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authorMarek Vasut <marex@denx.de>2018-08-08 22:10:44 +0200
committerSimon Glass <sjg@chromium.org>2018-09-29 11:49:35 -0600
commitff8eee0330a68ee3fbb3e15ed8e315043784869f (patch)
tree35294432b19e1faad7148aa6d8c9276c79ba7fff /cmd
parente6fd0181082a04e743a07ebd9f6fdd0e06dc1399 (diff)
cmd: clk: Add trivial implementation of clock dump for DM
Add trivial implementation of the clk dump in case DM is enabled. This implementation just iterates over all the clock registered with the CLK uclass and prints their rate. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chin Liang See <chin.liang.see@intel.com> Cc: Dinh Nguyen <dinguyen@kernel.org> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com> Reviewed-by: Ley Foon Tan <ley.foon.tan@intel.com>
Diffstat (limited to 'cmd')
-rw-r--r--cmd/clk.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/cmd/clk.c b/cmd/clk.c
index 73fb25092b..fd4231589c 100644
--- a/cmd/clk.c
+++ b/cmd/clk.c
@@ -5,11 +5,48 @@
#include <common.h>
#include <command.h>
#include <clk.h>
+#if defined(CONFIG_DM) && defined(CONFIG_CLK)
+#include <dm.h>
+#include <dm/device-internal.h>
+#endif
int __weak soc_clk_dump(void)
{
+#if defined(CONFIG_DM) && defined(CONFIG_CLK)
+ struct udevice *dev;
+ struct uclass *uc;
+ struct clk clk;
+ int ret;
+
+ /* Device addresses start at 1 */
+ ret = uclass_get(UCLASS_CLK, &uc);
+ if (ret)
+ return ret;
+
+ uclass_foreach_dev(dev, uc) {
+ memset(&clk, 0, sizeof(clk));
+ ret = device_probe(dev);
+ if (ret) {
+ printf("%-30.30s : ? Hz\n", dev->name);
+ continue;
+ }
+
+ ret = clk_request(dev, &clk);
+ if (ret) {
+ printf("%-30.30s : ? Hz\n", dev->name);
+ continue;
+ }
+
+ printf("%-30.30s : %lu Hz\n", dev->name, clk_get_rate(&clk));
+
+ clk_free(&clk);
+ }
+
+ return 0;
+#else
puts("Not implemented\n");
return 1;
+#endif
}
static int do_clk_dump(cmd_tbl_t *cmdtp, int flag, int argc,