ARM: shmobile: marzen: add USB EHCI driver support

This patch supports CN21/CN22 USB 2.0 (port 0/1/2),
and enable USB momery on defconfig

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
This commit is contained in:
Kuninori Morimoto 2012-10-29 01:15:34 -07:00 committed by Simon Horman
parent b5ce635d45
commit 94e1f7fbe0
3 changed files with 114 additions and 1 deletions

View File

@ -47,6 +47,8 @@ CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_FARADAY is not set
@ -82,6 +84,10 @@ CONFIG_USB=y
CONFIG_USB_RCAR_PHY=y
CONFIG_MMC=y
CONFIG_MMC_SDHI=y
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_HCD_PLATFORM=y
CONFIG_USB_STORAGE=y
CONFIG_UIO=y
CONFIG_UIO_PDRV_GENIRQ=y
# CONFIG_IOMMU_SUPPORT is not set

View File

@ -29,6 +29,7 @@ config ARCH_R8A7779
select ARM_GIC
select CPU_V7
select SH_CLK_CPG
select USB_ARCH_HAS_EHCI
config ARCH_EMEV2
bool "Emma Mobile EV2"

View File

@ -34,6 +34,9 @@
#include <linux/spi/sh_hspi.h>
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/mfd/tmio.h>
#include <linux/usb/otg.h>
#include <linux/usb/ehci_pdriver.h>
#include <linux/pm_runtime.h>
#include <mach/hardware.h>
#include <mach/r8a7779.h>
#include <mach/common.h>
@ -172,6 +175,101 @@ static struct platform_device *marzen_devices[] __initdata = {
&usb_phy_device,
};
/* USB */
static struct usb_phy *phy;
static int usb_power_on(struct platform_device *pdev)
{
if (!phy)
return -EIO;
pm_runtime_enable(&pdev->dev);
pm_runtime_get_sync(&pdev->dev);
usb_phy_init(phy);
return 0;
}
static void usb_power_off(struct platform_device *pdev)
{
if (!phy)
return;
usb_phy_shutdown(phy);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
}
static struct usb_ehci_pdata ehcix_pdata = {
.power_on = usb_power_on,
.power_off = usb_power_off,
.power_suspend = usb_power_off,
};
static struct resource ehci0_resources[] = {
[0] = {
.start = 0xffe70000,
.end = 0xffe70400 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = gic_spi(44),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device ehci0_device = {
.name = "ehci-platform",
.id = 0,
.dev = {
.dma_mask = &ehci0_device.dev.coherent_dma_mask,
.coherent_dma_mask = 0xffffffff,
.platform_data = &ehcix_pdata,
},
.num_resources = ARRAY_SIZE(ehci0_resources),
.resource = ehci0_resources,
};
static struct resource ehci1_resources[] = {
[0] = {
.start = 0xfff70000,
.end = 0xfff70400 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = gic_spi(45),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device ehci1_device = {
.name = "ehci-platform",
.id = 1,
.dev = {
.dma_mask = &ehci1_device.dev.coherent_dma_mask,
.coherent_dma_mask = 0xffffffff,
.platform_data = &ehcix_pdata,
},
.num_resources = ARRAY_SIZE(ehci1_resources),
.resource = ehci1_resources,
};
static struct platform_device *marzen_late_devices[] __initdata = {
&ehci0_device,
&ehci1_device,
};
void __init marzen_init_late(void)
{
/* get usb phy */
phy = usb_get_phy(USB_PHY_TYPE_USB2);
shmobile_init_late();
platform_add_devices(marzen_late_devices,
ARRAY_SIZE(marzen_late_devices));
}
static void __init marzen_init(void)
{
regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers,
@ -209,6 +307,14 @@ static void __init marzen_init(void)
gpio_request(GPIO_FN_HSPI_TX0, NULL);
gpio_request(GPIO_FN_HSPI_RX0, NULL);
/* USB (CN21) */
gpio_request(GPIO_FN_USB_OVC0, NULL);
gpio_request(GPIO_FN_USB_OVC1, NULL);
gpio_request(GPIO_FN_USB_OVC2, NULL);
/* USB (CN22) */
gpio_request(GPIO_FN_USB_PENC2, NULL);
r8a7779_add_standard_devices();
platform_add_devices(marzen_devices, ARRAY_SIZE(marzen_devices));
}
@ -221,6 +327,6 @@ MACHINE_START(MARZEN, "marzen")
.init_irq = r8a7779_init_irq,
.handle_irq = gic_handle_irq,
.init_machine = marzen_init,
.init_late = shmobile_init_late,
.init_late = marzen_init_late,
.timer = &shmobile_timer,
MACHINE_END