diff options
author | Kever Yang <kever.yang@rock-chips.com> | 2017-02-23 07:37:53 (GMT) |
---|---|---|
committer | Simon Glass <sjg@chromium.org> | 2017-03-16 22:03:46 (GMT) |
commit | d439a46e46ab092bb6f0f16bead1a25b70b1a55b (patch) | |
tree | aad9bd5d0df1fdd091ba79f5a22699d2e9d8400b /drivers/pinctrl | |
parent | 41793000d77172a7472aad256049473c00e29dc5 (diff) | |
download | u-boot-d439a46e46ab092bb6f0f16bead1a25b70b1a55b.tar.xz |
rockchip: rk3328: add pinctrl driver
Add rk3328 pinctrl driver and grf/iomux structure definition.
Signed-off-by: William Zhang <william.zhang@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r-- | drivers/pinctrl/Kconfig | 9 | ||||
-rw-r--r-- | drivers/pinctrl/rockchip/Makefile | 1 | ||||
-rw-r--r-- | drivers/pinctrl/rockchip/pinctrl_rk3328.c | 419 |
3 files changed, 429 insertions, 0 deletions
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 397fbe1..2eab9bd 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -157,6 +157,15 @@ config PINCTRL_AT91PIO4 This option is to enable the AT91 pinctrl driver for AT91 PIO4 controller which is available on SAMA5D2 SoC. +config ROCKCHIP_RK3328_PINCTRL + bool "Rockchip pin control driver" + depends on DM + help + Support pin multiplexing control on Rockchip rk3328 SoCs. The driver + is controlled by a device tree node which contains both the GPIO + definitions and pin control functions for each available multiplex + function. + config ROCKCHIP_RK3399_PINCTRL bool "Rockchip pin control driver" depends on DM diff --git a/drivers/pinctrl/rockchip/Makefile b/drivers/pinctrl/rockchip/Makefile index cc99aee..b0b698a 100644 --- a/drivers/pinctrl/rockchip/Makefile +++ b/drivers/pinctrl/rockchip/Makefile @@ -8,4 +8,5 @@ obj-$(CONFIG_ROCKCHIP_RK3036_PINCTRL) += pinctrl_rk3036.o obj-$(CONFIG_ROCKCHIP_RK3188_PINCTRL) += pinctrl_rk3188.o obj-$(CONFIG_ROCKCHIP_RK3288_PINCTRL) += pinctrl_rk3288.o +obj-$(CONFIG_ROCKCHIP_RK3328_PINCTRL) += pinctrl_rk3328.o obj-$(CONFIG_ROCKCHIP_RK3399_PINCTRL) += pinctrl_rk3399.o diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3328.c b/drivers/pinctrl/rockchip/pinctrl_rk3328.c new file mode 100644 index 0000000..5ca6782 --- /dev/null +++ b/drivers/pinctrl/rockchip/pinctrl_rk3328.c @@ -0,0 +1,419 @@ +/* + * (C) Copyright 2016 Rockchip Electronics Co., Ltd + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <syscon.h> +#include <asm/arch/clock.h> +#include <asm/arch/hardware.h> +#include <asm/arch/grf_rk3328.h> +#include <asm/arch/periph.h> +#include <asm/io.h> +#include <dm/pinctrl.h> + +DECLARE_GLOBAL_DATA_PTR; + +struct rk3328_pinctrl_priv { + struct rk3328_grf_regs *grf; +}; + +enum { + /* GRF_GPIO0A_IOMUX */ + GRF_GPIO0A5_SEL_SHIFT = 10, + GRF_GPIO0A5_SEL_MASK = 3 << GRF_GPIO0A5_SEL_SHIFT, + GRF_I2C3_SCL = 2, + + GRF_GPIO0A6_SEL_SHIFT = 12, + GRF_GPIO0A6_SEL_MASK = 3 << GRF_GPIO0A6_SEL_SHIFT, + GRF_I2C3_SDA = 2, + + GRF_GPIO0A7_SEL_SHIFT = 14, + GRF_GPIO0A7_SEL_MASK = 3 << GRF_GPIO0A7_SEL_SHIFT, + GRF_EMMC_DATA0 = 2, + + /* GRF_GPIO1A_IOMUX */ + GRF_GPIO1A0_SEL_SHIFT = 0, + GRF_GPIO1A0_SEL_MASK = 0x3fff << GRF_GPIO1A0_SEL_SHIFT, + GRF_CARD_DATA_CLK_CMD_DETN = 0x1555, + + /* GRF_GPIO2A_IOMUX */ + GRF_GPIO2A0_SEL_SHIFT = 0, + GRF_GPIO2A0_SEL_MASK = 3 << GRF_GPIO2A0_SEL_SHIFT, + GRF_UART2_TX_M1 = 1, + + GRF_GPIO2A1_SEL_SHIFT = 2, + GRF_GPIO2A1_SEL_MASK = 3 << GRF_GPIO2A1_SEL_SHIFT, + GRF_UART2_RX_M1 = 1, + + GRF_GPIO2A2_SEL_SHIFT = 4, + GRF_GPIO2A2_SEL_MASK = 3 << GRF_GPIO2A2_SEL_SHIFT, + GRF_PWM_IR = 1, + + GRF_GPIO2A4_SEL_SHIFT = 8, + GRF_GPIO2A4_SEL_MASK = 3 << GRF_GPIO2A4_SEL_SHIFT, + GRF_PWM_0 = 1, + GRF_I2C1_SDA, + + GRF_GPIO2A5_SEL_SHIFT = 10, + GRF_GPIO2A5_SEL_MASK = 3 << GRF_GPIO2A5_SEL_SHIFT, + GRF_PWM_1 = 1, + GRF_I2C1_SCL, + + GRF_GPIO2A6_SEL_SHIFT = 12, + GRF_GPIO2A6_SEL_MASK = 3 << GRF_GPIO2A6_SEL_SHIFT, + GRF_PWM_2 = 1, + + GRF_GPIO2A7_SEL_SHIFT = 14, + GRF_GPIO2A7_SEL_MASK = 3 << GRF_GPIO2A7_SEL_SHIFT, + GRF_CARD_PWR_EN_M0 = 1, + + /* GRF_GPIO2BL_IOMUX */ + GRF_GPIO2BL0_SEL_SHIFT = 0, + GRF_GPIO2BL0_SEL_MASK = 0x3f << GRF_GPIO2BL0_SEL_SHIFT, + GRF_SPI_CLK_TX_RX_M0 = 0x15, + + GRF_GPIO2BL3_SEL_SHIFT = 6, + GRF_GPIO2BL3_SEL_MASK = 3 << GRF_GPIO2BL3_SEL_SHIFT, + GRF_SPI_CSN0_M0 = 1, + + GRF_GPIO2BL4_SEL_SHIFT = 8, + GRF_GPIO2BL4_SEL_MASK = 3 << GRF_GPIO2BL4_SEL_SHIFT, + GRF_SPI_CSN1_M0 = 1, + + GRF_GPIO2BL5_SEL_SHIFT = 10, + GRF_GPIO2BL5_SEL_MASK = 3 << GRF_GPIO2BL5_SEL_SHIFT, + GRF_I2C2_SDA = 1, + + GRF_GPIO2BL6_SEL_SHIFT = 12, + GRF_GPIO2BL6_SEL_MASK = 3 << GRF_GPIO2BL6_SEL_SHIFT, + GRF_I2C2_SCL = 1, + + /* GRF_GPIO2D_IOMUX */ + GRF_GPIO2D0_SEL_SHIFT = 0, + GRF_GPIO2D0_SEL_MASK = 3 << GRF_GPIO2D0_SEL_SHIFT, + GRF_I2C0_SCL = 1, + + GRF_GPIO2D1_SEL_SHIFT = 2, + GRF_GPIO2D1_SEL_MASK = 3 << GRF_GPIO2D1_SEL_SHIFT, + GRF_I2C0_SDA = 1, + + GRF_GPIO2D4_SEL_SHIFT = 8, + GRF_GPIO2D4_SEL_MASK = 0xff << GRF_GPIO2D4_SEL_SHIFT, + GRF_EMMC_DATA123 = 0xaa, + + /* GRF_GPIO3C_IOMUX */ + GRF_GPIO3C0_SEL_SHIFT = 0, + GRF_GPIO3C0_SEL_MASK = 0x3fff << GRF_GPIO3C0_SEL_SHIFT, + GRF_EMMC_DATA567_PWR_CLK_RSTN_CMD = 0x2aaa, + + /* GRF_COM_IOMUX */ + GRF_UART2_IOMUX_SEL_SHIFT = 0, + GRF_UART2_IOMUX_SEL_MASK = 3 << GRF_UART2_IOMUX_SEL_SHIFT, + GRF_UART2_IOMUX_SEL_M0 = 0, + GRF_UART2_IOMUX_SEL_M1, + + GRF_SPI_IOMUX_SEL_SHIFT = 4, + GRF_SPI_IOMUX_SEL_MASK = 3 << GRF_SPI_IOMUX_SEL_SHIFT, + GRF_SPI_IOMUX_SEL_M0 = 0, + GRF_SPI_IOMUX_SEL_M1, + GRF_SPI_IOMUX_SEL_M2, + + GRF_CARD_IOMUX_SEL_SHIFT = 7, + GRF_CARD_IOMUX_SEL_MASK = 1 << GRF_CARD_IOMUX_SEL_SHIFT, + GRF_CARD_IOMUX_SEL_M0 = 0, + GRF_CARD_IOMUX_SEL_M1, +}; + +static void pinctrl_rk3328_pwm_config(struct rk3328_grf_regs *grf, int pwm_id) +{ + switch (pwm_id) { + case PERIPH_ID_PWM0: + rk_clrsetreg(&grf->gpio2a_iomux, + GRF_GPIO2A4_SEL_MASK, + GRF_PWM_0 << GRF_GPIO2A4_SEL_SHIFT); + break; + case PERIPH_ID_PWM1: + rk_clrsetreg(&grf->gpio2a_iomux, + GRF_GPIO2A5_SEL_MASK, + GRF_PWM_1 << GRF_GPIO2A5_SEL_SHIFT); + break; + case PERIPH_ID_PWM2: + rk_clrsetreg(&grf->gpio2a_iomux, + GRF_GPIO2A6_SEL_MASK, + GRF_PWM_2 << GRF_GPIO2A6_SEL_SHIFT); + break; + case PERIPH_ID_PWM3: + rk_clrsetreg(&grf->gpio2a_iomux, + GRF_GPIO2A2_SEL_MASK, + GRF_PWM_IR << GRF_GPIO2A2_SEL_SHIFT); + break; + default: + debug("pwm id = %d iomux error!\n", pwm_id); + break; + } +} + +static void pinctrl_rk3328_i2c_config(struct rk3328_grf_regs *grf, int i2c_id) +{ + switch (i2c_id) { + case PERIPH_ID_I2C0: + rk_clrsetreg(&grf->gpio2d_iomux, + GRF_GPIO2D0_SEL_MASK | GRF_GPIO2D1_SEL_MASK, + GRF_I2C0_SCL << GRF_GPIO2D0_SEL_SHIFT + | GRF_I2C0_SDA << GRF_GPIO2D1_SEL_SHIFT); + break; + case PERIPH_ID_I2C1: + rk_clrsetreg(&grf->gpio2a_iomux, + GRF_GPIO2A4_SEL_MASK | GRF_GPIO2A5_SEL_MASK, + GRF_I2C1_SCL << GRF_GPIO2A5_SEL_SHIFT + | GRF_I2C1_SDA << GRF_GPIO2A4_SEL_SHIFT); + break; + case PERIPH_ID_I2C2: + rk_clrsetreg(&grf->gpio2bl_iomux, + GRF_GPIO2BL5_SEL_MASK | GRF_GPIO2BL6_SEL_MASK, + GRF_I2C2_SCL << GRF_GPIO2BL6_SEL_SHIFT + | GRF_I2C2_SDA << GRF_GPIO2BL6_SEL_SHIFT); + break; + case PERIPH_ID_I2C3: + rk_clrsetreg(&grf->gpio0a_iomux, + GRF_GPIO0A5_SEL_MASK | GRF_GPIO0A6_SEL_MASK, + GRF_I2C3_SCL << GRF_GPIO0A5_SEL_SHIFT + | GRF_I2C3_SDA << GRF_GPIO0A6_SEL_SHIFT); + break; + default: + debug("i2c id = %d iomux error!\n", i2c_id); + break; + } +} + +static void pinctrl_rk3328_lcdc_config(struct rk3328_grf_regs *grf, int lcd_id) +{ + switch (lcd_id) { + case PERIPH_ID_LCDC0: + break; + default: + debug("lcdc id = %d iomux error!\n", lcd_id); + break; + } +} + +static int pinctrl_rk3328_spi_config(struct rk3328_grf_regs *grf, + enum periph_id spi_id, int cs) +{ + rk_clrsetreg(&grf->com_iomux, + GRF_SPI_IOMUX_SEL_MASK, + GRF_SPI_IOMUX_SEL_M0 << GRF_SPI_IOMUX_SEL_SHIFT); + + switch (spi_id) { + case PERIPH_ID_SPI0: + switch (cs) { + case 0: + rk_clrsetreg(&grf->gpio2bl_iomux, + GRF_GPIO2BL3_SEL_MASK, + GRF_SPI_CSN0_M0 << GRF_GPIO2BL3_SEL_SHIFT); + break; + case 1: + rk_clrsetreg(&grf->gpio2bl_iomux, + GRF_GPIO2BL4_SEL_MASK, + GRF_SPI_CSN1_M0 << GRF_GPIO2BL4_SEL_SHIFT); + break; + default: + goto err; + } + rk_clrsetreg(&grf->gpio2bl_iomux, + GRF_GPIO2BL0_SEL_MASK, + GRF_SPI_CLK_TX_RX_M0 << GRF_GPIO2BL0_SEL_SHIFT); + break; + default: + goto err; + } + + return 0; +err: + debug("rkspi: periph%d cs=%d not supported", spi_id, cs); + return -ENOENT; +} + +static void pinctrl_rk3328_uart_config(struct rk3328_grf_regs *grf, int uart_id) +{ + switch (uart_id) { + case PERIPH_ID_UART2: + break; + /* uart2 iomux select m1 */ + rk_clrsetreg(&grf->com_iomux, + GRF_UART2_IOMUX_SEL_MASK, + GRF_UART2_IOMUX_SEL_M1 + << GRF_UART2_IOMUX_SEL_SHIFT); + rk_clrsetreg(&grf->gpio2a_iomux, + GRF_GPIO2A0_SEL_MASK | GRF_GPIO2A1_SEL_MASK, + GRF_UART2_TX_M1 << GRF_GPIO2A0_SEL_SHIFT | + GRF_UART2_RX_M1 << GRF_GPIO2A1_SEL_SHIFT); + break; + case PERIPH_ID_UART0: + case PERIPH_ID_UART1: + case PERIPH_ID_UART3: + case PERIPH_ID_UART4: + default: + debug("uart id = %d iomux error!\n", uart_id); + break; + } +} + +static void pinctrl_rk3328_sdmmc_config(struct rk3328_grf_regs *grf, + int mmc_id) +{ + switch (mmc_id) { + case PERIPH_ID_EMMC: + rk_clrsetreg(&grf->gpio0a_iomux, + GRF_GPIO0A7_SEL_MASK, + GRF_EMMC_DATA0 << GRF_GPIO0A7_SEL_SHIFT); + rk_clrsetreg(&grf->gpio2d_iomux, + GRF_GPIO2D4_SEL_MASK, + GRF_EMMC_DATA123 << GRF_GPIO2D4_SEL_SHIFT); + rk_clrsetreg(&grf->gpio3c_iomux, + GRF_GPIO3C0_SEL_MASK, + GRF_EMMC_DATA567_PWR_CLK_RSTN_CMD + << GRF_GPIO3C0_SEL_SHIFT); + break; + case PERIPH_ID_SDCARD: + /* sdcard iomux select m0 */ + rk_clrsetreg(&grf->com_iomux, + GRF_CARD_IOMUX_SEL_MASK, + GRF_CARD_IOMUX_SEL_M0 << GRF_CARD_IOMUX_SEL_SHIFT); + rk_clrsetreg(&grf->gpio2a_iomux, + GRF_GPIO2A7_SEL_MASK, + GRF_CARD_PWR_EN_M0 << GRF_GPIO2A7_SEL_SHIFT); + rk_clrsetreg(&grf->gpio1a_iomux, + GRF_GPIO1A0_SEL_MASK, + GRF_CARD_DATA_CLK_CMD_DETN + << GRF_GPIO1A0_SEL_SHIFT); + break; + default: + debug("mmc id = %d iomux error!\n", mmc_id); + break; + } +} + +static int rk3328_pinctrl_request(struct udevice *dev, int func, int flags) +{ + struct rk3328_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_rk3328_pwm_config(priv->grf, func); + break; + case PERIPH_ID_I2C0: + case PERIPH_ID_I2C1: + case PERIPH_ID_I2C2: + case PERIPH_ID_I2C3: + pinctrl_rk3328_i2c_config(priv->grf, func); + break; + case PERIPH_ID_SPI0: + pinctrl_rk3328_spi_config(priv->grf, func, flags); + break; + case PERIPH_ID_UART0: + case PERIPH_ID_UART1: + case PERIPH_ID_UART2: + case PERIPH_ID_UART3: + case PERIPH_ID_UART4: + pinctrl_rk3328_uart_config(priv->grf, func); + break; + case PERIPH_ID_LCDC0: + case PERIPH_ID_LCDC1: + pinctrl_rk3328_lcdc_config(priv->grf, func); + break; + case PERIPH_ID_SDMMC0: + case PERIPH_ID_SDMMC1: + pinctrl_rk3328_sdmmc_config(priv->grf, func); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int rk3328_pinctrl_get_periph_id(struct udevice *dev, + struct udevice *periph) +{ + u32 cell[3]; + int ret; + + ret = fdtdec_get_int_array(gd->fdt_blob, periph->of_offset, + "interrupts", cell, ARRAY_SIZE(cell)); + if (ret < 0) + return -EINVAL; + + switch (cell[1]) { + case 49: + return PERIPH_ID_SPI0; + case 50: + return PERIPH_ID_PWM0; + case 36: + return PERIPH_ID_I2C0; + case 37: /* Note strange order */ + return PERIPH_ID_I2C1; + case 38: + return PERIPH_ID_I2C2; + case 39: + return PERIPH_ID_I2C3; + case 12: + return PERIPH_ID_SDCARD; + case 14: + return PERIPH_ID_EMMC; + } + + return -ENOENT; +} + +static int rk3328_pinctrl_set_state_simple(struct udevice *dev, + struct udevice *periph) +{ + int func; + + func = rk3328_pinctrl_get_periph_id(dev, periph); + if (func < 0) + return func; + + return rk3328_pinctrl_request(dev, func, 0); +} + +static struct pinctrl_ops rk3328_pinctrl_ops = { + .set_state_simple = rk3328_pinctrl_set_state_simple, + .request = rk3328_pinctrl_request, + .get_periph_id = rk3328_pinctrl_get_periph_id, +}; + +static int rk3328_pinctrl_probe(struct udevice *dev) +{ + struct rk3328_pinctrl_priv *priv = dev_get_priv(dev); + int ret = 0; + + priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); + debug("%s: grf=%p\n", __func__, priv->grf); + + return ret; +} + +static const struct udevice_id rk3328_pinctrl_ids[] = { + { .compatible = "rockchip,rk3328-pinctrl" }, + { } +}; + +U_BOOT_DRIVER(pinctrl_rk3328) = { + .name = "rockchip_rk3328_pinctrl", + .id = UCLASS_PINCTRL, + .of_match = rk3328_pinctrl_ids, + .priv_auto_alloc_size = sizeof(struct rk3328_pinctrl_priv), + .ops = &rk3328_pinctrl_ops, + .bind = dm_scan_fdt_dev, + .probe = rk3328_pinctrl_probe, +}; |