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d090cbab64
Following next kernel rcc bindings, we must use a MFD RCC driver which is able to bind both clock and reset drivers. We can reuse and adapt RCC MFD driver already available for MCU SoCs (F4/F7/H7). Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2017, STMicroelectronics - All Rights Reserved
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* Author(s): Patrice Chotard, <patrice.chotard@st.com> for STMicroelectronics.
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*/
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#include <common.h>
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#include <dm.h>
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#include <misc.h>
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#include <stm32_rcc.h>
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#include <dm/device-internal.h>
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#include <dm/lists.h>
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struct stm32_rcc_clk stm32_rcc_clk_f42x = {
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.drv_name = "stm32fx_rcc_clock",
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.soc = STM32F42X,
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};
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struct stm32_rcc_clk stm32_rcc_clk_f469 = {
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.drv_name = "stm32fx_rcc_clock",
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.soc = STM32F469,
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};
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struct stm32_rcc_clk stm32_rcc_clk_f7 = {
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.drv_name = "stm32fx_rcc_clock",
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.soc = STM32F7,
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};
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struct stm32_rcc_clk stm32_rcc_clk_h7 = {
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.drv_name = "stm32h7_rcc_clock",
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};
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struct stm32_rcc_clk stm32_rcc_clk_mp1 = {
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.drv_name = "stm32mp1_clk",
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.soc = STM32MP1,
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};
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static int stm32_rcc_bind(struct udevice *dev)
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{
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struct udevice *child;
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struct driver *drv;
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struct stm32_rcc_clk *rcc_clk =
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(struct stm32_rcc_clk *)dev_get_driver_data(dev);
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int ret;
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debug("%s(dev=%p)\n", __func__, dev);
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drv = lists_driver_lookup_name(rcc_clk->drv_name);
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if (!drv) {
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debug("Cannot find driver '%s'\n", rcc_clk->drv_name);
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return -ENOENT;
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}
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ret = device_bind_with_driver_data(dev, drv, rcc_clk->drv_name,
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rcc_clk->soc,
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dev_ofnode(dev), &child);
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if (ret)
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return ret;
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drv = lists_driver_lookup_name("stm32_rcc_reset");
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if (!drv) {
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dev_err(dev, "Cannot find driver stm32_rcc_reset'\n");
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return -ENOENT;
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}
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return device_bind_with_driver_data(dev, drv, "stm32_rcc_reset",
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rcc_clk->soc,
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dev_ofnode(dev), &child);
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}
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static const struct misc_ops stm32_rcc_ops = {
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};
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static const struct udevice_id stm32_rcc_ids[] = {
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{.compatible = "st,stm32f42xx-rcc", .data = (ulong)&stm32_rcc_clk_f42x },
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{.compatible = "st,stm32f469-rcc", .data = (ulong)&stm32_rcc_clk_f469 },
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{.compatible = "st,stm32f746-rcc", .data = (ulong)&stm32_rcc_clk_f7 },
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{.compatible = "st,stm32h743-rcc", .data = (ulong)&stm32_rcc_clk_h7 },
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{.compatible = "st,stm32mp1-rcc", .data = (ulong)&stm32_rcc_clk_mp1 },
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{ }
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};
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U_BOOT_DRIVER(stm32_rcc) = {
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.name = "stm32-rcc",
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.id = UCLASS_MISC,
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.of_match = stm32_rcc_ids,
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.bind = stm32_rcc_bind,
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.ops = &stm32_rcc_ops,
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};
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