From: Simon Glass <sjg@chromium.org>
Date: Sun, 16 Jul 2023 03:39:03 +0000 (-0600)
Subject: pci: Mask the ROM address in case it is already enabled
X-Git-Tag: v2023.10~90^2~15
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fa5690c1f53929b78f9d9f4e270bd64befcda755;p=platform%2Fkernel%2Fu-boot.git

pci: Mask the ROM address in case it is already enabled

In some cases the video ROM may have been enabled previously, such as by
a previous firmware stage. Use the correct address in that case.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
---

diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c
index 503feb1..438583a 100644
--- a/drivers/pci/pci_rom.c
+++ b/drivers/pci/pci_rom.c
@@ -93,6 +93,7 @@ static int pci_rom_probe(struct udevice *dev, struct pci_rom_header **hdrp)
 		debug("%s: rom_address=%x\n", __func__, rom_address);
 		return -ENOENT;
 	}
+	rom_address &= PCI_ROM_ADDRESS_MASK;
 
 	/* Enable expansion ROM address decoding. */
 	dm_pci_write_config32(dev, PCI_ROM_ADDRESS,