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authorMikael Pettersson <mikpe@it.uu.se>2007-05-06 22:14:01 +0200
committerJeff Garzik <jeff@garzik.org>2007-05-09 20:15:46 -0400
commit5ac2fe57569c5fbbd4288e3e7fead332b4300ef0 (patch)
tree05b6f04dbec9c76a0cfb73a3124668d5cee1cc56
parent8ffcfd9d0dc735071379760c23317f15904f9056 (diff)
downloadop-kernel-dev-5ac2fe57569c5fbbd4288e3e7fead332b4300ef0.zip
op-kernel-dev-5ac2fe57569c5fbbd4288e3e7fead332b4300ef0.tar.gz
sata_promise: SATAII-150/300 TX4 port numbering fix
There is a known problem with sata_promise on SATAII-150/300 TX4 controller cards: it enumerates drives in an order that differs from the port numbers printed on the controller cards. However, Promise's BIOS and Linux driver both get the order right. I investigated Promise's Linux driver (v1.01.0.23), and found that it explicitly changes the mapping from logical port number to ATA engine MMIO address on the SATAII TX4 cards. It does this on all SATAII TX4 cards, without inspecting revision etc. The SATAII TX2plus cards continue to use the same mapping that was used for the first-generation chips. This patch updates sata_promise to use the new port number to ATA engine mapping on SATAII TX4 cards, which fixes the drive enumeration order problem on those cards. Tested on several 1st and 2nd generation TX2plus and TX4 chips. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org>
-rw-r--r--drivers/ata/sata_promise.c22
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c
index 753402e..3a7d9b5 100644
--- a/drivers/ata/sata_promise.c
+++ b/drivers/ata/sata_promise.c
@@ -45,7 +45,7 @@
#include "sata_promise.h"
#define DRV_NAME "sata_promise"
-#define DRV_VERSION "2.06"
+#define DRV_VERSION "2.07"
enum {
@@ -926,6 +926,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
struct ata_host *host;
void __iomem *base;
int n_ports, i, rc;
+ int is_sataii_tx4;
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
@@ -964,10 +965,23 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
}
host->iomap = pcim_iomap_table(pdev);
- for (i = 0; i < host->n_ports; i++)
+ is_sataii_tx4 = 0;
+ if ((pi->flags & (PDC_FLAG_GEN_II|PDC_FLAG_4_PORTS)) == (PDC_FLAG_GEN_II|PDC_FLAG_4_PORTS)) {
+ is_sataii_tx4 = 1;
+ dev_printk(KERN_INFO, &pdev->dev, "applying SATAII TX4 port numbering workaround\n");
+ }
+ for (i = 0; i < host->n_ports; i++) {
+ static const unsigned char sataii_tx4_port_remap[4] = { 3, 1, 0, 2};
+ int ata_nr;
+
+ ata_nr = i;
+ if (is_sataii_tx4)
+ ata_nr = sataii_tx4_port_remap[i];
+
pdc_ata_setup_port(host->ports[i],
- base + 0x200 + i * 0x80,
- base + 0x400 + i * 0x100);
+ base + 0x200 + ata_nr * 0x80,
+ base + 0x400 + ata_nr * 0x100);
+ }
/* initialize adapter */
pdc_host_init(host);
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