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soc/intel/common/lpc: Don't open a window for unassigned resources

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Don't attempt to open a PMIO window for a resource which doesn't have
the IORESOURCE_ASSIGNED flag set, since there is no point in doing so
and there's a high likelihood that the base address is 0, which will
throw an error.

TEST=build/boot purism/librem_cnl (Mini v2), ensure no errors in cbmem
log for attempting to open a PMIO window for unaassigned resources with
base address 0.

Change-Id: Ifba14a8f134ba12d5f5e9fdbac775d4f82b4c4de
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80750
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Matt DeVillier 2024-02-25 16:14:15 -06:00
parent 1aecff447d
commit c3a34a4828
1 changed files with 1 additions and 1 deletions
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2
src/soc/intel/common/block/lpc/lpc.c
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@ -91,7 +91,7 @@ static void pch_lpc_loop_resources(struct device *dev)
return;
for (res = dev->resource_list; res; res = res->next) {
if (res->flags & IORESOURCE_IO)
if ((res->flags & IORESOURCE_IO) && (res->flags & IORESOURCE_ASSIGNED))
lpc_open_pmio_window(res->base, res->size);
}
pch_lpc_set_child_resources(dev);