diff options
| author | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2017-02-15 22:50:23 +0100 |
|---|---|---|
| committer | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2017-03-09 01:40:18 +0100 |
| commit | c2e49866a967e0047ad0221b76bd35b00ca2ff6f (patch) | |
| tree | ab1eab1b3fe1e969923ad9958e2641d91d13b6eb | |
| parent | e2507756d71c70fbe9895b9519e376f113828aa8 (diff) | |
sunxi (sun50i): support i2c on A64 (pin-config, clocking)
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/gpio.h | 3 | ||||
| -rw-r--r-- | arch/arm/mach-sunxi/clock.c | 2 | ||||
| -rw-r--r-- | board/sunxi/board.c | 18 |
3 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-sunxi/gpio.h b/arch/arm/include/asm/arch-sunxi/gpio.h index 7cdf5a38a0..b85ca2293a 100644 --- a/arch/arm/include/asm/arch-sunxi/gpio.h +++ b/arch/arm/include/asm/arch-sunxi/gpio.h @@ -176,6 +176,7 @@ enum sunxi_gpio_number { #define SUN5I_GPE_SDC2 3 #define SUN8I_GPE_TWI2 3 +#define SUN50I_GPE_TWI2 3 #define SUNXI_GPF_SDC0 2 #define SUNXI_GPF_UART0 4 @@ -195,8 +196,10 @@ enum sunxi_gpio_number { #define SUN4I_GPH_SDC1 5 #define SUN6I_GPH_TWI0 2 #define SUN8I_GPH_TWI0 2 +#define SUN50I_GPH_TWI0 2 #define SUN6I_GPH_TWI1 2 #define SUN8I_GPH_TWI1 2 +#define SUN50I_GPH_TWI1 2 #define SUN6I_GPH_TWI2 2 #define SUN6I_GPH_UART0 2 #define SUN9I_GPH_UART0 2 diff --git a/arch/arm/mach-sunxi/clock.c b/arch/arm/mach-sunxi/clock.c index e6f53f91e6..457a0765db 100644 --- a/arch/arm/mach-sunxi/clock.c +++ b/arch/arm/mach-sunxi/clock.c @@ -43,6 +43,7 @@ int clock_twi_onoff(int port, int state) struct sunxi_ccm_reg *const ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; +#if !defined(CONFIG_MACH_SUN50I) if (port == 5) { if (state) prcm_apb0_enable( @@ -52,6 +53,7 @@ int clock_twi_onoff(int port, int state) PRCM_APB0_GATE_PIO | PRCM_APB0_GATE_I2C); return 0; } +#endif /* set the apb clock gate and reset for twi */ if (state) { diff --git a/board/sunxi/board.c b/board/sunxi/board.c index b64d1c9c6e..e887479e4a 100644 --- a/board/sunxi/board.c +++ b/board/sunxi/board.c @@ -499,6 +499,13 @@ void i2c_init_board(void) sunxi_gpio_set_cfgpin(SUNXI_GPH(2), SUN8I_GPH_TWI0); sunxi_gpio_set_cfgpin(SUNXI_GPH(3), SUN8I_GPH_TWI0); clock_twi_onoff(0, 1); +#elif defined(CONFIG_MACH_SUN50I) + sunxi_gpio_set_cfgpin(SUNXI_GPH(0), SUN50I_GPH_TWI0); + sunxi_gpio_set_cfgpin(SUNXI_GPH(1), SUN50I_GPH_TWI0); + /* The A64-uQ7 doesn't have external pull-ups for I2C[01]. */ + sunxi_gpio_set_pull(SUNXI_GPH(0), SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_pull(SUNXI_GPH(1), SUNXI_GPIO_PULL_UP); + clock_twi_onoff(0, 1); #endif #endif @@ -519,6 +526,13 @@ void i2c_init_board(void) sunxi_gpio_set_cfgpin(SUNXI_GPH(4), SUN8I_GPH_TWI1); sunxi_gpio_set_cfgpin(SUNXI_GPH(5), SUN8I_GPH_TWI1); clock_twi_onoff(1, 1); +#elif defined(CONFIG_MACH_SUN50I) + sunxi_gpio_set_cfgpin(SUNXI_GPH(2), SUN50I_GPH_TWI1); + sunxi_gpio_set_cfgpin(SUNXI_GPH(3), SUN50I_GPH_TWI1); + /* The A64-uQ7 doesn't have external pull-ups for I2C[01]. */ + sunxi_gpio_set_pull(SUNXI_GPH(2), SUNXI_GPIO_PULL_UP); + sunxi_gpio_set_pull(SUNXI_GPH(3), SUNXI_GPIO_PULL_UP); + clock_twi_onoff(1, 1); #endif #endif @@ -539,6 +553,10 @@ void i2c_init_board(void) sunxi_gpio_set_cfgpin(SUNXI_GPE(12), SUN8I_GPE_TWI2); sunxi_gpio_set_cfgpin(SUNXI_GPE(13), SUN8I_GPE_TWI2); clock_twi_onoff(2, 1); +#elif defined(CONFIG_MACH_SUN50I) + sunxi_gpio_set_cfgpin(SUNXI_GPE(14), SUN50I_GPE_TWI2); + sunxi_gpio_set_cfgpin(SUNXI_GPE(15), SUN50I_GPE_TWI2); + clock_twi_onoff(2, 1); #endif #endif |