[thirdparty/u-boot.git] / cmd / clk.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2013 Xilinx, Inc.
 */
#include <common.h>
#include <command.h>
#include <clk.h>
#if defined(CONFIG_DM) && defined(CONFIG_CLK)
#include <dm.h>
#include <dm/device.h>
#include <dm/root.h>
#include <dm/device-internal.h>
#include <linux/clk-provider.h>
#endif

#if defined(CONFIG_DM) && defined(CONFIG_CLK)
static void show_clks(struct udevice *dev, int depth, int last_flag)
{
	int i, is_last;
	struct udevice *child;
	struct clk *clkp;
	u32 rate;

	clkp = dev_get_clk_ptr(dev);
	if (device_get_uclass_id(dev) == UCLASS_CLK && clkp) {
		rate = clk_get_rate(clkp);

	printf(" %-12u  %8d        ", rate, clkp->enable_count);

	for (i = depth; i >= 0; i--) {
		is_last = (last_flag >> i) & 1;
		if (i) {
			if (is_last)
				printf("    ");
			else
				printf("|   ");
		} else {
			if (is_last)
				printf("`-- ");
			else
				printf("|-- ");
		}
	}

	printf("%s\n", dev->name);
	}

	list_for_each_entry(child, &dev->child_head, sibling_node) {
		is_last = list_is_last(&child->sibling_node, &dev->child_head);
		show_clks(child, depth + 1, (last_flag << 1) | is_last);
	}
}

int __weak soc_clk_dump(void)
{
	struct udevice *root;

	root = dm_root();
	if (root) {
		printf(" Rate               Usecnt      Name\n");
		printf("------------------------------------------\n");
		show_clks(root, -1, 0);
	}

	return 0;
}
#else
int __weak soc_clk_dump(void)
{
	puts("Not implemented\n");
	return 1;
}
#endif

static int do_clk_dump(struct cmd_tbl *cmdtp, int flag, int argc,
		       char *const argv[])
{
	int ret;

	ret = soc_clk_dump();
	if (ret < 0) {
		printf("Clock dump error %d\n", ret);
		ret = CMD_RET_FAILURE;
	}

	return ret;
}

static struct cmd_tbl cmd_clk_sub[] = {
	U_BOOT_CMD_MKENT(dump, 1, 1, do_clk_dump, "", ""),
};

static int do_clk(struct cmd_tbl *cmdtp, int flag, int argc,
		  char *const argv[])
{
	struct cmd_tbl *c;

	if (argc < 2)
		return CMD_RET_USAGE;

	/* Strip off leading 'clk' command argument */
	argc--;
	argv++;

	c = find_cmd_tbl(argv[0], &cmd_clk_sub[0], ARRAY_SIZE(cmd_clk_sub));

	if (c)
		return c->cmd(cmdtp, flag, argc, argv);
	else
		return CMD_RET_USAGE;
}

#ifdef CONFIG_SYS_LONGHELP
static char clk_help_text[] =
	"dump - Print clock frequencies";
#endif

U_BOOT_CMD(clk, 2, 1, do_clk, "CLK sub-system", clk_help_text);
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
08d0d6f3 MS	2	/*
08d0d6f3 MS	3	* Copyright (C) 2013 Xilinx, Inc.
08d0d6f3 MS	4	*/
	5	#include <common.h>
	6	#include <command.h>
	7	#include <clk.h>
ff8eee03 MV	8	#if defined(CONFIG_DM) && defined(CONFIG_CLK)
ff8eee03 MV	9	#include <dm.h>
aeeb2e6d PF	10	#include <dm/device.h>
aeeb2e6d PF	11	#include <dm/root.h>
ff8eee03	12	#include <dm/device-internal.h>
aeeb2e6d	13	#include <linux/clk-provider.h>
ff8eee03	14	#endif
08d0d6f3	15
ff8eee03	16	#if defined(CONFIG_DM) && defined(CONFIG_CLK)
aeeb2e6d PF	17	static void show_clks(struct udevice *dev, int depth, int last_flag)
	18	{
	19	int i, is_last;
	20	struct udevice *child;
	21	struct clk *clkp;
	22	u32 rate;
	23
	24	clkp = dev_get_clk_ptr(dev);
	25	if (device_get_uclass_id(dev) == UCLASS_CLK && clkp) {
	26	rate = clk_get_rate(clkp);
	27
	28	printf(" %-12u %8d ", rate, clkp->enable_count);
	29
	30	for (i = depth; i >= 0; i--) {
	31	is_last = (last_flag >> i) & 1;
	32	if (i) {
	33	if (is_last)
	34	printf(" ");
	35	else
	36	printf("\| ");
	37	} else {
	38	if (is_last)
	39	printf("`-- ");
	40	else
	41	printf("\|-- ");
	42	}
	43	}
ff8eee03	44
aeeb2e6d PF	45	printf("%s\n", dev->name);
aeeb2e6d PF	46	}
ff8eee03	47
aeeb2e6d PF	48	list_for_each_entry(child, &dev->child_head, sibling_node) {
	49	is_last = list_is_last(&child->sibling_node, &dev->child_head);
	50	show_clks(child, depth + 1, (last_flag << 1) \| is_last);
	51	}
	52	}
80b44fb3	53
aeeb2e6d PF	54	int __weak soc_clk_dump(void)
	55	{
	56	struct udevice *root;
80b44fb3	57
aeeb2e6d PF	58	root = dm_root();
	59	if (root) {
	60	printf(" Rate Usecnt Name\n");
	61	printf("------------------------------------------\n");
	62	show_clks(root, -1, 0);
ff8eee03 MV	63	}
	64
	65	return 0;
aeeb2e6d	66	}
ff8eee03	67	#else
aeeb2e6d PF	68	int __weak soc_clk_dump(void)
aeeb2e6d PF	69	{
08d0d6f3 MS	70	puts("Not implemented\n");
	71	return 1;
	72	}
aeeb2e6d	73	#endif
08d0d6f3	74
09140113	75	static int do_clk_dump(struct cmd_tbl *cmdtp, int flag, int argc,
08d0d6f3 MS	76	char *const argv[])
08d0d6f3 MS	77	{
ebc675b9 MS	78	int ret;
	79
	80	ret = soc_clk_dump();
	81	if (ret < 0) {
	82	printf("Clock dump error %d\n", ret);
	83	ret = CMD_RET_FAILURE;
	84	}
	85
	86	return ret;
08d0d6f3 MS	87	}
08d0d6f3 MS	88
09140113	89	static struct cmd_tbl cmd_clk_sub[] = {
08d0d6f3 MS	90	U_BOOT_CMD_MKENT(dump, 1, 1, do_clk_dump, "", ""),
	91	};
	92
09140113	93	static int do_clk(struct cmd_tbl *cmdtp, int flag, int argc,
08d0d6f3 MS	94	char *const argv[])
08d0d6f3 MS	95	{
09140113	96	struct cmd_tbl *c;
08d0d6f3 MS	97
	98	if (argc < 2)
	99	return CMD_RET_USAGE;
	100
	101	/* Strip off leading 'clk' command argument */
	102	argc--;
	103	argv++;
	104
	105	c = find_cmd_tbl(argv[0], &cmd_clk_sub[0], ARRAY_SIZE(cmd_clk_sub));
	106
	107	if (c)
	108	return c->cmd(cmdtp, flag, argc, argv);
	109	else
	110	return CMD_RET_USAGE;
	111	}
	112
	113	#ifdef CONFIG_SYS_LONGHELP
	114	static char clk_help_text[] =
	115	"dump - Print clock frequencies";
	116	#endif
	117
	118	U_BOOT_CMD(clk, 2, 1, do_clk, "CLK sub-system", clk_help_text);