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[MMC] sdhci: reset sdhci controller early

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The specification states that the capabilities register might need a reset to
get correct values after boot up.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Pierre Ossman
2006-06-30 02:22:30 -07:00
committed by Russell King
parent 4a9655051f
commit d96649ed5a
1 changed files with 2 additions and 0 deletions
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2
drivers/mmc/sdhci.c
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@@ -1132,6 +1132,8 @@ static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot)
goto release; goto release;
} }
sdhci_reset(host, SDHCI_RESET_ALL);
version = readw(host->ioaddr + SDHCI_HOST_VERSION); version = readw(host->ioaddr + SDHCI_HOST_VERSION);
version = (version & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT; version = (version & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT;
if (version != 0) { if (version != 0) {