diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/misc/rockchip-io-domain.c | 38 |
2 files changed, 39 insertions, 1 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 6b06888454f..6009d55f400 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -104,7 +104,7 @@ config ROCKCHIP_OTP config ROCKCHIP_IODOMAIN bool "Rockchip IO-domain driver support" depends on DM_REGULATOR && ARCH_ROCKCHIP - default y if ROCKCHIP_RK3568 + default y if ROCKCHIP_RK3328 || ROCKCHIP_RK3568 help Enable support for IO-domains in Rockchip SoCs. It is necessary for the IO-domain setting of the SoC to match the voltage supplied diff --git a/drivers/misc/rockchip-io-domain.c b/drivers/misc/rockchip-io-domain.c index 0ffea32ef07..04d4d07c412 100644 --- a/drivers/misc/rockchip-io-domain.c +++ b/drivers/misc/rockchip-io-domain.c @@ -27,6 +27,10 @@ #define MAX_VOLTAGE_1_8 1980000 #define MAX_VOLTAGE_3_3 3600000 +#define RK3328_SOC_CON4 0x410 +#define RK3328_SOC_CON4_VCCIO2 BIT(7) +#define RK3328_SOC_VCCIO2_SUPPLY_NUM 1 + #define RK3399_PMUGRF_CON0 0x180 #define RK3399_PMUGRF_CON0_VSEL BIT(8) #define RK3399_PMUGRF_VSEL_SUPPLY_NUM 9 @@ -95,6 +99,22 @@ static int rockchip_iodomain_write(struct regmap *grf, uint offset, int idx, int return regmap_write(grf, offset, val); } +static int rk3328_iodomain_write(struct regmap *grf, uint offset, int idx, int uV) +{ + int ret = rockchip_iodomain_write(grf, offset, idx, uV); + + if (!ret && idx == RK3328_SOC_VCCIO2_SUPPLY_NUM) { + /* + * set vccio2 iodomain to also use this framework + * instead of a special gpio. + */ + u32 val = RK3328_SOC_CON4_VCCIO2 | (RK3328_SOC_CON4_VCCIO2 << 16); + ret = regmap_write(grf, RK3328_SOC_CON4, val); + } + + return ret; +} + static int rk3399_pmu_iodomain_write(struct regmap *grf, uint offset, int idx, int uV) { int ret = rockchip_iodomain_write(grf, offset, idx, uV); @@ -111,6 +131,20 @@ static int rk3399_pmu_iodomain_write(struct regmap *grf, uint offset, int idx, i return ret; } +static const struct rockchip_iodomain_soc_data soc_data_rk3328 = { + .grf_offset = 0x410, + .supply_names = { + "vccio1-supply", + "vccio2-supply", + "vccio3-supply", + "vccio4-supply", + "vccio5-supply", + "vccio6-supply", + "pmuio-supply", + }, + .write = rk3328_iodomain_write, +}; + static const struct rockchip_iodomain_soc_data soc_data_rk3399 = { .grf_offset = 0xe640, .supply_names = { @@ -157,6 +191,10 @@ static const struct rockchip_iodomain_soc_data soc_data_rk3568_pmu = { static const struct udevice_id rockchip_iodomain_ids[] = { { + .compatible = "rockchip,rk3328-io-voltage-domain", + .data = (ulong)&soc_data_rk3328, + }, + { .compatible = "rockchip,rk3399-io-voltage-domain", .data = (ulong)&soc_data_rk3399, }, |