this adds poweroff to bananapi r2 / mt7623 / mt6323 pmic
Signed-off-by: Frank Wunderlich
---
drivers/power/Kconfig | 7 +++
drivers/power/Makefile | 1 +
drivers/power/mt6323.c | 37 +
3 files changed, 45 insertions(+)
create mode 100644 drivers/power/mt6323.c
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 9495dca33b..0ac906e86d 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -364,4 +364,11 @@ 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 dd5bc0dc44..2dcc7bb99d 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 00..566be5f39e
--- /dev/null
+++ b/drivers/power/mt6323.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Frank Wunderlich
+ */
+
+#include
+#include
+#include
+
+#define PWRAP_BASE 0x1000d000
+#define PWRAP_WACS2_CMD0x9c
+
+#define PWRAP_CALC(adr, wdata) ((1 << 31) | (((adr) >> 1) << 16) | (wdata))
+
+#define MT6323_PWRC_BASE 0x8000
+#define RTC_BBPU 0x
+#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(1);
+ printf("Failed to power off!!!\n");
+ return 1;
+}
--
2.17.1
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