Introudce i.MX7 pinctrl driver support.
For now only i.MX7D supported.
There are two iomux controllers in i.MX7D, iomuxc and iomuxc_lpsr.
To iomuxc_lpsr, ZERO_OFFSET_VALID is set, means offset of mux_reg
and conf_reg can begin at 0.
Signed-off-by: Peng Fan <van.free...@gmail.com>
Reviewed-by: Simon Glass <s...@chromium.org>
---
V2:
Add more details in Kconfig entry
Add Simon's reviewed-by
drivers/pinctrl/nxp/Kconfig | 14 +++++++++++++
drivers/pinctrl/nxp/Makefile | 1 +
drivers/pinctrl/nxp/pinctrl-imx7.c | 41 ++++++++++++++++++++++++++++++++++++++
3 files changed, 56 insertions(+)
create mode 100644 drivers/pinctrl/nxp/pinctrl-imx7.c
diff --git a/drivers/pinctrl/nxp/Kconfig b/drivers/pinctrl/nxp/Kconfig
index f1c9b92..35640f0 100644
--- a/drivers/pinctrl/nxp/Kconfig
+++ b/drivers/pinctrl/nxp/Kconfig
@@ -14,3 +14,17 @@ config PINCTRL_IMX6
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_IMX7
+ bool "IMX7 pinctrl driver"
+ depends on ARCH_MX7 && PINCTRL_FULL
+ select DEVRES
+ select PINCTRL_IMX
+ help
+ Say Y here to enable the imx7 pinctrl driver
+
+ This provides a simple pinctrl driver for i.MX7 SoC familiy,
+ i.MX7D. 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.
diff --git a/drivers/pinctrl/nxp/Makefile b/drivers/pinctrl/nxp/Makefile
index 7fd9850..0ee7f2f 100644
--- a/drivers/pinctrl/nxp/Makefile
+++ b/drivers/pinctrl/nxp/Makefile
@@ -1,2 +1,3 @@
obj-$(CONFIG_PINCTRL_IMX) += pinctrl-imx.o
obj-$(CONFIG_PINCTRL_IMX6) += pinctrl-imx6.o
+obj-$(CONFIG_PINCTRL_IMX7) += pinctrl-imx7.o
diff --git a/drivers/pinctrl/nxp/pinctrl-imx7.c
b/drivers/pinctrl/nxp/pinctrl-imx7.c
new file mode 100644
index 0000000..eeb7942
--- /dev/null
+++ b/drivers/pinctrl/nxp/pinctrl-imx7.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2016 Peng Fan <van.free...@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <dm/device.h>
+#include <dm/pinctrl.h>
+
+#include "pinctrl-imx.h"
+
+static struct imx_pinctrl_soc_info imx7_pinctrl_soc_info;
+
+static struct imx_pinctrl_soc_info imx7_lpsr_pinctrl_soc_info = {
+ .flags = ZERO_OFFSET_VALID,
+};
+
+static int imx7_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 imx7_pinctrl_match[] = {
+ { .compatible = "fsl,imx7d-iomuxc", .data =
(ulong)&imx7_pinctrl_soc_info },
+ { .compatible = "fsl,imx7d-iomuxc-lpsr", .data =
(ulong)&imx7_lpsr_pinctrl_soc_info },
+ { /* sentinel */ }
+};
+
+U_BOOT_DRIVER(imx7_pinctrl) = {
+ .name = "imx7-pinctrl",
+ .id = UCLASS_PINCTRL,
+ .of_match = of_match_ptr(imx7_pinctrl_match),
+ .probe = imx7_pinctrl_probe,
+ .remove = imx_pinctrl_remove,
+ .priv_auto_alloc_size = sizeof(struct imx_pinctrl_priv),
+ .ops = &imx_pinctrl_ops,
+ .flags = DM_FLAG_PRE_RELOC,
+};
--
2.6.2
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