[PATCH 4/6] sunxi: allow to use AXP20[39] attached to I2C0 on V3 series

[Icenowy Zheng]

The reference design of Allwinner V3 series uses an
AXP203 or AXP209 PMIC attached to the I2C0 bus of the SoC, although the
first community-available V3s board, Lichee Pi Zero, omitted it.

Allow to introduce support for the PMIC on boards with it.

Signed-off-by: Icenowy Zheng <icenowy at aosc.io>
---
 arch/arm/include/asm/arch-sunxi/gpio.h | 1 +
 board/sunxi/board.c                    | 4 ++++
 drivers/power/Kconfig                  | 4 ++--
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/arch-sunxi/gpio.h b/arch/arm/include/asm/arch-sunxi/gpio.h
index a646ea6a3c..f817d328f4 100644
--- a/arch/arm/include/asm/arch-sunxi/gpio.h
+++ b/arch/arm/include/asm/arch-sunxi/gpio.h
@@ -158,6 +158,7 @@ enum sunxi_gpio_number {
 #define SUN5I_GPB_TWI1		2
 #define SUN4I_GPB_TWI2		2
 #define SUN5I_GPB_TWI2		2
+#define SUN8I_V3S_GPB_TWI0	2
 #define SUN4I_GPB_UART0		2
 #define SUN5I_GPB_UART0		2
 #define SUN8I_GPB_UART2		2
diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index a5cf0b65c7..3796213b9f 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -101,6 +101,10 @@ void i2c_init_board(void)
 	sunxi_gpio_set_cfgpin(SUNXI_GPH(14), SUN6I_GPH_TWI0);
 	sunxi_gpio_set_cfgpin(SUNXI_GPH(15), SUN6I_GPH_TWI0);
 	clock_twi_onoff(0, 1);
+#elif defined(CONFIG_MACH_SUN8I_V3S)
+	sunxi_gpio_set_cfgpin(SUNXI_GPB(6), SUN8I_V3S_GPB_TWI0);
+	sunxi_gpio_set_cfgpin(SUNXI_GPB(7), SUN8I_V3S_GPB_TWI0);
+	clock_twi_onoff(0, 1);
 #elif defined(CONFIG_MACH_SUN8I)
 	sunxi_gpio_set_cfgpin(SUNXI_GPH(2), SUN8I_GPH_TWI0);
 	sunxi_gpio_set_cfgpin(SUNXI_GPH(3), SUN8I_GPH_TWI0);
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 5910926fac..02050f6f35 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -14,7 +14,7 @@ choice
 	default AXP209_POWER if MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
 	default AXP221_POWER if MACH_SUN6I || MACH_SUN8I_A23 || MACH_SUN8I_A33 || MACH_SUN8I_R40
 	default AXP818_POWER if MACH_SUN8I_A83T
-	default SUNXI_NO_PMIC if MACH_SUNXI_H3_H5 || MACH_SUN50I
+	default SUNXI_NO_PMIC if MACH_SUNXI_H3_H5 || MACH_SUN50I || MACH_SUN8I_V3S
 
 config SUNXI_NO_PMIC
 	bool "board without a pmic"
@@ -32,7 +32,7 @@ config AXP152_POWER
 
 config AXP209_POWER
 	bool "axp209 pmic support"
-	depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
+	depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUN8I_V3S
 	select AXP_PMIC_BUS
 	select CMD_POWEROFF
 	---help---
-- 
2.28.0