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| author | Bo Shen <voice.shen@atmel.com> | 2013-10-21 16:13:59 +0800 |
|---|---|---|
| committer | Andreas Bießmann <andreas.devel@googlemail.com> | 2013-11-04 20:32:35 +0100 |
| commit | d9bef0ad2daa2f6f0b635be12518da755ddcbdc1 (patch) | |
| tree | 4b19de31dd7964da2c8b9328e7e7892a814a94ae | |
| parent | 32e4f6bf2e35e99e1742c005e1ede4e0cf5f066c (diff) | |
| download | u-boot-imx-d9bef0ad2daa2f6f0b635be12518da755ddcbdc1.zip u-boot-imx-d9bef0ad2daa2f6f0b635be12518da755ddcbdc1.tar.gz u-boot-imx-d9bef0ad2daa2f6f0b635be12518da755ddcbdc1.tar.bz2 | |
arm: atmel: at91sam9n12ek: add usb host support
Add usb host support for at91sam9n12ek board.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| -rw-r--r-- | arch/arm/include/asm/arch-at91/at91_pmc.h | 2 | ||||
| -rw-r--r-- | board/atmel/at91sam9n12ek/at91sam9n12ek.c | 11 | ||||
| -rw-r--r-- | drivers/usb/host/ohci-at91.c | 11 | ||||
| -rw-r--r-- | include/configs/at91sam9n12ek.h | 12 |
4 files changed, 34 insertions, 2 deletions
diff --git a/arch/arm/include/asm/arch-at91/at91_pmc.h b/arch/arm/include/asm/arch-at91/at91_pmc.h index 003920c..7b36f74 100644 --- a/arch/arm/include/asm/arch-at91/at91_pmc.h +++ b/arch/arm/include/asm/arch-at91/at91_pmc.h @@ -233,6 +233,8 @@ typedef struct at91_pmc { #endif #define AT91_PMC_USBS_USB_PLLA (0x0) /* USB Clock Input is PLLA */ #define AT91_PMC_USBS_USB_UPLL (0x1) /* USB Clock Input is UPLL */ +#define AT91_PMC_USBS_USB_PLLB (0x1) /* USB Clock Input is PLLB, AT91SAM9N12 only */ +#define AT91_PMC_USB_DIV_2 (0x1 << 8) /* USB Clock divided by 2 */ #define AT91_PMC_USBDIV_8 (0x7 << 8) /* USB Clock divided by 8 */ #define AT91_PMC_USBDIV_10 (0x9 << 8) /* USB Clock divided by 10 */ diff --git a/board/atmel/at91sam9n12ek/at91sam9n12ek.c b/board/atmel/at91sam9n12ek/at91sam9n12ek.c index 2ec32eb..9adc992 100644 --- a/board/atmel/at91sam9n12ek/at91sam9n12ek.c +++ b/board/atmel/at91sam9n12ek/at91sam9n12ek.c @@ -199,6 +199,13 @@ void at91sam9n12ek_ks8851_hw_init(void) } #endif +#ifdef CONFIG_USB_ATMEL +void at91sam9n12ek_usb_hw_init(void) +{ + at91_set_pio_output(AT91_PIO_PORTB, 7, 0); +} +#endif + int board_early_init_f(void) { /* Enable clocks for all PIOs */ @@ -230,6 +237,10 @@ int board_init(void) at91sam9n12ek_ks8851_hw_init(); #endif +#ifdef CONFIG_USB_ATMEL + at91sam9n12ek_usb_hw_init(); +#endif + return 0; } diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 9e90d59..05d6ff2 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -20,11 +20,14 @@ int usb_cpu_init(void) #if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \ defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20) || \ - defined(CONFIG_AT91SAM9261) + defined(CONFIG_AT91SAM9261) || defined(CONFIG_AT91SAM9N12) /* Enable PLLB */ writel(get_pllb_init(), &pmc->pllbr); while ((readl(&pmc->sr) & AT91_PMC_LOCKB) != AT91_PMC_LOCKB) ; +#ifdef CONFIG_AT91SAM9N12 + writel(AT91_PMC_USBS_USB_PLLB | AT91_PMC_USB_DIV_2, &pmc->usb); +#endif #elif defined(CONFIG_AT91SAM9G45) || defined(CONFIG_AT91SAM9M10G45) || \ defined(CONFIG_AT91SAM9X5) || defined(CONFIG_SAMA5D3) /* Enable UPLL */ @@ -71,7 +74,11 @@ int usb_cpu_stop(void) #endif #if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \ - defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20) + defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20) || \ + defined(CONFIG_AT91SAM9N12) +#ifdef CONFIG_AT91SAM9N12 + writel(0, &pmc->usb); +#endif /* Disable PLLB */ writel(0, &pmc->pllbr); while ((readl(&pmc->sr) & AT91_PMC_LOCKB) != 0) diff --git a/include/configs/at91sam9n12ek.h b/include/configs/at91sam9n12ek.h index 28a7925..cc79f8b 100644 --- a/include/configs/at91sam9n12ek.h +++ b/include/configs/at91sam9n12ek.h @@ -83,6 +83,7 @@ #define CONFIG_CMD_SF #define CONFIG_CMD_MMC #define CONFIG_CMD_FAT +#define CONFIG_CMD_USB #define CONFIG_NR_DRAM_BANKS 1 #define CONFIG_SYS_SDRAM_BASE 0x20000000 @@ -163,6 +164,17 @@ #define CONFIG_SYS_MEMTEST_START CONFIG_SYS_SDRAM_BASE #define CONFIG_SYS_MEMTEST_END 0x26e00000 +/* USB host */ +#ifdef CONFIG_CMD_USB +#define CONFIG_USB_ATMEL +#define CONFIG_USB_OHCI_NEW +#define CONFIG_SYS_USB_OHCI_CPU_INIT +#define CONFIG_SYS_USB_OHCI_REGS_BASE ATMEL_BASE_OHCI +#define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91sam9n12" +#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 1 +#define CONFIG_USB_STORAGE +#endif + #ifdef CONFIG_SYS_USE_SPIFLASH /* bootstrap + u-boot + env + linux in dataflash on CS0 */ |