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powerpc/fsl_uli1575: fix RTC quirk to work on MPC8572DS and MPC8610HPCD 

This patch fixes RTC on MPC8572DS boards: dummy read helps only when
reading at the end of the bridge's memory (i.e. outside of behind the
bridge devices' assigned regions).

With this change the quirk also makes RTC work on MPC8610HPCD, so it's
unlikely that this will break MPC8641HPCN or MPC8544DS boards.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Anton Vorontsov 2008-06-12 03:04:02 +04:00 committed by Kumar Gala
parent ade254d7f0
commit 00c5372d37
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/platforms/fsl_uli1575.c
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@ -221,7 +221,7 @@ static void __devinit quirk_final_uli5249(struct pci_dev *dev)
for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
if ((bus->resource[i]) &&
(bus->resource[i]->flags & IORESOURCE_MEM)) {
dummy = ioremap(bus->resource[i]->start, 0x4);
dummy = ioremap(bus->resource[i]->end - 3, 0x4);
if (dummy) {
in_8(dummy);
iounmap(dummy);