Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8f73a6880183dd11b97d70e738cf82d15931d98b
Commit:     8f73a6880183dd11b97d70e738cf82d15931d98b
Parent:     3957df6160c90955979229b230cb5202e6a5ee2b
Author:     Jason Gaston <[EMAIL PROTECTED]>
AuthorDate: Thu Oct 11 16:05:15 2007 -0700
Committer:  Jeff Garzik <[EMAIL PROTECTED]>
CommitDate: Mon Oct 15 15:44:20 2007 -0400

    ata_piix: SATA 2port controller port map fix
    
    This patch adds a port map for ICH9 and ICH8 SATA controllers that have 
only 2 ports available in that mode.
    
    Signed-off-by:  Jason Gaston <[EMAIL PROTECTED]>
    Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
---
 drivers/ata/ata_piix.c |   35 ++++++++++++++++++++++++++++++-----
 1 files changed, 30 insertions(+), 5 deletions(-)

diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 9ce4aa9..3c6f43e 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -130,6 +130,7 @@ enum {
        ich8_sata_ahci          = 9,
        piix_pata_mwdma         = 10,   /* PIIX3 MWDMA only */
        tolapai_sata_ahci       = 11,
+       ich9_2port_sata         = 12,
 
        /* constants for mapping table */
        P0                      = 0,  /* port 0 */
@@ -238,19 +239,19 @@ static const struct pci_device_id piix_pci_tbl[] = {
        /* SATA Controller 1 IDE (ICH8) */
        { 0x8086, 0x2820, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
        /* SATA Controller 2 IDE (ICH8) */
-       { 0x8086, 0x2825, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
+       { 0x8086, 0x2825, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich9_2port_sata },
        /* Mobile SATA Controller IDE (ICH8M) */
        { 0x8086, 0x2828, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
        /* SATA Controller IDE (ICH9) */
        { 0x8086, 0x2920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
        /* SATA Controller IDE (ICH9) */
-       { 0x8086, 0x2921, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
+       { 0x8086, 0x2921, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich9_2port_sata },
        /* SATA Controller IDE (ICH9) */
-       { 0x8086, 0x2926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
+       { 0x8086, 0x2926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich9_2port_sata },
        /* SATA Controller IDE (ICH9M) */
-       { 0x8086, 0x2928, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
+       { 0x8086, 0x2928, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich9_2port_sata },
        /* SATA Controller IDE (ICH9M) */
-       { 0x8086, 0x292d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
+       { 0x8086, 0x292d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich9_2port_sata },
        /* SATA Controller IDE (ICH9M) */
        { 0x8086, 0x292e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_ahci },
        /* SATA Controller IDE (Tolapai) */
@@ -448,6 +449,18 @@ static const struct piix_map_db tolapai_map_db = {
        },
 };
 
+static const struct piix_map_db ich9_2port_map_db = {
+       .mask = 0x3,
+       .port_enable = 0x3,
+       .map = {
+               /* PM   PS   SM   SS       MAP */
+               {  P0,  NA,  P1,  NA }, /* 00b */
+               {  RV,  RV,  RV,  RV }, /* 01b */
+               {  RV,  RV,  RV,  RV }, /* 10b */
+               {  RV,  RV,  RV,  RV },
+       },
+};
+
 static const struct piix_map_db *piix_map_db_table[] = {
        [ich5_sata]             = &ich5_map_db,
        [ich6_sata]             = &ich6_map_db,
@@ -455,6 +468,7 @@ static const struct piix_map_db *piix_map_db_table[] = {
        [ich6m_sata_ahci]       = &ich6m_map_db,
        [ich8_sata_ahci]        = &ich8_map_db,
        [tolapai_sata_ahci]     = &tolapai_map_db,
+       [ich9_2port_sata]       = &ich9_2port_map_db,
 };
 
 static struct ata_port_info piix_port_info[] = {
@@ -570,6 +584,17 @@ static struct ata_port_info piix_port_info[] = {
                .udma_mask      = ATA_UDMA6,
                .port_ops       = &piix_sata_ops,
        },
+
+       [ich9_2port_sata] =
+       {
+               .sht            = &piix_sht,
+               .flags          = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
+                                 PIIX_FLAG_AHCI,
+               .pio_mask       = 0x1f, /* pio0-4 */
+               .mwdma_mask     = 0x07, /* mwdma0-2 */
+               .udma_mask      = ATA_UDMA6,
+               .port_ops       = &piix_sata_ops,
+       },
 };
 
 static struct pci_bits piix_enable_bits[] = {
-
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