brain-hackers_pepepper-mirror/u-boot-brain
1
0
Fork 0
mirror of https://github.com/brain-hackers/u-boot-brain synced 2024-06-09 23:36:03 +09:00
Code Issues Projects Releases Wiki Activity

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

Browse Source 
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>
This commit is contained in:
Suniel Mahesh 2020-02-03 19:20:05 +05:30 committed by Kever Yang
parent 01892d230d
commit 5a6d3d1fbc
3 changed files with 40 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
arch/arm/mach-rockchip/tpl.c
View File

@ -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:

32
board/firefly/roc-pc-rk3399/roc-pc-rk3399.c
View File

@ -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

1
configs/roc-pc-rk3399_defconfig
View File

@ -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