摘要：
KrisFei[RK3399][Android7.1]Uboot启动过程的摘要在板上_fbt_检查预启动u-bootoardockchipcommonkloaderkey中电源键的状态。c_可能是未使用的统计_配置_岩石；__可能是未使用的统计_配置_恢复；__可能是unus
KrisFei [RK3399][Android7.1] Uboot启动过程小结
在board_fbt_preboot中 检测power键的状态
u-bootoard ockchipcommon kloaderkey.c
__maybe_unused static key_config key_rockusb;
__maybe_unused static key_config key_recovery;
__maybe_unused static key_config key_fastboot;
__maybe_unused static key_config key_power;
开机就循环 检测key_power
diff --git a/u-boot/board/rockchip/common/rkboot/fastboot.c b/u-boot/board/rockchip/common/rkboot/fastboot.c
index ce6a0a1..5c07172 100755
--- a/u-boot/board/rockchip/common/rkboot/fastboot.c
+++ b/u-boot/board/rockchip/common/rkboot/fastboot.c
@@ -429,6 +429,12 @@ static void board_fbt_low_power_off(void)
}
#endif /* CONFIG_RK_POWER */
+#define POWER_ON_KEY_DECT_BOOT
+
+#ifdef POWER_ON_KEY_DECT_BOOT
+extern void PowerOnKeyDectBoot(void);
+#endif
+
bool board_fbt_exit_uboot_charge(void)
{
int ret;
@@ -459,6 +465,7 @@ bool board_fbt_exit_uboot_charge(void)
return false;
}
+
/*
* Determine if we should enter fastboot mode based on board specific
* key press or parameter left in memory from previous boot.
@@ -470,6 +477,7 @@ bool board_fbt_exit_uboot_charge(void)
void board_fbt_preboot(void)
{
enum fbt_reboot_type frt;
+ int frt2 = 0;
__maybe_unused bool charge_enable = false;
#ifdef CONFIG_UBOOT_CHARGE
int charge_node; /*device node*/
@@ -483,6 +491,7 @@ void board_fbt_preboot(void)
#endif
frt = board_fbt_get_reboot_type();
+ frt2 = frt;
/* cold boot */
if (frt == FASTBOOT_REBOOT_UNKNOWN)
charge_enable = true;
@@ -498,6 +507,15 @@ void board_fbt_preboot(void)
board_fbt_set_reboot_type(FASTBOOT_REBOOT_NORMAL);
}
+printf("board_fbt_preboot:%d
",frt);
+
+ if(frt2 == FASTBOOT_REBOOT_UNKNOWN)
+ {
+ #ifdef POWER_ON_KEY_DECT_BOOT
+ PowerOnKeyDectBoot();
+ #endif
+ }
+
#ifdef CONFIG_RK_POWER
board_fbt_low_power_check();
#endif
diff --git a/u-boot/board/rockchip/common/rkloader/key.c b/u-boot/board/rockchip/common/rkloader/key.c
index 3dcb758..0a14c0b 100755
--- a/u-boot/board/rockchip/common/rkloader/key.c
+++ b/u-boot/board/rockchip/common/rkloader/key.c
@@ -163,6 +163,17 @@ __maybe_unused static void FastbootKeyInit(void)
key_fastboot.key.adc.ctrl = SARADC_BASE + 8;
}
+void PowerOnKeyDectBoot(void)
+{
+ int state=1;
+
+ while(1)
+ {
+ state = gpio_get_value(key_power.key.ioint.gpio);
+ if(state == 0)
+ break;
+ }
+}
__maybe_unused static void PowerKeyInit(void)
{