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 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