git.sur5r.net Git - u-boot/blob - drivers/misc/stm32_rcc.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
   4  * Author(s): Patrice Chotard, <patrice.chotard@st.com> for STMicroelectronics.
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <misc.h>
  10 #include <stm32_rcc.h>
  11 #include <dm/device-internal.h>
  12 #include <dm/lists.h>
  13
  14 struct stm32_rcc_clk stm32_rcc_clk_f42x = {
  15         .drv_name = "stm32fx_rcc_clock",
  16         .soc = STM32F42X,
  17 };
  18
  19 struct stm32_rcc_clk stm32_rcc_clk_f469 = {
  20         .drv_name = "stm32fx_rcc_clock",
  21         .soc = STM32F469,
  22 };
  23
  24 struct stm32_rcc_clk stm32_rcc_clk_f7 = {
  25         .drv_name = "stm32fx_rcc_clock",
  26         .soc = STM32F7,
  27 };
  28
  29 struct stm32_rcc_clk stm32_rcc_clk_h7 = {
  30         .drv_name = "stm32h7_rcc_clock",
  31 };
  32
  33 static int stm32_rcc_bind(struct udevice *dev)
  34 {
  35         struct udevice *child;
  36         struct driver *drv;
  37         struct stm32_rcc_clk *rcc_clk =
  38                 (struct stm32_rcc_clk *)dev_get_driver_data(dev);
  39         int ret;
  40
  41         debug("%s(dev=%p)\n", __func__, dev);
  42
  43         drv = lists_driver_lookup_name(rcc_clk->drv_name);
  44         if (!drv) {
  45                 debug("Cannot find driver '%s'\n", rcc_clk->drv_name);
  46                 return -ENOENT;
  47         }
  48
  49         ret = device_bind_with_driver_data(dev, drv, rcc_clk->drv_name,
  50                                            rcc_clk->soc,
  51                                            dev_ofnode(dev), &child);
  52
  53         if (ret)
  54                 return ret;
  55
  56         return device_bind_driver_to_node(dev, "stm32_rcc_reset",
  57                                           "stm32_rcc_reset",
  58                                           dev_ofnode(dev), &child);
  59 }
  60
  61 static const struct misc_ops stm32_rcc_ops = {
  62 };
  63
  64 static const struct udevice_id stm32_rcc_ids[] = {
  65         {.compatible = "st,stm32f42xx-rcc", .data = (ulong)&stm32_rcc_clk_f42x },
  66         {.compatible = "st,stm32f469-rcc", .data = (ulong)&stm32_rcc_clk_f469 },
  67         {.compatible = "st,stm32f746-rcc", .data = (ulong)&stm32_rcc_clk_f7 },
  68         {.compatible = "st,stm32h743-rcc", .data = (ulong)&stm32_rcc_clk_h7 },
  69         { }
  70 };
  71
  72 U_BOOT_DRIVER(stm32_rcc) = {
  73         .name           = "stm32-rcc",
  74         .id             = UCLASS_MISC,
  75         .of_match       = stm32_rcc_ids,
  76         .bind           = stm32_rcc_bind,
  77         .ops            = &stm32_rcc_ops,
  78 };