sunxi: Implement poweroff support for axp221 pmic
Adds poweroff support for axp221 pmic.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 52c9e61..dfd60aa 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -36,6 +36,7 @@
config AXP221_POWER
boolean "axp221 / axp223 pmic support"
depends on MACH_SUN6I || MACH_SUN8I_A23 || MACH_SUN8I_A33
+ select CMD_POWEROFF
---help---
Select this to enable support for the axp221/axp223 pmic found on most
A23 and A31 boards.
diff --git a/drivers/power/axp221.c b/drivers/power/axp221.c
index 65802e4..8acadf0 100644
--- a/drivers/power/axp221.c
+++ b/drivers/power/axp221.c
@@ -11,6 +11,7 @@
*/
#include <common.h>
+#include <command.h>
#include <errno.h>
#include <asm/arch/pmic_bus.h>
#include <axp_pmic.h>
@@ -312,3 +313,14 @@
return 0;
}
+
+int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ pmic_bus_write(AXP221_SHUTDOWN, AXP221_SHUTDOWN_POWEROFF);
+
+ /* infinite loop during shutdown */
+ while (1) {}
+
+ /* not reached */
+ return 0;
+}
diff --git a/include/axp221.h b/include/axp221.h
index 0ee21b6..04cd8c2 100644
--- a/include/axp221.h
+++ b/include/axp221.h
@@ -45,6 +45,8 @@
#define AXP221_ALDO3_CTRL 0x2a
#define AXP221_VBUS_IPSOUT 0x30
#define AXP221_VBUS_IPSOUT_DRIVEBUS (1 << 2)
+#define AXP221_SHUTDOWN 0x32
+#define AXP221_SHUTDOWN_POWEROFF (1 << 7)
#define AXP221_MISC_CTRL 0x8f
#define AXP221_MISC_CTRL_N_VBUSEN_FUNC (1 << 4)
#define AXP221_PAGE 0xff