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 52c9e61f24761b65914367ab71daf27de502e043..dfd60aa3fa11ef858f76948f71e16874f9642e0c 100644 (file)
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -36,6 +36,7 @@ config AXP209_POWER
 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 65802e4a713f9eec76dfc41d18a0db048160544b..8acadf0f9c52fc700170645e7f1e0c748df38373 100644 (file)
--- 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 @@ int axp_get_sid(unsigned int *sid)
 
        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 0ee21b62806bf51f7e7b227daa9f6d43a9a8b5d1..04cd8c2be48b2e516cc3c27fb755626e091d2a4b 100644 (file)
--- 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