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board: st: stm32mp2: add user button support

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Handle user button 2 to force boot with STM32CubeProgrammer.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
This commit is contained in:
Patrick Delaunay 2022-07-27 10:38:11 +02:00 committed by Patrice Chotard
parent 0272e50b55
commit 331b4cecc2
2 changed files with 29 additions and 1 deletions
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26
board/st/stm32mp2/stm32mp2.c
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@ -5,6 +5,7 @@
#define LOG_CATEGORY LOGC_BOARD
#include <button.h>
#include <config.h>
#include <env_internal.h>
#include <fdt_support.h>
@ -13,10 +14,12 @@
#include <misc.h>
#include <mmc.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/arch/sys_proto.h>
#include <dm/device.h>
#include <dm/ofnode.h>
#include <dm/uclass.h>
#include <linux/delay.h>
/*
* Get a global data pointer
@ -90,10 +93,33 @@ static int setup_led(enum led_state_t cmd)
return ret;
}
static void check_user_button(void)
{
struct udevice *button;
int i;
if (!IS_ENABLED(CONFIG_CMD_STM32PROG) || !IS_ENABLED(CONFIG_BUTTON))
return;
if (button_get_by_label("User-2", &button))
return;
for (i = 0; i < 21; ++i) {
if (button_get_state(button) != BUTTON_ON)
return;
if (i < 20)
mdelay(50);
}
log_notice("entering download mode...\n");
clrsetbits_le32(TAMP_BOOT_CONTEXT, TAMP_BOOT_FORCED_MASK, BOOT_STM32PROG);
}
/* board dependent setup after realloc */
int board_init(void)
{
setup_led(LEDST_ON);
check_user_button();
return 0;
}

4
configs/stm32mp25_defconfig
View File

@ -39,12 +39,14 @@ CONFIG_ENV_IS_IN_MMC=y
CONFIG_SYS_MMC_ENV_DEV=-1
CONFIG_NO_NET=y
CONFIG_SYS_64BIT_LBA=y
CONFIG_BUTTON=y
CONFIG_BUTTON_GPIO=y
CONFIG_GPIO_HOG=y
CONFIG_DM_I2C=y
CONFIG_SYS_I2C_STM32F7=y
CONFIG_SUPPORT_EMMC_BOOT=y
CONFIG_LED=y
CONFIG_LED_GPIO=y
CONFIG_SUPPORT_EMMC_BOOT=y
CONFIG_STM32_SDMMC2=y
CONFIG_MTD=y
CONFIG_USE_SYS_MAX_FLASH_BANKS=y