diff options
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/ixp4xx/patches-2.6.30/312-ixp4xx_pata_optimization.patch | 86 |
1 files changed, 40 insertions, 46 deletions
diff --git a/target/linux/ixp4xx/patches-2.6.30/312-ixp4xx_pata_optimization.patch b/target/linux/ixp4xx/patches-2.6.30/312-ixp4xx_pata_optimization.patch index cba130525c..3bf1b74976 100644 --- a/target/linux/ixp4xx/patches-2.6.30/312-ixp4xx_pata_optimization.patch +++ b/target/linux/ixp4xx/patches-2.6.30/312-ixp4xx_pata_optimization.patch @@ -1,6 +1,6 @@ --- a/drivers/ata/pata_ixp4xx_cf.c +++ b/drivers/ata/pata_ixp4xx_cf.c -@@ -24,18 +24,61 @@ +@@ -24,16 +24,58 @@ #include <scsi/scsi_host.h> #define DRV_NAME "pata_ixp4xx_cf" @@ -9,17 +9,14 @@ 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; - struct ata_device *dev; -- ata_for_each_dev(dev, link, ENABLED) { + 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; -- dev->xfer_shift = ATA_SHIFT_PIO; -- dev->flags |= ATA_DFLAG_PIO; -+ ata_link_for_each_dev(dev, link) { + if (dev->id[ATA_ID_FIELD_VALID] & (1 << 1)) { + pio_mask = dev->id[ATA_ID_PIO_MODES] & 0x03; + if (pio_mask & (1 << 1)) { @@ -30,46 +27,43 @@ + } 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; -+ } -+ if (ata_dev_enabled(dev)) { -+ dev->xfer_shift = ATA_SHIFT_PIO; -+ dev->flags |= ATA_DFLAG_PIO; ++ ++ 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; } - return 0; - } -@@ -46,6 +89,7 @@ static unsigned int ixp4xx_mmio_data_xfe +@@ -46,6 +88,7 @@ static unsigned int ixp4xx_mmio_data_xfe unsigned int i; unsigned int words = buflen >> 1; u16 *buf16 = (u16 *) buf; @@ -77,7 +71,7 @@ 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 +97,34 @@ static unsigned int ixp4xx_mmio_data_xfe +@@ -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. */ @@ -114,7 +108,7 @@ /* Transfer multiple of 2 bytes */ if (rw == READ) -@@ -79,8 +149,24 @@ static unsigned int ixp4xx_mmio_data_xfe +@@ -79,8 +148,24 @@ static unsigned int ixp4xx_mmio_data_xfe words++; } |