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pci: Mask the ROM address in case it is already enabled
author
Simon Glass
<sjg@chromium.org>
Sun, 16 Jul 2023 03:39:03 +0000
(21:39 -0600)
committer
Bin Meng
<bmeng@tinylab.org>
Mon, 17 Jul 2023 09:12:26 +0000
(17:12 +0800)
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
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diff --git
a/drivers/pci/pci_rom.c
b/drivers/pci/pci_rom.c
index 503feb1e6d44bb6033ca114c5b42f022ce77c9f7..438583aa01795187e3e3eca147729b8b8bedf977 100644
(file)
--- 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,