diff mbox series

[U-Boot] poweroff: add poweroff for mt6323 pmic

Message ID 20191122143224.20077-1-frank-w@public-files.de
State Accepted
Commit 36b8b5d3adf7f8de6e5692c21b23a980da50884c
Delegated to: Tom Rini
Headers show
Series [U-Boot] poweroff: add poweroff for mt6323 pmic | expand

Commit Message

Frank Wunderlich Nov. 22, 2019, 2:32 p.m. UTC 
this adds poweroff to bananapi r2 / mt7623 / mt6323 pmic

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
---
 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

Comments

Frank Wunderlich Nov. 23, 2019, 9:18 a.m. UTC | #1 
Cc MTK Uboot list and Matthias as MTK Maintainer
Frank Wunderlich Dec. 22, 2019, 1:34 p.m. UTC | #2 
any opinions about this Patch?
Tom Rini Jan. 10, 2020, 9:49 p.m. UTC | #3 
On Fri, Nov 22, 2019 at 03:32:24PM +0100, Frank Wunderlich wrote:

> this adds poweroff to bananapi r2 / mt7623 / mt6323 pmic
> 
> Signed-off-by: Frank Wunderlich <frank-w@public-files.de>

Applied to u-boot/master, thanks!
diff mbox series

Patch

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 0000000000..566be5f39e
--- /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;
+}