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authorJeffy Chen <jeffy.chen@rock-chips.com>2016-01-14 10:19:40 +0800
committerSimon Glass <sjg@chromium.org>2016-01-21 20:05:26 -0700
commite68f203667c74ab2970a895f895c7b36a818efee (patch)
tree4bb4304ac5fc6fdbcfe977475d73ab18760344d3 /board/kylin
parent197e14ea7ae76cc0bc18d601495ca01b097b0b2f (diff)
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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/kylin')
-rw-r--r--board/kylin/kylin_rk3036/kylin_rk3036.c32
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;