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
stm32_rcc_bind(struct udevice * dev)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 };
79