diff options
Diffstat (limited to 'board/kylin/kylin_rk3036/kylin_rk3036.c')
| -rw-r--r-- | board/kylin/kylin_rk3036/kylin_rk3036.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/board/kylin/kylin_rk3036/kylin_rk3036.c b/board/kylin/kylin_rk3036/kylin_rk3036.c index 40d6b521bc..2a258710ac 100644 --- a/board/kylin/kylin_rk3036/kylin_rk3036.c +++ b/board/kylin/kylin_rk3036/kylin_rk3036.c @@ -8,10 +8,14 @@ #include <dm.h> #include <asm/io.h> #include <asm/arch/uart.h> +#include <asm/arch-rockchip/grf_rk3036.h> #include <asm/arch/sdram_rk3036.h> +#include <asm/gpio.h> DECLARE_GLOBAL_DATA_PTR; +#define GRF_BASE 0x20008000 + void get_ddr_config(struct rk3036_ddr_config *config) { /* K4B4G1646Q config */ @@ -28,6 +32,34 @@ void get_ddr_config(struct rk3036_ddr_config *config) config->bw = 1; } +#define FASTBOOT_KEY_GPIO 93 + +int fastboot_key_pressed(void) +{ + gpio_request(FASTBOOT_KEY_GPIO, "fastboot_key"); + gpio_direction_input(FASTBOOT_KEY_GPIO); + return !gpio_get_value(FASTBOOT_KEY_GPIO); +} + +#define ROCKCHIP_BOOT_MODE_FASTBOOT 0x5242C309 + +int board_late_init(void) +{ + struct rk3036_grf * const grf = (void *)GRF_BASE; + int boot_mode = readl(&grf->os_reg[4]); + + /* Clear boot mode */ + writel(0, &grf->os_reg[4]); + + if (boot_mode == ROCKCHIP_BOOT_MODE_FASTBOOT || + fastboot_key_pressed()) { + printf("enter fastboot!\n"); + setenv("preboot", "setenv preboot; fastboot usb0"); + } + + return 0; +} + int board_init(void) { return 0; |