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path: root/drivers/pinctrl/freescale/pinctrl-imx7ulp.c
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Diffstat (limited to 'drivers/pinctrl/freescale/pinctrl-imx7ulp.c')
-rw-r--r--drivers/pinctrl/freescale/pinctrl-imx7ulp.c316
1 files changed, 316 insertions, 0 deletions
diff --git a/drivers/pinctrl/freescale/pinctrl-imx7ulp.c b/drivers/pinctrl/freescale/pinctrl-imx7ulp.c
new file mode 100644
index 000000000..1915378d9
--- /dev/null
+++ b/drivers/pinctrl/freescale/pinctrl-imx7ulp.c
@@ -0,0 +1,316 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2016 Freescale Semiconductor, Inc.
+// Copyright (C) 2017 NXP
+//
+// Author: Dong Aisheng <aisheng.dong@nxp.com>
+
+#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 imx7ulp_pads {
+ IMX7ULP_PAD_PTC0 = 0,
+ IMX7ULP_PAD_PTC1,
+ IMX7ULP_PAD_PTC2,
+ IMX7ULP_PAD_PTC3,
+ IMX7ULP_PAD_PTC4,
+ IMX7ULP_PAD_PTC5,
+ IMX7ULP_PAD_PTC6,
+ IMX7ULP_PAD_PTC7,
+ IMX7ULP_PAD_PTC8,
+ IMX7ULP_PAD_PTC9,
+ IMX7ULP_PAD_PTC10,
+ IMX7ULP_PAD_PTC11,
+ IMX7ULP_PAD_PTC12,
+ IMX7ULP_PAD_PTC13,
+ IMX7ULP_PAD_PTC14,
+ IMX7ULP_PAD_PTC15,
+ IMX7ULP_PAD_PTC16,
+ IMX7ULP_PAD_PTC17,
+ IMX7ULP_PAD_PTC18,
+ IMX7ULP_PAD_PTC19,
+ IMX7ULP_PAD_RESERVE0,
+ IMX7ULP_PAD_RESERVE1,
+ IMX7ULP_PAD_RESERVE2,
+ IMX7ULP_PAD_RESERVE3,
+ IMX7ULP_PAD_RESERVE4,
+ IMX7ULP_PAD_RESERVE5,
+ IMX7ULP_PAD_RESERVE6,
+ IMX7ULP_PAD_RESERVE7,
+ IMX7ULP_PAD_RESERVE8,
+ IMX7ULP_PAD_RESERVE9,
+ IMX7ULP_PAD_RESERVE10,
+ IMX7ULP_PAD_RESERVE11,
+ IMX7ULP_PAD_PTD0,
+ IMX7ULP_PAD_PTD1,
+ IMX7ULP_PAD_PTD2,
+ IMX7ULP_PAD_PTD3,
+ IMX7ULP_PAD_PTD4,
+ IMX7ULP_PAD_PTD5,
+ IMX7ULP_PAD_PTD6,
+ IMX7ULP_PAD_PTD7,
+ IMX7ULP_PAD_PTD8,
+ IMX7ULP_PAD_PTD9,
+ IMX7ULP_PAD_PTD10,
+ IMX7ULP_PAD_PTD11,
+ IMX7ULP_PAD_RESERVE12,
+ IMX7ULP_PAD_RESERVE13,
+ IMX7ULP_PAD_RESERVE14,
+ IMX7ULP_PAD_RESERVE15,
+ IMX7ULP_PAD_RESERVE16,
+ IMX7ULP_PAD_RESERVE17,
+ IMX7ULP_PAD_RESERVE18,
+ IMX7ULP_PAD_RESERVE19,
+ IMX7ULP_PAD_RESERVE20,
+ IMX7ULP_PAD_RESERVE21,
+ IMX7ULP_PAD_RESERVE22,
+ IMX7ULP_PAD_RESERVE23,
+ IMX7ULP_PAD_RESERVE24,
+ IMX7ULP_PAD_RESERVE25,
+ IMX7ULP_PAD_RESERVE26,
+ IMX7ULP_PAD_RESERVE27,
+ IMX7ULP_PAD_RESERVE28,
+ IMX7ULP_PAD_RESERVE29,
+ IMX7ULP_PAD_RESERVE30,
+ IMX7ULP_PAD_RESERVE31,
+ IMX7ULP_PAD_PTE0,
+ IMX7ULP_PAD_PTE1,
+ IMX7ULP_PAD_PTE2,
+ IMX7ULP_PAD_PTE3,
+ IMX7ULP_PAD_PTE4,
+ IMX7ULP_PAD_PTE5,
+ IMX7ULP_PAD_PTE6,
+ IMX7ULP_PAD_PTE7,
+ IMX7ULP_PAD_PTE8,
+ IMX7ULP_PAD_PTE9,
+ IMX7ULP_PAD_PTE10,
+ IMX7ULP_PAD_PTE11,
+ IMX7ULP_PAD_PTE12,
+ IMX7ULP_PAD_PTE13,
+ IMX7ULP_PAD_PTE14,
+ IMX7ULP_PAD_PTE15,
+ IMX7ULP_PAD_RESERVE32,
+ IMX7ULP_PAD_RESERVE33,
+ IMX7ULP_PAD_RESERVE34,
+ IMX7ULP_PAD_RESERVE35,
+ IMX7ULP_PAD_RESERVE36,
+ IMX7ULP_PAD_RESERVE37,
+ IMX7ULP_PAD_RESERVE38,
+ IMX7ULP_PAD_RESERVE39,
+ IMX7ULP_PAD_RESERVE40,
+ IMX7ULP_PAD_RESERVE41,
+ IMX7ULP_PAD_RESERVE42,
+ IMX7ULP_PAD_RESERVE43,
+ IMX7ULP_PAD_RESERVE44,
+ IMX7ULP_PAD_RESERVE45,
+ IMX7ULP_PAD_RESERVE46,
+ IMX7ULP_PAD_RESERVE47,
+ IMX7ULP_PAD_PTF0,
+ IMX7ULP_PAD_PTF1,
+ IMX7ULP_PAD_PTF2,
+ IMX7ULP_PAD_PTF3,
+ IMX7ULP_PAD_PTF4,
+ IMX7ULP_PAD_PTF5,
+ IMX7ULP_PAD_PTF6,
+ IMX7ULP_PAD_PTF7,
+ IMX7ULP_PAD_PTF8,
+ IMX7ULP_PAD_PTF9,
+ IMX7ULP_PAD_PTF10,
+ IMX7ULP_PAD_PTF11,
+ IMX7ULP_PAD_PTF12,
+ IMX7ULP_PAD_PTF13,
+ IMX7ULP_PAD_PTF14,
+ IMX7ULP_PAD_PTF15,
+ IMX7ULP_PAD_PTF16,
+ IMX7ULP_PAD_PTF17,
+ IMX7ULP_PAD_PTF18,
+ IMX7ULP_PAD_PTF19,
+};
+
+/* Pad names for the pinmux subsystem */
+static const struct pinctrl_pin_desc imx7ulp_pinctrl_pads[] = {
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC0),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC1),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC2),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC3),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC4),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC5),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC6),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC7),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC8),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC9),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC10),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC11),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC12),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC13),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC14),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC15),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC16),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC17),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC18),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTC19),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE0),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE1),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE2),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE3),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE4),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE5),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE6),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE7),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE8),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE9),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE10),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE11),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD0),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD1),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD2),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD3),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD4),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD5),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD6),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD7),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD8),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD9),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD10),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTD11),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE12),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE13),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE14),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE15),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE16),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE17),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE18),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE19),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE20),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE21),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE22),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE23),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE24),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE25),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE26),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE27),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE28),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE29),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE30),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE31),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE0),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE1),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE2),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE3),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE4),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE5),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE6),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE7),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE8),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE9),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE10),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE11),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE12),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE13),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE14),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTE15),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE32),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE33),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE34),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE35),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE36),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE37),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE38),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE39),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE40),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE41),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE42),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE43),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE44),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE45),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE46),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_RESERVE47),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF0),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF1),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF2),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF3),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF4),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF5),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF6),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF7),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF8),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF9),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF10),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF11),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF12),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF13),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF14),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF15),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF16),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF17),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF18),
+ IMX_PINCTRL_PIN(IMX7ULP_PAD_PTF19),
+};
+
+#define BM_OBE_ENABLED BIT(17)
+#define BM_IBE_ENABLED BIT(16)
+#define BM_MUX_MODE 0xf00
+#define BP_MUX_MODE 8
+
+static int imx7ulp_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 imx7ulp_pinctrl_info = {
+ .pins = imx7ulp_pinctrl_pads,
+ .npins = ARRAY_SIZE(imx7ulp_pinctrl_pads),
+ .flags = ZERO_OFFSET_VALID | SHARE_MUX_CONF_REG,
+ .gpio_set_direction = imx7ulp_pmx_gpio_set_direction,
+ .mux_mask = BM_MUX_MODE,
+ .mux_shift = BP_MUX_MODE,
+};
+
+static const struct of_device_id imx7ulp_pinctrl_of_match[] = {
+ { .compatible = "fsl,imx7ulp-iomuxc1", },
+ { /* sentinel */ }
+};
+
+static int imx7ulp_pinctrl_probe(struct platform_device *pdev)
+{
+ return imx_pinctrl_probe(pdev, &imx7ulp_pinctrl_info);
+}
+
+static struct platform_driver imx7ulp_pinctrl_driver = {
+ .driver = {
+ .name = "imx7ulp-pinctrl",
+ .of_match_table = imx7ulp_pinctrl_of_match,
+ .suppress_bind_attrs = true,
+ },
+ .probe = imx7ulp_pinctrl_probe,
+};
+
+static int __init imx7ulp_pinctrl_init(void)
+{
+ return platform_driver_register(&imx7ulp_pinctrl_driver);
+}
+arch_initcall(imx7ulp_pinctrl_init);