diff options
Diffstat (limited to 'drivers/pinctrl/rockchip/pinctrl-rk3399.c')
| -rw-r--r-- | drivers/pinctrl/rockchip/pinctrl-rk3399.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3399.c b/drivers/pinctrl/rockchip/pinctrl-rk3399.c index c5aab647a5..1c77ca18cd 100644 --- a/drivers/pinctrl/rockchip/pinctrl-rk3399.c +++ b/drivers/pinctrl/rockchip/pinctrl-rk3399.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0+ /* * (C) Copyright 2019 Rockchip Electronics Co., Ltd + * (C) Copyright 2019 Theobroma Systems Design und Consulting GmbH */ #include <common.h> @@ -8,6 +9,8 @@ #include <dm/pinctrl.h> #include <regmap.h> #include <syscon.h> +#include <asm/arch/grf_rk3399.h> +#include <asm/arch/periph.h> #include "pinctrl-rockchip.h" @@ -172,6 +175,136 @@ static struct rockchip_pin_ctrl rk3399_pin_ctrl = { .drv_calc_reg = rk3399_calc_drv_reg_and_bit, }; +static void pinctrl_rk3399_i2c_config(struct udevice *dev, int i2c_id) +{ + struct rockchip_pinctrl_priv *priv = dev_get_priv(dev); + + debug("%s: i2c_id=%d\n", __func__, i2c_id); + switch (i2c_id) { + case PERIPH_ID_I2C0: + debug("here\n"); + regmap_write(priv->regmap_pmu, + offsetof(struct rk3399_pmugrf_regs, + gpio1b_iomux), + PMUGRF_GPIO1B7_SEL_MASK << 16 | + PMUGRF_I2C0PMU_SDA << PMUGRF_GPIO1B7_SEL_SHIFT); + regmap_write(priv->regmap_pmu, + offsetof(struct rk3399_pmugrf_regs, + gpio1c_iomux), + PMUGRF_GPIO1C0_SEL_MASK << 16 | + PMUGRF_I2C0PMU_SCL << PMUGRF_GPIO1C0_SEL_SHIFT); + break; + } +} + +static int rk3399_pinctrl_request(struct udevice *dev, int func, int flags) +{ + debug("%s: func=%x, flags=%x\n", __func__, func, flags); + switch (func) { + case PERIPH_ID_I2C0: + case PERIPH_ID_I2C1: + case PERIPH_ID_I2C2: + case PERIPH_ID_I2C3: + case PERIPH_ID_I2C4: + case PERIPH_ID_I2C5: + case PERIPH_ID_I2C6: + case PERIPH_ID_I2C7: + case PERIPH_ID_I2C8: + pinctrl_rk3399_i2c_config(dev, func); + break; +#if 0 + case PERIPH_ID_SPI0: + case PERIPH_ID_SPI1: + case PERIPH_ID_SPI2: + case PERIPH_ID_SPI3: + case PERIPH_ID_SPI4: + case PERIPH_ID_SPI5: + pinctrl_rk3399_spi_config(priv->grf, priv->pmugrf, func, flags); + break; +#endif +#if 0 + case PERIPH_ID_UART0: + case PERIPH_ID_UART1: + case PERIPH_ID_UART2: + case PERIPH_ID_UART3: + case PERIPH_ID_UART4: + pinctrl_rk3399_uart_config(priv->grf, priv->pmugrf, func); + break; + case PERIPH_ID_SDCARD: + case PERIPH_ID_EMMC: + pinctrl_rk3399_sdmmc_config(priv->grf, func); + break; +#endif + default: + return -EINVAL; + } + + return 0; +} + +static int rk3399_pinctrl_get_periph_id(struct udevice *dev, + struct udevice *periph) +{ + debug("%s: periph addr 0x%llx\n", __func__, dev_read_addr(periph)); +#if !CONFIG_IS_ENABLED(OF_PLATDATA) + 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 68: + return PERIPH_ID_SPI0; + case 53: + return PERIPH_ID_SPI1; + case 52: + return PERIPH_ID_SPI2; + case 132: + return PERIPH_ID_SPI5; + case 57: + return PERIPH_ID_I2C0; + case 59: + return PERIPH_ID_I2C1; + case 35: + return PERIPH_ID_I2C2; + case 34: + return PERIPH_ID_I2C3; + case 56: + return PERIPH_ID_I2C4; + case 38: + return PERIPH_ID_I2C5; + case 37: + return PERIPH_ID_I2C6; + case 36: + return PERIPH_ID_I2C7; + case 58: + return PERIPH_ID_I2C8; + case 65: + return PERIPH_ID_SDCARD; + case 11: + return PERIPH_ID_EMMC; + } +#endif + + return -ENOENT; +} + +static int rk3399_pinctrl_set_state_simple(struct udevice *dev, + struct udevice *periph) +{ + int func = rk3399_pinctrl_get_periph_id(dev, periph); + if (func < 0) + return func; + + return rk3399_pinctrl_request(dev, func, 0); +} + +const struct pinctrl_ops rk3399_pinctrl_simple_ops = { + .set_state_simple = rk3399_pinctrl_set_state_simple, +}; + static const struct udevice_id rk3399_pinctrl_ids[] = { { .compatible = "rockchip,rk3399-pinctrl", @@ -185,7 +318,11 @@ U_BOOT_DRIVER(pinctrl_rk3399) = { .id = UCLASS_PINCTRL, .of_match = rk3399_pinctrl_ids, .priv_auto_alloc_size = sizeof(struct rockchip_pinctrl_priv), +#if CONFIG_IS_ENABLED(PINCTRL_FULL) .ops = &rockchip_pinctrl_ops, +#else + .ops = &rk3399_pinctrl_simple_ops, +#endif #if !CONFIG_IS_ENABLED(OF_PLATDATA) .bind = dm_scan_fdt_dev, #endif |