LXR uboot/drivers/misc/stm32

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
   4 * Author(s): Patrice Chotard, <patrice.chotard@foss.st.com> for STMicroelectronics.
   5 */
   6
   7#define LOG_CATEGORY UCLASS_NOP
   8
   9#include <common.h>
  10#include <dm.h>
  11#include <log.h>
  12#include <misc.h>
  13#include <stm32_rcc.h>
  14#include <dm/device-internal.h>
  15#include <dm/device_compat.h>
  16#include <dm/lists.h>
  17
  18struct stm32_rcc_clk stm32_rcc_clk_f42x = {
  19        .drv_name = "stm32fx_rcc_clock",
  20        .soc = STM32F42X,
  21};
  22
  23struct stm32_rcc_clk stm32_rcc_clk_f469 = {
  24        .drv_name = "stm32fx_rcc_clock",
  25        .soc = STM32F469,
  26};
  27
  28struct stm32_rcc_clk stm32_rcc_clk_f7 = {
  29        .drv_name = "stm32fx_rcc_clock",
  30        .soc = STM32F7,
  31};
  32
  33struct stm32_rcc_clk stm32_rcc_clk_h7 = {
  34        .drv_name = "stm32h7_rcc_clock",
  35};
  36
  37struct stm32_rcc_clk stm32_rcc_clk_mp1 = {
  38        .drv_name = "stm32mp1_clk",
  39        .soc = STM32MP1,
  40};
  41
  42static int stm32_rcc_bind(struct udevice *dev)
  43{
  44        struct udevice *child;
  45        struct driver *drv;
  46        struct stm32_rcc_clk *rcc_clk =
  47                (struct stm32_rcc_clk *)dev_get_driver_data(dev);
  48        int ret;
  49
  50        dev_dbg(dev, "RCC bind\n");
  51        drv = lists_driver_lookup_name(rcc_clk->drv_name);
  52        if (!drv) {
  53                dev_err(dev, "Cannot find driver '%s'\n", rcc_clk->drv_name);
  54                return -ENOENT;
  55        }
  56
  57        ret = device_bind_with_driver_data(dev, drv, dev->name,
  58                                           rcc_clk->soc,
  59                                           dev_ofnode(dev), &child);
  60
  61        if (ret)
  62                return ret;
  63
  64        drv = lists_driver_lookup_name("stm32_rcc_reset");
  65        if (!drv) {
  66                dev_err(dev, "Cannot find driver stm32_rcc_reset'\n");
  67                return -ENOENT;
  68        }
  69
  70        return device_bind_with_driver_data(dev, drv, dev->name,
  71                                            rcc_clk->soc,
  72                                            dev_ofnode(dev), &child);
  73}
  74
  75
  76static const struct udevice_id stm32_rcc_ids[] = {
  77        {.compatible = "st,stm32f42xx-rcc", .data = (ulong)&stm32_rcc_clk_f42x },
  78        {.compatible = "st,stm32f469-rcc", .data = (ulong)&stm32_rcc_clk_f469 },
  79        {.compatible = "st,stm32f746-rcc", .data = (ulong)&stm32_rcc_clk_f7 },
  80        {.compatible = "st,stm32h743-rcc", .data = (ulong)&stm32_rcc_clk_h7 },
  81        {.compatible = "st,stm32mp1-rcc", .data = (ulong)&stm32_rcc_clk_mp1 },
  82        { }
  83};
  84
  85U_BOOT_DRIVER(stm32_rcc) = {
  86        .name           = "stm32-rcc",
  87        .id             = UCLASS_NOP,
  88        .of_match       = stm32_rcc_ids,
  89        .bind           = stm32_rcc_bind,
  90};
  91