From fa5690c1f53929b78f9d9f4e270bd64befcda755 Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Sat, 15 Jul 2023 21:39:03 -0600
Subject: [PATCH] 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>
---
drivers/pci/pci_rom.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c
index 503feb1e6d..438583aa01 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,
--
2.39.5