The patch titled
From: Pierre Ossman <drzeus@xxxxxxxxx>
has been added to the -mm tree. Its filename is
mmc-force-dma-on-some-controllers.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: From: Pierre Ossman <drzeus@xxxxxxxxx>
Some controllers incorrectly report that the cannot do DMA. Forcefully
enable it for those that we know it works fine on.
Signed-off-by: Pierre Ossman <drzeus@xxxxxxxxx>
---
index 617a588..60d838c 100644
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/mmc/sdhci.c | 24 ++++++++++++++++++++++--
1 files changed, 22 insertions(+), 2 deletions(-)
diff -puN drivers/mmc/sdhci.c~mmc-force-dma-on-some-controllers drivers/mmc/sdhci.c
--- 25/drivers/mmc/sdhci.c~mmc-force-dma-on-some-controllers Tue Jun 27 14:28:59 2006
+++ 25-akpm/drivers/mmc/sdhci.c Tue Jun 27 14:28:59 2006
@@ -33,6 +33,7 @@ static unsigned int debug_forcedma = 0;
static unsigned int debug_quirks = 0;
#define SDHCI_QUIRK_CLOCK_BEFORE_RESET (1<<0)
+#define SDHCI_QUIRK_FORCE_DMA (1<<1)
static const struct pci_device_id pci_ids[] __devinitdata = {
{
@@ -40,7 +41,24 @@ static const struct pci_device_id pci_id
.device = PCI_DEVICE_ID_RICOH_R5C822,
.subvendor = PCI_VENDOR_ID_IBM,
.subdevice = PCI_ANY_ID,
- .driver_data = SDHCI_QUIRK_CLOCK_BEFORE_RESET,
+ .driver_data = SDHCI_QUIRK_CLOCK_BEFORE_RESET |
+ SDHCI_QUIRK_FORCE_DMA,
+ },
+
+ {
+ .vendor = PCI_VENDOR_ID_RICOH,
+ .device = PCI_DEVICE_ID_RICOH_R5C822,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = SDHCI_QUIRK_FORCE_DMA,
+ },
+
+ {
+ .vendor = PCI_VENDOR_ID_TI,
+ .device = PCI_DEVICE_ID_TI_XX21_XX11_SD,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = SDHCI_QUIRK_FORCE_DMA,
},
{ /* Generic SD host controller */
@@ -1190,7 +1208,9 @@ static int __devinit sdhci_probe_slot(st
else if (debug_forcedma) {
DBG("DMA forced on\n");
host->flags |= SDHCI_USE_DMA;
- } else if ((pdev->class & 0x0000FF) != PCI_SDHCI_IFDMA)
+ } else if (chip->quirks & SDHCI_QUIRK_FORCE_DMA)
+ host->flags |= SDHCI_USE_DMA;
+ else if ((pdev->class & 0x0000FF) != PCI_SDHCI_IFDMA)
DBG("Controller doesn't have DMA interface\n");
else if (!(caps & SDHCI_CAN_DO_DMA))
DBG("Controller doesn't have DMA capability\n");
_
Patches currently in -mm which might be from drzeus@xxxxxxxxx are
mmc-check-sdhci-base-clock.patch
mmc-print-device-id.patch
mmc-support-for-multiple-voltages.patch
mmc-fix-timeout-loops-in-sdhci.patch
mmc-fix-sdhci-reset-timeout.patch
mmc-proper-timeout-handling.patch
mmc-correct-register-order.patch
mmc-fix-interrupt-handling.patch
mmc-fix-sdhci-pio-routines.patch
mmc-avoid-sdhci-dma-boundaries.patch
mmc-test-for-invalid-block-size.patch
mmc-check-only-relevant-inhibit-bits.patch
mmc-check-controller-version.patch
mmc-reset-sdhci-controller-early.patch
mmc-more-dma-capabilities-tests.patch
mmc-support-controller-specific-quirks.patch
mmc-version-bump-sdhci.patch
mmc-add-sdhci-controller-ids.patch
mmc-quirk-for-broken-reset.patch
mmc-force-dma-on-some-controllers.patch
mmc-remove-duplicate-error-message.patch
-
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