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chipset_enable.c: Use PCI_ACCESS_ECAM to access pci register

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In the latest pciutils(v3.13.0), it supports accessing pci registers
by ecam. This patch uses libpci version check to decide whether
flashrom calls libpci and use 0xcf8/0xcfc or ecam to access pci
registers.

BUG=b:359813524
TEST=with libpci >= 3.13.0, flashrom is working with ECAM access

Change-Id: I4549f87c8b01da0a1d3d8ce0b3b75c1f5fa2cbab
Signed-off-by: Kane Chen <kane.chen@intel.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/83896
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hsuan-ting Chen <roccochen@google.com>
Reviewed-by: Peter Marheine <pmarheine@chromium.org>
This commit is contained in:
Kane Chen
2024-08-13 16:40:08 +08:00
committed by Peter Marheine
parent 33dda3387c
commit 1197f0832d
3 changed files with 22 additions and 1 deletions
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6
chipset_enable.c
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@ -938,7 +938,13 @@ static int enable_flash_pch100_or_c620(const struct programmer_cfg *cfg,
msg_perr("Can't allocate PCI accessor.\n");
return ret;
}
#if CONFIG_USE_LIBPCI_ECAM == 1
pci_acc->method = PCI_ACCESS_ECAM;
msg_pdbg("Using libpci PCI_ACCESS_ECAM\n");
#else
pci_acc->method = PCI_ACCESS_I386_TYPE1;
msg_pdbg("Using libpci PCI_ACCESS_I386_TYPE1\n");
#endif
pci_init(pci_acc);
register_shutdown(enable_flash_pch100_shutdown, pci_acc);