u-boot/drivers/pinctrl/nxp/pinctrl-imx8.c
Peng Fan 38b6686f05 pinctrl: Add pinctrl driver for i.MX8
Add pinctrl driver for i.MX8. The pads configuration is controlled
by SCU, so need to ask SCU to configure pads through scfw API.
Add pinctrl-scu to invoke sc_pad_set to configure pads.
Add a new flag IMX8_USE_SCU to differentiate i.MX8 from other platforms
which could directly configure pads from Acore side.
Add CONFIG_PINCTRL_IMX8 as the built gate.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
2018-10-22 12:59:01 +02:00

40 lines
931 B
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2018 NXP
*/
#include <common.h>
#include <dm/device.h>
#include <dm/pinctrl.h>
#include "pinctrl-imx.h"
DECLARE_GLOBAL_DATA_PTR;
static struct imx_pinctrl_soc_info imx8_pinctrl_soc_info = {
.flags = IMX8_USE_SCU,
};
static int imx8_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 imx8_pinctrl_match[] = {
{ .compatible = "fsl,imx8qxp-iomuxc", .data = (ulong)&imx8_pinctrl_soc_info },
{ /* sentinel */ }
};
U_BOOT_DRIVER(imx8_pinctrl) = {
.name = "imx8_pinctrl",
.id = UCLASS_PINCTRL,
.of_match = of_match_ptr(imx8_pinctrl_match),
.probe = imx8_pinctrl_probe,
.remove = imx_pinctrl_remove,
.priv_auto_alloc_size = sizeof(struct imx_pinctrl_priv),
.ops = &imx_pinctrl_ops,
.flags = DM_FLAG_PRE_RELOC,
};