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--- a/drivers/ata/pata_ixp4xx_cf.c
+++ b/drivers/ata/pata_ixp4xx_cf.c
@@ -24,16 +24,58 @@
#include <scsi/scsi_host.h>
#define DRV_NAME "pata_ixp4xx_cf"
-#define DRV_VERSION "0.2"
+#define DRV_VERSION "0.3"
static int ixp4xx_set_mode(struct ata_link *link, struct ata_device **error)
{
struct ata_device *dev;
+ struct ixp4xx_pata_data *data = link->ap->host->dev->platform_data;
+ unsigned int pio_mask;
ata_for_each_dev(dev, link, ENABLED) {
- ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
- dev->pio_mode = XFER_PIO_0;
- dev->xfer_mode = XFER_PIO_0;
+ if (dev->id[ATA_ID_FIELD_VALID] & (1 << 1)) {
+ pio_mask = dev->id[ATA_ID_PIO_MODES] & 0x03;
+ if (pio_mask & (1 << 1)) {
+ pio_mask = 4;
+ } else {
+ pio_mask = 3;
+ }
+ } else {
+ pio_mask = (dev->id[ATA_ID_OLD_PIO_MODES] >> 8);
+ }
+
+ switch (pio_mask){
+ case 0:
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
+ dev->pio_mode = XFER_PIO_0;
+ dev->xfer_mode = XFER_PIO_0;
+ *data->cs0_cfg = 0x8a473c03;
+ break;
+ case 1:
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO1\n");
+ dev->pio_mode = XFER_PIO_1;
+ dev->xfer_mode = XFER_PIO_1;
+ *data->cs0_cfg = 0x86433c03;
+ break;
+ case 2:
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO2\n");
+ dev->pio_mode = XFER_PIO_2;
+ dev->xfer_mode = XFER_PIO_2;
+ *data->cs0_cfg = 0x82413c03;
+ break;
+ case 3:
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO3\n");
+ dev->pio_mode = XFER_PIO_3;
+ dev->xfer_mode = XFER_PIO_3;
+ *data->cs0_cfg = 0x80823c03;
+ break;
+ case 4:
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO4\n");
+ dev->pio_mode = XFER_PIO_4;
+ dev->xfer_mode = XFER_PIO_4;
+ *data->cs0_cfg = 0x80403c03;
+ break;
+ }
dev->xfer_shift = ATA_SHIFT_PIO;
dev->flags |= ATA_DFLAG_PIO;
}
@@ -46,6 +88,7 @@ static unsigned int ixp4xx_mmio_data_xfe
unsigned int i;
unsigned int words = buflen >> 1;
u16 *buf16 = (u16 *) buf;
+ unsigned int pio_mask;
struct ata_port *ap = dev->link->ap;
void __iomem *mmio = ap->ioaddr.data_addr;
struct ixp4xx_pata_data *data = ap->host->dev->platform_data;
@@ -53,8 +96,34 @@ static unsigned int ixp4xx_mmio_data_xfe
/* set the expansion bus in 16bit mode and restore
* 8 bit mode after the transaction.
*/
- *data->cs0_cfg &= ~(0x01);
- udelay(100);
+ if (dev->id[ATA_ID_FIELD_VALID] & (1 << 1)){
+ pio_mask = dev->id[ATA_ID_PIO_MODES] & 0x03;
+ if (pio_mask & (1 << 1)){
+ pio_mask = 4;
+ }else{
+ pio_mask = 3;
+ }
+ }else{
+ pio_mask = (dev->id[ATA_ID_OLD_PIO_MODES] >> 8);
+ }
+ switch (pio_mask){
+ case 0:
+ *data->cs0_cfg = 0xa9643c42;
+ break;
+ case 1:
+ *data->cs0_cfg = 0x85033c42;
+ break;
+ case 2:
+ *data->cs0_cfg = 0x80b23c42;
+ break;
+ case 3:
+ *data->cs0_cfg = 0x80823c42;
+ break;
+ case 4:
+ *data->cs0_cfg = 0x80403c42;
+ break;
+ }
+ udelay(5);
/* Transfer multiple of 2 bytes */
if (rw == READ)
@@ -79,8 +148,24 @@ static unsigned int ixp4xx_mmio_data_xfe
words++;
}
- udelay(100);
- *data->cs0_cfg |= 0x01;
+ udelay(5);
+ switch (pio_mask){
+ case 0:
+ *data->cs0_cfg = 0x8a473c03;
+ break;
+ case 1:
+ *data->cs0_cfg = 0x86433c03;
+ break;
+ case 2:
+ *data->cs0_cfg = 0x82413c03;
+ break;
+ case 3:
+ *data->cs0_cfg = 0x80823c03;
+ break;
+ case 4:
+ *data->cs0_cfg = 0x80403c03;
+ break;
+ }
return words << 1;
}
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