part: efi: Fix offset

Both the config option and the DT options specify the offset to set the GPT
at in bytes, yet the code treats those values as block numbers.

Fix that.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>

disk/part_efi.c

@@ -534,6 +534,7 @@ int gpt_fill_pte(gpt_header *gpt_h, gpt_entry *gpt_e,
 static uint32_t partition_entries_offset(struct blk_desc *dev_desc)
 {
 	uint32_t offset_blks = 2;
+	uint32_t __maybe_unused offset_bytes;
 	int __maybe_unused config_offset;
 
 #if defined(CONFIG_EFI_PARTITION_ENTRIES_OFF)
@@ -545,8 +546,9 @@ static uint32_t partition_entries_offset(struct blk_desc *dev_desc)
 	 * the disk) for the entries can be set in
 	 * CONFIG_EFI_PARTITION_ENTRIES_OFF.
 	 */
-	offset_blks =
+	offset_bytes =
 		PAD_TO_BLOCKSIZE(CONFIG_EFI_PARTITION_ENTRIES_OFF, dev_desc);
+	offset_blks = offset_bytes / dev_desc->blksz;
 #endif
 
 #if defined(CONFIG_OF_CONTROL)
@@ -558,8 +560,10 @@ static uint32_t partition_entries_offset(struct blk_desc *dev_desc)
 	config_offset = fdtdec_get_config_int(gd->fdt_blob,
 					      "u-boot,efi-partition-entries-offset",
 					      -EINVAL);
-	if (config_offset != -EINVAL)
-		offset_blks = PAD_TO_BLOCKSIZE(config_offset, dev_desc);
+	if (config_offset != -EINVAL) {
+		offset_bytes = PAD_TO_BLOCKSIZE(config_offset, dev_desc);
+		offset_blks = offset_bytes / dev_desc->blksz;
+	}
 #endif
 
 	debug("efi: partition entries offset (in blocks): %d\n", offset_blks);