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pinctrl: rockchip: Add pinctrl support for PX30 

There are 4 banks (GPIO0 ~ GPIO3), bank0 is in PD_PMU
subsystem, bank1/bank2/bank3 are in PD_BUS subsystem.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
David Wu 2018-05-14 19:59:51 +08:00 committed by Linus Walleij
parent f61f5a2174
commit 87065ca9b8
2 changed files with 195 additions and 0 deletions
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1
Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
View File

@ -20,6 +20,7 @@ defined as gpio sub-nodes of the pinmux controller.
Required properties for iomux controller:
- compatible: should be
"rockchip,px30-pinctrl": for Rockchip PX30
"rockchip,rv1108-pinctrl": for Rockchip RV1108
"rockchip,rk2928-pinctrl": for Rockchip RK2928
"rockchip,rk3066a-pinctrl": for Rockchip RK3066a

194
drivers/pinctrl/pinctrl-rockchip.c
View File

@ -59,6 +59,7 @@
#define GPIO_LS_SYNC 0x60
enum rockchip_pinctrl_type {
PX30,
RV1108,
RK2928,
RK3066B,
@ -701,6 +702,66 @@ static void rockchip_get_recalced_mux(struct rockchip_pin_bank *bank, int pin,
*bit = data->bit;
}
static struct rockchip_mux_route_data px30_mux_route_data[] = {
{
/* cif-d2m0 */
.bank_num = 2,
.pin = 0,
.func = 1,
.route_offset = 0x184,
.route_val = BIT(16 + 7),
}, {
/* cif-d2m1 */
.bank_num = 3,
.pin = 3,
.func = 3,
.route_offset = 0x184,
.route_val = BIT(16 + 7) | BIT(7),
}, {
/* pdm-m0 */
.bank_num = 3,
.pin = 22,
.func = 2,
.route_offset = 0x184,
.route_val = BIT(16 + 8),
}, {
/* pdm-m1 */
.bank_num = 2,
.pin = 22,
.func = 1,
.route_offset = 0x184,
.route_val = BIT(16 + 8) | BIT(8),
}, {
/* uart2-rxm0 */
.bank_num = 1,
.pin = 27,
.func = 2,
.route_offset = 0x184,
.route_val = BIT(16 + 10),
}, {
/* uart2-rxm1 */
.bank_num = 2,
.pin = 14,
.func = 2,
.route_offset = 0x184,
.route_val = BIT(16 + 10) | BIT(10),
}, {
/* uart3-rxm0 */
.bank_num = 0,
.pin = 17,
.func = 2,
.route_offset = 0x184,
.route_val = BIT(16 + 9),
}, {
/* uart3-rxm1 */
.bank_num = 1,
.pin = 15,
.func = 2,
.route_offset = 0x184,
.route_val = BIT(16 + 9) | BIT(9),
},
};
static struct rockchip_mux_route_data rk3128_mux_route_data[] = {
{
/* spi-0 */
@ -1202,6 +1263,97 @@ static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux)
return ret;
}
#define PX30_PULL_PMU_OFFSET 0x10
#define PX30_PULL_GRF_OFFSET 0x60
#define PX30_PULL_BITS_PER_PIN 2
#define PX30_PULL_PINS_PER_REG 8
#define PX30_PULL_BANK_STRIDE 16
static void px30_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
/* The first 32 pins of the first bank are located in PMU */
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = PX30_PULL_PMU_OFFSET;
} else {
*regmap = info->regmap_base;
*reg = PX30_PULL_GRF_OFFSET;
/* correct the offset, as we're starting with the 2nd bank */
*reg -= 0x10;
*reg += bank->bank_num * PX30_PULL_BANK_STRIDE;
}
*reg += ((pin_num / PX30_PULL_PINS_PER_REG) * 4);
*bit = (pin_num % PX30_PULL_PINS_PER_REG);
*bit *= PX30_PULL_BITS_PER_PIN;
}
#define PX30_DRV_PMU_OFFSET 0x20
#define PX30_DRV_GRF_OFFSET 0xf0
#define PX30_DRV_BITS_PER_PIN 2
#define PX30_DRV_PINS_PER_REG 8
#define PX30_DRV_BANK_STRIDE 16
static void px30_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
/* The first 32 pins of the first bank are located in PMU */
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = PX30_DRV_PMU_OFFSET;
} else {
*regmap = info->regmap_base;
*reg = PX30_DRV_GRF_OFFSET;
/* correct the offset, as we're starting with the 2nd bank */
*reg -= 0x10;
*reg += bank->bank_num * PX30_DRV_BANK_STRIDE;
}
*reg += ((pin_num / PX30_DRV_PINS_PER_REG) * 4);
*bit = (pin_num % PX30_DRV_PINS_PER_REG);
*bit *= PX30_DRV_BITS_PER_PIN;
}
#define PX30_SCHMITT_PMU_OFFSET 0x38
#define PX30_SCHMITT_GRF_OFFSET 0xc0
#define PX30_SCHMITT_PINS_PER_PMU_REG 16
#define PX30_SCHMITT_BANK_STRIDE 16
#define PX30_SCHMITT_PINS_PER_GRF_REG 8
static int px30_calc_schmitt_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num,
struct regmap **regmap,
int *reg, u8 *bit)
{
struct rockchip_pinctrl *info = bank->drvdata;
int pins_per_reg;
if (bank->bank_num == 0) {
*regmap = info->regmap_pmu;
*reg = PX30_SCHMITT_PMU_OFFSET;
pins_per_reg = PX30_SCHMITT_PINS_PER_PMU_REG;
} else {
*regmap = info->regmap_base;
*reg = PX30_SCHMITT_GRF_OFFSET;
pins_per_reg = PX30_SCHMITT_PINS_PER_GRF_REG;
*reg += (bank->bank_num - 1) * PX30_SCHMITT_BANK_STRIDE;
}
*reg += ((pin_num / pins_per_reg) * 4);
*bit = pin_num % pins_per_reg;
return 0;
}
#define RV1108_PULL_PMU_OFFSET 0x10
#define RV1108_PULL_OFFSET 0x110
#define RV1108_PULL_PINS_PER_REG 8
@ -1798,6 +1950,7 @@ static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num)
return !(data & BIT(bit))
? PIN_CONFIG_BIAS_PULL_PIN_DEFAULT
: PIN_CONFIG_BIAS_DISABLE;
case PX30:
case RV1108:
case RK3188:
case RK3288:
@ -1841,6 +1994,7 @@ static int rockchip_set_pull(struct rockchip_pin_bank *bank,
data |= BIT(bit);
ret = regmap_write(regmap, reg, data);
break;
case PX30:
case RV1108:
case RK3188:
case RK3288:
@ -2103,6 +2257,7 @@ static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl,
pull == PIN_CONFIG_BIAS_DISABLE);
case RK3066B:
return pull ? false : true;
case PX30:
case RV1108:
case RK3188:
case RK3288:
@ -3237,6 +3392,43 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
return 0;
}
static struct rockchip_pin_bank px30_pin_banks[] = {
PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU,
IOMUX_SOURCE_PMU,
IOMUX_SOURCE_PMU,
IOMUX_SOURCE_PMU
),
PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", IOMUX_WIDTH_4BIT,
IOMUX_WIDTH_4BIT,
IOMUX_WIDTH_4BIT,
IOMUX_WIDTH_4BIT
),
PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", IOMUX_WIDTH_4BIT,
IOMUX_WIDTH_4BIT,
IOMUX_WIDTH_4BIT,
IOMUX_WIDTH_4BIT
),
PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", IOMUX_WIDTH_4BIT,
IOMUX_WIDTH_4BIT,
IOMUX_WIDTH_4BIT,
IOMUX_WIDTH_4BIT
),
};
static struct rockchip_pin_ctrl px30_pin_ctrl = {
.pin_banks = px30_pin_banks,
.nr_banks = ARRAY_SIZE(px30_pin_banks),
.label = "PX30-GPIO",
.type = PX30,
.grf_mux_offset = 0x0,
.pmu_mux_offset = 0x0,
.iomux_routes = px30_mux_route_data,
.niomux_routes = ARRAY_SIZE(px30_mux_route_data),
.pull_calc_reg = px30_calc_pull_reg_and_bit,
.drv_calc_reg = px30_calc_drv_reg_and_bit,
.schmitt_calc_reg = px30_calc_schmitt_reg_and_bit,
};
static struct rockchip_pin_bank rv1108_pin_banks[] = {
PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU,
IOMUX_SOURCE_PMU,
@ -3545,6 +3737,8 @@ static struct rockchip_pin_ctrl rk3399_pin_ctrl = {
};
static const struct of_device_id rockchip_pinctrl_dt_match[] = {
{ .compatible = "rockchip,px30-pinctrl",
.data = &px30_pin_ctrl },
{ .compatible = "rockchip,rv1108-pinctrl",
.data = &rv1108_pin_ctrl },
{ .compatible = "rockchip,rk2928-pinctrl",