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

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

#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
4e280b91	1	/*
3bc599c9 PC	2	* Copyright (C) 2017, STMicroelectronics - All Rights Reserved
3bc599c9 PC	3	* Author(s): Patrice Chotard, <patrice.chotard@st.com> for STMicroelectronics.
4e280b91 CK	4	*
	5	* SPDX-License-Identifier: GPL-2.0+
	6	*/
	7
	8	#include <common.h>
	9	#include <dm.h>
	10	#include <misc.h>
928954fe PC	11	#include <stm32_rcc.h>
928954fe PC	12	#include <dm/device-internal.h>
4e280b91 CK	13	#include <dm/lists.h>
4e280b91 CK	14
928954fe PC	15	struct stm32_rcc_clk stm32_rcc_clk_f4 = {
	16	.drv_name = "stm32fx_rcc_clock",
	17	.soc = STM32F4,
	18	};
	19
	20	struct stm32_rcc_clk stm32_rcc_clk_f7 = {
	21	.drv_name = "stm32fx_rcc_clock",
	22	.soc = STM32F7,
	23	};
	24
	25	struct stm32_rcc_clk stm32_rcc_clk_h7 = {
	26	.drv_name = "stm32h7_rcc_clock",
	27	};
	28
4e280b91 CK	29	static int stm32_rcc_bind(struct udevice *dev)
4e280b91 CK	30	{
4e280b91	31	struct udevice *child;
928954fe PC	32	struct driver *drv;
	33	struct stm32_rcc_clk *rcc_clk =
	34	(struct stm32_rcc_clk *)dev_get_driver_data(dev);
	35	int ret;
4e280b91 CK	36
	37	debug("%s(dev=%p)\n", __func__, dev);
	38
928954fe PC	39	drv = lists_driver_lookup_name(rcc_clk->drv_name);
	40	if (!drv) {
	41	debug("Cannot find driver '%s'\n", rcc_clk->drv_name);
	42	return -ENOENT;
	43	}
	44
	45	ret = device_bind_with_driver_data(dev, drv, rcc_clk->drv_name,
	46	rcc_clk->soc,
	47	dev_ofnode(dev), &child);
	48
4e280b91 CK	49	if (ret)
	50	return ret;
	51
928954fe PC	52	#ifdef CONFIG_SPL_BUILD
	53	return 0;
	54	#else
4e280b91 CK	55	return device_bind_driver_to_node(dev, "stm32_rcc_reset",
	56	"stm32_rcc_reset",
	57	dev_ofnode(dev), &child);
928954fe	58	#endif
4e280b91 CK	59	}
	60
	61	static const struct misc_ops stm32_rcc_ops = {
	62	};
	63
	64	static const struct udevice_id stm32_rcc_ids[] = {
928954fe PC	65	{.compatible = "st,stm32f42xx-rcc", .data = (ulong)&stm32_rcc_clk_f4 },
	66	{.compatible = "st,stm32f746-rcc", .data = (ulong)&stm32_rcc_clk_f7 },
	67	{.compatible = "st,stm32h743-rcc", .data = (ulong)&stm32_rcc_clk_h7 },
4e280b91 CK	68	{ }
	69	};
	70
	71	U_BOOT_DRIVER(stm32_rcc) = {
	72	.name = "stm32-rcc",
	73	.id = UCLASS_MISC,
	74	.of_match = stm32_rcc_ids,
	75	.bind = stm32_rcc_bind,
	76	.ops = &stm32_rcc_ops,
	77	};