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- // 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) {
- depth++;
- 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, (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);
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