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u-boot/drivers/pinctrl/rockchip/pinctrl_rk322x.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

894 lines
20 KiB
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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2017 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_rk322x.h>
#include <asm/arch/hardware.h>
#include <asm/arch/periph.h>
#include <dm/pinctrl.h>
DECLARE_GLOBAL_DATA_PTR;
/* GRF_GPIO0A_IOMUX */
enum {
GPIO0A7_SHIFT = 14,
GPIO0A7_MASK = 3 << GPIO0A7_SHIFT,
GPIO0A7_GPIO = 0,
GPIO0A7_I2C3_SDA,
GPIO0A7_HDMI_DDCSDA,
GPIO0A6_SHIFT = 12,
GPIO0A6_MASK = 3 << GPIO0A6_SHIFT,
GPIO0A6_GPIO = 0,
GPIO0A6_I2C3_SCL,
GPIO0A6_HDMI_DDCSCL,
GPIO0A3_SHIFT = 6,
GPIO0A3_MASK = 3 << GPIO0A3_SHIFT,
GPIO0A3_GPIO = 0,
GPIO0A3_I2C1_SDA,
GPIO0A3_SDIO_CMD,
GPIO0A2_SHIFT = 4,
GPIO0A2_MASK = 3 << GPIO0A2_SHIFT,
GPIO0A2_GPIO = 0,
GPIO0A2_I2C1_SCL,
GPIO0A1_SHIFT = 2,
GPIO0A1_MASK = 3 << GPIO0A1_SHIFT,
GPIO0A1_GPIO = 0,
GPIO0A1_I2C0_SDA,
GPIO0A0_SHIFT = 0,
GPIO0A0_MASK = 3 << GPIO0A0_SHIFT,
GPIO0A0_GPIO = 0,
GPIO0A0_I2C0_SCL,
};
/* GRF_GPIO0B_IOMUX */
enum {
GPIO0B7_SHIFT = 14,
GPIO0B7_MASK = 3 << GPIO0B7_SHIFT,
GPIO0B7_GPIO = 0,
GPIO0B7_HDMI_HDP,
GPIO0B6_SHIFT = 12,
GPIO0B6_MASK = 3 << GPIO0B6_SHIFT,
GPIO0B6_GPIO = 0,
GPIO0B6_I2S_SDI,
GPIO0B6_SPI_CSN0,
GPIO0B5_SHIFT = 10,
GPIO0B5_MASK = 3 << GPIO0B5_SHIFT,
GPIO0B5_GPIO = 0,
GPIO0B5_I2S_SDO,
GPIO0B5_SPI_RXD,
GPIO0B3_SHIFT = 6,
GPIO0B3_MASK = 3 << GPIO0B3_SHIFT,
GPIO0B3_GPIO = 0,
GPIO0B3_I2S1_LRCKRX,
GPIO0B3_SPI_TXD,
GPIO0B1_SHIFT = 2,
GPIO0B1_MASK = 3 << GPIO0B1_SHIFT,
GPIO0B1_GPIO = 0,
GPIO0B1_I2S_SCLK,
GPIO0B1_SPI_CLK,
GPIO0B0_SHIFT = 0,
GPIO0B0_MASK = 3,
GPIO0B0_GPIO = 0,
GPIO0B0_I2S_MCLK,
};
/* GRF_GPIO0C_IOMUX */
enum {
GPIO0C4_SHIFT = 8,
GPIO0C4_MASK = 3 << GPIO0C4_SHIFT,
GPIO0C4_GPIO = 0,
GPIO0C4_HDMI_CECSDA,
GPIO0C1_SHIFT = 2,
GPIO0C1_MASK = 3 << GPIO0C1_SHIFT,
GPIO0C1_GPIO = 0,
GPIO0C1_UART0_RSTN,
GPIO0C1_CLK_OUT1,
};
/* GRF_GPIO0D_IOMUX */
enum {
GPIO0D6_SHIFT = 12,
GPIO0D6_MASK = 3 << GPIO0D6_SHIFT,
GPIO0D6_GPIO = 0,
GPIO0D6_SDIO_PWREN,
GPIO0D6_PWM11,
GPIO0D4_SHIFT = 8,
GPIO0D4_MASK = 3 << GPIO0D4_SHIFT,
GPIO0D4_GPIO = 0,
GPIO0D4_PWM2,
GPIO0D3_SHIFT = 6,
GPIO0D3_MASK = 3 << GPIO0D3_SHIFT,
GPIO0D3_GPIO = 0,
GPIO0D3_PWM1,
GPIO0D2_SHIFT = 4,
GPIO0D2_MASK = 3 << GPIO0D2_SHIFT,
GPIO0D2_GPIO = 0,
GPIO0D2_PWM0,
};
/* GRF_GPIO1A_IOMUX */
enum {
GPIO1A7_SHIFT = 14,
GPIO1A7_MASK = 1,
GPIO1A7_GPIO = 0,
GPIO1A7_SDMMC_WRPRT,
};
/* GRF_GPIO1B_IOMUX */
enum {
GPIO1B7_SHIFT = 14,
GPIO1B7_MASK = 3 << GPIO1B7_SHIFT,
GPIO1B7_GPIO = 0,
GPIO1B7_SDMMC_CMD,
GPIO1B6_SHIFT = 12,
GPIO1B6_MASK = 3 << GPIO1B6_SHIFT,
GPIO1B6_GPIO = 0,
GPIO1B6_SDMMC_PWREN,
GPIO1B4_SHIFT = 8,
GPIO1B4_MASK = 3 << GPIO1B4_SHIFT,
GPIO1B4_GPIO = 0,
GPIO1B4_SPI_CSN1,
GPIO1B4_PWM12,
GPIO1B3_SHIFT = 6,
GPIO1B3_MASK = 3 << GPIO1B3_SHIFT,
GPIO1B3_GPIO = 0,
GPIO1B3_UART1_RSTN,
GPIO1B3_PWM13,
GPIO1B2_SHIFT = 4,
GPIO1B2_MASK = 3 << GPIO1B2_SHIFT,
GPIO1B2_GPIO = 0,
GPIO1B2_UART1_SIN,
GPIO1B2_UART21_SIN,
GPIO1B1_SHIFT = 2,
GPIO1B1_MASK = 3 << GPIO1B1_SHIFT,
GPIO1B1_GPIO = 0,
GPIO1B1_UART1_SOUT,
GPIO1B1_UART21_SOUT,
};
/* GRF_GPIO1C_IOMUX */
enum {
GPIO1C7_SHIFT = 14,
GPIO1C7_MASK = 3 << GPIO1C7_SHIFT,
GPIO1C7_GPIO = 0,
GPIO1C7_NAND_CS3,
GPIO1C7_EMMC_RSTNOUT,
GPIO1C6_SHIFT = 12,
GPIO1C6_MASK = 3 << GPIO1C6_SHIFT,
GPIO1C6_GPIO = 0,
GPIO1C6_NAND_CS2,
GPIO1C6_EMMC_CMD,
GPIO1C5_SHIFT = 10,
GPIO1C5_MASK = 3 << GPIO1C5_SHIFT,
GPIO1C5_GPIO = 0,
GPIO1C5_SDMMC_D3,
GPIO1C5_JTAG_TMS,
GPIO1C4_SHIFT = 8,
GPIO1C4_MASK = 3 << GPIO1C4_SHIFT,
GPIO1C4_GPIO = 0,
GPIO1C4_SDMMC_D2,
GPIO1C4_JTAG_TCK,
GPIO1C3_SHIFT = 6,
GPIO1C3_MASK = 3 << GPIO1C3_SHIFT,
GPIO1C3_GPIO = 0,
GPIO1C3_SDMMC_D1,
GPIO1C3_UART2_SIN,
GPIO1C2_SHIFT = 4,
GPIO1C2_MASK = 3 << GPIO1C2_SHIFT,
GPIO1C2_GPIO = 0,
GPIO1C2_SDMMC_D0,
GPIO1C2_UART2_SOUT,
GPIO1C1_SHIFT = 2,
GPIO1C1_MASK = 3 << GPIO1C1_SHIFT,
GPIO1C1_GPIO = 0,
GPIO1C1_SDMMC_DETN,
GPIO1C0_SHIFT = 0,
GPIO1C0_MASK = 3 << GPIO1C0_SHIFT,
GPIO1C0_GPIO = 0,
GPIO1C0_SDMMC_CLKOUT,
};
/* GRF_GPIO1D_IOMUX */
enum {
GPIO1D7_SHIFT = 14,
GPIO1D7_MASK = 3 << GPIO1D7_SHIFT,
GPIO1D7_GPIO = 0,
GPIO1D7_NAND_D7,
GPIO1D7_EMMC_D7,
GPIO1D6_SHIFT = 12,
GPIO1D6_MASK = 3 << GPIO1D6_SHIFT,
GPIO1D6_GPIO = 0,
GPIO1D6_NAND_D6,
GPIO1D6_EMMC_D6,
GPIO1D5_SHIFT = 10,
GPIO1D5_MASK = 3 << GPIO1D5_SHIFT,
GPIO1D5_GPIO = 0,
GPIO1D5_NAND_D5,
GPIO1D5_EMMC_D5,
GPIO1D4_SHIFT = 8,
GPIO1D4_MASK = 3 << GPIO1D4_SHIFT,
GPIO1D4_GPIO = 0,
GPIO1D4_NAND_D4,
GPIO1D4_EMMC_D4,
GPIO1D3_SHIFT = 6,
GPIO1D3_MASK = 3 << GPIO1D3_SHIFT,
GPIO1D3_GPIO = 0,
GPIO1D3_NAND_D3,
GPIO1D3_EMMC_D3,
GPIO1D2_SHIFT = 4,
GPIO1D2_MASK = 3 << GPIO1D2_SHIFT,
GPIO1D2_GPIO = 0,
GPIO1D2_NAND_D2,
GPIO1D2_EMMC_D2,
GPIO1D1_SHIFT = 2,
GPIO1D1_MASK = 3 << GPIO1D1_SHIFT,
GPIO1D1_GPIO = 0,
GPIO1D1_NAND_D1,
GPIO1D1_EMMC_D1,
GPIO1D0_SHIFT = 0,
GPIO1D0_MASK = 3 << GPIO1D0_SHIFT,
GPIO1D0_GPIO = 0,
GPIO1D0_NAND_D0,
GPIO1D0_EMMC_D0,
};
/* GRF_GPIO2A_IOMUX */
enum {
GPIO2A7_SHIFT = 14,
GPIO2A7_MASK = 3 << GPIO2A7_SHIFT,
GPIO2A7_GPIO = 0,
GPIO2A7_NAND_DQS,
GPIO2A7_EMMC_CLKOUT,
GPIO2A5_SHIFT = 10,
GPIO2A5_MASK = 3 << GPIO2A5_SHIFT,
GPIO2A5_GPIO = 0,
GPIO2A5_NAND_WP,
GPIO2A5_EMMC_PWREN,
GPIO2A4_SHIFT = 8,
GPIO2A4_MASK = 3 << GPIO2A4_SHIFT,
GPIO2A4_GPIO = 0,
GPIO2A4_NAND_RDY,
GPIO2A4_EMMC_CMD,
GPIO2A3_SHIFT = 6,
GPIO2A3_MASK = 3 << GPIO2A3_SHIFT,
GPIO2A3_GPIO = 0,
GPIO2A3_NAND_RDN,
GPIO2A4_SPI1_CSN1,
GPIO2A2_SHIFT = 4,
GPIO2A2_MASK = 3 << GPIO2A2_SHIFT,
GPIO2A2_GPIO = 0,
GPIO2A2_NAND_WRN,
GPIO2A4_SPI1_CSN0,
GPIO2A1_SHIFT = 2,
GPIO2A1_MASK = 3 << GPIO2A1_SHIFT,
GPIO2A1_GPIO = 0,
GPIO2A1_NAND_CLE,
GPIO2A1_SPI1_TXD,
GPIO2A0_SHIFT = 0,
GPIO2A0_MASK = 3 << GPIO2A0_SHIFT,
GPIO2A0_GPIO = 0,
GPIO2A0_NAND_ALE,
GPIO2A0_SPI1_RXD,
};
/* GRF_GPIO2B_IOMUX */
enum {
GPIO2B7_SHIFT = 14,
GPIO2B7_MASK = 3 << GPIO2B7_SHIFT,
GPIO2B7_GPIO = 0,
GPIO2B7_GMAC_RXER,
GPIO2B6_SHIFT = 12,
GPIO2B6_MASK = 3 << GPIO2B6_SHIFT,
GPIO2B6_GPIO = 0,
GPIO2B6_GMAC_CLK,
GPIO2B6_MAC_LINK,
GPIO2B5_SHIFT = 10,
GPIO2B5_MASK = 3 << GPIO2B5_SHIFT,
GPIO2B5_GPIO = 0,
GPIO2B5_GMAC_TXEN,
GPIO2B4_SHIFT = 8,
GPIO2B4_MASK = 3 << GPIO2B4_SHIFT,
GPIO2B4_GPIO = 0,
GPIO2B4_GMAC_MDIO,
GPIO2B3_SHIFT = 6,
GPIO2B3_MASK = 3 << GPIO2B3_SHIFT,
GPIO2B3_GPIO = 0,
GPIO2B3_GMAC_RXCLK,
GPIO2B2_SHIFT = 4,
GPIO2B2_MASK = 3 << GPIO2B2_SHIFT,
GPIO2B2_GPIO = 0,
GPIO2B2_GMAC_CRS,
GPIO2B1_SHIFT = 2,
GPIO2B1_MASK = 3 << GPIO2B1_SHIFT,
GPIO2B1_GPIO = 0,
GPIO2B1_GMAC_TXCLK,
GPIO2B0_SHIFT = 0,
GPIO2B0_MASK = 3 << GPIO2B0_SHIFT,
GPIO2B0_GPIO = 0,
GPIO2B0_GMAC_RXDV,
GPIO2B0_MAC_SPEED_IOUT,
};
/* GRF_GPIO2C_IOMUX */
enum {
GPIO2C7_SHIFT = 14,
GPIO2C7_MASK = 3 << GPIO2C7_SHIFT,
GPIO2C7_GPIO = 0,
GPIO2C7_GMAC_TXD3,
GPIO2C6_SHIFT = 12,
GPIO2C6_MASK = 3 << GPIO2C6_SHIFT,
GPIO2C6_GPIO = 0,
GPIO2C6_GMAC_TXD2,
GPIO2C5_SHIFT = 10,
GPIO2C5_MASK = 3 << GPIO2C5_SHIFT,
GPIO2C5_GPIO = 0,
GPIO2C5_I2C2_SCL,
GPIO2C5_GMAC_RXD2,
GPIO2C4_SHIFT = 8,
GPIO2C4_MASK = 3 << GPIO2C4_SHIFT,
GPIO2C4_GPIO = 0,
GPIO2C4_I2C2_SDA,
GPIO2C4_GMAC_RXD3,
GPIO2C3_SHIFT = 6,
GPIO2C3_MASK = 3 << GPIO2C3_SHIFT,
GPIO2C3_GPIO = 0,
GPIO2C3_GMAC_TXD0,
GPIO2C2_SHIFT = 4,
GPIO2C2_MASK = 3 << GPIO2C2_SHIFT,
GPIO2C2_GPIO = 0,
GPIO2C2_GMAC_TXD1,
GPIO2C1_SHIFT = 2,
GPIO2C1_MASK = 3 << GPIO2C1_SHIFT,
GPIO2C1_GPIO = 0,
GPIO2C1_GMAC_RXD0,
GPIO2C0_SHIFT = 0,
GPIO2C0_MASK = 3 << GPIO2C0_SHIFT,
GPIO2C0_GPIO = 0,
GPIO2C0_GMAC_RXD1,
};
/* GRF_GPIO2D_IOMUX */
enum {
GPIO2D1_SHIFT = 2,
GPIO2D1_MASK = 3 << GPIO2D1_SHIFT,
GPIO2D1_GPIO = 0,
GPIO2D1_GMAC_MDC,
GPIO2D0_SHIFT = 0,
GPIO2D0_MASK = 3,
GPIO2D0_GPIO = 0,
GPIO2D0_GMAC_COL,
};
/* GRF_GPIO3C_IOMUX */
enum {
GPIO3C6_SHIFT = 12,
GPIO3C6_MASK = 3 << GPIO3C6_SHIFT,
GPIO3C6_GPIO = 0,
GPIO3C6_DRV_VBUS1,
GPIO3C5_SHIFT = 10,
GPIO3C5_MASK = 3 << GPIO3C5_SHIFT,
GPIO3C5_GPIO = 0,
GPIO3C5_PWM10,
GPIO3C1_SHIFT = 2,
GPIO3C1_MASK = 3 << GPIO3C1_SHIFT,
GPIO3C1_GPIO = 0,
GPIO3C1_DRV_VBUS,
};
/* GRF_GPIO3D_IOMUX */
enum {
GPIO3D2_SHIFT = 4,
GPIO3D2_MASK = 3 << GPIO3D2_SHIFT,
GPIO3D2_GPIO = 0,
GPIO3D2_PWM3,
};
/* GRF_CON_IOMUX */
enum {
CON_IOMUX_GMACSEL_SHIFT = 15,
CON_IOMUX_GMACSEL_MASK = 1 << CON_IOMUX_GMACSEL_SHIFT,
CON_IOMUX_GMACSEL_1 = 1,
CON_IOMUX_UART1SEL_SHIFT = 11,
CON_IOMUX_UART1SEL_MASK = 1 << CON_IOMUX_UART1SEL_SHIFT,
CON_IOMUX_UART2SEL_SHIFT = 8,
CON_IOMUX_UART2SEL_MASK = 1 << CON_IOMUX_UART2SEL_SHIFT,
CON_IOMUX_UART2SEL_2 = 0,
CON_IOMUX_UART2SEL_21,
CON_IOMUX_EMMCSEL_SHIFT = 7,
CON_IOMUX_EMMCSEL_MASK = 1 << CON_IOMUX_EMMCSEL_SHIFT,
CON_IOMUX_PWM3SEL_SHIFT = 3,
CON_IOMUX_PWM3SEL_MASK = 1 << CON_IOMUX_PWM3SEL_SHIFT,
CON_IOMUX_PWM2SEL_SHIFT = 2,
CON_IOMUX_PWM2SEL_MASK = 1 << CON_IOMUX_PWM2SEL_SHIFT,
CON_IOMUX_PWM1SEL_SHIFT = 1,
CON_IOMUX_PWM1SEL_MASK = 1 << CON_IOMUX_PWM1SEL_SHIFT,
CON_IOMUX_PWM0SEL_SHIFT = 0,
CON_IOMUX_PWM0SEL_MASK = 1 << CON_IOMUX_PWM0SEL_SHIFT,
};
/* GRF_GPIO2B_E */
enum {
GRF_GPIO2B0_E_SHIFT = 0,
GRF_GPIO2B0_E_MASK = 3 << GRF_GPIO2B0_E_SHIFT,
GRF_GPIO2B1_E_SHIFT = 2,
GRF_GPIO2B1_E_MASK = 3 << GRF_GPIO2B1_E_SHIFT,
GRF_GPIO2B3_E_SHIFT = 6,
GRF_GPIO2B3_E_MASK = 3 << GRF_GPIO2B3_E_SHIFT,
GRF_GPIO2B4_E_SHIFT = 8,
GRF_GPIO2B4_E_MASK = 3 << GRF_GPIO2B4_E_SHIFT,
GRF_GPIO2B5_E_SHIFT = 10,
GRF_GPIO2B5_E_MASK = 3 << GRF_GPIO2B5_E_SHIFT,
GRF_GPIO2B6_E_SHIFT = 12,
GRF_GPIO2B6_E_MASK = 3 << GRF_GPIO2B6_E_SHIFT,
};
/* GRF_GPIO2C_E */
enum {
GRF_GPIO2C0_E_SHIFT = 0,
GRF_GPIO2C0_E_MASK = 3 << GRF_GPIO2C0_E_SHIFT,
GRF_GPIO2C1_E_SHIFT = 2,
GRF_GPIO2C1_E_MASK = 3 << GRF_GPIO2C1_E_SHIFT,
GRF_GPIO2C2_E_SHIFT = 4,
GRF_GPIO2C2_E_MASK = 3 << GRF_GPIO2C2_E_SHIFT,
GRF_GPIO2C3_E_SHIFT = 6,
GRF_GPIO2C3_E_MASK = 3 << GRF_GPIO2C3_E_SHIFT,
GRF_GPIO2C4_E_SHIFT = 8,
GRF_GPIO2C4_E_MASK = 3 << GRF_GPIO2C4_E_SHIFT,
GRF_GPIO2C5_E_SHIFT = 10,
GRF_GPIO2C5_E_MASK = 3 << GRF_GPIO2C5_E_SHIFT,
GRF_GPIO2C6_E_SHIFT = 12,
GRF_GPIO2C6_E_MASK = 3 << GRF_GPIO2C6_E_SHIFT,
GRF_GPIO2C7_E_SHIFT = 14,
GRF_GPIO2C7_E_MASK = 3 << GRF_GPIO2C7_E_SHIFT,
};
/* GRF_GPIO2D_E */
enum {
GRF_GPIO2D1_E_SHIFT = 2,
GRF_GPIO2D1_E_MASK = 3 << GRF_GPIO2D1_E_SHIFT,
};
/* GPIO Bias drive strength settings */
enum GPIO_BIAS {
GPIO_BIAS_2MA = 0,
GPIO_BIAS_4MA,
GPIO_BIAS_8MA,
GPIO_BIAS_12MA,
};
struct rk322x_pinctrl_priv {
struct rk322x_grf *grf;
};
static void pinctrl_rk322x_pwm_config(struct rk322x_grf *grf, int pwm_id)
{
u32 mux_con = readl(&grf->con_iomux);
switch (pwm_id) {
case PERIPH_ID_PWM0:
if (mux_con & CON_IOMUX_PWM0SEL_MASK)
rk_clrsetreg(&grf->gpio3c_iomux, GPIO3C5_MASK,
GPIO3C5_PWM10 << GPIO3C5_SHIFT);
else
rk_clrsetreg(&grf->gpio0d_iomux, GPIO0D2_MASK,
GPIO0D2_PWM0 << GPIO0D2_SHIFT);
break;
case PERIPH_ID_PWM1:
if (mux_con & CON_IOMUX_PWM1SEL_MASK)
rk_clrsetreg(&grf->gpio0d_iomux, GPIO0D6_MASK,
GPIO0D6_PWM11 << GPIO0D6_SHIFT);
else
rk_clrsetreg(&grf->gpio0d_iomux, GPIO0D3_MASK,
GPIO0D3_PWM1 << GPIO0D3_SHIFT);
break;
case PERIPH_ID_PWM2:
if (mux_con & CON_IOMUX_PWM2SEL_MASK)
rk_clrsetreg(&grf->gpio1b_iomux, GPIO1B4_MASK,
GPIO1B4_PWM12 << GPIO1B4_SHIFT);
else
rk_clrsetreg(&grf->gpio0d_iomux, GPIO0D4_MASK,
GPIO0D4_PWM2 << GPIO0D4_SHIFT);
break;
case PERIPH_ID_PWM3:
if (mux_con & CON_IOMUX_PWM3SEL_MASK)
rk_clrsetreg(&grf->gpio1b_iomux, GPIO1B3_MASK,
GPIO1B3_PWM13 << GPIO1B3_SHIFT);
else
rk_clrsetreg(&grf->gpio3d_iomux, GPIO3D2_MASK,
GPIO3D2_PWM3 << GPIO3D2_SHIFT);
break;
default:
debug("pwm id = %d iomux error!\n", pwm_id);
break;
}
}
static void pinctrl_rk322x_i2c_config(struct rk322x_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;
case PERIPH_ID_I2C3:
rk_clrsetreg(&grf->gpio0a_iomux,
GPIO0A7_MASK | GPIO0A6_MASK,
GPIO0A7_I2C3_SDA << GPIO0A7_SHIFT |
GPIO0A6_I2C3_SCL << GPIO0A6_SHIFT);
break;
}
}
static void pinctrl_rk322x_spi_config(struct rk322x_grf *grf, int cs)
{
switch (cs) {
case 0:
rk_clrsetreg(&grf->gpio0b_iomux, GPIO0B6_MASK,
GPIO0B6_SPI_CSN0 << GPIO0B6_SHIFT);
break;
case 1:
rk_clrsetreg(&grf->gpio1b_iomux, GPIO1B4_MASK,
GPIO1B4_SPI_CSN1 << GPIO1B4_SHIFT);
break;
}
rk_clrsetreg(&grf->gpio0b_iomux,
GPIO0B1_MASK | GPIO0B3_MASK | GPIO0B5_MASK,
GPIO0B5_SPI_RXD << GPIO0B5_SHIFT |
GPIO0B3_SPI_TXD << GPIO0B3_SHIFT |
GPIO0B1_SPI_CLK << GPIO0B1_SHIFT);
}
static void pinctrl_rk322x_uart_config(struct rk322x_grf *grf, int uart_id)
{
u32 mux_con = readl(&grf->con_iomux);
switch (uart_id) {
case PERIPH_ID_UART1:
if (!(mux_con & CON_IOMUX_UART1SEL_MASK))
rk_clrsetreg(&grf->gpio1b_iomux,
GPIO1B1_MASK | GPIO1B2_MASK,
GPIO1B1_UART1_SOUT << GPIO1B1_SHIFT |
GPIO1B2_UART1_SIN << GPIO1B2_SHIFT);
break;
case PERIPH_ID_UART2:
if (mux_con & CON_IOMUX_UART2SEL_MASK)
rk_clrsetreg(&grf->gpio1b_iomux,
GPIO1B1_MASK | GPIO1B2_MASK,
GPIO1B1_UART21_SOUT << GPIO1B1_SHIFT |
GPIO1B2_UART21_SIN << GPIO1B2_SHIFT);
else
rk_clrsetreg(&grf->gpio1c_iomux,
GPIO1C3_MASK | GPIO1C2_MASK,
GPIO1C3_UART2_SIN << GPIO1C3_SHIFT |
GPIO1C2_UART2_SOUT << GPIO1C2_SHIFT);
break;
}
}
static void pinctrl_rk322x_sdmmc_config(struct rk322x_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,
GPIO2A5_MASK | GPIO2A7_MASK,
GPIO2A5_EMMC_PWREN << GPIO2A5_SHIFT |
GPIO2A7_EMMC_CLKOUT << GPIO2A7_SHIFT);
rk_clrsetreg(&grf->gpio1c_iomux,
GPIO1C6_MASK | GPIO1C7_MASK,
GPIO1C6_EMMC_CMD << GPIO1C6_SHIFT |
GPIO1C7_EMMC_RSTNOUT << GPIO1C6_SHIFT);
break;
case PERIPH_ID_SDCARD:
rk_clrsetreg(&grf->gpio1b_iomux,
GPIO1B6_MASK | GPIO1B7_MASK,
GPIO1B6_SDMMC_PWREN << GPIO1B6_SHIFT |
GPIO1B7_SDMMC_CMD << GPIO1B7_SHIFT);
rk_clrsetreg(&grf->gpio1c_iomux, 0xfff,
GPIO1C5_SDMMC_D3 << GPIO1C5_SHIFT |
GPIO1C4_SDMMC_D2 << GPIO1C4_SHIFT |
GPIO1C3_SDMMC_D1 << GPIO1C3_SHIFT |
GPIO1C2_SDMMC_D0 << GPIO1C2_SHIFT |
GPIO1C1_SDMMC_DETN << GPIO1C1_SHIFT |
GPIO1C0_SDMMC_CLKOUT << GPIO1C0_SHIFT);
break;
}
}
#if CONFIG_IS_ENABLED(GMAC_ROCKCHIP)
static void pinctrl_rk322x_gmac_config(struct rk322x_grf *grf, int gmac_id)
{
switch (gmac_id) {
case PERIPH_ID_GMAC:
/* set rgmii pins mux */
rk_clrsetreg(&grf->gpio2b_iomux,
GPIO2B0_MASK |
GPIO2B1_MASK |
GPIO2B3_MASK |
GPIO2B4_MASK |
GPIO2B5_MASK |
GPIO2B6_MASK,
GPIO2B0_GMAC_RXDV << GPIO2B0_SHIFT |
GPIO2B1_GMAC_TXCLK << GPIO2B1_SHIFT |
GPIO2B3_GMAC_RXCLK << GPIO2B3_SHIFT |
GPIO2B4_GMAC_MDIO << GPIO2B4_SHIFT |
GPIO2B5_GMAC_TXEN << GPIO2B5_SHIFT |
GPIO2B6_GMAC_CLK << GPIO2B6_SHIFT);
rk_clrsetreg(&grf->gpio2c_iomux,
GPIO2C0_MASK |
GPIO2C1_MASK |
GPIO2C2_MASK |
GPIO2C3_MASK |
GPIO2C4_MASK |
GPIO2C5_MASK |
GPIO2C6_MASK |
GPIO2C7_MASK,
GPIO2C0_GMAC_RXD1 << GPIO2C0_SHIFT |
GPIO2C1_GMAC_RXD0 << GPIO2C1_SHIFT |
GPIO2C2_GMAC_TXD1 << GPIO2C2_SHIFT |
GPIO2C3_GMAC_TXD0 << GPIO2C3_SHIFT |
GPIO2C4_GMAC_RXD3 << GPIO2C4_SHIFT |
GPIO2C5_GMAC_RXD2 << GPIO2C5_SHIFT |
GPIO2C6_GMAC_TXD2 << GPIO2C6_SHIFT |
GPIO2C7_GMAC_TXD3 << GPIO2C7_SHIFT);
rk_clrsetreg(&grf->gpio2d_iomux,
GPIO2D1_MASK,
GPIO2D1_GMAC_MDC << GPIO2D1_SHIFT);
/*
* set rgmii tx pins to 12ma drive-strength,
* clean others with 2ma.
*/
rk_clrsetreg(&grf->gpio2_e[1],
GRF_GPIO2B0_E_MASK |
GRF_GPIO2B1_E_MASK |
GRF_GPIO2B3_E_MASK |
GRF_GPIO2B4_E_MASK |
GRF_GPIO2B5_E_MASK |
GRF_GPIO2B6_E_MASK,
GPIO_BIAS_2MA << GRF_GPIO2B0_E_SHIFT |
GPIO_BIAS_12MA << GRF_GPIO2B1_E_SHIFT |
GPIO_BIAS_2MA << GRF_GPIO2B3_E_SHIFT |
GPIO_BIAS_2MA << GRF_GPIO2B4_E_SHIFT |
GPIO_BIAS_12MA << GRF_GPIO2B5_E_SHIFT |
GPIO_BIAS_2MA << GRF_GPIO2B6_E_SHIFT);
rk_clrsetreg(&grf->gpio2_e[2],
GRF_GPIO2C0_E_MASK |
GRF_GPIO2C1_E_MASK |
GRF_GPIO2C2_E_MASK |
GRF_GPIO2C3_E_MASK |
GRF_GPIO2C4_E_MASK |
GRF_GPIO2C5_E_MASK |
GRF_GPIO2C6_E_MASK |
GRF_GPIO2C7_E_MASK,
GPIO_BIAS_2MA << GRF_GPIO2C0_E_SHIFT |
GPIO_BIAS_2MA << GRF_GPIO2C1_E_SHIFT |
GPIO_BIAS_12MA << GRF_GPIO2C2_E_SHIFT |
GPIO_BIAS_12MA << GRF_GPIO2C3_E_SHIFT |
GPIO_BIAS_2MA << GRF_GPIO2C4_E_SHIFT |
GPIO_BIAS_2MA << GRF_GPIO2C5_E_SHIFT |
GPIO_BIAS_12MA << GRF_GPIO2C6_E_SHIFT |
GPIO_BIAS_12MA << GRF_GPIO2C7_E_SHIFT);
rk_clrsetreg(&grf->gpio2_e[3],
GRF_GPIO2D1_E_MASK,
GPIO_BIAS_2MA << GRF_GPIO2D1_E_SHIFT);
break;
default:
debug("gmac id = %d iomux error!\n", gmac_id);
break;
}
}
#endif
static int rk322x_pinctrl_request(struct udevice *dev, int func, int flags)
{
struct rk322x_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_rk322x_pwm_config(priv->grf, func);
break;
case PERIPH_ID_I2C0:
case PERIPH_ID_I2C1:
case PERIPH_ID_I2C2:
pinctrl_rk322x_i2c_config(priv->grf, func);
break;
case PERIPH_ID_SPI0:
pinctrl_rk322x_spi_config(priv->grf, flags);
break;
case PERIPH_ID_UART0:
case PERIPH_ID_UART1:
case PERIPH_ID_UART2:
pinctrl_rk322x_uart_config(priv->grf, func);
break;
case PERIPH_ID_SDMMC0:
case PERIPH_ID_SDMMC1:
pinctrl_rk322x_sdmmc_config(priv->grf, func);
break;
#if CONFIG_IS_ENABLED(GMAC_ROCKCHIP)
case PERIPH_ID_GMAC:
pinctrl_rk322x_gmac_config(priv->grf, func);
break;
#endif
default:
return -EINVAL;
}
return 0;
}
static int rk322x_pinctrl_get_periph_id(struct udevice *dev,
struct udevice *periph)
{
u32 cell[3];
int ret;
ret = fdtdec_get_int_array(gd->fdt_blob, dev_of_offset(periph),
"interrupts", cell, ARRAY_SIZE(cell));
if (ret < 0)
return -EINVAL;
switch (cell[1]) {
case 12:
return PERIPH_ID_SDCARD;
case 14:
return PERIPH_ID_EMMC;
case 36:
return PERIPH_ID_I2C0;
case 37:
return PERIPH_ID_I2C1;
case 38:
return PERIPH_ID_I2C2;
case 49:
return PERIPH_ID_SPI0;
case 50:
return PERIPH_ID_PWM0;
case 55:
return PERIPH_ID_UART0;
case 56:
return PERIPH_ID_UART1;
case 57:
return PERIPH_ID_UART2;
#if CONFIG_IS_ENABLED(GMAC_ROCKCHIP)
case 24:
return PERIPH_ID_GMAC;
#endif
}
return -ENOENT;
}
static int rk322x_pinctrl_set_state_simple(struct udevice *dev,
struct udevice *periph)
{
int func;
func = rk322x_pinctrl_get_periph_id(dev, periph);
if (func < 0)
return func;
return rk322x_pinctrl_request(dev, func, 0);
}
static struct pinctrl_ops rk322x_pinctrl_ops = {
.set_state_simple = rk322x_pinctrl_set_state_simple,
.request = rk322x_pinctrl_request,
.get_periph_id = rk322x_pinctrl_get_periph_id,
};
static int rk322x_pinctrl_probe(struct udevice *dev)
{
struct rk322x_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 rk322x_pinctrl_ids[] = {
{ .compatible = "rockchip,rk3228-pinctrl" },
{ }
};
U_BOOT_DRIVER(pinctrl_rk3228) = {
.name = "pinctrl_rk3228",
.id = UCLASS_PINCTRL,
.of_match = rk322x_pinctrl_ids,
.priv_auto_alloc_size = sizeof(struct rk322x_pinctrl_priv),
.ops = &rk322x_pinctrl_ops,
.bind = dm_scan_fdt_dev,
.probe = rk322x_pinctrl_probe,
};
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