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rockchip: Add a simple 'clock' command

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Add a command that displays the PLLs and their current rate.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2016-01-21 19:45:07 -07:00
parent ad443b7290
commit 74e53e0e9b
1 changed files with 24 additions and 0 deletions
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24
arch/arm/mach-rockchip/board.c
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@ -5,6 +5,7 @@
*/
#include <common.h>
#include <clk.h>
#include <dm.h>
#include <ram.h>
#include <asm/io.h>
@ -49,3 +50,26 @@ void enable_caches(void)
void lowlevel_init(void)
{
}
static int do_clock(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
struct udevice *dev;
for (uclass_first_device(UCLASS_CLK, &dev);
dev;
uclass_next_device(&dev)) {
ulong rate;
rate = clk_get_rate(dev);
printf("%s: %lu\n", dev->name, rate);
}
return 0;
}
U_BOOT_CMD(
clock, 2, 1, do_clock,
"display information about clocks",
""
);