openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

[PATCH] ata_piix: strip now unneded MAP related stuff 

Now that PCS isn't used for device detection anymore...

* esb_sata is identical to ich5_sata
* no reason to know present_shift
* no reason to store map_db in host private area

The MAP table itself is left because it can be used for SCR access.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2006-11-10 18:08:10 +09:00 committed by Jeff Garzik
parent 228c1590be
commit 5e56a37c37
1 changed files with 10 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
drivers/ata/ata_piix.c
View File

@ -125,11 +125,10 @@ enum {
ich_pata_100 = 3, /* ICH up to UDMA 100 */
ich_pata_133 = 4, /* ICH up to UDMA 133 */
ich5_sata = 5,
esb_sata = 6,
ich6_sata = 7,
ich6_sata_ahci = 8,
ich6m_sata_ahci = 9,
ich8_sata_ahci = 10,
ich6_sata = 6,
ich6_sata_ahci = 7,
ich6m_sata_ahci = 8,
ich8_sata_ahci = 9,
/* constants for mapping table */
P0 = 0, /* port 0 */
@ -146,13 +145,11 @@ enum {
struct piix_map_db {
const u32 mask;
const u16 port_enable;
const int present_shift;
const int map[][4];
};
struct piix_host_priv {
const int *map;
const struct piix_map_db *map_db;
};
static int piix_init_one (struct pci_dev *pdev,
@ -217,9 +214,9 @@ static const struct pci_device_id piix_pci_tbl[] = {
/* 82801EB (ICH5) */
{ 0x8086, 0x24df, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata },
/* 6300ESB (ICH5 variant with broken PCS present bits) */
{ 0x8086, 0x25a3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, esb_sata },
{ 0x8086, 0x25a3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata },
/* 6300ESB pretending RAID */
{ 0x8086, 0x25b0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, esb_sata },
{ 0x8086, 0x25b0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata },
/* 82801FB/FW (ICH6/ICH6W) */
{ 0x8086, 0x2651, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata },
/* 82801FR/FRW (ICH6R/ICH6RW) */
@ -370,7 +367,6 @@ static const struct ata_port_operations piix_sata_ops = {
static const struct piix_map_db ich5_map_db = {
.mask = 0x7,
.port_enable = 0x3,
.present_shift = 4,
.map = {
/* PM PS SM SS MAP */
{ P0, NA, P1, NA }, /* 000b */
@ -387,7 +383,6 @@ static const struct piix_map_db ich5_map_db = {
static const struct piix_map_db ich6_map_db = {
.mask = 0x3,
.port_enable = 0xf,
.present_shift = 4,
.map = {
/* PM PS SM SS MAP */
{ P0, P2, P1, P3 }, /* 00b */
@ -400,7 +395,6 @@ static const struct piix_map_db ich6_map_db = {
static const struct piix_map_db ich6m_map_db = {
.mask = 0x3,
.port_enable = 0x5,
.present_shift = 4,
/* Map 01b isn't specified in the doc but some notebooks use
* it anyway. MAP 01b have been spotted on both ICH6M and
@ -418,7 +412,6 @@ static const struct piix_map_db ich6m_map_db = {
static const struct piix_map_db ich8_map_db = {
.mask = 0x3,
.port_enable = 0x3,
.present_shift = 8,
.map = {
/* PM PS SM SS MAP */
{ P0, P2, P1, P3 }, /* 00b (hardwired when in AHCI) */
@ -430,7 +423,6 @@ static const struct piix_map_db ich8_map_db = {
static const struct piix_map_db *piix_map_db_table[] = {
[ich5_sata] = &ich5_map_db,
[esb_sata] = &ich5_map_db,
[ich6_sata] = &ich6_map_db,
[ich6_sata_ahci] = &ich6_map_db,
[ich6m_sata_ahci] = &ich6m_map_db,
@ -497,17 +489,7 @@ static struct ata_port_info piix_port_info[] = {
.port_ops = &piix_sata_ops,
},
/* i6300esb_sata: 6 */
{
.sht = &piix_sht,
.flags = PIIX_SATA_FLAGS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = 0x7f, /* udma0-6 */
.port_ops = &piix_sata_ops,
},
/* ich6_sata: 7 */
/* ich6_sata: 6 */
{
.sht = &piix_sht,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR,
@ -517,7 +499,7 @@ static struct ata_port_info piix_port_info[] = {
.port_ops = &piix_sata_ops,
},
/* ich6_sata_ahci: 8 */
/* ich6_sata_ahci: 7 */
{
.sht = &piix_sht,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
@ -528,7 +510,7 @@ static struct ata_port_info piix_port_info[] = {
.port_ops = &piix_sata_ops,
},
/* ich6m_sata_ahci: 9 */
/* ich6m_sata_ahci: 8 */
{
.sht = &piix_sht,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
@ -539,7 +521,7 @@ static struct ata_port_info piix_port_info[] = {
.port_ops = &piix_sata_ops,
},
/* ich8_sata_ahci: 10 */
/* ich8_sata_ahci: 9 */
{
.sht = &piix_sht,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
@ -1046,7 +1028,6 @@ static void __devinit piix_init_sata_map(struct pci_dev *pdev,
"invalid MAP value %u\n", map_value);
hpriv->map = map;
hpriv->map_db = map_db;
}
/**