add can driver

hc

2023-12-02 57e32c52610e6a560beda60bf33c48f9f42306d5

 u-boot/env/envf.c
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@@ -44,16 +44,6 @@
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 #endif
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 #ifdef CONFIG_DM_MMC
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-static int pmbr_part_valid(struct partition *part)
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-{
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-	if (part->sys_ind == EFI_PMBR_OSTYPE_EFI_GPT &&
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-		get_unaligned_le32(&part->start_sect) == 1UL) {
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-		return 1;
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-	}
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-
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-	return 0;
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-}
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-
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 static int is_pmbr_valid(legacy_mbr * mbr)
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 {
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 	int i = 0;
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@@ -62,10 +52,10 @@
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 		return 0;
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 	for (i = 0; i < 4; i++) {
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-		if (pmbr_part_valid(&mbr->partition_record[i])) {
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+		if (mbr->partition_record[i].sys_ind == 0xc)
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 			return 1;
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-		}
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 	}
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+
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 	return 0;
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 }
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@@ -76,10 +66,10 @@
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 	/* Read legacy MBR from block 0 and validate it */
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 	if ((blk_dread(dev_desc, 0, 1, (ulong *)legacymbr) != 1)
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 		|| (is_pmbr_valid(legacymbr) != 1)) {
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-		return -1;
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+		return 0;
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 	}
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-	return 0;
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+	return 1;
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 }
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 #endif
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@@ -262,35 +252,6 @@
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 	return envf_num;
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 }
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-#ifdef CONFIG_ENV_PARTITION
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-static int envf_add_partition_bootargs(void)
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-{
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-	char *part_list;
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-	char *bootargs;
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-	int i;
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-
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-	for (i = 0; i < ARRAY_SIZE(part_type); i++) {
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-		part_list = env_get(part_type[i]);
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-		if (part_list)
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-			break;
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-	}
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-	if (!part_list)
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-		return -EINVAL;
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-
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-	bootargs = calloc(1, strlen(part_list) + strlen(part_type[i]) + 2);
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-	if (!bootargs)
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-		return -ENOMEM;
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-
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-	strcat(bootargs, part_type[i]);
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-	strcat(bootargs, "=");
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-	strcat(bootargs, part_list);
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-	env_update("bootargs", bootargs);
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-	free(bootargs);
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-
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-	return 0;
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-}
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-#endif
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-
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 static int envf_load(void)
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 {
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 	struct blk_desc *desc;
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@@ -313,10 +274,6 @@
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 			return -EINTR;
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 		}
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 	}
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-
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-#ifdef CONFIG_ENV_PARTITION
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-	envf_add_partition_bootargs();
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-#endif
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 	return 0;
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 }