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arm64: rockchip: rk805: Add basic support for RK808 PMIC

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RK808 PMIC is the companion chip for RK3399 SoC.
Add basic regulator support in RK805 since they are similar.

MFC after:	1 month
This commit is contained in:
Emmanuel Vadot 2018-12-01 20:31:05 +00:00
parent a23b6c018b
commit affb46a826
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=341385
2 changed files with 92 additions and 6 deletions
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80
sys/arm64/rockchip/rk805.c
View File

@ -51,8 +51,14 @@ __FBSDID("$FreeBSD$");
MALLOC_DEFINE(M_RK805_REG, "RK805 regulator", "RK805 power regulator");
enum rk_pmic_type {
RK805 = 1,
RK808,
};
static struct ofw_compat_data compat_data[] = {
{"rockchip,rk805", 1},
{"rockchip,rk805", RK805},
{"rockchip,rk808", RK808},
{NULL, 0}
};
@ -83,6 +89,7 @@ struct rk805_softc {
struct resource * res[1];
void * intrcookie;
struct intr_config_hook intr_hook;
enum rk_pmic_type type;
struct rk805_reg_sc **regs;
int nregs;
@ -133,6 +140,51 @@ static struct rk805_regdef rk805_regdefs[] = {
},
};
static struct rk805_regdef rk808_regdefs[] = {
{
.id = RK805_DCDC1,
.name = "DCDC_REG1",
.enable_reg = RK805_DCDC_EN,
.enable_mask = 0x1,
.voltage_reg = RK805_DCDC1_ON_VSEL,
.voltage_mask = 0x3F,
.voltage_min = 712500,
.voltage_max = 1500000,
.voltage_step = 12500,
.voltage_nstep = 64,
},
{
.id = RK805_DCDC2,
.name = "DCDC_REG2",
.enable_reg = RK805_DCDC_EN,
.enable_mask = 0x2,
.voltage_reg = RK805_DCDC2_ON_VSEL,
.voltage_mask = 0x3F,
.voltage_min = 712500,
.voltage_max = 1500000,
.voltage_step = 12500,
.voltage_nstep = 64,
},
{
.id = RK805_DCDC3,
.name = "DCDC_REG3",
.enable_reg = RK805_DCDC_EN,
.enable_mask = 0x4,
},
{
.id = RK805_DCDC4,
.name = "DCDC_REG4",
.enable_reg = RK805_DCDC_EN,
.enable_mask = 0x8,
.voltage_reg = RK805_DCDC4_ON_VSEL,
.voltage_mask = 0xF,
.voltage_min = 1800000,
.voltage_max = 3300000,
.voltage_step = 100000,
.voltage_nstep = 16,
},
};
static int
rk805_read(device_t dev, uint8_t reg, uint8_t *data, uint8_t size)
{
@ -226,11 +278,17 @@ rk805_regnode_set_voltage(struct regnode *regnode, int min_uvolt,
if (!sc->def->voltage_step)
return (ENXIO);
rk805_read(sc->base_dev, sc->def->voltage_reg, &val, 1);
printf("rk805_set_voltage: Current value for %x: %x\n", sc->def->voltage_reg, val);
if (rk805_regnode_voltage_to_reg(sc, min_uvolt, max_uvolt, &val) != 0)
return (ERANGE);
printf("rk805_set_voltage: Setting %x to %x\n", sc->def->voltage_reg, val);
rk805_write(sc->base_dev, sc->def->voltage_reg, val);
rk805_read(sc->base_dev, sc->def->voltage_reg, &val, 1);
printf("rk805_set_voltage: Set value for %x: %x\n", sc->def->voltage_reg, val);
*udelay = 0;
return (0);
@ -326,13 +384,14 @@ rk805_start(void *pdev)
sc = device_get_softc(dev);
sc->dev = dev;
if (bootverbose) {
err = rk805_read(dev, 0x17, data, 1);
/* No version register in RK808 */
if (bootverbose && sc->type == RK805) {
err = rk805_read(dev, RK805_CHIP_NAME, data, 1);
if (err != 0) {
device_printf(dev, "Cannot read chip name reg\n");
return;
}
err = rk805_read(dev, 0x18, data + 1, 1);
err = rk805_read(dev, RK805_CHIP_VER, data + 1, 1);
if (err != 0) {
device_printf(dev, "Cannot read chip version reg\n");
return;
@ -365,8 +424,17 @@ rk805_attach(device_t dev)
sc->regs = malloc(sizeof(struct rk805_reg_sc *) * sc->nregs,
M_RK805_REG, M_WAITOK | M_ZERO);
regdefs = rk805_regdefs;
sc->nregs = nitems(rk805_regdefs);
sc->type = ofw_bus_search_compatible(dev, compat_data)->ocd_data;
switch (sc->type) {
case RK805:
regdefs = rk805_regdefs;
sc->nregs = nitems(rk805_regdefs);
break;
case RK808:
regdefs = rk808_regdefs;
sc->nregs = nitems(rk808_regdefs);
break;
}
rnode = ofw_bus_find_child(ofw_bus_get_node(dev), "regulators");
if (rnode > 0) {

18
sys/arm64/rockchip/rk805reg.h
View File

@ -37,6 +37,7 @@
#define RK805_OTP_VER 0x19
#define RK805_DCDC_EN 0x23
#define RK808_LDO_EN 0x24
#define RK805_SLEEP_DCDC_EN 0x25
#define RK805_SLEEP_LDO_EN 0x26
#define RK805_LDO_EN 0x27
@ -69,4 +70,21 @@ enum rk805_regulator {
RK805_LDO3,
};
enum rk808_regulator {
RK808_DCDC1,
RK808_DCDC2,
RK808_DCDC3,
RK808_DCDC4,
RK808_LDO1,
RK808_LDO2,
RK808_LDO3,
RK808_LDO4,
RK808_LDO5,
RK808_LDO6,
RK808_LDO7,
RK808_LDO8,
RK808_SWITCH1,
RK808_SWITCH2,
};
#endif /* _RK805REG_H_ */