u-boot/drivers/pinctrl/rockchip/pinctrl_rk3036.c

672 lines
14 KiB
C
Raw Normal View History

// SPDX-License-Identifier: GPL-2.0+
/*
* Pinctrl driver for Rockchip 3036 SoCs
* (C) Copyright 2015 Rockchip Electronics Co., Ltd
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <syscon.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/grf_rk3036.h>
#include <asm/arch/hardware.h>
#include <asm/arch/periph.h>
#include <dm/pinctrl.h>
/* GRF_GPIO0A_IOMUX */
enum {
GPIO0A3_SHIFT = 6,
GPIO0A3_MASK = 1 << GPIO0A3_SHIFT,
GPIO0A3_GPIO = 0,
GPIO0A3_I2C1_SDA,
GPIO0A2_SHIFT = 4,
GPIO0A2_MASK = 1 << GPIO0A2_SHIFT,
GPIO0A2_GPIO = 0,
GPIO0A2_I2C1_SCL,
GPIO0A1_SHIFT = 2,
GPIO0A1_MASK = 3 << GPIO0A1_SHIFT,
GPIO0A1_GPIO = 0,
GPIO0A1_I2C0_SDA,
GPIO0A1_PWM2,
GPIO0A0_SHIFT = 0,
GPIO0A0_MASK = 3 << GPIO0A0_SHIFT,
GPIO0A0_GPIO = 0,
GPIO0A0_I2C0_SCL,
GPIO0A0_PWM1,
};
/* GRF_GPIO0B_IOMUX */
enum {
GPIO0B6_SHIFT = 12,
GPIO0B6_MASK = 3 << GPIO0B6_SHIFT,
GPIO0B6_GPIO = 0,
GPIO0B6_MMC1_D3,
GPIO0B6_I2S1_SCLK,
GPIO0B5_SHIFT = 10,
GPIO0B5_MASK = 3 << GPIO0B5_SHIFT,
GPIO0B5_GPIO = 0,
GPIO0B5_MMC1_D2,
GPIO0B5_I2S1_SDI,
GPIO0B4_SHIFT = 8,
GPIO0B4_MASK = 3 << GPIO0B4_SHIFT,
GPIO0B4_GPIO = 0,
GPIO0B4_MMC1_D1,
GPIO0B4_I2S1_LRCKTX,
GPIO0B3_SHIFT = 6,
GPIO0B3_MASK = 3 << GPIO0B3_SHIFT,
GPIO0B3_GPIO = 0,
GPIO0B3_MMC1_D0,
GPIO0B3_I2S1_LRCKRX,
GPIO0B1_SHIFT = 2,
GPIO0B1_MASK = 3 << GPIO0B1_SHIFT,
GPIO0B1_GPIO = 0,
GPIO0B1_MMC1_CLKOUT,
GPIO0B1_I2S1_MCLK,
GPIO0B0_SHIFT = 0,
GPIO0B0_MASK = 3,
GPIO0B0_GPIO = 0,
GPIO0B0_MMC1_CMD,
GPIO0B0_I2S1_SDO,
};
/* GRF_GPIO0C_IOMUX */
enum {
GPIO0C4_SHIFT = 8,
GPIO0C4_MASK = 1 << GPIO0C4_SHIFT,
GPIO0C4_GPIO = 0,
GPIO0C4_DRIVE_VBUS,
GPIO0C3_SHIFT = 6,
GPIO0C3_MASK = 1 << GPIO0C3_SHIFT,
GPIO0C3_GPIO = 0,
GPIO0C3_UART0_CTSN,
GPIO0C2_SHIFT = 4,
GPIO0C2_MASK = 1 << GPIO0C2_SHIFT,
GPIO0C2_GPIO = 0,
GPIO0C2_UART0_RTSN,
GPIO0C1_SHIFT = 2,
GPIO0C1_MASK = 1 << GPIO0C1_SHIFT,
GPIO0C1_GPIO = 0,
GPIO0C1_UART0_SIN,
GPIO0C0_SHIFT = 0,
GPIO0C0_MASK = 1 << GPIO0C0_SHIFT,
GPIO0C0_GPIO = 0,
GPIO0C0_UART0_SOUT,
};
/* GRF_GPIO0D_IOMUX */
enum {
GPIO0D4_SHIFT = 8,
GPIO0D4_MASK = 1 << GPIO0D4_SHIFT,
GPIO0D4_GPIO = 0,
GPIO0D4_SPDIF,
GPIO0D3_SHIFT = 6,
GPIO0D3_MASK = 1 << GPIO0D3_SHIFT,
GPIO0D3_GPIO = 0,
GPIO0D3_PWM3,
GPIO0D2_SHIFT = 4,
GPIO0D2_MASK = 1 << GPIO0D2_SHIFT,
GPIO0D2_GPIO = 0,
GPIO0D2_PWM0,
};
/* GRF_GPIO1A_IOMUX */
enum {
GPIO1A5_SHIFT = 10,
GPIO1A5_MASK = 1 << GPIO1A5_SHIFT,
GPIO1A5_GPIO = 0,
GPIO1A5_I2S_SDI,
GPIO1A4_SHIFT = 8,
GPIO1A4_MASK = 1 << GPIO1A4_SHIFT,
GPIO1A4_GPIO = 0,
GPIO1A4_I2S_SD0,
GPIO1A3_SHIFT = 6,
GPIO1A3_MASK = 1 << GPIO1A3_SHIFT,
GPIO1A3_GPIO = 0,
GPIO1A3_I2S_LRCKTX,
GPIO1A2_SHIFT = 4,
GPIO1A2_MASK = 3 << GPIO1A2_SHIFT,
GPIO1A2_GPIO = 0,
GPIO1A2_I2S_LRCKRX,
GPIO1A2_PWM1_0,
GPIO1A1_SHIFT = 2,
GPIO1A1_MASK = 1 << GPIO1A1_SHIFT,
GPIO1A1_GPIO = 0,
GPIO1A1_I2S_SCLK,
GPIO1A0_SHIFT = 0,
GPIO1A0_MASK = 1 << GPIO1A0_SHIFT,
GPIO1A0_GPIO = 0,
GPIO1A0_I2S_MCLK,
};
/* GRF_GPIO1B_IOMUX */
enum {
GPIO1B7_SHIFT = 14,
GPIO1B7_MASK = 1 << GPIO1B7_SHIFT,
GPIO1B7_GPIO = 0,
GPIO1B7_MMC0_CMD,
GPIO1B3_SHIFT = 6,
GPIO1B3_MASK = 1 << GPIO1B3_SHIFT,
GPIO1B3_GPIO = 0,
GPIO1B3_HDMI_HPD,
GPIO1B2_SHIFT = 4,
GPIO1B2_MASK = 1 << GPIO1B2_SHIFT,
GPIO1B2_GPIO = 0,
GPIO1B2_HDMI_SCL,
GPIO1B1_SHIFT = 2,
GPIO1B1_MASK = 1 << GPIO1B1_SHIFT,
GPIO1B1_GPIO = 0,
GPIO1B1_HDMI_SDA,
GPIO1B0_SHIFT = 0,
GPIO1B0_MASK = 1 << GPIO1B0_SHIFT,
GPIO1B0_GPIO = 0,
GPIO1B0_HDMI_CEC,
};
/* GRF_GPIO1C_IOMUX */
enum {
GPIO1C5_SHIFT = 10,
GPIO1C5_MASK = 3 << GPIO1C5_SHIFT,
GPIO1C5_GPIO = 0,
GPIO1C5_MMC0_D3,
GPIO1C5_JTAG_TMS,
GPIO1C4_SHIFT = 8,
GPIO1C4_MASK = 3 << GPIO1C4_SHIFT,
GPIO1C4_GPIO = 0,
GPIO1C4_MMC0_D2,
GPIO1C4_JTAG_TCK,
GPIO1C3_SHIFT = 6,
GPIO1C3_MASK = 3 << GPIO1C3_SHIFT,
GPIO1C3_GPIO = 0,
GPIO1C3_MMC0_D1,
GPIO1C3_UART2_SOUT,
GPIO1C2_SHIFT = 4,
GPIO1C2_MASK = 3 << GPIO1C2_SHIFT ,
GPIO1C2_GPIO = 0,
GPIO1C2_MMC0_D0,
GPIO1C2_UART2_SIN,
GPIO1C1_SHIFT = 2,
GPIO1C1_MASK = 1 << GPIO1C1_SHIFT,
GPIO1C1_GPIO = 0,
GPIO1C1_MMC0_DETN,
GPIO1C0_SHIFT = 0,
GPIO1C0_MASK = 1 << GPIO1C0_SHIFT,
GPIO1C0_GPIO = 0,
GPIO1C0_MMC0_CLKOUT,
};
/* GRF_GPIO1D_IOMUX */
enum {
GPIO1D7_SHIFT = 14,
GPIO1D7_MASK = 3 << GPIO1D7_SHIFT,
GPIO1D7_GPIO = 0,
GPIO1D7_NAND_D7,
GPIO1D7_EMMC_D7,
GPIO1D7_SPI_CSN1,
GPIO1D6_SHIFT = 12,
GPIO1D6_MASK = 3 << GPIO1D6_SHIFT,
GPIO1D6_GPIO = 0,
GPIO1D6_NAND_D6,
GPIO1D6_EMMC_D6,
GPIO1D6_SPI_CSN0,
GPIO1D5_SHIFT = 10,
GPIO1D5_MASK = 3 << GPIO1D5_SHIFT,
GPIO1D5_GPIO = 0,
GPIO1D5_NAND_D5,
GPIO1D5_EMMC_D5,
GPIO1D5_SPI_TXD,
GPIO1D4_SHIFT = 8,
GPIO1D4_MASK = 3 << GPIO1D4_SHIFT,
GPIO1D4_GPIO = 0,
GPIO1D4_NAND_D4,
GPIO1D4_EMMC_D4,
GPIO1D4_SPI_RXD,
GPIO1D3_SHIFT = 6,
GPIO1D3_MASK = 3 << GPIO1D3_SHIFT,
GPIO1D3_GPIO = 0,
GPIO1D3_NAND_D3,
GPIO1D3_EMMC_D3,
GPIO1D3_SFC_SIO3,
GPIO1D2_SHIFT = 4,
GPIO1D2_MASK = 3 << GPIO1D2_SHIFT,
GPIO1D2_GPIO = 0,
GPIO1D2_NAND_D2,
GPIO1D2_EMMC_D2,
GPIO1D2_SFC_SIO2,
GPIO1D1_SHIFT = 2,
GPIO1D1_MASK = 3 << GPIO1D1_SHIFT,
GPIO1D1_GPIO = 0,
GPIO1D1_NAND_D1,
GPIO1D1_EMMC_D1,
GPIO1D1_SFC_SIO1,
GPIO1D0_SHIFT = 0,
GPIO1D0_MASK = 3 << GPIO1D0_SHIFT,
GPIO1D0_GPIO = 0,
GPIO1D0_NAND_D0,
GPIO1D0_EMMC_D0,
GPIO1D0_SFC_SIO0,
};
/* GRF_GPIO2A_IOMUX */
enum {
GPIO2A7_SHIFT = 14,
GPIO2A7_MASK = 1 << GPIO2A7_SHIFT,
GPIO2A7_GPIO = 0,
GPIO2A7_TESTCLK_OUT,
GPIO2A6_SHIFT = 12,
GPIO2A6_MASK = 1 << GPIO2A6_SHIFT,
GPIO2A6_GPIO = 0,
GPIO2A6_NAND_CS0,
GPIO2A4_SHIFT = 8,
GPIO2A4_MASK = 3 << GPIO2A4_SHIFT,
GPIO2A4_GPIO = 0,
GPIO2A4_NAND_RDY,
GPIO2A4_EMMC_CMD,
GPIO2A3_SFC_CLK,
GPIO2A3_SHIFT = 6,
GPIO2A3_MASK = 3 << GPIO2A3_SHIFT,
GPIO2A3_GPIO = 0,
GPIO2A3_NAND_RDN,
GPIO2A4_SFC_CSN1,
GPIO2A2_SHIFT = 4,
GPIO2A2_MASK = 3 << GPIO2A2_SHIFT,
GPIO2A2_GPIO = 0,
GPIO2A2_NAND_WRN,
GPIO2A4_SFC_CSN0,
GPIO2A1_SHIFT = 2,
GPIO2A1_MASK = 3 << GPIO2A1_SHIFT,
GPIO2A1_GPIO = 0,
GPIO2A1_NAND_CLE,
GPIO2A1_EMMC_CLKOUT,
GPIO2A0_SHIFT = 0,
GPIO2A0_MASK = 3 << GPIO2A0_SHIFT,
GPIO2A0_GPIO = 0,
GPIO2A0_NAND_ALE,
GPIO2A0_SPI_CLK,
};
/* GRF_GPIO2B_IOMUX */
enum {
GPIO2B7_SHIFT = 14,
GPIO2B7_MASK = 1 << GPIO2B7_SHIFT,
GPIO2B7_GPIO = 0,
GPIO2B7_MAC_RXER,
GPIO2B6_SHIFT = 12,
GPIO2B6_MASK = 3 << GPIO2B6_SHIFT,
GPIO2B6_GPIO = 0,
GPIO2B6_MAC_CLKOUT,
GPIO2B6_MAC_CLKIN,
GPIO2B5_SHIFT = 10,
GPIO2B5_MASK = 1 << GPIO2B5_SHIFT,
GPIO2B5_GPIO = 0,
GPIO2B5_MAC_TXEN,
GPIO2B4_SHIFT = 8,
GPIO2B4_MASK = 1 << GPIO2B4_SHIFT,
GPIO2B4_GPIO = 0,
GPIO2B4_MAC_MDIO,
GPIO2B2_SHIFT = 4,
GPIO2B2_MASK = 1 << GPIO2B2_SHIFT,
GPIO2B2_GPIO = 0,
GPIO2B2_MAC_CRS,
};
/* GRF_GPIO2C_IOMUX */
enum {
GPIO2C7_SHIFT = 14,
GPIO2C7_MASK = 3 << GPIO2C7_SHIFT,
GPIO2C7_GPIO = 0,
GPIO2C7_UART1_SOUT,
GPIO2C7_TESTCLK_OUT1,
GPIO2C6_SHIFT = 12,
GPIO2C6_MASK = 1 << GPIO2C6_SHIFT,
GPIO2C6_GPIO = 0,
GPIO2C6_UART1_SIN,
GPIO2C5_SHIFT = 10,
GPIO2C5_MASK = 1 << GPIO2C5_SHIFT,
GPIO2C5_GPIO = 0,
GPIO2C5_I2C2_SCL,
GPIO2C4_SHIFT = 8,
GPIO2C4_MASK = 1 << GPIO2C4_SHIFT,
GPIO2C4_GPIO = 0,
GPIO2C4_I2C2_SDA,
GPIO2C3_SHIFT = 6,
GPIO2C3_MASK = 1 << GPIO2C3_SHIFT,
GPIO2C3_GPIO = 0,
GPIO2C3_MAC_TXD0,
GPIO2C2_SHIFT = 4,
GPIO2C2_MASK = 1 << GPIO2C2_SHIFT,
GPIO2C2_GPIO = 0,
GPIO2C2_MAC_TXD1,
GPIO2C1_SHIFT = 2,
GPIO2C1_MASK = 1 << GPIO2C1_SHIFT,
GPIO2C1_GPIO = 0,
GPIO2C1_MAC_RXD0,
GPIO2C0_SHIFT = 0,
GPIO2C0_MASK = 1 << GPIO2C0_SHIFT,
GPIO2C0_GPIO = 0,
GPIO2C0_MAC_RXD1,
};
/* GRF_GPIO2D_IOMUX */
enum {
GPIO2D6_SHIFT = 12,
GPIO2D6_MASK = 1 << GPIO2D6_SHIFT,
GPIO2D6_GPIO = 0,
GPIO2D6_I2S_SDO1,
GPIO2D5_SHIFT = 10,
GPIO2D5_MASK = 1 << GPIO2D5_SHIFT,
GPIO2D5_GPIO = 0,
GPIO2D5_I2S_SDO2,
GPIO2D4_SHIFT = 8,
GPIO2D4_MASK = 1 << GPIO2D4_SHIFT,
GPIO2D4_GPIO = 0,
GPIO2D4_I2S_SDO3,
GPIO2D1_SHIFT = 2,
GPIO2D1_MASK = 1 << GPIO2D1_SHIFT,
GPIO2D1_GPIO = 0,
GPIO2D1_MAC_MDC,
};
struct rk3036_pinctrl_priv {
struct rk3036_grf *grf;
};
static void pinctrl_rk3036_pwm_config(struct rk3036_grf *grf, int pwm_id)
{
switch (pwm_id) {
case PERIPH_ID_PWM0:
rk_clrsetreg(&grf->gpio0d_iomux, GPIO0D2_MASK,
GPIO0D2_PWM0 << GPIO0D2_SHIFT);
break;
case PERIPH_ID_PWM1:
rk_clrsetreg(&grf->gpio0a_iomux, GPIO0A0_MASK,
GPIO0A0_PWM1 << GPIO0A0_SHIFT);
break;
case PERIPH_ID_PWM2:
rk_clrsetreg(&grf->gpio0a_iomux, GPIO0A1_MASK,
GPIO0A1_PWM2 << GPIO0A1_SHIFT);
break;
case PERIPH_ID_PWM3:
rk_clrsetreg(&grf->gpio0a_iomux, GPIO0D3_MASK,
GPIO0D3_PWM3 << GPIO0D3_SHIFT);
break;
default:
debug("pwm id = %d iomux error!\n", pwm_id);
break;
}
}
static void pinctrl_rk3036_i2c_config(struct rk3036_grf *grf, int i2c_id)
{
switch (i2c_id) {
case PERIPH_ID_I2C0:
rk_clrsetreg(&grf->gpio0a_iomux,
GPIO0A1_MASK | GPIO0A0_MASK,
GPIO0A1_I2C0_SDA << GPIO0A1_SHIFT |
GPIO0A0_I2C0_SCL << GPIO0A0_SHIFT);
break;
case PERIPH_ID_I2C1:
rk_clrsetreg(&grf->gpio0a_iomux,
GPIO0A3_MASK | GPIO0A2_MASK,
GPIO0A3_I2C1_SDA << GPIO0A3_SHIFT |
GPIO0A2_I2C1_SCL << GPIO0A2_SHIFT);
break;
case PERIPH_ID_I2C2:
rk_clrsetreg(&grf->gpio2c_iomux,
GPIO2C5_MASK | GPIO2C4_MASK,
GPIO2C5_I2C2_SCL << GPIO2C5_SHIFT |
GPIO2C4_I2C2_SDA << GPIO2C4_SHIFT);
break;
}
}
static void pinctrl_rk3036_spi_config(struct rk3036_grf *grf, int cs)
{
switch (cs) {
case 0:
rk_clrsetreg(&grf->gpio1d_iomux, GPIO1D6_MASK,
GPIO1D6_SPI_CSN0 << GPIO1D6_SHIFT);
break;
case 1:
rk_clrsetreg(&grf->gpio1d_iomux, GPIO1D7_MASK,
GPIO1D7_SPI_CSN1 << GPIO1D7_SHIFT);
break;
}
rk_clrsetreg(&grf->gpio1d_iomux,
GPIO1D5_MASK | GPIO1D4_MASK,
GPIO1D5_SPI_TXD << GPIO1D5_SHIFT |
GPIO1D4_SPI_RXD << GPIO1D4_SHIFT);
rk_clrsetreg(&grf->gpio2a_iomux, GPIO2A0_MASK,
GPIO2A0_SPI_CLK << GPIO2A0_SHIFT);
}
static void pinctrl_rk3036_uart_config(struct rk3036_grf *grf, int uart_id)
{
switch (uart_id) {
case PERIPH_ID_UART0:
rk_clrsetreg(&grf->gpio0c_iomux,
GPIO0C3_MASK | GPIO0C2_MASK |
GPIO0C1_MASK | GPIO0C0_MASK,
GPIO0C3_UART0_CTSN << GPIO0C3_SHIFT |
GPIO0C2_UART0_RTSN << GPIO0C2_SHIFT |
GPIO0C1_UART0_SIN << GPIO0C1_SHIFT |
GPIO0C0_UART0_SOUT << GPIO0C0_SHIFT);
break;
case PERIPH_ID_UART1:
rk_clrsetreg(&grf->gpio2c_iomux,
GPIO2C7_MASK | GPIO2C6_MASK,
GPIO2C7_UART1_SOUT << GPIO2C7_SHIFT |
GPIO2C6_UART1_SIN << GPIO2C6_SHIFT);
break;
case PERIPH_ID_UART2:
rk_clrsetreg(&grf->gpio1c_iomux,
GPIO1C3_MASK | GPIO1C2_MASK,
GPIO1C3_UART2_SOUT << GPIO1C3_SHIFT |
GPIO1C2_UART2_SIN << GPIO1C2_SHIFT);
break;
}
}
static void pinctrl_rk3036_sdmmc_config(struct rk3036_grf *grf, int mmc_id)
{
switch (mmc_id) {
case PERIPH_ID_EMMC:
rk_clrsetreg(&grf->gpio1d_iomux, 0xffff,
GPIO1D7_EMMC_D7 << GPIO1D7_SHIFT |
GPIO1D6_EMMC_D6 << GPIO1D6_SHIFT |
GPIO1D5_EMMC_D5 << GPIO1D5_SHIFT |
GPIO1D4_EMMC_D4 << GPIO1D4_SHIFT |
GPIO1D3_EMMC_D3 << GPIO1D3_SHIFT |
GPIO1D2_EMMC_D2 << GPIO1D2_SHIFT |
GPIO1D1_EMMC_D1 << GPIO1D1_SHIFT |
GPIO1D0_EMMC_D0 << GPIO1D0_SHIFT);
rk_clrsetreg(&grf->gpio2a_iomux,
GPIO2A4_MASK | GPIO2A1_MASK,
GPIO2A4_EMMC_CMD << GPIO2A4_SHIFT |
GPIO2A1_EMMC_CLKOUT << GPIO2A1_SHIFT);
break;
case PERIPH_ID_SDCARD:
rk_clrsetreg(&grf->gpio1c_iomux, 0xffff,
GPIO1C5_MMC0_D3 << GPIO1C5_SHIFT |
GPIO1C4_MMC0_D2 << GPIO1C4_SHIFT |
GPIO1C3_MMC0_D1 << GPIO1C3_SHIFT |
GPIO1C2_MMC0_D0 << GPIO1C2_SHIFT |
GPIO1C1_MMC0_DETN << GPIO1C1_SHIFT |
GPIO1C0_MMC0_CLKOUT << GPIO1C0_SHIFT);
break;
}
}
static int rk3036_pinctrl_request(struct udevice *dev, int func, int flags)
{
struct rk3036_pinctrl_priv *priv = dev_get_priv(dev);
debug("%s: func=%x, flags=%x\n", __func__, func, flags);
switch (func) {
case PERIPH_ID_PWM0:
case PERIPH_ID_PWM1:
case PERIPH_ID_PWM2:
case PERIPH_ID_PWM3:
pinctrl_rk3036_pwm_config(priv->grf, func);
break;
case PERIPH_ID_I2C0:
case PERIPH_ID_I2C1:
case PERIPH_ID_I2C2:
pinctrl_rk3036_i2c_config(priv->grf, func);
break;
case PERIPH_ID_SPI0:
pinctrl_rk3036_spi_config(priv->grf, flags);
break;
case PERIPH_ID_UART0:
case PERIPH_ID_UART1:
case PERIPH_ID_UART2:
pinctrl_rk3036_uart_config(priv->grf, func);
break;
case PERIPH_ID_SDMMC0:
case PERIPH_ID_SDMMC1:
pinctrl_rk3036_sdmmc_config(priv->grf, func);
break;
default:
return -EINVAL;
}
return 0;
}
static int rk3036_pinctrl_get_periph_id(struct udevice *dev,
struct udevice *periph)
{
u32 cell[3];
int ret;
ret = dev_read_u32_array(periph, "interrupts", cell, ARRAY_SIZE(cell));
if (ret < 0)
return -EINVAL;
switch (cell[1]) {
case 14:
return PERIPH_ID_SDCARD;
case 16:
return PERIPH_ID_EMMC;
case 20:
return PERIPH_ID_UART0;
case 21:
return PERIPH_ID_UART1;
case 22:
return PERIPH_ID_UART2;
case 23:
return PERIPH_ID_SPI0;
case 24:
return PERIPH_ID_I2C0;
case 25:
return PERIPH_ID_I2C1;
case 26:
return PERIPH_ID_I2C2;
case 30:
return PERIPH_ID_PWM0;
}
return -ENOENT;
}
static int rk3036_pinctrl_set_state_simple(struct udevice *dev,
struct udevice *periph)
{
int func;
func = rk3036_pinctrl_get_periph_id(dev, periph);
if (func < 0)
return func;
return rk3036_pinctrl_request(dev, func, 0);
}
static struct pinctrl_ops rk3036_pinctrl_ops = {
.set_state_simple = rk3036_pinctrl_set_state_simple,
.request = rk3036_pinctrl_request,
.get_periph_id = rk3036_pinctrl_get_periph_id,
};
static int rk3036_pinctrl_probe(struct udevice *dev)
{
struct rk3036_pinctrl_priv *priv = dev_get_priv(dev);
priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
debug("%s: grf=%p\n", __func__, priv->grf);
return 0;
}
static const struct udevice_id rk3036_pinctrl_ids[] = {
{ .compatible = "rockchip,rk3036-pinctrl" },
{ }
};
U_BOOT_DRIVER(pinctrl_rk3036) = {
.name = "pinctrl_rk3036",
.id = UCLASS_PINCTRL,
.of_match = rk3036_pinctrl_ids,
.priv_auto_alloc_size = sizeof(struct rk3036_pinctrl_priv),
.ops = &rk3036_pinctrl_ops,
.bind = dm_scan_fdt_dev,
.probe = rk3036_pinctrl_probe,
};