pinctrl: add i.MXRT driver

Add i.MXRT pinctrl driver.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>

diff --git a/drivers/pinctrl/nxp/Kconfig b/drivers/pinctrl/nxp/Kconfig
index f2e67ca2319b2d837595271c2aa8eabd9fccf6f7..ec55351e61ec780ab89285460d528269f7278fef 100644 (file)
--- a/drivers/pinctrl/nxp/Kconfig
+++ b/drivers/pinctrl/nxp/Kconfig
@@ -99,6 +99,20 @@ config PINCTRL_MXS
          familiy, e.g. i.MX28. This feature depends on device tree
          configuration.
 
+config PINCTRL_IMXRT
+       bool "IMXRT pinctrl driver"
+       depends on ARCH_IMXRT && PINCTRL_FULL
+       select DEVRES
+       select PINCTRL_IMX
+       help
+         Say Y here to enable the imxrt pinctrl driver
+
+         This provides a simple pinctrl driver for i.MXRT SoC familiy.
+         This feature depends on device tree configuration. This driver
+         is different from the linux one, this is a simple implementation,
+         only parses the 'fsl,pins' property and configure related
+         registers.
+
 config PINCTRL_VYBRID
        bool "Vybrid (vf610) pinctrl driver"
        depends on ARCH_VF610 && PINCTRL_FULL

diff --git a/drivers/pinctrl/nxp/Makefile b/drivers/pinctrl/nxp/Makefile
index b86448aac9a57bda6f27c70dd0f26db25eeb54f0..066ca75b65f1237357eeecacaaa8358e595aa31b 100644 (file)
--- a/drivers/pinctrl/nxp/Makefile
+++ b/drivers/pinctrl/nxp/Makefile
@@ -8,3 +8,4 @@ obj-$(CONFIG_PINCTRL_IMX8)              += pinctrl-imx8.o
 obj-$(CONFIG_PINCTRL_IMX8M)            += pinctrl-imx8m.o
 obj-$(CONFIG_PINCTRL_MXS)              += pinctrl-mxs.o
 obj-$(CONFIG_PINCTRL_VYBRID)           += pinctrl-vf610.o
+obj-$(CONFIG_PINCTRL_IMXRT)            += pinctrl-imxrt.o

diff --git a/drivers/pinctrl/nxp/pinctrl-imxrt.c b/drivers/pinctrl/nxp/pinctrl-imxrt.c
new file mode 100644 (file)
index 0000000..4a93941
--- /dev/null
+++ b/drivers/pinctrl/nxp/pinctrl-imxrt.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019
+ * Author(s): Giulio Benetti <giulio.benetti@benettiengineering.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/pinctrl.h>
+
+#include "pinctrl-imx.h"
+
+static struct imx_pinctrl_soc_info imxrt_pinctrl_soc_info = {
+       .flags = ZERO_OFFSET_VALID,
+};
+
+static int imxrt_pinctrl_probe(struct udevice *dev)
+{
+       struct imx_pinctrl_soc_info *info =
+               (struct imx_pinctrl_soc_info *)dev_get_driver_data(dev);
+
+       return imx_pinctrl_probe(dev, info);
+}
+
+static const struct udevice_id imxrt_pinctrl_match[] = {
+       { .compatible = "fsl,imxrt-iomuxc",
+         .data = (ulong)&imxrt_pinctrl_soc_info },
+       { /* sentinel */ }
+};
+
+U_BOOT_DRIVER(imxrt_pinctrl) = {
+       .name = "imxrt-pinctrl",
+       .id = UCLASS_PINCTRL,
+       .of_match = of_match_ptr(imxrt_pinctrl_match),
+       .probe = imxrt_pinctrl_probe,
+       .remove = imx_pinctrl_remove,
+       .priv_auto_alloc_size = sizeof(struct imx_pinctrl_priv),
+       .ops = &imx_pinctrl_ops,
+       .flags = DM_FLAG_PRE_RELOC,
+};