mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-08-16 04:07:00 +02:00
90890e9086
The only user of the SCU pinctrl code is pinctrl-imx8.c , fold the entire pinctrl-scu.c code into pinctrl-imx8.c and remove the matching Kconfig symbols and Makefile entries. No functional change. Signed-off-by: Marek Vasut <marex@denx.de>
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright 2018 NXP
|
|
*/
|
|
|
|
#include <dm.h>
|
|
#include <errno.h>
|
|
#include <linux/bitops.h>
|
|
#include <asm/io.h>
|
|
#include <firmware/imx/sci/sci.h>
|
|
#include <misc.h>
|
|
#include <asm/global_data.h>
|
|
#include <dm/device.h>
|
|
#include <dm/pinctrl.h>
|
|
|
|
#include "pinctrl-imx.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define PADRING_IFMUX_EN_SHIFT 31
|
|
#define PADRING_IFMUX_EN_MASK BIT(31)
|
|
#define PADRING_GP_EN_SHIFT 30
|
|
#define PADRING_GP_EN_MASK BIT(30)
|
|
#define PADRING_IFMUX_SHIFT 27
|
|
#define PADRING_IFMUX_MASK GENMASK(29, 27)
|
|
|
|
static int imx_pinconf_scu_set(struct imx_pinctrl_soc_info *info, u32 pad,
|
|
u32 mux, u32 val)
|
|
{
|
|
int ret;
|
|
|
|
/*
|
|
* Mux should be done in pmx set, but we do not have a good api
|
|
* to handle that in scfw, so config it in pad conf func
|
|
*/
|
|
|
|
if (!sc_rm_is_pad_owned(-1, pad)) {
|
|
debug("Pad[%u] is not owned by curr partition\n", pad);
|
|
return -EPERM;
|
|
}
|
|
|
|
val |= PADRING_IFMUX_EN_MASK;
|
|
val |= PADRING_GP_EN_MASK;
|
|
val |= (mux << PADRING_IFMUX_SHIFT) & PADRING_IFMUX_MASK;
|
|
|
|
ret = sc_pad_set(-1, pad, val);
|
|
if (ret)
|
|
printf("%s %d\n", __func__, ret);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int imx_pinctrl_set_state_scu(struct udevice *dev, struct udevice *config)
|
|
{
|
|
struct imx_pinctrl_priv *priv = dev_get_priv(dev);
|
|
struct imx_pinctrl_soc_info *info = priv->info;
|
|
int pin_id, mux, config_val;
|
|
u32 *pin_data;
|
|
int i, j = 0;
|
|
int npins;
|
|
int ret;
|
|
|
|
ret = imx_pinctrl_set_state_common(dev, config, SHARE_IMX8_PIN_SIZE,
|
|
&pin_data, &npins);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/*
|
|
* Refer to linux documentation for details:
|
|
* Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
|
|
*/
|
|
for (i = 0; i < npins; i++) {
|
|
pin_id = pin_data[j++];
|
|
mux = pin_data[j++];
|
|
config_val = pin_data[j++];
|
|
|
|
ret = imx_pinconf_scu_set(info, pin_id, mux, config_val);
|
|
if (ret && ret != -EPERM)
|
|
printf("Set pin %d, mux %d, val %d, error\n", pin_id,
|
|
mux, config_val);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
static struct imx_pinctrl_soc_info imx8_pinctrl_soc_info = {
|
|
.flags = IMX8_USE_SCU,
|
|
};
|
|
|
|
static const struct udevice_id imx8_pinctrl_match[] = {
|
|
{ .compatible = "fsl,imx8qxp-iomuxc", .data = (ulong)&imx8_pinctrl_soc_info },
|
|
{ .compatible = "fsl,imx8qm-iomuxc", .data = (ulong)&imx8_pinctrl_soc_info },
|
|
{ /* sentinel */ }
|
|
};
|
|
|
|
static const struct pinctrl_ops imx8_pinctrl_ops = {
|
|
.set_state = imx_pinctrl_set_state_scu,
|
|
};
|
|
|
|
U_BOOT_DRIVER(imx8_pinctrl) = {
|
|
.name = "imx8_pinctrl",
|
|
.id = UCLASS_PINCTRL,
|
|
.of_match = of_match_ptr(imx8_pinctrl_match),
|
|
.probe = imx_pinctrl_probe_common,
|
|
.priv_auto = sizeof(struct imx_pinctrl_priv),
|
|
.ops = &imx8_pinctrl_ops,
|
|
.flags = DM_FLAG_PRE_RELOC,
|
|
};
|