[PATCH 8/8] ide: add ->cable_detect method to ide_hwif_t

From: Bartlomiej Zolnierkiewicz
Date: Sun Jan 06 2008 - 11:53:38 EST

* Add ->cable_detect method to ide_hwif_t.

* Call the new method in ide_init_port() if:
- the host supports UDMA modes > UDMA2 ('hwif->ultra_mask & 78')
- DMA initialization was successful (if hwif->dma_base is not set
ide_init_port() sets hwif->ultra_mask to zero)
- "idex=ata66" is not used ('hwif->cbl != ATA_CBL_PATA40_SHORT')

* Convert PCI host drivers to use ->cable_detect method.

While at it:

* Factor out cable detection to separate functions (if not already done).

* hpt366.c/it8213.c/slc90e66.c:
- don't check cable type if "idex=ata66" is used

* pdc202xx_new.c:
- add __devinit tag to pdcnew_cable_detect()

* pdc202xx_old.c:
- rename pdc202xx_old_cable_detect() to pdc2026x_old_cable_detect()
- add __devinit tag to pdc2026x_old_cable_detect()

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
---
-105 bytes
drivers/ide/ide-probe.c | 5 ++
drivers/ide/pci/aec62xx.c | 25 +++++-------
drivers/ide/pci/alim15x3.c | 5 --
drivers/ide/pci/amd74xx.c | 18 ++++----
drivers/ide/pci/atiixp.c | 6 --
drivers/ide/pci/cmd64x.c | 5 --
drivers/ide/pci/cs5535.c | 6 --
drivers/ide/pci/hpt366.c | 84 ++++++++++++++++++++++-------------------
drivers/ide/pci/it8213.c | 21 +++++-----
drivers/ide/pci/it821x.c | 5 --
drivers/ide/pci/jmicron.c | 6 --
drivers/ide/pci/pdc202xx_new.c | 8 ---
drivers/ide/pci/pdc202xx_old.c | 10 ++--
drivers/ide/pci/piix.c | 7 ---
drivers/ide/pci/scc_pata.c | 3 -
drivers/ide/pci/serverworks.c | 9 ----
drivers/ide/pci/siimage.c | 5 --
drivers/ide/pci/sis5513.c | 5 --
drivers/ide/pci/slc90e66.c | 19 +++++----
drivers/ide/pci/tc86c001.c | 24 +++++++----
drivers/ide/pci/via82cxxx.c | 6 --
include/linux/ide.h | 2
22 files changed, 137 insertions(+), 147 deletions(-)

Index: b/drivers/ide/ide-probe.c
===================================================================
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1343,6 +1343,11 @@ static void ide_init_port(ide_hwif_t *hw
/* call chipset specific routine for each enabled port */
if (d->init_hwif)
d->init_hwif(hwif);
+
+ if (hwif->cable_detect && (hwif->ultra_mask & 0x78)) {
+ if (hwif->cbl != ATA_CBL_PATA40_SHORT)
+ hwif->cbl = hwif->cable_detect(hwif);
+ }
}

int ide_device_add_all(u8 idx[MAX_HWIFS], const struct ide_port_info *d)
Index: b/drivers/ide/pci/aec62xx.c
===================================================================
--- a/drivers/ide/pci/aec62xx.c
+++ b/drivers/ide/pci/aec62xx.c
@@ -166,6 +166,16 @@ static unsigned int __devinit init_chips
return dev->irq;
}

+static u8 __devinit atp86x_cable_detect(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+ u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01;
+
+ pci_read_config_byte(dev, 0x49, &ata66);
+
+ return (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
@@ -174,21 +184,10 @@ static void __devinit init_hwif_aec62xx(

if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
hwif->set_dma_mode = &aec6210_set_mode;
- else
+ else {
hwif->set_dma_mode = &aec6260_set_mode;

- if (hwif->dma_base == 0)
- return;
-
- if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
- return;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
- u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01;
-
- pci_read_config_byte(dev, 0x49, &ata66);
-
- hwif->cbl = (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+ hwif->cable_detect = atp86x_cable_detect;
}
}

Index: b/drivers/ide/pci/alim15x3.c
===================================================================
--- a/drivers/ide/pci/alim15x3.c
+++ b/drivers/ide/pci/alim15x3.c
@@ -666,13 +666,12 @@ static void __devinit init_hwif_common_a
hwif->set_dma_mode = &ali_set_dma_mode;
hwif->udma_filter = &ali_udma_filter;

+ hwif->cable_detect = ata66_ali15x3;
+
if (hwif->dma_base == 0)
return;

hwif->dma_setup = &ali15x3_dma_setup;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_ali15x3(hwif);
}

/**
Index: b/drivers/ide/pci/amd74xx.c
===================================================================
--- a/drivers/ide/pci/amd74xx.c
+++ b/drivers/ide/pci/amd74xx.c
@@ -199,6 +199,14 @@ static unsigned int __devinit init_chips
return dev->irq;
}

+static u8 __devinit amd_cable_detect(ide_hwif_t *hwif)
+{
+ if ((amd_80w >> hwif->channel) & 1)
+ return ATA_CBL_PATA80;
+ else
+ return ATA_CBL_PATA40;
+}
+
static void __devinit init_hwif_amd74xx(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
@@ -209,15 +217,7 @@ static void __devinit init_hwif_amd74xx(
hwif->set_pio_mode = &amd_set_pio_mode;
hwif->set_dma_mode = &amd_set_drive;

- if (!hwif->dma_base)
- return;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
- if ((amd_80w >> hwif->channel) & 1)
- hwif->cbl = ATA_CBL_PATA80;
- else
- hwif->cbl = ATA_CBL_PATA40;
- }
+ hwif->cable_detect = amd_cable_detect;
}

#define IDE_HFLAGS_AMD \
Index: b/drivers/ide/pci/atiixp.c
===================================================================
--- a/drivers/ide/pci/atiixp.c
+++ b/drivers/ide/pci/atiixp.c
@@ -147,11 +147,7 @@ static void __devinit init_hwif_atiixp(i
hwif->set_pio_mode = &atiixp_set_pio_mode;
hwif->set_dma_mode = &atiixp_set_dma_mode;

- if (!hwif->dma_base)
- return;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = atiixp_cable_detect(hwif);
+ hwif->cable_detect = atiixp_cable_detect;
}

static const struct ide_port_info atiixp_pci_info[] __devinitdata = {
Index: b/drivers/ide/pci/cmd64x.c
===================================================================
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -393,6 +393,8 @@ static void __devinit init_hwif_cmd64x(i
hwif->set_pio_mode = &cmd64x_set_pio_mode;
hwif->set_dma_mode = &cmd64x_set_dma_mode;

+ hwif->cable_detect = ata66_cmd64x;
+
if (!hwif->dma_base)
return;

@@ -411,9 +413,6 @@ static void __devinit init_hwif_cmd64x(i
if (dev->device == PCI_DEVICE_ID_CMD_646 && dev->revision < 5)
hwif->ultra_mask = 0x00;

- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_cmd64x(hwif);
-
switch (dev->device) {
case PCI_DEVICE_ID_CMD_648:
case PCI_DEVICE_ID_CMD_649:
Index: b/drivers/ide/pci/cs5535.c
===================================================================
--- a/drivers/ide/pci/cs5535.c
+++ b/drivers/ide/pci/cs5535.c
@@ -179,11 +179,7 @@ static void __devinit init_hwif_cs5535(i
hwif->set_pio_mode = &cs5535_set_pio_mode;
hwif->set_dma_mode = &cs5535_set_dma_mode;

- if (hwif->dma_base == 0)
- return;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = cs5535_cable_detect(hwif);
+ hwif->cable_detect = cs5535_cable_detect;
}

static const struct ide_port_info cs5535_chipset __devinitdata = {
Index: b/drivers/ide/pci/hpt366.c
===================================================================
--- a/drivers/ide/pci/hpt366.c
+++ b/drivers/ide/pci/hpt366.c
@@ -1279,12 +1279,55 @@ static unsigned int __devinit init_chips
return dev->irq;
}

+static u8 __devinit hpt3xx_cable_detect(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+ struct hpt_info *info = pci_get_drvdata(dev);
+ u8 chip_type = info->chip_type;
+ u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02;
+
+ /*
+ * The HPT37x uses the CBLID pins as outputs for MA15/MA16
+ * address lines to access an external EEPROM. To read valid
+ * cable detect state the pins must be enabled as inputs.
+ */
+ if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
+ /*
+ * HPT374 PCI function 1
+ * - set bit 15 of reg 0x52 to enable TCBLID as input
+ * - set bit 15 of reg 0x56 to enable FCBLID as input
+ */
+ u8 mcr_addr = hwif->select_data + 2;
+ u16 mcr;
+
+ pci_read_config_word(dev, mcr_addr, &mcr);
+ pci_write_config_word(dev, mcr_addr, (mcr | 0x8000));
+ /* now read cable id register */
+ pci_read_config_byte(dev, 0x5a, &scr1);
+ pci_write_config_word(dev, mcr_addr, mcr);
+ } else if (chip_type >= HPT370) {
+ /*
+ * HPT370/372 and 374 pcifn 0
+ * - clear bit 0 of reg 0x5b to enable P/SCBLID as inputs
+ */
+ u8 scr2 = 0;
+
+ pci_read_config_byte(dev, 0x5b, &scr2);
+ pci_write_config_byte(dev, 0x5b, (scr2 & ~1));
+ /* now read cable id register */
+ pci_read_config_byte(dev, 0x5a, &scr1);
+ pci_write_config_byte(dev, 0x5b, scr2);
+ } else
+ pci_read_config_byte(dev, 0x5a, &scr1);
+
+ return (scr1 & ata66) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct hpt_info *info = pci_get_drvdata(dev);
int serialize = HPT_SERIALIZE_IO;
- u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02;
u8 chip_type = info->chip_type;
u8 new_mcr, old_mcr = 0;

@@ -1301,6 +1344,8 @@ static void __devinit init_hwif_hpt366(i
hwif->udma_filter = &hpt3xx_udma_filter;
hwif->mdma_filter = &hpt3xx_mdma_filter;

+ hwif->cable_detect = hpt3xx_cable_detect;
+
/*
* HPT3xxN chips have some complications:
*
@@ -1346,43 +1391,6 @@ static void __devinit init_hwif_hpt366(i
if (hwif->dma_base == 0)
return;

- /*
- * The HPT37x uses the CBLID pins as outputs for MA15/MA16
- * address lines to access an external EEPROM. To read valid
- * cable detect state the pins must be enabled as inputs.
- */
- if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
- /*
- * HPT374 PCI function 1
- * - set bit 15 of reg 0x52 to enable TCBLID as input
- * - set bit 15 of reg 0x56 to enable FCBLID as input
- */
- u8 mcr_addr = hwif->select_data + 2;
- u16 mcr;
-
- pci_read_config_word (dev, mcr_addr, &mcr);
- pci_write_config_word(dev, mcr_addr, (mcr | 0x8000));
- /* now read cable id register */
- pci_read_config_byte (dev, 0x5a, &scr1);
- pci_write_config_word(dev, mcr_addr, mcr);
- } else if (chip_type >= HPT370) {
- /*
- * HPT370/372 and 374 pcifn 0
- * - clear bit 0 of reg 0x5b to enable P/SCBLID as inputs
- */
- u8 scr2 = 0;
-
- pci_read_config_byte (dev, 0x5b, &scr2);
- pci_write_config_byte(dev, 0x5b, (scr2 & ~1));
- /* now read cable id register */
- pci_read_config_byte (dev, 0x5a, &scr1);
- pci_write_config_byte(dev, 0x5b, scr2);
- } else
- pci_read_config_byte (dev, 0x5a, &scr1);
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = (scr1 & ata66) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
-
if (chip_type >= HPT374) {
hwif->ide_dma_test_irq = &hpt374_ide_dma_test_irq;
hwif->ide_dma_end = &hpt374_ide_dma_end;
Index: b/drivers/ide/pci/it8213.c
===================================================================
--- a/drivers/ide/pci/it8213.c
+++ b/drivers/ide/pci/it8213.c
@@ -143,6 +143,16 @@ static void it8213_set_dma_mode(ide_driv
}
}

+static u8 __devinit it8213_cable_detect(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+ u8 reg42h = 0;
+
+ pci_read_config_byte(dev, 0x42, &reg42h);
+
+ return (reg42h & 0x02) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
/**
* init_hwif_it8213 - set up hwif structs
* @hwif: interface to set up
@@ -152,19 +162,10 @@ static void it8213_set_dma_mode(ide_driv

static void __devinit init_hwif_it8213(ide_hwif_t *hwif)
{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- u8 reg42h = 0;
-
hwif->set_dma_mode = &it8213_set_dma_mode;
hwif->set_pio_mode = &it8213_set_pio_mode;

- if (!hwif->dma_base)
- return;
-
- pci_read_config_byte(dev, 0x42, &reg42h);
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = (reg42h & 0x02) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+ hwif->cable_detect = it8213_cable_detect;
}


Index: b/drivers/ide/pci/it821x.c
===================================================================
--- a/drivers/ide/pci/it821x.c
+++ b/drivers/ide/pci/it821x.c
@@ -579,14 +579,13 @@ static void __devinit init_hwif_it821x(i
} else
hwif->host_flags |= IDE_HFLAG_NO_SET_MODE;

+ hwif->cable_detect = ata66_it821x;
+
if (hwif->dma_base == 0)
return;

hwif->ultra_mask = ATA_UDMA6;
hwif->mwdma_mask = ATA_MWDMA2;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_it821x(hwif);
}

static void __devinit it8212_disable_raid(struct pci_dev *dev)
Index: b/drivers/ide/pci/jmicron.c
===================================================================
--- a/drivers/ide/pci/jmicron.c
+++ b/drivers/ide/pci/jmicron.c
@@ -111,11 +111,7 @@ static void __devinit init_hwif_jmicron(
hwif->set_pio_mode = &jmicron_set_pio_mode;
hwif->set_dma_mode = &jmicron_set_dma_mode;

- if (hwif->dma_base == 0)
- return;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_jmicron(hwif);
+ hwif->cable_detect = ata66_jmicron;
}

static const struct ide_port_info jmicron_chipset __devinitdata = {
Index: b/drivers/ide/pci/pdc202xx_new.c
===================================================================
--- a/drivers/ide/pci/pdc202xx_new.c
+++ b/drivers/ide/pci/pdc202xx_new.c
@@ -197,7 +197,7 @@ static void pdcnew_set_pio_mode(ide_driv
}
}

-static u8 pdcnew_cable_detect(ide_hwif_t *hwif)
+static u8 __devinit pdcnew_cable_detect(ide_hwif_t *hwif)
{
if (get_indexed_reg(hwif, 0x0b) & 0x04)
return ATA_CBL_PATA40;
@@ -456,11 +456,7 @@ static void __devinit init_hwif_pdc202ne
hwif->quirkproc = &pdcnew_quirkproc;
hwif->resetproc = &pdcnew_reset;

- if (hwif->dma_base == 0)
- return;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = pdcnew_cable_detect(hwif);
+ hwif->cable_detect = pdcnew_cable_detect;
}

static struct pci_dev * __devinit pdc20270_get_dev2(struct pci_dev *dev)
Index: b/drivers/ide/pci/pdc202xx_old.c
===================================================================
--- a/drivers/ide/pci/pdc202xx_old.c
+++ b/drivers/ide/pci/pdc202xx_old.c
@@ -140,7 +140,7 @@ static void pdc202xx_set_pio_mode(ide_dr
pdc202xx_set_mode(drive, XFER_PIO_0 + pio);
}

-static u8 pdc202xx_old_cable_detect (ide_hwif_t *hwif)
+static u8 __devinit pdc2026x_old_cable_detect(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
u16 CIS = 0, mask = (hwif->channel) ? (1<<11) : (1<<10);
@@ -311,9 +311,12 @@ static void __devinit init_hwif_pdc202xx

hwif->quirkproc = &pdc202xx_quirkproc;

- if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
+ if (dev->device != PCI_DEVICE_ID_PROMISE_20246) {
hwif->resetproc = &pdc202xx_reset;

+ hwif->cable_detect = pdc2026x_old_cable_detect;
+ }
+
if (hwif->dma_base == 0)
return;

@@ -321,9 +324,6 @@ static void __devinit init_hwif_pdc202xx
hwif->dma_timeout = &pdc202xx_dma_timeout;

if (dev->device != PCI_DEVICE_ID_PROMISE_20246) {
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = pdc202xx_old_cable_detect(hwif);
-
hwif->dma_start = &pdc202xx_old_ide_dma_start;
hwif->ide_dma_end = &pdc202xx_old_ide_dma_end;
}
Index: b/drivers/ide/pci/piix.c
===================================================================
--- a/drivers/ide/pci/piix.c
+++ b/drivers/ide/pci/piix.c
@@ -290,14 +290,11 @@ static void __devinit init_hwif_piix(ide
hwif->set_pio_mode = &piix_set_pio_mode;
hwif->set_dma_mode = &piix_set_dma_mode;

+ hwif->cable_detect = piix_cable_detect;
+
if (!hwif->dma_base)
return;

- if (hwif->ultra_mask & 0x78) {
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = piix_cable_detect(hwif);
- }
-
if (no_piix_dma)
hwif->ultra_mask = hwif->mwdma_mask = hwif->swdma_mask = 0;
}
Index: b/drivers/ide/pci/scc_pata.c
===================================================================
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -683,8 +683,7 @@ static void __devinit init_hwif_scc(ide_
else
hwif->ultra_mask = ATA_UDMA5; /* 100MHz */

- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = scc_cable_detect(hwif);
+ hwif->cable_detect = scc_cable_detect;
}

#define DECLARE_SCC_DEV(name_str) \
Index: b/drivers/ide/pci/serverworks.c
===================================================================
--- a/drivers/ide/pci/serverworks.c
+++ b/drivers/ide/pci/serverworks.c
@@ -346,13 +346,8 @@ static void __devinit init_hwif_svwks (i
hwif->set_dma_mode = &svwks_set_dma_mode;
hwif->udma_filter = &svwks_udma_filter;

- if (!hwif->dma_base)
- return;
-
- if (dev->device != PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_svwks(hwif);
- }
+ if (dev->device != PCI_DEVICE_ID_SERVERWORKS_OSB4IDE)
+ hwif->cable_detect = ata66_svwks;
}

#define IDE_HFLAGS_SVWKS \
Index: b/drivers/ide/pci/siimage.c
===================================================================
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -827,15 +827,14 @@ static void __devinit init_hwif_siimage(
} else
hwif->udma_filter = &sil_pata_udma_filter;

+ hwif->cable_detect = ata66_siimage;
+
if (hwif->dma_base == 0)
return;

if (sata)
hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;

- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_siimage(hwif);
-
if (hwif->mmio) {
hwif->ide_dma_test_irq = &siimage_mmio_ide_dma_test_irq;
} else {
Index: b/drivers/ide/pci/sis5513.c
===================================================================
--- a/drivers/ide/pci/sis5513.c
+++ b/drivers/ide/pci/sis5513.c
@@ -565,13 +565,12 @@ static void __devinit init_hwif_sis5513
if (chipset_family >= ATA_133)
hwif->udma_filter = sis5513_ata133_udma_filter;

+ hwif->cable_detect = ata66_sis5513;
+
if (hwif->dma_base == 0)
return;

hwif->ultra_mask = udma_rates[chipset_family];
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_sis5513(hwif);
}

static const struct ide_port_info sis5513_chipset __devinitdata = {
Index: b/drivers/ide/pci/slc90e66.c
===================================================================
--- a/drivers/ide/pci/slc90e66.c
+++ b/drivers/ide/pci/slc90e66.c
@@ -118,23 +118,26 @@ static void slc90e66_set_dma_mode(ide_dr
}
}

-static void __devinit init_hwif_slc90e66 (ide_hwif_t *hwif)
+static u8 __devinit slc90e66_cable_detect(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
- u8 reg47 = 0;
- u8 mask = hwif->channel ? 0x01 : 0x02; /* bit0:Primary */
+ u8 reg47 = 0, mask = hwif->channel ? 0x01 : 0x02;

+ pci_read_config_byte(dev, 0x47, &reg47);
+
+ /* bit[0(1)]: 0:80, 1:40 */
+ return (reg47 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
+static void __devinit init_hwif_slc90e66(ide_hwif_t *hwif)
+{
hwif->set_pio_mode = &slc90e66_set_pio_mode;
hwif->set_dma_mode = &slc90e66_set_dma_mode;

- pci_read_config_byte(dev, 0x47, &reg47);
-
if (hwif->dma_base == 0)
return;

- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- /* bit[0(1)]: 0:80, 1:40 */
- hwif->cbl = (reg47 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+ hwif->cable_detect = slc90e66_cable_detect;
}

static const struct ide_port_info slc90e66_chipset __devinitdata = {
Index: b/drivers/ide/pci/tc86c001.c
===================================================================
--- a/drivers/ide/pci/tc86c001.c
+++ b/drivers/ide/pci/tc86c001.c
@@ -160,6 +160,19 @@ static int tc86c001_busproc(ide_drive_t
return 0;
}

+static u8 __devinit tc86c001_cable_detect(ide_hwif_t *hwif)
+{
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+ unsigned long sc_base = pci_resource_start(dev, 5);
+ u16 scr1 = inw(sc_base + 0x00);
+
+ /*
+ * System Control 1 Register bit 13 (PDIAGN):
+ * 0=80-pin cable, 1=40-pin cable
+ */
+ return (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
+}
+
static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
@@ -183,6 +196,8 @@ static void __devinit init_hwif_tc86c001

hwif->busproc = &tc86c001_busproc;

+ hwif->cable_detect = tc86c001_cable_detect;
+
if (!hwif->dma_base)
return;

@@ -196,15 +211,6 @@ static void __devinit init_hwif_tc86c001
hwif->rqsize = 0xffff;

hwif->dma_start = &tc86c001_dma_start;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
- /*
- * System Control 1 Register bit 13 (PDIAGN):
- * 0=80-pin cable, 1=40-pin cable
- */
- scr1 = inw(sc_base + 0x00);
- hwif->cbl = (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
- }
}

static unsigned int __devinit init_chipset_tc86c001(struct pci_dev *dev,
Index: b/drivers/ide/pci/via82cxxx.c
===================================================================
--- a/drivers/ide/pci/via82cxxx.c
+++ b/drivers/ide/pci/via82cxxx.c
@@ -424,11 +424,7 @@ static void __devinit init_hwif_via82cxx
hwif->set_pio_mode = &via_set_pio_mode;
hwif->set_dma_mode = &via_set_drive;

- if (!hwif->dma_base)
- return;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = via82cxxx_cable_detect(hwif);
+ hwif->cable_detect = via82cxxx_cable_detect;
}

static const struct ide_port_info via82cxxx_chipset __devinitdata = {
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -535,6 +535,8 @@ typedef struct hwif_s {
u8 (*mdma_filter)(ide_drive_t *);
u8 (*udma_filter)(ide_drive_t *);

+ u8 (*cable_detect)(struct hwif_s *);
+
void (*ata_input_data)(ide_drive_t *, void *, u32);
void (*ata_output_data)(ide_drive_t *, void *, u32);

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