) && (m3 <= 7));
-
- if (!(mc & SSB_CHIPCO_CLK_T2MC_M1BYP))
- clock /= m1;
- if (!(mc & SSB_CHIPCO_CLK_T2MC_M2BYP))
- clock /= m2;
- if (!(mc & SSB_CHIPCO_CLK_T2MC_M3BYP))
- clock /= m3;
- return clock;
- default:
- assert(0);
- }
- return 0;
-}
-
-/* Get the current speed the backplane is running at */
-u32 ssb_clockspeed(struct ssb_bus *bus)
-{
- u32 rate;
- u32 plltype;
- u32 clkctl_n, clkctl_m;
-
- //TODO if EXTIF: PLLTYPE == 1, read n from clockcontrol_n, m from clockcontrol_sb
-
- if (bus->chipco.dev) {
- ssb_chipco_get_clockcontrol(&bus->chipco, &plltype,
- &clkctl_n, &clkctl_m);
- } else
- return 0;
-
- if (bus->chip_id == 0x5365) {
- rate = 100000000;
- } else {
- rate = ssb_calc_clock_rate(plltype, clkctl_n, clkctl_m);
- if (plltype == SSB_PLLTYPE_3) /* 25Mhz, 2 dividers */
- rate /= 2;
- }
-
- return rate;
-}
-EXPORT_SYMBOL(ssb_clockspeed);
-
-int ssb_device_is_enabled(struct ssb_device *dev)
-{
- u32 val;
-
- val = ssb_read32(dev, SSB_TMSLOW);
- val &= SSB_TMSLOW_CLOCK | SSB_TMSLOW_RESET | SSB_TMSLOW_REJECT;
-
- return (val == SSB_TMSLOW_CLOCK);
-}
-EXPORT_SYMBOL(ssb_device_is_enabled);
-
-void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags)
-{
- u32 val;
-
- ssb_device_disable(dev, core_specific_flags);
- ssb_write32(dev, SSB_TMSLOW,
- SSB_TMSLOW_RESET | SSB_TMSLOW_CLOCK |
- SSB_TMSLOW_FGC | core_specific_flags);
- /* flush */
- ssb_read32(dev, SSB_TMSLOW);
- udelay(1);
-
- /* Clear SERR if set. This is a hw bug workaround. */
- if (ssb_read32(dev, SSB_TMSHIGH) & SSB_TMSHIGH_SERR)
- ssb_write32(dev, SSB_TMSHIGH, 0);
-
- val = ssb_read32(dev, SSB_IMSTATE);
- if (val & (SSB_IMSTATE_IBE | SSB_IMSTATE_TO)) {
- val &= ~(SSB_IMSTATE_IBE | SSB_IMSTATE_TO);
- ssb_write32(dev, SSB_IMSTATE, val);
- }
-
- ssb_write32(dev, SSB_TMSLOW,
- SSB_TMSLOW_CLOCK | SSB_TMSLOW_FGC |
- core_specific_flags);
- /* flush */
- ssb_read32(dev, SSB_TMSLOW);
- udelay(1);
-
- ssb_write32(dev, SSB_TMSLOW, SSB_TMSLOW_CLOCK |
- core_specific_flags);
- /* flush */
- ssb_read32(dev, SSB_TMSLOW);
- udelay(1);
-}
-EXPORT_SYMBOL(ssb_device_enable);
-
-static int ssb_wait_bit(struct ssb_device *dev, u16 reg, u32 bitmask,
- int timeout, int set)
-{
- int i;
- u32 val;
-
- for (i = 0; i < timeout; i++) {
- val = ssb_read32(dev, reg);
- if (set) {
- if (val & bitmask)
- return 0;
- } else {
- if (!(val & bitmask))
- return 0;
- }
- udelay(10);
- }
- printk(KERN_ERR PFX "Timeout waiting for bitmask %08X on "
- "register %04X to %s.\n",
- bitmask, reg, (set ? "set" : "clear"));
-
- return -ETIMEDOUT;
-}
-
-void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags)
-{
- if (ssb_read32(dev, SSB_TMSLOW) & SSB_TMSLOW_RESET)
- return;
-
- ssb_write32(dev, SSB_TMSLOW, SSB_TMSLOW_REJECT | SSB_TMSLOW_CLOCK);
- ssb_wait_bit(dev, SSB_TMSLOW, SSB_TMSLOW_REJECT, 1000, 1);
- ssb_wait_bit(dev, SSB_TMSHIGH, SSB_TMSHIGH_BUSY, 1000, 0);
- ssb_write32(dev, SSB_TMSLOW,
- SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK |
- SSB_TMSLOW_REJECT | SSB_TMSLOW_RESET |
- core_specific_flags);
- /* flush */
- ssb_read32(dev, SSB_TMSLOW);
- udelay(1);
-
- ssb_write32(dev, SSB_TMSLOW,
- SSB_TMSLOW_REJECT | SSB_TMSLOW_RESET |
- core_specific_flags);
- /* flush */
- ssb_read32(dev, SSB_TMSLOW);
- udelay(1);
-}
-EXPORT_SYMBOL(ssb_device_disable);
-
-u32 ssb_dma_translation(struct ssb_device *dev)
-{
- switch(dev->bus->bustype) {
- case SSB_BUSTYPE_SSB:
- return 0;
- case SSB_BUSTYPE_PCI:
- case SSB_BUSTYPE_PCMCIA:
- return SSB_PCI_DMA;
- }
- return 0;
-}
-EXPORT_SYMBOL(ssb_dma_translation);
-
-int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask)
-{
- struct device *dev = &ssb_dev->dev;
-
-#ifdef CONFIG_SSB_PCIHOST
- if (ssb_dev->bus->bustype == SSB_BUSTYPE_PCI &&
- !dma_supported(dev, mask))
- return -EIO;
-#endif
- dev->coherent_dma_mask = mask;
- dev->dma_mask = &dev->coherent_dma_mask;
-
- return 0;
-}
-EXPORT_SYMBOL(ssb_dma_set_mask);
-
-u32 ssb_admatch_base(u32 adm)
-{
- u32 base = 0;
-
- switch (adm & SSB_ADM_TYPE) {
- case SSB_ADM_TYPE0:
- base = (adm & SSB_ADM_BASE0);
- break;
- case SSB_ADM_TYPE1:
- assert(!(adm & SSB_ADM_NEG)); /* unsupported */
- base = (adm & SSB_ADM_BASE1);
- break;
- case SSB_ADM_TYPE2:
- assert(!(adm & SSB_ADM_NEG)); /* unsupported */
- base = (adm & SSB_ADM_BASE2);
- break;
- default:
- assert(0);
- }
-
- return base;
-}
-EXPORT_SYMBOL(ssb_admatch_base);
-
-u32 ssb_admatch_size(u32 adm)
-{
- u32 size = 0;
-
- switch (adm & SSB_ADM_TYPE) {
- case SSB_ADM_TYPE0:
- size = ((adm & SSB_ADM_SZ0) >> SSB_ADM_SZ0_SHIFT);
- break;
- case SSB_ADM_TYPE1:
- assert(!(adm & SSB_ADM_NEG)); /* unsupported */
- size = ((adm & SSB_ADM_SZ1) >> SSB_ADM_SZ1_SHIFT);
- break;
- case SSB_ADM_TYPE2:
- assert(!(adm & SSB_ADM_NEG)); /* unsupported */
- size = ((adm & SSB_ADM_SZ2) >> SSB_ADM_SZ2_SHIFT);
- break;
- default:
- assert(0);
- }
- size = (1 << (size + 1));
-
- return size;
-}
-EXPORT_SYMBOL(ssb_admatch_size);
-
-static int __init ssb_modinit(void)
-{
- int err;
-
- ssb_bustype.name = "ssb";
- err = bus_register(&ssb_bustype);
- if (err)
- return err;
-
- /* Maybe we already registered some buses at early boot.
- * Check for this and attach them
- */
- ssb_buses_lock();
- err = ssb_attach_queued_buses();
- ssb_buses_unlock();
-
- return err;
-}
-subsys_initcall(ssb_modinit);
-
-static void __exit ssb_modexit(void)
-{
- bus_unregister(&ssb_bustype);
-}
-module_exit(ssb_modexit)
--- /dev/null
+/*
+ * Sonics Silicon Backplane
+ * Broadcom ChipCommon core driver
+ *
+ * Copyright 2005, Broadcom Corporation
+ * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+#include <linux/ssb/ssb_regs.h>
+#include <linux/pci.h>
+
+#include "ssb_private.h"
+
+
+/* Clock sources */
+enum {
+ /* PCI clock */
+ SSB_CHIPCO_CLKSRC_PCI,
+ /* Crystal slow clock oscillator */
+ SSB_CHIPCO_CLKSRC_XTALOS,
+ /* Low power oscillator */
+ SSB_CHIPCO_CLKSRC_LOPWROS,
+};
+
+
+static inline u32 chipco_read32(struct ssb_chipcommon *cc,
+ u16 offset)
+{
+ return ssb_read32(cc->dev, offset);
+}
+
+static inline void chipco_write32(struct ssb_chipcommon *cc,
+ u16 offset,
+ u32 value)
+{
+ ssb_write32(cc->dev, offset, value);
+}
+
+void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc,
+ enum ssb_clkmode mode)
+{
+ struct ssb_device *ccdev = cc->dev;
+ struct ssb_bus *bus;
+ u32 tmp;
+
+ if (!ccdev)
+ return;
+ bus = ccdev->bus;
+ /* chipcommon cores prior to rev6 don't support dynamic clock control */
+ if (ccdev->id.revision < 6)
+ return;
+ /* chipcommon cores rev10 are a whole new ball game */
+ if (ccdev->id.revision >= 10)
+ return;
+ if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL))
+ return;
+
+ switch (mode) {
+ case SSB_CLKMODE_SLOW:
+ tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
+ tmp |= SSB_CHIPCO_SLOWCLKCTL_FSLOW;
+ chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
+ break;
+ case SSB_CLKMODE_FAST:
+ ssb_pci_xtal(bus, SSB_GPIO_XTAL, 1); /* Force crystal on */
+ tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
+ tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW;
+ tmp |= SSB_CHIPCO_SLOWCLKCTL_IPLL;
+ chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
+ break;
+ case SSB_CLKMODE_DYNAMIC:
+ tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
+ tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW;
+ tmp &= ~SSB_CHIPCO_SLOWCLKCTL_IPLL;
+ tmp &= ~SSB_CHIPCO_SLOWCLKCTL_ENXTAL;
+ if ((tmp & SSB_CHIPCO_SLOWCLKCTL_SRC) != SSB_CHIPCO_SLOWCLKCTL_SRC_XTAL)
+ tmp |= SSB_CHIPCO_SLOWCLKCTL_ENXTAL;
+ chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
+
+ /* for dynamic control, we have to release our xtal_pu "force on" */
+ if (tmp & SSB_CHIPCO_SLOWCLKCTL_ENXTAL)
+ ssb_pci_xtal(bus, SSB_GPIO_XTAL, 0);
+ break;
+ default:
+ assert(0);
+ }
+}
+
+/* Get the Slow Clock Source */
+static int chipco_pctl_get_slowclksrc(struct ssb_chipcommon *cc)
+{
+ struct ssb_bus *bus = cc->dev->bus;
+ u32 tmp = 0;
+
+ if (cc->dev->id.revision < 6) {
+ if (bus->bustype == SSB_BUSTYPE_SSB ||
+ bus->bustype == SSB_BUSTYPE_PCMCIA)
+ return SSB_CHIPCO_CLKSRC_XTALOS;
+ if (bus->bustype == SSB_BUSTYPE_PCI) {
+ pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &tmp);
+ if (tmp & 0x10)
+ return SSB_CHIPCO_CLKSRC_PCI;
+ return SSB_CHIPCO_CLKSRC_XTALOS;
+ }
+ }
+ if (cc->dev->id.revision < 10) {
+ tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
+ tmp &= 0x7;
+ if (tmp == 0)
+ return SSB_CHIPCO_CLKSRC_LOPWROS;
+ if (tmp == 1)
+ return SSB_CHIPCO_CLKSRC_XTALOS;
+ if (tmp == 2)
+ return SSB_CHIPCO_CLKSRC_PCI;
+ }
+
+ return SSB_CHIPCO_CLKSRC_XTALOS;
+}
+
+/* Get maximum or minimum (depending on get_max flag) slowclock frequency. */
+static int chipco_pctl_clockfreqlimit(struct ssb_chipcommon *cc, int get_max)
+{
+ int limit;
+ int clocksrc;
+ int divisor;
+ u32 tmp;
+
+ clocksrc = chipco_pctl_get_slowclksrc(cc);
+ if (cc->dev->id.revision < 6) {
+ switch (clocksrc) {
+ case SSB_CHIPCO_CLKSRC_PCI:
+ divisor = 64;
+ break;
+ case SSB_CHIPCO_CLKSRC_XTALOS:
+ divisor = 32;
+ break;
+ default:
+ assert(0);
+ divisor = 1;
+ }
+ } else if (cc->dev->id.revision < 10) {
+ switch (clocksrc) {
+ case SSB_CHIPCO_CLKSRC_LOPWROS:
+ divisor = 1;
+ break;
+ case SSB_CHIPCO_CLKSRC_XTALOS:
+ case SSB_CHIPCO_CLKSRC_PCI:
+ tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
+ divisor = (tmp >> 16) + 1;
+ divisor *= 4;
+ break;
+ default:
+ assert(0);
+ divisor = 1;
+ }
+ } else {
+ tmp = chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL);
+ divisor = (tmp >> 16) + 1;
+ divisor *= 4;
+ }
+
+ switch (clocksrc) {
+ case SSB_CHIPCO_CLKSRC_LOPWROS:
+ if (get_max)
+ limit = 43000;
+ else
+ limit = 25000;
+ break;
+ case SSB_CHIPCO_CLKSRC_XTALOS:
+ if (get_max)
+ limit = 20200000;
+ else
+ limit = 19800000;
+ break;
+ case SSB_CHIPCO_CLKSRC_PCI:
+ if (get_max)
+ limit = 34000000;
+ else
+ limit = 25000000;
+ break;
+ default:
+ assert(0);
+ limit = 0;
+ }
+ limit /= divisor;
+
+ return limit;
+}
+
+static void chipco_powercontrol_init(struct ssb_chipcommon *cc)
+{
+ struct ssb_bus *bus = cc->dev->bus;
+
+ if (bus->chip_id == 0x4321) {
+ if (bus->chip_rev == 0)
+ chipco_write32(cc, SSB_CHIPCO_CHIPCTL, 0x3A4);
+ else if (bus->chip_rev == 1)
+ chipco_write32(cc, SSB_CHIPCO_CHIPCTL, 0xA4);
+ }
+
+ if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL))
+ return;
+
+ if (cc->dev->id.revision >= 10) {
+ /* Set Idle Power clock rate to 1Mhz */
+ chipco_write32(cc, SSB_CHIPCO_SYSCLKCTL,
+ (chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL) &
+ 0x0000FFFF) | 0x00040000);
+ } else {
+ int maxfreq;
+
+ maxfreq = chipco_pctl_clockfreqlimit(cc, 1);
+ chipco_write32(cc, SSB_CHIPCO_PLLONDELAY,
+ (maxfreq * 150 + 999999) / 1000000);
+ chipco_write32(cc, SSB_CHIPCO_FREFSELDELAY,
+ (maxfreq * 15 + 999999) / 1000000);
+ }
+}
+
+static void calc_fast_powerup_delay(struct ssb_chipcommon *cc)
+{
+ struct ssb_bus *bus = cc->dev->bus;
+ int minfreq;
+ unsigned int tmp;
+ u32 pll_on_delay;
+
+ if (bus->bustype != SSB_BUSTYPE_PCI)
+ return;
+ if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL))
+ return;
+
+ minfreq = chipco_pctl_clockfreqlimit(cc, 0);
+ pll_on_delay = chipco_read32(cc, SSB_CHIPCO_PLLONDELAY);
+ tmp = (((pll_on_delay + 2) * 1000000) + (minfreq - 1)) / minfreq;
+ assert((tmp & ~0xFFFF) == 0);
+
+ cc->fast_pwrup_delay = tmp;
+}
+
+void ssb_chipcommon_init(struct ssb_chipcommon *cc)
+{
+ if (!cc->dev)
+ return; /* We don't have a ChipCommon */
+ chipco_powercontrol_init(cc);
+ ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
+ calc_fast_powerup_delay(cc);
+}
+
+void ssb_chipco_suspend(struct ssb_chipcommon *cc, pm_message_t state)
+{
+ if (!cc->dev)
+ return;
+ ssb_chipco_set_clockmode(cc, SSB_CLKMODE_SLOW);
+}
+
+void ssb_chipco_resume(struct ssb_chipcommon *cc)
+{
+ if (!cc->dev)
+ return;
+ chipco_powercontrol_init(cc);
+ ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
+}
+
+void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc,
+ u32 *plltype, u32 *n, u32 *m)
+{
+ *n = chipco_read32(cc, SSB_CHIPCO_CLOCK_N);
+ *plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT);
+ switch (*plltype) {
+ case SSB_PLLTYPE_6: /* 100/200 or 120/240 only */
+ *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_MIPS);
+ break;
+ case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */
+ if (cc->dev->bus->chip_id != 0x5365) {
+ *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_M2);
+ break;
+ }
+ /* Fallthough */
+ default:
+ *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_SB);
+ }
+}
+
+void ssb_chipco_timing_init(struct ssb_chipcommon *cc,
+ unsigned long ns)
+{
+ struct ssb_device *dev = cc->dev;
+ struct ssb_bus *bus = dev->bus;
+ u32 tmp;
+
+ /* set register for external IO to control LED. */
+ chipco_write32(cc, SSB_CHIPCO_PROG_CFG, 0x11);
+ tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT; /* Waitcount-3 = 10ns */
+ tmp |= ceildiv(40, ns) << SSB_PROG_WCNT_1_SHIFT; /* Waitcount-1 = 40ns */
+ tmp |= ceildiv(240, ns); /* Waitcount-0 = 240ns */
+ chipco_write32(cc, SSB_CHIPCO_PROG_WAITCNT, tmp); /* 0x01020a0c for a 100Mhz clock */
+
+ /* Set timing for the flash */
+ tmp = ceildiv(10, ns) << SSB_FLASH_WCNT_3_SHIFT; /* Waitcount-3 = 10nS */
+ tmp |= ceildiv(10, ns) << SSB_FLASH_WCNT_1_SHIFT; /* Waitcount-1 = 10nS */
+ tmp |= ceildiv(120, ns); /* Waitcount-0 = 120nS */
+ if ((bus->chip_id == 0x5365) ||
+ (dev->id.revision < 9))
+ chipco_write32(cc, SSB_CHIPCO_FLASH_WAITCNT, tmp);
+ if ((bus->chip_id == 0x5365) ||
+ (dev->id.revision < 9) ||
+ ((bus->chip_id == 0x5350) && (bus->chip_rev == 0)))
+ chipco_write32(cc, SSB_CHIPCO_PCMCIA_MEMWAIT, tmp);
+
+ if (bus->chip_id == 0x5350) {
+ /* Enable EXTIF */
+ tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT; /* Waitcount-3 = 10ns */
+ tmp |= ceildiv(20, ns) << SSB_PROG_WCNT_2_SHIFT; /* Waitcount-2 = 20ns */
+ tmp |= ceildiv(100, ns) << SSB_PROG_WCNT_1_SHIFT; /* Waitcount-1 = 100ns */
+ tmp |= ceildiv(120, ns); /* Waitcount-0 = 120ns */
+ chipco_write32(cc, SSB_CHIPCO_PROG_WAITCNT, tmp); /* 0x01020a0c for a 100Mhz clock */
+ }
+}
+
+
+#ifdef CONFIG_SSB_SERIAL
+int ssb_chipco_serial_init(struct ssb_chipcommon *cc,
+ struct ssb_serial_port *ports)
+{
+ struct ssb_bus *bus = cc->dev->bus;
+ int nr_ports = 0;
+ u32 plltype;
+ unsigned int irq;
+ u32 baud_base, div;
+ u32 i, n;
+
+ plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT);
+ irq = ssb_mips_irq(cc->dev);
+
+ if (plltype == SSB_PLLTYPE_1) {
+ /* PLL clock */
+ baud_base = ssb_calc_clock_rate(plltype,
+ chipco_read32(cc, SSB_CHIPCO_CLOCK_N),
+ chipco_read32(cc, SSB_CHIPCO_CLOCK_M2));
+ div = 1;
+ } else {
+ if (cc->dev->id.revision >= 11) {
+ /* Fixed ALP clock */
+ baud_base = 20000000;
+ div = 1;
+ /* Set the override bit so we don't divide it */
+ chipco_write32(cc, SSB_CHIPCO_CORECTL,
+ SSB_CHIPCO_CORECTL_UARTCLK0);
+ } else if (cc->dev->id.revision >= 3) {
+ /* Internal backplane clock */
+ baud_base = ssb_clockspeed(bus);
+ div = 2; /* Minimum divisor */
+ chipco_write32(cc, SSB_CHIPCO_CLKDIV,
+ (chipco_read32(cc, SSB_CHIPCO_CLKDIV)
+ & ~SSB_CHIPCO_CLKDIV_UART) | div);
+ } else {
+ /* Fixed internal backplane clock */
+ baud_base = 88000000;
+ div = 48;
+ }
+
+ /* Clock source depends on strapping if UartClkOverride is unset */
+ if ((cc->dev->id.revision > 0) &&
+ !(chipco_read32(cc, SSB_CHIPCO_CORECTL) & SSB_CHIPCO_CORECTL_UARTCLK0)) {
+ if ((cc->capabilities & SSB_CHIPCO_CAP_UARTCLK) ==
+ SSB_CHIPCO_CAP_UARTCLK_INT) {
+ /* Internal divided backplane clock */
+ baud_base /= div;
+ } else {
+ /* Assume external clock of 1.8432 MHz */
+ baud_base = 1843200;
+ }
+ }
+ }
+
+ /* Determine the registers of the UARTs */
+ n = (cc->capabilities & SSB_CHIPCO_CAP_NRUART);
+ for (i = 0; i < n; i++) {
+ void __iomem *cc_mmio;
+ void __iomem *uart_regs;
+
+ cc_mmio = cc->dev->bus->mmio + (cc->dev->core_index * SSB_CORE_SIZE);
+ uart_regs = cc_mmio + SSB_CHIPCO_UART0_DATA;
+ /* Offset changed at after rev 0 */
+ if (cc->dev->id.revision == 0)
+ uart_regs += (i * 8);
+ else
+ uart_regs += (i * 256);
+
+ nr_ports++;
+ ports[i].regs = uart_regs;
+ ports[i].irq = irq;
+ ports[i].baud_base = baud_base;
+ ports[i].reg_shift = 0;
+ }
+
+ return nr_ports;
+}
+#endif /* CONFIG_SSB_SERIAL */
+++ /dev/null
-/*
- * Sonics Silicon Backplane
- * Broadcom ChipCommon core driver
- *
- * Copyright 2005, Broadcom Corporation
- * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
- *
- * Licensed under the GNU/GPL. See COPYING for details.
- */
-
-#include <linux/ssb/ssb.h>
-#include <linux/ssb/ssb_regs.h>
-#include <linux/pci.h>
-
-#include "../ssb_private.h"
-
-
-/* Clock sources */
-enum {
- /* PCI clock */
- SSB_CHIPCO_CLKSRC_PCI,
- /* Crystal slow clock oscillator */
- SSB_CHIPCO_CLKSRC_XTALOS,
- /* Low power oscillator */
- SSB_CHIPCO_CLKSRC_LOPWROS,
-};
-
-
-static inline u32 chipco_read32(struct ssb_chipcommon *cc,
- u16 offset)
-{
- return ssb_read32(cc->dev, offset);
-}
-
-static inline void chipco_write32(struct ssb_chipcommon *cc,
- u16 offset,
- u32 value)
-{
- ssb_write32(cc->dev, offset, value);
-}
-
-
-void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc,
- enum ssb_clkmode mode)
-{
- struct ssb_device *ccdev = cc->dev;
- struct ssb_bus *bus;
- u32 tmp;
-
- if (!ccdev)
- return;
- bus = ccdev->bus;
- /* chipcommon cores prior to rev6 don't support dynamic clock control */
- if (ccdev->id.revision < 6)
- return;
- /* chipcommon cores rev10 are a whole new ball game */
- if (ccdev->id.revision >= 10)
- return;
- if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL))
- return;
-
- switch (mode) {
- case SSB_CLKMODE_SLOW:
- tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
- tmp |= SSB_CHIPCO_SLOWCLKCTL_FSLOW;
- chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
- break;
- case SSB_CLKMODE_FAST:
- ssb_pci_xtal(bus, SSB_GPIO_XTAL, 1); /* Force crystal on */
- tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
- tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW;
- tmp |= SSB_CHIPCO_SLOWCLKCTL_IPLL;
- chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
- break;
- case SSB_CLKMODE_DYNAMIC:
- tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
- tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW;
- tmp &= ~SSB_CHIPCO_SLOWCLKCTL_IPLL;
- tmp &= ~SSB_CHIPCO_SLOWCLKCTL_ENXTAL;
- if ((tmp & SSB_CHIPCO_SLOWCLKCTL_SRC) != SSB_CHIPCO_SLOWCLKCTL_SRC_XTAL)
- tmp |= SSB_CHIPCO_SLOWCLKCTL_ENXTAL;
- chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
-
- /* for dynamic control, we have to release our xtal_pu "force on" */
- if (tmp & SSB_CHIPCO_SLOWCLKCTL_ENXTAL)
- ssb_pci_xtal(bus, SSB_GPIO_XTAL, 0);
- break;
- default:
- assert(0);
- }
-}
-EXPORT_SYMBOL(ssb_chipco_set_clockmode);
-
-/* Get the Slow Clock Source */
-static int chipco_pctl_get_slowclksrc(struct ssb_chipcommon *cc)
-{
- struct ssb_bus *bus = cc->dev->bus;
- u32 tmp = 0;
-
- if (cc->dev->id.revision < 6) {
- if (bus->bustype == SSB_BUSTYPE_SSB /*TODO ||
- bus->bustype == SSB_BUSTYPE_PCMCIA*/)
- return SSB_CHIPCO_CLKSRC_XTALOS;
- if (bus->bustype == SSB_BUSTYPE_PCI) {
- pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &tmp);
- if (tmp & 0x10)
- return SSB_CHIPCO_CLKSRC_PCI;
- return SSB_CHIPCO_CLKSRC_XTALOS;
- }
- }
- if (cc->dev->id.revision < 10) {
- tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
- tmp &= 0x7;
- if (tmp == 0)
- return SSB_CHIPCO_CLKSRC_LOPWROS;
- if (tmp == 1)
- return SSB_CHIPCO_CLKSRC_XTALOS;
- if (tmp == 2)
- return SSB_CHIPCO_CLKSRC_PCI;
- }
-
- return SSB_CHIPCO_CLKSRC_XTALOS;
-}
-
-/* Get maximum or minimum (depending on get_max flag) slowclock frequency. */
-static int chipco_pctl_clockfreqlimit(struct ssb_chipcommon *cc, int get_max)
-{
- int limit;
- int clocksrc;
- int divisor;
- u32 tmp;
-
- clocksrc = chipco_pctl_get_slowclksrc(cc);
- if (cc->dev->id.revision < 6) {
- switch (clocksrc) {
- case SSB_CHIPCO_CLKSRC_PCI:
- divisor = 64;
- break;
- case SSB_CHIPCO_CLKSRC_XTALOS:
- divisor = 32;
- break;
- default:
- assert(0);
- divisor = 1;
- }
- } else if (cc->dev->id.revision < 10) {
- switch (clocksrc) {
- case SSB_CHIPCO_CLKSRC_LOPWROS:
- divisor = 1;
- break;
- case SSB_CHIPCO_CLKSRC_XTALOS:
- case SSB_CHIPCO_CLKSRC_PCI:
- tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
- divisor = (tmp >> 16) + 1;
- divisor *= 4;
- break;
- default:
- assert(0);
- divisor = 1;
- }
- } else {
- tmp = chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL);
- divisor = (tmp >> 16) + 1;
- divisor *= 4;
- }
-
- switch (clocksrc) {
- case SSB_CHIPCO_CLKSRC_LOPWROS:
- if (get_max)
- limit = 43000;
- else
- limit = 25000;
- break;
- case SSB_CHIPCO_CLKSRC_XTALOS:
- if (get_max)
- limit = 20200000;
- else
- limit = 19800000;
- break;
- case SSB_CHIPCO_CLKSRC_PCI:
- if (get_max)
- limit = 34000000;
- else
- limit = 25000000;
- break;
- default:
- assert(0);
- limit = 0;
- }
- limit /= divisor;
-
- return limit;
-}
-
-static void chipco_powercontrol_init(struct ssb_chipcommon *cc)
-{
- struct ssb_bus *bus = cc->dev->bus;
-
- if (bus->chip_id == 0x4321) {
- if (bus->chip_rev == 0)
- chipco_write32(cc, SSB_CHIPCO_CHIPCTL, 0x3A4);
- else if (bus->chip_rev == 1)
- chipco_write32(cc, SSB_CHIPCO_CHIPCTL, 0xA4);
- }
-
- if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL))
- return;
-
- if (cc->dev->id.revision >= 10) {
- /* Set Idle Power clock rate to 1Mhz */
- chipco_write32(cc, SSB_CHIPCO_SYSCLKCTL,
- (chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL) &
- 0x0000FFFF) | 0x00040000);
- } else {
- int maxfreq;
-
- maxfreq = chipco_pctl_clockfreqlimit(cc, 1);
- chipco_write32(cc, SSB_CHIPCO_PLLONDELAY,
- (maxfreq * 150 + 999999) / 1000000);
- chipco_write32(cc, SSB_CHIPCO_FREFSELDELAY,
- (maxfreq * 15 + 999999) / 1000000);
- }
-}
-
-static void calc_fast_powerup_delay(struct ssb_chipcommon *cc)
-{
- struct ssb_bus *bus = cc->dev->bus;
- int minfreq;
- unsigned int tmp;
- u32 pll_on_delay;
-
- if (bus->bustype != SSB_BUSTYPE_PCI)
- return;
- if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL))
- return;
-
- minfreq = chipco_pctl_clockfreqlimit(cc, 0);
- pll_on_delay = chipco_read32(cc, SSB_CHIPCO_PLLONDELAY);
- tmp = (((pll_on_delay + 2) * 1000000) + (minfreq - 1)) / minfreq;
- assert((tmp & ~0xFFFF) == 0);
-
- cc->fast_pwrup_delay = tmp;
-}
-
-void ssb_chipcommon_init(struct ssb_chipcommon *cc)
-{
- if (!cc->dev)
- return; /* We don't have a ChipCommon */
- ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
- chipco_powercontrol_init(cc);
- calc_fast_powerup_delay(cc);
-}
-
-void ssb_chipco_suspend(struct ssb_chipcommon *cc, pm_message_t state)
-{
- if (!cc->dev)
- return;
- ssb_chipco_set_clockmode(cc, SSB_CLKMODE_SLOW);
-}
-
-void ssb_chipco_resume(struct ssb_chipcommon *cc)
-{
- if (!cc->dev)
- return;
- ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
- chipco_powercontrol_init(cc);
-}
-
-void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc, u32 chip_id, u32 *rate,
- u32 *plltype, u32 *n, u32 *m)
-{
- *rate = 0;
- *n = chipco_read32(cc, SSB_CHIPCO_CLOCK_N);
- *plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT);
- switch (*plltype) {
- case SSB_PLLTYPE_2:
- case SSB_PLLTYPE_4:
- case SSB_PLLTYPE_6:
- case SSB_PLLTYPE_7:
- *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_MIPS);
- break;
- case SSB_PLLTYPE_5:
- *rate = 200000000;
- break;
- case SSB_PLLTYPE_3:
- /* 5350 uses m2 to control mips */
- *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_M2);
- break;
- default:
- *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_SB);
- break;
- }
-
- if (*rate == 0 && chip_id == 0x5365)
- *rate = 200000000;
-}
-
-void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc,
- u32 *plltype, u32 *n, u32 *m)
-{
- *n = chipco_read32(cc, SSB_CHIPCO_CLOCK_N);
- *plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT);
- switch (*plltype) {
- case SSB_PLLTYPE_6: /* 100/200 or 120/240 only */
- *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_MIPS);
- break;
- case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */
- if (cc->dev->bus->chip_id != 0x5365) {
- *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_M2);
- break;
- }
- /* Fallthough */
- default:
- *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_SB);
- }
-}
-
-void ssb_chipco_timing_init(struct ssb_chipcommon *cc,
- unsigned long ns)
-{
- struct ssb_device *dev = cc->dev;
- struct ssb_bus *bus = dev->bus;
- u32 tmp;
-
- /* set register for external IO to control LED. */
- chipco_write32(cc, SSB_CHIPCO_PROG_CFG, 0x11);
- tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT; /* Waitcount-3 = 10ns */
- tmp |= ceildiv(40, ns) << SSB_PROG_WCNT_1_SHIFT; /* Waitcount-1 = 40ns */
- tmp |= ceildiv(240, ns); /* Waitcount-0 = 240ns */
- chipco_write32(cc, SSB_CHIPCO_PROG_WAITCNT, tmp); /* 0x01020a0c for a 100Mhz clock */
-
- /* Set timing for the flash */
- tmp = ceildiv(10, ns) << SSB_FLASH_WCNT_3_SHIFT; /* Waitcount-3 = 10nS */
- tmp |= ceildiv(10, ns) << SSB_FLASH_WCNT_1_SHIFT; /* Waitcount-1 = 10nS */
- tmp |= ceildiv(120, ns); /* Waitcount-0 = 120nS */
- if ((bus->chip_id == 0x5365) ||
- (dev->id.revision < 9))
- chipco_write32(cc, SSB_CHIPCO_FLASH_WAITCNT, tmp);
- if ((bus->chip_id == 0x5365) ||
- (dev->id.revision < 9) ||
- ((bus->chip_id == 0x5350) && (bus->chip_rev == 0)))
- chipco_write32(cc, SSB_CHIPCO_PCMCIA_MEMWAIT, tmp);
-
- if (bus->chip_id == 0x5350) {
- /* Enable EXTIF */
- tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT; /* Waitcount-3 = 10ns */
- tmp |= ceildiv(20, ns) << SSB_PROG_WCNT_2_SHIFT; /* Waitcount-2 = 20ns */
- tmp |= ceildiv(100, ns) << SSB_PROG_WCNT_1_SHIFT; /* Waitcount-1 = 100ns */
- tmp |= ceildiv(120, ns); /* Waitcount-0 = 120ns */
- chipco_write32(cc, SSB_CHIPCO_PROG_WAITCNT, tmp); /* 0x01020a0c for a 100Mhz clock */
- }
-}
-
-#ifdef CONFIG_SSB_SERIAL
-int ssb_chipco_serial_init(struct ssb_chipcommon *cc,
- struct ssb_serial_port *ports)
-{
- struct ssb_bus *bus = cc->dev->bus;
- int nr_ports = 0;
- u32 plltype;
- unsigned int irq;
- u32 baud_base, div;
- u32 i, n;
-
- plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT);
- irq = ssb_mips_irq(cc->dev);
-
- if (plltype == SSB_PLLTYPE_1) {
- /* PLL clock */
- baud_base = ssb_calc_clock_rate(plltype,
- chipco_read32(cc, SSB_CHIPCO_CLOCK_N),
- chipco_read32(cc, SSB_CHIPCO_CLOCK_M2));
- div = 1;
- } else {
- if (cc->dev->id.revision >= 11) {
- /* Fixed ALP clock */
- baud_base = 20000000;
- div = 1;
- /* Set the override bit so we don't divide it */
- chipco_write32(cc, SSB_CHIPCO_CORECTL,
- SSB_CHIPCO_CORECTL_UARTCLK0);
- } else if (cc->dev->id.revision >= 3) {
- /* Internal backplane clock */
- baud_base = ssb_clockspeed(bus);
- div = 2; /* Minimum divisor */
- chipco_write32(cc, SSB_CHIPCO_CLKDIV,
- (chipco_read32(cc, SSB_CHIPCO_CLKDIV)
- & ~SSB_CHIPCO_CLKDIV_UART) | div);
- } else {
- /* Fixed internal backplane clock */
- baud_base = 88000000;
- div = 48;
- }
-
- /* Clock source depends on strapping if UartClkOverride is unset */
- if ((cc->dev->id.revision > 0) &&
- !(chipco_read32(cc, SSB_CHIPCO_CORECTL) & SSB_CHIPCO_CORECTL_UARTCLK0)) {
- if ((cc->capabilities & SSB_CHIPCO_CAP_UARTCLK) ==
- SSB_CHIPCO_CAP_UARTCLK_INT) {
- /* Internal divided backplane clock */
- baud_base /= div;
- } else {
- /* Assume external clock of 1.8432 MHz */
- baud_base = 1843200;
- }
- }
- }
-
- /* Determine the registers of the UARTs */
- n = (cc->capabilities & SSB_CHIPCO_CAP_NRUART);
- for (i = 0; i < n; i++) {
- void __iomem *cc_mmio;
- void __iomem *uart_regs;
-
- cc_mmio = cc->dev->bus->mmio + (cc->dev->core_index * SSB_CORE_SIZE);
- uart_regs = cc_mmio + SSB_CHIPCO_UART0_DATA;
- /* Offset changed at after rev 0 */
- if (cc->dev->id.revision == 0)
- uart_regs += (i * 8);
- else
- uart_regs += (i * 256);
-
- nr_ports++;
- ports[i].regs = uart_regs;
- ports[i].irq = irq;
- ports[i].baud_base = baud_base;
- ports[i].reg_shift = 0;
- }
-
- return nr_ports;
-}
-#endif /* CONFIG_SSB_SERIAL */
-
-/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
-int
-ssb_chipco_watchdog(struct ssb_chipcommon *cc, uint ticks)
-{
- /* instant NMI */
- chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks);
- return 0;
-}
-EXPORT_SYMBOL(ssb_chipco_watchdog);
+++ /dev/null
-/*
- * Sonics Silicon Backplane
- * Broadcom MIPS core driver
- *
- * Copyright 2005, Broadcom Corporation
- * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
- * Copyright 2006, 2007, Felix Fietkau <nbd@openwrt.org>
- *
- * Licensed under the GNU/GPL. See COPYING for details.
- */
-
-#include <linux/ssb/ssb.h>
-
-#include <linux/serial.h>
-#include <linux/serial_core.h>
-#include <linux/serial_reg.h>
-#include <asm/time.h>
-
-#include "../ssb_private.h"
-
-#define mips_read32(mcore, offset) ssb_read32((mcore)->dev, offset)
-#define mips_write32(mcore, offset, value) ssb_write32((mcore)->dev, offset, value)
-#define extif_read32(extif, offset) ssb_read32((extif)->dev, offset)
-#define extif_write32(extif, offset, value) ssb_write32((extif)->dev, offset, value)
-
-static const u32 ipsflag_irq_mask[] = {
- 0,
- SSB_IPSFLAG_IRQ1,
- SSB_IPSFLAG_IRQ2,
- SSB_IPSFLAG_IRQ3,
- SSB_IPSFLAG_IRQ4,
-};
-
-static const u32 ipsflag_irq_shift[] = {
- 0,
- SSB_IPSFLAG_IRQ1_SHIFT,
- SSB_IPSFLAG_IRQ2_SHIFT,
- SSB_IPSFLAG_IRQ3_SHIFT,
- SSB_IPSFLAG_IRQ4_SHIFT,
-};
-
-static inline u32 ssb_irqflag(struct ssb_device *dev)
-{
- return ssb_read32(dev, SSB_TPSFLAG) & SSB_TPSFLAG_BPFLAG;
-}
-
-/* Get the MIPS IRQ assignment for a specified device.
- * If unassigned, 0 is returned.
- */
-unsigned int ssb_mips_irq(struct ssb_device *dev)
-{
- struct ssb_bus *bus = dev->bus;
- u32 irqflag;
- u32 ipsflag;
- u32 tmp;
- unsigned int irq;
-
- irqflag = ssb_irqflag(dev);
- ipsflag = ssb_read32(bus->mipscore.dev, SSB_IPSFLAG);
- for (irq = 1; irq <= 4; irq++) {
- tmp = ((ipsflag & ipsflag_irq_mask[irq]) >> ipsflag_irq_shift[irq]);
- if (tmp == irqflag)
- break;
- }
- if (irq == 5)
- irq = 0;
-
- return irq;
-}
-
-static void clear_irq(struct ssb_bus *bus, unsigned int irq)
-{
- struct ssb_device *dev = bus->mipscore.dev;
-
- /* Clear the IRQ in the MIPScore backplane registers */
- if (irq == 0) {
- ssb_write32(dev, SSB_INTVEC, 0);
- } else {
- ssb_write32(dev, SSB_IPSFLAG,
- ssb_read32(dev, SSB_IPSFLAG) |
- ipsflag_irq_mask[irq]);
- }
-}
-
-static void set_irq(struct ssb_device *dev, unsigned int irq)
-{
- unsigned int oldirq = ssb_mips_irq(dev);
- struct ssb_bus *bus = dev->bus;
- struct ssb_device *mdev = bus->mipscore.dev;
- u32 irqflag = ssb_irqflag(dev);
-
- dev->irq = irq + 2;
-
- ssb_dprintk(KERN_INFO PFX
- "set_irq: core 0x%04x, irq %d => %d\n",
- dev->id.coreid, oldirq, irq);
- /* clear the old irq */
- if (oldirq == 0)
- ssb_write32(mdev, SSB_INTVEC, (~(1 << irqflag) & ssb_read32(mdev, SSB_INTVEC)));
- else
- clear_irq(bus, oldirq);
-
- /* assign the new one */
- if (irq == 0)
- ssb_write32(mdev, SSB_INTVEC, ((1 << irqflag) & ssb_read32(mdev, SSB_INTVEC)));
-
- irqflag <<= ipsflag_irq_shift[irq];
- irqflag |= (ssb_read32(mdev, SSB_IPSFLAG) & ~ipsflag_irq_mask[irq]);
- ssb_write32(mdev, SSB_IPSFLAG, irqflag);
-}
-
-static int ssb_extif_serial_init(struct ssb_extif *dev, struct ssb_serial_port *ports)
-{
- //TODO if (EXTIF available
-#if 0
- extifregs_t *eir = (extifregs_t *) regs;
- sbconfig_t *sb;
-
- /* Determine external UART register base */
- sb = (sbconfig_t *)((ulong) eir + SBCONFIGOFF);
- base = EXTIF_CFGIF_BASE(sb_base(R_REG(&sb->sbadmatch1)));
-
- /* Determine IRQ */
- irq = sb_irq(sbh);
-
- /* Disable GPIO interrupt initially */
- W_REG(&eir->gpiointpolarity, 0);
- W_REG(&eir->gpiointmask, 0);
-
- /* Search for external UARTs */
- n = 2;
- for (i = 0; i < 2; i++) {
- regs = (void *) REG_MAP(base + (i * 8), 8);
- if (BCMINIT(serial_exists)(regs)) {
- /* Set GPIO 1 to be the external UART IRQ */
- W_REG(&eir->gpiointmask, 2);
- if (add)
- add(regs, irq, 13500000, 0);
- }
- }
-
- /* Add internal UART if enabled */
- if (R_REG(&eir->corecontrol) & CC_UE)
- if (add)
- add((void *) &eir->uartdata, irq, sb_clock(sbh), 2);
-
-#endif
-
-}
-
-
-static void ssb_mips_serial_init(struct ssb_mipscore *mcore)
-{
- struct ssb_bus *bus = mcore->dev->bus;
-
- if (bus->extif.dev)
- mcore->nr_serial_ports = ssb_extif_serial_init(&bus->extif, mcore->serial_ports);
- else if (bus->chipco.dev)
- mcore->nr_serial_ports = ssb_chipco_serial_init(&bus->chipco, mcore->serial_ports);
- else
- mcore->nr_serial_ports = 0;
-}
-
-static void ssb_mips_flash_detect(struct ssb_mipscore *mcore)
-{
- struct ssb_bus *bus = mcore->dev->bus;
-
- mcore->flash_buswidth = 2;
- if (bus->chipco.dev) {
- mcore->flash_window = 0x1c000000;
- mcore->flash_window_size = 0x02000000;
- if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
- & SSB_CHIPCO_CFG_DS16) == 0)
- mcore->flash_buswidth = 1;
- } else {
- mcore->flash_window = 0x1fc00000;
- mcore->flash_window_size = 0x00400000;
- }
-}
-
-static void ssb_extif_timing_init(struct ssb_extif *extif, u32 ns)
-{
- u32 tmp;
-
- /* Initialize extif so we can get to the LEDs and external UART */
- extif_write32(extif, SSB_EXTIF_PROG_CFG, SSB_EXTCFG_EN);
-
- /* Set timing for the flash */
- tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT;
- tmp |= ceildiv(40, ns) << SSB_PROG_WCNT_1_SHIFT;
- tmp |= ceildiv(120, ns);
- extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp);
-
- /* Set programmable interface timing for external uart */
- tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT;
- tmp |= ceildiv(20, ns) << SSB_PROG_WCNT_2_SHIFT;
- tmp |= ceildiv(100, ns) << SSB_PROG_WCNT_1_SHIFT;
- tmp |= ceildiv(120, ns);
- extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp);
-}
-
-static inline void ssb_extif_get_clockcontrol(struct ssb_extif *extif,
- u32 *pll_type, u32 *n, u32 *m)
-{
- *pll_type = SSB_PLLTYPE_1;
- *n = extif_read32(extif, SSB_EXTIF_CLOCK_N);
- *m = extif_read32(extif, SSB_EXTIF_CLOCK_SB);
-}
-
-u32 ssb_cpu_clock(struct ssb_mipscore *mcore)
-{
- struct ssb_bus *bus = mcore->dev->bus;
- u32 pll_type, n, m, rate = 0;
-
- if (bus->extif.dev) {
- ssb_extif_get_clockcontrol(&bus->extif, &pll_type, &n, &m);
- } else if (bus->chipco.dev) {
- ssb_chipco_get_clockcpu(&bus->chipco, bus->chip_id, &rate,
- &pll_type, &n, &m);
- } else
- return 0;
-
- if (rate == 0)
- rate = ssb_calc_clock_rate(pll_type, n, m);
-
- if (pll_type == SSB_PLLTYPE_6)
- rate *= 2;
-
- return rate;
-}
-
-void ssb_mipscore_init(struct ssb_mipscore *mcore)
-{
- struct ssb_bus *bus = mcore->dev->bus;
- struct ssb_device *dev;
- unsigned long hz, ns;
- unsigned int irq, i;
-
- if (!mcore->dev)
- return; /* We don't have a MIPS core */
-
- ssb_dprintk(KERN_INFO PFX "Initializing MIPS core...\n");
-
- hz = ssb_clockspeed(bus);
- if (!hz)
- hz = 100000000;
- ns = 1000000000 / hz;
-
- if (bus->extif.dev)
- ssb_extif_timing_init(&bus->extif, ns);
- else if (bus->chipco.dev)
- ssb_chipco_timing_init(&bus->chipco, ns);
-
- /* Assign IRQs to all cores on the bus, start with irq line 2, because serial usually takes 1 */
- for (irq = 2, i = 0; i < bus->nr_devices; i++) {
- dev = &(bus->devices[i]);
- dev->irq = ssb_mips_irq(dev) + 2;
- switch(dev->id.coreid) {
- case SSB_DEV_USB11_HOST:
- /* shouldn't need a separate irq line for non-4710, most of them have a proper
- * external usb controller on the pci */
- if ((bus->chip_id == 0x4710) && (irq <= 4)) {
- set_irq(dev, irq++);
- break;
- }
- case SSB_DEV_PCI:
- case SSB_DEV_ETHERNET:
- case SSB_DEV_80211:
- case SSB_DEV_USB20_HOST:
- /* These devices get their own IRQ line if available, the rest goes on IRQ0 */
- if (irq <= 4) {
- set_irq(dev, irq++);
- break;
- }
- }
- }
-
- ssb_mips_serial_init(mcore);
- ssb_mips_flash_detect(mcore);
-}
-
-EXPORT_SYMBOL(ssb_mips_irq);
--- /dev/null
+/*
+ * Sonics Silicon Backplane
+ * Broadcom MIPS core driver
+ *
+ * Copyright 2005, Broadcom Corporation
+ * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+
+#include <linux/serial.h>
+#include <linux/serial_core.h>
+#include <linux/serial_reg.h>
+#include <asm/time.h>
+
+#include "ssb_private.h"
+
+
+static inline u32 mips_read32(struct ssb_mipscore *mcore,
+ u16 offset)
+{
+ return ssb_read32(mcore->dev, offset);
+}
+
+static inline void mips_write32(struct ssb_mipscore *mcore,
+ u16 offset,
+ u32 value)
+{
+ ssb_write32(mcore->dev, offset, value);
+}
+
+static const u32 ipsflag_irq_mask[] = {
+ 0,
+ SSB_IPSFLAG_IRQ1,
+ SSB_IPSFLAG_IRQ2,
+ SSB_IPSFLAG_IRQ3,
+ SSB_IPSFLAG_IRQ4,
+};
+
+static const u32 ipsflag_irq_shift[] = {
+ 0,
+ SSB_IPSFLAG_IRQ1_SHIFT,
+ SSB_IPSFLAG_IRQ2_SHIFT,
+ SSB_IPSFLAG_IRQ3_SHIFT,
+ SSB_IPSFLAG_IRQ4_SHIFT,
+};
+
+static inline u32 ssb_irqflag(struct ssb_device *dev)
+{
+ return ssb_read32(dev, SSB_TPSFLAG) & SSB_TPSFLAG_BPFLAG;
+}
+
+/* Get the MIPS IRQ assignment for a specified device.
+ * If unassigned, 0 is returned.
+ */
+unsigned int ssb_mips_irq(struct ssb_device *dev)
+{
+ struct ssb_bus *bus = dev->bus;
+ u32 irqflag;
+ u32 ipsflag;
+ u32 tmp;
+ unsigned int irq;
+
+ irqflag = ssb_irqflag(dev);
+ ipsflag = ssb_read32(bus->mipscore.dev, SSB_IPSFLAG);
+ for (irq = 1; irq <= 4; irq++) {
+ tmp = ((ipsflag & ipsflag_irq_mask[irq]) >> ipsflag_irq_shift[irq]);
+ if (tmp == irqflag)
+ break;
+ }
+ if (irq == 5)
+ irq = 0;
+
+ return irq;
+}
+
+static void clear_irq(struct ssb_bus *bus, unsigned int irq)
+{
+ struct ssb_device *dev = bus->mipscore.dev;
+
+ /* Clear the IRQ in the MIPScore backplane registers */
+ if (irq == 0) {
+ ssb_write32(dev, SSB_INTVEC, 0);
+ } else {
+ ssb_write32(dev, SSB_IPSFLAG,
+ ssb_read32(dev, SSB_IPSFLAG) |
+ ipsflag_irq_mask[irq]);
+ }
+}
+
+static void set_irq(struct ssb_device *dev, unsigned int irq)
+{
+ unsigned int oldirq = ssb_mips_irq(dev);
+ struct ssb_bus *bus = dev->bus;
+ struct ssb_device *mdev = bus->mipscore.dev;
+ u32 irqflag = ssb_irqflag(dev);
+
+ dev->irq = irq + 2;
+
+ ssb_dprintk(KERN_INFO PFX
+ "set_irq: core 0x%04x, irq %d => %d\n",
+ dev->id.coreid, oldirq, irq);
+ /* clear the old irq */
+ if (oldirq == 0)
+ ssb_write32(mdev, SSB_INTVEC, (~(1 << irqflag) & ssb_read32(mdev, SSB_INTVEC)));
+ else
+ clear_irq(bus, oldirq);
+
+ /* assign the new one */
+ if (irq == 0)
+ ssb_write32(mdev, SSB_INTVEC, ((1 << irqflag) & ssb_read32(mdev, SSB_INTVEC)));
+
+ irqflag <<= ipsflag_irq_shift[irq];
+ irqflag |= (ssb_read32(mdev, SSB_IPSFLAG) & ~ipsflag_irq_mask[irq]);
+ ssb_write32(mdev, SSB_IPSFLAG, irqflag);
+}
+
+/* XXX: leave here or move into separate extif driver? */
+static int ssb_extif_serial_init(struct ssb_device *dev, struct ssb_serial_ports *ports)
+{
+
+}
+
+
+static void ssb_mips_serial_init(struct ssb_mipscore *mcore)
+{
+ struct ssb_bus *bus = mcore->dev->bus;
+
+ //TODO if (EXTIF available
+#if 0
+ extifregs_t *eir = (extifregs_t *) regs;
+ sbconfig_t *sb;
+
+ /* Determine external UART register base */
+ sb = (sbconfig_t *)((ulong) eir + SBCONFIGOFF);
+ base = EXTIF_CFGIF_BASE(sb_base(R_REG(&sb->sbadmatch1)));
+
+ /* Determine IRQ */
+ irq = sb_irq(sbh);
+
+ /* Disable GPIO interrupt initially */
+ W_REG(&eir->gpiointpolarity, 0);
+ W_REG(&eir->gpiointmask, 0);
+
+ /* Search for external UARTs */
+ n = 2;
+ for (i = 0; i < 2; i++) {
+ regs = (void *) REG_MAP(base + (i * 8), 8);
+ if (BCMINIT(serial_exists)(regs)) {
+ /* Set GPIO 1 to be the external UART IRQ */
+ W_REG(&eir->gpiointmask, 2);
+ if (add)
+ add(regs, irq, 13500000, 0);
+ }
+ }
+
+ /* Add internal UART if enabled */
+ if (R_REG(&eir->corecontrol) & CC_UE)
+ if (add)
+ add((void *) &eir->uartdata, irq, sb_clock(sbh), 2);
+
+#endif
+ if (bus->extif.dev)
+ mcore->nr_serial_ports = ssb_extif_serial_init(&bus->extif, mcore->serial_ports);
+ else if (bus->chipco.dev)
+ mcore->nr_serial_ports = ssb_chipco_serial_init(&bus->chipco, mcore->serial_ports);
+ else
+ mcore->nr_serial_ports = 0;
+}
+
+static void ssb_mips_flash_detect(struct ssb_mipscore *mcore)
+{
+ struct ssb_bus *bus = mcore->dev->bus;
+
+ if (bus->chipco.dev) {
+ mcore->flash_window = 0x1c000000;
+ mcore->flash_window_size = 0x800000;
+ } else {
+ mcore->flash_window = 0x1fc00000;
+ mcore->flash_window_size = 0x400000;
+ }
+}
+
+
+static void ssb_cpu_clock(struct ssb_mipscore *mcore)
+{
+}
+
+void ssb_mipscore_init(struct ssb_mipscore *mcore)
+{
+ struct ssb_bus *bus = mcore->dev->bus;
+ struct ssb_device *dev;
+ unsigned long hz, ns;
+ unsigned int irq, i;
+
+ if (!mcore->dev)
+ return; /* We don't have a MIPS core */
+
+ ssb_dprintk(KERN_INFO PFX "Initializing MIPS core...\n");
+
+ hz = ssb_clockspeed(bus);
+ if (!hz)
+ hz = 100000000;
+ ns = 1000000000 / hz;
+
+//TODO
+#if 0
+ if (have EXTIF) {
+ /* Initialize extif so we can get to the LEDs and external UART */
+ W_REG(&eir->prog_config, CF_EN);
+
+ /* Set timing for the flash */
+ tmp = CEIL(10, ns) << FW_W3_SHIFT; /* W3 = 10nS */
+ tmp = tmp | (CEIL(40, ns) << FW_W1_SHIFT); /* W1 = 40nS */
+ tmp = tmp | CEIL(120, ns); /* W0 = 120nS */
+ W_REG(&eir->prog_waitcount, tmp); /* 0x01020a0c for a 100Mhz clock */
+
+ /* Set programmable interface timing for external uart */
+ tmp = CEIL(10, ns) << FW_W3_SHIFT; /* W3 = 10nS */
+ tmp = tmp | (CEIL(20, ns) << FW_W2_SHIFT); /* W2 = 20nS */
+ tmp = tmp | (CEIL(100, ns) << FW_W1_SHIFT); /* W1 = 100nS */
+ tmp = tmp | CEIL(120, ns); /* W0 = 120nS */
+ W_REG(&eir->prog_waitcount, tmp);
+ }
+ else... chipcommon
+#endif
+ if (bus->chipco.dev)
+ ssb_chipco_timing_init(&bus->chipco, ns);
+
+ /* Assign IRQs to all cores on the bus, start with irq line 2, because serial usually takes 1 */
+ for (irq = 2, i = 0; i < bus->nr_devices; i++) {
+ dev = &(bus->devices[i]);
+ dev->irq = ssb_mips_irq(dev) + 2;
+ switch(dev->id.coreid) {
+ case SSB_DEV_USB11_HOST:
+ /* shouldn't need a separate irq line for non-4710, most of them have a proper
+ * external usb controller on the pci */
+ if ((bus->chip_id == 0x4710) && (irq <= 4)) {
+ set_irq(dev, irq++);
+ break;
+ }
+ case SSB_DEV_PCI:
+ case SSB_DEV_ETHERNET:
+ case SSB_DEV_80211:
+ case SSB_DEV_USB20_HOST:
+ /* These devices get their own IRQ line if available, the rest goes on IRQ0 */
+ if (irq <= 4) {
+ set_irq(dev, irq++);
+ break;
+ }
+ }
+ }
+
+ ssb_mips_serial_init(mcore);
+ ssb_mips_flash_detect(mcore);
+}
+++ /dev/null
-/*
- * Sonics Silicon Backplane
- * Broadcom PCI-core driver
- *
- * Copyright 2005, Broadcom Corporation
- * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
- *
- * Licensed under the GNU/GPL. See COPYING for details.
- */
-
-#include <linux/ssb/ssb.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-
-#include "../ssb_private.h"
-
-static inline
-u32 pcicore_read32(struct ssb_pcicore *pc, u16 offset)
-{
- return ssb_read32(pc->dev, offset);
-}
-
-static inline
-void pcicore_write32(struct ssb_pcicore *pc, u16 offset, u32 value)
-{
- ssb_write32(pc->dev, offset, value);
-}
-
-/**************************************************
- * Code for hostmode operation.
- **************************************************/
-
-#ifdef CONFIG_SSB_PCICORE_HOSTMODE
-
-#include <asm/paccess.h>
-/* Read the bus and catch bus exceptions. This is MIPS specific. */
-#define mips_busprobe(val, addr) get_dbe((val), (addr))
-
-/* Assume one-hot slot wiring */
-#define SSB_PCI_SLOT_MAX 16
-
-/* Global lock is OK, as we won't have more than one extpci anyway. */
-static DEFINE_SPINLOCK(cfgspace_lock);
-/* Core to access the external PCI config space. Can only have one. */
-static struct ssb_pcicore *extpci_core;
-
-u32 pci_iobase = 0x100;
-u32 pci_membase = SSB_PCI_DMA;
-
-int pcibios_plat_dev_init(struct pci_dev *d)
-{
- struct resource *res;
- int pos, size;
- u32 *base;
-
- printk("PCI: Fixing up device %s\n", pci_name(d));
-
- /* Fix up resource bases */
- for (pos = 0; pos < 6; pos++) {
- res = &d->resource[pos];
- base = ((res->flags & IORESOURCE_IO) ? &pci_iobase : &pci_membase);
- if (res->end) {
- size = res->end - res->start + 1;
- if (*base & (size - 1))
- *base = (*base + size) & ~(size - 1);
- res->start = *base;
- res->end = res->start + size - 1;
- *base += size;
- pci_write_config_dword(d, PCI_BASE_ADDRESS_0 + (pos << 2), res->start);
- }
- /* Fix up PCI bridge BAR0 only */
- if (d->bus->number == 0 && PCI_SLOT(d->devfn) == 0)
- break;
- }
- /* Fix up interrupt lines */
- d->irq = ssb_mips_irq(extpci_core->dev) + 2;
- pci_write_config_byte(d, PCI_INTERRUPT_LINE, d->irq);
-
- return 0;
-}
-
-static void __init ssb_fixup_pcibridge(struct pci_dev *dev)
-{
- if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) != 0)
- return;
-
- printk("PCI: fixing up bridge\n");
-
- /* Enable PCI bridge bus mastering and memory space */
- pci_set_master(dev);
- pcibios_enable_device(dev, ~0);
-
- /* Enable PCI bridge BAR1 prefetch and burst */
- pci_write_config_dword(dev, SSB_BAR1_CONTROL, 3);
-
- /* Make sure our latency is high enough to handle the devices behind us */
- pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xa8);
-}
-DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ssb_fixup_pcibridge);
-
-int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
-{
- return ssb_mips_irq(extpci_core->dev) + 2;
-}
-
-static u32 get_cfgspace_addr(struct ssb_pcicore *pc,
- unsigned int bus, unsigned int dev,
- unsigned int func, unsigned int off)
-{
- u32 addr = 0;
- u32 tmp;
-
- if (unlikely(pc->cardbusmode && dev > 1))
- goto out;
- if (bus == 0) {//FIXME busnumber ok?
- /* Type 0 transaction */
- if (unlikely(dev >= SSB_PCI_SLOT_MAX))
- goto out;
- /* Slide the window */
- tmp = SSB_PCICORE_SBTOPCI_CFG0;
- tmp |= ((1 << (dev + 16)) & SSB_PCICORE_SBTOPCI1_MASK);
- pcicore_write32(pc, SSB_PCICORE_SBTOPCI1, tmp);
- /* Calculate the address */
- addr = SSB_PCI_CFG;
- addr |= ((1 << (dev + 16)) & ~SSB_PCICORE_SBTOPCI1_MASK);
- addr |= (func << 8);
- addr |= (off & ~3);
- } else {
- /* Type 1 transaction */
- pcicore_write32(pc, SSB_PCICORE_SBTOPCI1,
- SSB_PCICORE_SBTOPCI_CFG1);
- /* Calculate the address */
- addr = SSB_PCI_CFG;
- addr |= (bus << 16);
- addr |= (dev << 11);
- addr |= (func << 8);
- addr |= (off & ~3);
- }
-out:
- return addr;
-}
-
-static int ssb_extpci_read_config(struct ssb_pcicore *pc,
- unsigned int bus, unsigned int dev,
- unsigned int func, unsigned int off,
- void *buf, int len)
-{
- int err = -EINVAL;
- u32 addr, val;
- void __iomem *mmio;
-
- assert(pc->hostmode);
- if (unlikely(len != 1 && len != 2 && len != 4))
- goto out;
- addr = get_cfgspace_addr(pc, bus, dev, func, off);
- if (unlikely(!addr))
- goto out;
- err = -ENOMEM;
- mmio = ioremap_nocache(addr, len);
- if (!mmio)
- goto out;
-
- if (mips_busprobe(val, (u32 *) mmio)) {
- val = 0xffffffff;
- goto unmap;
- }
-
- val >>= (8 * (off & 3));
-
- switch (len) {
- case 1:
- *((u8 *)buf) = (u8)val;
- break;
- case 2:
- *((u16 *)buf) = (u16)val;
- break;
- case 4:
- *((u32 *)buf) = (u32)val;
- break;
- }
- err = 0;
-unmap:
- iounmap(mmio);
-out:
- return err;
-}
-
-static int ssb_extpci_write_config(struct ssb_pcicore *pc,
- unsigned int bus, unsigned int dev,
- unsigned int func, unsigned int off,
- const void *buf, int len)
-{
- int err = -EINVAL;
- u32 addr, val = 0;
- void __iomem *mmio;
-
- assert(pc->hostmode);
- if (unlikely(len != 1 && len != 2 && len != 4))
- goto out;
- addr = get_cfgspace_addr(pc, bus, dev, func, off);
- if (unlikely(!addr))
- goto out;
- err = -ENOMEM;
- mmio = ioremap_nocache(addr, len);
- if (!mmio)
- goto out;
-
- if (mips_busprobe(val, (u32 *) mmio)) {
- val = 0xffffffff;
- goto unmap;
- }
-
- switch (len) {
- case 1:
- val &= ~(0xFF << (8 * (off & 3)));
- val |= *((const u8 *)buf) << (8 * (off & 3));
- break;
- case 2:
- val &= ~(0xFFFF << (8 * (off & 3)));
- val |= *((const u16 *)buf) << (8 * (off & 3));
- break;
- case 4:
- val = *((const u32 *)buf);
- break;
- }
- writel(val, mmio);
-
- err = 0;
-unmap:
- iounmap(mmio);
-out:
- return err;
-}
-
-static int ssb_pcicore_read_config(struct pci_bus *bus, unsigned int devfn,
- int reg, int size, u32 *val)
-{
- unsigned long flags;
- int err;
-
- spin_lock_irqsave(&cfgspace_lock, flags);
- err = ssb_extpci_read_config(extpci_core, bus->number, PCI_SLOT(devfn),
- PCI_FUNC(devfn), reg, val, size);
- spin_unlock_irqrestore(&cfgspace_lock, flags);
-
- return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
-}
-
-static int ssb_pcicore_write_config(struct pci_bus *bus, unsigned int devfn,
- int reg, int size, u32 val)
-{
- unsigned long flags;
- int err;
-
- spin_lock_irqsave(&cfgspace_lock, flags);
- err = ssb_extpci_write_config(extpci_core, bus->number, PCI_SLOT(devfn),
- PCI_FUNC(devfn), reg, &val, size);
- spin_unlock_irqrestore(&cfgspace_lock, flags);
-
- return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops ssb_pcicore_pciops = {
- .read = ssb_pcicore_read_config,
- .write = ssb_pcicore_write_config,
-};
-
-static struct resource ssb_pcicore_mem_resource = {
- .name = "SSB PCIcore external memory",
- .start = SSB_PCI_DMA,
- .end = (u32)SSB_PCI_DMA + (u32)SSB_PCI_DMA_SZ - 1,
- .flags = IORESOURCE_MEM,
-};
-
-static struct resource ssb_pcicore_io_resource = {
- .name = "SSB PCIcore external I/O",
- .start = 0x100,
- .end = 0x7FF,
- .flags = IORESOURCE_IO,
-};
-
-static struct pci_controller ssb_pcicore_controller = {
- .pci_ops = &ssb_pcicore_pciops,
- .io_resource = &ssb_pcicore_io_resource,
- .mem_resource = &ssb_pcicore_mem_resource,
- .mem_offset = 0x24000000,
-};
-
-static void ssb_pcicore_init_hostmode(struct ssb_pcicore *pc)
-{
- u32 val;
-
- assert(!extpci_core);
- extpci_core = pc;
-
- ssb_dprintk(KERN_INFO PFX "PCIcore in host mode found\n");
- /* Reset devices on the external PCI bus */
- val = SSB_PCICORE_CTL_RST_OE;
- val |= SSB_PCICORE_CTL_CLK_OE;
- pcicore_write32(pc, SSB_PCICORE_CTL, val);
- val |= SSB_PCICORE_CTL_CLK; /* Clock on */
- pcicore_write32(pc, SSB_PCICORE_CTL, val);
- udelay(150);
- val |= SSB_PCICORE_CTL_RST; /* Deassert RST# */
- pcicore_write32(pc, SSB_PCICORE_CTL, val);
- val = SSB_PCICORE_ARBCTL_INTERN;
- pcicore_write32(pc, SSB_PCICORE_ARBCTL, val);
- udelay(1);
-
- //TODO cardbus mode
-
- /* 64MB I/O window */
- pcicore_write32(pc, SSB_PCICORE_SBTOPCI0,
- SSB_PCICORE_SBTOPCI_IO);
- /* 64MB config space */
- pcicore_write32(pc, SSB_PCICORE_SBTOPCI1,
- SSB_PCICORE_SBTOPCI_CFG0);
- /* 1GB memory window */
- pcicore_write32(pc, SSB_PCICORE_SBTOPCI2,
- SSB_PCICORE_SBTOPCI_MEM | SSB_PCI_DMA);
-
- /* Enable PCI bridge BAR0 prefetch and burst */
- val = PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
- ssb_extpci_write_config(pc, 0, 0, 0, PCI_COMMAND, &val, 4);
-
- /* Enable PCI interrupts */
- pcicore_write32(pc, SSB_PCICORE_IMASK,
- SSB_PCICORE_IMASK_INTA);
-
- /* Ok, ready to run, register it to the system.
- * The following needs change, if we want to port hostmode
- * to non-MIPS platform. */
- set_io_port_base((unsigned long)ioremap_nocache(SSB_PCI_MEM, 0x04000000));
- mdelay(300);
- register_pci_controller(&ssb_pcicore_controller);
-}
-
-static int pcicore_is_in_hostmode(struct ssb_pcicore *pc)
-{
- struct ssb_bus *bus = pc->dev->bus;
- u16 chipid_top;
- u32 tmp;
-
- chipid_top = (bus->chip_id & 0xFF00);
- if (chipid_top != 0x4700 &&
- chipid_top != 0x5300)
- return 0;
-
- if (bus->sprom.r1.boardflags_lo & SSB_PCICORE_BFL_NOPCI)
- return 0;
-
- /* The 200-pin BCM4712 package does not bond out PCI. Even when
- * PCI is bonded out, some boards may leave the pins floating. */
- if (bus->chip_id == 0x4712) {
- if (bus->chip_package == SSB_CHIPPACK_BCM4712S)
- return 0;
- if (bus->chip_package == SSB_CHIPPACK_BCM4712M)
- return 0;
- }
- if (bus->chip_id == 0x5350)
- return 0;
-
- return !mips_busprobe(tmp, (u32 *) (bus->mmio + (pc->dev->core_index * SSB_CORE_SIZE)));
-}
-#endif /* CONFIG_SSB_PCICORE_HOSTMODE */
-
-
-/**************************************************
- * Generic and Clientmode operation code.
- **************************************************/
-
-static void ssb_pcicore_init_clientmode(struct ssb_pcicore *pc)
-{
- /* Disable PCI interrupts. */
- ssb_write32(pc->dev, SSB_INTVEC, 0);
-}
-
-void ssb_pcicore_init(struct ssb_pcicore *pc)
-{
- struct ssb_device *dev = pc->dev;
- struct ssb_bus *bus;
-
- if (!dev)
- return;
- bus = dev->bus;
- ssb_device_enable(dev, 0);
-
-#ifdef CONFIG_SSB_PCICORE_HOSTMODE
- pc->hostmode = pcicore_is_in_hostmode(pc);
- if (pc->hostmode)
- ssb_pcicore_init_hostmode(pc);
-#endif /* CONFIG_SSB_PCICORE_HOSTMODE */
- if (!pc->hostmode)
- ssb_pcicore_init_clientmode(pc);
-}
-
-static u32 ssb_pcie_read(struct ssb_pcicore *pc, u32 address)
-{
- pcicore_write32(pc, 0x130, address);
- return pcicore_read32(pc, 0x134);
-}
-
-static void ssb_pcie_write(struct ssb_pcicore *pc, u32 address, u32 data)
-{
- pcicore_write32(pc, 0x130, address);
- pcicore_write32(pc, 0x134, data);
-}
-
-static void ssb_pcie_mdio_write(struct ssb_pcicore *pc, u8 device,
- u8 address, u16 data)
-{
- const u16 mdio_control = 0x128;
- const u16 mdio_data = 0x12C;
- u32 v;
- int i;
-
- v = 0x80; /* Enable Preamble Sequence */
- v |= 0x2; /* MDIO Clock Divisor */
- pcicore_write32(pc, mdio_control, v);
-
- v = (1 << 30); /* Start of Transaction */
- v |= (1 << 28); /* Write Transaction */
- v |= (1 << 17); /* Turnaround */
- v |= (u32)device << 22;
- v |= (u32)address << 18;
- v |= data;
- pcicore_write32(pc, mdio_data, v);
- udelay(10);
- for (i = 0; i < 10; i++) {
- v = pcicore_read32(pc, mdio_control);
- if (v & 0x100 /* Trans complete */)
- break;
- msleep(1);
- }
- pcicore_write32(pc, mdio_control, 0);
-}
-
-static void ssb_broadcast_value(struct ssb_device *dev,
- u32 address, u32 data)
-{
- /* This is used for both, PCI and ChipCommon core, so be careful. */
- BUILD_BUG_ON(SSB_PCICORE_BCAST_ADDR != SSB_CHIPCO_BCAST_ADDR);
- BUILD_BUG_ON(SSB_PCICORE_BCAST_DATA != SSB_CHIPCO_BCAST_DATA);
-
- ssb_write32(dev, SSB_PCICORE_BCAST_ADDR, address);
- ssb_read32(dev, SSB_PCICORE_BCAST_ADDR); /* flush */
- ssb_write32(dev, SSB_PCICORE_BCAST_DATA, data);
- ssb_read32(dev, SSB_PCICORE_BCAST_DATA); /* flush */
-}
-
-static void ssb_commit_settings(struct ssb_bus *bus)
-{
- struct ssb_device *dev;
-
- dev = bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev;
- assert(dev);
- /* This forces an update of the cached registers. */
- ssb_broadcast_value(dev, 0xFD8, 0);
-}
-
-int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc,
- struct ssb_device *dev)
-{
- struct ssb_device *pdev = pc->dev;
- struct ssb_bus *bus;
- int err = 0;
- u32 tmp;
-
- might_sleep();
-
- if (!pdev)
- goto out;
- bus = pdev->bus;
-
- /* Enable interrupts for this device. */
- if (bus->host_pci &&
- ((pdev->id.revision >= 6) || (pdev->id.coreid == SSB_DEV_PCIE))) {
- u32 coremask;
-
- /* Calculate the "coremask" for the device. */
- coremask = (1 << dev->core_index);
-
- err = pci_read_config_dword(bus->host_pci, SSB_PCI_IRQMASK, &tmp);
- if (err)
- goto out;
- tmp |= coremask << 8;
- err = pci_write_config_dword(bus->host_pci, SSB_PCI_IRQMASK, tmp);
- if (err)
- goto out;
- } else {
- u32 intvec;
-
- intvec = ssb_read32(pdev, SSB_INTVEC);
- tmp = ssb_read32(dev, SSB_TPSFLAG);
- tmp &= SSB_TPSFLAG_BPFLAG;
- intvec |= tmp;
- ssb_write32(pdev, SSB_INTVEC, intvec);
- }
-
- /* Setup PCIcore operation. */
- if (pc->setup_done)
- goto out;
- if (pdev->id.coreid == SSB_DEV_PCI) {
- tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2);
- tmp |= SSB_PCICORE_SBTOPCI_PREF;
- tmp |= SSB_PCICORE_SBTOPCI_BURST;
- pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp);
-
- if (pdev->id.revision < 5) {
- tmp = ssb_read32(pdev, SSB_IMCFGLO);
- tmp &= ~SSB_IMCFGLO_SERTO;
- tmp |= 2;
- tmp &= ~SSB_IMCFGLO_REQTO;
- tmp |= 3 << SSB_IMCFGLO_REQTO_SHIFT;
- ssb_write32(pdev, SSB_IMCFGLO, tmp);
- ssb_commit_settings(bus);
- } else if (pdev->id.revision >= 11) {
- tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2);
- tmp |= SSB_PCICORE_SBTOPCI_MRM;
- pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp);
- }
- } else {
- assert(pdev->id.coreid == SSB_DEV_PCIE);
- //TODO: Better make defines for all these magic PCIE values.
- if ((pdev->id.revision == 0) || (pdev->id.revision == 1)) {
- /* TLP Workaround register. */
- tmp = ssb_pcie_read(pc, 0x4);
- tmp |= 0x8;
- ssb_pcie_write(pc, 0x4, tmp);
- }
- if (pdev->id.revision == 0) {
- const u8 serdes_rx_device = 0x1F;
-
- ssb_pcie_mdio_write(pc, serdes_rx_device,
- 2 /* Timer */, 0x8128);
- ssb_pcie_mdio_write(pc, serdes_rx_device,
- 6 /* CDR */, 0x0100);
- ssb_pcie_mdio_write(pc, serdes_rx_device,
- 7 /* CDR BW */, 0x1466);
- } else if (pdev->id.revision == 1) {
- /* DLLP Link Control register. */
- tmp = ssb_pcie_read(pc, 0x100);
- tmp |= 0x40;
- ssb_pcie_write(pc, 0x100, tmp);
- }
- }
- pc->setup_done = 1;
-out:
- return err;
-}
-EXPORT_SYMBOL(ssb_pcicore_dev_irqvecs_enable);
--- /dev/null
+/*
+ * Sonics Silicon Backplane
+ * Broadcom PCI-core driver
+ *
+ * Copyright 2005, Broadcom Corporation
+ * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+
+#include "ssb_private.h"
+
+
+static inline
+u32 pcicore_read32(struct ssb_pcicore *pc, u16 offset)
+{
+ return ssb_read32(pc->dev, offset);
+}
+
+static inline
+void pcicore_write32(struct ssb_pcicore *pc, u16 offset, u32 value)
+{
+ ssb_write32(pc->dev, offset, value);
+}
+
+/**************************************************
+ * Code for hostmode operation.
+ **************************************************/
+
+#ifdef CONFIG_SSB_PCICORE_HOSTMODE
+
+#include <asm/paccess.h>
+/* Read the bus and catch bus exceptions. This is MIPS specific. */
+#define mips_busprobe(val, addr) get_dbe((val), (addr))
+
+/* Assume one-hot slot wiring */
+#define SSB_PCI_SLOT_MAX 16
+
+/* Global lock is OK, as we won't have more than one extpci anyway. */
+static DEFINE_SPINLOCK(cfgspace_lock);
+/* Core to access the external PCI config space. Can only have one. */
+static struct ssb_pcicore *extpci_core;
+
+u32 pci_iobase = 0x100;
+u32 pci_membase = SSB_PCI_DMA;
+
+int pcibios_plat_dev_init(struct pci_dev *d)
+{
+ struct resource *res;
+ int pos, size;
+ u32 *base;
+
+ printk("PCI: Fixing up device %s\n", pci_name(d));
+
+ /* Fix up resource bases */
+ for (pos = 0; pos < 6; pos++) {
+ res = &d->resource[pos];
+ base = ((res->flags & IORESOURCE_IO) ? &pci_iobase : &pci_membase);
+ if (res->end) {
+ size = res->end - res->start + 1;
+ if (*base & (size - 1))
+ *base = (*base + size) & ~(size - 1);
+ res->start = *base;
+ res->end = res->start + size - 1;
+ *base += size;
+ pci_write_config_dword(d, PCI_BASE_ADDRESS_0 + (pos << 2), res->start);
+ }
+ /* Fix up PCI bridge BAR0 only */
+ if (d->bus->number == 0 && PCI_SLOT(d->devfn) == 0)
+ break;
+ }
+ /* Fix up interrupt lines */
+ d->irq = ssb_mips_irq(extpci_core->dev) + 2;
+ pci_write_config_byte(d, PCI_INTERRUPT_LINE, d->irq);
+
+ return 0;
+}
+
+static void __init ssb_fixup_pcibridge(struct pci_dev *dev)
+{
+ if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) != 0)
+ return;
+
+ printk("PCI: fixing up bridge\n");
+
+ /* Enable PCI bridge bus mastering and memory space */
+ pci_set_master(dev);
+ pcibios_enable_device(dev, ~0);
+
+ /* Enable PCI bridge BAR1 prefetch and burst */
+ pci_write_config_dword(dev, SSB_BAR1_CONTROL, 3);
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ssb_fixup_pcibridge);
+
+int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ return ssb_mips_irq(extpci_core->dev) + 2;
+}
+
+static u32 get_cfgspace_addr(struct ssb_pcicore *pc,
+ unsigned int bus, unsigned int dev,
+ unsigned int func, unsigned int off)
+{
+ u32 addr = 0;
+ u32 tmp;
+
+ if (unlikely(pc->cardbusmode && dev > 1))
+ goto out;
+ if (bus == 0) {
+ /* Type 0 transaction */
+ if (unlikely(dev >= SSB_PCI_SLOT_MAX))
+ goto out;
+ /* Slide the window */
+ tmp = SSB_PCICORE_SBTOPCI_CFG0;
+ tmp |= ((1 << (dev + 16)) & SSB_PCICORE_SBTOPCI1_MASK);
+ pcicore_write32(pc, SSB_PCICORE_SBTOPCI1, tmp);
+ /* Calculate the address */
+ addr = SSB_PCI_CFG;
+ addr |= ((1 << (dev + 16)) & ~SSB_PCICORE_SBTOPCI1_MASK);
+ addr |= (func << 8);
+ addr |= (off & ~3);
+ } else {
+ /* Type 1 transaction */
+ pcicore_write32(pc, SSB_PCICORE_SBTOPCI1,
+ SSB_PCICORE_SBTOPCI_CFG1);
+ /* Calculate the address */
+ addr = SSB_PCI_CFG;
+ addr |= (bus << 16);
+ addr |= (dev << 11);
+ addr |= (func << 8);
+ addr |= (off & ~3);
+ }
+out:
+ return addr;
+}
+
+static int ssb_extpci_read_config(struct ssb_pcicore *pc,
+ unsigned int bus, unsigned int dev,
+ unsigned int func, unsigned int off,
+ void *buf, int len)
+{
+ int err = -EINVAL;
+ u32 addr, val;
+ void __iomem *mmio;
+
+ assert(pc->hostmode);
+ if (unlikely(len != 1 && len != 2 && len != 4))
+ goto out;
+ addr = get_cfgspace_addr(pc, bus, dev, func, off);
+ if (unlikely(!addr))
+ goto out;
+ err = -ENOMEM;
+ mmio = ioremap_nocache(addr, len);
+ if (!mmio)
+ goto out;
+
+ if (mips_busprobe(val, (u32 *) mmio)) {
+ val = 0xffffffff;
+ goto unmap;
+ }
+
+ val = readl(mmio);
+ val >>= (8 * (off & 3));
+
+ switch (len) {
+ case 1:
+ *((u8 *)buf) = (u8)val;
+ break;
+ case 2:
+ *((u16 *)buf) = (u16)val;
+ break;
+ case 4:
+ *((u32 *)buf) = (u32)val;
+ break;
+ }
+ err = 0;
+unmap:
+ iounmap(mmio);
+out:
+ return err;
+}
+
+static int ssb_extpci_write_config(struct ssb_pcicore *pc,
+ unsigned int bus, unsigned int dev,
+ unsigned int func, unsigned int off,
+ const void *buf, int len)
+{
+ int err = -EINVAL;
+ u32 addr, val = 0;
+ void __iomem *mmio;
+
+ assert(pc->hostmode);
+ if (unlikely(len != 1 && len != 2 && len != 4))
+ goto out;
+ addr = get_cfgspace_addr(pc, bus, dev, func, off);
+ if (unlikely(!addr))
+ goto out;
+ err = -ENOMEM;
+ mmio = ioremap_nocache(addr, len);
+ if (!mmio)
+ goto out;
+
+ if (mips_busprobe(val, (u32 *) mmio)) {
+ val = 0xffffffff;
+ goto unmap;
+ }
+
+ switch (len) {
+ case 1:
+ val = readl(mmio);
+ val &= ~(0xFF << (8 * (off & 3)));
+ val |= *((const u8 *)buf) << (8 * (off & 3));
+ break;
+ case 2:
+ val = readl(mmio);
+ val &= ~(0xFFFF << (8 * (off & 3)));
+ val |= *((const u16 *)buf) << (8 * (off & 3));
+ break;
+ case 4:
+ val = *((const u32 *)buf);
+ break;
+ }
+ writel(*((const u32 *)buf), mmio);
+
+ err = 0;
+unmap:
+ iounmap(mmio);
+out:
+ return err;
+}
+
+static int ssb_pcicore_read_config(struct pci_bus *bus, unsigned int devfn,
+ int reg, int size, u32 *val)
+{
+ unsigned long flags;
+ int err;
+
+ spin_lock_irqsave(&cfgspace_lock, flags);
+ err = ssb_extpci_read_config(extpci_core, bus->number, PCI_SLOT(devfn),
+ PCI_FUNC(devfn), reg, val, size);
+ spin_unlock_irqrestore(&cfgspace_lock, flags);
+
+ return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+}
+
+static int ssb_pcicore_write_config(struct pci_bus *bus, unsigned int devfn,
+ int reg, int size, u32 val)
+{
+ unsigned long flags;
+ int err;
+
+ spin_lock_irqsave(&cfgspace_lock, flags);
+ err = ssb_extpci_write_config(extpci_core, bus->number, PCI_SLOT(devfn),
+ PCI_FUNC(devfn), reg, &val, size);
+ spin_unlock_irqrestore(&cfgspace_lock, flags);
+
+ return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops ssb_pcicore_pciops = {
+ .read = ssb_pcicore_read_config,
+ .write = ssb_pcicore_write_config,
+};
+
+static struct resource ssb_pcicore_mem_resource = {
+ .name = "SSB PCIcore external memory",
+ .start = SSB_PCI_DMA,
+ .end = (u32)SSB_PCI_DMA + (u32)SSB_PCI_DMA_SZ - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct resource ssb_pcicore_io_resource = {
+ .name = "SSB PCIcore external I/O",
+ .start = 0x100,
+ .end = 0x7FF,
+ .flags = IORESOURCE_IO,
+};
+
+static struct pci_controller ssb_pcicore_controller = {
+ .pci_ops = &ssb_pcicore_pciops,
+ .io_resource = &ssb_pcicore_io_resource,
+ .mem_resource = &ssb_pcicore_mem_resource,
+ .mem_offset = 0x24000000,
+};
+
+static void ssb_pcicore_init_hostmode(struct ssb_pcicore *pc)
+{
+ u32 val;
+
+ if (extpci_core) {
+ WARN_ON(1);
+ return;
+ }
+ extpci_core = pc;
+
+ ssb_dprintk(KERN_INFO PFX "PCIcore in host mode found\n");
+ /* Reset devices on the external PCI bus */
+ val = SSB_PCICORE_CTL_RST_OE;
+ val |= SSB_PCICORE_CTL_CLK_OE;
+ pcicore_write32(pc, SSB_PCICORE_CTL, val);
+ val |= SSB_PCICORE_CTL_CLK; /* Clock on */
+ pcicore_write32(pc, SSB_PCICORE_CTL, val);
+ udelay(150);
+ val |= SSB_PCICORE_CTL_RST; /* Deassert RST# */
+ pcicore_write32(pc, SSB_PCICORE_CTL, val);
+ udelay(1);
+
+ //TODO cardbus mode
+
+ /* 64MB I/O window */
+ pcicore_write32(pc, SSB_PCICORE_SBTOPCI0,
+ SSB_PCICORE_SBTOPCI_IO);
+ /* 64MB config space */
+ pcicore_write32(pc, SSB_PCICORE_SBTOPCI1,
+ SSB_PCICORE_SBTOPCI_CFG0);
+ /* 1GB memory window */
+ pcicore_write32(pc, SSB_PCICORE_SBTOPCI2,
+ SSB_PCICORE_SBTOPCI_MEM | SSB_PCI_DMA);
+
+ /* Enable PCI bridge BAR0 prefetch and burst */
+ val = PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+ ssb_extpci_write_config(pc, 0, 0, 0, PCI_COMMAND, &val, 2);
+ /* Clear error conditions */
+ val = 0;
+ ssb_extpci_write_config(pc, 0, 0, 0, PCI_STATUS, &val, 2);
+
+ /* Enable PCI interrupts */
+ pcicore_write32(pc, SSB_PCICORE_IMASK,
+ SSB_PCICORE_IMASK_INTA);
+
+ /* Ok, ready to run, register it to the system.
+ * The following needs change, if we want to port hostmode
+ * to non-MIPS platform. */
+ set_io_port_base((unsigned long)ioremap_nocache(SSB_PCI_MEM, 0x04000000));
+ register_pci_controller(&ssb_pcicore_controller);
+}
+
+static int pcicore_is_in_hostmode(struct ssb_pcicore *pc)
+{
+ struct ssb_bus *bus = pc->dev->bus;
+ u16 chipid_top;
+ u32 tmp;
+
+ chipid_top = (bus->chip_id & 0xFF00);
+ if (chipid_top != 0x4700 &&
+ chipid_top != 0x5300)
+ return 0;
+
+ if (bus->sprom.r1.boardflags_lo & SSB_PCICORE_BFL_NOPCI)
+ return 0;
+
+ /* The 200-pin BCM4712 package does not bond out PCI. Even when
+ * PCI is bonded out, some boards may leave the pins floating. */
+ if (bus->chip_id == 0x4712) {
+ if (bus->chip_package == SSB_CHIPPACK_BCM4712S)
+ return 0;
+ if (bus->chip_package == SSB_CHIPPACK_BCM4712M)
+ return 0;
+ }
+ if (bus->chip_id == 0x5350)
+ return 0;
+
+ return !mips_busprobe(tmp, (u32 *) (bus->mmio + (pc->dev->core_index * SSB_CORE_SIZE)));
+}
+#endif /* CONFIG_SSB_PCICORE_HOSTMODE */
+
+
+/**************************************************
+ * Generic and Clientmode operation code.
+ **************************************************/
+
+static void ssb_pcicore_init_clientmode(struct ssb_pcicore *pc)
+{
+ /* Disable PCI interrupts. */
+ ssb_write32(pc->dev, SSB_INTVEC, 0);
+}
+
+void ssb_pcicore_init(struct ssb_pcicore *pc)
+{
+ struct ssb_device *dev = pc->dev;
+ struct ssb_bus *bus;
+
+ if (!dev)
+ return;
+ bus = dev->bus;
+ if (!ssb_device_is_enabled(dev))
+ ssb_device_enable(dev, 0);
+
+#ifdef CONFIG_SSB_PCICORE_HOSTMODE
+ pc->hostmode = pcicore_is_in_hostmode(pc);
+ if (pc->hostmode)
+ ssb_pcicore_init_hostmode(pc);
+#endif /* CONFIG_SSB_PCICORE_HOSTMODE */
+ if (!pc->hostmode)
+ ssb_pcicore_init_clientmode(pc);
+}
+
+static u32 ssb_pcie_read(struct ssb_pcicore *pc, u32 address)
+{
+ pcicore_write32(pc, 0x130, address);
+ return pcicore_read32(pc, 0x134);
+}
+
+static void ssb_pcie_write(struct ssb_pcicore *pc, u32 address, u32 data)
+{
+ pcicore_write32(pc, 0x130, address);
+ pcicore_write32(pc, 0x134, data);
+}
+
+static void ssb_pcie_mdio_write(struct ssb_pcicore *pc, u8 device,
+ u8 address, u16 data)
+{
+ const u16 mdio_control = 0x128;
+ const u16 mdio_data = 0x12C;
+ u32 v;
+ int i;
+
+ v = 0x80; /* Enable Preamble Sequence */
+ v |= 0x2; /* MDIO Clock Divisor */
+ pcicore_write32(pc, mdio_control, v);
+
+ v = (1 << 30); /* Start of Transaction */
+ v |= (1 << 28); /* Write Transaction */
+ v |= (1 << 17); /* Turnaround */
+ v |= (u32)device << 22;
+ v |= (u32)address << 18;
+ v |= data;
+ pcicore_write32(pc, mdio_data, v);
+ udelay(10);
+ for (i = 0; i < 10; i++) {
+ v = pcicore_read32(pc, mdio_control);
+ if (v & 0x100 /* Trans complete */)
+ break;
+ msleep(1);
+ }
+ pcicore_write32(pc, mdio_control, 0);
+}
+
+static void ssb_broadcast_value(struct ssb_device *dev,
+ u32 address, u32 data)
+{
+ /* This is used for both, PCI and ChipCommon core, so be careful. */
+ BUILD_BUG_ON(SSB_PCICORE_BCAST_ADDR != SSB_CHIPCO_BCAST_ADDR);
+ BUILD_BUG_ON(SSB_PCICORE_BCAST_DATA != SSB_CHIPCO_BCAST_DATA);
+
+ ssb_write32(dev, SSB_PCICORE_BCAST_ADDR, address);
+ ssb_read32(dev, SSB_PCICORE_BCAST_ADDR); /* flush */
+ ssb_write32(dev, SSB_PCICORE_BCAST_DATA, data);
+ ssb_read32(dev, SSB_PCICORE_BCAST_DATA); /* flush */
+}
+
+static void ssb_commit_settings(struct ssb_bus *bus)
+{
+ struct ssb_device *dev;
+
+ dev = bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev;
+ assert(dev);
+ /* This forces an update of the cached registers. */
+ ssb_broadcast_value(dev, 0xFD8, 0);
+}
+
+int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc,
+ struct ssb_device *dev)
+{
+ struct ssb_device *pdev = pc->dev;
+ struct ssb_bus *bus;
+ int err = 0;
+ u32 tmp;
+
+ might_sleep();
+
+ if (!pdev)
+ goto out;
+ bus = pdev->bus;
+
+ /* Enable interrupts for this device. */
+ if (bus->host_pci &&
+ ((pdev->id.revision >= 6) || (pdev->id.coreid == SSB_DEV_PCIE))) {
+ u32 coremask;
+
+ /* Calculate the "coremask" for the device. */
+ coremask = (1 << dev->core_index);
+
+ err = pci_read_config_dword(bus->host_pci, SSB_PCI_IRQMASK, &tmp);
+ if (err)
+ goto out;
+ tmp |= coremask << 8;
+ err = pci_write_config_dword(bus->host_pci, SSB_PCI_IRQMASK, tmp);
+ if (err)
+ goto out;
+ } else {
+ u32 intvec;
+
+ intvec = ssb_read32(pdev, SSB_INTVEC);
+ tmp = ssb_read32(dev, SSB_TPSFLAG);
+ tmp &= SSB_TPSFLAG_BPFLAG;
+ intvec |= tmp;
+ ssb_write32(pdev, SSB_INTVEC, intvec);
+ }
+
+ /* Setup PCIcore operation. */
+ if (pc->setup_done)
+ goto out;
+ if (pdev->id.coreid == SSB_DEV_PCI) {
+ tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2);
+ tmp |= SSB_PCICORE_SBTOPCI_PREF;
+ tmp |= SSB_PCICORE_SBTOPCI_BURST;
+ pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp);
+
+ if (pdev->id.revision < 5) {
+ tmp = ssb_read32(pdev, SSB_IMCFGLO);
+ tmp &= ~SSB_IMCFGLO_SERTO;
+ tmp |= 2;
+ tmp &= ~SSB_IMCFGLO_REQTO;
+ tmp |= 3 << SSB_IMCFGLO_REQTO_SHIFT;
+ ssb_write32(pdev, SSB_IMCFGLO, tmp);
+ ssb_commit_settings(bus);
+ } else if (pdev->id.revision >= 11) {
+ tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2);
+ tmp |= SSB_PCICORE_SBTOPCI_MRM;
+ pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp);
+ }
+ } else {
+ assert(pdev->id.coreid == SSB_DEV_PCIE);
+ //TODO: Better make defines for all these magic PCIE values.
+ if ((pdev->id.revision == 0) || (pdev->id.revision == 1)) {
+ /* TLP Workaround register. */
+ tmp = ssb_pcie_read(pc, 0x4);
+ tmp |= 0x8;
+ ssb_pcie_write(pc, 0x4, tmp);
+ }
+ if (pdev->id.revision == 0) {
+ const u8 serdes_rx_device = 0x1F;
+
+ ssb_pcie_mdio_write(pc, serdes_rx_device,
+ 2 /* Timer */, 0x8128);
+ ssb_pcie_mdio_write(pc, serdes_rx_device,
+ 6 /* CDR */, 0x0100);
+ ssb_pcie_mdio_write(pc, serdes_rx_device,
+ 7 /* CDR BW */, 0x1466);
+ } else if (pdev->id.revision == 1) {
+ /* DLLP Link Control register. */
+ tmp = ssb_pcie_read(pc, 0x100);
+ tmp |= 0x40;
+ ssb_pcie_write(pc, 0x100, tmp);
+ }
+ }
+ pc->setup_done = 1;
+out:
+ return err;
+}
+EXPORT_SYMBOL(ssb_pcicore_dev_irqvecs_enable);
--- /dev/null
+/*
+ * Sonics Silicon Backplane
+ * Subsystem core
+ *
+ * Copyright 2005, Broadcom Corporation
+ * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "ssb_private.h"
+
+#include <linux/delay.h>
+#include <linux/ssb/ssb.h>
+#include <linux/ssb/ssb_regs.h>
+
+#ifdef CONFIG_SSB_PCIHOST
+# include <linux/pci.h>
+#endif
+
+#ifdef CONFIG_SSB_PCMCIAHOST
+# include <pcmcia/cs_types.h>
+# include <pcmcia/cs.h>
+# include <pcmcia/cistpl.h>
+# include <pcmcia/ds.h>
+#endif
+
+
+MODULE_DESCRIPTION("Sonics Silicon Backplane driver");
+MODULE_LICENSE("GPL");
+
+
+static LIST_HEAD(attach_queue);
+static LIST_HEAD(buses);
+static int nr_buses;
+static DEFINE_MUTEX(buses_mutex);
+
+static void ssb_buses_lock(void);
+static void ssb_buses_unlock(void);
+
+
+#ifdef CONFIG_SSB_PCIHOST
+struct ssb_bus * ssb_pci_dev_to_bus(struct pci_dev *pdev)
+{
+ struct ssb_bus *bus;
+
+ ssb_buses_lock();
+ list_for_each_entry(bus, &buses, list) {
+ if (bus->bustype == SSB_BUSTYPE_PCI &&
+ bus->host_pci == pdev)
+ goto found;
+ }
+ bus = NULL;
+found:
+ ssb_buses_unlock();
+
+ return bus;
+}
+#endif /* CONFIG_SSB_PCIHOST */
+
+static struct ssb_device * ssb_device_get(struct ssb_device *dev)
+{
+ if (dev)
+ get_device(dev->dev);
+ return dev;
+}
+
+static void ssb_device_put(struct ssb_device *dev)
+{
+ if (dev)
+ put_device(dev->dev);
+}
+
+static int ssb_bus_resume(struct ssb_bus *bus)
+{
+ int err;
+
+ ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1);
+ err = ssb_pcmcia_init(bus);
+ if (err) {
+ /* No need to disable XTAL, as we don't have one on PCMCIA. */
+ return err;
+ }
+ ssb_chipco_resume(&bus->chipco);
+
+ return 0;
+}
+
+static int ssb_device_resume(struct device *dev)
+{
+ struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
+ struct ssb_driver *ssb_drv;
+ struct ssb_bus *bus;
+ int err = 0;
+
+ bus = ssb_dev->bus;
+ if (bus->suspend_cnt == bus->nr_devices) {
+ err = ssb_bus_resume(bus);
+ if (err)
+ return err;
+ }
+ bus->suspend_cnt--;
+ if (dev->driver) {
+ ssb_drv = drv_to_ssb_drv(dev->driver);
+ if (ssb_drv && ssb_drv->resume)
+ err = ssb_drv->resume(ssb_dev);
+ if (err)
+ goto out;
+ }
+out:
+ return err;
+}
+
+static void ssb_bus_suspend(struct ssb_bus *bus, pm_message_t state)
+{
+ ssb_chipco_suspend(&bus->chipco, state);
+ ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0);
+
+ /* Reset HW state information in memory, so that HW is
+ * completely reinitialized on resume. */
+ bus->mapped_device = NULL;
+#ifdef CONFIG_SSB_DRIVER_PCICORE
+ bus->pcicore.setup_done = 0;
+#endif
+}
+
+static int ssb_device_suspend(struct device *dev, pm_message_t state)
+{
+ struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
+ struct ssb_driver *ssb_drv;
+ struct ssb_bus *bus;
+ int err = 0;
+
+ if (dev->driver) {
+ ssb_drv = drv_to_ssb_drv(dev->driver);
+ if (ssb_drv && ssb_drv->suspend)
+ err = ssb_drv->suspend(ssb_dev, state);
+ if (err)
+ goto out;
+ }
+
+ bus = ssb_dev->bus;
+ bus->suspend_cnt++;
+ if (bus->suspend_cnt == bus->nr_devices) {
+ /* All devices suspended. Shutdown the bus. */
+ ssb_bus_suspend(bus, state);
+ }
+
+out:
+ return err;
+}
+
+#ifdef CONFIG_SSB_PCIHOST
+int ssb_devices_freeze(struct ssb_bus *bus)
+{
+ struct ssb_device *dev;
+ struct ssb_driver *drv;
+ int err = 0;
+ int i;
+ pm_message_t state = PMSG_FREEZE;
+
+ for (i = 0; i < bus->nr_devices; i++) {
+ dev = &(bus->devices[i]);
+ if (!dev->dev->driver)
+ continue;
+ if (!device_is_registered(dev->dev))
+ continue;
+ drv = drv_to_ssb_drv(dev->dev->driver);
+ if (drv && drv->suspend) {
+ err = drv->suspend(dev, state);
+ if (err)
+ goto out;
+ }
+ }
+out:
+ return err;
+}
+
+int ssb_devices_thaw(struct ssb_bus *bus)
+{
+ struct ssb_device *dev;
+ struct ssb_driver *drv;
+ int err = 0;
+ int i;
+
+ for (i = 0; i < bus->nr_devices; i++) {
+ dev = &(bus->devices[i]);
+ if (!dev->dev->driver)
+ continue;
+ if (!device_is_registered(dev->dev))
+ continue;
+ drv = drv_to_ssb_drv(dev->dev->driver);
+ if (drv && drv->resume) {
+ err = drv->resume(dev);
+ if (err)
+ goto out;
+ }
+ }
+out:
+ return err;
+}
+#endif /* CONFIG_SSB_PCIHOST */
+
+static void ssb_device_shutdown(struct device *dev)
+{
+ struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
+ struct ssb_driver *ssb_drv;
+
+ if (!dev->driver)
+ return;
+ ssb_drv = drv_to_ssb_drv(dev->driver);
+ if (ssb_drv && ssb_drv->shutdown)
+ ssb_drv->shutdown(ssb_dev);
+}
+
+static int ssb_device_remove(struct device *dev)
+{
+ struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
+ struct ssb_driver *ssb_drv = drv_to_ssb_drv(dev->driver);
+
+ if (ssb_drv && ssb_drv->remove)
+ ssb_drv->remove(ssb_dev);
+ ssb_device_put(ssb_dev);
+
+ return 0;
+}
+
+static int ssb_device_probe(struct device *dev)
+{
+ struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
+ struct ssb_driver *ssb_drv = drv_to_ssb_drv(dev->driver);
+ int err = 0;
+
+ ssb_device_get(ssb_dev);
+ if (ssb_drv && ssb_drv->probe)
+ err = ssb_drv->probe(ssb_dev, &ssb_dev->id);
+ if (err)
+ ssb_device_put(ssb_dev);
+
+ return err;
+}
+
+static int ssb_match_devid(const struct ssb_device_id *tabid,
+ const struct ssb_device_id *devid)
+{
+ if ((tabid->vendor != devid->vendor) &&
+ tabid->vendor != SSB_ANY_VENDOR)
+ return 0;
+ if ((tabid->coreid != devid->coreid) &&
+ tabid->coreid != SSB_ANY_ID)
+ return 0;
+ if ((tabid->revision != devid->revision) &&
+ tabid->revision != SSB_ANY_REV)
+ return 0;
+ return 1;
+}
+
+static int ssb_bus_match(struct device *dev, struct device_driver *drv)
+{
+ struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
+ struct ssb_driver *ssb_drv = drv_to_ssb_drv(drv);
+ const struct ssb_device_id *id;
+
+ for (id = ssb_drv->id_table;
+ id->vendor || id->coreid || id->revision;
+ id++) {
+ if (ssb_match_devid(id, &ssb_dev->id))
+ return 1; /* found */
+ }
+
+ return 0;
+}
+
+static struct bus_type ssb_bustype = {
+ .name = NULL, /* Intentionally NULL to indicate early boot */
+ .match = ssb_bus_match,
+ .probe = ssb_device_probe,
+ .remove = ssb_device_remove,
+ .shutdown = ssb_device_shutdown,
+ .suspend = ssb_device_suspend,
+ .resume = ssb_device_resume,
+};
+
+#define is_early_boot() (ssb_bustype.name == NULL)
+
+static void ssb_buses_lock(void)
+{
+ if (!is_early_boot())
+ mutex_lock(&buses_mutex);
+}
+
+static void ssb_buses_unlock(void)
+{
+ if (!is_early_boot())
+ mutex_unlock(&buses_mutex);
+}
+
+static void ssb_devices_unregister(struct ssb_bus *bus)
+{
+ struct ssb_device *sdev;
+ int i;
+
+ for (i = bus->nr_devices - 1; i >= 0; i--) {
+ sdev = &(bus->devices[i]);
+ if (sdev->dev)
+ device_unregister(sdev->dev);
+ }
+}
+
+void ssb_bus_unregister(struct ssb_bus *bus)
+{
+ ssb_buses_lock();
+ ssb_devices_unregister(bus);
+ list_del(&bus->list);
+ ssb_buses_unlock();
+
+ /* ssb_pcmcia_exit(bus); */
+ ssb_pci_exit(bus);
+ ssb_iounmap(bus);
+}
+EXPORT_SYMBOL(ssb_bus_unregister);
+
+static void ssb_release_dev(struct device *dev)
+{
+ struct __ssb_dev_wrapper *devwrap;
+
+ devwrap = container_of(dev, struct __ssb_dev_wrapper, dev);
+ kfree(devwrap);
+}
+
+static int ssb_devices_register(struct ssb_bus *bus)
+{
+ struct ssb_device *sdev;
+ struct device *dev;
+ struct __ssb_dev_wrapper *devwrap;
+ int i, err = 0;
+ int dev_idx = 0;
+
+ for (i = 0; i < bus->nr_devices; i++) {
+ sdev = &(bus->devices[i]);
+
+ /* We don't register SSB-system devices to the kernel,
+ * as the drivers for them are built into SSB. */
+ switch (sdev->id.coreid) {
+ case SSB_DEV_CHIPCOMMON:
+ case SSB_DEV_PCI:
+ case SSB_DEV_PCIE:
+ case SSB_DEV_PCMCIA:
+ case SSB_DEV_MIPS:
+ case SSB_DEV_MIPS_3302:
+ case SSB_DEV_EXTIF:
+ continue;
+ }
+
+ devwrap = kzalloc(sizeof(*devwrap), GFP_KERNEL);
+ if (!devwrap) {
+ ssb_printk(KERN_ERR PFX
+ "Could not allocate device\n");
+ err = -ENOMEM;
+ goto error;
+ }
+ dev = &devwrap->dev;
+ devwrap->sdev = sdev;
+
+ dev->release = ssb_release_dev;
+ dev->bus = &ssb_bustype;
+ snprintf(dev->bus_id, sizeof(dev->bus_id),
+ "ssb%d:%d", bus->busnumber, dev_idx);
+
+ switch (bus->bustype) {
+ case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
+ sdev->irq = bus->host_pci->irq;
+ dev->parent = &bus->host_pci->dev;
+#endif
+ break;
+ case SSB_BUSTYPE_PCMCIA:
+#ifdef CONFIG_SSB_PCMCIAHOST
+ dev->parent = &bus->host_pcmcia->dev;
+#endif
+ break;
+ case SSB_BUSTYPE_SSB:
+ break;
+ }
+
+ sdev->dev = dev;
+ err = device_register(dev);
+ if (err) {
+ ssb_printk(KERN_ERR PFX
+ "Could not register %s\n",
+ dev->bus_id);
+ /* Set dev to NULL to not unregister
+ * dev on error unwinding. */
+ sdev->dev = NULL;
+ kfree(devwrap);
+ goto error;
+ }
+ dev_idx++;
+ }
+
+ return 0;
+error:
+ /* Unwind the already registered devices. */
+ ssb_devices_unregister(bus);
+ return err;
+}
+
+/* Needs ssb_buses_lock() */
+static int ssb_attach_queued_buses(void)
+{
+ struct ssb_bus *bus, *n;
+ int err = 0;
+ int drop_them_all = 0;
+
+ list_for_each_entry_safe(bus, n, &attach_queue, list) {
+ if (drop_them_all) {
+ list_del(&bus->list);
+ continue;
+ }
+ /* Can't init the PCIcore in ssb_bus_register(), as that
+ * is too early in boot for embedded systems
+ * (no udelay() available). So do it here in attach stage.
+ */
+ ssb_pcicore_init(&bus->pcicore);
+
+ err = ssb_devices_register(bus);
+ if (err) {
+ drop_them_all = 1;
+ list_del(&bus->list);
+ continue;
+ }
+ list_move_tail(&bus->list, &buses);
+ }
+
+ return err;
+}
+
+static void ssb_get_boardtype(struct ssb_bus *bus)
+{//FIXME for pcmcia?
+ if (bus->bustype != SSB_BUSTYPE_PCI) {
+ /* Must set board_vendor, board_type and board_rev
+ * before calling ssb_bus_*_register() */
+ assert(bus->board_vendor && bus->board_type);
+ return;
+ }
+ ssb_pci_get_boardtype(bus);
+}
+
+static u16 ssb_ssb_read16(struct ssb_device *dev, u16 offset)
+{
+ struct ssb_bus *bus = dev->bus;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ return readw(bus->mmio + offset);
+}
+
+static u32 ssb_ssb_read32(struct ssb_device *dev, u16 offset)
+{
+ struct ssb_bus *bus = dev->bus;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ return readl(bus->mmio + offset);
+}
+
+static void ssb_ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
+{
+ struct ssb_bus *bus = dev->bus;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ writew(value, bus->mmio + offset);
+}
+
+static void ssb_ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
+{
+ struct ssb_bus *bus = dev->bus;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ writel(value, bus->mmio + offset);
+}
+
+static const struct ssb_bus_ops ssb_ssb_ops = {
+ .read16 = ssb_ssb_read16,
+ .read32 = ssb_ssb_read32,
+ .write16 = ssb_ssb_write16,
+ .write32 = ssb_ssb_write32,
+};
+
+static int ssb_bus_register(struct ssb_bus *bus,
+ unsigned long baseaddr)
+{
+ int err;
+
+ spin_lock_init(&bus->bar_lock);
+ INIT_LIST_HEAD(&bus->list);
+
+ ssb_get_boardtype(bus);
+ /* Powerup the bus */
+ err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1);
+ if (err)
+ goto out;
+ ssb_buses_lock();
+ bus->busnumber = nr_buses;
+ /* Scan for devices (cores) */
+ err = ssb_bus_scan(bus, baseaddr);
+ if (err)
+ goto err_disable_xtal;
+
+ /* Init PCI-host device (if any) */
+ err = ssb_pci_init(bus);
+ if (err)
+ goto err_unmap;
+ /* Init PCMCIA-host device (if any) */
+ err = ssb_pcmcia_init(bus);
+ if (err)
+ goto err_pci_exit;
+
+ /* Initialize basic system devices (if available) */
+ ssb_chipcommon_init(&bus->chipco);
+ ssb_mipscore_init(&bus->mipscore);
+
+ /* Queue it for attach */
+ list_add_tail(&bus->list, &attach_queue);
+ if (!is_early_boot()) {
+ /* This is not early boot, so we must attach the bus now */
+ err = ssb_attach_queued_buses();
+ if (err)
+ goto err_dequeue;
+ }
+ nr_buses++;
+ ssb_buses_unlock();
+
+out:
+ return err;
+
+err_dequeue:
+ list_del(&bus->list);
+/* err_pcmcia_exit: */
+/* ssb_pcmcia_exit(bus); */
+err_pci_exit:
+ ssb_pci_exit(bus);
+err_unmap:
+ ssb_iounmap(bus);
+err_disable_xtal:
+ ssb_buses_unlock();
+ ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0);
+ return err;
+}
+
+#ifdef CONFIG_SSB_PCIHOST
+int ssb_bus_pcibus_register(struct ssb_bus *bus,
+ struct pci_dev *host_pci)
+{
+ int err;
+
+ bus->bustype = SSB_BUSTYPE_PCI;
+ bus->host_pci = host_pci;
+ bus->ops = &ssb_pci_ops;
+
+ err = ssb_bus_register(bus, 0);
+ if (!err) {
+ ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found on "
+ "PCI device %s\n", host_pci->dev.bus_id);
+ }
+
+ return err;
+}
+EXPORT_SYMBOL(ssb_bus_pcibus_register);
+#endif /* CONFIG_SSB_PCIHOST */
+
+#ifdef CONFIG_SSB_PCMCIAHOST
+int ssb_bus_pcmciabus_register(struct ssb_bus *bus,
+ struct pcmcia_device *pcmcia_dev,
+ unsigned long baseaddr,
+ void (*fill_sprom)(struct ssb_sprom *sprom))
+{
+ int err;
+
+ bus->bustype = SSB_BUSTYPE_PCMCIA;
+ bus->host_pcmcia = pcmcia_dev;
+ bus->ops = &ssb_pcmcia_ops;
+ fill_sprom(&bus->sprom);
+
+ err = ssb_bus_register(bus, baseaddr);
+ if (!err) {
+ ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found on "
+ "PCMCIA device %s\n", pcmcia_dev->devname);
+ }
+
+ return err;
+}
+EXPORT_SYMBOL(ssb_bus_pcmciabus_register);
+#endif /* CONFIG_SSB_PCMCIAHOST */
+
+int ssb_bus_ssbbus_register(struct ssb_bus *bus,
+ unsigned long baseaddr,
+ void (*fill_sprom)(struct ssb_sprom *sprom))
+{
+ int err;
+
+ bus->bustype = SSB_BUSTYPE_SSB;
+ bus->ops = &ssb_ssb_ops;
+ fill_sprom(&bus->sprom);
+
+ err = ssb_bus_register(bus, baseaddr);
+ if (!err) {
+ ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found at "
+ "address 0x%08lX\n", baseaddr);
+ }
+
+ return err;
+}
+
+int __ssb_driver_register(struct ssb_driver *drv, struct module *owner)
+{
+ drv->drv.name = drv->name;
+ drv->drv.bus = &ssb_bustype;
+ drv->drv.owner = owner;
+
+ return driver_register(&drv->drv);
+}
+EXPORT_SYMBOL(__ssb_driver_register);
+
+void ssb_driver_unregister(struct ssb_driver *drv)
+{
+ driver_unregister(&drv->drv);
+}
+EXPORT_SYMBOL(ssb_driver_unregister);
+
+void ssb_set_devtypedata(struct ssb_device *dev, void *data)
+{
+ struct ssb_bus *bus = dev->bus;
+ struct ssb_device *ent;
+ int i;
+
+ for (i = 0; i < bus->nr_devices; i++) {
+ ent = &(bus->devices[i]);
+ if (ent->id.vendor != dev->id.vendor)
+ continue;
+ if (ent->id.coreid != dev->id.coreid)
+ continue;
+
+ ent->devtypedata = data;
+ }
+}
+EXPORT_SYMBOL(ssb_set_devtypedata);
+
+static u32 clkfactor_f6_resolve(u32 v)
+{
+ /* map the magic values */
+ switch (v) {
+ case SSB_CHIPCO_CLK_F6_2:
+ return 2;
+ case SSB_CHIPCO_CLK_F6_3:
+ return 3;
+ case SSB_CHIPCO_CLK_F6_4:
+ return 4;
+ case SSB_CHIPCO_CLK_F6_5:
+ return 5;
+ case SSB_CHIPCO_CLK_F6_6:
+ return 6;
+ case SSB_CHIPCO_CLK_F6_7:
+ return 7;
+ }
+ return 0;
+}
+
+/* Calculate the speed the backplane would run at a given set of clockcontrol values */
+u32 ssb_calc_clock_rate(u32 plltype, u32 n, u32 m)
+{
+ u32 n1, n2, clock, m1, m2, m3, mc;
+
+ n1 = (n & SSB_CHIPCO_CLK_N1);
+ n2 = ((n & SSB_CHIPCO_CLK_N2) >> SSB_CHIPCO_CLK_N2_SHIFT);
+
+ switch (plltype) {
+ case SSB_PLLTYPE_6: /* 100/200 or 120/240 only */
+ if (m & SSB_CHIPCO_CLK_T6_MMASK)
+ return SSB_CHIPCO_CLK_T6_M0;
+ return SSB_CHIPCO_CLK_T6_M1;
+ case SSB_PLLTYPE_1: /* 48Mhz base, 3 dividers */
+ case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */
+ case SSB_PLLTYPE_4: /* 48Mhz, 4 dividers */
+ case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */
+ n1 = clkfactor_f6_resolve(n1);
+ n2 += SSB_CHIPCO_CLK_F5_BIAS;
+ break;
+ case SSB_PLLTYPE_2: /* 48Mhz, 4 dividers */
+ n1 += SSB_CHIPCO_CLK_T2_BIAS;
+ n2 += SSB_CHIPCO_CLK_T2_BIAS;
+ assert((n1 >= 2) && (n1 <= 7));
+ assert((n2 >= 5) && (n2 <= 23));
+ break;
+ case SSB_PLLTYPE_5: /* 25Mhz, 4 dividers */
+ return 100000000;
+ default:
+ assert(0);
+ }
+
+ switch (plltype) {
+ case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */
+ case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */
+ clock = SSB_CHIPCO_CLK_BASE2 * n1 * n2;
+ break;
+ default:
+ clock = SSB_CHIPCO_CLK_BASE1 * n1 * n2;
+ }
+ if (!clock)
+ return 0;
+
+ m1 = (m & SSB_CHIPCO_CLK_M1);
+ m2 = ((m & SSB_CHIPCO_CLK_M2) >> SSB_CHIPCO_CLK_M2_SHIFT);
+ m3 = ((m & SSB_CHIPCO_CLK_M3) >> SSB_CHIPCO_CLK_M3_SHIFT);
+ mc = ((m & SSB_CHIPCO_CLK_MC) >> SSB_CHIPCO_CLK_MC_SHIFT);
+
+ switch (plltype) {
+ case SSB_PLLTYPE_1: /* 48Mhz base, 3 dividers */
+ case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */
+ case SSB_PLLTYPE_4: /* 48Mhz, 4 dividers */
+ case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */
+ m1 = clkfactor_f6_resolve(m1);
+ if ((plltype == SSB_PLLTYPE_1) ||
+ (plltype == SSB_PLLTYPE_3))
+ m2 += SSB_CHIPCO_CLK_F5_BIAS;
+ else
+ m2 = clkfactor_f6_resolve(m2);
+ m3 = clkfactor_f6_resolve(m3);
+
+ switch (mc) {
+ case SSB_CHIPCO_CLK_MC_BYPASS:
+ return clock;
+ case SSB_CHIPCO_CLK_MC_M1:
+ return (clock / m1);
+ case SSB_CHIPCO_CLK_MC_M1M2:
+ return (clock / (m1 * m2));
+ case SSB_CHIPCO_CLK_MC_M1M2M3:
+ return (clock / (m1 * m2 * m3));
+ case SSB_CHIPCO_CLK_MC_M1M3:
+ return (clock / (m1 * m3));
+ }
+ return 0;
+ case SSB_PLLTYPE_2:
+ m1 += SSB_CHIPCO_CLK_T2_BIAS;
+ m2 += SSB_CHIPCO_CLK_T2M2_BIAS;
+ m3 += SSB_CHIPCO_CLK_T2_BIAS;
+ assert((m1 >= 2) && (m1 <= 7));
+ assert((m2 >= 3) && (m2 <= 10));
+ assert((m3 >= 2) && (m3 <= 7));
+
+ if (!(mc & SSB_CHIPCO_CLK_T2MC_M1BYP))
+ clock /= m1;
+ if (!(mc & SSB_CHIPCO_CLK_T2MC_M2BYP))
+ clock /= m2;
+ if (!(mc & SSB_CHIPCO_CLK_T2MC_M3BYP))
+ clock /= m3;
+ return clock;
+ default:
+ assert(0);
+ }
+ return 0;
+}
+
+/* Get the current speed the backplane is running at */
+u32 ssb_clockspeed(struct ssb_bus *bus)
+{
+ u32 rate;
+ u32 plltype;
+ u32 clkctl_n, clkctl_m;
+
+ //TODO if EXTIF: PLLTYPE == 1, read n from clockcontrol_n, m from clockcontrol_sb
+
+ if (bus->chipco.dev) {
+ ssb_chipco_get_clockcontrol(&bus->chipco, &plltype,
+ &clkctl_n, &clkctl_m);
+ } else
+ return 0;
+
+ if (bus->chip_id == 0x5365) {
+ rate = 100000000;
+ } else {
+ rate = ssb_calc_clock_rate(plltype, clkctl_n, clkctl_m);
+ if (plltype == SSB_PLLTYPE_3) /* 25Mhz, 2 dividers */
+ rate /= 2;
+ }
+
+ return rate;
+}
+EXPORT_SYMBOL(ssb_clockspeed);
+
+static u32 ssb_tmslow_reject_bitmask(struct ssb_device *dev)
+{
+ /* The REJECT bit changed position in TMSLOW between
+ * Backplane revisions. */
+ switch (ssb_read32(dev, SSB_IDLOW) & SSB_IDLOW_SSBREV) {
+ case SSB_IDLOW_SSBREV_22:
+ return SSB_TMSLOW_REJECT_22;
+ case SSB_IDLOW_SSBREV_23:
+ return SSB_TMSLOW_REJECT_23;
+ default:
+ assert(0);
+ }
+ return (SSB_TMSLOW_REJECT_22 | SSB_TMSLOW_REJECT_23);
+}
+
+int ssb_device_is_enabled(struct ssb_device *dev)
+{
+ u32 val;
+ u32 reject;
+
+ reject = ssb_tmslow_reject_bitmask(dev);
+ val = ssb_read32(dev, SSB_TMSLOW);
+ val &= SSB_TMSLOW_CLOCK | SSB_TMSLOW_RESET | reject;
+
+ return (val == SSB_TMSLOW_CLOCK);
+}
+EXPORT_SYMBOL(ssb_device_is_enabled);
+
+void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags)
+{
+ u32 val;
+
+ ssb_device_disable(dev, core_specific_flags);
+ ssb_write32(dev, SSB_TMSLOW,
+ SSB_TMSLOW_RESET | SSB_TMSLOW_CLOCK |
+ SSB_TMSLOW_FGC | core_specific_flags);
+ /* flush */
+ ssb_read32(dev, SSB_TMSLOW);
+ udelay(1);
+
+ /* Clear SERR if set. This is a hw bug workaround. */
+ if (ssb_read32(dev, SSB_TMSHIGH) & SSB_TMSHIGH_SERR)
+ ssb_write32(dev, SSB_TMSHIGH, 0);
+
+ val = ssb_read32(dev, SSB_IMSTATE);
+ if (val & (SSB_IMSTATE_IBE | SSB_IMSTATE_TO)) {
+ val &= ~(SSB_IMSTATE_IBE | SSB_IMSTATE_TO);
+ ssb_write32(dev, SSB_IMSTATE, val);
+ }
+
+ ssb_write32(dev, SSB_TMSLOW,
+ SSB_TMSLOW_CLOCK | SSB_TMSLOW_FGC |
+ core_specific_flags);
+ /* flush */
+ ssb_read32(dev, SSB_TMSLOW);
+ udelay(1);
+
+ ssb_write32(dev, SSB_TMSLOW, SSB_TMSLOW_CLOCK |
+ core_specific_flags);
+ /* flush */
+ ssb_read32(dev, SSB_TMSLOW);
+ udelay(1);
+}
+EXPORT_SYMBOL(ssb_device_enable);
+
+static int ssb_wait_bit(struct ssb_device *dev, u16 reg, u32 bitmask,
+ int timeout, int set)
+{
+ int i;
+ u32 val;
+
+ for (i = 0; i < timeout; i++) {
+ val = ssb_read32(dev, reg);
+ if (set) {
+ if (val & bitmask)
+ return 0;
+ } else {
+ if (!(val & bitmask))
+ return 0;
+ }
+ udelay(10);
+ }
+ printk(KERN_ERR PFX "Timeout waiting for bitmask %08X on "
+ "register %04X to %s.\n",
+ bitmask, reg, (set ? "set" : "clear"));
+
+ return -ETIMEDOUT;
+}
+
+void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags)
+{
+ u32 reject;
+
+ if (ssb_read32(dev, SSB_TMSLOW) & SSB_TMSLOW_RESET)
+ return;
+
+ reject = ssb_tmslow_reject_bitmask(dev);
+ ssb_write32(dev, SSB_TMSLOW, reject | SSB_TMSLOW_CLOCK);
+ ssb_wait_bit(dev, SSB_TMSLOW, reject, 1000, 1);
+ ssb_wait_bit(dev, SSB_TMSHIGH, SSB_TMSHIGH_BUSY, 1000, 0);
+ ssb_write32(dev, SSB_TMSLOW,
+ SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK |
+ reject | SSB_TMSLOW_RESET |
+ core_specific_flags);
+ /* flush */
+ ssb_read32(dev, SSB_TMSLOW);
+ udelay(1);
+
+ ssb_write32(dev, SSB_TMSLOW,
+ reject | SSB_TMSLOW_RESET |
+ core_specific_flags);
+ /* flush */
+ ssb_read32(dev, SSB_TMSLOW);
+ udelay(1);
+}
+EXPORT_SYMBOL(ssb_device_disable);
+
+u32 ssb_dma_translation(struct ssb_device *dev)
+{
+ switch(dev->bus->bustype) {
+ case SSB_BUSTYPE_SSB:
+ return 0;
+ case SSB_BUSTYPE_PCI:
+ case SSB_BUSTYPE_PCMCIA:
+ return SSB_PCI_DMA;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(ssb_dma_translation);
+
+int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask)
+{
+ struct device *dev = ssb_dev->dev;
+
+#ifdef CONFIG_SSB_PCIHOST
+ if (ssb_dev->bus->bustype == SSB_BUSTYPE_PCI &&
+ !dma_supported(dev, mask))
+ return -EIO;
+#endif
+ dev->coherent_dma_mask = mask;
+ dev->dma_mask = &dev->coherent_dma_mask;
+
+ return 0;
+}
+EXPORT_SYMBOL(ssb_dma_set_mask);
+
+int ssb_bus_may_powerdown(struct ssb_bus *bus)
+{
+ struct ssb_chipcommon *cc;
+ int err;
+
+ /* On buses where more than one core may be working
+ * at a time, we must not powerdown stuff if there are
+ * still cores that may want to run. */
+ if (bus->bustype == SSB_BUSTYPE_SSB)
+ return 0;
+
+ cc = &bus->chipco;
+ ssb_chipco_set_clockmode(cc, SSB_CLKMODE_SLOW);
+ err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0);
+ if (err)
+ goto error;
+
+ return 0;
+error:
+ ssb_printk(KERN_ERR PFX "Bus powerdown failed\n");
+ return err;
+}
+EXPORT_SYMBOL(ssb_bus_may_powerdown);
+
+int ssb_bus_powerup(struct ssb_bus *bus, int dynamic_pctl)
+{
+ struct ssb_chipcommon *cc;
+ int err;
+ enum ssb_clkmode mode;
+
+ err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1);
+ if (err)
+ goto error;
+ cc = &bus->chipco;
+ mode = dynamic_pctl ? SSB_CLKMODE_DYNAMIC : SSB_CLKMODE_FAST;
+ ssb_chipco_set_clockmode(cc, mode);
+
+ return 0;
+error:
+ ssb_printk(KERN_ERR PFX "Bus powerup failed\n");
+ return err;
+}
+EXPORT_SYMBOL(ssb_bus_powerup);
+
+u32 ssb_admatch_base(u32 adm)
+{
+ u32 base = 0;
+
+ switch (adm & SSB_ADM_TYPE) {
+ case SSB_ADM_TYPE0:
+ base = (adm & SSB_ADM_BASE0);
+ break;
+ case SSB_ADM_TYPE1:
+ assert(!(adm & SSB_ADM_NEG)); /* unsupported */
+ base = (adm & SSB_ADM_BASE1);
+ break;
+ case SSB_ADM_TYPE2:
+ assert(!(adm & SSB_ADM_NEG)); /* unsupported */
+ base = (adm & SSB_ADM_BASE2);
+ break;
+ default:
+ assert(0);
+ }
+
+ return base;
+}
+EXPORT_SYMBOL(ssb_admatch_base);
+
+u32 ssb_admatch_size(u32 adm)
+{
+ u32 size = 0;
+
+ switch (adm & SSB_ADM_TYPE) {
+ case SSB_ADM_TYPE0:
+ size = ((adm & SSB_ADM_SZ0) >> SSB_ADM_SZ0_SHIFT);
+ break;
+ case SSB_ADM_TYPE1:
+ assert(!(adm & SSB_ADM_NEG)); /* unsupported */
+ size = ((adm & SSB_ADM_SZ1) >> SSB_ADM_SZ1_SHIFT);
+ break;
+ case SSB_ADM_TYPE2:
+ assert(!(adm & SSB_ADM_NEG)); /* unsupported */
+ size = ((adm & SSB_ADM_SZ2) >> SSB_ADM_SZ2_SHIFT);
+ break;
+ default:
+ assert(0);
+ }
+ size = (1 << (size + 1));
+
+ return size;
+}
+EXPORT_SYMBOL(ssb_admatch_size);
+
+static int __init ssb_modinit(void)
+{
+ int err;
+
+ ssb_bustype.name = "ssb";
+ err = bus_register(&ssb_bustype);
+ if (err)
+ return err;
+
+ /* Maybe we already registered some buses at early boot.
+ * Check for this and attach them
+ */
+ ssb_buses_lock();
+ err = ssb_attach_queued_buses();
+ ssb_buses_unlock();
+ if (err)
+ bus_unregister(&ssb_bustype);
+
+ return err;
+}
+subsys_initcall(ssb_modinit);
+
+static void __exit ssb_modexit(void)
+{
+ bus_unregister(&ssb_bustype);
+}
+module_exit(ssb_modexit)
err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
if (err)
goto err_pci;
- msleep(2);
+ msleep(5);
}
}
sprom[i] = readw(bus->mmio + SSB_SPROM_BASE + (i * 2));
}
+static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom)
+{
+ struct pci_dev *pdev = bus->host_pci;
+ int i, err;
+ u32 spromctl;
+
+ ssb_printk(KERN_NOTICE PFX "Writing SPROM. Do NOT turn off the power! Please stand by...\n");
+ err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl);
+ if (err)
+ goto err_ctlreg;
+ spromctl |= SSB_SPROMCTL_WE;
+ err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl);
+ if (err)
+ goto err_ctlreg;
+ ssb_printk(KERN_NOTICE PFX "[ 0%%");
+ msleep(500);
+ for (i = 0; i < SSB_SPROMSIZE_WORDS; i++) {
+ if (i == SSB_SPROMSIZE_WORDS / 4)
+ ssb_printk("25%%");
+ else if (i == SSB_SPROMSIZE_WORDS / 2)
+ ssb_printk("50%%");
+ else if (i == (SSB_SPROMSIZE_WORDS / 4) * 3)
+ ssb_printk("75%%");
+ else if (i % 2)
+ ssb_printk(".");
+ writew(sprom[i], bus->mmio + SSB_SPROM_BASE + (i * 2));
+ mmiowb();
+ msleep(20);
+ }
+ err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl);
+ if (err)
+ goto err_ctlreg;
+ spromctl &= ~SSB_SPROMCTL_WE;
+ err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl);
+ if (err)
+ goto err_ctlreg;
+ msleep(500);
+ ssb_printk("100%% ]\n");
+ ssb_printk(KERN_NOTICE PFX "SPROM written.\n");
+
+ return 0;
+err_ctlreg:
+ ssb_printk(KERN_ERR PFX "Could not access SPROM control register.\n");
+ return err;
+}
+
static void sprom_extract_r1(struct ssb_sprom_r1 *out, const u16 *in)
{
int i;
.write32 = ssb_pci_write32,
};
+static int sprom2hex(const u16 *sprom, char *buf, size_t buf_len)
+{
+ int i, pos = 0;
+
+ for (i = 0; i < SSB_SPROMSIZE_WORDS; i++) {
+ pos += snprintf(buf + pos, buf_len - pos - 1,
+ "%04X", swab16(sprom[i]) & 0xFFFF);
+ }
+ pos += snprintf(buf + pos, buf_len - pos - 1, "\n");
+
+ return pos + 1;
+}
+
+static int hex2sprom(u16 *sprom, const char *dump, size_t len)
+{
+ char tmp[5] = { 0 };
+ int cnt = 0;
+ unsigned long parsed;
+
+ if (len < SSB_SPROMSIZE_BYTES * 2)
+ return -EINVAL;
+
+ while (cnt < SSB_SPROMSIZE_WORDS) {
+ memcpy(tmp, dump, 4);
+ dump += 4;
+ parsed = simple_strtoul(tmp, NULL, 16);
+ sprom[cnt++] = swab16((u16)parsed);
+ }
+
+ return 0;
+}
+
+static ssize_t ssb_pci_attr_sprom_show(struct device *pcidev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
+ struct ssb_bus *bus;
+ u16 *sprom;
+ int err = -ENODEV;
+ ssize_t count = 0;
+
+ bus = ssb_pci_dev_to_bus(pdev);
+ if (!bus)
+ goto out;
+ err = -ENOMEM;
+ sprom = kcalloc(SSB_SPROMSIZE_WORDS, sizeof(u16), GFP_KERNEL);
+ if (!sprom)
+ goto out;
+
+ err = -ERESTARTSYS;
+ if (mutex_lock_interruptible(&bus->pci_sprom_mutex))
+ goto out_kfree;
+ sprom_do_read(bus, sprom);
+ mutex_unlock(&bus->pci_sprom_mutex);
+
+ count = sprom2hex(sprom, buf, PAGE_SIZE);
+ err = 0;
+
+out_kfree:
+ kfree(sprom);
+out:
+ return err ? err : count;
+}
+
+static ssize_t ssb_pci_attr_sprom_store(struct device *pcidev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
+ struct ssb_bus *bus;
+ u16 *sprom;
+ int res = 0, err = -ENODEV;
+
+ bus = ssb_pci_dev_to_bus(pdev);
+ if (!bus)
+ goto out;
+ err = -ENOMEM;
+ sprom = kcalloc(SSB_SPROMSIZE_WORDS, sizeof(u16), GFP_KERNEL);
+ if (!sprom)
+ goto out;
+ err = hex2sprom(sprom, buf, count);
+ if (err) {
+ err = -EINVAL;
+ goto out_kfree;
+ }
+ err = sprom_check_crc(sprom);
+ if (err) {
+ err = -EINVAL;
+ goto out_kfree;
+ }
+
+ err = -ERESTARTSYS;
+ if (mutex_lock_interruptible(&bus->pci_sprom_mutex))
+ goto out_kfree;
+ err = ssb_devices_freeze(bus);
+ if (err) {
+ ssb_printk(KERN_ERR PFX "SPROM write: Could not freeze all devices\n");
+ goto out_unlock;
+ }
+ res = sprom_do_write(bus, sprom);
+ err = ssb_devices_thaw(bus);
+ if (err)
+ ssb_printk(KERN_ERR PFX "SPROM write: Could not thaw all devices\n");
+out_unlock:
+ mutex_unlock(&bus->pci_sprom_mutex);
+out_kfree:
+ kfree(sprom);
+out:
+ if (res)
+ return res;
+ return err ? err : count;
+}
+
+static DEVICE_ATTR(ssb_sprom, 0600,
+ ssb_pci_attr_sprom_show,
+ ssb_pci_attr_sprom_store);
+
+void ssb_pci_exit(struct ssb_bus *bus)
+{
+ struct pci_dev *pdev;
+
+ if (bus->bustype != SSB_BUSTYPE_PCI)
+ return;
+
+ pdev = bus->host_pci;
+ device_remove_file(&pdev->dev, &dev_attr_ssb_sprom);
+}
+
int ssb_pci_init(struct ssb_bus *bus)
{
+ struct pci_dev *pdev;
+ int err;
+
if (bus->bustype != SSB_BUSTYPE_PCI)
return 0;
- return ssb_pci_sprom_get(bus);
+
+ pdev = bus->host_pci;
+ mutex_init(&bus->pci_sprom_mutex);
+ err = device_create_file(&pdev->dev, &dev_attr_ssb_sprom);
+ if (err)
+ goto out;
+ err = ssb_pci_sprom_get(bus);
+ if (err)
+ goto err_remove_sprom_file;
+
+out:
+ return err;
+err_remove_sprom_file:
+ device_remove_file(&pdev->dev, &dev_attr_ssb_sprom);
+ return err;
}
--- /dev/null
+/*
+ * Sonics Silicon Backplane
+ * PCI Hostdevice wrapper
+ *
+ * Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
+ * Copyright (c) 2005 Stefano Brivio <st3@riseup.net>
+ * Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
+ * Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
+ * Copyright (c) 2005-2007 Michael Buesch <mbuesch@freenet.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/pci.h>
+#include <linux/ssb/ssb.h>
+
+
+#ifdef CONFIG_PM
+static int ssb_pcihost_suspend(struct pci_dev *dev, pm_message_t state)
+{
+ pci_save_state(dev);
+ pci_disable_device(dev);
+ pci_set_power_state(dev, pci_choose_state(dev, state));
+
+ return 0;
+}
+
+static int ssb_pcihost_resume(struct pci_dev *dev)
+{
+ int err;
+
+ pci_set_power_state(dev, 0);
+ err = pci_enable_device(dev);
+ if (err)
+ return err;
+ pci_restore_state(dev);
+
+ return 0;
+}
+#else /* CONFIG_PM */
+# define ssb_pcihost_suspend NULL
+# define ssb_pcihost_resume NULL
+#endif /* CONFIG_PM */
+
+static int ssb_pcihost_probe(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ struct ssb_bus *ssb;
+ int err = -ENOMEM;
+ const char *name;
+
+ ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
+ if (!ssb)
+ goto out;
+ err = pci_enable_device(dev);
+ if (err)
+ goto err_kfree_ssb;
+ name = dev->dev.bus_id;
+ if (dev->driver && dev->driver->name)
+ name = dev->driver->name;
+ err = pci_request_regions(dev, name);
+ if (err)
+ goto err_pci_disable;
+ pci_set_master(dev);
+
+ err = ssb_bus_pcibus_register(ssb, dev);
+ if (err)
+ goto err_pci_release_regions;
+
+ pci_set_drvdata(dev, ssb);
+
+out:
+ return err;
+
+err_pci_release_regions:
+ pci_release_regions(dev);
+err_pci_disable:
+ pci_disable_device(dev);
+err_kfree_ssb:
+ kfree(ssb);
+ return err;
+}
+
+static void ssb_pcihost_remove(struct pci_dev *dev)
+{
+ struct ssb_bus *ssb = pci_get_drvdata(dev);
+
+ ssb_bus_unregister(ssb);
+ pci_release_regions(dev);
+ pci_disable_device(dev);
+ kfree(ssb);
+ pci_set_drvdata(dev, NULL);
+}
+
+int ssb_pcihost_register(struct pci_driver *driver)
+{
+ driver->probe = ssb_pcihost_probe;
+ driver->remove = ssb_pcihost_remove;
+ driver->suspend = ssb_pcihost_suspend;
+ driver->resume = ssb_pcihost_resume;
+
+ return pci_register_driver(driver);
+}
+EXPORT_SYMBOL(ssb_pcihost_register);
#include <linux/pci.h>
#include <asm/io.h>
+#ifdef CONFIG_SSB_PCMCIAHOST
+# include <pcmcia/cs_types.h>
+# include <pcmcia/cs.h>
+# include <pcmcia/cistpl.h>
+# include <pcmcia/ds.h>
+#endif
+
#include "ssb_private.h"
return mmio;
}
+static int we_support_multiple_80211_cores(struct ssb_bus *bus)
+{
+ /* More than one 802.11 core is only supported by special chips.
+ * There are chips with two 802.11 cores, but with dangling
+ * pins on the second core. Be careful and reject them here.
+ */
+
+#ifdef CONFIG_SSB_PCIHOST
+ if (bus->bustype == SSB_BUSTYPE_PCI) {
+ if (bus->host_pci->vendor == PCI_VENDOR_ID_BROADCOM &&
+ bus->host_pci->device == 0x4324)
+ return 1;
+ }
+#endif /* CONFIG_SSB_PCIHOST */
+ return 0;
+}
+
int ssb_bus_scan(struct ssb_bus *bus,
unsigned long baseaddr)
{
int err = -ENOMEM;
void __iomem *mmio;
u32 idhi, cc, rev, tmp;
- int i;
+ int dev_i, i;
struct ssb_device *dev;
+ int nr_80211_cores = 0;
mmio = ssb_ioremap(bus, baseaddr);
if (!mmio)
}
/* Fetch basic information about each core/device */
- for (i = 0; i < bus->nr_devices; i++) {
+ for (i = 0, dev_i = 0; i < bus->nr_devices; i++) {
err = scan_switchcore(bus, i);
if (err)
goto err_unmap;
- dev = &(bus->devices[i]);
+ dev = &(bus->devices[dev_i]);
idhi = scan_read32(bus, i, SSB_IDHIGH);
dev->id.coreid = (idhi & SSB_IDHIGH_CC) >> SSB_IDHIGH_CC_SHIFT;
dev->id.vendor = (idhi & SSB_IDHIGH_VC) >> SSB_IDHIGH_VC_SHIFT;
dev->core_index = i;
dev->bus = bus;
- if ((dev->bus->bustype == SSB_BUSTYPE_PCI) && (bus->host_pci))
- dev->irq = bus->host_pci->irq;
+ dev->ops = bus->ops;
ssb_dprintk(KERN_INFO PFX
"Core %d found: %s "
i, ssb_core_name(dev->id.coreid),
dev->id.coreid, dev->id.revision, dev->id.vendor);
- dev->dev.bus = &ssb_bustype;
- snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id),
- "ssb%02x:%02x", bus->busnumber, i);
-
switch (dev->id.coreid) {
+ case SSB_DEV_80211:
+ nr_80211_cores++;
+ if (nr_80211_cores > 1) {
+ if (!we_support_multiple_80211_cores(bus)) {
+ ssb_dprintk(KERN_INFO PFX "Ignoring additional "
+ "802.11 core\n");
+ continue;
+ }
+ }
+ break;
case SSB_DEV_EXTIF:
-#ifdef CONFIG_BCM947XX
+#ifdef CONFIG_SSB_DRIVER_EXTIF
if (bus->extif.dev) {
ssb_printk(KERN_WARNING PFX
"WARNING: Multiple EXTIFs found\n");
break;
case SSB_DEV_MIPS:
case SSB_DEV_MIPS_3302:
-#ifdef CONFIG_BCM947XX
+#ifdef CONFIG_SSB_DRIVER_MIPS
if (bus->mipscore.dev) {
ssb_printk(KERN_WARNING PFX
"WARNING: Multiple MIPS cores found\n");
break;
}
bus->mipscore.dev = dev;
-#endif /* CONFIG_BCM947XX */
+#endif /* CONFIG_SSB_DRIVER_MIPS */
break;
case SSB_DEV_PCI:
case SSB_DEV_PCIE:
default:
break;
}
+
+ dev_i++;
}
+ bus->nr_devices = dev_i;
+
err = 0;
out:
return err;
int turn_on);
extern int ssb_pci_sprom_get(struct ssb_bus *bus);
extern void ssb_pci_get_boardtype(struct ssb_bus *bus);
+extern void ssb_pci_exit(struct ssb_bus *bus);
extern int ssb_pci_init(struct ssb_bus *bus);
extern const struct ssb_bus_ops ssb_pci_ops;
static inline void ssb_pci_get_boardtype(struct ssb_bus *bus)
{
}
+static inline void ssb_pci_exit(struct ssb_bus *bus)
+{
+}
static inline int ssb_pci_init(struct ssb_bus *bus)
{
return 0;
/* core.c */
-extern struct bus_type ssb_bustype;
extern u32 ssb_calc_clock_rate(u32 plltype, u32 n, u32 m);
+#ifdef CONFIG_SSB_PCIHOST
+extern int ssb_devices_freeze(struct ssb_bus *bus);
+extern int ssb_devices_thaw(struct ssb_bus *bus);
+extern struct ssb_bus * ssb_pci_dev_to_bus(struct pci_dev *pdev);
+#endif /* CONFIG_SSB_PCIHOST */
/* Ceiling division helper. Divides x by y. */
--- /dev/null
+/*
+ * Sonics Silicon Backplane
+ * Broadcom USB-core OHCI driver
+ *
+ * Copyright 2007 Michael Buesch <mb@bu3sch.de>
+ *
+ * Derived from the OHCI-PCI driver
+ * Copyright 1999 Roman Weissgaerber
+ * Copyright 2000-2002 David Brownell
+ * Copyright 1999 Linus Torvalds
+ * Copyright 1999 Gregory P. Smith
+ *
+ * Derived from the USBcore related parts of Broadcom-SB
+ * Copyright 2005 Broadcom Corporation
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+
+
+#define SSB_OHCI_TMSLOW_HOSTMODE (1 << 29)
+
+struct ssb_ohci_device {
+ struct ohci_hcd ohci; /* _must_ be at the beginning. */
+
+ u32 enable_flags;
+};
+
+
+static inline
+struct ssb_ohci_device * hcd_to_ssb_ohci(struct usb_hcd *hcd)
+{
+ return (struct ssb_ohci_device *)(hcd->hcd_priv);
+}
+
+
+static const struct ssb_device_id ssb_ohci_table[] = {
+ SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOSTDEV, SSB_ANY_REV),
+ SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOST, SSB_ANY_REV),
+ SSB_DEVTABLE_END
+};
+MODULE_DEVICE_TABLE(ssb, ssb_ohci_table);
+
+
+static int ssb_ohci_reset(struct usb_hcd *hcd)
+{
+ struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
+ struct ohci_hcd *ohci = &ohcidev->ohci;
+ int err;
+
+ ohci_hcd_init(ohci);
+ err = ohci_init(ohci);
+
+ return err;
+}
+
+static int ssb_ohci_start(struct usb_hcd *hcd)
+{
+ struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
+ struct ohci_hcd *ohci = &ohcidev->ohci;
+ int err;
+
+ err = ohci_run(ohci);
+ if (err < 0) {
+ ohci_err(ohci, "can't start\n");
+ ohci_stop(hcd);
+ }
+
+ return err;
+}
+
+#ifdef CONFIG_PM
+static int ssb_ohci_hcd_suspend(struct usb_hcd *hcd, pm_message_t message)
+{
+ struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
+ struct ohci_hcd *ohci = &ohcidev->ohci;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ohci->lock, flags);
+
+ ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
+ ohci_readl(ohci, &ohci->regs->intrdisable); /* commit write */
+
+ /* make sure snapshot being resumed re-enumerates everything */
+ if (message.event == PM_EVENT_PRETHAW)
+ ohci_usb_reset(ohci);
+
+ clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+
+ spin_unlock_irqrestore(&ohci->lock, flags);
+
+ return 0;
+}
+
+static int ssb_ohci_hcd_resume(struct usb_hcd *hcd)
+{
+ set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ usb_hcd_resume_root_hub(hcd);
+ return 0;
+}
+#endif /* CONFIG_PM */
+
+static const struct hc_driver ssb_ohci_hc_driver = {
+ .description = "ssb-usb-ohci",
+ .product_desc = "SSB OHCI Controller",
+ .hcd_priv_size = sizeof(struct ssb_ohci_device),
+
+ .irq = ohci_irq,
+ .flags = HCD_MEMORY | HCD_USB11,
+
+ .reset = ssb_ohci_reset,
+ .start = ssb_ohci_start,
+ .stop = ohci_stop,
+ .shutdown = ohci_shutdown,
+
+#ifdef CONFIG_PM
+ .suspend = ssb_ohci_hcd_suspend,
+ .resume = ssb_ohci_hcd_resume,
+#endif
+
+ .urb_enqueue = ohci_urb_enqueue,
+ .urb_dequeue = ohci_urb_dequeue,
+ .endpoint_disable = ohci_endpoint_disable,
+
+ .get_frame_number = ohci_get_frame,
+
+ .hub_status_data = ohci_hub_status_data,
+ .hub_control = ohci_hub_control,
+ .hub_irq_enable = ohci_rhsc_enable,
+
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
+#endif
+
+ .start_port_reset = ohci_start_port_reset,
+};
+
+
+static void ssb_ohci_detach(struct ssb_device *dev)
+{
+ struct usb_hcd *hcd = ssb_get_drvdata(dev);
+
+ usb_remove_hcd(hcd);
+ iounmap(hcd->regs);
+ usb_put_hcd(hcd);
+ ssb_device_disable(dev, 0);
+}
+
+static int ssb_ohci_attach(struct ssb_device *dev)
+{
+ struct ssb_ohci_device *ohcidev;
+ struct usb_hcd *hcd;
+ int err = -ENOMEM;
+ u32 tmp, flags = 0;
+
+ if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV)
+ flags |= SSB_OHCI_TMSLOW_HOSTMODE;
+
+ ssb_device_enable(dev, flags);
+
+ hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev,
+ dev->dev->bus_id);
+ if (!hcd)
+ goto err_dev_disable;
+ ohcidev = hcd_to_ssb_ohci(hcd);
+ ohcidev->enable_flags = flags;
+
+ tmp = ssb_read32(dev, SSB_ADMATCH0);
+ hcd->rsrc_start = ssb_admatch_base(tmp);
+ hcd->rsrc_len = ssb_admatch_size(tmp);
+ hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
+ if (!hcd->regs)
+ goto err_put_hcd;
+ err = usb_add_hcd(hcd, dev->irq, IRQF_SHARED);
+ if (err)
+ goto err_iounmap;
+
+ ssb_set_drvdata(dev, hcd);
+
+ return err;
+
+err_iounmap:
+ iounmap(hcd->regs);
+err_put_hcd:
+ usb_put_hcd(hcd);
+err_dev_disable:
+ ssb_device_disable(dev, flags);
+ return err;
+}
+
+static int ssb_ohci_probe(struct ssb_device *dev,
+ const struct ssb_device_id *id)
+{
+ int err;
+ u16 chipid_top;
+
+ chipid_top = (dev->bus->chip_id & 0xFF00);
+ if (chipid_top != 0x4700 &&
+ chipid_top != 0x5300) {
+ /* USBcores are only connected on embedded devices. */
+ return -ENODEV;
+ }
+ /* TODO: Probably need more checks here whether the core is connected. */
+
+ if (usb_disabled())
+ return -ENODEV;
+
+ /* We currently always attach SSB_DEV_USB11_HOSTDEV
+ * as HOST OHCI. If we want to attach it as Client device,
+ * we must branch here and call into the (yet to
+ * be written) Client mode driver. Same for remove(). */
+
+ err = ssb_ohci_attach(dev);
+
+ return err;
+}
+
+static void ssb_ohci_remove(struct ssb_device *dev)
+{
+ ssb_ohci_detach(dev);
+}
+
+#ifdef CONFIG_PM
+static int ssb_ohci_suspend(struct ssb_device *dev, pm_message_t state)
+{
+ ssb_device_disable(dev, 0);
+
+ return 0;
+}
+
+static int ssb_ohci_resume(struct ssb_device *dev)
+{
+ struct usb_hcd *hcd = ssb_get_drvdata(dev);
+ struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
+
+ ssb_device_enable(dev, ohcidev->enable_flags);
+
+ return 0;
+}
+#else /* CONFIG_PM */
+# define ssb_ohci_suspend NULL
+# define ssb_ohci_resume NULL
+#endif /* CONFIG_PM */
+
+static struct ssb_driver ssb_ohci_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = ssb_ohci_table,
+ .probe = ssb_ohci_probe,
+ .remove = ssb_ohci_remove,
+ .suspend = ssb_ohci_suspend,
+ .resume = ssb_ohci_resume,
+};
#include <linux/list.h>
#include <linux/types.h>
#include <linux/spinlock.h>
+#ifdef CONFIG_SSB_PCIHOST
+# include <linux/pci.h>
+#endif
#include <linux/ssb/ssb_regs.h>
};
+struct ssb_device;
+/* Lowlevel read/write operations on the device MMIO.
+ * Internal, don't use that outside of ssb. */
+struct ssb_bus_ops {
+ u16 (*read16)(struct ssb_device *dev, u16 offset);
+ u32 (*read32)(struct ssb_device *dev, u16 offset);
+ void (*write16)(struct ssb_device *dev, u16 offset, u16 value);
+ void (*write32)(struct ssb_device *dev, u16 offset, u32 value);
+};
+
+
/* Core-ID values. */
#define SSB_DEV_CHIPCOMMON 0x800
#define SSB_DEV_ILINE20 0x801
#define SSB_ANY_ID 0xFFFF
#define SSB_ANY_REV 0xFF
+/* Some kernel subsystems poke with dev->drvdata, so we must use the
+ * following ugly workaround to get from struct device to struct ssb_device */
+struct __ssb_dev_wrapper {
+ struct device dev;
+ struct ssb_device *sdev;
+};
struct ssb_device {
- struct device dev;
+ /* Having a copy of the ops pointer in each dev struct
+ * is an optimization. */
+ const struct ssb_bus_ops *ops;
+
+ struct device *dev;
struct ssb_bus *bus;
struct ssb_device_id id;
u8 core_index;
unsigned int irq;
+
+ /* Internal-only stuff follows. */
void *drvdata; /* Per-device data */
void *devtypedata; /* Per-devicetype (eg 802.11) data */
};
-#define dev_to_ssb_dev(_dev) container_of(_dev, struct ssb_device, dev)
+
+/* Go from struct device to struct ssb_device. */
+static inline
+struct ssb_device * dev_to_ssb_dev(struct device *dev)
+{
+ struct __ssb_dev_wrapper *wrap = container_of(dev, struct __ssb_dev_wrapper, dev);
+ return wrap->sdev;
+}
/* Device specific user data */
static inline
return dev->devtypedata;
}
-struct ssb_bus_ops {
- u16 (*read16)(struct ssb_device *dev, u16 offset);
- u32 (*read32)(struct ssb_device *dev, u16 offset);
- void (*write16)(struct ssb_device *dev, u16 offset, u16 value);
- void (*write32)(struct ssb_device *dev, u16 offset, u32 value);
-};
-
struct ssb_driver {
const char *name;
SSB_BUSTYPE_SSB, /* This SSB bus is the system bus */
SSB_BUSTYPE_PCI, /* SSB is connected to PCI bus */
SSB_BUSTYPE_PCMCIA, /* SSB is connected to PCMCIA bus */
- //TODO SSB_BUSTYPE_JTAG,
};
/* board_vendor */
#define SSB_CHIPPACK_BCM4712M 2 /* Medium 225pin 4712 */
#define SSB_CHIPPACK_BCM4712L 0 /* Large 340pin 4712 */
-static inline u16 ssb_read16(struct ssb_device *dev, u16 offset);
-static inline u32 ssb_read32(struct ssb_device *dev, u16 offset);
-static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value);
-static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value);
-static inline u32 ssb_write32_masked(struct ssb_device *dev, u16 offset, u32 mask, u32 value);
-
#include <linux/ssb/ssb_driver_chipcommon.h>
#include <linux/ssb/ssb_driver_mips.h>
#include <linux/ssb/ssb_driver_extif.h>
/* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */
struct pcmcia_device *host_pcmcia;
+#ifdef CONFIG_SSB_PCIHOST
+ struct mutex pci_sprom_mutex;
+#endif
+
/* ID information about the PCB. */
u16 board_vendor;
u16 board_type;
void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags);
+/* Device MMIO register read/write functions. */
static inline u16 ssb_read16(struct ssb_device *dev, u16 offset)
{
- return dev->bus->ops->read16(dev, offset);
+ return dev->ops->read16(dev, offset);
}
static inline u32 ssb_read32(struct ssb_device *dev, u16 offset)
{
- return dev->bus->ops->read32(dev, offset);
+ return dev->ops->read32(dev, offset);
}
static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
{
- dev->bus->ops->write16(dev, offset, value);
+ dev->ops->write16(dev, offset, value);
}
static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
{
- dev->bus->ops->write32(dev, offset, value);
-}
-
-static inline u32 ssb_write32_masked(struct ssb_device *dev,
- u16 offset,
- u32 mask,
- u32 value)
-{
- value &= mask;
- value |= ssb_read32(dev, offset) & ~mask;
- ssb_write32(dev, offset, value);
- return value;
+ dev->ops->write32(dev, offset, value);
}
extern int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask);
+#ifdef CONFIG_SSB_PCIHOST
+/* PCI-host wrapper driver */
+extern int ssb_pcihost_register(struct pci_driver *driver);
+static inline void ssb_pcihost_unregister(struct pci_driver *driver)
+{
+ pci_unregister_driver(driver);
+}
+#endif /* CONFIG_SSB_PCIHOST */
+
+
+/* Bus-Power handling functions. */
+extern int ssb_bus_may_powerdown(struct ssb_bus *bus);
+extern int ssb_bus_powerup(struct ssb_bus *bus, int dynamic_pctl);
+
+
/* Various helper functions */
extern u32 ssb_admatch_base(u32 adm);
extern u32 ssb_admatch_size(u32 adm);
#define SSB_CHIPCO_GPIOOUT 0x0064
#define SSB_CHIPCO_GPIOOUTEN 0x0068
#define SSB_CHIPCO_GPIOCTL 0x006C
-#define SSB_CHIPCO_GPIOINTPOL 0x0070
-#define SSB_CHIPCO_GPIOINTMASK 0x0074
+#define SSB_CHIPCO_GPIOPOL 0x0070
+#define SSB_CHIPCO_GPIOIRQ 0x0074
#define SSB_CHIPCO_WATCHDOG 0x0080
#define SSB_CHIPCO_GPIOTIMER 0x0088 /* LED powersave (corerev >= 16) */
#define SSB_CHIPCO_GPIOTIMER_ONTIME_SHIFT 16
extern void ssb_chipco_suspend(struct ssb_chipcommon *cc, pm_message_t state);
extern void ssb_chipco_resume(struct ssb_chipcommon *cc);
-extern void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc, u32 chip_id,
- u32 *rate, u32 *plltype, u32 *n, u32 *m);
extern void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc,
u32 *plltype, u32 *n, u32 *m);
extern void ssb_chipco_timing_init(struct ssb_chipcommon *cc,
extern void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc,
enum ssb_clkmode mode);
-
-/* GPIO functions */
-static inline u32 ssb_chipco_gpio_in(struct ssb_chipcommon *cc,
- u32 mask)
-{
- return ssb_read32(cc->dev, SSB_CHIPCO_GPIOIN) & mask;
-}
-
-static inline u32 ssb_chipco_gpio_out(struct ssb_chipcommon *cc,
- u32 mask, u32 value)
-{
- return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOOUT, mask, value);
-}
-
-static inline u32 ssb_chipco_gpio_outen(struct ssb_chipcommon *cc,
- u32 mask, u32 value)
-{
- return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOOUTEN, mask, value);
-}
-
-static inline u32 ssb_chipco_gpio_control(struct ssb_chipcommon *cc,
- u32 mask, u32 value)
-{
- return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOCTL, mask, value);
-}
-
-static inline u32 ssb_chipco_gpio_intmask(struct ssb_chipcommon *cc,
- u32 mask, u32 value)
-{
- return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOINTMASK, mask, value);
-}
-
-static inline u32 ssb_chipco_gpio_polarity(struct ssb_chipcommon *cc,
- u32 mask, u32 value)
-{
- return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOINTPOL, mask, value);
-}
-/* TODO: GPIO reservation */
-
-extern int ssb_chipco_watchdog(struct ssb_chipcommon *cc, uint ticks);
-
#ifdef CONFIG_SSB_SERIAL
extern int ssb_chipco_serial_init(struct ssb_chipcommon *cc,
struct ssb_serial_port *ports);
#define SSB_EXTIF_WATCHDOG_CLK 48000000 /* Hz */
-/* GPIO functions */
-static inline u32 ssb_extif_gpio_in(struct ssb_extif *extif,
- u32 mask)
-{
- return ssb_read32(extif->dev, SSB_EXTIF_GPIO_IN) & mask;
-}
-
-static inline u32 ssb_extif_gpio_out(struct ssb_extif *extif,
- u32 mask, u32 value)
-{
- return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_OUT(0), mask, value);
-}
-
-static inline u32 ssb_extif_gpio_outen(struct ssb_extif *extif,
- u32 mask, u32 value)
-{
- return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_OUTEN(0), mask, value);
-}
-
-static inline u32 ssb_extif_gpio_polarity(struct ssb_extif *extif,
- u32 mask, u32 value)
-{
- return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_INTPOL, mask, value);
-}
-
-static inline u32 ssb_extif_gpio_intmask(struct ssb_extif *extif,
- u32 mask, u32 value)
-{
- return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_INTMASK, mask, value);
-}
-
-
#endif /* __KERNEL__ */
#endif /* LINUX_SSB_EXTIFCORE_H_ */
#ifdef __KERNEL__
-#ifdef CONFIG_BCM947XX
+#ifdef CONFIG_SSB_DRIVER_MIPS
struct ssb_device;
int nr_serial_ports;
struct ssb_serial_port serial_ports[4];
- int flash_buswidth;
u32 flash_window;
u32 flash_window_size;
};
extern void ssb_mipscore_init(struct ssb_mipscore *mcore);
-extern u32 ssb_cpu_clock(struct ssb_mipscore *mcore);
+
extern unsigned int ssb_mips_irq(struct ssb_device *dev);
-#else /* CONFIG_BCM947XX */
+#else /* CONFIG_SSB_DRIVER_MIPS */
struct ssb_mipscore {
};
{
}
-#endif /* CONFIG_BCM947XX */
+#endif /* CONFIG_SSB_DRIVER_MIPS */
#endif /* __KERNEL__ */
#endif /* LINUX_SSB_MIPSCORE_H_ */
#define SSB_INTVEC_ENET1 0x00000040 /* Enable interrupts for enet 1 */
#define SSB_TMSLOW 0x0F98 /* SB Target State Low */
#define SSB_TMSLOW_RESET 0x00000001 /* Reset */
-#define SSB_TMSLOW_REJECT 0x00000002 /* Reject */
+#define SSB_TMSLOW_REJECT_22 0x00000002 /* Reject (Backplane rev 2.2) */
+#define SSB_TMSLOW_REJECT_23 0x00000004 /* Reject (Backplane rev 2.3) */
#define SSB_TMSLOW_CLOCK 0x00010000 /* Clock Enable */
#define SSB_TMSLOW_FGC 0x00020000 /* Force Gated Clocks On */
#define SSB_TMSLOW_PE 0x40000000 /* Power Management Enable */
--- /dev/null
+Index: linux-2.6.22-rc4/drivers/net/b44.c
+===================================================================
+--- linux-2.6.22-rc4.orig/drivers/net/b44.c 2007-06-10 21:33:15.000000000 +0100
++++ linux-2.6.22-rc4/drivers/net/b44.c 2007-06-10 21:33:23.000000000 +0100
+@@ -128,7 +128,7 @@
+ unsigned long offset,
+ enum dma_data_direction dir)
+ {
+- dma_sync_single_range_for_device(&sdev->dev, dma_base,
++ dma_sync_single_range_for_device(sdev->dev, dma_base,
+ offset & dma_desc_align_mask,
+ dma_desc_sync_size, dir);
+ }
+@@ -138,7 +138,7 @@
+ unsigned long offset,
+ enum dma_data_direction dir)
+ {
+- dma_sync_single_range_for_cpu(&sdev->dev, dma_base,
++ dma_sync_single_range_for_cpu(sdev->dev, dma_base,
+ offset & dma_desc_align_mask,
+ dma_desc_sync_size, dir);
+ }
+@@ -563,7 +563,7 @@
+
+ BUG_ON(skb == NULL);
+
+- dma_unmap_single(&bp->sdev->dev,
++ dma_unmap_single(bp->sdev->dev,
+ pci_unmap_addr(rp, mapping),
+ skb->len,
+ DMA_TO_DEVICE);
+@@ -603,7 +603,7 @@
+ if (skb == NULL)
+ return -ENOMEM;
+
+- mapping = dma_map_single(&bp->sdev->dev, skb->data,
++ mapping = dma_map_single(bp->sdev->dev, skb->data,
+ RX_PKT_BUF_SZ,
+ DMA_FROM_DEVICE);
+
+@@ -613,18 +613,18 @@
+ mapping + RX_PKT_BUF_SZ > DMA_30BIT_MASK) {
+ /* Sigh... */
+ if (!dma_mapping_error(mapping))
+- dma_unmap_single(&bp->sdev->dev, mapping, RX_PKT_BUF_SZ,DMA_FROM_DEVICE);
++ dma_unmap_single(bp->sdev->dev, mapping, RX_PKT_BUF_SZ,DMA_FROM_DEVICE);
+ dev_kfree_skb_any(skb);
+ skb = __dev_alloc_skb(RX_PKT_BUF_SZ,GFP_DMA);
+ if (skb == NULL)
+ return -ENOMEM;
+- mapping = dma_map_single(&bp->sdev->dev, skb->data,
++ mapping = dma_map_single(bp->sdev->dev, skb->data,
+ RX_PKT_BUF_SZ,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(mapping) ||
+ mapping + RX_PKT_BUF_SZ > DMA_30BIT_MASK) {
+ if (!dma_mapping_error(mapping))
+- dma_unmap_single(&bp->sdev->dev, mapping, RX_PKT_BUF_SZ,DMA_FROM_DEVICE);
++ dma_unmap_single(bp->sdev->dev, mapping, RX_PKT_BUF_SZ,DMA_FROM_DEVICE);
+ dev_kfree_skb_any(skb);
+ return -ENOMEM;
+ }
+@@ -702,7 +702,7 @@
+ dest_idx * sizeof(dest_desc),
+ DMA_BIDIRECTIONAL);
+
+- dma_sync_single_for_device(&bp->sdev->dev, le32_to_cpu(src_desc->addr),
++ dma_sync_single_for_device(bp->sdev->dev, le32_to_cpu(src_desc->addr),
+ RX_PKT_BUF_SZ,
+ DMA_FROM_DEVICE);
+ }
+@@ -724,7 +724,7 @@
+ struct rx_header *rh;
+ u16 len;
+
+- dma_sync_single_for_cpu(&bp->sdev->dev, map,
++ dma_sync_single_for_cpu(bp->sdev->dev, map,
+ RX_PKT_BUF_SZ,
+ DMA_FROM_DEVICE);
+ rh = (struct rx_header *) skb->data;
+@@ -758,7 +758,7 @@
+ skb_size = b44_alloc_rx_skb(bp, cons, bp->rx_prod);
+ if (skb_size < 0)
+ goto drop_it;
+- dma_unmap_single(&bp->sdev->dev, map,
++ dma_unmap_single(bp->sdev->dev, map,
+ skb_size, DMA_FROM_DEVICE);
+ /* Leave out rx_header */
+ skb_put(skb, len+bp->rx_offset);
+@@ -931,22 +931,22 @@
+ goto err_out;
+ }
+
+- mapping = dma_map_single(&bp->sdev->dev, skb->data, len, DMA_TO_DEVICE);
++ mapping = dma_map_single(bp->sdev->dev, skb->data, len, DMA_TO_DEVICE);
+ if (dma_mapping_error(mapping) || mapping + len > DMA_30BIT_MASK) {
+ /* Chip can't handle DMA to/from >1GB, use bounce buffer */
+ if (!dma_mapping_error(mapping))
+- dma_unmap_single(&bp->sdev->dev, mapping, len, DMA_TO_DEVICE);
++ dma_unmap_single(bp->sdev->dev, mapping, len, DMA_TO_DEVICE);
+
+ bounce_skb = __dev_alloc_skb(TX_PKT_BUF_SZ,
+ GFP_ATOMIC|GFP_DMA);
+ if (!bounce_skb)
+ goto err_out;
+
+- mapping = dma_map_single(&bp->sdev->dev, bounce_skb->data,
++ mapping = dma_map_single(bp->sdev->dev, bounce_skb->data,
+ len, DMA_TO_DEVICE);
+ if (dma_mapping_error(mapping) || mapping + len > DMA_30BIT_MASK) {
+ if (!dma_mapping_error(mapping))
+- dma_unmap_single(&bp->sdev->dev, mapping,
++ dma_unmap_single(bp->sdev->dev, mapping,
+ len, DMA_TO_DEVICE);
+ dev_kfree_skb_any(bounce_skb);
+ goto err_out;
+@@ -1046,7 +1046,7 @@
+
+ if (rp->skb == NULL)
+ continue;
+- dma_unmap_single(&bp->sdev->dev,
++ dma_unmap_single(bp->sdev->dev,
+ pci_unmap_addr(rp, mapping),
+ RX_PKT_BUF_SZ,
+ DMA_FROM_DEVICE);
+@@ -1060,7 +1060,7 @@
+
+ if (rp->skb == NULL)
+ continue;
+- dma_unmap_single(&bp->sdev->dev,
++ dma_unmap_single(bp->sdev->dev,
+ pci_unmap_addr(rp, mapping),
+ rp->skb->len,
+ DMA_TO_DEVICE);
+@@ -1085,12 +1085,12 @@
+ memset(bp->tx_ring, 0, B44_TX_RING_BYTES);
+
+ if (bp->flags & B44_FLAG_RX_RING_HACK)
+- dma_sync_single_for_device(&bp->sdev->dev, bp->rx_ring_dma,
++ dma_sync_single_for_device(bp->sdev->dev, bp->rx_ring_dma,
+ DMA_TABLE_BYTES,
+ DMA_BIDIRECTIONAL);
+
+ if (bp->flags & B44_FLAG_TX_RING_HACK)
+- dma_sync_single_for_device(&bp->sdev->dev, bp->tx_ring_dma,
++ dma_sync_single_for_device(bp->sdev->dev, bp->tx_ring_dma,
+ DMA_TABLE_BYTES,
+ DMA_TO_DEVICE);
+
+@@ -1112,24 +1112,24 @@
+ bp->tx_buffers = NULL;
+ if (bp->rx_ring) {
+ if (bp->flags & B44_FLAG_RX_RING_HACK) {
+- dma_unmap_single(&bp->sdev->dev, bp->rx_ring_dma,
++ dma_unmap_single(bp->sdev->dev, bp->rx_ring_dma,
+ DMA_TABLE_BYTES,
+ DMA_BIDIRECTIONAL);
+ kfree(bp->rx_ring);
+ } else
+- dma_free_coherent(&bp->sdev->dev, DMA_TABLE_BYTES,
++ dma_free_coherent(bp->sdev->dev, DMA_TABLE_BYTES,
+ bp->rx_ring, bp->rx_ring_dma);
+ bp->rx_ring = NULL;
+ bp->flags &= ~B44_FLAG_RX_RING_HACK;
+ }
+ if (bp->tx_ring) {
+ if (bp->flags & B44_FLAG_TX_RING_HACK) {
+- dma_unmap_single(&bp->sdev->dev, bp->tx_ring_dma,
++ dma_unmap_single(bp->sdev->dev, bp->tx_ring_dma,
+ DMA_TABLE_BYTES,
+ DMA_TO_DEVICE);
+ kfree(bp->tx_ring);
+ } else
+- dma_free_coherent(&bp->sdev->dev, DMA_TABLE_BYTES,
++ dma_free_coherent(bp->sdev->dev, DMA_TABLE_BYTES,
+ bp->tx_ring, bp->tx_ring_dma);
+ bp->tx_ring = NULL;
+ bp->flags &= ~B44_FLAG_TX_RING_HACK;
+@@ -1155,7 +1155,7 @@
+ goto out_err;
+
+ size = DMA_TABLE_BYTES;
+- bp->rx_ring = dma_alloc_coherent(&bp->sdev->dev, size, &bp->rx_ring_dma, GFP_ATOMIC);
++ bp->rx_ring = dma_alloc_coherent(bp->sdev->dev, size, &bp->rx_ring_dma, GFP_ATOMIC);
+ if (!bp->rx_ring) {
+ /* Allocation may have failed due to pci_alloc_consistent
+ insisting on use of GFP_DMA, which is more restrictive
+@@ -1167,7 +1167,7 @@
+ if (!rx_ring)
+ goto out_err;
+
+- rx_ring_dma = dma_map_single(&bp->sdev->dev, rx_ring,
++ rx_ring_dma = dma_map_single(bp->sdev->dev, rx_ring,
+ DMA_TABLE_BYTES,
+ DMA_BIDIRECTIONAL);
+
+@@ -1182,7 +1182,7 @@
+ bp->flags |= B44_FLAG_RX_RING_HACK;
+ }
+
+- bp->tx_ring = dma_alloc_coherent(&bp->sdev->dev, size, &bp->tx_ring_dma, GFP_ATOMIC);
++ bp->tx_ring = dma_alloc_coherent(bp->sdev->dev, size, &bp->tx_ring_dma, GFP_ATOMIC);
+ if (!bp->tx_ring) {
+ /* Allocation may have failed due to dma_alloc_coherent
+ insisting on use of GFP_DMA, which is more restrictive
+@@ -1194,7 +1194,7 @@
+ if (!tx_ring)
+ goto out_err;
+
+- tx_ring_dma = dma_map_single(&bp->sdev->dev, tx_ring,
++ tx_ring_dma = dma_map_single(bp->sdev->dev, tx_ring,
+ DMA_TABLE_BYTES,
+ DMA_TO_DEVICE);
+
+@@ -2314,13 +2314,13 @@
+
+ dev = alloc_etherdev(sizeof(*bp));
+ if (!dev) {
+- dev_err(&sdev->dev, "Etherdev alloc failed, aborting.\n");
++ dev_err(sdev->dev, "Etherdev alloc failed, aborting.\n");
+ err = -ENOMEM;
+ goto out;
+ }
+
+ SET_MODULE_OWNER(dev);
+- SET_NETDEV_DEV(dev,&sdev->dev);
++ SET_NETDEV_DEV(dev,sdev->dev);
+
+ /* No interesting netdevice features in this card... */
+ dev->features |= 0;
+@@ -2358,7 +2358,7 @@
+
+ err = b44_get_invariants(bp);
+ if (err) {
+- dev_err(&sdev->dev,
++ dev_err(sdev->dev,
+ "Problem fetching invariants of chip, aborting.\n");
+ goto err_out_free_dev;
+ }
+@@ -2379,7 +2379,7 @@
+
+ err = register_netdev(dev);
+ if (err) {
+- dev_err(&sdev->dev, "Cannot register net device, aborting.\n");
++ dev_err(sdev->dev, "Cannot register net device, aborting.\n");
+ goto out;
+ }
+
+@@ -2458,7 +2458,6 @@
+ rc = request_irq(dev->irq, b44_interrupt, IRQF_SHARED, dev->name, dev);
+ if (rc) {
+ printk(KERN_ERR PFX "%s: request_irq failed\n", dev->name);
+- pci_disable_device(pdev);
+ return rc;
+ }
+
--- /dev/null
+Index: linux-2.6.22-rc4/drivers/usb/host/Kconfig
+===================================================================
+--- linux-2.6.22-rc4.orig/drivers/usb/host/Kconfig 2007-06-10 21:32:11.000000000 +0100
++++ linux-2.6.22-rc4/drivers/usb/host/Kconfig 2007-06-10 21:33:24.000000000 +0100
+@@ -142,6 +142,19 @@
+ Enables support for PCI-bus plug-in USB controller cards.
+ If unsure, say Y.
+
++config USB_OHCI_HCD_SSB
++ bool "OHCI support for the Broadcom SSB OHCI core (embedded systems only)"
++ depends on USB_OHCI_HCD && ((USB_OHCI_HCD=m && SSB) || (USB_OHCI_HCD=y && SSB=y)) && EXPERIMENTAL
++ default n
++ ---help---
++ Support for the Sonics Silicon Backplane (SSB) attached
++ Broadcom USB OHCI core.
++
++ This device is only present in some embedded devices with
++ Broadcom based SSB bus.
++
++ If unsure, say N.
++
+ config USB_OHCI_BIG_ENDIAN_DESC
+ bool
+ depends on USB_OHCI_HCD
+Index: linux-2.6.22-rc4/drivers/usb/host/ohci-hcd.c
+===================================================================
+--- linux-2.6.22-rc4.orig/drivers/usb/host/ohci-hcd.c 2007-06-10 21:32:11.000000000 +0100
++++ linux-2.6.22-rc4/drivers/usb/host/ohci-hcd.c 2007-06-10 21:33:24.000000000 +0100
+@@ -920,11 +920,17 @@
+ #define PS3_SYSTEM_BUS_DRIVER ps3_ohci_sb_driver
+ #endif
+
++#ifdef CONFIG_USB_OHCI_HCD_SSB
++#include "ohci-ssb.c"
++#define SSB_OHCI_DRIVER ssb_ohci_driver
++#endif
++
+ #if !defined(PCI_DRIVER) && \
+ !defined(PLATFORM_DRIVER) && \
+ !defined(OF_PLATFORM_DRIVER) && \
+ !defined(SA1111_DRIVER) && \
+- !defined(PS3_SYSTEM_BUS_DRIVER)
++ !defined(PS3_SYSTEM_BUS_DRIVER) && \
++ !defined(SSB_OHCI_DRIVER)
+ #error "missing bus glue for ohci-hcd"
+ #endif
+
+@@ -972,10 +978,20 @@
+ goto error_pci;
+ #endif
+
++#ifdef SSB_OHCI_DRIVER
++ retval = ssb_driver_register(&SSB_OHCI_DRIVER);
++ if (retval)
++ goto error_ssb;
++#endif
++
+ return retval;
+
+ /* Error path */
++#ifdef SSB_OHCI_DRIVER
++ error_ssb:
++#endif
+ #ifdef PCI_DRIVER
++ pci_unregister_driver(&PCI_DRIVER);
+ error_pci:
+ #endif
+ #ifdef SA1111_DRIVER
+@@ -1001,6 +1017,9 @@
+
+ static void __exit ohci_hcd_mod_exit(void)
+ {
++#ifdef SSB_OHCI_DRIVER
++ ssb_driver_unregister(&SSB_OHCI_DRIVER);
++#endif
+ #ifdef PCI_DRIVER
+ pci_unregister_driver(&PCI_DRIVER);
+ #endif
--- /dev/null
+Index: linux-2.6.22-rc4/drivers/ssb/driver_chipcommon.c
+===================================================================
+--- linux-2.6.22-rc4.orig/drivers/ssb/driver_chipcommon.c 2007-06-10 21:32:11.000000000 +0100
++++ linux-2.6.22-rc4/drivers/ssb/driver_chipcommon.c 2007-06-10 21:33:25.000000000 +0100
+@@ -264,6 +264,31 @@
+ ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
+ }
+
++/* TODO: These two functions are a clear candidate for merging, but one gets
++ * the processor clock, and the other gets the bus clock.
++ */
++void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc,
++ u32 *plltype, u32 *n, u32 *m)
++{
++ *n = chipco_read32(cc, SSB_CHIPCO_CLOCK_N);
++ *plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT);
++ switch (*plltype) {
++ case SSB_PLLTYPE_2:
++ case SSB_PLLTYPE_4:
++ case SSB_PLLTYPE_6:
++ case SSB_PLLTYPE_7:
++ *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_MIPS);
++ break;
++ case SSB_PLLTYPE_3:
++ /* 5350 uses m2 to control mips */
++ *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_M2);
++ break;
++ default:
++ *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_SB);
++ break;
++ }
++}
++
+ void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc,
+ u32 *plltype, u32 *n, u32 *m)
+ {
+@@ -400,3 +425,13 @@
+ return nr_ports;
+ }
+ #endif /* CONFIG_SSB_SERIAL */
++
++/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
++int
++ssb_chipco_watchdog(struct ssb_chipcommon *cc, uint ticks)
++{
++ /* instant NMI */
++ chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks);
++ return 0;
++}
++EXPORT_SYMBOL(ssb_chipco_watchdog);
+Index: linux-2.6.22-rc4/drivers/ssb/driver_mipscore.c
+===================================================================
+--- linux-2.6.22-rc4.orig/drivers/ssb/driver_mipscore.c 2007-06-10 21:32:11.000000000 +0100
++++ linux-2.6.22-rc4/drivers/ssb/driver_mipscore.c 2007-06-10 21:33:25.000000000 +0100
+@@ -4,6 +4,7 @@
+ *
+ * Copyright 2005, Broadcom Corporation
+ * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
++ * Copyright 2006, 2007, Felix Fietkau <nbd@openwrt.org>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+@@ -31,6 +32,16 @@
+ ssb_write32(mcore->dev, offset, value);
+ }
+
++static inline u32 extif_read32(struct ssb_extif *extif, u16 offset)
++{
++ return ssb_read32(extif->dev, offset);
++}
++
++static inline void extif_write32(struct ssb_extif *extif, u16 offset, u32 value)
++{
++ ssb_write32(extif->dev, offset, value);
++}
++
+ static const u32 ipsflag_irq_mask[] = {
+ 0,
+ SSB_IPSFLAG_IRQ1,
+@@ -118,9 +129,9 @@
+ }
+
+ /* XXX: leave here or move into separate extif driver? */
+-static int ssb_extif_serial_init(struct ssb_device *dev, struct ssb_serial_ports *ports)
++static int ssb_extif_serial_init(struct ssb_extif *dev, struct ssb_serial_port *ports)
+ {
+-
++ return 0;
+ }
+
+
+@@ -174,23 +185,76 @@
+ {
+ struct ssb_bus *bus = mcore->dev->bus;
+
++ mcore->flash_buswidth = 2;
+ if (bus->chipco.dev) {
+ mcore->flash_window = 0x1c000000;
+- mcore->flash_window_size = 0x800000;
++ mcore->flash_window_size = 0x02000000;
++ if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
++ & SSB_CHIPCO_CFG_DS16) == 0)
++ mcore->flash_buswidth = 1;
+ } else {
+ mcore->flash_window = 0x1fc00000;
+- mcore->flash_window_size = 0x400000;
++ mcore->flash_window_size = 0x00400000;
+ }
+ }
+
++static void ssb_extif_timing_init(struct ssb_extif *extif, u32 ns)
++{
++ u32 tmp;
++
++ /* Initialize extif so we can get to the LEDs and external UART */
++ extif_write32(extif, SSB_EXTIF_PROG_CFG, SSB_EXTCFG_EN);
++
++ /* Set timing for the flash */
++ tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT;
++ tmp |= ceildiv(40, ns) << SSB_PROG_WCNT_1_SHIFT;
++ tmp |= ceildiv(120, ns);
++ extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp);
++
++ /* Set programmable interface timing for external uart */
++ tmp = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT;
++ tmp |= ceildiv(20, ns) << SSB_PROG_WCNT_2_SHIFT;
++ tmp |= ceildiv(100, ns) << SSB_PROG_WCNT_1_SHIFT;
++ tmp |= ceildiv(120, ns);
++ extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp);
++}
+
+-static void ssb_cpu_clock(struct ssb_mipscore *mcore)
++static inline void ssb_extif_get_clockcontrol(struct ssb_extif *extif,
++ u32 *pll_type, u32 *n, u32 *m)
+ {
++ *pll_type = SSB_PLLTYPE_1;
++ *n = extif_read32(extif, SSB_EXTIF_CLOCK_N);
++ *m = extif_read32(extif, SSB_EXTIF_CLOCK_SB);
+ }
+
+-void ssb_mipscore_init(struct ssb_mipscore *mcore)
++u32 ssb_cpu_clock(struct ssb_mipscore *mcore)
+ {
+ struct ssb_bus *bus = mcore->dev->bus;
++ u32 pll_type, n, m, rate = 0;
++
++ if (bus->extif.dev) {
++ ssb_extif_get_clockcontrol(&bus->extif, &pll_type, &n, &m);
++ } else if (bus->chipco.dev) {
++ ssb_chipco_get_clockcpu(&bus->chipco, &pll_type, &n, &m);
++ } else
++ return 0;
++
++ if ((pll_type == SSB_PLLTYPE_5) || (bus->chip_id == 0x5365)) {
++ rate = 200000000;
++ } else {
++ rate = ssb_calc_clock_rate(pll_type, n, m);
++ }
++
++ if (pll_type == SSB_PLLTYPE_6) {
++ rate *= 2;
++ }
++
++ return rate;
++}
++
++void ssb_mipscore_init(struct ssb_mipscore *mcore)
++{
++ struct ssb_bus *bus;
+ struct ssb_device *dev;
+ unsigned long hz, ns;
+ unsigned int irq, i;
+@@ -198,6 +262,8 @@
+ if (!mcore->dev)
+ return; /* We don't have a MIPS core */
+
++ bus = mcore->dev->bus;
++
+ ssb_dprintk(KERN_INFO PFX "Initializing MIPS core...\n");
+
+ hz = ssb_clockspeed(bus);
+@@ -205,28 +271,9 @@
+ hz = 100000000;
+ ns = 1000000000 / hz;
+
+-//TODO
+-#if 0
+- if (have EXTIF) {
+- /* Initialize extif so we can get to the LEDs and external UART */
+- W_REG(&eir->prog_config, CF_EN);
+-
+- /* Set timing for the flash */
+- tmp = CEIL(10, ns) << FW_W3_SHIFT; /* W3 = 10nS */
+- tmp = tmp | (CEIL(40, ns) << FW_W1_SHIFT); /* W1 = 40nS */
+- tmp = tmp | CEIL(120, ns); /* W0 = 120nS */
+- W_REG(&eir->prog_waitcount, tmp); /* 0x01020a0c for a 100Mhz clock */
+-
+- /* Set programmable interface timing for external uart */
+- tmp = CEIL(10, ns) << FW_W3_SHIFT; /* W3 = 10nS */
+- tmp = tmp | (CEIL(20, ns) << FW_W2_SHIFT); /* W2 = 20nS */
+- tmp = tmp | (CEIL(100, ns) << FW_W1_SHIFT); /* W1 = 100nS */
+- tmp = tmp | CEIL(120, ns); /* W0 = 120nS */
+- W_REG(&eir->prog_waitcount, tmp);
+- }
+- else... chipcommon
+-#endif
+- if (bus->chipco.dev)
++ if (bus->extif.dev)
++ ssb_extif_timing_init(&bus->extif, ns);
++ else if (bus->chipco.dev)
+ ssb_chipco_timing_init(&bus->chipco, ns);
+
+ /* Assign IRQs to all cores on the bus, start with irq line 2, because serial usually takes 1 */
+@@ -256,3 +303,5 @@
+ ssb_mips_serial_init(mcore);
+ ssb_mips_flash_detect(mcore);
+ }
++
++EXPORT_SYMBOL(ssb_mips_irq);
+Index: linux-2.6.22-rc4/drivers/ssb/driver_pcicore.c
+===================================================================
+--- linux-2.6.22-rc4.orig/drivers/ssb/driver_pcicore.c 2007-06-10 21:32:11.000000000 +0100
++++ linux-2.6.22-rc4/drivers/ssb/driver_pcicore.c 2007-06-10 21:33:25.000000000 +0100
+@@ -93,6 +93,9 @@
+
+ /* Enable PCI bridge BAR1 prefetch and burst */
+ pci_write_config_dword(dev, SSB_BAR1_CONTROL, 3);
++
++ /* Make sure our latency is high enough to handle the devices behind us */
++ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xa8);
+ }
+ DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ssb_fixup_pcibridge);
+
+@@ -110,7 +113,7 @@
+
+ if (unlikely(pc->cardbusmode && dev > 1))
+ goto out;
+- if (bus == 0) {
++ if (bus == 0) {//FIXME busnumber ok?
+ /* Type 0 transaction */
+ if (unlikely(dev >= SSB_PCI_SLOT_MAX))
+ goto out;
+@@ -224,7 +227,7 @@
+ val = *((const u32 *)buf);
+ break;
+ }
+- writel(*((const u32 *)buf), mmio);
++ writel(val, mmio);
+
+ err = 0;
+ unmap:
+@@ -307,6 +310,8 @@
+ udelay(150);
+ val |= SSB_PCICORE_CTL_RST; /* Deassert RST# */
+ pcicore_write32(pc, SSB_PCICORE_CTL, val);
++ val = SSB_PCICORE_ARBCTL_INTERN;
++ pcicore_write32(pc, SSB_PCICORE_ARBCTL, val);
+ udelay(1);
+
+ //TODO cardbus mode
+@@ -336,6 +341,7 @@
+ * The following needs change, if we want to port hostmode
+ * to non-MIPS platform. */
+ set_io_port_base((unsigned long)ioremap_nocache(SSB_PCI_MEM, 0x04000000));
++ mdelay(300);
+ register_pci_controller(&ssb_pcicore_controller);
+ }
+
+Index: linux-2.6.22-rc4/include/linux/ssb/ssb_driver_chipcommon.h
+===================================================================
+--- linux-2.6.22-rc4.orig/include/linux/ssb/ssb_driver_chipcommon.h 2007-06-10 21:32:11.000000000 +0100
++++ linux-2.6.22-rc4/include/linux/ssb/ssb_driver_chipcommon.h 2007-06-10 21:33:25.000000000 +0100
+@@ -364,6 +364,8 @@
+ extern void ssb_chipco_suspend(struct ssb_chipcommon *cc, pm_message_t state);
+ extern void ssb_chipco_resume(struct ssb_chipcommon *cc);
+
++extern void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc,
++ u32 *plltype, u32 *n, u32 *m);
+ extern void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc,
+ u32 *plltype, u32 *n, u32 *m);
+ extern void ssb_chipco_timing_init(struct ssb_chipcommon *cc,
+@@ -378,6 +380,46 @@
+ extern void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc,
+ enum ssb_clkmode mode);
+
++/* GPIO functions */
++static inline u32 ssb_chipco_gpio_in(struct ssb_chipcommon *cc,
++ u32 mask)
++{
++ return ssb_read32(cc->dev, SSB_CHIPCO_GPIOIN) & mask;
++}
++
++static inline u32 ssb_chipco_gpio_out(struct ssb_chipcommon *cc,
++ u32 mask, u32 value)
++{
++ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOOUT, mask, value);
++}
++
++static inline u32 ssb_chipco_gpio_outen(struct ssb_chipcommon *cc,
++ u32 mask, u32 value)
++{
++ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOOUTEN, mask, value);
++}
++
++static inline u32 ssb_chipco_gpio_control(struct ssb_chipcommon *cc,
++ u32 mask, u32 value)
++{
++ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOCTL, mask, value);
++}
++
++static inline u32 ssb_chipco_gpio_intmask(struct ssb_chipcommon *cc,
++ u32 mask, u32 value)
++{
++ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOIRQ, mask, value);
++}
++
++static inline u32 ssb_chipco_gpio_polarity(struct ssb_chipcommon *cc,
++ u32 mask, u32 value)
++{
++ return ssb_write32_masked(cc->dev, SSB_CHIPCO_GPIOPOL, mask, value);
++}
++/* TODO: GPIO reservation */
++
++extern int ssb_chipco_watchdog(struct ssb_chipcommon *cc, uint ticks);
++
+ #ifdef CONFIG_SSB_SERIAL
+ extern int ssb_chipco_serial_init(struct ssb_chipcommon *cc,
+ struct ssb_serial_port *ports);
+Index: linux-2.6.22-rc4/include/linux/ssb/ssb_driver_extif.h
+===================================================================
+--- linux-2.6.22-rc4.orig/include/linux/ssb/ssb_driver_extif.h 2007-06-10 21:32:11.000000000 +0100
++++ linux-2.6.22-rc4/include/linux/ssb/ssb_driver_extif.h 2007-06-10 21:33:25.000000000 +0100
+@@ -158,6 +158,36 @@
+ /* watchdog */
+ #define SSB_EXTIF_WATCHDOG_CLK 48000000 /* Hz */
+
++/* GPIO functions */
++static inline u32 ssb_extif_gpio_in(struct ssb_extif *extif,
++ u32 mask)
++{
++ return ssb_read32(extif->dev, SSB_EXTIF_GPIO_IN) & mask;
++}
++
++static inline u32 ssb_extif_gpio_out(struct ssb_extif *extif,
++ u32 mask, u32 value)
++{
++ return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_OUT(0), mask, value);
++}
++
++static inline u32 ssb_extif_gpio_outen(struct ssb_extif *extif,
++ u32 mask, u32 value)
++{
++ return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_OUTEN(0), mask, value);
++}
++
++static inline u32 ssb_extif_gpio_polarity(struct ssb_extif *extif,
++ u32 mask, u32 value)
++{
++ return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_INTPOL, mask, value);
++}
++
++static inline u32 ssb_extif_gpio_intmask(struct ssb_extif *extif,
++ u32 mask, u32 value)
++{
++ return ssb_write32_masked(extif->dev, SSB_EXTIF_GPIO_INTMASK, mask, value);
++}
+
+ #endif /* __KERNEL__ */
+ #endif /* LINUX_SSB_EXTIFCORE_H_ */
+Index: linux-2.6.22-rc4/include/linux/ssb/ssb_driver_mips.h
+===================================================================
+--- linux-2.6.22-rc4.orig/include/linux/ssb/ssb_driver_mips.h 2007-06-10 21:32:11.000000000 +0100
++++ linux-2.6.22-rc4/include/linux/ssb/ssb_driver_mips.h 2007-06-10 21:33:25.000000000 +0100
+@@ -22,11 +22,13 @@
+ int nr_serial_ports;
+ struct ssb_serial_port serial_ports[4];
+
++ int flash_buswidth;
+ u32 flash_window;
+ u32 flash_window_size;
+ };
+
+ extern void ssb_mipscore_init(struct ssb_mipscore *mcore);
++extern u32 ssb_cpu_clock(struct ssb_mipscore *mcore);
+
+ extern unsigned int ssb_mips_irq(struct ssb_device *dev);
+
+Index: linux-2.6.22-rc4/include/linux/ssb/ssb.h
+===================================================================
+--- linux-2.6.22-rc4.orig/include/linux/ssb/ssb.h 2007-06-10 21:32:11.000000000 +0100
++++ linux-2.6.22-rc4/include/linux/ssb/ssb.h 2007-06-10 21:33:25.000000000 +0100
+@@ -263,6 +263,12 @@
+ #define SSB_CHIPPACK_BCM4712M 2 /* Medium 225pin 4712 */
+ #define SSB_CHIPPACK_BCM4712L 0 /* Large 340pin 4712 */
+
++static inline u16 ssb_read16(struct ssb_device *dev, u16 offset);
++static inline u32 ssb_read32(struct ssb_device *dev, u16 offset);
++static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value);
++static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value);
++static inline u32 ssb_write32_masked(struct ssb_device *dev, u16 offset, u32 mask, u32 value);
++
+ #include <linux/ssb/ssb_driver_chipcommon.h>
+ #include <linux/ssb/ssb_driver_mips.h>
+ #include <linux/ssb/ssb_driver_extif.h>
+@@ -369,6 +375,16 @@
+ dev->ops->write32(dev, offset, value);
+ }
+
++static inline u32 ssb_write32_masked(struct ssb_device *dev,
++ u16 offset,
++ u32 mask,
++ u32 value)
++{
++ value &= mask;
++ value |= ssb_read32(dev, offset) & ~mask;
++ ssb_write32(dev, offset, value);
++ return value;
++}
+
+ /* Translation (routing) bits that need to be ORed to DMA
+ * addresses before they are given to a device. */
projects / openwrt / openwrt.git / commitdiff