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openwrt_archive/target/linux/ar71xx/patches-3.3/002-USB-use-generic-platform-driver-on-ath79.patch
Gabor Juhos 944a6054fc ar71xx: update 3.3 patches 
SVN-Revision: 31602
2012-05-05 13:56:35 +00:00

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From dbcbcdd001c5943adbb18db3b8f0dafc405559eb Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Tue, 13 Mar 2012 01:04:53 +0100
Subject: [PATCH 03/47] USB: use generic platform driver on ath79
The ath79 usb driver doesn't do anything special and is now converted
to the generic ehci and ohci driver.
This was tested on a TP-Link TL-WR1043ND (AR9132)
Acked-by: Gabor Juhos <juhosg@openwrt.org>
CC: Imre Kaloz <kaloz@openwrt.org>
CC: linux-mips@linux-mips.org
CC: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/mips/ath79/dev-usb.c | 31 +++++-
drivers/usb/host/Kconfig | 12 ++-
drivers/usb/host/ehci-ath79.c | 208 -----------------------------------------
drivers/usb/host/ehci-hcd.c | 5 -
drivers/usb/host/ohci-ath79.c | 151 -----------------------------
drivers/usb/host/ohci-hcd.c | 5 -
6 files changed, 35 insertions(+), 377 deletions(-)
delete mode 100644 drivers/usb/host/ehci-ath79.c
delete mode 100644 drivers/usb/host/ohci-ath79.c
--- a/arch/mips/ath79/dev-usb.c
+++ b/arch/mips/ath79/dev-usb.c
@@ -17,6 +17,8 @@
#include <linux/irq.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
+#include <linux/usb/ehci_pdriver.h>
+#include <linux/usb/ohci_pdriver.h>
#include <asm/mach-ath79/ath79.h>
#include <asm/mach-ath79/ar71xx_regs.h>
@@ -36,14 +38,19 @@ static struct resource ath79_ohci_resour
};
static u64 ath79_ohci_dmamask = DMA_BIT_MASK(32);
+
+static struct usb_ohci_pdata ath79_ohci_pdata = {
+};
+
static struct platform_device ath79_ohci_device = {
- .name = "ath79-ohci",
+ .name = "ohci-platform",
.id = -1,
.resource = ath79_ohci_resources,
.num_resources = ARRAY_SIZE(ath79_ohci_resources),
.dev = {
.dma_mask = &ath79_ohci_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
+ .platform_data = &ath79_ohci_pdata,
},
};
@@ -60,8 +67,20 @@ static struct resource ath79_ehci_resour
};
static u64 ath79_ehci_dmamask = DMA_BIT_MASK(32);
+
+static struct usb_ehci_pdata ath79_ehci_pdata_v1 = {
+ .has_synopsys_hc_bug = 1,
+ .port_power_off = 1,
+};
+
+static struct usb_ehci_pdata ath79_ehci_pdata_v2 = {
+ .caps_offset = 0x100,
+ .has_tt = 1,
+ .port_power_off = 1,
+};
+
static struct platform_device ath79_ehci_device = {
- .name = "ath79-ehci",
+ .name = "ehci-platform",
.id = -1,
.resource = ath79_ehci_resources,
.num_resources = ARRAY_SIZE(ath79_ehci_resources),
@@ -101,7 +120,7 @@ static void __init ath79_usb_setup(void)
ath79_ehci_resources[0].start = AR71XX_EHCI_BASE;
ath79_ehci_resources[0].end = AR71XX_EHCI_BASE + AR71XX_EHCI_SIZE - 1;
- ath79_ehci_device.name = "ar71xx-ehci";
+ ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v1;
platform_device_register(&ath79_ehci_device);
}
@@ -142,7 +161,7 @@ static void __init ar724x_usb_setup(void
ath79_ehci_resources[0].start = AR724X_EHCI_BASE;
ath79_ehci_resources[0].end = AR724X_EHCI_BASE + AR724X_EHCI_SIZE - 1;
- ath79_ehci_device.name = "ar724x-ehci";
+ ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
platform_device_register(&ath79_ehci_device);
}
@@ -159,7 +178,7 @@ static void __init ar913x_usb_setup(void
ath79_ehci_resources[0].start = AR913X_EHCI_BASE;
ath79_ehci_resources[0].end = AR913X_EHCI_BASE + AR913X_EHCI_SIZE - 1;
- ath79_ehci_device.name = "ar913x-ehci";
+ ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
platform_device_register(&ath79_ehci_device);
}
@@ -176,7 +195,7 @@ static void __init ar933x_usb_setup(void
ath79_ehci_resources[0].start = AR933X_EHCI_BASE;
ath79_ehci_resources[0].end = AR933X_EHCI_BASE + AR933X_EHCI_SIZE - 1;
- ath79_ehci_device.name = "ar933x-ehci";
+ ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
platform_device_register(&ath79_ehci_device);
}
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -218,11 +218,15 @@ config USB_CNS3XXX_EHCI
support.
config USB_EHCI_ATH79
- bool "EHCI support for AR7XXX/AR9XXX SoCs"
+ bool "EHCI support for AR7XXX/AR9XXX SoCs (DEPRECATED)"
depends on USB_EHCI_HCD && (SOC_AR71XX || SOC_AR724X || SOC_AR913X || SOC_AR933X)
select USB_EHCI_ROOT_HUB_TT
+ select USB_EHCI_HCD_PLATFORM
default y
---help---
+ This option is deprecated now and the driver was removed, use
+ USB_EHCI_HCD_PLATFORM instead.
+
Enables support for the built-in EHCI controller present
on the Atheros AR7XXX/AR9XXX SoCs.
@@ -312,10 +316,14 @@ config USB_OHCI_HCD_OMAP3
OMAP3 and later chips.
config USB_OHCI_ATH79
- bool "USB OHCI support for the Atheros AR71XX/AR7240 SoCs"
+ bool "USB OHCI support for the Atheros AR71XX/AR7240 SoCs (DEPRECATED)"
depends on USB_OHCI_HCD && (SOC_AR71XX || SOC_AR724X)
+ select USB_OHCI_HCD_PLATFORM
default y
help
+ This option is deprecated now and the driver was removed, use
+ USB_OHCI_HCD_PLATFORM instead.
+
Enables support for the built-in OHCI controller present on the
Atheros AR71XX/AR7240 SoCs.
--- a/drivers/usb/host/ehci-ath79.c
+++ /dev/null
@@ -1,208 +0,0 @@
-/*
- * Bus Glue for Atheros AR7XXX/AR9XXX built-in EHCI controller.
- *
- * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * Parts of this file are based on Atheros' 2.6.15 BSP
- * Copyright (C) 2007 Atheros Communications, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/platform_device.h>
-
-enum {
- EHCI_ATH79_IP_V1 = 0,
- EHCI_ATH79_IP_V2,
-};
-
-static const struct platform_device_id ehci_ath79_id_table[] = {
- {
- .name = "ar71xx-ehci",
- .driver_data = EHCI_ATH79_IP_V1,
- },
- {
- .name = "ar724x-ehci",
- .driver_data = EHCI_ATH79_IP_V2,
- },
- {
- .name = "ar913x-ehci",
- .driver_data = EHCI_ATH79_IP_V2,
- },
- {
- .name = "ar933x-ehci",
- .driver_data = EHCI_ATH79_IP_V2,
- },
- {
- /* terminating entry */
- },
-};
-
-MODULE_DEVICE_TABLE(platform, ehci_ath79_id_table);
-
-static int ehci_ath79_init(struct usb_hcd *hcd)
-{
- struct ehci_hcd *ehci = hcd_to_ehci(hcd);
- struct platform_device *pdev = to_platform_device(hcd->self.controller);
- const struct platform_device_id *id;
- int ret;
-
- id = platform_get_device_id(pdev);
- if (!id) {
- dev_err(hcd->self.controller, "missing device id\n");
- return -EINVAL;
- }
-
- switch (id->driver_data) {
- case EHCI_ATH79_IP_V1:
- ehci->has_synopsys_hc_bug = 1;
-
- ehci->caps = hcd->regs;
- ehci->regs = hcd->regs +
- HC_LENGTH(ehci,
- ehci_readl(ehci, &ehci->caps->hc_capbase));
- break;
-
- case EHCI_ATH79_IP_V2:
- hcd->has_tt = 1;
-
- ehci->caps = hcd->regs + 0x100;
- ehci->regs = hcd->regs + 0x100 +
- HC_LENGTH(ehci,
- ehci_readl(ehci, &ehci->caps->hc_capbase));
- break;
-
- default:
- BUG();
- }
-
- dbg_hcs_params(ehci, "reset");
- dbg_hcc_params(ehci, "reset");
- ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
- ehci->sbrn = 0x20;
-
- ehci_reset(ehci);
-
- ret = ehci_init(hcd);
- if (ret)
- return ret;
-
- ehci_port_power(ehci, 0);
-
- return 0;
-}
-
-static const struct hc_driver ehci_ath79_hc_driver = {
- .description = hcd_name,
- .product_desc = "Atheros built-in EHCI controller",
- .hcd_priv_size = sizeof(struct ehci_hcd),
- .irq = ehci_irq,
- .flags = HCD_MEMORY | HCD_USB2,
-
- .reset = ehci_ath79_init,
- .start = ehci_run,
- .stop = ehci_stop,
- .shutdown = ehci_shutdown,
-
- .urb_enqueue = ehci_urb_enqueue,
- .urb_dequeue = ehci_urb_dequeue,
- .endpoint_disable = ehci_endpoint_disable,
- .endpoint_reset = ehci_endpoint_reset,
-
- .get_frame_number = ehci_get_frame,
-
- .hub_status_data = ehci_hub_status_data,
- .hub_control = ehci_hub_control,
-
- .relinquish_port = ehci_relinquish_port,
- .port_handed_over = ehci_port_handed_over,
-
- .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
-};
-
-static int ehci_ath79_probe(struct platform_device *pdev)
-{
- struct usb_hcd *hcd;
- struct resource *res;
- int irq;
- int ret;
-
- if (usb_disabled())
- return -ENODEV;
-
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!res) {
- dev_dbg(&pdev->dev, "no IRQ specified\n");
- return -ENODEV;
- }
- irq = res->start;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_dbg(&pdev->dev, "no base address specified\n");
- return -ENODEV;
- }
-
- hcd = usb_create_hcd(&ehci_ath79_hc_driver, &pdev->dev,
- dev_name(&pdev->dev));
- if (!hcd)
- return -ENOMEM;
-
- hcd->rsrc_start = res->start;
- hcd->rsrc_len = resource_size(res);
-
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
- dev_dbg(&pdev->dev, "controller already in use\n");
- ret = -EBUSY;
- goto err_put_hcd;
- }
-
- hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
- if (!hcd->regs) {
- dev_dbg(&pdev->dev, "error mapping memory\n");
- ret = -EFAULT;
- goto err_release_region;
- }
-
- ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
- if (ret)
- goto err_iounmap;
-
- return 0;
-
-err_iounmap:
- iounmap(hcd->regs);
-
-err_release_region:
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-err_put_hcd:
- usb_put_hcd(hcd);
- return ret;
-}
-
-static int ehci_ath79_remove(struct platform_device *pdev)
-{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
- usb_remove_hcd(hcd);
- iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- usb_put_hcd(hcd);
-
- return 0;
-}
-
-static struct platform_driver ehci_ath79_driver = {
- .probe = ehci_ath79_probe,
- .remove = ehci_ath79_remove,
- .id_table = ehci_ath79_id_table,
- .driver = {
- .owner = THIS_MODULE,
- .name = "ath79-ehci",
- }
-};
-
-MODULE_ALIAS(PLATFORM_MODULE_PREFIX "ath79-ehci");
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1356,11 +1356,6 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER s5p_ehci_driver
#endif
-#ifdef CONFIG_USB_EHCI_ATH79
-#include "ehci-ath79.c"
-#define PLATFORM_DRIVER ehci_ath79_driver
-#endif
-
#ifdef CONFIG_SPARC_LEON
#include "ehci-grlib.c"
#define PLATFORM_DRIVER ehci_grlib_driver
--- a/drivers/usb/host/ohci-ath79.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * OHCI HCD (Host Controller Driver) for USB.
- *
- * Bus Glue for Atheros AR71XX/AR724X built-in OHCI controller.
- *
- * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * Parts of this file are based on Atheros' 2.6.15 BSP
- * Copyright (C) 2007 Atheros Communications, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/platform_device.h>
-
-static int __devinit ohci_ath79_start(struct usb_hcd *hcd)
-{
- struct ohci_hcd *ohci = hcd_to_ohci(hcd);
- int ret;
-
- ret = ohci_init(ohci);
- if (ret < 0)
- return ret;
-
- ret = ohci_run(ohci);
- if (ret < 0)
- goto err;
-
- return 0;
-
-err:
- ohci_stop(hcd);
- return ret;
-}
-
-static const struct hc_driver ohci_ath79_hc_driver = {
- .description = hcd_name,
- .product_desc = "Atheros built-in OHCI controller",
- .hcd_priv_size = sizeof(struct ohci_hcd),
-
- .irq = ohci_irq,
- .flags = HCD_USB11 | HCD_MEMORY,
-
- .start = ohci_ath79_start,
- .stop = ohci_stop,
- .shutdown = ohci_shutdown,
-
- .urb_enqueue = ohci_urb_enqueue,
- .urb_dequeue = ohci_urb_dequeue,
- .endpoint_disable = ohci_endpoint_disable,
-
- /*
- * scheduling support
- */
- .get_frame_number = ohci_get_frame,
-
- /*
- * root hub support
- */
- .hub_status_data = ohci_hub_status_data,
- .hub_control = ohci_hub_control,
- .start_port_reset = ohci_start_port_reset,
-};
-
-static int ohci_ath79_probe(struct platform_device *pdev)
-{
- struct usb_hcd *hcd;
- struct resource *res;
- int irq;
- int ret;
-
- if (usb_disabled())
- return -ENODEV;
-
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!res) {
- dev_dbg(&pdev->dev, "no IRQ specified\n");
- return -ENODEV;
- }
- irq = res->start;
-
- hcd = usb_create_hcd(&ohci_ath79_hc_driver, &pdev->dev,
- dev_name(&pdev->dev));
- if (!hcd)
- return -ENOMEM;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_dbg(&pdev->dev, "no base address specified\n");
- ret = -ENODEV;
- goto err_put_hcd;
- }
- hcd->rsrc_start = res->start;
- hcd->rsrc_len = resource_size(res);
-
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
- dev_dbg(&pdev->dev, "controller already in use\n");
- ret = -EBUSY;
- goto err_put_hcd;
- }
-
- hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
- if (!hcd->regs) {
- dev_dbg(&pdev->dev, "error mapping memory\n");
- ret = -EFAULT;
- goto err_release_region;
- }
-
- ohci_hcd_init(hcd_to_ohci(hcd));
-
- ret = usb_add_hcd(hcd, irq, 0);
- if (ret)
- goto err_stop_hcd;
-
- return 0;
-
-err_stop_hcd:
- iounmap(hcd->regs);
-err_release_region:
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-err_put_hcd:
- usb_put_hcd(hcd);
- return ret;
-}
-
-static int ohci_ath79_remove(struct platform_device *pdev)
-{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
- usb_remove_hcd(hcd);
- iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- usb_put_hcd(hcd);
-
- return 0;
-}
-
-static struct platform_driver ohci_hcd_ath79_driver = {
- .probe = ohci_ath79_probe,
- .remove = ohci_ath79_remove,
- .shutdown = usb_hcd_platform_shutdown,
- .driver = {
- .name = "ath79-ohci",
- .owner = THIS_MODULE,
- },
-};
-
-MODULE_ALIAS(PLATFORM_MODULE_PREFIX "ath79-ohci");
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1111,11 +1111,6 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ohci_hcd_cns3xxx_driver
#endif
-#ifdef CONFIG_USB_OHCI_ATH79
-#include "ohci-ath79.c"
-#define PLATFORM_DRIVER ohci_hcd_ath79_driver
-#endif
-
#ifdef CONFIG_CPU_XLR
#include "ohci-xls.c"
#define PLATFORM_DRIVER ohci_xls_driver
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