Merge tag 'u-boot-imx-20220220' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx

u-boot-imx-20220220
-------------------

CI : https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/11037

- ESDHC fixes
- imx8mq : MNT Reform 2 board
- imx8m: add support for Advantech RSB-3720
- fixes for imx8mn-ddr4-evk
- fixes gateworks boards
- doc : fix build for imx8mn_beacon
- fuses: compare and read functions
- imx8mn-ddr4-evk: boot from SD and Ethernet support

1 files changed, 48 insertions, 1 deletions

diff --git a/cmd/fuse.c b/cmd/fuse.c
index e001619d172..0676bb7a812 100644
--- a/cmd/fuse.c
+++ b/cmd/fuse.c
@@ -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)
@@ -45,7 +46,9 @@ 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;
+	u32 bank, word, cnt, val, cmp;
+	ulong addr;
+	void *buf, *start;
 	int ret, i;
 
 	argc -= 2 + confirmed;
@@ -73,6 +76,46 @@ 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;
+
+		printf("Comparing bank %u:\n", bank);
+		printf("\nWord 0x%.8x:", word);
+		printf("\nValue 0x%.8x:", cmp);
+
+		ret = fuse_read(bank, word, &val);
+		if (ret)
+			goto err;
+
+		printf("0x%.8x\n", val);
+		if (val != cmp) {
+			printf("failed\n");
+			return CMD_RET_FAILURE;
+		}
+		printf("passed\n");
 	} else if (!strcmp(op, "sense")) {
 		if (argc == 2)
 			cnt = 1;
@@ -137,6 +180,10 @@ U_BOOT_CMD(
 	"Fuse sub-system",
 	     "read <bank> <word> [<cnt>] - read 1 or 'cnt' fuse words,\n"
 	"    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"