diff options
Diffstat (limited to 'drivers/misc/rockchip-io-domain.c')
| -rw-r--r-- | drivers/misc/rockchip-io-domain.c | 79 |
1 files changed, 75 insertions, 4 deletions
diff --git a/drivers/misc/rockchip-io-domain.c b/drivers/misc/rockchip-io-domain.c index 3f6227f993f..0ffea32ef07 100644 --- a/drivers/misc/rockchip-io-domain.c +++ b/drivers/misc/rockchip-io-domain.c @@ -5,7 +5,6 @@ * Ported from linux drivers/soc/rockchip/io-domain.c */ -#include <common.h> #include <dm.h> #include <dm/device_compat.h> #include <regmap.h> @@ -28,6 +27,10 @@ #define MAX_VOLTAGE_1_8 1980000 #define MAX_VOLTAGE_3_3 3600000 +#define RK3399_PMUGRF_CON0 0x180 +#define RK3399_PMUGRF_CON0_VSEL BIT(8) +#define RK3399_PMUGRF_VSEL_SUPPLY_NUM 9 + #define RK3568_PMU_GRF_IO_VSEL0 0x0140 #define RK3568_PMU_GRF_IO_VSEL1 0x0144 #define RK3568_PMU_GRF_IO_VSEL2 0x0148 @@ -35,10 +38,10 @@ struct rockchip_iodomain_soc_data { int grf_offset; const char *supply_names[MAX_SUPPLIES]; - int (*write)(struct regmap *grf, int idx, int uV); + int (*write)(struct regmap *grf, uint offset, int idx, int uV); }; -static int rk3568_iodomain_write(struct regmap *grf, int idx, int uV) +static int rk3568_iodomain_write(struct regmap *grf, uint offset, int idx, int uV) { u32 is_3v3 = uV > MAX_VOLTAGE_1_8; u32 val0, val1; @@ -78,6 +81,64 @@ static int rk3568_iodomain_write(struct regmap *grf, int idx, int uV) return 0; } +static int rockchip_iodomain_write(struct regmap *grf, uint offset, int idx, int uV) +{ + u32 val; + + /* set value bit */ + val = (uV > MAX_VOLTAGE_1_8) ? 0 : 1; + val <<= idx; + + /* apply hiword-mask */ + val |= (BIT(idx) << 16); + + return regmap_write(grf, offset, val); +} + +static int rk3399_pmu_iodomain_write(struct regmap *grf, uint offset, int idx, int uV) +{ + int ret = rockchip_iodomain_write(grf, offset, idx, uV); + + if (!ret && idx == RK3399_PMUGRF_VSEL_SUPPLY_NUM) { + /* + * set pmu io iodomain to also use this framework + * instead of a special gpio. + */ + u32 val = RK3399_PMUGRF_CON0_VSEL | (RK3399_PMUGRF_CON0_VSEL << 16); + ret = regmap_write(grf, RK3399_PMUGRF_CON0, val); + } + + return ret; +} + +static const struct rockchip_iodomain_soc_data soc_data_rk3399 = { + .grf_offset = 0xe640, + .supply_names = { + "bt656-supply", /* APIO2_VDD */ + "audio-supply", /* APIO5_VDD */ + "sdmmc-supply", /* SDMMC0_VDD */ + "gpio1830-supply", /* APIO4_VDD */ + }, + .write = rockchip_iodomain_write, +}; + +static const struct rockchip_iodomain_soc_data soc_data_rk3399_pmu = { + .grf_offset = 0x180, + .supply_names = { + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + "pmu1830-supply", /* PMUIO2_VDD */ + }, + .write = rk3399_pmu_iodomain_write, +}; + static const struct rockchip_iodomain_soc_data soc_data_rk3568_pmu = { .grf_offset = 0x140, .supply_names = { @@ -96,6 +157,14 @@ static const struct rockchip_iodomain_soc_data soc_data_rk3568_pmu = { static const struct udevice_id rockchip_iodomain_ids[] = { { + .compatible = "rockchip,rk3399-io-voltage-domain", + .data = (ulong)&soc_data_rk3399, + }, + { + .compatible = "rockchip,rk3399-pmu-io-voltage-domain", + .data = (ulong)&soc_data_rk3399_pmu, + }, + { .compatible = "rockchip,rk3568-pmu-io-voltage-domain", .data = (ulong)&soc_data_rk3568_pmu, }, @@ -152,7 +221,9 @@ static int rockchip_iodomain_probe(struct udevice *dev) continue; } - soc_data->write(grf, i, uV); + ret = soc_data->write(grf, soc_data->grf_offset, i, uV); + if (ret) + dev_err(dev, "%s: Couldn't write to GRF\n", supply_name); } return 0; |