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sun50i: A64: add support for R_I2C controller

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Allwinner A64 has a I2C controller, which is in the R_ MMIO zone and has
two groups of pinmuxes on PL bank, so it's called R_I2C.

Add support for this I2C controller and the pinmux which doesn't conflict
with RSB.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Tested-by: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Vagrant Cascadian <vagrant@debian.org>
Acked-by: Jagan Teki <jagan@openedev.com>
This commit is contained in:
Vasily Khoruzhick 2018-11-05 20:24:30 -08:00 committed by Jagan Teki
parent 8336a43792
commit 31a4ac4d79
3 changed files with 8 additions and 0 deletions
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1
arch/arm/include/asm/arch-sunxi/gpio.h
View File

@ -211,6 +211,7 @@ enum sunxi_gpio_number {
#define SUN8I_H3_GPL_R_TWI 2
#define SUN8I_A23_GPL_R_TWI 3
#define SUN8I_GPL_R_UART 2
#define SUN50I_GPL_R_TWI 2
#define SUN9I_GPN_R_RSB 3

1
arch/arm/mach-sunxi/Kconfig
View File

@ -278,6 +278,7 @@ config MACH_SUN50I
select ARM64
select DM_I2C
select PHY_SUN4I_USB
select SUN6I_PRCM
select SUNXI_DE2
select SUNXI_GEN_SUN6I
select SUPPORT_SPL

6
board/sunxi/board.c
View File

@ -168,10 +168,16 @@ void i2c_init_board(void)
#endif
#ifdef CONFIG_R_I2C_ENABLE
#ifdef CONFIG_MACH_SUN50I
clock_twi_onoff(5, 1);
sunxi_gpio_set_cfgpin(SUNXI_GPL(8), SUN50I_GPL_R_TWI);
sunxi_gpio_set_cfgpin(SUNXI_GPL(9), SUN50I_GPL_R_TWI);
#else
clock_twi_onoff(5, 1);
sunxi_gpio_set_cfgpin(SUNXI_GPL(0), SUN8I_H3_GPL_R_TWI);
sunxi_gpio_set_cfgpin(SUNXI_GPL(1), SUN8I_H3_GPL_R_TWI);
#endif
#endif
}
#if defined(CONFIG_ENV_IS_IN_MMC) && defined(CONFIG_ENV_IS_IN_FAT)