Dear sirs,
The patch adds this usb host driver to w90p910 platform.
It is based on version of 2.6.30-rc3.
would you please give me some advice about this patch?
arch/arm/mach-w90x900/include/mach/map.h | 11
arch/arm/mach-w90x900/include/mach/regs-clock.h | 33 ++
arch/arm/mach-w90x900/include/mach/regs-usb.h | 37 ++
drivers/usb/Kconfig | 2
drivers/usb/host/Kconfig | 12
drivers/usb/host/ehci-hcd.c | 5
drivers/usb/host/ehci-w90x900.c | 175 ++++++++++++++
drivers/usb/host/ohci-hcd.c | 5
drivers/usb/host/ohci-w90x900.c | 171 +++++++++++++
9 files changed, 451 insertions(+)
---
Add this usb host driver including EHCI and OHCI.
It is only one part of patch,the other will be
submitted soon after.
Signed-off-by: Wan ZongShun <mcuos.com@xxxxxxxxx>
diff -Npur linux-2.6.29/arch/arm/mach-w90x900/include/mach/map.h
linux-2.6.30-rc3/arch/arm/mach-w90x900/include/mach/map.h
--- linux-2.6.29/arch/arm/mach-w90x900/include/mach/map.h 2009-03-24
07:12:14.000000000 +0800
+++ linux-2.6.30-rc3/arch/arm/mach-w90x900/include/mach/map.h 2009-04-27
14:36:51.000000000 +0800
@@ -73,4 +73,15 @@
#define W90X900_PA_GPIO (0xB8003000)
#define W90X900_SZ_GPIO SZ_4K
+/* usb host ports */
+
+#define W90X900_VA_USBEHCIHOST W90X900_ADDR(0x00005000)
+#define W90X900_PA_USBEHCIHOST (0xB0005000)
+#define W90X900_SZ_USBEHCIHOST SZ_4K
+
+#define W90X900_VA_USBOHCIHOST W90X900_ADDR(0x00007000)
+#define W90X900_PA_USBOHCIHOST (0xB0007000)
+#define W90X900_SZ_USBOHCIHOST SZ_4K
+
+
#endif /* __ASM_ARCH_MAP_H */
diff -Npur linux-2.6.29/arch/arm/mach-w90x900/include/mach/regs-clock.h
linux-2.6.30-rc3/arch/arm/mach-w90x900/include/mach/regs-clock.h
--- linux-2.6.29/arch/arm/mach-w90x900/include/mach/regs-clock.h
1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.30-rc3/arch/arm/mach-w90x900/include/mach/regs-clock.h
2009-04-27
15:07:59.000000000 +0800
@@ -0,0 +1,33 @@
+/*
+ * arch/arm/mach-w90x900/include/mach/regs-clock.h
+ *
+ * Copyright (c) 2008 Nuvoton technology corporation
+ * All rights reserved.
+ *
+ * Wan ZongShun <mcuos.com@xxxxxxxxx>
+ *
+ * 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.
+ *
+ */
+
+#ifndef __ASM_ARCH_REGS_CLOCK_H
+#define __ASM_ARCH_REGS_CLOCK_H
+
+/* Clock Control Registers */
+#define CLK_BA W90X900_VA_CLKPWR
+#define REG_CLKEN (CLK_BA + 0x00)
+#define REG_CLKSEL (CLK_BA + 0x04)
+#define REG_CLKDIV (CLK_BA + 0x08)
+#define REG_PLLCON0 (CLK_BA + 0x0C)
+#define REG_PLLCON1 (CLK_BA + 0x10)
+#define REG_PMCON (CLK_BA + 0x14)
+#define REG_IRQWAKECON (CLK_BA + 0x18)
+#define REG_IRQWAKEFLAG (CLK_BA + 0x1C)
+#define REG_IPSRST (CLK_BA + 0x20)
+#define REG_CLKEN1 (CLK_BA + 0x24)
+#define REG_CLKDIV1 (CLK_BA + 0x28)
+
+#endif /* __ASM_ARCH_REGS_CLOCK_H */
diff -Npur linux-2.6.29/arch/arm/mach-w90x900/include/mach/regs-usb.h
linux-2.6.30-rc3/arch/arm/mach-w90x900/include/mach/regs-usb.h
--- linux-2.6.29/arch/arm/mach-w90x900/include/mach/regs-usb.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.30-rc3/arch/arm/mach-w90x900/include/mach/regs-usb.h
2009-04-27
14:41:11.000000000 +0800
@@ -0,0 +1,37 @@
+/*
+ * arch/arm/mach-w90x900/include/mach/regs-usb.h
+ *
+ * Copyright (c) 2008 Nuvoton technology corporation
+ * All rights reserved.
+ *
+ * Wan ZongShun <mcuos.com@xxxxxxxxx>
+ *
+ * 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.
+ *
+ */
+
+#ifndef __ASM_ARCH_REGS_USB_H
+#define __ASM_ARCH_REGS_USB_H
+
+/* usb Control Registers */
+#define USBH_BA W90X900_VA_USBEHCIHOST
+#define USBD_BA W90X900_VA_USBDEV
+#define USBO_BA W90X900_VA_USBOHCIHOST
+
+/* USB Host Control Registers */
+#define REG_UPSCR0 (USBH_BA+0x064)
+#define REG_UPSCR1 (USBH_BA+0x068)
+#define REG_USBPCR0 (USBH_BA+0x0C4)
+#define REG_USBPCR1 (USBH_BA+0x0C8)
+
+/* USBH OHCI Control Registers */
+#define REG_OpModEn (USBO_BA+0x204)
+/*This bit controls the polarity of over
+*current flag from external power IC.
+*/
+#define OCALow 0x08
+
+#endif /* __ASM_ARCH_REGS_USB_H */
diff -Npur linux-2.6.29/drivers/usb/Kconfig linux-2.6.30-rc3/drivers/usb/Kconfig
--- linux-2.6.29/drivers/usb/Kconfig 2009-04-27 14:11:12.000000000 +0800
+++ linux-2.6.30-rc3/drivers/usb/Kconfig 2009-04-27
13:43:53.000000000 +0800
@@ -38,6 +38,7 @@ config USB_ARCH_HAS_OHCI
default y if ARCH_AT91
default y if ARCH_PNX4008 && I2C
default y if MFD_TC6393XB
+ default y if ARCH_W90X900
# PPC:
default y if STB03xxx
default y if PPC_MPC52xx
@@ -57,6 +58,7 @@ config USB_ARCH_HAS_EHCI
default y if PPC_83xx
default y if SOC_AU1200
default y if ARCH_IXP4XX
+ default y if ARCH_W90X900
default PCI
# ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface.
diff -Npur linux-2.6.29/drivers/usb/host/Kconfig
linux-2.6.30-rc3/drivers/usb/host/Kconfig
--- linux-2.6.29/drivers/usb/host/Kconfig 2009-04-27
14:11:12.000000000 +0800
+++ linux-2.6.30-rc3/drivers/usb/host/Kconfig 2009-04-27
15:09:06.000000000 +0800
@@ -93,6 +93,12 @@ config USB_EHCI_HCD_PPC_OF
Enables support for the USB controller present on the PowerPC
OpenFirmware platform bus.
+config USB_W90X900_EHCI
+ bool "W90X900(W90P910) EHCI support"
+ depends on USB_EHCI_HCD && ARCH_W90X900
+ ---help---
+ Enables support for the W90X900 USB controller
+
config USB_OXU210HP_HCD
tristate "OXU210HP HCD support"
depends on USB
@@ -220,6 +226,12 @@ config USB_OHCI_LITTLE_ENDIAN
default n if STB03xxx || PPC_MPC52xx
default y
+config USB_W90X900_OHCI
+ bool "W90X900(W90P910) OHCI support"
+ depends on USB_OHCI_HCD && ARCH_W90X900
+ ---help---
+ Enables support for the W90X900 USB controller
+
config USB_UHCI_HCD
tristate "UHCI HCD (most Intel and VIA) support"
depends on USB && PCI
diff -Npur linux-2.6.29/drivers/usb/host/ehci-hcd.c
linux-2.6.30-rc3/drivers/usb/host/ehci-hcd.c
--- linux-2.6.29/drivers/usb/host/ehci-hcd.c 2009-04-27
14:11:12.000000000 +0800
+++ linux-2.6.30-rc3/drivers/usb/host/ehci-hcd.c 2009-04-27
13:47:02.000000000 +0800
@@ -1072,6 +1072,11 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ixp4xx_ehci_driver
#endif
+#ifdef CONFIG_USB_W90X900_EHCI
+#include "ehci-w90x900.c"
+#define PLATFORM_DRIVER ehci_hcd_w90x900_driver
+#endif
+
#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER)
#error "missing bus glue for ehci-hcd"
diff -Npur linux-2.6.29/drivers/usb/host/ehci-w90x900.c
linux-2.6.30-rc3/drivers/usb/host/ehci-w90x900.c
--- linux-2.6.29/drivers/usb/host/ehci-w90x900.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.30-rc3/drivers/usb/host/ehci-w90x900.c 2009-04-27
15:10:39.000000000 +0800
@@ -0,0 +1,175 @@
+/*
+ * linux/driver/usb/host/ehci-w90x900.c
+ *
+ * Copyright (c) 2008 Nuvoton technology corporation
+ * All rights reserved.
+ *
+ * Wan ZongShun <mcuos.com@xxxxxxxxx>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/platform_device.h>
+#include <mach/regs-clock.h>
+#include <mach/regs-usb.h>
+
+int usb_w90x900_probe(const struct hc_driver *driver,
+ struct platform_device *pdev)
+{
+ struct usb_hcd *hcd;
+ struct ehci_hcd *ehci;
+ int retval;
+
+ /* enable USB Host clock */
+ __raw_writel(__raw_readl(REG_CLKEN) | 0x200, REG_CLKEN);
+
+ if (pdev->resource[1].flags != IORESOURCE_IRQ) {
+ pr_debug("resource[1] is not IORESOURCE_IRQ");
+ retval = -ENOMEM;
+ }
+
+ hcd = usb_create_hcd(driver, &pdev->dev, "w90x900 EHCI");
+ if (!hcd) {
+ retval = -ENOMEM;
+ goto err1;
+ }
+
+
+ hcd->rsrc_start = pdev->resource[0].start;
+ hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
+
+ if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
+ pr_debug("request_mem_region failed");
+ retval = -EBUSY;
+ goto err2;
+ }
+
+ hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+ if (hcd->regs == NULL) {
+ pr_debug("error mapping memory\n");
+ retval = -EFAULT;
+ goto err3;
+ }
+
+ ehci = hcd_to_ehci(hcd);
+ ehci->caps = hcd->regs;
+ ehci->regs = hcd->regs +
+ HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
+
+ __raw_writel(OCALow, REG_OpModEn);
+
+ /* enable PHY 0 */
+ __raw_writel(0x160, REG_USBPCR0);
+
+ /* enable PHY 1 */
+ __raw_writel(0x520, REG_USBPCR1);
+
+ ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
+ ehci->sbrn = 0x20;
+
+ retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED);
+
+
+ if (retval != 0)
+ goto err4;
+
+ ehci_writel(ehci, 1, &ehci->regs->configured_flag);
+
+ return retval;
+err4:
+ iounmap(hcd->regs);
+err3:
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+err2:
+ usb_put_hcd(hcd);
+err1:
+
+ return retval;
+}
+
+void usb_w90x900_remove(struct usb_hcd *hcd, struct platform_device *pdev)
+{
+ usb_remove_hcd(hcd);
+ iounmap(hcd->regs);
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+ usb_put_hcd(hcd);
+}
+
+
+static const struct hc_driver ehci_w90x900_hc_driver = {
+ .description = hcd_name,
+ .product_desc = "Nuvoton w90x900 EHCI Host Controller",
+ .hcd_priv_size = sizeof(struct ehci_hcd),
+
+ /*
+ * generic hardware linkage
+ */
+ .irq = ehci_irq,
+ .flags = HCD_USB2|HCD_MEMORY,
+
+ /*
+ * basic lifecycle operations
+ */
+ .reset = ehci_init,
+ .start = ehci_run,
+
+ .stop = ehci_stop,
+ .shutdown = ehci_shutdown,
+
+ /*
+ * managing i/o requests and associated device resources
+ */
+ .urb_enqueue = ehci_urb_enqueue,
+ .urb_dequeue = ehci_urb_dequeue,
+ .endpoint_disable = ehci_endpoint_disable,
+
+ /*
+ * scheduling support
+ */
+ .get_frame_number = ehci_get_frame,
+
+ /*
+ * root hub support
+ */
+ .hub_status_data = ehci_hub_status_data,
+ .hub_control = ehci_hub_control,
+#ifdef CONFIG_PM
+ .bus_suspend = ehci_bus_suspend,
+ .bus_resume = ehci_bus_resume,
+#endif
+ .relinquish_port = ehci_relinquish_port,
+ .port_handed_over = ehci_port_handed_over,
+};
+
+static int ehci_w90x900_probe(struct platform_device *pdev)
+{
+ if (usb_disabled())
+ return -ENODEV;
+
+ return usb_w90x900_probe(&ehci_w90x900_hc_driver, pdev);
+}
+
+static int ehci_w90x900_remove(struct platform_device *pdev)
+{
+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+ usb_w90x900_remove(hcd, pdev);
+
+ return 0;
+}
+
+MODULE_ALIAS("platform:w90x900-ehci");
+
+static struct platform_driver ehci_hcd_w90x900_driver = {
+
+ .probe = ehci_w90x900_probe,
+ .remove = ehci_w90x900_remove,
+ .driver = {
+ .name = "w90x900-ehci",
+ .owner = THIS_MODULE,
+ },
+};
diff -Npur linux-2.6.29/drivers/usb/host/ohci-hcd.c
linux-2.6.30-rc3/drivers/usb/host/ohci-hcd.c
--- linux-2.6.29/drivers/usb/host/ohci-hcd.c 2009-04-27
14:11:12.000000000 +0800
+++ linux-2.6.30-rc3/drivers/usb/host/ohci-hcd.c 2009-04-27
13:47:25.000000000 +0800
@@ -1081,6 +1081,11 @@ MODULE_LICENSE ("GPL");
#define TMIO_OHCI_DRIVER ohci_hcd_tmio_driver
#endif
+#ifdef CONFIG_USB_W90X900_OHCI
+#include "ohci-w90x900.c"
+#define PLATFORM_DRIVER ohci_hcd_w90x900_driver
+#endif
+
#if !defined(PCI_DRIVER) && \
!defined(PLATFORM_DRIVER) && \
!defined(OF_PLATFORM_DRIVER) && \
diff -Npur linux-2.6.29/drivers/usb/host/ohci-w90x900.c
linux-2.6.30-rc3/drivers/usb/host/ohci-w90x900.c
--- linux-2.6.29/drivers/usb/host/ohci-w90x900.c 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6.30-rc3/drivers/usb/host/ohci-w90x900.c 2009-04-27
15:29:00.000000000 +0800
@@ -0,0 +1,171 @@
+/*
+ * linux/driver/usb/host/ohci-w90x900.c
+ *
+ * Copyright (c) 2008 Nuvoton technology corporation
+ * All rights reserved.
+ *
+ * Wan ZongShun <mcuos.com@xxxxxxxxx>
+ *
+ * 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.
+ *
+ */
+
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+
+static int usb_hcd_w90x900_probe(const struct hc_driver *driver,
+ struct platform_device *pdev)
+{
+ int retval;
+ struct usb_hcd *hcd;
+ struct ohci_hcd *ohci ;
+
+ hcd = usb_create_hcd(driver, &pdev->dev, "w90x900 ohci");
+ if (!hcd)
+ return -ENOMEM;
+
+ hcd->rsrc_start = pdev->resource[0].start;
+ hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
+
+ if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
+ retval = -EBUSY;
+ goto err1;
+ }
+
+ hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+ if (!hcd->regs) {
+ retval = -ENOMEM;
+ goto err2;
+ }
+
+
+ ohci = hcd_to_ohci(hcd);
+ ohci_hcd_init(ohci);
+
+ retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED);
+
+ if (retval != 0)
+ goto err3;
+
+ return retval;
+
+err3:
+ iounmap(hcd->regs);
+err2:
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+err1:
+ usb_put_hcd(hcd);
+ return retval;
+}
+
+static void usb_hcd_w90x900_remove(struct usb_hcd *hcd,
+ struct platform_device *dev)
+{
+ usb_remove_hcd(hcd);
+ iounmap(hcd->regs);
+ release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+ usb_put_hcd(hcd);
+}
+
+
+static int ohci_w90x900_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) {
+ err("can't start %s", hcd->self.bus_name);
+ ohci_stop(hcd);
+ return ret;
+ }
+
+ return ret;
+}
+
+
+static const struct hc_driver ohci_w90x900_hc_driver = {
+ .description = hcd_name,
+ .product_desc = "Nuvoton w90x900 ohci Host Controller",
+ .hcd_priv_size = sizeof(struct ohci_hcd),
+
+ /*
+ * generic hardware linkage
+ */
+ .irq = ohci_irq,
+ .flags = HCD_USB11 | HCD_MEMORY,
+
+ /*
+ * basic lifecycle operations
+ */
+ .start = ohci_w90x900_start,
+ .stop = ohci_stop,
+ .shutdown = ohci_shutdown,
+ /*
+ * managing i/o requests and associated device resources
+ */
+ .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,
+#ifdef CONFIG_PM
+ .bus_suspend = ohci_bus_suspend,
+ .bus_resume = ohci_bus_resume,
+#endif
+ .start_port_reset = ohci_start_port_reset,
+};
+
+
+static int ohci_hcd_w90x900_drv_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ if (usb_disabled())
+ return -ENODEV;
+
+ ret = usb_hcd_w90x900_probe(&ohci_w90x900_hc_driver, pdev);
+ return ret;
+}
+
+static int ohci_hcd_w90x900_drv_remove(struct platform_device *pdev)
+{
+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+ usb_hcd_w90x900_remove(hcd, pdev);
+ return 0;
+}
+
+
+MODULE_ALIAS("platform:w90x900-ohci");
+
+static struct platform_driver ohci_hcd_w90x900_driver = {
+ .probe = ohci_hcd_w90x900_drv_probe,
+ .remove = ohci_hcd_w90x900_drv_remove,
+#ifdef CONFIG_PM
+
+#endif
+ .driver = {
+ .name = "w90x900-ohci",
+ .owner = THIS_MODULE,
+ },
+};
+
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