diff options
| -rw-r--r-- | drivers/power/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/power/Makefile | 1 | ||||
| -rw-r--r-- | drivers/power/mt6323.c | 37 |
3 files changed, 45 insertions, 0 deletions
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index cb2c6fe3ebe..5910926faca 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -366,4 +366,11 @@ config TWL4030_POWER The TWL4030 in a combination audio CODEC/power management with GPIO and it is commonly used with the OMAP3 family of processors +config POWER_MT6323 + bool "Poweroff driver for mediatek mt6323" + select CMD_POWEROFF + help + This adds poweroff driver for mt6323 + this pmic is used on mt7623 / Bananapi R2 + endmenu diff --git a/drivers/power/Makefile b/drivers/power/Makefile index dd5bc0dc44e..2dcc7bb99d0 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -20,3 +20,4 @@ obj-$(CONFIG_DIALOG_POWER) += power_dialog.o obj-$(CONFIG_POWER_FSL) += power_fsl.o obj-$(CONFIG_POWER_I2C) += power_i2c.o obj-$(CONFIG_POWER_SPI) += power_spi.o +obj-$(CONFIG_POWER_MT6323) += mt6323.o diff --git a/drivers/power/mt6323.c b/drivers/power/mt6323.c new file mode 100644 index 00000000000..566be5f39e5 --- /dev/null +++ b/drivers/power/mt6323.c @@ -0,0 +1,37 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019 Frank Wunderlich <frank-w@public-files.de> + */ + +#include <common.h> +#include <command.h> +#include <asm/io.h> + +#define PWRAP_BASE 0x1000d000 +#define PWRAP_WACS2_CMD 0x9c + +#define PWRAP_CALC(adr, wdata) ((1 << 31) | (((adr) >> 1) << 16) | (wdata)) + +#define MT6323_PWRC_BASE 0x8000 +#define RTC_BBPU 0x0000 +#define RTC_BBPU_KEY (0x43 << 8) +#define RTC_WRTGR 0x003c + +int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + u32 addr, val; + + addr = PWRAP_BASE + PWRAP_WACS2_CMD; + val = PWRAP_CALC(MT6323_PWRC_BASE + RTC_BBPU, RTC_BBPU_KEY); + writel(val, addr); + + mdelay(10); + + val = PWRAP_CALC(MT6323_PWRC_BASE + RTC_WRTGR, 1); + writel(val, addr); + + // wait some time and then print error + mdelay(10000); + printf("Failed to power off!!!\n"); + return 1; +} |