mirror of
https://github.com/torvalds/linux.git
synced 2024-12-05 10:32:35 +00:00
d2912cb15b
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
176 lines
4.5 KiB
C
176 lines
4.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Rockchip Generic Register Files setup
|
|
*
|
|
* Copyright (c) 2016 Heiko Stuebner <heiko@sntech.de>
|
|
*/
|
|
|
|
#include <linux/err.h>
|
|
#include <linux/mfd/syscon.h>
|
|
#include <linux/of_device.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/regmap.h>
|
|
|
|
#define HIWORD_UPDATE(val, mask, shift) \
|
|
((val) << (shift) | (mask) << ((shift) + 16))
|
|
|
|
struct rockchip_grf_value {
|
|
const char *desc;
|
|
u32 reg;
|
|
u32 val;
|
|
};
|
|
|
|
struct rockchip_grf_info {
|
|
const struct rockchip_grf_value *values;
|
|
int num_values;
|
|
};
|
|
|
|
#define RK3036_GRF_SOC_CON0 0x140
|
|
|
|
static const struct rockchip_grf_value rk3036_defaults[] __initconst = {
|
|
/*
|
|
* Disable auto jtag/sdmmc switching that causes issues with the
|
|
* clock-framework and the mmc controllers making them unreliable.
|
|
*/
|
|
{ "jtag switching", RK3036_GRF_SOC_CON0, HIWORD_UPDATE(0, 1, 11) },
|
|
};
|
|
|
|
static const struct rockchip_grf_info rk3036_grf __initconst = {
|
|
.values = rk3036_defaults,
|
|
.num_values = ARRAY_SIZE(rk3036_defaults),
|
|
};
|
|
|
|
#define RK3128_GRF_SOC_CON0 0x140
|
|
|
|
static const struct rockchip_grf_value rk3128_defaults[] __initconst = {
|
|
{ "jtag switching", RK3128_GRF_SOC_CON0, HIWORD_UPDATE(0, 1, 8) },
|
|
};
|
|
|
|
static const struct rockchip_grf_info rk3128_grf __initconst = {
|
|
.values = rk3128_defaults,
|
|
.num_values = ARRAY_SIZE(rk3128_defaults),
|
|
};
|
|
|
|
#define RK3228_GRF_SOC_CON6 0x418
|
|
|
|
static const struct rockchip_grf_value rk3228_defaults[] __initconst = {
|
|
{ "jtag switching", RK3228_GRF_SOC_CON6, HIWORD_UPDATE(0, 1, 8) },
|
|
};
|
|
|
|
static const struct rockchip_grf_info rk3228_grf __initconst = {
|
|
.values = rk3228_defaults,
|
|
.num_values = ARRAY_SIZE(rk3228_defaults),
|
|
};
|
|
|
|
#define RK3288_GRF_SOC_CON0 0x244
|
|
#define RK3288_GRF_SOC_CON2 0x24c
|
|
|
|
static const struct rockchip_grf_value rk3288_defaults[] __initconst = {
|
|
{ "jtag switching", RK3288_GRF_SOC_CON0, HIWORD_UPDATE(0, 1, 12) },
|
|
{ "pwm select", RK3288_GRF_SOC_CON2, HIWORD_UPDATE(1, 1, 0) },
|
|
};
|
|
|
|
static const struct rockchip_grf_info rk3288_grf __initconst = {
|
|
.values = rk3288_defaults,
|
|
.num_values = ARRAY_SIZE(rk3288_defaults),
|
|
};
|
|
|
|
#define RK3328_GRF_SOC_CON4 0x410
|
|
|
|
static const struct rockchip_grf_value rk3328_defaults[] __initconst = {
|
|
{ "jtag switching", RK3328_GRF_SOC_CON4, HIWORD_UPDATE(0, 1, 12) },
|
|
};
|
|
|
|
static const struct rockchip_grf_info rk3328_grf __initconst = {
|
|
.values = rk3328_defaults,
|
|
.num_values = ARRAY_SIZE(rk3328_defaults),
|
|
};
|
|
|
|
#define RK3368_GRF_SOC_CON15 0x43c
|
|
|
|
static const struct rockchip_grf_value rk3368_defaults[] __initconst = {
|
|
{ "jtag switching", RK3368_GRF_SOC_CON15, HIWORD_UPDATE(0, 1, 13) },
|
|
};
|
|
|
|
static const struct rockchip_grf_info rk3368_grf __initconst = {
|
|
.values = rk3368_defaults,
|
|
.num_values = ARRAY_SIZE(rk3368_defaults),
|
|
};
|
|
|
|
#define RK3399_GRF_SOC_CON7 0xe21c
|
|
|
|
static const struct rockchip_grf_value rk3399_defaults[] __initconst = {
|
|
{ "jtag switching", RK3399_GRF_SOC_CON7, HIWORD_UPDATE(0, 1, 12) },
|
|
};
|
|
|
|
static const struct rockchip_grf_info rk3399_grf __initconst = {
|
|
.values = rk3399_defaults,
|
|
.num_values = ARRAY_SIZE(rk3399_defaults),
|
|
};
|
|
|
|
static const struct of_device_id rockchip_grf_dt_match[] __initconst = {
|
|
{
|
|
.compatible = "rockchip,rk3036-grf",
|
|
.data = (void *)&rk3036_grf,
|
|
}, {
|
|
.compatible = "rockchip,rk3128-grf",
|
|
.data = (void *)&rk3128_grf,
|
|
}, {
|
|
.compatible = "rockchip,rk3228-grf",
|
|
.data = (void *)&rk3228_grf,
|
|
}, {
|
|
.compatible = "rockchip,rk3288-grf",
|
|
.data = (void *)&rk3288_grf,
|
|
}, {
|
|
.compatible = "rockchip,rk3328-grf",
|
|
.data = (void *)&rk3328_grf,
|
|
}, {
|
|
.compatible = "rockchip,rk3368-grf",
|
|
.data = (void *)&rk3368_grf,
|
|
}, {
|
|
.compatible = "rockchip,rk3399-grf",
|
|
.data = (void *)&rk3399_grf,
|
|
},
|
|
{ /* sentinel */ },
|
|
};
|
|
|
|
static int __init rockchip_grf_init(void)
|
|
{
|
|
const struct rockchip_grf_info *grf_info;
|
|
const struct of_device_id *match;
|
|
struct device_node *np;
|
|
struct regmap *grf;
|
|
int ret, i;
|
|
|
|
np = of_find_matching_node_and_match(NULL, rockchip_grf_dt_match,
|
|
&match);
|
|
if (!np)
|
|
return -ENODEV;
|
|
if (!match || !match->data) {
|
|
pr_err("%s: missing grf data\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
grf_info = match->data;
|
|
|
|
grf = syscon_node_to_regmap(np);
|
|
if (IS_ERR(grf)) {
|
|
pr_err("%s: could not get grf syscon\n", __func__);
|
|
return PTR_ERR(grf);
|
|
}
|
|
|
|
for (i = 0; i < grf_info->num_values; i++) {
|
|
const struct rockchip_grf_value *val = &grf_info->values[i];
|
|
|
|
pr_debug("%s: adjusting %s in %#6x to %#10x\n", __func__,
|
|
val->desc, val->reg, val->val);
|
|
ret = regmap_write(grf, val->reg, val->val);
|
|
if (ret < 0)
|
|
pr_err("%s: write to %#6x failed with %d\n",
|
|
__func__, val->reg, ret);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
postcore_initcall(rockchip_grf_init);
|