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-rw-r--r--drivers/ata/pata_via.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index e4c71f76bd55..708dfc0c716b 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -60,6 +60,7 @@
60#include <linux/delay.h> 60#include <linux/delay.h>
61#include <scsi/scsi_host.h> 61#include <scsi/scsi_host.h>
62#include <linux/libata.h> 62#include <linux/libata.h>
63#include <linux/dmi.h>
63 64
64#define DRV_NAME "pata_via" 65#define DRV_NAME "pata_via"
65#define DRV_VERSION "0.3.1" 66#define DRV_VERSION "0.3.1"
@@ -122,6 +123,31 @@ static const struct via_isa_bridge {
122 { NULL } 123 { NULL }
123}; 124};
124 125
126
127/*
128 * Cable special cases
129 */
130
131static struct dmi_system_id cable_dmi_table[] = {
132 {
133 .ident = "Acer Ferrari 3400",
134 .matches = {
135 DMI_MATCH(DMI_BOARD_VENDOR, "Acer,Inc."),
136 DMI_MATCH(DMI_BOARD_NAME, "Ferrari 3400"),
137 },
138 },
139 { }
140};
141
142static int via_cable_override(struct pci_dev *pdev)
143{
144 /* Systems by DMI */
145 if (dmi_check_system(cable_dmi_table))
146 return 1;
147 return 0;
148}
149
150
125/** 151/**
126 * via_cable_detect - cable detection 152 * via_cable_detect - cable detection
127 * @ap: ATA port 153 * @ap: ATA port
@@ -139,6 +165,9 @@ static int via_cable_detect(struct ata_port *ap) {
139 struct pci_dev *pdev = to_pci_dev(ap->host->dev); 165 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
140 u32 ata66; 166 u32 ata66;
141 167
168 if (via_cable_override(pdev))
169 return ATA_CBL_PATA40_SHORT;
170
142 /* Early chips are 40 wire */ 171 /* Early chips are 40 wire */
143 if ((config->flags & VIA_UDMA) < VIA_UDMA_66) 172 if ((config->flags & VIA_UDMA) < VIA_UDMA_66)
144 return ATA_CBL_PATA40; 173 return ATA_CBL_PATA40;