board: roc-pc-rk3399: Add support for onboard LED's and push button to indicate power...

Added support for onboard LED's and push button. When powered board will be
in low power mode(yellow LED), on button press, board enters full power mode
(red LED) and boots u-boot.

Signed-off-by: Suniel Mahesh <sunil@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

diff --git a/arch/arm/mach-rockchip/tpl.c b/arch/arm/mach-rockchip/tpl.c
index 31a3eb4c285076a33a97af7189343dec0ca5050b..a2b8d31cbd79151ad0db40f6127a1e1f18860e66 100644 (file)
--- a/arch/arm/mach-rockchip/tpl.c
+++ b/arch/arm/mach-rockchip/tpl.c
@@ -40,11 +40,18 @@ __weak void rockchip_stimer_init(void)
               TIMER_CONTROL_REG);
 }
 
+__weak int board_early_init_f(void)
+{
+       return 0;
+}
+
 void board_init_f(ulong dummy)
 {
        struct udevice *dev;
        int ret;
 
+       board_early_init_f();
+
 #if defined(CONFIG_DEBUG_UART) && defined(CONFIG_TPL_SERIAL_SUPPORT)
        /*
         * Debug UART can be used from here if required:

diff --git a/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c b/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c
index d47dba8b91c28466acb0123dc9961f5709814de8..de9185a7cee0f6c51048c185b5ea158cb8f44396 100644 (file)
--- a/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c
+++ b/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c
@@ -7,6 +7,10 @@
 #include <dm.h>
 #include <asm/arch-rockchip/periph.h>
 #include <power/regulator.h>
+#include <spl_gpio.h>
+#include <asm/io.h>
+#include <asm/arch-rockchip/gpio.h>
+#include <asm/arch-rockchip/grf_rk3399.h>
 
 #ifndef CONFIG_SPL_BUILD
 int board_early_init_f(void)
@@ -27,3 +31,31 @@ out:
        return 0;
 }
 #endif
+
+#if defined(CONFIG_TPL_BUILD)
+
+#define PMUGRF_BASE     0xff320000
+#define GPIO0_BASE      0xff720000
+
+int board_early_init_f(void)
+{
+       struct rockchip_gpio_regs * const gpio0 = (void *)GPIO0_BASE;
+       struct rk3399_pmugrf_regs * const pmugrf = (void *)PMUGRF_BASE;
+
+       /**
+        * 1. Glow yellow LED, termed as low power
+        * 2. Poll for on board power key press
+        * 3. Once 2 done, off yellow and glow red LED, termed as full power
+        * 4. Continue booting...
+        */
+       spl_gpio_output(gpio0, GPIO(BANK_A, 2), 1);
+
+       spl_gpio_set_pull(&pmugrf->gpio0_p, GPIO(BANK_A, 5), GPIO_PULL_NORMAL);
+       while (readl(&gpio0->ext_port) & 0x20);
+
+       spl_gpio_output(gpio0, GPIO(BANK_A, 2), 0);
+       spl_gpio_output(gpio0, GPIO(BANK_B, 5), 1);
+
+       return 0;
+}
+#endif

diff --git a/configs/roc-pc-rk3399_defconfig b/configs/roc-pc-rk3399_defconfig
index 577ba77b3ed74fb6e34a38f78462b3d6682a505d..9ae9b35aaecf47abee9a07a9bb89544114a1948b 100644 (file)
--- a/configs/roc-pc-rk3399_defconfig
+++ b/configs/roc-pc-rk3399_defconfig
@@ -57,3 +57,4 @@ CONFIG_USB_ETHER_RTL8152=y
 CONFIG_USB_ETHER_SMSC95XX=y
 CONFIG_SPL_TINY_MEMSET=y
 CONFIG_ERRNO_STR=y
+CONFIG_TPL_GPIO_SUPPORT=y