[PATCH 4/5] pinctrl: imx: add imx7ulp driver
Dong Aisheng
aisheng.dong at nxp.com
Fri May 12 05:38:05 PDT 2017
i.MX 7ULP has three IOMUXC instances: IOMUXC0 for M4 ports,
IOMUXC1 for A7 ports and IOMUXC DDR for DDR interface.
This patch adds the IOMUXC1 support for A7.
It only supports generic pin config.
Cc: Linus Walleij <linus.walleij at linaro.org>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Bai Ping <ping.bai at nxp.com>
Signed-off-by: Fugang Duan <fugang.duan at nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong at nxp.com>
---
drivers/pinctrl/freescale/Kconfig | 7 +
drivers/pinctrl/freescale/Makefile | 1 +
drivers/pinctrl/freescale/pinctrl-imx7ulp.c | 358 ++++++++++++++++++++++++++++
3 files changed, 366 insertions(+)
create mode 100644 drivers/pinctrl/freescale/pinctrl-imx7ulp.c
diff --git a/drivers/pinctrl/freescale/Kconfig b/drivers/pinctrl/freescale/Kconfig
index 0b266b2..4dbc576 100644
--- a/drivers/pinctrl/freescale/Kconfig
+++ b/drivers/pinctrl/freescale/Kconfig
@@ -103,6 +103,13 @@ config PINCTRL_IMX7D
help
Say Y here to enable the imx7d pinctrl driver
+config PINCTRL_IMX7ULP
+ bool "IMX7ULP pinctrl driver"
+ depends on SOC_IMX7ULP
+ select PINCTRL_IMX
+ help
+ Say Y here to enable the imx7ulp pinctrl driver
+
config PINCTRL_VF610
bool "Freescale Vybrid VF610 pinctrl driver"
depends on SOC_VF610
diff --git a/drivers/pinctrl/freescale/Makefile b/drivers/pinctrl/freescale/Makefile
index d44c9e2..525a5ff 100644
--- a/drivers/pinctrl/freescale/Makefile
+++ b/drivers/pinctrl/freescale/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_PINCTRL_IMX6SL) += pinctrl-imx6sl.o
obj-$(CONFIG_PINCTRL_IMX6SX) += pinctrl-imx6sx.o
obj-$(CONFIG_PINCTRL_IMX6UL) += pinctrl-imx6ul.o
obj-$(CONFIG_PINCTRL_IMX7D) += pinctrl-imx7d.o
+obj-$(CONFIG_PINCTRL_IMX7ULP) += pinctrl-imx7ulp.o
obj-$(CONFIG_PINCTRL_VF610) += pinctrl-vf610.o
obj-$(CONFIG_PINCTRL_MXS) += pinctrl-mxs.o
obj-$(CONFIG_PINCTRL_IMX23) += pinctrl-imx23.o
diff --git a/drivers/pinctrl/freescale/pinctrl-imx7ulp.c b/drivers/pinctrl/freescale/pinctrl-imx7ulp.c
new file mode 100644
index 0000000..dead416
--- /dev/null
+++ b/drivers/pinctrl/freescale/pinctrl-imx7ulp.c
@@ -0,0 +1,358 @@
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright (C) 2017 NXP
+ *
+ * Author: Dong Aisheng <aisheng.dong at nxp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#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 {
+ ULP1_PAD_PTC0 = 0,
+ ULP1_PAD_PTC1,
+ ULP1_PAD_PTC2,
+ ULP1_PAD_PTC3,
+ ULP1_PAD_PTC4,
+ ULP1_PAD_PTC5,
+ ULP1_PAD_PTC6,
+ ULP1_PAD_PTC7,
+ ULP1_PAD_PTC8,
+ ULP1_PAD_PTC9,
+ ULP1_PAD_PTC10,
+ ULP1_PAD_PTC11,
+ ULP1_PAD_PTC12,
+ ULP1_PAD_PTC13,
+ ULP1_PAD_PTC14,
+ ULP1_PAD_PTC15,
+ ULP1_PAD_PTC16,
+ ULP1_PAD_PTC17,
+ ULP1_PAD_PTC18,
+ ULP1_PAD_PTC19,
+ ULP1_PAD_RESERVE0,
+ ULP1_PAD_RESERVE1,
+ ULP1_PAD_RESERVE2,
+ ULP1_PAD_RESERVE3,
+ ULP1_PAD_RESERVE4,
+ ULP1_PAD_RESERVE5,
+ ULP1_PAD_RESERVE6,
+ ULP1_PAD_RESERVE7,
+ ULP1_PAD_RESERVE8,
+ ULP1_PAD_RESERVE9,
+ ULP1_PAD_RESERVE10,
+ ULP1_PAD_RESERVE11,
+ ULP1_PAD_PTD0,
+ ULP1_PAD_PTD1,
+ ULP1_PAD_PTD2,
+ ULP1_PAD_PTD3,
+ ULP1_PAD_PTD4,
+ ULP1_PAD_PTD5,
+ ULP1_PAD_PTD6,
+ ULP1_PAD_PTD7,
+ ULP1_PAD_PTD8,
+ ULP1_PAD_PTD9,
+ ULP1_PAD_PTD10,
+ ULP1_PAD_PTD11,
+ ULP1_PAD_RESERVE12,
+ ULP1_PAD_RESERVE13,
+ ULP1_PAD_RESERVE14,
+ ULP1_PAD_RESERVE15,
+ ULP1_PAD_RESERVE16,
+ ULP1_PAD_RESERVE17,
+ ULP1_PAD_RESERVE18,
+ ULP1_PAD_RESERVE19,
+ ULP1_PAD_RESERVE20,
+ ULP1_PAD_RESERVE21,
+ ULP1_PAD_RESERVE22,
+ ULP1_PAD_RESERVE23,
+ ULP1_PAD_RESERVE24,
+ ULP1_PAD_RESERVE25,
+ ULP1_PAD_RESERVE26,
+ ULP1_PAD_RESERVE27,
+ ULP1_PAD_RESERVE28,
+ ULP1_PAD_RESERVE29,
+ ULP1_PAD_RESERVE30,
+ ULP1_PAD_RESERVE31,
+ ULP1_PAD_PTE0,
+ ULP1_PAD_PTE1,
+ ULP1_PAD_PTE2,
+ ULP1_PAD_PTE3,
+ ULP1_PAD_PTE4,
+ ULP1_PAD_PTE5,
+ ULP1_PAD_PTE6,
+ ULP1_PAD_PTE7,
+ ULP1_PAD_PTE8,
+ ULP1_PAD_PTE9,
+ ULP1_PAD_PTE10,
+ ULP1_PAD_PTE11,
+ ULP1_PAD_PTE12,
+ ULP1_PAD_PTE13,
+ ULP1_PAD_PTE14,
+ ULP1_PAD_PTE15,
+ ULP1_PAD_RESERVE32,
+ ULP1_PAD_RESERVE33,
+ ULP1_PAD_RESERVE34,
+ ULP1_PAD_RESERVE35,
+ ULP1_PAD_RESERVE36,
+ ULP1_PAD_RESERVE37,
+ ULP1_PAD_RESERVE38,
+ ULP1_PAD_RESERVE39,
+ ULP1_PAD_RESERVE40,
+ ULP1_PAD_RESERVE41,
+ ULP1_PAD_RESERVE42,
+ ULP1_PAD_RESERVE43,
+ ULP1_PAD_RESERVE44,
+ ULP1_PAD_RESERVE45,
+ ULP1_PAD_RESERVE46,
+ ULP1_PAD_RESERVE47,
+ ULP1_PAD_PTF0,
+ ULP1_PAD_PTF1,
+ ULP1_PAD_PTF2,
+ ULP1_PAD_PTF3,
+ ULP1_PAD_PTF4,
+ ULP1_PAD_PTF5,
+ ULP1_PAD_PTF6,
+ ULP1_PAD_PTF7,
+ ULP1_PAD_PTF8,
+ ULP1_PAD_PTF9,
+ ULP1_PAD_PTF10,
+ ULP1_PAD_PTF11,
+ ULP1_PAD_PTF12,
+ ULP1_PAD_PTF13,
+ ULP1_PAD_PTF14,
+ ULP1_PAD_PTF15,
+ ULP1_PAD_PTF16,
+ ULP1_PAD_PTF17,
+ ULP1_PAD_PTF18,
+ ULP1_PAD_PTF19,
+};
+
+/* Pad names for the pinmux subsystem */
+static const struct pinctrl_pin_desc imx7ulp_pinctrl_pads[] = {
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC0),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC1),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC2),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC3),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC4),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC5),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC6),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC7),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC8),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC9),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC10),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC11),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC12),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC13),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC14),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC15),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC16),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC17),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC18),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTC19),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE0),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE1),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE2),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE3),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE4),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE5),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE6),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE7),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE8),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE9),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE10),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE11),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTD0),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTD1),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTD2),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTD3),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTD4),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTD5),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTD6),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTD7),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTD8),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTD9),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTD10),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTD11),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE12),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE13),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE14),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE15),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE16),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE17),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE18),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE19),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE20),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE21),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE22),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE23),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE24),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE25),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE26),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE27),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE28),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE29),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE30),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE31),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE0),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE1),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE2),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE3),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE4),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE5),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE6),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE7),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE8),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE9),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE10),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE11),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE12),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE13),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE14),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTE15),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE32),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE33),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE34),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE35),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE36),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE37),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE38),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE39),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE40),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE41),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE42),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE43),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE44),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE45),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE46),
+ IMX_PINCTRL_PIN(ULP1_PAD_RESERVE47),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF0),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF1),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF2),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF3),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF4),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF5),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF6),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF7),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF8),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF9),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF10),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF11),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF12),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF13),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF14),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF15),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF16),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF17),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF18),
+ IMX_PINCTRL_PIN(ULP1_PAD_PTF19),
+};
+
+#define BM_LK_ENABLED BIT(15)
+#define BM_PULL_ENABLED BIT(1)
+
+enum imx7ulp_pinconf_param {
+ PIN_CONFIG_NXP_OUTPUT_BUFFER_ENABLE = PIN_CONFIG_END + 1,
+ PIN_CONFIG_NXP_INPUT_BUFFER_ENABLE,
+};
+
+static const struct pinconf_generic_params imx7ulp_cfg_params[] = {
+ {
+ .property = "nxp,output-buffer-enable",
+ .param = PIN_CONFIG_NXP_OUTPUT_BUFFER_ENABLE,
+ .default_value = 1,
+ }, {
+ .property = "nxp,input-buffer-enable",
+ .param = PIN_CONFIG_NXP_INPUT_BUFFER_ENABLE,
+ .default_value = 1,
+ },
+};
+
+struct imx_cfg_params_decode imx7ulp_cfg_decodes[] = {
+ IMX_CFG_PARAMS_DECODE(PIN_CONFIG_NXP_OUTPUT_BUFFER_ENABLE, BIT(17), 17),
+ IMX_CFG_PARAMS_DECODE(PIN_CONFIG_NXP_INPUT_BUFFER_ENABLE, BIT(16), 16),
+
+ IMX_CFG_PARAMS_DECODE(PIN_CONFIG_DRIVE_STRENGTH, BIT(6), 6),
+ IMX_CFG_PARAMS_DECODE(PIN_CONFIG_DRIVE_PUSH_PULL, BIT(5), 5),
+ IMX_CFG_PARAMS_DECODE(PIN_CONFIG_SLEW_RATE, BIT(2), 2),
+ IMX_CFG_PARAMS_DECODE(PIN_CONFIG_BIAS_DISABLE, BIT(1), 1),
+ IMX_CFG_PARAMS_DECODE(PIN_CONFIG_BIAS_PULL_UP, BIT(0), 0),
+
+ IMX_CFG_PARAMS_DECODE_INVERT(PIN_CONFIG_DRIVE_OPEN_DRAIN, BIT(5), 5),
+ IMX_CFG_PARAMS_DECODE_INVERT(PIN_CONFIG_BIAS_PULL_DOWN, BIT(0), 0),
+};
+
+static void imx7ulp_cfg_params_fixup(unsigned long *configs,
+ unsigned int num_configs,
+ u32 *raw_config)
+{
+ enum pin_config_param param;
+ u32 param_val;
+ int i;
+
+ /* lock field disabled */
+ *raw_config &= ~BM_LK_ENABLED;
+
+ for (i = 0; i < num_configs; i++) {
+ param = pinconf_to_config_param(configs[i]);
+ param_val = pinconf_to_config_argument(configs[i]);
+
+ if ((param == PIN_CONFIG_BIAS_PULL_UP) ||
+ (param == PIN_CONFIG_BIAS_PULL_DOWN)) {
+ /* pull enabled */
+ *raw_config |= BM_PULL_ENABLED;
+
+ return;
+ }
+ }
+}
+
+static 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,
+ .mux_mask = 0xf00,
+ .mux_shift = 8,
+ .generic_pinconf = true,
+ .custom_params = imx7ulp_cfg_params,
+ .num_custom_params = ARRAY_SIZE(imx7ulp_cfg_params),
+ .decodes = imx7ulp_cfg_decodes,
+ .num_decodes = ARRAY_SIZE(imx7ulp_cfg_decodes),
+ .fixup = imx7ulp_cfg_params_fixup,
+};
+
+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 = of_match_ptr(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);
--
2.7.4
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