Skip to content

Commit

Permalink
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-mmc
Browse files Browse the repository at this point in the history
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-mmc:
  [MMC] sdhci: remove duplicate error message
  [MMC] sdhci: force DMA on some controllers
  [MMC] sdhci: quirk for broken reset
  [MMC] sdhci: Add SDHCI controller ids
  • Loading branch information
Linus Torvalds committed Jul 2, 2006
2 parents 4ebd9ab + 4cca56c commit f82bc17
Show file tree
Hide file tree
Showing 2 changed files with 51 additions and 6 deletions.
55 changes: 49 additions & 6 deletions drivers/mmc/sdhci.c
Original file line number Diff line number Diff line change
Expand Up @@ -32,9 +32,39 @@ static unsigned int debug_nodma = 0;
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 = {
/* handle any SD host controller */
{PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00)},
{
.vendor = PCI_VENDOR_ID_RICOH,
.device = PCI_DEVICE_ID_RICOH_R5C822,
.subvendor = PCI_VENDOR_ID_IBM,
.subdevice = PCI_ANY_ID,
.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 */
PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00)
},

{ /* end: all zeroes */ },
};

Expand Down Expand Up @@ -440,9 +470,7 @@ static void sdhci_finish_data(struct sdhci_host *host)
"though there were blocks left. Please report this "
"to " BUGMAIL ".\n", mmc_hostname(host->mmc));
data->error = MMC_ERR_FAILED;
}

if (host->size != 0) {
} else if (host->size != 0) {
printk(KERN_ERR "%s: %d bytes were left untransferred. "
"Please report this to " BUGMAIL ".\n",
mmc_hostname(host->mmc), host->size);
Expand Down Expand Up @@ -808,6 +836,19 @@ static void sdhci_tasklet_finish(unsigned long param)
if ((mrq->cmd->error != MMC_ERR_NONE) ||
(mrq->data && ((mrq->data->error != MMC_ERR_NONE) ||
(mrq->data->stop && (mrq->data->stop->error != MMC_ERR_NONE))))) {

/* Some controllers need this kick or reset won't work here */
if (host->chip->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET) {
unsigned int clock;

/* This is to force an update */
clock = host->clock;
host->clock = 0;
sdhci_set_clock(host, clock);
}

/* Spec says we should do both at the same time, but Ricoh
controllers do not like that. */
sdhci_reset(host, SDHCI_RESET_CMD);
sdhci_reset(host, SDHCI_RESET_DATA);
}
Expand Down Expand Up @@ -1165,7 +1206,9 @@ static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot)
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");
Expand Down
2 changes: 2 additions & 0 deletions include/linux/pci_ids.h
Original file line number Diff line number Diff line change
Expand Up @@ -728,6 +728,7 @@
#define PCI_DEVICE_ID_TI_TVP4020 0x3d07
#define PCI_DEVICE_ID_TI_4450 0x8011
#define PCI_DEVICE_ID_TI_XX21_XX11 0x8031
#define PCI_DEVICE_ID_TI_XX21_XX11_SD 0x8034
#define PCI_DEVICE_ID_TI_X515 0x8036
#define PCI_DEVICE_ID_TI_XX12 0x8039
#define PCI_DEVICE_ID_TI_1130 0xac12
Expand Down Expand Up @@ -1442,6 +1443,7 @@
#define PCI_DEVICE_ID_RICOH_RL5C475 0x0475
#define PCI_DEVICE_ID_RICOH_RL5C476 0x0476
#define PCI_DEVICE_ID_RICOH_RL5C478 0x0478
#define PCI_DEVICE_ID_RICOH_R5C822 0x0822

#define PCI_VENDOR_ID_DLINK 0x1186
#define PCI_DEVICE_ID_DLINK_DGE510T 0x4c00
Expand Down

0 comments on commit f82bc17

Please sign in to comment.