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
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for MT7628 Embedded Switch internal Fast Ethernet PHYs
*/
#include <linux/module.h>
#include <linux/phy.h>
#define MTK_FPHY_ID_MT7628 0x03a29410
#define MTK_EXT_PAGE_ACCESS 0x1f
static int mt7628_phy_read_page(struct phy_device *phydev)
{
return __phy_read(phydev, MTK_EXT_PAGE_ACCESS);
}
static int mt7628_phy_write_page(struct phy_device *phydev, int page)
{
return __phy_write(phydev, MTK_EXT_PAGE_ACCESS, page);
}
static int mt7628_phy_config_init(struct phy_device *phydev)
{
/*
* This undocumented bit is required for the PHYs to be able to
* establish 100mbps links.
*/
return phy_modify_paged(phydev, 0x8000, 30, BIT(13), BIT(13));
}
static struct phy_driver mtk_soc_fe_phy_driver[] = {
{
PHY_ID_MATCH_EXACT(MTK_FPHY_ID_MT7628),
.name = "MediaTek MT7628 PHY",
.config_init = mt7628_phy_config_init,
.read_page = mt7628_phy_read_page,
.write_page = mt7628_phy_write_page,
.suspend = genphy_suspend,
.resume = genphy_resume,
},
};
module_phy_driver(mtk_soc_fe_phy_driver);
static const struct mdio_device_id __maybe_unused mtk_soc_fe_phy_tbl[] = {
{ PHY_ID_MATCH_EXACT(MTK_FPHY_ID_MT7628) },
{ }
};
MODULE_DESCRIPTION("MediaTek SoC Fast Ethernet PHY driver");
MODULE_AUTHOR("Joris Vaisvila <joey@tinyisr.com>");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(mdio, mtk_soc_fe_phy_tbl);
|
