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
|
/*
* This file is part of the LinuxBIOS project.
*
* Copyright (C) 2007 Advanced Micro Devices
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include "cs5536.h"
#define IDE_CFG 0x40
#define CHANEN (1L << 1)
#define PWB (1L << 14)
#define CABLE (1L << 16)
#define IDE_DTC 0x48
#define IDE_CAST 0x4C
#define IDE_ETC 0x50
static void ide_init(struct device *dev)
{
uint32_t ide_cfg;
printk_spew("cs5536_ide: %s\n", __FUNCTION__);
/* GPIO and IRQ setup are handled in the main chipset code. */
// Enable the channel and Post Write Buffer
// NOTE: Only 32-bit writes to the data buffer are allowed when PWB is set
ide_cfg = pci_read_config32(dev, IDE_CFG);
ide_cfg |= CHANEN | PWB;
pci_write_config8(dev, IDE_CFG, ide_cfg);
}
static void ide_enable(struct device *dev)
{
printk_spew("cs5536_ide: %s\n", __FUNCTION__);
}
static struct device_operations ide_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = ide_init,
.enable = 0,
};
static struct pci_driver ide_driver __pci_driver = {
.ops = &ide_ops,
.vendor = PCI_VENDOR_ID_AMD,
.device = PCI_DEVICE_ID_AMD_CS5536_IDE,
};
|
