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MIPS: ath79: add USB platform setup code for AR934X 

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4172/
Signed-off-by: John Crispin <blogic@openwrt.org>
hifive-unleashed-5.1
Gabor Juhos 2012-08-04 15:03:56 +00:00 committed by John Crispin
parent 8d3e03e186
commit 00ffed582f
2 changed files with 35 additions and 0 deletions
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28
arch/mips/ath79/dev-usb.c
View File

@ -193,6 +193,32 @@ static void __init ar933x_usb_setup(void)
platform_device_register(&ath79_ehci_device);
}
static void __init ar934x_usb_setup(void)
{
u32 bootstrap;
bootstrap = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
if (bootstrap & AR934X_BOOTSTRAP_USB_MODE_DEVICE)
return;
ath79_device_reset_set(AR934X_RESET_USBSUS_OVERRIDE);
udelay(1000);
ath79_device_reset_clear(AR934X_RESET_USB_PHY);
udelay(1000);
ath79_device_reset_clear(AR934X_RESET_USB_PHY_ANALOG);
udelay(1000);
ath79_device_reset_clear(AR934X_RESET_USB_HOST);
udelay(1000);
ath79_usb_init_resource(ath79_ehci_resources, AR934X_EHCI_BASE,
AR934X_EHCI_SIZE, ATH79_CPU_IRQ_USB);
ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
platform_device_register(&ath79_ehci_device);
}
void __init ath79_register_usb(void)
{
if (soc_is_ar71xx())
@ -205,6 +231,8 @@ void __init ath79_register_usb(void)
ar913x_usb_setup();
else if (soc_is_ar933x())
ar933x_usb_setup();
else if (soc_is_ar934x())
ar934x_usb_setup();
else
BUG();
}

7
arch/mips/include/asm/mach-ath79/ar71xx_regs.h
View File

@ -63,6 +63,8 @@
#define AR934X_WMAC_BASE (AR71XX_APB_BASE + 0x00100000)
#define AR934X_WMAC_SIZE 0x20000
#define AR934X_EHCI_BASE 0x1b000000
#define AR934X_EHCI_SIZE 0x200
/*
* DDR_CTRL block
@ -288,6 +290,11 @@
#define AR933X_RESET_USB_PHY BIT(4)
#define AR933X_RESET_USBSUS_OVERRIDE BIT(3)
#define AR934X_RESET_USB_PHY_ANALOG BIT(11)
#define AR934X_RESET_USB_HOST BIT(5)
#define AR934X_RESET_USB_PHY BIT(4)
#define AR934X_RESET_USBSUS_OVERRIDE BIT(3)
#define AR933X_BOOTSTRAP_REF_CLK_40 BIT(0)
#define AR934X_BOOTSTRAP_SW_OPTION8 BIT(23)