--- /dev/null
+/**************************************************************************
+ *
+ * BRIEF MODULE DESCRIPTION
+ * PCI init for Ralink RT2880 solution
+ *
+ * Copyright 2007 Ralink Inc. (bruce_chang@ralinktech.com.tw)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ **************************************************************************
+ * May 2007 Bruce Chang
+ * Initial Release
+ *
+ * May 2009 Bruce Chang
+ * support RT2880/RT3883 PCIe
+ *
+ * May 2011 Bruce Chang
+ * support RT6855/MT7620 PCIe
+ *
+ **************************************************************************
+ */
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/version.h>
+#include <asm/pci.h>
+#include <asm/io.h>
+#include <asm/mips-cm.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/of.h>
+#include <linux/of_pci.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+
+#include <ralink_regs.h>
+
+extern void pcie_phy_init(void);
+extern void chk_phy_pll(void);
+
+/*
+ * These functions and structures provide the BIOS scan and mapping of the PCI
+ * devices.
+ */
+
+#define CONFIG_PCIE_PORT0
+#define CONFIG_PCIE_PORT1
+#define CONFIG_PCIE_PORT2
+#define RALINK_PCIE0_CLK_EN (1<<24)
+#define RALINK_PCIE1_CLK_EN (1<<25)
+#define RALINK_PCIE2_CLK_EN (1<<26)
+
+#define RALINK_PCI_CONFIG_ADDR 0x20
+#define RALINK_PCI_CONFIG_DATA_VIRTUAL_REG 0x24
+#define RALINK_INT_PCIE0 pcie_irq[0]
+#define RALINK_INT_PCIE1 pcie_irq[1]
+#define RALINK_INT_PCIE2 pcie_irq[2]
+#define RALINK_PCI_MEMBASE *(volatile u32 *)(RALINK_PCI_BASE + 0x0028)
+#define RALINK_PCI_IOBASE *(volatile u32 *)(RALINK_PCI_BASE + 0x002C)
+#define RALINK_PCIE0_RST (1<<24)
+#define RALINK_PCIE1_RST (1<<25)
+#define RALINK_PCIE2_RST (1<<26)
+#define RALINK_SYSCTL_BASE 0xBE000000
+
+#define RALINK_PCI_PCICFG_ADDR *(volatile u32 *)(RALINK_PCI_BASE + 0x0000)
+#define RALINK_PCI_PCIMSK_ADDR *(volatile u32 *)(RALINK_PCI_BASE + 0x000C)
+#define RALINK_PCI_BASE 0xBE140000
+
+#define RALINK_PCIEPHY_P0P1_CTL_OFFSET (RALINK_PCI_BASE + 0x9000)
+#define RT6855_PCIE0_OFFSET 0x2000
+#define RT6855_PCIE1_OFFSET 0x3000
+#define RT6855_PCIE2_OFFSET 0x4000
+
+#define RALINK_PCI0_BAR0SETUP_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0010)
+#define RALINK_PCI0_IMBASEBAR0_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0018)
+#define RALINK_PCI0_ID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0030)
+#define RALINK_PCI0_CLASS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0034)
+#define RALINK_PCI0_SUBID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0038)
+#define RALINK_PCI0_STATUS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0050)
+#define RALINK_PCI0_DERR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0060)
+#define RALINK_PCI0_ECRC *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0064)
+
+#define RALINK_PCI1_BAR0SETUP_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0010)
+#define RALINK_PCI1_IMBASEBAR0_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0018)
+#define RALINK_PCI1_ID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0030)
+#define RALINK_PCI1_CLASS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0034)
+#define RALINK_PCI1_SUBID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0038)
+#define RALINK_PCI1_STATUS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0050)
+#define RALINK_PCI1_DERR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0060)
+#define RALINK_PCI1_ECRC *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0064)
+
+#define RALINK_PCI2_BAR0SETUP_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0010)
+#define RALINK_PCI2_IMBASEBAR0_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0018)
+#define RALINK_PCI2_ID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0030)
+#define RALINK_PCI2_CLASS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0034)
+#define RALINK_PCI2_SUBID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0038)
+#define RALINK_PCI2_STATUS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0050)
+#define RALINK_PCI2_DERR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0060)
+#define RALINK_PCI2_ECRC *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0064)
+
+#define RALINK_PCIEPHY_P0P1_CTL_OFFSET (RALINK_PCI_BASE + 0x9000)
+#define RALINK_PCIEPHY_P2_CTL_OFFSET (RALINK_PCI_BASE + 0xA000)
+
+
+#define MV_WRITE(ofs, data) \
+ *(volatile u32 *)(RALINK_PCI_BASE+(ofs)) = cpu_to_le32(data)
+#define MV_READ(ofs, data) \
+ *(data) = le32_to_cpu(*(volatile u32 *)(RALINK_PCI_BASE+(ofs)))
+#define MV_READ_DATA(ofs) \
+ le32_to_cpu(*(volatile u32 *)(RALINK_PCI_BASE+(ofs)))
+
+#define MV_WRITE_16(ofs, data) \
+ *(volatile u16 *)(RALINK_PCI_BASE+(ofs)) = cpu_to_le16(data)
+#define MV_READ_16(ofs, data) \
+ *(data) = le16_to_cpu(*(volatile u16 *)(RALINK_PCI_BASE+(ofs)))
+
+#define MV_WRITE_8(ofs, data) \
+ *(volatile u8 *)(RALINK_PCI_BASE+(ofs)) = data
+#define MV_READ_8(ofs, data) \
+ *(data) = *(volatile u8 *)(RALINK_PCI_BASE+(ofs))
+
+
+
+#define RALINK_PCI_MM_MAP_BASE 0x60000000
+#define RALINK_PCI_IO_MAP_BASE 0x1e160000
+
+#define RALINK_SYSTEM_CONTROL_BASE 0xbe000000
+#define GPIO_PERST
+#define ASSERT_SYSRST_PCIE(val) do { \
+ if (*(unsigned int *)(0xbe00000c) == 0x00030101) \
+ RALINK_RSTCTRL |= val; \
+ else \
+ RALINK_RSTCTRL &= ~val; \
+ } while(0)
+#define DEASSERT_SYSRST_PCIE(val) do { \
+ if (*(unsigned int *)(0xbe00000c) == 0x00030101) \
+ RALINK_RSTCTRL &= ~val; \
+ else \
+ RALINK_RSTCTRL |= val; \
+ } while(0)
+#define RALINK_SYSCFG1 *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x14)
+#define RALINK_CLKCFG1 *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x30)
+#define RALINK_RSTCTRL *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x34)
+#define RALINK_GPIOMODE *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x60)
+#define RALINK_PCIE_CLK_GEN *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x7c)
+#define RALINK_PCIE_CLK_GEN1 *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x80)
+#define PPLL_CFG1 *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x9c)
+#define PPLL_DRV *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0xa0)
+//RALINK_SYSCFG1 bit
+#define RALINK_PCI_HOST_MODE_EN (1<<7)
+#define RALINK_PCIE_RC_MODE_EN (1<<8)
+//RALINK_RSTCTRL bit
+#define RALINK_PCIE_RST (1<<23)
+#define RALINK_PCI_RST (1<<24)
+//RALINK_CLKCFG1 bit
+#define RALINK_PCI_CLK_EN (1<<19)
+#define RALINK_PCIE_CLK_EN (1<<21)
+//RALINK_GPIOMODE bit
+#define PCI_SLOTx2 (1<<11)
+#define PCI_SLOTx1 (2<<11)
+//MTK PCIE PLL bit
+#define PDRV_SW_SET (1<<31)
+#define LC_CKDRVPD_ (1<<19)
+
+#define MEMORY_BASE 0x0
+static int pcie_link_status = 0;
+
+#define PCI_ACCESS_READ_1 0
+#define PCI_ACCESS_READ_2 1
+#define PCI_ACCESS_READ_4 2
+#define PCI_ACCESS_WRITE_1 3
+#define PCI_ACCESS_WRITE_2 4
+#define PCI_ACCESS_WRITE_4 5
+
+static int pcie_irq[3];
+
+static int config_access(unsigned char access_type, struct pci_bus *bus,
+ unsigned int devfn, unsigned int where, u32 * data)
+{
+ unsigned int slot = PCI_SLOT(devfn);
+ u8 func = PCI_FUNC(devfn);
+ uint32_t address_reg, data_reg;
+ unsigned int address;
+
+ address_reg = RALINK_PCI_CONFIG_ADDR;
+ data_reg = RALINK_PCI_CONFIG_DATA_VIRTUAL_REG;
+
+ address = (((where&0xF00)>>8)<<24) |(bus->number << 16) | (slot << 11) | (func << 8) | (where & 0xfc) | 0x80000000;
+ MV_WRITE(address_reg, address);
+
+ switch(access_type) {
+ case PCI_ACCESS_WRITE_1:
+ MV_WRITE_8(data_reg+(where&0x3), *data);
+ break;
+ case PCI_ACCESS_WRITE_2:
+ MV_WRITE_16(data_reg+(where&0x3), *data);
+ break;
+ case PCI_ACCESS_WRITE_4:
+ MV_WRITE(data_reg, *data);
+ break;
+ case PCI_ACCESS_READ_1:
+ MV_READ_8( data_reg+(where&0x3), data);
+ break;
+ case PCI_ACCESS_READ_2:
+ MV_READ_16(data_reg+(where&0x3), data);
+ break;
+ case PCI_ACCESS_READ_4:
+ MV_READ(data_reg, data);
+ break;
+ default:
+ printk("no specify access type\n");
+ break;
+ }
+ return 0;
+}
+
+static int
+read_config_byte(struct pci_bus *bus, unsigned int devfn, int where, u8 * val)
+{
+ return config_access(PCI_ACCESS_READ_1, bus, devfn, (unsigned int)where, (u32 *)val);
+}
+
+static int
+read_config_word(struct pci_bus *bus, unsigned int devfn, int where, u16 * val)
+{
+ return config_access(PCI_ACCESS_READ_2, bus, devfn, (unsigned int)where, (u32 *)val);
+}
+
+static int
+read_config_dword(struct pci_bus *bus, unsigned int devfn, int where, u32 * val)
+{
+ return config_access(PCI_ACCESS_READ_4, bus, devfn, (unsigned int)where, (u32 *)val);
+}
+
+static int
+write_config_byte(struct pci_bus *bus, unsigned int devfn, int where, u8 val)
+{
+ if (config_access(PCI_ACCESS_WRITE_1, bus, devfn, (unsigned int)where, (u32 *)&val))
+ return -1;
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static int
+write_config_word(struct pci_bus *bus, unsigned int devfn, int where, u16 val)
+{
+ if (config_access(PCI_ACCESS_WRITE_2, bus, devfn, where, (u32 *)&val))
+ return -1;
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+static int
+write_config_dword(struct pci_bus *bus, unsigned int devfn, int where, u32 val)
+{
+ if (config_access(PCI_ACCESS_WRITE_4, bus, devfn, where, &val))
+ return -1;
+
+ return PCIBIOS_SUCCESSFUL;
+}
+
+
+static int
+pci_config_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 * val)
+{
+ switch (size) {
+ case 1:
+ return read_config_byte(bus, devfn, where, (u8 *) val);
+ case 2:
+ return read_config_word(bus, devfn, where, (u16 *) val);
+ default:
+ return read_config_dword(bus, devfn, where, val);
+ }
+}
+
+static int
+pci_config_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val)
+{
+ switch (size) {
+ case 1:
+ return write_config_byte(bus, devfn, where, (u8) val);
+ case 2:
+ return write_config_word(bus, devfn, where, (u16) val);
+ default:
+ return write_config_dword(bus, devfn, where, val);
+ }
+}
+
+struct pci_ops mt7621_pci_ops= {
+ .read = pci_config_read,
+ .write = pci_config_write,
+};
+
+static struct resource mt7621_res_pci_mem1 = {
+ .name = "PCI MEM1",
+ .start = RALINK_PCI_MM_MAP_BASE,
+ .end = (u32)((RALINK_PCI_MM_MAP_BASE + (unsigned char *)0x0fffffff)),
+ .flags = IORESOURCE_MEM,
+};
+static struct resource mt7621_res_pci_io1 = {
+ .name = "PCI I/O1",
+ .start = RALINK_PCI_IO_MAP_BASE,
+ .end = (u32)((RALINK_PCI_IO_MAP_BASE + (unsigned char *)0x0ffff)),
+ .flags = IORESOURCE_IO,
+};
+
+static struct pci_controller mt7621_controller = {
+ .pci_ops = &mt7621_pci_ops,
+ .mem_resource = &mt7621_res_pci_mem1,
+ .io_resource = &mt7621_res_pci_io1,
+ .mem_offset = 0x00000000UL,
+ .io_offset = 0x00000000UL,
+ .io_map_base = 0xa0000000,
+};
+
+static void
+read_config(unsigned long bus, unsigned long dev, unsigned long func, unsigned long reg, unsigned long *val)
+{
+ unsigned int address_reg, data_reg, address;
+
+ address_reg = RALINK_PCI_CONFIG_ADDR;
+ data_reg = RALINK_PCI_CONFIG_DATA_VIRTUAL_REG;
+ address = (((reg & 0xF00)>>8)<<24) | (bus << 16) | (dev << 11) | (func << 8) | (reg & 0xfc) | 0x80000000 ;
+ MV_WRITE(address_reg, address);
+ MV_READ(data_reg, val);
+ return;
+}
+
+static void
+write_config(unsigned long bus, unsigned long dev, unsigned long func, unsigned long reg, unsigned long val)
+{
+ unsigned int address_reg, data_reg, address;
+
+ address_reg = RALINK_PCI_CONFIG_ADDR;
+ data_reg = RALINK_PCI_CONFIG_DATA_VIRTUAL_REG;
+ address = (((reg & 0xF00)>>8)<<24) | (bus << 16) | (dev << 11) | (func << 8) | (reg & 0xfc) | 0x80000000 ;
+ MV_WRITE(address_reg, address);
+ MV_WRITE(data_reg, val);
+ return;
+}
+
+
+int
+pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ u16 cmd;
+ u32 val;
+ int irq = 0;
+
+ if ((dev->bus->number == 0) && (slot == 0)) {
+ write_config(0, 0, 0, PCI_BASE_ADDRESS_0, MEMORY_BASE);
+ read_config(0, 0, 0, PCI_BASE_ADDRESS_0, (unsigned long *)&val);
+ printk("BAR0 at slot 0 = %x\n", val);
+ printk("bus=0x%x, slot = 0x%x\n",dev->bus->number, slot);
+ } else if((dev->bus->number == 0) && (slot == 0x1)) {
+ write_config(0, 1, 0, PCI_BASE_ADDRESS_0, MEMORY_BASE);
+ read_config(0, 1, 0, PCI_BASE_ADDRESS_0, (unsigned long *)&val);
+ printk("BAR0 at slot 1 = %x\n", val);
+ printk("bus=0x%x, slot = 0x%x\n",dev->bus->number, slot);
+ } else if((dev->bus->number == 0) && (slot == 0x2)) {
+ write_config(0, 2, 0, PCI_BASE_ADDRESS_0, MEMORY_BASE);
+ read_config(0, 2, 0, PCI_BASE_ADDRESS_0, (unsigned long *)&val);
+ printk("BAR0 at slot 2 = %x\n", val);
+ printk("bus=0x%x, slot = 0x%x\n",dev->bus->number, slot);
+ } else if ((dev->bus->number == 1) && (slot == 0x0)) {
+ switch (pcie_link_status) {
+ case 2:
+ case 6:
+ irq = RALINK_INT_PCIE1;
+ break;
+ case 4:
+ irq = RALINK_INT_PCIE2;
+ break;
+ default:
+ irq = RALINK_INT_PCIE0;
+ }
+ printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq);
+ } else if ((dev->bus->number == 2) && (slot == 0x0)) {
+ switch (pcie_link_status) {
+ case 5:
+ case 6:
+ irq = RALINK_INT_PCIE2;
+ break;
+ default:
+ irq = RALINK_INT_PCIE1;
+ }
+ printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq);
+ } else if ((dev->bus->number == 2) && (slot == 0x1)) {
+ switch (pcie_link_status) {
+ case 5:
+ case 6:
+ irq = RALINK_INT_PCIE2;
+ break;
+ default:
+ irq = RALINK_INT_PCIE1;
+ }
+ printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq);
+ } else if ((dev->bus->number ==3) && (slot == 0x0)) {
+ irq = RALINK_INT_PCIE2;
+ printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq);
+ } else if ((dev->bus->number ==3) && (slot == 0x1)) {
+ irq = RALINK_INT_PCIE2;
+ printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq);
+ } else if ((dev->bus->number ==3) && (slot == 0x2)) {
+ irq = RALINK_INT_PCIE2;
+ printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq);
+ } else {
+ printk("bus=0x%x, slot = 0x%x\n",dev->bus->number, slot);
+ return 0;
+ }
+
+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 0x14); //configure cache line size 0x14
+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xFF); //configure latency timer 0x10
+ pci_read_config_word(dev, PCI_COMMAND, &cmd);
+ cmd = cmd | PCI_COMMAND_MASTER | PCI_COMMAND_IO | PCI_COMMAND_MEMORY;
+ pci_write_config_word(dev, PCI_COMMAND, cmd);
+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
+ return irq;
+}
+
+void
+set_pcie_phy(u32 *addr, int start_b, int bits, int val)
+{
+// printk("0x%p:", addr);
+// printk(" %x", *addr);
+ *(unsigned int *)(addr) &= ~(((1<<bits) - 1)<<start_b);
+ *(unsigned int *)(addr) |= val << start_b;
+// printk(" -> %x\n", *addr);
+}
+
+void
+bypass_pipe_rst(void)
+{
+#if defined (CONFIG_PCIE_PORT0)
+ /* PCIe Port 0 */
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x02c), 12, 1, 0x01); // rg_pe1_pipe_rst_b
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x02c), 4, 1, 0x01); // rg_pe1_pipe_cmd_frc[4]
+#endif
+#if defined (CONFIG_PCIE_PORT1)
+ /* PCIe Port 1 */
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x12c), 12, 1, 0x01); // rg_pe1_pipe_rst_b
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x12c), 4, 1, 0x01); // rg_pe1_pipe_cmd_frc[4]
+#endif
+#if defined (CONFIG_PCIE_PORT2)
+ /* PCIe Port 2 */
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x02c), 12, 1, 0x01); // rg_pe1_pipe_rst_b
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x02c), 4, 1, 0x01); // rg_pe1_pipe_cmd_frc[4]
+#endif
+}
+
+void
+set_phy_for_ssc(void)
+{
+ unsigned long reg = (*(volatile u32 *)(RALINK_SYSCTL_BASE + 0x10));
+
+ reg = (reg >> 6) & 0x7;
+#if defined (CONFIG_PCIE_PORT0) || defined (CONFIG_PCIE_PORT1)
+ /* Set PCIe Port0 & Port1 PHY to disable SSC */
+ /* Debug Xtal Type */
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x400), 8, 1, 0x01); // rg_pe1_frc_h_xtal_type
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x400), 9, 2, 0x00); // rg_pe1_h_xtal_type
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x000), 4, 1, 0x01); // rg_pe1_frc_phy_en //Force Port 0 enable control
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 4, 1, 0x01); // rg_pe1_frc_phy_en //Force Port 1 enable control
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x000), 5, 1, 0x00); // rg_pe1_phy_en //Port 0 disable
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 5, 1, 0x00); // rg_pe1_phy_en //Port 1 disable
+ if(reg <= 5 && reg >= 3) { // 40MHz Xtal
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 6, 2, 0x01); // RG_PE1_H_PLL_PREDIV //Pre-divider ratio (for host mode)
+ printk("***** Xtal 40MHz *****\n");
+ } else { // 25MHz | 20MHz Xtal
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 6, 2, 0x00); // RG_PE1_H_PLL_PREDIV //Pre-divider ratio (for host mode)
+ if (reg >= 6) {
+ printk("***** Xtal 25MHz *****\n");
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4bc), 4, 2, 0x01); // RG_PE1_H_PLL_FBKSEL //Feedback clock select
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x49c), 0,31, 0x18000000); // RG_PE1_H_LCDDS_PCW_NCPO //DDS NCPO PCW (for host mode)
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4a4), 0,16, 0x18d); // RG_PE1_H_LCDDS_SSC_PRD //DDS SSC dither period control
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4a8), 0,12, 0x4a); // RG_PE1_H_LCDDS_SSC_DELTA //DDS SSC dither amplitude control
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4a8), 16,12, 0x4a); // RG_PE1_H_LCDDS_SSC_DELTA1 //DDS SSC dither amplitude control for initial
+ } else {
+ printk("***** Xtal 20MHz *****\n");
+ }
+ }
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4a0), 5, 1, 0x01); // RG_PE1_LCDDS_CLK_PH_INV //DDS clock inversion
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 22, 2, 0x02); // RG_PE1_H_PLL_BC
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 18, 4, 0x06); // RG_PE1_H_PLL_BP
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 12, 4, 0x02); // RG_PE1_H_PLL_IR
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 8, 4, 0x01); // RG_PE1_H_PLL_IC
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4ac), 16, 3, 0x00); // RG_PE1_H_PLL_BR
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 1, 3, 0x02); // RG_PE1_PLL_DIVEN
+ if(reg <= 5 && reg >= 3) { // 40MHz Xtal
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x414), 6, 2, 0x01); // rg_pe1_mstckdiv //value of da_pe1_mstckdiv when force mode enable
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x414), 5, 1, 0x01); // rg_pe1_frc_mstckdiv //force mode enable of da_pe1_mstckdiv
+ }
+ /* Enable PHY and disable force mode */
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x000), 5, 1, 0x01); // rg_pe1_phy_en //Port 0 enable
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 5, 1, 0x01); // rg_pe1_phy_en //Port 1 enable
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x000), 4, 1, 0x00); // rg_pe1_frc_phy_en //Force Port 0 disable control
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 4, 1, 0x00); // rg_pe1_frc_phy_en //Force Port 1 disable control
+#endif
+#if defined (CONFIG_PCIE_PORT2)
+ /* Set PCIe Port2 PHY to disable SSC */
+ /* Debug Xtal Type */
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x400), 8, 1, 0x01); // rg_pe1_frc_h_xtal_type
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x400), 9, 2, 0x00); // rg_pe1_h_xtal_type
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 4, 1, 0x01); // rg_pe1_frc_phy_en //Force Port 0 enable control
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 5, 1, 0x00); // rg_pe1_phy_en //Port 0 disable
+ if(reg <= 5 && reg >= 3) { // 40MHz Xtal
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 6, 2, 0x01); // RG_PE1_H_PLL_PREDIV //Pre-divider ratio (for host mode)
+ } else { // 25MHz | 20MHz Xtal
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 6, 2, 0x00); // RG_PE1_H_PLL_PREDIV //Pre-divider ratio (for host mode)
+ if (reg >= 6) { // 25MHz Xtal
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4bc), 4, 2, 0x01); // RG_PE1_H_PLL_FBKSEL //Feedback clock select
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x49c), 0,31, 0x18000000); // RG_PE1_H_LCDDS_PCW_NCPO //DDS NCPO PCW (for host mode)
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4a4), 0,16, 0x18d); // RG_PE1_H_LCDDS_SSC_PRD //DDS SSC dither period control
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4a8), 0,12, 0x4a); // RG_PE1_H_LCDDS_SSC_DELTA //DDS SSC dither amplitude control
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4a8), 16,12, 0x4a); // RG_PE1_H_LCDDS_SSC_DELTA1 //DDS SSC dither amplitude control for initial
+ }
+ }
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4a0), 5, 1, 0x01); // RG_PE1_LCDDS_CLK_PH_INV //DDS clock inversion
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 22, 2, 0x02); // RG_PE1_H_PLL_BC
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 18, 4, 0x06); // RG_PE1_H_PLL_BP
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 12, 4, 0x02); // RG_PE1_H_PLL_IR
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 8, 4, 0x01); // RG_PE1_H_PLL_IC
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4ac), 16, 3, 0x00); // RG_PE1_H_PLL_BR
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 1, 3, 0x02); // RG_PE1_PLL_DIVEN
+ if(reg <= 5 && reg >= 3) { // 40MHz Xtal
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x414), 6, 2, 0x01); // rg_pe1_mstckdiv //value of da_pe1_mstckdiv when force mode enable
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x414), 5, 1, 0x01); // rg_pe1_frc_mstckdiv //force mode enable of da_pe1_mstckdiv
+ }
+ /* Enable PHY and disable force mode */
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 5, 1, 0x01); // rg_pe1_phy_en //Port 0 enable
+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 4, 1, 0x00); // rg_pe1_frc_phy_en //Force Port 0 disable control
+#endif
+}
+
+void setup_cm_memory_region(struct resource *mem_resource)
+{
+ resource_size_t mask;
+ if (mips_cps_numiocu(0)) {
+ /* FIXME: hardware doesn't accept mask values with 1s after
+ 0s (e.g. 0xffef), so it would be great to warn if that's
+ about to happen */
+ mask = ~(mem_resource->end - mem_resource->start);
+
+ write_gcr_reg1_base(mem_resource->start);
+ write_gcr_reg1_mask(mask | CM_GCR_REGn_MASK_CMTGT_IOCU0);
+ printk("PCI coherence region base: 0x%08lx, mask/settings: 0x%08lx\n",
+ read_gcr_reg1_base(),
+ read_gcr_reg1_mask());
+ }
+}
+
+static int mt7621_pci_probe(struct platform_device *pdev)
+{
+ unsigned long val = 0;
+ int i;
+
+ for (i = 0; i < 3; i++)
+ pcie_irq[i] = irq_of_parse_and_map(pdev->dev.of_node, i);
+
+ iomem_resource.start = 0;
+ iomem_resource.end= ~0;
+ ioport_resource.start= 0;
+ ioport_resource.end = ~0;
+
+#if defined (CONFIG_PCIE_PORT0)
+ val = RALINK_PCIE0_RST;
+#endif
+#if defined (CONFIG_PCIE_PORT1)
+ val |= RALINK_PCIE1_RST;
+#endif
+#if defined (CONFIG_PCIE_PORT2)
+ val |= RALINK_PCIE2_RST;
+#endif
+ ASSERT_SYSRST_PCIE(RALINK_PCIE0_RST | RALINK_PCIE1_RST | RALINK_PCIE2_RST);
+ printk("pull PCIe RST: RALINK_RSTCTRL = %x\n", RALINK_RSTCTRL);
+#if defined GPIO_PERST /* add GPIO control instead of PERST_N */ /*chhung*/
+ *(unsigned int *)(0xbe000060) &= ~(0x3<<10 | 0x3<<3);
+ *(unsigned int *)(0xbe000060) |= 0x1<<10 | 0x1<<3;
+ mdelay(100);
+ *(unsigned int *)(0xbe000600) |= 0x1<<19 | 0x1<<8 | 0x1<<7; // use GPIO19/GPIO8/GPIO7 (PERST_N/UART_RXD3/UART_TXD3)
+ mdelay(100);
+ *(unsigned int *)(0xbe000620) &= ~(0x1<<19 | 0x1<<8 | 0x1<<7); // clear DATA
+
+ mdelay(100);
+#else
+ *(unsigned int *)(0xbe000060) &= ~0x00000c00;
+#endif
+#if defined (CONFIG_PCIE_PORT0)
+ val = RALINK_PCIE0_RST;
+#endif
+#if defined (CONFIG_PCIE_PORT1)
+ val |= RALINK_PCIE1_RST;
+#endif
+#if defined (CONFIG_PCIE_PORT2)
+ val |= RALINK_PCIE2_RST;
+#endif
+ DEASSERT_SYSRST_PCIE(val);
+ printk("release PCIe RST: RALINK_RSTCTRL = %x\n", RALINK_RSTCTRL);
+
+ if ((*(unsigned int *)(0xbe00000c)&0xFFFF) == 0x0101) // MT7621 E2
+ bypass_pipe_rst();
+ set_phy_for_ssc();
+ printk("release PCIe RST: RALINK_RSTCTRL = %x\n", RALINK_RSTCTRL);
+
+#if defined (CONFIG_PCIE_PORT0)
+ read_config(0, 0, 0, 0x70c, &val);
+ printk("Port 0 N_FTS = %x\n", (unsigned int)val);
+#endif
+#if defined (CONFIG_PCIE_PORT1)
+ read_config(0, 1, 0, 0x70c, &val);
+ printk("Port 1 N_FTS = %x\n", (unsigned int)val);
+#endif
+#if defined (CONFIG_PCIE_PORT2)
+ read_config(0, 2, 0, 0x70c, &val);
+ printk("Port 2 N_FTS = %x\n", (unsigned int)val);
+#endif
+
+ RALINK_RSTCTRL = (RALINK_RSTCTRL | RALINK_PCIE_RST);
+ RALINK_SYSCFG1 &= ~(0x30);
+ RALINK_SYSCFG1 |= (2<<4);
+ RALINK_PCIE_CLK_GEN &= 0x7fffffff;
+ RALINK_PCIE_CLK_GEN1 &= 0x80ffffff;
+ RALINK_PCIE_CLK_GEN1 |= 0xa << 24;
+ RALINK_PCIE_CLK_GEN |= 0x80000000;
+ mdelay(50);
+ RALINK_RSTCTRL = (RALINK_RSTCTRL & ~RALINK_PCIE_RST);
+
+
+#if defined GPIO_PERST /* add GPIO control instead of PERST_N */ /*chhung*/
+ *(unsigned int *)(0xbe000620) |= 0x1<<19 | 0x1<<8 | 0x1<<7; // set DATA
+ mdelay(100);
+#else
+ RALINK_PCI_PCICFG_ADDR &= ~(1<<1); //de-assert PERST
+#endif
+ mdelay(500);
+
+
+ mdelay(500);
+#if defined (CONFIG_PCIE_PORT0)
+ if(( RALINK_PCI0_STATUS & 0x1) == 0)
+ {
+ printk("PCIE0 no card, disable it(RST&CLK)\n");
+ ASSERT_SYSRST_PCIE(RALINK_PCIE0_RST);
+ RALINK_CLKCFG1 = (RALINK_CLKCFG1 & ~RALINK_PCIE0_CLK_EN);
+ pcie_link_status &= ~(1<<0);
+ } else {
+ pcie_link_status |= 1<<0;
+ RALINK_PCI_PCIMSK_ADDR |= (1<<20); // enable pcie1 interrupt
+ }
+#endif
+#if defined (CONFIG_PCIE_PORT1)
+ if(( RALINK_PCI1_STATUS & 0x1) == 0)
+ {
+ printk("PCIE1 no card, disable it(RST&CLK)\n");
+ ASSERT_SYSRST_PCIE(RALINK_PCIE1_RST);
+ RALINK_CLKCFG1 = (RALINK_CLKCFG1 & ~RALINK_PCIE1_CLK_EN);
+ pcie_link_status &= ~(1<<1);
+ } else {
+ pcie_link_status |= 1<<1;
+ RALINK_PCI_PCIMSK_ADDR |= (1<<21); // enable pcie1 interrupt
+ }
+#endif
+#if defined (CONFIG_PCIE_PORT2)
+ if (( RALINK_PCI2_STATUS & 0x1) == 0) {
+ printk("PCIE2 no card, disable it(RST&CLK)\n");
+ ASSERT_SYSRST_PCIE(RALINK_PCIE2_RST);
+ RALINK_CLKCFG1 = (RALINK_CLKCFG1 & ~RALINK_PCIE2_CLK_EN);
+ pcie_link_status &= ~(1<<2);
+ } else {
+ pcie_link_status |= 1<<2;
+ RALINK_PCI_PCIMSK_ADDR |= (1<<22); // enable pcie2 interrupt
+ }
+#endif
+ if (pcie_link_status == 0)
+ return 0;
+
+/*
+pcie(2/1/0) link status pcie2_num pcie1_num pcie0_num
+3'b000 x x x
+3'b001 x x 0
+3'b010 x 0 x
+3'b011 x 1 0
+3'b100 0 x x
+3'b101 1 x 0
+3'b110 1 0 x
+3'b111 2 1 0
+*/
+ switch(pcie_link_status) {
+ case 2:
+ RALINK_PCI_PCICFG_ADDR &= ~0x00ff0000;
+ RALINK_PCI_PCICFG_ADDR |= 0x1 << 16; //port0
+ RALINK_PCI_PCICFG_ADDR |= 0x0 << 20; //port1
+ break;
+ case 4:
+ RALINK_PCI_PCICFG_ADDR &= ~0x0fff0000;
+ RALINK_PCI_PCICFG_ADDR |= 0x1 << 16; //port0
+ RALINK_PCI_PCICFG_ADDR |= 0x2 << 20; //port1
+ RALINK_PCI_PCICFG_ADDR |= 0x0 << 24; //port2
+ break;
+ case 5:
+ RALINK_PCI_PCICFG_ADDR &= ~0x0fff0000;
+ RALINK_PCI_PCICFG_ADDR |= 0x0 << 16; //port0
+ RALINK_PCI_PCICFG_ADDR |= 0x2 << 20; //port1
+ RALINK_PCI_PCICFG_ADDR |= 0x1 << 24; //port2
+ break;
+ case 6:
+ RALINK_PCI_PCICFG_ADDR &= ~0x0fff0000;
+ RALINK_PCI_PCICFG_ADDR |= 0x2 << 16; //port0
+ RALINK_PCI_PCICFG_ADDR |= 0x0 << 20; //port1
+ RALINK_PCI_PCICFG_ADDR |= 0x1 << 24; //port2
+ break;
+ }
+ printk(" -> %x\n", RALINK_PCI_PCICFG_ADDR);
+ //printk(" RALINK_PCI_ARBCTL = %x\n", RALINK_PCI_ARBCTL);
+
+/*
+ ioport_resource.start = mt7621_res_pci_io1.start;
+ ioport_resource.end = mt7621_res_pci_io1.end;
+*/
+
+ RALINK_PCI_MEMBASE = 0xffffffff; //RALINK_PCI_MM_MAP_BASE;
+ RALINK_PCI_IOBASE = RALINK_PCI_IO_MAP_BASE;
+
+#if defined (CONFIG_PCIE_PORT0)
+ //PCIe0
+ if((pcie_link_status & 0x1) != 0) {
+ RALINK_PCI0_BAR0SETUP_ADDR = 0x7FFF0001; //open 7FFF:2G; ENABLE
+ RALINK_PCI0_IMBASEBAR0_ADDR = MEMORY_BASE;
+ RALINK_PCI0_CLASS = 0x06040001;
+ printk("PCIE0 enabled\n");
+ }
+#endif
+#if defined (CONFIG_PCIE_PORT1)
+ //PCIe1
+ if ((pcie_link_status & 0x2) != 0) {
+ RALINK_PCI1_BAR0SETUP_ADDR = 0x7FFF0001; //open 7FFF:2G; ENABLE
+ RALINK_PCI1_IMBASEBAR0_ADDR = MEMORY_BASE;
+ RALINK_PCI1_CLASS = 0x06040001;
+ printk("PCIE1 enabled\n");
+ }
+#endif
+#if defined (CONFIG_PCIE_PORT2)
+ //PCIe2
+ if ((pcie_link_status & 0x4) != 0) {
+ RALINK_PCI2_BAR0SETUP_ADDR = 0x7FFF0001; //open 7FFF:2G; ENABLE
+ RALINK_PCI2_IMBASEBAR0_ADDR = MEMORY_BASE;
+ RALINK_PCI2_CLASS = 0x06040001;
+ printk("PCIE2 enabled\n");
+ }
+#endif
+
+
+ switch(pcie_link_status) {
+ case 7:
+ read_config(0, 2, 0, 0x4, &val);
+ write_config(0, 2, 0, 0x4, val|0x4);
+ // write_config(0, 1, 0, 0x4, val|0x7);
+ read_config(0, 2, 0, 0x70c, &val);
+ val &= ~(0xff)<<8;
+ val |= 0x50<<8;
+ write_config(0, 2, 0, 0x70c, val);
+ case 3:
+ case 5:
+ case 6:
+ read_config(0, 1, 0, 0x4, &val);
+ write_config(0, 1, 0, 0x4, val|0x4);
+ // write_config(0, 1, 0, 0x4, val|0x7);
+ read_config(0, 1, 0, 0x70c, &val);
+ val &= ~(0xff)<<8;
+ val |= 0x50<<8;
+ write_config(0, 1, 0, 0x70c, val);
+ default:
+ read_config(0, 0, 0, 0x4, &val);
+ write_config(0, 0, 0, 0x4, val|0x4); //bus master enable
+ // write_config(0, 0, 0, 0x4, val|0x7); //bus master enable
+ read_config(0, 0, 0, 0x70c, &val);
+ val &= ~(0xff)<<8;
+ val |= 0x50<<8;
+ write_config(0, 0, 0, 0x70c, val);
+ }
+
+ pci_load_of_ranges(&mt7621_controller, pdev->dev.of_node);
+ setup_cm_memory_region(mt7621_controller.mem_resource);
+ register_pci_controller(&mt7621_controller);
+ return 0;
+
+}
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ return 0;
+}
+
+static const struct of_device_id mt7621_pci_ids[] = {
+ { .compatible = "mediatek,mt7621-pci" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mt7621_pci_ids);
+
+static struct platform_driver mt7621_pci_driver = {
+ .probe = mt7621_pci_probe,
+ .driver = {
+ .name = "mt7621-pci",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(mt7621_pci_ids),
+ },
+};
+
+static int __init mt7621_pci_init(void)
+{
+ return platform_driver_register(&mt7621_pci_driver);
+}
+
+arch_initcall(mt7621_pci_init);
Signed-off-by: John Crispin <blogic@openwrt.org>
---
arch/mips/pci/Makefile | 1 +
- arch/mips/pci/pci-mt7621.c | 813 ++++++++++++++++++++++++++++++++++++++++++++
- 2 files changed, 814 insertions(+)
- create mode 100644 arch/mips/pci/pci-mt7621.c
+ 1 file changed, 1 insertion(+)
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
obj-$(CONFIG_SOC_RT288X) += pci-rt2880.o
obj-$(CONFIG_SOC_RT3883) += pci-rt3883.o
obj-$(CONFIG_TANBAC_TB0219) += fixup-tb0219.o
---- /dev/null
-+++ b/arch/mips/pci/pci-mt7621.c
-@@ -0,0 +1,836 @@
-+/**************************************************************************
-+ *
-+ * BRIEF MODULE DESCRIPTION
-+ * PCI init for Ralink RT2880 solution
-+ *
-+ * Copyright 2007 Ralink Inc. (bruce_chang@ralinktech.com.tw)
-+ *
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License as published by the
-+ * Free Software Foundation; either version 2 of the License, or (at your
-+ * option) any later version.
-+ *
-+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
-+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
-+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-+ *
-+ * You should have received a copy of the GNU General Public License along
-+ * with this program; if not, write to the Free Software Foundation, Inc.,
-+ * 675 Mass Ave, Cambridge, MA 02139, USA.
-+ *
-+ *
-+ **************************************************************************
-+ * May 2007 Bruce Chang
-+ * Initial Release
-+ *
-+ * May 2009 Bruce Chang
-+ * support RT2880/RT3883 PCIe
-+ *
-+ * May 2011 Bruce Chang
-+ * support RT6855/MT7620 PCIe
-+ *
-+ **************************************************************************
-+ */
-+
-+#include <linux/types.h>
-+#include <linux/pci.h>
-+#include <linux/kernel.h>
-+#include <linux/slab.h>
-+#include <linux/version.h>
-+#include <asm/pci.h>
-+#include <asm/io.h>
-+#include <asm/mips-cm.h>
-+#include <linux/init.h>
-+#include <linux/module.h>
-+#include <linux/delay.h>
-+#include <linux/of.h>
-+#include <linux/of_pci.h>
-+#include <linux/of_irq.h>
-+#include <linux/platform_device.h>
-+
-+#include <ralink_regs.h>
-+
-+extern void pcie_phy_init(void);
-+extern void chk_phy_pll(void);
-+
-+/*
-+ * These functions and structures provide the BIOS scan and mapping of the PCI
-+ * devices.
-+ */
-+
-+#define CONFIG_PCIE_PORT0
-+#define CONFIG_PCIE_PORT1
-+#define CONFIG_PCIE_PORT2
-+#define RALINK_PCIE0_CLK_EN (1<<24)
-+#define RALINK_PCIE1_CLK_EN (1<<25)
-+#define RALINK_PCIE2_CLK_EN (1<<26)
-+
-+#define RALINK_PCI_CONFIG_ADDR 0x20
-+#define RALINK_PCI_CONFIG_DATA_VIRTUAL_REG 0x24
-+#define RALINK_INT_PCIE0 pcie_irq[0]
-+#define RALINK_INT_PCIE1 pcie_irq[1]
-+#define RALINK_INT_PCIE2 pcie_irq[2]
-+#define RALINK_PCI_MEMBASE *(volatile u32 *)(RALINK_PCI_BASE + 0x0028)
-+#define RALINK_PCI_IOBASE *(volatile u32 *)(RALINK_PCI_BASE + 0x002C)
-+#define RALINK_PCIE0_RST (1<<24)
-+#define RALINK_PCIE1_RST (1<<25)
-+#define RALINK_PCIE2_RST (1<<26)
-+#define RALINK_SYSCTL_BASE 0xBE000000
-+
-+#define RALINK_PCI_PCICFG_ADDR *(volatile u32 *)(RALINK_PCI_BASE + 0x0000)
-+#define RALINK_PCI_PCIMSK_ADDR *(volatile u32 *)(RALINK_PCI_BASE + 0x000C)
-+#define RALINK_PCI_BASE 0xBE140000
-+
-+#define RALINK_PCIEPHY_P0P1_CTL_OFFSET (RALINK_PCI_BASE + 0x9000)
-+#define RT6855_PCIE0_OFFSET 0x2000
-+#define RT6855_PCIE1_OFFSET 0x3000
-+#define RT6855_PCIE2_OFFSET 0x4000
-+
-+#define RALINK_PCI0_BAR0SETUP_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0010)
-+#define RALINK_PCI0_IMBASEBAR0_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0018)
-+#define RALINK_PCI0_ID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0030)
-+#define RALINK_PCI0_CLASS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0034)
-+#define RALINK_PCI0_SUBID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0038)
-+#define RALINK_PCI0_STATUS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0050)
-+#define RALINK_PCI0_DERR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0060)
-+#define RALINK_PCI0_ECRC *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0064)
-+
-+#define RALINK_PCI1_BAR0SETUP_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0010)
-+#define RALINK_PCI1_IMBASEBAR0_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0018)
-+#define RALINK_PCI1_ID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0030)
-+#define RALINK_PCI1_CLASS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0034)
-+#define RALINK_PCI1_SUBID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0038)
-+#define RALINK_PCI1_STATUS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0050)
-+#define RALINK_PCI1_DERR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0060)
-+#define RALINK_PCI1_ECRC *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0064)
-+
-+#define RALINK_PCI2_BAR0SETUP_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0010)
-+#define RALINK_PCI2_IMBASEBAR0_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0018)
-+#define RALINK_PCI2_ID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0030)
-+#define RALINK_PCI2_CLASS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0034)
-+#define RALINK_PCI2_SUBID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0038)
-+#define RALINK_PCI2_STATUS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0050)
-+#define RALINK_PCI2_DERR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0060)
-+#define RALINK_PCI2_ECRC *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0064)
-+
-+#define RALINK_PCIEPHY_P0P1_CTL_OFFSET (RALINK_PCI_BASE + 0x9000)
-+#define RALINK_PCIEPHY_P2_CTL_OFFSET (RALINK_PCI_BASE + 0xA000)
-+
-+
-+#define MV_WRITE(ofs, data) \
-+ *(volatile u32 *)(RALINK_PCI_BASE+(ofs)) = cpu_to_le32(data)
-+#define MV_READ(ofs, data) \
-+ *(data) = le32_to_cpu(*(volatile u32 *)(RALINK_PCI_BASE+(ofs)))
-+#define MV_READ_DATA(ofs) \
-+ le32_to_cpu(*(volatile u32 *)(RALINK_PCI_BASE+(ofs)))
-+
-+#define MV_WRITE_16(ofs, data) \
-+ *(volatile u16 *)(RALINK_PCI_BASE+(ofs)) = cpu_to_le16(data)
-+#define MV_READ_16(ofs, data) \
-+ *(data) = le16_to_cpu(*(volatile u16 *)(RALINK_PCI_BASE+(ofs)))
-+
-+#define MV_WRITE_8(ofs, data) \
-+ *(volatile u8 *)(RALINK_PCI_BASE+(ofs)) = data
-+#define MV_READ_8(ofs, data) \
-+ *(data) = *(volatile u8 *)(RALINK_PCI_BASE+(ofs))
-+
-+
-+
-+#define RALINK_PCI_MM_MAP_BASE 0x60000000
-+#define RALINK_PCI_IO_MAP_BASE 0x1e160000
-+
-+#define RALINK_SYSTEM_CONTROL_BASE 0xbe000000
-+#define GPIO_PERST
-+#define ASSERT_SYSRST_PCIE(val) do { \
-+ if (*(unsigned int *)(0xbe00000c) == 0x00030101) \
-+ RALINK_RSTCTRL |= val; \
-+ else \
-+ RALINK_RSTCTRL &= ~val; \
-+ } while(0)
-+#define DEASSERT_SYSRST_PCIE(val) do { \
-+ if (*(unsigned int *)(0xbe00000c) == 0x00030101) \
-+ RALINK_RSTCTRL &= ~val; \
-+ else \
-+ RALINK_RSTCTRL |= val; \
-+ } while(0)
-+#define RALINK_SYSCFG1 *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x14)
-+#define RALINK_CLKCFG1 *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x30)
-+#define RALINK_RSTCTRL *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x34)
-+#define RALINK_GPIOMODE *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x60)
-+#define RALINK_PCIE_CLK_GEN *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x7c)
-+#define RALINK_PCIE_CLK_GEN1 *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x80)
-+#define PPLL_CFG1 *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x9c)
-+#define PPLL_DRV *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0xa0)
-+//RALINK_SYSCFG1 bit
-+#define RALINK_PCI_HOST_MODE_EN (1<<7)
-+#define RALINK_PCIE_RC_MODE_EN (1<<8)
-+//RALINK_RSTCTRL bit
-+#define RALINK_PCIE_RST (1<<23)
-+#define RALINK_PCI_RST (1<<24)
-+//RALINK_CLKCFG1 bit
-+#define RALINK_PCI_CLK_EN (1<<19)
-+#define RALINK_PCIE_CLK_EN (1<<21)
-+//RALINK_GPIOMODE bit
-+#define PCI_SLOTx2 (1<<11)
-+#define PCI_SLOTx1 (2<<11)
-+//MTK PCIE PLL bit
-+#define PDRV_SW_SET (1<<31)
-+#define LC_CKDRVPD_ (1<<19)
-+
-+#define MEMORY_BASE 0x0
-+static int pcie_link_status = 0;
-+
-+#define PCI_ACCESS_READ_1 0
-+#define PCI_ACCESS_READ_2 1
-+#define PCI_ACCESS_READ_4 2
-+#define PCI_ACCESS_WRITE_1 3
-+#define PCI_ACCESS_WRITE_2 4
-+#define PCI_ACCESS_WRITE_4 5
-+
-+static int pcie_irq[3];
-+
-+static int config_access(unsigned char access_type, struct pci_bus *bus,
-+ unsigned int devfn, unsigned int where, u32 * data)
-+{
-+ unsigned int slot = PCI_SLOT(devfn);
-+ u8 func = PCI_FUNC(devfn);
-+ uint32_t address_reg, data_reg;
-+ unsigned int address;
-+
-+ address_reg = RALINK_PCI_CONFIG_ADDR;
-+ data_reg = RALINK_PCI_CONFIG_DATA_VIRTUAL_REG;
-+
-+ address = (((where&0xF00)>>8)<<24) |(bus->number << 16) | (slot << 11) | (func << 8) | (where & 0xfc) | 0x80000000;
-+ MV_WRITE(address_reg, address);
-+
-+ switch(access_type) {
-+ case PCI_ACCESS_WRITE_1:
-+ MV_WRITE_8(data_reg+(where&0x3), *data);
-+ break;
-+ case PCI_ACCESS_WRITE_2:
-+ MV_WRITE_16(data_reg+(where&0x3), *data);
-+ break;
-+ case PCI_ACCESS_WRITE_4:
-+ MV_WRITE(data_reg, *data);
-+ break;
-+ case PCI_ACCESS_READ_1:
-+ MV_READ_8( data_reg+(where&0x3), data);
-+ break;
-+ case PCI_ACCESS_READ_2:
-+ MV_READ_16(data_reg+(where&0x3), data);
-+ break;
-+ case PCI_ACCESS_READ_4:
-+ MV_READ(data_reg, data);
-+ break;
-+ default:
-+ printk("no specify access type\n");
-+ break;
-+ }
-+ return 0;
-+}
-+
-+static int
-+read_config_byte(struct pci_bus *bus, unsigned int devfn, int where, u8 * val)
-+{
-+ return config_access(PCI_ACCESS_READ_1, bus, devfn, (unsigned int)where, (u32 *)val);
-+}
-+
-+static int
-+read_config_word(struct pci_bus *bus, unsigned int devfn, int where, u16 * val)
-+{
-+ return config_access(PCI_ACCESS_READ_2, bus, devfn, (unsigned int)where, (u32 *)val);
-+}
-+
-+static int
-+read_config_dword(struct pci_bus *bus, unsigned int devfn, int where, u32 * val)
-+{
-+ return config_access(PCI_ACCESS_READ_4, bus, devfn, (unsigned int)where, (u32 *)val);
-+}
-+
-+static int
-+write_config_byte(struct pci_bus *bus, unsigned int devfn, int where, u8 val)
-+{
-+ if (config_access(PCI_ACCESS_WRITE_1, bus, devfn, (unsigned int)where, (u32 *)&val))
-+ return -1;
-+
-+ return PCIBIOS_SUCCESSFUL;
-+}
-+
-+static int
-+write_config_word(struct pci_bus *bus, unsigned int devfn, int where, u16 val)
-+{
-+ if (config_access(PCI_ACCESS_WRITE_2, bus, devfn, where, (u32 *)&val))
-+ return -1;
-+
-+ return PCIBIOS_SUCCESSFUL;
-+}
-+
-+static int
-+write_config_dword(struct pci_bus *bus, unsigned int devfn, int where, u32 val)
-+{
-+ if (config_access(PCI_ACCESS_WRITE_4, bus, devfn, where, &val))
-+ return -1;
-+
-+ return PCIBIOS_SUCCESSFUL;
-+}
-+
-+
-+static int
-+pci_config_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 * val)
-+{
-+ switch (size) {
-+ case 1:
-+ return read_config_byte(bus, devfn, where, (u8 *) val);
-+ case 2:
-+ return read_config_word(bus, devfn, where, (u16 *) val);
-+ default:
-+ return read_config_dword(bus, devfn, where, val);
-+ }
-+}
-+
-+static int
-+pci_config_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val)
-+{
-+ switch (size) {
-+ case 1:
-+ return write_config_byte(bus, devfn, where, (u8) val);
-+ case 2:
-+ return write_config_word(bus, devfn, where, (u16) val);
-+ default:
-+ return write_config_dword(bus, devfn, where, val);
-+ }
-+}
-+
-+struct pci_ops mt7621_pci_ops= {
-+ .read = pci_config_read,
-+ .write = pci_config_write,
-+};
-+
-+static struct resource mt7621_res_pci_mem1 = {
-+ .name = "PCI MEM1",
-+ .start = RALINK_PCI_MM_MAP_BASE,
-+ .end = (u32)((RALINK_PCI_MM_MAP_BASE + (unsigned char *)0x0fffffff)),
-+ .flags = IORESOURCE_MEM,
-+};
-+static struct resource mt7621_res_pci_io1 = {
-+ .name = "PCI I/O1",
-+ .start = RALINK_PCI_IO_MAP_BASE,
-+ .end = (u32)((RALINK_PCI_IO_MAP_BASE + (unsigned char *)0x0ffff)),
-+ .flags = IORESOURCE_IO,
-+};
-+
-+static struct pci_controller mt7621_controller = {
-+ .pci_ops = &mt7621_pci_ops,
-+ .mem_resource = &mt7621_res_pci_mem1,
-+ .io_resource = &mt7621_res_pci_io1,
-+ .mem_offset = 0x00000000UL,
-+ .io_offset = 0x00000000UL,
-+ .io_map_base = 0xa0000000,
-+};
-+
-+static void
-+read_config(unsigned long bus, unsigned long dev, unsigned long func, unsigned long reg, unsigned long *val)
-+{
-+ unsigned int address_reg, data_reg, address;
-+
-+ address_reg = RALINK_PCI_CONFIG_ADDR;
-+ data_reg = RALINK_PCI_CONFIG_DATA_VIRTUAL_REG;
-+ address = (((reg & 0xF00)>>8)<<24) | (bus << 16) | (dev << 11) | (func << 8) | (reg & 0xfc) | 0x80000000 ;
-+ MV_WRITE(address_reg, address);
-+ MV_READ(data_reg, val);
-+ return;
-+}
-+
-+static void
-+write_config(unsigned long bus, unsigned long dev, unsigned long func, unsigned long reg, unsigned long val)
-+{
-+ unsigned int address_reg, data_reg, address;
-+
-+ address_reg = RALINK_PCI_CONFIG_ADDR;
-+ data_reg = RALINK_PCI_CONFIG_DATA_VIRTUAL_REG;
-+ address = (((reg & 0xF00)>>8)<<24) | (bus << 16) | (dev << 11) | (func << 8) | (reg & 0xfc) | 0x80000000 ;
-+ MV_WRITE(address_reg, address);
-+ MV_WRITE(data_reg, val);
-+ return;
-+}
-+
-+
-+int
-+pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-+{
-+ u16 cmd;
-+ u32 val;
-+ int irq = 0;
-+
-+ if ((dev->bus->number == 0) && (slot == 0)) {
-+ write_config(0, 0, 0, PCI_BASE_ADDRESS_0, MEMORY_BASE);
-+ read_config(0, 0, 0, PCI_BASE_ADDRESS_0, (unsigned long *)&val);
-+ printk("BAR0 at slot 0 = %x\n", val);
-+ printk("bus=0x%x, slot = 0x%x\n",dev->bus->number, slot);
-+ } else if((dev->bus->number == 0) && (slot == 0x1)) {
-+ write_config(0, 1, 0, PCI_BASE_ADDRESS_0, MEMORY_BASE);
-+ read_config(0, 1, 0, PCI_BASE_ADDRESS_0, (unsigned long *)&val);
-+ printk("BAR0 at slot 1 = %x\n", val);
-+ printk("bus=0x%x, slot = 0x%x\n",dev->bus->number, slot);
-+ } else if((dev->bus->number == 0) && (slot == 0x2)) {
-+ write_config(0, 2, 0, PCI_BASE_ADDRESS_0, MEMORY_BASE);
-+ read_config(0, 2, 0, PCI_BASE_ADDRESS_0, (unsigned long *)&val);
-+ printk("BAR0 at slot 2 = %x\n", val);
-+ printk("bus=0x%x, slot = 0x%x\n",dev->bus->number, slot);
-+ } else if ((dev->bus->number == 1) && (slot == 0x0)) {
-+ switch (pcie_link_status) {
-+ case 2:
-+ case 6:
-+ irq = RALINK_INT_PCIE1;
-+ break;
-+ case 4:
-+ irq = RALINK_INT_PCIE2;
-+ break;
-+ default:
-+ irq = RALINK_INT_PCIE0;
-+ }
-+ printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq);
-+ } else if ((dev->bus->number == 2) && (slot == 0x0)) {
-+ switch (pcie_link_status) {
-+ case 5:
-+ case 6:
-+ irq = RALINK_INT_PCIE2;
-+ break;
-+ default:
-+ irq = RALINK_INT_PCIE1;
-+ }
-+ printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq);
-+ } else if ((dev->bus->number == 2) && (slot == 0x1)) {
-+ switch (pcie_link_status) {
-+ case 5:
-+ case 6:
-+ irq = RALINK_INT_PCIE2;
-+ break;
-+ default:
-+ irq = RALINK_INT_PCIE1;
-+ }
-+ printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq);
-+ } else if ((dev->bus->number ==3) && (slot == 0x0)) {
-+ irq = RALINK_INT_PCIE2;
-+ printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq);
-+ } else if ((dev->bus->number ==3) && (slot == 0x1)) {
-+ irq = RALINK_INT_PCIE2;
-+ printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq);
-+ } else if ((dev->bus->number ==3) && (slot == 0x2)) {
-+ irq = RALINK_INT_PCIE2;
-+ printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq);
-+ } else {
-+ printk("bus=0x%x, slot = 0x%x\n",dev->bus->number, slot);
-+ return 0;
-+ }
-+
-+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 0x14); //configure cache line size 0x14
-+ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xFF); //configure latency timer 0x10
-+ pci_read_config_word(dev, PCI_COMMAND, &cmd);
-+ cmd = cmd | PCI_COMMAND_MASTER | PCI_COMMAND_IO | PCI_COMMAND_MEMORY;
-+ pci_write_config_word(dev, PCI_COMMAND, cmd);
-+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
-+ return irq;
-+}
-+
-+void
-+set_pcie_phy(u32 *addr, int start_b, int bits, int val)
-+{
-+// printk("0x%p:", addr);
-+// printk(" %x", *addr);
-+ *(unsigned int *)(addr) &= ~(((1<<bits) - 1)<<start_b);
-+ *(unsigned int *)(addr) |= val << start_b;
-+// printk(" -> %x\n", *addr);
-+}
-+
-+void
-+bypass_pipe_rst(void)
-+{
-+#if defined (CONFIG_PCIE_PORT0)
-+ /* PCIe Port 0 */
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x02c), 12, 1, 0x01); // rg_pe1_pipe_rst_b
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x02c), 4, 1, 0x01); // rg_pe1_pipe_cmd_frc[4]
-+#endif
-+#if defined (CONFIG_PCIE_PORT1)
-+ /* PCIe Port 1 */
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x12c), 12, 1, 0x01); // rg_pe1_pipe_rst_b
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x12c), 4, 1, 0x01); // rg_pe1_pipe_cmd_frc[4]
-+#endif
-+#if defined (CONFIG_PCIE_PORT2)
-+ /* PCIe Port 2 */
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x02c), 12, 1, 0x01); // rg_pe1_pipe_rst_b
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x02c), 4, 1, 0x01); // rg_pe1_pipe_cmd_frc[4]
-+#endif
-+}
-+
-+void
-+set_phy_for_ssc(void)
-+{
-+ unsigned long reg = (*(volatile u32 *)(RALINK_SYSCTL_BASE + 0x10));
-+
-+ reg = (reg >> 6) & 0x7;
-+#if defined (CONFIG_PCIE_PORT0) || defined (CONFIG_PCIE_PORT1)
-+ /* Set PCIe Port0 & Port1 PHY to disable SSC */
-+ /* Debug Xtal Type */
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x400), 8, 1, 0x01); // rg_pe1_frc_h_xtal_type
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x400), 9, 2, 0x00); // rg_pe1_h_xtal_type
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x000), 4, 1, 0x01); // rg_pe1_frc_phy_en //Force Port 0 enable control
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 4, 1, 0x01); // rg_pe1_frc_phy_en //Force Port 1 enable control
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x000), 5, 1, 0x00); // rg_pe1_phy_en //Port 0 disable
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 5, 1, 0x00); // rg_pe1_phy_en //Port 1 disable
-+ if(reg <= 5 && reg >= 3) { // 40MHz Xtal
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 6, 2, 0x01); // RG_PE1_H_PLL_PREDIV //Pre-divider ratio (for host mode)
-+ printk("***** Xtal 40MHz *****\n");
-+ } else { // 25MHz | 20MHz Xtal
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 6, 2, 0x00); // RG_PE1_H_PLL_PREDIV //Pre-divider ratio (for host mode)
-+ if (reg >= 6) {
-+ printk("***** Xtal 25MHz *****\n");
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4bc), 4, 2, 0x01); // RG_PE1_H_PLL_FBKSEL //Feedback clock select
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x49c), 0,31, 0x18000000); // RG_PE1_H_LCDDS_PCW_NCPO //DDS NCPO PCW (for host mode)
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4a4), 0,16, 0x18d); // RG_PE1_H_LCDDS_SSC_PRD //DDS SSC dither period control
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4a8), 0,12, 0x4a); // RG_PE1_H_LCDDS_SSC_DELTA //DDS SSC dither amplitude control
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4a8), 16,12, 0x4a); // RG_PE1_H_LCDDS_SSC_DELTA1 //DDS SSC dither amplitude control for initial
-+ } else {
-+ printk("***** Xtal 20MHz *****\n");
-+ }
-+ }
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4a0), 5, 1, 0x01); // RG_PE1_LCDDS_CLK_PH_INV //DDS clock inversion
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 22, 2, 0x02); // RG_PE1_H_PLL_BC
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 18, 4, 0x06); // RG_PE1_H_PLL_BP
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 12, 4, 0x02); // RG_PE1_H_PLL_IR
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 8, 4, 0x01); // RG_PE1_H_PLL_IC
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4ac), 16, 3, 0x00); // RG_PE1_H_PLL_BR
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 1, 3, 0x02); // RG_PE1_PLL_DIVEN
-+ if(reg <= 5 && reg >= 3) { // 40MHz Xtal
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x414), 6, 2, 0x01); // rg_pe1_mstckdiv //value of da_pe1_mstckdiv when force mode enable
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x414), 5, 1, 0x01); // rg_pe1_frc_mstckdiv //force mode enable of da_pe1_mstckdiv
-+ }
-+ /* Enable PHY and disable force mode */
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x000), 5, 1, 0x01); // rg_pe1_phy_en //Port 0 enable
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 5, 1, 0x01); // rg_pe1_phy_en //Port 1 enable
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x000), 4, 1, 0x00); // rg_pe1_frc_phy_en //Force Port 0 disable control
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 4, 1, 0x00); // rg_pe1_frc_phy_en //Force Port 1 disable control
-+#endif
-+#if defined (CONFIG_PCIE_PORT2)
-+ /* Set PCIe Port2 PHY to disable SSC */
-+ /* Debug Xtal Type */
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x400), 8, 1, 0x01); // rg_pe1_frc_h_xtal_type
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x400), 9, 2, 0x00); // rg_pe1_h_xtal_type
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 4, 1, 0x01); // rg_pe1_frc_phy_en //Force Port 0 enable control
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 5, 1, 0x00); // rg_pe1_phy_en //Port 0 disable
-+ if(reg <= 5 && reg >= 3) { // 40MHz Xtal
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 6, 2, 0x01); // RG_PE1_H_PLL_PREDIV //Pre-divider ratio (for host mode)
-+ } else { // 25MHz | 20MHz Xtal
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 6, 2, 0x00); // RG_PE1_H_PLL_PREDIV //Pre-divider ratio (for host mode)
-+ if (reg >= 6) { // 25MHz Xtal
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4bc), 4, 2, 0x01); // RG_PE1_H_PLL_FBKSEL //Feedback clock select
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x49c), 0,31, 0x18000000); // RG_PE1_H_LCDDS_PCW_NCPO //DDS NCPO PCW (for host mode)
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4a4), 0,16, 0x18d); // RG_PE1_H_LCDDS_SSC_PRD //DDS SSC dither period control
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4a8), 0,12, 0x4a); // RG_PE1_H_LCDDS_SSC_DELTA //DDS SSC dither amplitude control
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4a8), 16,12, 0x4a); // RG_PE1_H_LCDDS_SSC_DELTA1 //DDS SSC dither amplitude control for initial
-+ }
-+ }
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4a0), 5, 1, 0x01); // RG_PE1_LCDDS_CLK_PH_INV //DDS clock inversion
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 22, 2, 0x02); // RG_PE1_H_PLL_BC
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 18, 4, 0x06); // RG_PE1_H_PLL_BP
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 12, 4, 0x02); // RG_PE1_H_PLL_IR
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 8, 4, 0x01); // RG_PE1_H_PLL_IC
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4ac), 16, 3, 0x00); // RG_PE1_H_PLL_BR
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 1, 3, 0x02); // RG_PE1_PLL_DIVEN
-+ if(reg <= 5 && reg >= 3) { // 40MHz Xtal
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x414), 6, 2, 0x01); // rg_pe1_mstckdiv //value of da_pe1_mstckdiv when force mode enable
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x414), 5, 1, 0x01); // rg_pe1_frc_mstckdiv //force mode enable of da_pe1_mstckdiv
-+ }
-+ /* Enable PHY and disable force mode */
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 5, 1, 0x01); // rg_pe1_phy_en //Port 0 enable
-+ set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 4, 1, 0x00); // rg_pe1_frc_phy_en //Force Port 0 disable control
-+#endif
-+}
-+
-+void setup_cm_memory_region(struct resource *mem_resource)
-+{
-+ resource_size_t mask;
-+ if (mips_cps_numiocu(0)) {
-+ /* FIXME: hardware doesn't accept mask values with 1s after
-+ 0s (e.g. 0xffef), so it would be great to warn if that's
-+ about to happen */
-+ mask = ~(mem_resource->end - mem_resource->start);
-+
-+ write_gcr_reg1_base(mem_resource->start);
-+ write_gcr_reg1_mask(mask | CM_GCR_REGn_MASK_CMTGT_IOCU0);
-+ printk("PCI coherence region base: 0x%08lx, mask/settings: 0x%08lx\n",
-+ read_gcr_reg1_base(),
-+ read_gcr_reg1_mask());
-+ }
-+}
-+
-+static int mt7621_pci_probe(struct platform_device *pdev)
-+{
-+ unsigned long val = 0;
-+ int i;
-+
-+ for (i = 0; i < 3; i++)
-+ pcie_irq[i] = irq_of_parse_and_map(pdev->dev.of_node, i);
-+
-+ iomem_resource.start = 0;
-+ iomem_resource.end= ~0;
-+ ioport_resource.start= 0;
-+ ioport_resource.end = ~0;
-+
-+#if defined (CONFIG_PCIE_PORT0)
-+ val = RALINK_PCIE0_RST;
-+#endif
-+#if defined (CONFIG_PCIE_PORT1)
-+ val |= RALINK_PCIE1_RST;
-+#endif
-+#if defined (CONFIG_PCIE_PORT2)
-+ val |= RALINK_PCIE2_RST;
-+#endif
-+ ASSERT_SYSRST_PCIE(RALINK_PCIE0_RST | RALINK_PCIE1_RST | RALINK_PCIE2_RST);
-+ printk("pull PCIe RST: RALINK_RSTCTRL = %x\n", RALINK_RSTCTRL);
-+#if defined GPIO_PERST /* add GPIO control instead of PERST_N */ /*chhung*/
-+ *(unsigned int *)(0xbe000060) &= ~(0x3<<10 | 0x3<<3);
-+ *(unsigned int *)(0xbe000060) |= 0x1<<10 | 0x1<<3;
-+ mdelay(100);
-+ *(unsigned int *)(0xbe000600) |= 0x1<<19 | 0x1<<8 | 0x1<<7; // use GPIO19/GPIO8/GPIO7 (PERST_N/UART_RXD3/UART_TXD3)
-+ mdelay(100);
-+ *(unsigned int *)(0xbe000620) &= ~(0x1<<19 | 0x1<<8 | 0x1<<7); // clear DATA
-+
-+ mdelay(100);
-+#else
-+ *(unsigned int *)(0xbe000060) &= ~0x00000c00;
-+#endif
-+#if defined (CONFIG_PCIE_PORT0)
-+ val = RALINK_PCIE0_RST;
-+#endif
-+#if defined (CONFIG_PCIE_PORT1)
-+ val |= RALINK_PCIE1_RST;
-+#endif
-+#if defined (CONFIG_PCIE_PORT2)
-+ val |= RALINK_PCIE2_RST;
-+#endif
-+ DEASSERT_SYSRST_PCIE(val);
-+ printk("release PCIe RST: RALINK_RSTCTRL = %x\n", RALINK_RSTCTRL);
-+
-+ if ((*(unsigned int *)(0xbe00000c)&0xFFFF) == 0x0101) // MT7621 E2
-+ bypass_pipe_rst();
-+ set_phy_for_ssc();
-+ printk("release PCIe RST: RALINK_RSTCTRL = %x\n", RALINK_RSTCTRL);
-+
-+#if defined (CONFIG_PCIE_PORT0)
-+ read_config(0, 0, 0, 0x70c, &val);
-+ printk("Port 0 N_FTS = %x\n", (unsigned int)val);
-+#endif
-+#if defined (CONFIG_PCIE_PORT1)
-+ read_config(0, 1, 0, 0x70c, &val);
-+ printk("Port 1 N_FTS = %x\n", (unsigned int)val);
-+#endif
-+#if defined (CONFIG_PCIE_PORT2)
-+ read_config(0, 2, 0, 0x70c, &val);
-+ printk("Port 2 N_FTS = %x\n", (unsigned int)val);
-+#endif
-+
-+ RALINK_RSTCTRL = (RALINK_RSTCTRL | RALINK_PCIE_RST);
-+ RALINK_SYSCFG1 &= ~(0x30);
-+ RALINK_SYSCFG1 |= (2<<4);
-+ RALINK_PCIE_CLK_GEN &= 0x7fffffff;
-+ RALINK_PCIE_CLK_GEN1 &= 0x80ffffff;
-+ RALINK_PCIE_CLK_GEN1 |= 0xa << 24;
-+ RALINK_PCIE_CLK_GEN |= 0x80000000;
-+ mdelay(50);
-+ RALINK_RSTCTRL = (RALINK_RSTCTRL & ~RALINK_PCIE_RST);
-+
-+
-+#if defined GPIO_PERST /* add GPIO control instead of PERST_N */ /*chhung*/
-+ *(unsigned int *)(0xbe000620) |= 0x1<<19 | 0x1<<8 | 0x1<<7; // set DATA
-+ mdelay(100);
-+#else
-+ RALINK_PCI_PCICFG_ADDR &= ~(1<<1); //de-assert PERST
-+#endif
-+ mdelay(500);
-+
-+
-+ mdelay(500);
-+#if defined (CONFIG_PCIE_PORT0)
-+ if(( RALINK_PCI0_STATUS & 0x1) == 0)
-+ {
-+ printk("PCIE0 no card, disable it(RST&CLK)\n");
-+ ASSERT_SYSRST_PCIE(RALINK_PCIE0_RST);
-+ RALINK_CLKCFG1 = (RALINK_CLKCFG1 & ~RALINK_PCIE0_CLK_EN);
-+ pcie_link_status &= ~(1<<0);
-+ } else {
-+ pcie_link_status |= 1<<0;
-+ RALINK_PCI_PCIMSK_ADDR |= (1<<20); // enable pcie1 interrupt
-+ }
-+#endif
-+#if defined (CONFIG_PCIE_PORT1)
-+ if(( RALINK_PCI1_STATUS & 0x1) == 0)
-+ {
-+ printk("PCIE1 no card, disable it(RST&CLK)\n");
-+ ASSERT_SYSRST_PCIE(RALINK_PCIE1_RST);
-+ RALINK_CLKCFG1 = (RALINK_CLKCFG1 & ~RALINK_PCIE1_CLK_EN);
-+ pcie_link_status &= ~(1<<1);
-+ } else {
-+ pcie_link_status |= 1<<1;
-+ RALINK_PCI_PCIMSK_ADDR |= (1<<21); // enable pcie1 interrupt
-+ }
-+#endif
-+#if defined (CONFIG_PCIE_PORT2)
-+ if (( RALINK_PCI2_STATUS & 0x1) == 0) {
-+ printk("PCIE2 no card, disable it(RST&CLK)\n");
-+ ASSERT_SYSRST_PCIE(RALINK_PCIE2_RST);
-+ RALINK_CLKCFG1 = (RALINK_CLKCFG1 & ~RALINK_PCIE2_CLK_EN);
-+ pcie_link_status &= ~(1<<2);
-+ } else {
-+ pcie_link_status |= 1<<2;
-+ RALINK_PCI_PCIMSK_ADDR |= (1<<22); // enable pcie2 interrupt
-+ }
-+#endif
-+ if (pcie_link_status == 0)
-+ return 0;
-+
-+/*
-+pcie(2/1/0) link status pcie2_num pcie1_num pcie0_num
-+3'b000 x x x
-+3'b001 x x 0
-+3'b010 x 0 x
-+3'b011 x 1 0
-+3'b100 0 x x
-+3'b101 1 x 0
-+3'b110 1 0 x
-+3'b111 2 1 0
-+*/
-+ switch(pcie_link_status) {
-+ case 2:
-+ RALINK_PCI_PCICFG_ADDR &= ~0x00ff0000;
-+ RALINK_PCI_PCICFG_ADDR |= 0x1 << 16; //port0
-+ RALINK_PCI_PCICFG_ADDR |= 0x0 << 20; //port1
-+ break;
-+ case 4:
-+ RALINK_PCI_PCICFG_ADDR &= ~0x0fff0000;
-+ RALINK_PCI_PCICFG_ADDR |= 0x1 << 16; //port0
-+ RALINK_PCI_PCICFG_ADDR |= 0x2 << 20; //port1
-+ RALINK_PCI_PCICFG_ADDR |= 0x0 << 24; //port2
-+ break;
-+ case 5:
-+ RALINK_PCI_PCICFG_ADDR &= ~0x0fff0000;
-+ RALINK_PCI_PCICFG_ADDR |= 0x0 << 16; //port0
-+ RALINK_PCI_PCICFG_ADDR |= 0x2 << 20; //port1
-+ RALINK_PCI_PCICFG_ADDR |= 0x1 << 24; //port2
-+ break;
-+ case 6:
-+ RALINK_PCI_PCICFG_ADDR &= ~0x0fff0000;
-+ RALINK_PCI_PCICFG_ADDR |= 0x2 << 16; //port0
-+ RALINK_PCI_PCICFG_ADDR |= 0x0 << 20; //port1
-+ RALINK_PCI_PCICFG_ADDR |= 0x1 << 24; //port2
-+ break;
-+ }
-+ printk(" -> %x\n", RALINK_PCI_PCICFG_ADDR);
-+ //printk(" RALINK_PCI_ARBCTL = %x\n", RALINK_PCI_ARBCTL);
-+
-+/*
-+ ioport_resource.start = mt7621_res_pci_io1.start;
-+ ioport_resource.end = mt7621_res_pci_io1.end;
-+*/
-+
-+ RALINK_PCI_MEMBASE = 0xffffffff; //RALINK_PCI_MM_MAP_BASE;
-+ RALINK_PCI_IOBASE = RALINK_PCI_IO_MAP_BASE;
-+
-+#if defined (CONFIG_PCIE_PORT0)
-+ //PCIe0
-+ if((pcie_link_status & 0x1) != 0) {
-+ RALINK_PCI0_BAR0SETUP_ADDR = 0x7FFF0001; //open 7FFF:2G; ENABLE
-+ RALINK_PCI0_IMBASEBAR0_ADDR = MEMORY_BASE;
-+ RALINK_PCI0_CLASS = 0x06040001;
-+ printk("PCIE0 enabled\n");
-+ }
-+#endif
-+#if defined (CONFIG_PCIE_PORT1)
-+ //PCIe1
-+ if ((pcie_link_status & 0x2) != 0) {
-+ RALINK_PCI1_BAR0SETUP_ADDR = 0x7FFF0001; //open 7FFF:2G; ENABLE
-+ RALINK_PCI1_IMBASEBAR0_ADDR = MEMORY_BASE;
-+ RALINK_PCI1_CLASS = 0x06040001;
-+ printk("PCIE1 enabled\n");
-+ }
-+#endif
-+#if defined (CONFIG_PCIE_PORT2)
-+ //PCIe2
-+ if ((pcie_link_status & 0x4) != 0) {
-+ RALINK_PCI2_BAR0SETUP_ADDR = 0x7FFF0001; //open 7FFF:2G; ENABLE
-+ RALINK_PCI2_IMBASEBAR0_ADDR = MEMORY_BASE;
-+ RALINK_PCI2_CLASS = 0x06040001;
-+ printk("PCIE2 enabled\n");
-+ }
-+#endif
-+
-+
-+ switch(pcie_link_status) {
-+ case 7:
-+ read_config(0, 2, 0, 0x4, &val);
-+ write_config(0, 2, 0, 0x4, val|0x4);
-+ // write_config(0, 1, 0, 0x4, val|0x7);
-+ read_config(0, 2, 0, 0x70c, &val);
-+ val &= ~(0xff)<<8;
-+ val |= 0x50<<8;
-+ write_config(0, 2, 0, 0x70c, val);
-+ case 3:
-+ case 5:
-+ case 6:
-+ read_config(0, 1, 0, 0x4, &val);
-+ write_config(0, 1, 0, 0x4, val|0x4);
-+ // write_config(0, 1, 0, 0x4, val|0x7);
-+ read_config(0, 1, 0, 0x70c, &val);
-+ val &= ~(0xff)<<8;
-+ val |= 0x50<<8;
-+ write_config(0, 1, 0, 0x70c, val);
-+ default:
-+ read_config(0, 0, 0, 0x4, &val);
-+ write_config(0, 0, 0, 0x4, val|0x4); //bus master enable
-+ // write_config(0, 0, 0, 0x4, val|0x7); //bus master enable
-+ read_config(0, 0, 0, 0x70c, &val);
-+ val &= ~(0xff)<<8;
-+ val |= 0x50<<8;
-+ write_config(0, 0, 0, 0x70c, val);
-+ }
-+
-+ pci_load_of_ranges(&mt7621_controller, pdev->dev.of_node);
-+ setup_cm_memory_region(mt7621_controller.mem_resource);
-+ register_pci_controller(&mt7621_controller);
-+ return 0;
-+
-+}
-+
-+int pcibios_plat_dev_init(struct pci_dev *dev)
-+{
-+ return 0;
-+}
-+
-+static const struct of_device_id mt7621_pci_ids[] = {
-+ { .compatible = "mediatek,mt7621-pci" },
-+ {},
-+};
-+MODULE_DEVICE_TABLE(of, mt7621_pci_ids);
-+
-+static struct platform_driver mt7621_pci_driver = {
-+ .probe = mt7621_pci_probe,
-+ .driver = {
-+ .name = "mt7621-pci",
-+ .owner = THIS_MODULE,
-+ .of_match_table = of_match_ptr(mt7621_pci_ids),
-+ },
-+};
-+
-+static int __init mt7621_pci_init(void)
-+{
-+ return platform_driver_register(&mt7621_pci_driver);
-+}
-+
-+arch_initcall(mt7621_pci_init);
projects / openwrt / staging / mkresin.git / commitdiff