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Diffstat (limited to '')
| -rw-r--r-- | drivers/pinctrl/freescale/pinctrl-imx8ulp.c | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/drivers/pinctrl/freescale/pinctrl-imx8ulp.c b/drivers/pinctrl/freescale/pinctrl-imx8ulp.c new file mode 100644 index 000000000..f8572597a --- /dev/null +++ b/drivers/pinctrl/freescale/pinctrl-imx8ulp.c @@ -0,0 +1,278 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2021 NXP + */ + +#include <linux/err.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/pinctrl/pinctrl.h> + +#include "pinctrl-imx.h" + +enum imx8ulp_pads { + IMX8ULP_PAD_PTD0 = 0, + IMX8ULP_PAD_PTD1, + IMX8ULP_PAD_PTD2, + IMX8ULP_PAD_PTD3, + IMX8ULP_PAD_PTD4, + IMX8ULP_PAD_PTD5, + IMX8ULP_PAD_PTD6, + IMX8ULP_PAD_PTD7, + IMX8ULP_PAD_PTD8, + IMX8ULP_PAD_PTD9, + IMX8ULP_PAD_PTD10, + IMX8ULP_PAD_PTD11, + IMX8ULP_PAD_PTD12, + IMX8ULP_PAD_PTD13, + IMX8ULP_PAD_PTD14, + IMX8ULP_PAD_PTD15, + IMX8ULP_PAD_PTD16, + IMX8ULP_PAD_PTD17, + IMX8ULP_PAD_PTD18, + IMX8ULP_PAD_PTD19, + IMX8ULP_PAD_PTD20, + IMX8ULP_PAD_PTD21, + IMX8ULP_PAD_PTD22, + IMX8ULP_PAD_PTD23, + IMX8ULP_PAD_RESERVE0, + IMX8ULP_PAD_RESERVE1, + IMX8ULP_PAD_RESERVE2, + IMX8ULP_PAD_RESERVE3, + IMX8ULP_PAD_RESERVE4, + IMX8ULP_PAD_RESERVE5, + IMX8ULP_PAD_RESERVE6, + IMX8ULP_PAD_RESERVE7, + IMX8ULP_PAD_PTE0, + IMX8ULP_PAD_PTE1, + IMX8ULP_PAD_PTE2, + IMX8ULP_PAD_PTE3, + IMX8ULP_PAD_PTE4, + IMX8ULP_PAD_PTE5, + IMX8ULP_PAD_PTE6, + IMX8ULP_PAD_PTE7, + IMX8ULP_PAD_PTE8, + IMX8ULP_PAD_PTE9, + IMX8ULP_PAD_PTE10, + IMX8ULP_PAD_PTE11, + IMX8ULP_PAD_PTE12, + IMX8ULP_PAD_PTE13, + IMX8ULP_PAD_PTE14, + IMX8ULP_PAD_PTE15, + IMX8ULP_PAD_PTE16, + IMX8ULP_PAD_PTE17, + IMX8ULP_PAD_PTE18, + IMX8ULP_PAD_PTE19, + IMX8ULP_PAD_PTE20, + IMX8ULP_PAD_PTE21, + IMX8ULP_PAD_PTE22, + IMX8ULP_PAD_PTE23, + IMX8ULP_PAD_RESERVE8, + IMX8ULP_PAD_RESERVE9, + IMX8ULP_PAD_RESERVE10, + IMX8ULP_PAD_RESERVE11, + IMX8ULP_PAD_RESERVE12, + IMX8ULP_PAD_RESERVE13, + IMX8ULP_PAD_RESERVE14, + IMX8ULP_PAD_RESERVE15, + IMX8ULP_PAD_PTF0, + IMX8ULP_PAD_PTF1, + IMX8ULP_PAD_PTF2, + IMX8ULP_PAD_PTF3, + IMX8ULP_PAD_PTF4, + IMX8ULP_PAD_PTF5, + IMX8ULP_PAD_PTF6, + IMX8ULP_PAD_PTF7, + IMX8ULP_PAD_PTF8, + IMX8ULP_PAD_PTF9, + IMX8ULP_PAD_PTF10, + IMX8ULP_PAD_PTF11, + IMX8ULP_PAD_PTF12, + IMX8ULP_PAD_PTF13, + IMX8ULP_PAD_PTF14, + IMX8ULP_PAD_PTF15, + IMX8ULP_PAD_PTF16, + IMX8ULP_PAD_PTF17, + IMX8ULP_PAD_PTF18, + IMX8ULP_PAD_PTF19, + IMX8ULP_PAD_PTF20, + IMX8ULP_PAD_PTF21, + IMX8ULP_PAD_PTF22, + IMX8ULP_PAD_PTF23, + IMX8ULP_PAD_PTF24, + IMX8ULP_PAD_PTF25, + IMX8ULP_PAD_PTF26, + IMX8ULP_PAD_PTF27, + IMX8ULP_PAD_PTF28, + IMX8ULP_PAD_PTF29, + IMX8ULP_PAD_PTF30, + IMX8ULP_PAD_PTF31, +}; + +/* Pad names for the pinmux subsystem */ +static const struct pinctrl_pin_desc imx8ulp_pinctrl_pads[] = { + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD0), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD1), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD2), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD3), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD4), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD5), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD6), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD7), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD8), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD9), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD10), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD11), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD12), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD13), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD14), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD15), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD16), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD17), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD18), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD19), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD20), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD21), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD22), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTD23), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE0), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE1), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE2), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE3), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE4), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE5), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE6), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE7), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE0), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE1), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE2), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE3), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE4), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE5), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE6), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE7), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE8), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE9), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE10), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE11), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE12), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE13), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE14), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE15), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE16), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE17), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE18), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE19), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE20), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE21), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE22), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTE23), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE8), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE9), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE10), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE11), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE12), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE13), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE14), + IMX_PINCTRL_PIN(IMX8ULP_PAD_RESERVE15), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF0), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF1), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF2), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF3), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF4), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF5), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF6), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF7), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF8), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF9), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF10), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF11), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF12), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF13), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF14), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF15), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF16), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF17), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF18), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF19), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF20), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF21), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF22), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF23), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF24), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF25), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF26), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF27), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF28), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF29), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF30), + IMX_PINCTRL_PIN(IMX8ULP_PAD_PTF31), +}; + +#define BM_OBE_ENABLED BIT(17) +#define BM_IBE_ENABLED BIT(16) +#define BM_MUX_MODE 0xf00 +#define BP_MUX_MODE 8 + +static int imx8ulp_pmx_gpio_set_direction(struct pinctrl_dev *pctldev, + struct pinctrl_gpio_range *range, + unsigned offset, bool input) +{ + struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); + const struct imx_pin_reg *pin_reg; + u32 reg; + + pin_reg = &ipctl->pin_regs[offset]; + if (pin_reg->mux_reg == -1) + return -EINVAL; + + reg = readl(ipctl->base + pin_reg->mux_reg); + if (input) + reg = (reg & ~BM_OBE_ENABLED) | BM_IBE_ENABLED; + else + reg = (reg & ~BM_IBE_ENABLED) | BM_OBE_ENABLED; + writel(reg, ipctl->base + pin_reg->mux_reg); + + return 0; +} + +static const struct imx_pinctrl_soc_info imx8ulp_pinctrl_info = { + .pins = imx8ulp_pinctrl_pads, + .npins = ARRAY_SIZE(imx8ulp_pinctrl_pads), + .flags = ZERO_OFFSET_VALID | SHARE_MUX_CONF_REG, + .gpio_set_direction = imx8ulp_pmx_gpio_set_direction, + .mux_mask = BM_MUX_MODE, + .mux_shift = BP_MUX_MODE, +}; + +static const struct of_device_id imx8ulp_pinctrl_of_match[] = { + { .compatible = "fsl,imx8ulp-iomuxc1", }, + { /* sentinel */ } +}; + +static int imx8ulp_pinctrl_probe(struct platform_device *pdev) +{ + return imx_pinctrl_probe(pdev, &imx8ulp_pinctrl_info); +} + +static struct platform_driver imx8ulp_pinctrl_driver = { + .driver = { + .name = "imx8ulp-pinctrl", + .of_match_table = imx8ulp_pinctrl_of_match, + .suppress_bind_attrs = true, + }, + .probe = imx8ulp_pinctrl_probe, +}; + +static int __init imx8ulp_pinctrl_init(void) +{ + return platform_driver_register(&imx8ulp_pinctrl_driver); +} +arch_initcall(imx8ulp_pinctrl_init); + +MODULE_AUTHOR("Jacky Bai <ping.bai@nxp.com>"); +MODULE_DESCRIPTION("NXP i.MX8ULP pinctrl driver"); +MODULE_LICENSE("GPL v2"); |