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cmd: clk: Add trivial implementation of clock dump for DM

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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>
This commit is contained in:
Marek Vasut
2018-08-08 22:10:44 +02:00
committed by Simon Glass
parent e6fd018108
commit ff8eee0330
1 changed files with 37 additions and 0 deletions
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37
cmd/clk.c
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@ -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,