--- /dev/null
+From 6ac09efa8f0e189ffe7dd7b0889289de56ee44cc Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Sun, 19 Jan 2014 12:18:03 +0100
+Subject: [PATCH] USB: EHCI: allow limiting ports for ehci-platform
+
+In the same way as the ohci platform driver allows limiting ports,
+enable the same for ehci. This prevents a mismatch in the available
+ports between ehci/ohci on USB 2.0 controllers.
+
+This is needed if the USB host controller always reports the maximum
+number of ports regardless of the number of available ports (because
+one might be set to be usb device).
+
+Signed-off-by: Jonas Gorski <jogo@openwrt.org>
+---
+ drivers/usb/host/ehci-hcd.c | 4 ++++
+ drivers/usb/host/ehci-platform.c | 2 ++
+ drivers/usb/host/ehci.h | 1 +
+ include/linux/usb/ehci_pdriver.h | 1 +
+ 4 files changed, 8 insertions(+)
+
+--- a/drivers/usb/host/ehci-hcd.c
++++ b/drivers/usb/host/ehci-hcd.c
+@@ -661,6 +661,10 @@ int ehci_setup(struct usb_hcd *hcd)
+
+ /* cache this readonly data; minimize chip reads */
+ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
++ if (ehci->num_ports) {
++ ehci->hcs_params &= ~0xf; /* bits 3:0, ports on HC */
++ ehci->hcs_params |= ehci->num_ports;
++ }
+
+ ehci->sbrn = HCD_USB2;
+
+--- a/drivers/usb/host/ehci-platform.c
++++ b/drivers/usb/host/ehci-platform.c
+@@ -48,6 +48,8 @@ static int ehci_platform_reset(struct us
+ ehci->big_endian_desc = pdata->big_endian_desc;
+ ehci->big_endian_mmio = pdata->big_endian_mmio;
+ ehci->ignore_oc = pdata->ignore_oc;
++ if (pdata->num_ports && pdata->num_ports <= 15)
++ ehci->num_ports = pdata->num_ports;
+
+ ehci->caps = hcd->regs + pdata->caps_offset;
+ retval = ehci_setup(hcd);
+--- a/drivers/usb/host/ehci.h
++++ b/drivers/usb/host/ehci.h
+@@ -188,6 +188,7 @@ struct ehci_hcd { /* one per controlle
+ u32 command;
+
+ /* SILICON QUIRKS */
++ unsigned int num_ports;
+ unsigned no_selective_suspend:1;
+ unsigned has_fsl_port_bug:1; /* FreeScale */
+ unsigned big_endian_mmio:1;
+--- a/include/linux/usb/ehci_pdriver.h
++++ b/include/linux/usb/ehci_pdriver.h
+@@ -37,6 +37,7 @@
+ */
+ struct usb_ehci_pdata {
+ int caps_offset;
++ unsigned int num_ports;
+ unsigned has_tt:1;
+ unsigned has_synopsys_hc_bug:1;
+ unsigned big_endian_desc:1;
--- /dev/null
+--- a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
++++ b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
+@@ -42,6 +42,7 @@ struct board_info {
+
+ /* USB config */
+ struct bcm63xx_usbd_platform_data usbd;
++ unsigned int num_usbh_ports:2;
+
+ /* DSP config */
+ struct bcm63xx_dsp_platform_data dsp;
+--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h
++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h
+@@ -1,6 +1,6 @@
+ #ifndef BCM63XX_DEV_USB_EHCI_H_
+ #define BCM63XX_DEV_USB_EHCI_H_
+
+-int bcm63xx_ehci_register(void);
++int bcm63xx_ehci_register(unsigned int num_ports);
+
+ #endif /* BCM63XX_DEV_USB_EHCI_H_ */
+--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h
++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h
+@@ -1,6 +1,6 @@
+ #ifndef BCM63XX_DEV_USB_OHCI_H_
+ #define BCM63XX_DEV_USB_OHCI_H_
+
+-int bcm63xx_ohci_register(void);
++int bcm63xx_ohci_register(unsigned int num_ports);
+
+ #endif /* BCM63XX_DEV_USB_OHCI_H_ */
+--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
++++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
+@@ -965,6 +965,7 @@ int __init board_register_devices(void)
+ {
+ int button_count = 0;
+ int led_count = 0;
++ int usbh_ports = 0;
+
+ if (board.has_uart0)
+ bcm63xx_uart_register(0);
+@@ -987,14 +988,21 @@ int __init board_register_devices(void)
+ !bcm63xx_nvram_get_mac_address(board.enetsw.mac_addr))
+ bcm63xx_enetsw_register(&board.enetsw);
+
++ if ((board.has_ohci0 || board.has_ehci0)) {
++ usbh_ports = board.num_usbh_ports;
++
++ if (!usbh_ports || WARN_ON(usbh_ports > 1 && board.has_usbd))
++ usbh_ports = 1;
++ }
++
+ if (board.has_usbd)
+ bcm63xx_usbd_register(&board.usbd);
+
+ if (board.has_ehci0)
+- bcm63xx_ehci_register();
++ bcm63xx_ehci_register(usbh_ports);
+
+ if (board.has_ohci0)
+- bcm63xx_ohci_register();
++ bcm63xx_ohci_register(usbh_ports);
+
+ if (board.has_dsp)
+ bcm63xx_dsp_register(&board.dsp);
+--- a/arch/mips/bcm63xx/dev-usb-ehci.c
++++ b/arch/mips/bcm63xx/dev-usb-ehci.c
+@@ -79,12 +79,14 @@ static struct platform_device bcm63xx_eh
+ },
+ };
+
+-int __init bcm63xx_ehci_register(void)
++int __init bcm63xx_ehci_register(unsigned int num_ports)
+ {
+ if (!BCMCPU_IS_6318() && !BCMCPU_IS_6328() && !BCMCPU_IS_6358() &&
+ !BCMCPU_IS_6362() && !BCMCPU_IS_6368() && !BCMCPU_IS_63268())
+ return 0;
+
++ bcm63xx_ehci_pdata.num_ports = num_ports;
++
+ ehci_resources[0].start = bcm63xx_regset_address(RSET_EHCI0);
+ ehci_resources[0].end = ehci_resources[0].start;
+ ehci_resources[0].end += RSET_EHCI_SIZE - 1;
+--- a/arch/mips/bcm63xx/dev-usb-ohci.c
++++ b/arch/mips/bcm63xx/dev-usb-ohci.c
+@@ -62,7 +62,6 @@ static struct usb_ohci_pdata bcm63xx_ohc
+ .big_endian_desc = 1,
+ .big_endian_mmio = 1,
+ .no_big_frame_no = 1,
+- .num_ports = 1,
+ .power_on = bcm63xx_ohci_power_on,
+ .power_off = bcm63xx_ohci_power_off,
+ .power_suspend = bcm63xx_ohci_power_off,
+@@ -80,11 +79,13 @@ static struct platform_device bcm63xx_oh
+ },
+ };
+
+-int __init bcm63xx_ohci_register(void)
++int __init bcm63xx_ohci_register(unsigned int num_ports)
+ {
+ if (BCMCPU_IS_6345() || BCMCPU_IS_6338())
+ return -ENODEV;
+
++ bcm63xx_ohci_pdata.num_ports = num_ports;
++
+ ohci_resources[0].start = bcm63xx_regset_address(RSET_OHCI0);
+ ohci_resources[0].end = ohci_resources[0].start;
+ ohci_resources[0].end += RSET_OHCI_SIZE - 1;
#include <uapi/linux/bcm933xx_hcs.h>
#include <uapi/linux/bcm963xx_tag.h>
-@@ -967,6 +968,7 @@ int __init board_register_devices(void)
- {
+@@ -968,6 +969,7 @@ int __init board_register_devices(void)
int button_count = 0;
int led_count = 0;
+ int usbh_ports = 0;
+ int i;
if (board.has_uart0)
bcm63xx_uart_register(0);
-@@ -1005,7 +1007,8 @@ int __init board_register_devices(void)
+@@ -1013,7 +1015,8 @@ int __init board_register_devices(void)
* do this after registering enet devices
*/
#ifdef CONFIG_SSB_PCIHOST
memcpy(bcm63xx_sprom.et0mac, bcm63xx_sprom.il0mac, ETH_ALEN);
memcpy(bcm63xx_sprom.et1mac, bcm63xx_sprom.il0mac, ETH_ALEN);
if (ssb_arch_register_fallback_sprom(
-@@ -1052,5 +1055,9 @@ int __init board_register_devices(void)
+@@ -1060,5 +1063,9 @@ int __init board_register_devices(void)
platform_device_register(&bcm63xx_gpio_keys_device);
}
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
-@@ -1027,7 +1027,7 @@ int __init board_register_devices(void)
+@@ -1035,7 +1035,7 @@ int __init board_register_devices(void)
if (board.num_spis)
spi_register_board_info(board.spis, board.num_spis);
return;
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
-@@ -1057,7 +1057,8 @@ int __init board_register_devices(void)
+@@ -1065,7 +1065,8 @@ int __init board_register_devices(void)
/* register any fixups */
for (i = 0; i < board.has_caldata; i++)
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
-@@ -1058,7 +1058,7 @@ int __init board_register_devices(void)
+@@ -1066,7 +1066,7 @@ int __init board_register_devices(void)
/* register any fixups */
for (i = 0; i < board.has_caldata; i++)
pci_enable_ath9k_fixup(board.caldata[i].slot, board.caldata[i].caldata_offset,
#include <uapi/linux/bcm933xx_hcs.h>
#include <uapi/linux/bcm963xx_tag.h>
-@@ -1056,9 +1057,19 @@ int __init board_register_devices(void)
+@@ -1064,9 +1065,19 @@ int __init board_register_devices(void)
}
/* register any fixups */
projects / openwrt / staging / lynxis / omap.git / commitdiff