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authorPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>2016-08-23 00:46:19 +0200
committerKlaus Goger <klaus.goger@theobroma-systems.com>2016-09-18 13:45:16 +0200
commitd98f436149fbf3dc4c0d30ba7549f53f8d8f8259 (patch)
treeb06fec9aba0608205b4541871e192c5e761096da /arch
parentb82bd880352c719144663db74003f94ad8a6439d (diff)
sunxi: Add support for the AXP806 on sun9i
On A80 boards, both a AXP809 (primary) and AXP806 (secondary) PMIC are found. The AXP806 supplies the Cortex-A15 cores with a poly-phase supply to deliver up to 10A of total power. When used in the slave configuration, the AXP806 needs a write to the REGADDR_EXT register to configure it to work on the same RSB bus as the primary PMIC.
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/cpu/armv7/sunxi/pmic_bus.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/pmic_bus.c b/arch/arm/cpu/armv7/sunxi/pmic_bus.c
index d96130b6ed..8d39046e7b 100644
--- a/arch/arm/cpu/armv7/sunxi/pmic_bus.c
+++ b/arch/arm/cpu/armv7/sunxi/pmic_bus.c
@@ -14,6 +14,7 @@
#include <asm/arch/rsb.h>
#include <i2c.h>
#include <asm/arch/pmic_bus.h>
+#include <power/axp806_pmic.h>
#define AXP152_I2C_ADDR 0x30
@@ -27,6 +28,9 @@
#define AXP223_DEVICE_ADDR 0x3a3
#define AXP223_RUNTIME_ADDR 0x2d
+#define AXP806_DEVICE_ADDR 0x745
+#define AXP806_RUNTIME_ADDR 0x3a
+
int pmic_bus_init(void)
{
/* This cannot be 0 because it is used in SPL before BSS is ready */
@@ -47,6 +51,10 @@ int pmic_bus_init(void)
return ret;
ret = rsb_set_device_address(AXP223_DEVICE_ADDR, AXP223_RUNTIME_ADDR);
+# if defined(CONFIG_AXP806_POWER)
+ ret |= rsb_set_device_address(AXP806_DEVICE_ADDR, AXP806_RUNTIME_ADDR);
+ rsb_write(AXP806_RUNTIME_ADDR, AXP806_REGADDR_EXT, 0x10);
+# endif
# endif
if (ret)
return ret;