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cmd: fuse: Add a command to read fuses to memory

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With the fuse values in memory we can use some of the other u-boot shell
conditonal operators to do tests.

Signed-off-by: Angus Ainslie <angus@akkea.ca>
This commit is contained in:
Angus Ainslie 2021-11-28 08:02:53 -08:00 committed by Stefano Babic
parent c2a4af5ca8
commit b4f0c7f613
1 changed files with 27 additions and 0 deletions
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27
cmd/fuse.c
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@ -12,6 +12,7 @@
#include <command.h>
#include <console.h>
#include <fuse.h>
#include <mapmem.h>
#include <linux/errno.h>
static int strtou32(const char *str, unsigned int base, u32 *result)
@ -46,6 +47,8 @@ static int do_fuse(struct cmd_tbl *cmdtp, int flag, int argc,
const char *op = argc >= 2 ? argv[1] : NULL;
int confirmed = argc >= 3 && !strcmp(argv[2], "-y");
u32 bank, word, cnt, val, cmp;
ulong addr;
void *buf, *start;
int ret, i;
argc -= 2 + confirmed;
@ -73,6 +76,28 @@ static int do_fuse(struct cmd_tbl *cmdtp, int flag, int argc,
printf(" %.8x", val);
}
putc('\n');
} else if (!strcmp(op, "readm")) {
if (argc == 3)
cnt = 1;
else if (argc != 4 || strtou32(argv[3], 0, &cnt))
return CMD_RET_USAGE;
addr = simple_strtoul(argv[2], NULL, 16);
start = map_sysmem(addr, 4);
buf = start;
printf("Reading bank %u len %u to 0x%lx\n", bank, cnt, addr);
for (i = 0; i < cnt; i++, word++) {
ret = fuse_read(bank, word, &val);
if (ret)
goto err;
*((u32 *)buf) = val;
buf += 4;
}
unmap_sysmem(start);
} else if (!strcmp(op, "cmp")) {
if (argc != 3 || strtou32(argv[2], 0, &cmp))
return CMD_RET_USAGE;
@ -157,6 +182,8 @@ U_BOOT_CMD(
" starting at 'word'\n"
"fuse cmp <bank> <word> <hexval> - compare 'hexval' to fuse\n"
" at 'word'\n"
"fuse readm <bank> <word> <addr> [<cnt>] - read 1 or 'cnt' fuse words,\n"
" starting at 'word' into memory at 'addr'\n"
"fuse sense <bank> <word> [<cnt>] - sense 1 or 'cnt' fuse words,\n"
" starting at 'word'\n"
"fuse prog [-y] <bank> <word> <hexval> [<hexval>...] - program 1 or\n"