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https://github.com/AsahiLinux/u-boot
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8c2bb589e2
The RK3399 has a total of 9 I2C controllers. To support these, the enum in periph.h is extended and the mapping from the IRQ numbers to the peripheral-ids is extended to ensure that pinctrl requests are passed through to the function configuring the I2C pins. For I2C8, the pinctrl is implemented and tested (on a RK3399-Q7) using communication with the FAN53555 connected on I2C8. Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
457 lines
12 KiB
C
457 lines
12 KiB
C
/*
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* (C) Copyright 2016 Rockchip Electronics Co., Ltd
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <syscon.h>
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#include <asm/io.h>
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#include <asm/arch/grf_rk3399.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/periph.h>
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#include <asm/arch/clock.h>
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#include <dm/pinctrl.h>
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DECLARE_GLOBAL_DATA_PTR;
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struct rk3399_pinctrl_priv {
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struct rk3399_grf_regs *grf;
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struct rk3399_pmugrf_regs *pmugrf;
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};
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static void pinctrl_rk3399_pwm_config(struct rk3399_grf_regs *grf,
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struct rk3399_pmugrf_regs *pmugrf, int pwm_id)
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{
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switch (pwm_id) {
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case PERIPH_ID_PWM0:
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rk_clrsetreg(&grf->gpio4c_iomux,
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GRF_GPIO4C2_SEL_MASK,
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GRF_PWM_0 << GRF_GPIO4C2_SEL_SHIFT);
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break;
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case PERIPH_ID_PWM1:
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rk_clrsetreg(&grf->gpio4c_iomux,
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GRF_GPIO4C6_SEL_MASK,
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GRF_PWM_1 << GRF_GPIO4C6_SEL_SHIFT);
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break;
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case PERIPH_ID_PWM2:
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rk_clrsetreg(&pmugrf->gpio1c_iomux,
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PMUGRF_GPIO1C3_SEL_MASK,
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PMUGRF_PWM_2 << PMUGRF_GPIO1C3_SEL_SHIFT);
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break;
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case PERIPH_ID_PWM3:
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if (readl(&pmugrf->soc_con0) & (1 << 5))
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rk_clrsetreg(&pmugrf->gpio1b_iomux,
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PMUGRF_GPIO1B6_SEL_MASK,
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PMUGRF_PWM_3B << PMUGRF_GPIO1B6_SEL_SHIFT);
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else
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rk_clrsetreg(&pmugrf->gpio0a_iomux,
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PMUGRF_GPIO0A6_SEL_MASK,
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PMUGRF_PWM_3A << PMUGRF_GPIO0A6_SEL_SHIFT);
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break;
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default:
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debug("pwm id = %d iomux error!\n", pwm_id);
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break;
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}
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}
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static void pinctrl_rk3399_i2c_config(struct rk3399_grf_regs *grf,
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struct rk3399_pmugrf_regs *pmugrf,
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int i2c_id)
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{
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switch (i2c_id) {
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case PERIPH_ID_I2C0:
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rk_clrsetreg(&pmugrf->gpio1b_iomux,
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PMUGRF_GPIO1B7_SEL_MASK,
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PMUGRF_I2C0PMU_SDA << PMUGRF_GPIO1B7_SEL_SHIFT);
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rk_clrsetreg(&pmugrf->gpio1c_iomux,
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PMUGRF_GPIO1C0_SEL_MASK,
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PMUGRF_I2C0PMU_SCL << PMUGRF_GPIO1C0_SEL_SHIFT);
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break;
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case PERIPH_ID_I2C8:
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rk_clrsetreg(&pmugrf->gpio1c_iomux,
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PMUGRF_GPIO1C4_SEL_MASK,
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PMUGRF_I2C8PMU_SDA << PMUGRF_GPIO1C4_SEL_SHIFT);
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rk_clrsetreg(&pmugrf->gpio1c_iomux,
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PMUGRF_GPIO1C5_SEL_MASK,
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PMUGRF_I2C8PMU_SCL << PMUGRF_GPIO1C5_SEL_SHIFT);
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break;
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case PERIPH_ID_I2C1:
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case PERIPH_ID_I2C2:
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case PERIPH_ID_I2C3:
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case PERIPH_ID_I2C4:
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case PERIPH_ID_I2C5:
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case PERIPH_ID_I2C6:
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case PERIPH_ID_I2C7:
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default:
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debug("i2c id = %d iomux error!\n", i2c_id);
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break;
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}
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}
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static void pinctrl_rk3399_lcdc_config(struct rk3399_grf_regs *grf, int lcd_id)
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{
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switch (lcd_id) {
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case PERIPH_ID_LCDC0:
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break;
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default:
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debug("lcdc id = %d iomux error!\n", lcd_id);
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break;
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}
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}
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static int pinctrl_rk3399_spi_config(struct rk3399_grf_regs *grf,
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struct rk3399_pmugrf_regs *pmugrf,
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enum periph_id spi_id, int cs)
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{
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switch (spi_id) {
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case PERIPH_ID_SPI0:
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switch (cs) {
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case 0:
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rk_clrsetreg(&grf->gpio3a_iomux,
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GRF_GPIO3A7_SEL_MASK,
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GRF_SPI0NORCODEC_CSN0
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<< GRF_GPIO3A7_SEL_SHIFT);
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break;
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case 1:
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rk_clrsetreg(&grf->gpio3b_iomux,
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GRF_GPIO3B0_SEL_MASK,
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GRF_SPI0NORCODEC_CSN1
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<< GRF_GPIO3B0_SEL_SHIFT);
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break;
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default:
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goto err;
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}
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rk_clrsetreg(&grf->gpio3a_iomux,
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GRF_GPIO3A4_SEL_MASK | GRF_GPIO3A5_SEL_SHIFT
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| GRF_GPIO3A6_SEL_SHIFT,
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GRF_SPI0NORCODEC_RXD << GRF_GPIO3A4_SEL_SHIFT
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| GRF_SPI0NORCODEC_RXD << GRF_GPIO3A5_SEL_SHIFT
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| GRF_SPI0NORCODEC_RXD << GRF_GPIO3A6_SEL_SHIFT);
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break;
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case PERIPH_ID_SPI1:
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if (cs != 0)
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goto err;
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rk_clrsetreg(&pmugrf->gpio1a_iomux,
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PMUGRF_GPIO1A7_SEL_MASK,
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PMUGRF_SPI1EC_RXD << PMUGRF_GPIO1A7_SEL_SHIFT);
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rk_clrsetreg(&pmugrf->gpio1b_iomux,
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PMUGRF_GPIO1B0_SEL_MASK | PMUGRF_GPIO1B1_SEL_MASK
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| PMUGRF_GPIO1B2_SEL_MASK,
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PMUGRF_SPI1EC_TXD << PMUGRF_GPIO1B0_SEL_SHIFT
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| PMUGRF_SPI1EC_CLK << PMUGRF_GPIO1B1_SEL_SHIFT
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| PMUGRF_SPI1EC_CSN0 << PMUGRF_GPIO1B2_SEL_SHIFT);
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break;
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case PERIPH_ID_SPI2:
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if (cs != 0)
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goto err;
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rk_clrsetreg(&grf->gpio2b_iomux,
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GRF_GPIO2B1_SEL_MASK | GRF_GPIO2B2_SEL_MASK
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| GRF_GPIO2B3_SEL_MASK | GRF_GPIO2B4_SEL_MASK,
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GRF_SPI2TPM_RXD << GRF_GPIO2B1_SEL_SHIFT
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| GRF_SPI2TPM_TXD << GRF_GPIO2B2_SEL_SHIFT
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| GRF_SPI2TPM_CLK << GRF_GPIO2B3_SEL_SHIFT
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| GRF_SPI2TPM_CSN0 << GRF_GPIO2B4_SEL_SHIFT);
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break;
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case PERIPH_ID_SPI5:
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if (cs != 0)
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goto err;
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rk_clrsetreg(&grf->gpio2c_iomux,
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GRF_GPIO2C4_SEL_MASK | GRF_GPIO2C5_SEL_MASK
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| GRF_GPIO2C6_SEL_MASK | GRF_GPIO2C7_SEL_MASK,
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GRF_SPI5EXPPLUS_RXD << GRF_GPIO2C4_SEL_SHIFT
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| GRF_SPI5EXPPLUS_TXD << GRF_GPIO2C5_SEL_SHIFT
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| GRF_SPI5EXPPLUS_CLK << GRF_GPIO2C6_SEL_SHIFT
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| GRF_SPI5EXPPLUS_CSN0 << GRF_GPIO2C7_SEL_SHIFT);
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break;
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default:
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printf("%s: spi_id %d is not supported.\n", __func__, spi_id);
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goto err;
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}
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return 0;
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err:
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debug("rkspi: periph%d cs=%d not supported", spi_id, cs);
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return -ENOENT;
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}
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static void pinctrl_rk3399_uart_config(struct rk3399_grf_regs *grf,
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struct rk3399_pmugrf_regs *pmugrf,
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int uart_id)
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{
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switch (uart_id) {
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case PERIPH_ID_UART2:
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/* Using channel-C by default */
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rk_clrsetreg(&grf->gpio4c_iomux,
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GRF_GPIO4C3_SEL_MASK,
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GRF_UART2DGBC_SIN << GRF_GPIO4C3_SEL_SHIFT);
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rk_clrsetreg(&grf->gpio4c_iomux,
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GRF_GPIO4C4_SEL_MASK,
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GRF_UART2DBGC_SOUT << GRF_GPIO4C4_SEL_SHIFT);
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break;
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case PERIPH_ID_UART0:
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case PERIPH_ID_UART1:
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case PERIPH_ID_UART3:
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case PERIPH_ID_UART4:
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default:
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debug("uart id = %d iomux error!\n", uart_id);
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break;
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}
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}
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static void pinctrl_rk3399_sdmmc_config(struct rk3399_grf_regs *grf, int mmc_id)
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{
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switch (mmc_id) {
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case PERIPH_ID_EMMC:
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break;
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case PERIPH_ID_SDCARD:
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rk_clrsetreg(&grf->gpio4b_iomux,
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GRF_GPIO4B0_SEL_MASK | GRF_GPIO4B1_SEL_MASK
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| GRF_GPIO4B2_SEL_MASK | GRF_GPIO4B3_SEL_MASK
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| GRF_GPIO4B4_SEL_MASK | GRF_GPIO4B5_SEL_MASK,
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GRF_SDMMC_DATA0 << GRF_GPIO4B0_SEL_SHIFT
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| GRF_SDMMC_DATA1 << GRF_GPIO4B1_SEL_SHIFT
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| GRF_SDMMC_DATA2 << GRF_GPIO4B2_SEL_SHIFT
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| GRF_SDMMC_DATA3 << GRF_GPIO4B3_SEL_SHIFT
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| GRF_SDMMC_CLKOUT << GRF_GPIO4B4_SEL_SHIFT
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| GRF_SDMMC_CMD << GRF_GPIO4B5_SEL_SHIFT);
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break;
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default:
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debug("mmc id = %d iomux error!\n", mmc_id);
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break;
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}
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}
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#if CONFIG_IS_ENABLED(GMAC_ROCKCHIP)
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static void pinctrl_rk3399_gmac_config(struct rk3399_grf_regs *grf, int mmc_id)
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{
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rk_clrsetreg(&grf->gpio3a_iomux,
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GRF_GPIO3A0_SEL_MASK | GRF_GPIO3A1_SEL_MASK |
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GRF_GPIO3A2_SEL_MASK | GRF_GPIO3A3_SEL_MASK |
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GRF_GPIO3A4_SEL_MASK | GRF_GPIO3A5_SEL_MASK |
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GRF_GPIO3A6_SEL_MASK | GRF_GPIO3A7_SEL_MASK,
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GRF_MAC_TXD2 << GRF_GPIO3A0_SEL_SHIFT |
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GRF_MAC_TXD3 << GRF_GPIO3A1_SEL_SHIFT |
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GRF_MAC_RXD2 << GRF_GPIO3A2_SEL_SHIFT |
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GRF_MAC_RXD3 << GRF_GPIO3A3_SEL_SHIFT |
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GRF_MAC_TXD0 << GRF_GPIO3A4_SEL_SHIFT |
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GRF_MAC_TXD1 << GRF_GPIO3A5_SEL_SHIFT |
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GRF_MAC_RXD0 << GRF_GPIO3A6_SEL_SHIFT |
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GRF_MAC_RXD1 << GRF_GPIO3A7_SEL_SHIFT);
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rk_clrsetreg(&grf->gpio3b_iomux,
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GRF_GPIO3B0_SEL_MASK | GRF_GPIO3B1_SEL_MASK |
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GRF_GPIO3B3_SEL_MASK |
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GRF_GPIO3B4_SEL_MASK | GRF_GPIO3B5_SEL_MASK |
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GRF_GPIO3B6_SEL_MASK,
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GRF_MAC_MDC << GRF_GPIO3B0_SEL_SHIFT |
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GRF_MAC_RXDV << GRF_GPIO3B1_SEL_SHIFT |
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GRF_MAC_CLK << GRF_GPIO3B3_SEL_SHIFT |
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GRF_MAC_TXEN << GRF_GPIO3B4_SEL_SHIFT |
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GRF_MAC_MDIO << GRF_GPIO3B5_SEL_SHIFT |
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GRF_MAC_RXCLK << GRF_GPIO3B6_SEL_SHIFT);
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rk_clrsetreg(&grf->gpio3c_iomux,
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GRF_GPIO3C1_SEL_MASK,
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GRF_MAC_TXCLK << GRF_GPIO3C1_SEL_SHIFT);
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/* Set drive strength for GMAC tx io, value 3 means 13mA */
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rk_clrsetreg(&grf->gpio3_e[0],
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GRF_GPIO3A0_E_MASK | GRF_GPIO3A1_E_MASK |
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GRF_GPIO3A4_E_MASK | GRF_GPIO3A5_E0_MASK,
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3 << GRF_GPIO3A0_E_SHIFT |
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3 << GRF_GPIO3A1_E_SHIFT |
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3 << GRF_GPIO3A4_E_SHIFT |
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1 << GRF_GPIO3A5_E0_SHIFT);
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rk_clrsetreg(&grf->gpio3_e[1],
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GRF_GPIO3A5_E12_MASK,
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1 << GRF_GPIO3A5_E12_SHIFT);
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rk_clrsetreg(&grf->gpio3_e[2],
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GRF_GPIO3B4_E_MASK,
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3 << GRF_GPIO3B4_E_SHIFT);
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rk_clrsetreg(&grf->gpio3_e[4],
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GRF_GPIO3C1_E_MASK,
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3 << GRF_GPIO3C1_E_SHIFT);
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}
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#endif
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#if !defined(CONFIG_SPL_BUILD)
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static void pinctrl_rk3399_hdmi_config(struct rk3399_grf_regs *grf, int hdmi_id)
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{
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switch (hdmi_id) {
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case PERIPH_ID_HDMI:
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rk_clrsetreg(&grf->gpio4c_iomux,
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GRF_GPIO4C0_SEL_MASK | GRF_GPIO4C1_SEL_MASK,
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(GRF_HDMII2C_SCL << GRF_GPIO4C0_SEL_SHIFT) |
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(GRF_HDMII2C_SDA << GRF_GPIO4C1_SEL_SHIFT));
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break;
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default:
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debug("%s: hdmi_id = %d unsupported\n", __func__, hdmi_id);
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break;
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}
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}
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#endif
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static int rk3399_pinctrl_request(struct udevice *dev, int func, int flags)
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{
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struct rk3399_pinctrl_priv *priv = dev_get_priv(dev);
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debug("%s: func=%x, flags=%x\n", __func__, func, flags);
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switch (func) {
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case PERIPH_ID_PWM0:
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case PERIPH_ID_PWM1:
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case PERIPH_ID_PWM2:
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case PERIPH_ID_PWM3:
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case PERIPH_ID_PWM4:
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pinctrl_rk3399_pwm_config(priv->grf, priv->pmugrf, func);
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break;
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case PERIPH_ID_I2C0:
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case PERIPH_ID_I2C1:
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case PERIPH_ID_I2C2:
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case PERIPH_ID_I2C3:
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case PERIPH_ID_I2C4:
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case PERIPH_ID_I2C5:
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case PERIPH_ID_I2C6:
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case PERIPH_ID_I2C7:
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case PERIPH_ID_I2C8:
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pinctrl_rk3399_i2c_config(priv->grf, priv->pmugrf, func);
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break;
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case PERIPH_ID_SPI0:
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case PERIPH_ID_SPI1:
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case PERIPH_ID_SPI2:
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case PERIPH_ID_SPI3:
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case PERIPH_ID_SPI4:
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case PERIPH_ID_SPI5:
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pinctrl_rk3399_spi_config(priv->grf, priv->pmugrf, func, flags);
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break;
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case PERIPH_ID_UART0:
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case PERIPH_ID_UART1:
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case PERIPH_ID_UART2:
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case PERIPH_ID_UART3:
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case PERIPH_ID_UART4:
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pinctrl_rk3399_uart_config(priv->grf, priv->pmugrf, func);
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break;
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case PERIPH_ID_LCDC0:
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case PERIPH_ID_LCDC1:
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pinctrl_rk3399_lcdc_config(priv->grf, func);
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break;
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case PERIPH_ID_SDMMC0:
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case PERIPH_ID_SDMMC1:
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pinctrl_rk3399_sdmmc_config(priv->grf, func);
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break;
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#if CONFIG_IS_ENABLED(GMAC_ROCKCHIP)
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case PERIPH_ID_GMAC:
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pinctrl_rk3399_gmac_config(priv->grf, func);
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break;
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#endif
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#if !defined(CONFIG_SPL_BUILD)
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case PERIPH_ID_HDMI:
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pinctrl_rk3399_hdmi_config(priv->grf, func);
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break;
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#endif
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int rk3399_pinctrl_get_periph_id(struct udevice *dev,
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struct udevice *periph)
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{
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#if !CONFIG_IS_ENABLED(OF_PLATDATA)
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u32 cell[3];
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int ret;
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ret = dev_read_u32_array(periph, "interrupts", cell, ARRAY_SIZE(cell));
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if (ret < 0)
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return -EINVAL;
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switch (cell[1]) {
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case 68:
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return PERIPH_ID_SPI0;
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case 53:
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return PERIPH_ID_SPI1;
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case 52:
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return PERIPH_ID_SPI2;
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case 132:
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return PERIPH_ID_SPI5;
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case 57:
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return PERIPH_ID_I2C0;
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case 59: /* Note strange order */
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return PERIPH_ID_I2C1;
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case 35:
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return PERIPH_ID_I2C2;
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case 34:
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return PERIPH_ID_I2C3;
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case 56:
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return PERIPH_ID_I2C4;
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case 38:
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return PERIPH_ID_I2C5;
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case 37:
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return PERIPH_ID_I2C6;
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case 36:
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return PERIPH_ID_I2C7;
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case 58:
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return PERIPH_ID_I2C8;
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case 65:
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return PERIPH_ID_SDMMC1;
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#if CONFIG_IS_ENABLED(GMAC_ROCKCHIP)
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case 12:
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return PERIPH_ID_GMAC;
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#endif
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#if !defined(CONFIG_SPL_BUILD)
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case 23:
|
|
return PERIPH_ID_HDMI;
|
|
#endif
|
|
}
|
|
#endif
|
|
return -ENOENT;
|
|
}
|
|
|
|
static int rk3399_pinctrl_set_state_simple(struct udevice *dev,
|
|
struct udevice *periph)
|
|
{
|
|
int func;
|
|
|
|
func = rk3399_pinctrl_get_periph_id(dev, periph);
|
|
if (func < 0)
|
|
return func;
|
|
|
|
return rk3399_pinctrl_request(dev, func, 0);
|
|
}
|
|
|
|
static struct pinctrl_ops rk3399_pinctrl_ops = {
|
|
.set_state_simple = rk3399_pinctrl_set_state_simple,
|
|
.request = rk3399_pinctrl_request,
|
|
.get_periph_id = rk3399_pinctrl_get_periph_id,
|
|
};
|
|
|
|
static int rk3399_pinctrl_probe(struct udevice *dev)
|
|
{
|
|
struct rk3399_pinctrl_priv *priv = dev_get_priv(dev);
|
|
int ret = 0;
|
|
|
|
priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
|
|
priv->pmugrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUGRF);
|
|
debug("%s: grf=%p, pmugrf=%p\n", __func__, priv->grf, priv->pmugrf);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct udevice_id rk3399_pinctrl_ids[] = {
|
|
{ .compatible = "rockchip,rk3399-pinctrl" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(pinctrl_rk3399) = {
|
|
.name = "rockchip_rk3399_pinctrl",
|
|
.id = UCLASS_PINCTRL,
|
|
.of_match = rk3399_pinctrl_ids,
|
|
.priv_auto_alloc_size = sizeof(struct rk3399_pinctrl_priv),
|
|
.ops = &rk3399_pinctrl_ops,
|
|
#if !CONFIG_IS_ENABLED(OF_PLATDATA)
|
|
.bind = dm_scan_fdt_dev,
|
|
#endif
|
|
.probe = rk3399_pinctrl_probe,
|
|
};
|