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 struct stm32_rcc_clk stm32_rcc_clk_mp1 = {
34 .drv_name = "stm32mp1_clk",
35 .soc = STM32MP1,
36 };
37
stm32_rcc_bind(struct udevice * dev)38 static int stm32_rcc_bind(struct udevice *dev)
39 {
40 struct udevice *child;
41 struct driver *drv;
42 struct stm32_rcc_clk *rcc_clk =
43 (struct stm32_rcc_clk *)dev_get_driver_data(dev);
44 int ret;
45
46 debug("%s(dev=%p)\n", __func__, dev);
47 drv = lists_driver_lookup_name(rcc_clk->drv_name);
48 if (!drv) {
49 debug("Cannot find driver '%s'\n", rcc_clk->drv_name);
50 return -ENOENT;
51 }
52
53 ret = device_bind_with_driver_data(dev, drv, rcc_clk->drv_name,
54 rcc_clk->soc,
55 dev_ofnode(dev), &child);
56
57 if (ret)
58 return ret;
59
60 drv = lists_driver_lookup_name("stm32_rcc_reset");
61 if (!drv) {
62 dev_err(dev, "Cannot find driver stm32_rcc_reset'\n");
63 return -ENOENT;
64 }
65
66 return device_bind_with_driver_data(dev, drv, "stm32_rcc_reset",
67 rcc_clk->soc,
68 dev_ofnode(dev), &child);
69 }
70
71 static const struct misc_ops stm32_rcc_ops = {
72 };
73
74 static const struct udevice_id stm32_rcc_ids[] = {
75 {.compatible = "st,stm32f42xx-rcc", .data = (ulong)&stm32_rcc_clk_f42x },
76 {.compatible = "st,stm32f469-rcc", .data = (ulong)&stm32_rcc_clk_f469 },
77 {.compatible = "st,stm32f746-rcc", .data = (ulong)&stm32_rcc_clk_f7 },
78 {.compatible = "st,stm32h743-rcc", .data = (ulong)&stm32_rcc_clk_h7 },
79 {.compatible = "st,stm32mp1-rcc", .data = (ulong)&stm32_rcc_clk_mp1 },
80 { }
81 };
82
83 U_BOOT_DRIVER(stm32_rcc) = {
84 .name = "stm32-rcc",
85 .id = UCLASS_MISC,
86 .of_match = stm32_rcc_ids,
87 .bind = stm32_rcc_bind,
88 .ops = &stm32_rcc_ops,
89 };
90