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authorMikael Pettersson <mikpe@it.uu.se>2007-01-09 09:50:27 (GMT)
committerJeff Garzik <jeff@garzik.org>2007-02-09 22:39:29 (GMT)
commit870ae337d568e8633ec30ca6f6afb7b58a558ba3 (patch)
treee846c14922310b6a30b491bdc07cf3810376eeb1 /drivers
parent7a44e910f43cbb5186e7242f4c32b3a5d2fb6666 (diff)
downloadlinux-fsl-qoriq-870ae337d568e8633ec30ca6f6afb7b58a558ba3.tar.xz
sata_promise: TX2plus PATA support
This patch implements a simple way of setting up per-port flags on the SATA+PATA Promise TX2plus chips, which is a prerequisite for supporting the PATA port on those chips. It is based on the observation that ap->flags isn't really used until after ->port_start() has been invoked. So it places the "exceptional" per-port flags array in the driver's private host structure, and uses it in ->port_start() to finalise the port's flags. This patch obsoletes the #promise-sata-pata branch included in the #all branch. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ata/sata_promise.c27
1 files changed, 22 insertions, 5 deletions
diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c
index f055874..6ab0574 100644
--- a/drivers/ata/sata_promise.c
+++ b/drivers/ata/sata_promise.c
@@ -92,6 +92,7 @@ struct pdc_port_priv {
struct pdc_host_priv {
unsigned long flags;
+ unsigned long port_flags[ATA_MAX_PORTS];
};
static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg);
@@ -183,7 +184,7 @@ static const struct ata_port_info pdc_port_info[] = {
/* board_2037x */
{
.sht = &pdc_ata_sht,
- .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
+ .flags = PDC_COMMON_FLAGS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
@@ -213,7 +214,7 @@ static const struct ata_port_info pdc_port_info[] = {
/* board_2057x */
{
.sht = &pdc_ata_sht,
- .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
+ .flags = PDC_COMMON_FLAGS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
@@ -271,6 +272,11 @@ static int pdc_port_start(struct ata_port *ap)
struct pdc_port_priv *pp;
int rc;
+ /* fix up port flags and cable type for SATA+PATA chips */
+ ap->flags |= hp->port_flags[ap->port_no];
+ if (ap->flags & ATA_FLAG_SATA)
+ ap->cbl = ATA_CBL_SATA;
+
rc = ata_port_start(ap);
if (rc)
return rc;
@@ -377,7 +383,7 @@ static void pdc_pata_phy_reset(struct ata_port *ap)
static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg)
{
- if (sc_reg > SCR_CONTROL)
+ if (sc_reg > SCR_CONTROL || ap->cbl != ATA_CBL_SATA)
return 0xffffffffU;
return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
}
@@ -386,7 +392,7 @@ static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg)
static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg,
u32 val)
{
- if (sc_reg > SCR_CONTROL)
+ if (sc_reg > SCR_CONTROL || ap->cbl != ATA_CBL_SATA)
return;
writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
}
@@ -740,6 +746,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
unsigned int board_idx = (unsigned int) ent->driver_data;
int pci_dev_busy = 0;
int rc;
+ u8 tmp;
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
@@ -820,7 +827,17 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
hp->flags |= PDC_FLAG_GEN_II;
/* Fall through */
case board_2037x:
- probe_ent->n_ports = 2;
+ /* TX2plus boards also have a PATA port */
+ tmp = readb(mmio_base + PDC_FLASH_CTL+1);
+ if (!(tmp & 0x80)) {
+ probe_ent->n_ports = 3;
+ pdc_ata_setup_port(&probe_ent->port[2], base + 0x300);
+ hp->port_flags[2] = ATA_FLAG_SLAVE_POSS;
+ printk(KERN_INFO DRV_NAME " PATA port found\n");
+ } else
+ probe_ent->n_ports = 2;
+ hp->port_flags[0] = ATA_FLAG_SATA;
+ hp->port_flags[1] = ATA_FLAG_SATA;
break;
case board_20619:
probe_ent->n_ports = 4;