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#include <common.h>
#include <command.h>
#include <getopt.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/clock.h>
static int do_clko (cmd_tbl_t *cmdtp, int argc, char *argv[])
{
int opt, div = 0, src = -2, ret;
getopt_reset();
while((opt = getopt(argc, argv, "d:s:")) > 0) {
switch(opt) {
case 'd':
div = simple_strtoul(optarg, NULL, 0);
break;
case 's':
src = simple_strtoul(optarg, NULL, 0);
break;
}
}
if (div == 0 && src == -2) {
u_boot_cmd_usage(cmdtp);
return 0;
}
if (src == -1) {
imx_clko_set_src(-1);
return 0;
}
if (src != -2)
imx_clko_set_src(src);
if (div != 0) {
ret = imx_clko_set_div(div);
if (ret != div)
printf("limited divider to %d\n", ret);
}
return 0;
}
static __maybe_unused char cmd_clko_help[] =
"Usage: clko [OPTION]...\n"
"Route different signals to the i.MX clko pin\n"
" -d <div> Divider\n"
" -s <source> Clock select. See Ref. Manual for valid sources. Use -1\n"
" for disabling clock output\n";
U_BOOT_CMD_START(clko)
.maxargs = CONFIG_MAXARGS,
.cmd = do_clko,
.usage = "Adjust CLKO setting",
U_BOOT_CMD_HELP(cmd_clko_help)
U_BOOT_CMD_END
static int do_mcpy_test (cmd_tbl_t *cmdtp, int argc, char *argv[])
{
unsigned long src, dest, count, end;
if (argc < 4)
return 1;
dest = simple_strtoul(argv[1], NULL, 0);
src = simple_strtoul(argv[2], NULL, 0);
count = simple_strtoul(argv[3], NULL, 0);
printf("copying from 0x%08x to 0x%08x (size %d)\n", src, dest, count);
end = src + count;
__asm__ __volatile__(
"copy_loop:\n"
"ldmia %1!, {r3-r10}\n"
"stmia %0!, {r3-r10}\n"
"cmp %1, %2\n"
"ble copy_loop\n"
:
: "r" (dest), "r" (src), "r" (end)
: "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10");
return 0;
}
U_BOOT_CMD_START(mcpy_test)
.maxargs = CONFIG_MAXARGS,
.cmd = do_mcpy_test,
.usage = "Adjust CLKO setting",
U_BOOT_CMD_END
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