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| author | Peng Fan <van.freenix@gmail.com> | 2016-02-03 10:06:08 +0800 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2016-02-21 11:25:29 +0100 |
| commit | c4068dfb31e16f5a27f7177a156cd7a4271ececb (patch) | |
| tree | e967ec21528759eaa6f54b137c235322b8bc8045 /drivers | |
| parent | 745df68d362346306900678178b8a7d5bbd73d0e (diff) | |
| download | u-boot-imx-c4068dfb31e16f5a27f7177a156cd7a4271ececb.zip u-boot-imx-c4068dfb31e16f5a27f7177a156cd7a4271ececb.tar.gz u-boot-imx-c4068dfb31e16f5a27f7177a156cd7a4271ececb.tar.bz2 | |
pinctrl: imx: Support i.MX7D
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.freenix@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pinctrl/nxp/Kconfig | 14 | ||||
| -rw-r--r-- | drivers/pinctrl/nxp/Makefile | 1 | ||||
| -rw-r--r-- | drivers/pinctrl/nxp/pinctrl-imx7.c | 41 |
3 files changed, 56 insertions, 0 deletions
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.freenix@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, +}; |