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board: sifive: unmatched: reset USB hub, PCIe-USB bridge, and ULPI device in SPL

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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>
This commit is contained in:
Vincent Chen 2021-07-08 09:08:21 +08:00 • committed by Leo Yu-Chi Liang
parent d3c96b9b46
commit 219cb17311
1 changed files with 36 additions and 0 deletions
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36
board/sifive/unmatched/spl.c
View file

@ -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;
}