From: Suniel Mahesh <su...@amarulasolutions.com>
In case of a power interruption, human intervention is required which
is not desirable if the device is installed at a remote location. Drop
yellow LED as it is not much of use. Keep red LED(diy-led) as it is, to
indicate board in full power mode.
Signed-off-by: Suniel Mahesh <su...@amarulasolutions.com>
---
Changes for v2:
- no changes
- An explanation for why this patch is required is already sent
in the thread. Let me know if you need any more changes.
- Tested on firefly roc-pc-rk3399, an rk3399 based target.
---
board/firefly/roc-pc-rk3399/roc-pc-rk3399.c | 16 +---------------
1 file changed, 1 insertion(+), 15 deletions(-)
diff --git a/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c
b/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c
index de9185a..0fe1914 100644
--- a/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c
+++ b/board/firefly/roc-pc-rk3399/roc-pc-rk3399.c
@@ -10,7 +10,6 @@
#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)
@@ -34,26 +33,13 @@ out:
#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);
+ /* Turn on red LED, indicating full power mode */
spl_gpio_output(gpio0, GPIO(BANK_B, 5), 1);
return 0;
--
2.7.4
