Kernel "pci_ids.h" file has data for that card missing.
Also, Ellen needs some control bits flipped before it functions properly
as SDIO controller by the spec.
Should apply clenly to Linus and Drzeus trees. Please apply.
Signed-off-by: Vitaly Luban <[email protected]>
--- drzeus/drivers/mmc/host/sdhci.c 2007-11-27 19:51:35.000000000 -0800
+++ linux-2.6.23/drivers/mmc/host/sdhci.c 2007-11-30 18:43:02.000000000 -0800
@@ -97,6 +99,13 @@
SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS,
},
+ {
+ .vendor = PCI_VENDOR_ID_TOKYO_ELECTRON,
+ .device = PCI_DEVICE_ID_ELLEN,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ },
+
{ /* Generic SD host controller */
PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00)
},
@@ -1205,10 +1214,43 @@
* *
\*****************************************************************************/
+static int __devinit sdhci_ellen_init(struct pci_dev *pdev)
+{
+ int ret;
+ unsigned int config;
+ void __iomem * ioaddr;
+
+ if (pci_resource_flags(pdev, 0) & PCI_BASE_ADDRESS_SPACE)
+ return -ENOMEM;
+
+ ret = pci_request_region(pdev, 0, "EllenPCI");
+ if (ret)
+ return -ENOMEM;
+
+ ioaddr = ioremap_nocache(pci_resource_start(pdev, 0),
+ pci_resource_len(pdev, 0));
+ if (!ioaddr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ /* Do some magic passes to enable Ellen PCI interrupts */
+ config = readw(ioaddr + 0x4c);
+ config |= (1) | (1<<3) | (1<<6);
+ writew(config, ioaddr + 0x4c);
+ /* Retire last write by read */
+ config = readw(ioaddr + 0x4c);
+
+ iounmap(ioaddr);
+release:
+ pci_release_region(pdev, 0);
+ return ret;
+}
+
static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot)
{
int ret;
- unsigned int version;
+ unsigned int version, temp, iomemsize;
struct sdhci_chip *chip;
struct mmc_host *mmc;
struct sdhci_host *host;
@@ -1225,6 +1267,15 @@
first_bar &= PCI_SLOT_INFO_FIRST_BAR_MASK;
+ if ((pdev->vendor == PCI_VENDOR_ID_TOKYO_ELECTRON) &&
+ (pdev->device == PCI_DEVICE_ID_ELLEN)) {
+ first_bar = 2;
+ iomemsize = 0x400;
+ }
+ else {
+ iomemsize = 0x100;
+ }
+
if (first_bar > 5) {
printk(KERN_ERR DRIVER_NAME ": Invalid first BAR. Aborting.\n");
return -ENODEV;
@@ -1235,9 +1286,9 @@
return -ENODEV;
}
- if (pci_resource_len(pdev, first_bar + slot) != 0x100) {
- printk(KERN_ERR DRIVER_NAME ": Invalid iomem size. "
- "You may experience problems.\n");
+ if ((temp = pci_resource_len(pdev, first_bar + slot)) != iomemsize) {
+ printk(KERN_ERR DRIVER_NAME ": Invalid iomem size %x. "
+ "You may experience problems.\n", temp);
}
if ((pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) {
@@ -1526,6 +1577,24 @@
chip->pdev = pdev;
chip->quirks = ent->driver_data;
+ if ((pdev->vendor == PCI_VENDOR_ID_TOKYO_ELECTRON) &&
+ (pdev->device == PCI_DEVICE_ID_ELLEN)) {
+ ret = pci_read_config_byte(pdev, PCI_CLASS_PROG, &rev);
+ if (ret)
+ goto free;
+
+ if( rev & 0x1 ) {
+ /* Ellen indicates DMA support by this bit */
+ chip->quirks |= SDHCI_QUIRK_FORCE_DMA;
+ }
+
+ ret = sdhci_ellen_init(pdev);
+ if (ret) {
+ ret = -ENODEV;
+ goto free;
+ }
+ }
+
if (debug_quirks)
chip->quirks = debug_quirks;
--- drzeus/include/linux/pci_ids.h 2007-11-30 19:15:24.000000000 -0800
+++ linux-2.6.23/include/linux/pci_ids.h 2007-11-30 19:15:01.000000000 -0800
@@ -2057,6 +2057,9 @@
#define PCI_DEVICE_ID_BCM1250_PCI 0x0001
#define PCI_DEVICE_ID_BCM1250_HT 0x0002
+#define PCI_VENDOR_ID_TOKYO_ELECTRON 0x1679
+#define PCI_DEVICE_ID_ELLEN 0x3000
+
#define PCI_VENDOR_ID_ATHEROS 0x168c
#define PCI_VENDOR_ID_NETCELL 0x169c
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