diff options
| author | Vincent Chen <vincent.chen@sifive.com> | 2021-07-08 04:08:21 +0300 |
|---|---|---|
| committer | Leo Yu-Chi Liang <ycliang@andestech.com> | 2021-07-21 17:25:15 +0300 |
| commit | 219cb173114c9cfaf1dc7fed21281f2c43c88c9f (patch) | |
| tree | 7e7ffa7262976199007ddef4ab1b403747bc0d26 /board/sifive | |
| parent | d3c96b9b46a878e59ecb0c267fe846bbb556f963 (diff) | |
| download | u-boot-219cb173114c9cfaf1dc7fed21281f2c43c88c9f.tar.xz | |
board: sifive: unmatched: reset USB hub, PCIe-USB bridge, and ULPI device in SPL
Ensure USB hub, PCIe-USB bridge, and ULPI device to be reset
even if the rebooting is without power-cycling.
Signed-off-by: Vincent Chen <vincent.chen@sifive.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Diffstat (limited to 'board/sifive')
| -rw-r--r-- | board/sifive/unmatched/spl.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/board/sifive/unmatched/spl.c b/board/sifive/unmatched/spl.c index b598f9f614..d5663274cd 100644 --- a/board/sifive/unmatched/spl.c +++ b/board/sifive/unmatched/spl.c @@ -16,6 +16,9 @@ #include <asm/arch/gpio.h> #include <asm/arch/spl.h> +#define UBRDG_RESET SIFIVE_GENERIC_GPIO_NR(0, 7) +#define ULPI_RESET SIFIVE_GENERIC_GPIO_NR(0, 9) +#define UHUB_RESET SIFIVE_GENERIC_GPIO_NR(0, 11) #define GEM_PHY_RESET SIFIVE_GENERIC_GPIO_NR(0, 12) #define MODE_SELECT_REG 0x1000 @@ -61,6 +64,21 @@ static inline int spl_gemgxl_init(void) return ret; } +static inline int spl_usb_pcie_bridge_init(void) +{ + return spl_reset_device_by_gpio("usb_pcie_bridge_reset", UBRDG_RESET, 3000); +} + +static inline int spl_usb_hub_init(void) +{ + return spl_reset_device_by_gpio("usb_hub_reset", UHUB_RESET, 100); +} + +static inline int spl_ulpi_init(void) +{ + return spl_reset_device_by_gpio("ulpi_reset", ULPI_RESET, 1); +} + int spl_board_init_f(void) { int ret; @@ -77,6 +95,24 @@ int spl_board_init_f(void) goto end; } + ret = spl_usb_pcie_bridge_init(); + if (ret) { + debug("USB Bridge (ASM1042A) init failed: %d\n", ret); + goto end; + } + + ret = spl_usb_hub_init(); + if (ret) { + debug("USB Hub (ASM1074) init failed: %d\n", ret); + goto end; + } + + ret = spl_ulpi_init(); + if (ret) { + debug("USB 2.0 PHY (USB3320C) init failed: %d\n", ret); + goto end; + } + end: return ret; } |