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powerpc/fsl: add 'pixis_reset dump' command 

Add the 'pixis_reset dump' command, which displays the contents of the PIXIS
registers.  This command is only available if DEBUG is defined.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Timur Tabi 2011-02-09 16:28:48 -06:00 committed by Kumar Gala
parent eb0d47e181
commit 82c9dfdc20
1 changed files with 58 additions and 0 deletions
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58
board/freescale/common/ngpixis.c
View File

@ -119,11 +119,50 @@ void __set_altbank(void)
}
void set_altbank(void) __attribute__((weak, alias("__set_altbank")));
#ifdef DEBUG
static void pixis_dump_regs(void)
{
unsigned int i;
printf("id=%02x\n", PIXIS_READ(id));
printf("arch=%02x\n", PIXIS_READ(arch));
printf("scver=%02x\n", PIXIS_READ(scver));
printf("csr=%02x\n", PIXIS_READ(csr));
printf("rst=%02x\n", PIXIS_READ(rst));
printf("aux=%02x\n", PIXIS_READ(aux));
printf("spd=%02x\n", PIXIS_READ(spd));
printf("brdcfg0=%02x\n", PIXIS_READ(brdcfg0));
printf("brdcfg1=%02x\n", PIXIS_READ(brdcfg1));
printf("addr=%02x\n", PIXIS_READ(addr));
printf("data=%02x\n", PIXIS_READ(data));
printf("led=%02x\n", PIXIS_READ(led));
printf("vctl=%02x\n", PIXIS_READ(vctl));
printf("vstat=%02x\n", PIXIS_READ(vstat));
printf("vcfgen0=%02x\n", PIXIS_READ(vcfgen0));
printf("ocmcsr=%02x\n", PIXIS_READ(ocmcsr));
printf("ocmmsg=%02x\n", PIXIS_READ(ocmmsg));
printf("gmdbg=%02x\n", PIXIS_READ(gmdbg));
printf("sclk=%02x%02x%02x\n",
PIXIS_READ(sclk[0]), PIXIS_READ(sclk[1]), PIXIS_READ(sclk[2]));
printf("dclk=%02x%02x%02x\n",
PIXIS_READ(dclk[0]), PIXIS_READ(dclk[1]), PIXIS_READ(dclk[2]));
printf("watch=%02x\n", PIXIS_READ(watch));
for (i = 0; i < 8; i++) {
printf("SW%u=%02x/%02x ", i + 1,
PIXIS_READ(s[i].sw), PIXIS_READ(s[i].en));
}
putc('\n');
}
#endif
int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned int i;
char *p_altbank = NULL;
#ifdef DEBUG
char *p_dump = NULL;
#endif
char *unknown_param = NULL;
/* No args is a simple reset request.
@ -137,6 +176,13 @@ int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
continue;
}
#ifdef DEBUG
if (strcmp(argv[i], "dump") == 0) {
p_dump = argv[i];
continue;
}
#endif
unknown_param = argv[i];
}
@ -145,6 +191,15 @@ int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return 1;
}
#ifdef DEBUG
if (p_dump) {
pixis_dump_regs();
/* 'dump' ignores other commands */
return 0;
}
#endif
if (p_altbank)
set_altbank();
else
@ -161,4 +216,7 @@ U_BOOT_CMD(
"Reset the board using the FPGA sequencer",
"- hard reset to default bank\n"
"pixis_reset altbank - reset to alternate bank\n"
#ifdef DEBUG
"pixis_reset dump - display the PIXIS registers\n"
#endif
);