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u-boot/drivers/pinctrl/rockchip/pinctrl_rk3036.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

671 lines
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// 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,
};
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