From 38b6686f05d4609334b5796bc352ec01d54c5eb4 Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Thu, 18 Oct 2018 14:28:28 +0200 Subject: 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 Reviewed-by: Anatolij Gustschin Cc: Stefano Babic --- drivers/pinctrl/nxp/pinctrl-imx8.c | 40 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 drivers/pinctrl/nxp/pinctrl-imx8.c (limited to 'drivers/pinctrl/nxp/pinctrl-imx8.c') diff --git a/drivers/pinctrl/nxp/pinctrl-imx8.c b/drivers/pinctrl/nxp/pinctrl-imx8.c new file mode 100644 index 0000000000..0738da0ebe --- /dev/null +++ b/drivers/pinctrl/nxp/pinctrl-imx8.c @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2018 NXP + */ + +#include +#include +#include + +#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, +}; -- cgit