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| author | Jeffy Chen <jeffy.chen@rock-chips.com> | 2016-01-14 10:19:40 +0800 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2016-01-21 20:05:26 -0700 |
| commit | e68f203667c74ab2970a895f895c7b36a818efee (patch) | |
| tree | 4bb4304ac5fc6fdbcfe977475d73ab18760344d3 /board | |
| parent | 197e14ea7ae76cc0bc18d601495ca01b097b0b2f (diff) | |
| download | u-boot-imx-e68f203667c74ab2970a895f895c7b36a818efee.zip u-boot-imx-e68f203667c74ab2970a895f895c7b36a818efee.tar.gz u-boot-imx-e68f203667c74ab2970a895f895c7b36a818efee.tar.bz2 | |
rockchip: kylin: Check fastboot request
We will save boot mode flag in grf's os_reg[4], if fastboot
requested or fastboot key pressed, try to enter fastboot mode
at preboot stage.
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'board')
| -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 40d6b52..2a25871 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; |