mirror of
https://github.com/AsahiLinux/u-boot
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66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2019 Rockchip Electronics Co., Ltd
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*/
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#include <common.h>
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#include <dm.h>
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#include <dm/pinctrl.h>
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#include <regmap.h>
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#include <syscon.h>
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#include "pinctrl-rockchip.h"
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#define RK3036_PULL_OFFSET 0x118
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#define RK3036_PULL_PINS_PER_REG 16
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#define RK3036_PULL_BANK_STRIDE 8
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static void rk3036_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
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int pin_num, struct regmap **regmap,
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int *reg, u8 *bit)
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{
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struct rockchip_pinctrl_priv *priv = bank->priv;
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*regmap = priv->regmap_base;
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*reg = RK3036_PULL_OFFSET;
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*reg += bank->bank_num * RK3036_PULL_BANK_STRIDE;
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*reg += (pin_num / RK3036_PULL_PINS_PER_REG) * 4;
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*bit = pin_num % RK3036_PULL_PINS_PER_REG;
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};
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static struct rockchip_pin_bank rk3036_pin_banks[] = {
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PIN_BANK(0, 32, "gpio0"),
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PIN_BANK(1, 32, "gpio1"),
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PIN_BANK(2, 32, "gpio2"),
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};
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static struct rockchip_pin_ctrl rk3036_pin_ctrl = {
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.pin_banks = rk3036_pin_banks,
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.nr_banks = ARRAY_SIZE(rk3036_pin_banks),
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.label = "RK3036-GPIO",
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.type = RK3036,
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.grf_mux_offset = 0xa8,
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.pull_calc_reg = rk3036_calc_pull_reg_and_bit,
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};
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static const struct udevice_id rk3036_pinctrl_ids[] = {
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{
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.compatible = "rockchip,rk3036-pinctrl",
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.data = (ulong)&rk3036_pin_ctrl
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},
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{}
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};
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U_BOOT_DRIVER(pinctrl_rockchip) = {
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.name = "rk3036-pinctrl",
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.id = UCLASS_PINCTRL,
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.of_match = rk3036_pinctrl_ids,
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.priv_auto_alloc_size = sizeof(struct rockchip_pinctrl_priv),
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.ops = &rockchip_pinctrl_ops,
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#if !CONFIG_IS_ENABLED(OF_PLATDATA)
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.bind = dm_scan_fdt_dev,
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#endif
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.probe = rockchip_pinctrl_probe,
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};
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