From e1c4ed57d5190e3064ae10ae3a87cdc75d2786fc Mon Sep 17 00:00:00 2001
From: =?utf8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Sat, 21 Jan 2023 13:45:36 +0100
Subject: [PATCH] tools: kwboot: Fix parsing SATA kwbimage
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Despite the official specification, Marvell BootROM does not interpret
srcaddr from SATA image as number of sectors the beginning of the hard
drive, but as number of sectors relative to the main header.

To parse SATA kwbimage in the same way as Marvell BootROM, it is needed to
interpret srcaddr as relative offset to the main header. This change fixes
loading of SATA images via kwboot over UART.

Fixes: 792e42355083 ("tools: kwboot: Patch source address in image header")
Signed-off-by: Pali Rohár <pali@kernel.org>
---
 tools/kwboot.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/tools/kwboot.c b/tools/kwboot.c
index 188f944263..bf410520de 100644
--- a/tools/kwboot.c
+++ b/tools/kwboot.c
@@ -1888,10 +1888,7 @@ kwboot_img_patch(void *img, size_t *size, int baudrate)
 
 	switch (hdr->blockid) {
 	case IBR_HDR_SATA_ID:
-		if (srcaddr < 1)
-			goto err;
-
-		hdr->srcaddr = cpu_to_le32((srcaddr - 1) * 512);
+		hdr->srcaddr = cpu_to_le32(srcaddr * 512);
 		break;
 
 	case IBR_HDR_PEX_ID:
-- 
2.39.5