[thirdparty/u-boot.git] / drivers / misc / stm32_rcc.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
 * Author(s): Patrice Chotard, <patrice.chotard@st.com> for STMicroelectronics.
 */

#include <common.h>
#include <dm.h>
#include <misc.h>
#include <stm32_rcc.h>
#include <dm/device-internal.h>
#include <dm/lists.h>

struct stm32_rcc_clk stm32_rcc_clk_f4 = {
	.drv_name = "stm32fx_rcc_clock",
	.soc = STM32F4,
};

struct stm32_rcc_clk stm32_rcc_clk_f7 = {
	.drv_name = "stm32fx_rcc_clock",
	.soc = STM32F7,
};

struct stm32_rcc_clk stm32_rcc_clk_h7 = {
	.drv_name = "stm32h7_rcc_clock",
};

static int stm32_rcc_bind(struct udevice *dev)
{
	struct udevice *child;
	struct driver *drv;
	struct stm32_rcc_clk *rcc_clk =
		(struct stm32_rcc_clk *)dev_get_driver_data(dev);
	int ret;

	debug("%s(dev=%p)\n", __func__, dev);

	drv = lists_driver_lookup_name(rcc_clk->drv_name);
	if (!drv) {
		debug("Cannot find driver '%s'\n", rcc_clk->drv_name);
		return -ENOENT;
	}

	ret = device_bind_with_driver_data(dev, drv, rcc_clk->drv_name,
					   rcc_clk->soc,
					   dev_ofnode(dev), &child);

	if (ret)
		return ret;

#ifdef CONFIG_SPL_BUILD
	return 0;
#else
	return device_bind_driver_to_node(dev, "stm32_rcc_reset",
					  "stm32_rcc_reset",
					  dev_ofnode(dev), &child);
#endif
}

static const struct misc_ops stm32_rcc_ops = {
};

static const struct udevice_id stm32_rcc_ids[] = {
	{.compatible = "st,stm32f42xx-rcc", .data = (ulong)&stm32_rcc_clk_f4 },
	{.compatible = "st,stm32f746-rcc", .data = (ulong)&stm32_rcc_clk_f7 },
	{.compatible = "st,stm32h743-rcc", .data = (ulong)&stm32_rcc_clk_h7 },
	{ }
};

U_BOOT_DRIVER(stm32_rcc) = {
	.name		= "stm32-rcc",
	.id		= UCLASS_MISC,
	.of_match	= stm32_rcc_ids,
	.bind		= stm32_rcc_bind,
	.ops		= &stm32_rcc_ops,
};
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
4e280b91	2	/*
3bc599c9 PC	3	* Copyright (C) 2017, STMicroelectronics - All Rights Reserved
3bc599c9 PC	4	* Author(s): Patrice Chotard, <patrice.chotard@st.com> for STMicroelectronics.
4e280b91 CK	5	*/
	6
	7	#include <common.h>
	8	#include <dm.h>
	9	#include <misc.h>
928954fe PC	10	#include <stm32_rcc.h>
928954fe PC	11	#include <dm/device-internal.h>
4e280b91 CK	12	#include <dm/lists.h>
4e280b91 CK	13
928954fe PC	14	struct stm32_rcc_clk stm32_rcc_clk_f4 = {
	15	.drv_name = "stm32fx_rcc_clock",
	16	.soc = STM32F4,
	17	};
	18
	19	struct stm32_rcc_clk stm32_rcc_clk_f7 = {
	20	.drv_name = "stm32fx_rcc_clock",
	21	.soc = STM32F7,
	22	};
	23
	24	struct stm32_rcc_clk stm32_rcc_clk_h7 = {
	25	.drv_name = "stm32h7_rcc_clock",
	26	};
	27
4e280b91 CK	28	static int stm32_rcc_bind(struct udevice *dev)
4e280b91 CK	29	{
4e280b91	30	struct udevice *child;
928954fe PC	31	struct driver *drv;
	32	struct stm32_rcc_clk *rcc_clk =
	33	(struct stm32_rcc_clk *)dev_get_driver_data(dev);
	34	int ret;
4e280b91 CK	35
	36	debug("%s(dev=%p)\n", __func__, dev);
	37
928954fe PC	38	drv = lists_driver_lookup_name(rcc_clk->drv_name);
	39	if (!drv) {
	40	debug("Cannot find driver '%s'\n", rcc_clk->drv_name);
	41	return -ENOENT;
	42	}
	43
	44	ret = device_bind_with_driver_data(dev, drv, rcc_clk->drv_name,
	45	rcc_clk->soc,
	46	dev_ofnode(dev), &child);
	47
4e280b91 CK	48	if (ret)
	49	return ret;
	50
928954fe PC	51	#ifdef CONFIG_SPL_BUILD
	52	return 0;
	53	#else
4e280b91 CK	54	return device_bind_driver_to_node(dev, "stm32_rcc_reset",
	55	"stm32_rcc_reset",
	56	dev_ofnode(dev), &child);
928954fe	57	#endif
4e280b91 CK	58	}
	59
	60	static const struct misc_ops stm32_rcc_ops = {
	61	};
	62
	63	static const struct udevice_id stm32_rcc_ids[] = {
928954fe PC	64	{.compatible = "st,stm32f42xx-rcc", .data = (ulong)&stm32_rcc_clk_f4 },
	65	{.compatible = "st,stm32f746-rcc", .data = (ulong)&stm32_rcc_clk_f7 },
	66	{.compatible = "st,stm32h743-rcc", .data = (ulong)&stm32_rcc_clk_h7 },
4e280b91 CK	67	{ }
	68	};
	69
	70	U_BOOT_DRIVER(stm32_rcc) = {
	71	.name = "stm32-rcc",
	72	.id = UCLASS_MISC,
	73	.of_match = stm32_rcc_ids,
	74	.bind = stm32_rcc_bind,
	75	.ops = &stm32_rcc_ops,
	76	};