1 files changed, 119 insertions, 0 deletions
diff --git a/roms/u-boot/cmd/clk.c b/roms/u-boot/cmd/clk.c
new file mode 100644
index 000000000..e3c3d2f9b
--- /dev/null
+++ b/roms/u-boot/cmd/clk.c
@@ -0,0 +1,119 @@
+// 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);