{
int i, is_last;
struct udevice *child;
- struct clk *clkp;
+ struct clk *clkp, *parent;
u32 rate;
clkp = dev_get_clk_ptr(dev);
if (device_get_uclass_id(dev) == UCLASS_CLK && clkp) {
+ parent = clk_get_parent(clkp);
+ if (!IS_ERR(parent) && depth == -1)
+ return;
+ 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(" %-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);
+ printf("%s\n", dev->name);
}
list_for_each_entry(child, &dev->child_head, sibling_node) {
+ if (child == dev)
+ continue;
+
is_last = list_is_last(&child->sibling_node, &dev->child_head);
- show_clks(child, depth + 1, (last_flag << 1) | is_last);
+ show_clks(child, depth, (last_flag << 1) | is_last);
}
}
int __weak soc_clk_dump(void)
{
- struct udevice *root;
+ struct udevice *dev;
+ struct uclass *uc;
+ int ret;
- root = dm_root();
- if (root) {
- printf(" Rate Usecnt Name\n");
- printf("------------------------------------------\n");
- show_clks(root, -1, 0);
- }
+ ret = uclass_get(UCLASS_CLK, &uc);
+ if (ret)
+ return ret;
+
+ printf(" Rate Usecnt Name\n");
+ printf("------------------------------------------\n");
+
+ uclass_foreach_dev(dev, uc)
+ show_clks(dev, -1, 0);
return 0;
}
return ret;
}
+#if CONFIG_IS_ENABLED(DM) && CONFIG_IS_ENABLED(CLK)
+static int do_clk_setfreq(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ struct clk *clk = NULL;
+ s32 freq;
+ struct udevice *dev;
+
+ if (argc != 3)
+ return CMD_RET_USAGE;
+
+ freq = dectoul(argv[2], NULL);
+
+ if (!uclass_get_device_by_name(UCLASS_CLK, argv[1], &dev))
+ clk = dev_get_clk_ptr(dev);
+
+ if (!clk) {
+ printf("clock '%s' not found.\n", argv[1]);
+ return CMD_RET_FAILURE;
+ }
+
+ freq = clk_set_rate(clk, freq);
+ if (freq < 0) {
+ printf("set_rate failed: %d\n", freq);
+ return CMD_RET_FAILURE;
+ }
+
+ printf("set_rate returns %u\n", freq);
+ return 0;
+}
+#endif
+
static struct cmd_tbl cmd_clk_sub[] = {
U_BOOT_CMD_MKENT(dump, 1, 1, do_clk_dump, "", ""),
+#if CONFIG_IS_ENABLED(DM) && CONFIG_IS_ENABLED(CLK)
+ U_BOOT_CMD_MKENT(setfreq, 3, 1, do_clk_setfreq, "", ""),
+#endif
};
static int do_clk(struct cmd_tbl *cmdtp, int flag, int argc,
#ifdef CONFIG_SYS_LONGHELP
static char clk_help_text[] =
- "dump - Print clock frequencies";
+ "dump - Print clock frequencies\n"
+ "clk setfreq [clk] [freq] - Set clock frequency";
#endif
-U_BOOT_CMD(clk, 2, 1, do_clk, "CLK sub-system", clk_help_text);
+U_BOOT_CMD(clk, 4, 1, do_clk, "CLK sub-system", clk_help_text);