[PATCH 2/3] xilinx: board: Fix xilinx_eeprom_legacy_cleanup()

[Michal Simek]

When ethernet mac address contains 0x20 or 0xff MAC address is changed and
bytes are converted to zeros. That's why fix decoding algorithm to ignore
fields where MAC address is stored and all non printable chars (including
space) are zeroed.

Signed-off-by: Michal Simek <michal.simek at amd.com>
---

 board/xilinx/common/board.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/board/xilinx/common/board.c b/board/xilinx/common/board.c
index 6fc41e978669..8bcb54da88e7 100644
--- a/board/xilinx/common/board.c
+++ b/board/xilinx/common/board.c
@@ -101,9 +101,13 @@ static void xilinx_eeprom_legacy_cleanup(char *eeprom, int size)
 	for (i = 0; i < size; i++) {
 		byte = eeprom[i];
 
-		/* Remove all ffs and spaces */
-		if (byte == 0xff || byte == ' ')
+		/* Remove all non printable chars but ignore MAC address */
+		if ((i < offsetof(struct xilinx_legacy_format, eth_mac) ||
+		     i >= offsetof(struct xilinx_legacy_format, unused1)) &&
+		     (byte < '!' || byte > '~')) {
 			eeprom[i] = 0;
+			continue;
+		}
 
 		/* Convert strings to lower case */
 		if (byte >= 'A' && byte <= 'Z')
-- 
2.36.1