[S] Change in coreboot[main]: device/pci_rom: Use correct endian conversion

[Patrick Rudolph (Code Review)]

Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/86383?usp=email )

Change subject: device/pci_rom: Use correct endian conversion
......................................................................

device/pci_rom: Use correct endian conversion

The Option ROM contains lots of 16bit values that are being used,
thus use the 16bit endianess conversion function over the 32bit
variant to avoid confusion.

Change-Id: I571be97a930ad018e1d1316117cefe5bd1c68f9b
Signed-off-by: Patrick Rudolph 
---
M src/device/pci_rom.c
1 file changed, 7 insertions(+), 7 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/83/86383/1

diff --git a/src/device/pci_rom.c b/src/device/pci_rom.c
index d60720e..7e19646d 100644
--- a/src/device/pci_rom.c
+++ b/src/device/pci_rom.c
@@ -93,16 +93,16 @@

printk(BIOS_SPEW,
           "PCI expansion ROM, signature 0x%04x, INIT size 0x%04x, data ptr 0x%04x\n",
-	       le32_to_cpu(rom_header->signature),
-	       rom_header->size * 512, le32_to_cpu(rom_header->data));
+	       le16_to_cpu(rom_header->signature),
+	       rom_header->size * 512, le16_to_cpu(rom_header->data));

-	if (le32_to_cpu(rom_header->signature) != PCI_ROM_HDR) {
+	if (le16_to_cpu(rom_header->signature) != PCI_ROM_HDR) {
    	printk(BIOS_ERR, "Incorrect expansion ROM header signature %04x\n",
-		       le32_to_cpu(rom_header->signature));
+		       le16_to_cpu(rom_header->signature));
    	return NULL;
    }

-	rom_data = (((void *)rom_header) + le32_to_cpu(rom_header->data));
+	rom_data = (((void *)rom_header) + le16_to_cpu(rom_header->data));

printk(BIOS_SPEW, "PCI ROM image, vendor ID %04x, device ID %04x,\n",
           rom_data->vendor, rom_data->device);
@@ -144,9 +144,9 @@
    						    + image_size);

rom_data = (struct pci_data *)((void *)rom_header
-				+ le32_to_cpu(rom_header->data));
+				+ le16_to_cpu(rom_header->data));

-		image_size = le32_to_cpu(rom_data->ilen) * 512;
+		image_size = le16_to_cpu(rom_data->ilen) * 512;
    } while ((rom_data->type != 0) && (rom_data->indicator != 0)); // make sure we got x86 version

if (rom_data->type != 0)