1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
--- a/drivers/ata/pata_ixp4xx_cf.c
+++ b/drivers/ata/pata_ixp4xx_cf.c
@@ -24,16 +24,58 @@
#include <scsi/scsi_host.h>
#define DRV_NAME "pata_ixp4xx_cf"
-#define DRV_VERSION "0.2"
+#define DRV_VERSION "0.3"
static int ixp4xx_set_mode(struct ata_link *link, struct ata_device **error)
{
+ struct ixp4xx_pata_data *data = link->ap->host->dev->platform_data;
+ unsigned int pio_mask;
struct ata_device *dev;
ata_for_each_dev(dev, link, ENABLED) {
- ata_dev_info(dev, "configured for PIO0\n");
- dev->pio_mode = XFER_PIO_0;
- dev->xfer_mode = XFER_PIO_0;
+ if (dev->id[ATA_ID_FIELD_VALID] & (1 << 1)) {
+ pio_mask = dev->id[ATA_ID_PIO_MODES] & 0x03;
+ if (pio_mask & (1 << 1)) {
+ pio_mask = 4;
+ } else {
+ pio_mask = 3;
+ }
+ } else {
+ pio_mask = (dev->id[ATA_ID_OLD_PIO_MODES] >> 8);
+ }
+
+ switch (pio_mask){
+ case 0:
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
+ dev->pio_mode = XFER_PIO_0;
+ dev->xfer_mode = XFER_PIO_0;
+ *data->cs0_cfg = 0x8a473c03;
+ break;
+ case 1:
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO1\n");
+ dev->pio_mode = XFER_PIO_1;
+ dev->xfer_mode = XFER_PIO_1;
+ *data->cs0_cfg = 0x86433c03;
+ break;
+ case 2:
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO2\n");
+ dev->pio_mode = XFER_PIO_2;
+ dev->xfer_mode = XFER_PIO_2;
+ *data->cs0_cfg = 0x82413c03;
+ break;
+ case 3:
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO3\n");
+ dev->pio_mode = XFER_PIO_3;
+ dev->xfer_mode = XFER_PIO_3;
+ *data->cs0_cfg = 0x80823c03;
+ break;
+ case 4:
+ ata_dev_printk(dev, KERN_INFO, "configured for PIO4\n");
+ dev->pio_mode = XFER_PIO_4;
+ dev->xfer_mode = XFER_PIO_4;
+ *data->cs0_cfg = 0x80403c03;
+ break;
+ }
dev->xfer_shift = ATA_SHIFT_PIO;
dev->flags |= ATA_DFLAG_PIO;
}
@@ -46,6 +88,7 @@ static unsigned int ixp4xx_mmio_data_xfe
unsigned int i;
unsigned int words = buflen >> 1;
u16 *buf16 = (u16 *) buf;
+ unsigned int pio_mask;
struct ata_port *ap = dev->link->ap;
void __iomem *mmio = ap->ioaddr.data_addr;
struct ixp4xx_pata_data *data = ap->host->dev->platform_data;
@@ -53,8 +96,34 @@ static unsigned int ixp4xx_mmio_data_xfe
/* set the expansion bus in 16bit mode and restore
* 8 bit mode after the transaction.
*/
- *data->cs0_cfg &= ~(0x01);
- udelay(100);
+ if (dev->id[ATA_ID_FIELD_VALID] & (1 << 1)){
+ pio_mask = dev->id[ATA_ID_PIO_MODES] & 0x03;
+ if (pio_mask & (1 << 1)){
+ pio_mask = 4;
+ }else{
+ pio_mask = 3;
+ }
+ }else{
+ pio_mask = (dev->id[ATA_ID_OLD_PIO_MODES] >> 8);
+ }
+ switch (pio_mask){
+ case 0:
+ *data->cs0_cfg = 0xa9643c42;
+ break;
+ case 1:
+ *data->cs0_cfg = 0x85033c42;
+ break;
+ case 2:
+ *data->cs0_cfg = 0x80b23c42;
+ break;
+ case 3:
+ *data->cs0_cfg = 0x80823c42;
+ break;
+ case 4:
+ *data->cs0_cfg = 0x80403c42;
+ break;
+ }
+ udelay(5);
/* Transfer multiple of 2 bytes */
if (rw == READ)
@@ -79,8 +148,24 @@ static unsigned int ixp4xx_mmio_data_xfe
words++;
}
- udelay(100);
- *data->cs0_cfg |= 0x01;
+ udelay(5);
+ switch (pio_mask){
+ case 0:
+ *data->cs0_cfg = 0x8a473c03;
+ break;
+ case 1:
+ *data->cs0_cfg = 0x86433c03;
+ break;
+ case 2:
+ *data->cs0_cfg = 0x82413c03;
+ break;
+ case 3:
+ *data->cs0_cfg = 0x80823c03;
+ break;
+ case 4:
+ *data->cs0_cfg = 0x80403c03;
+ break;
+ }
return words << 1;
}
|
