1 #include <linux/ioport.h>
3 #include <rt305x_regs.h>
4 #include <rt305x_esw_platform.h>
6 #define RT305X_ESW_PHY_WRITE (1 << 13)
7 #define RT305X_ESW_PHY_TOUT (5 * HZ)
8 #define RT305X_ESW_PHY_CONTROL_0 0xC0
9 #define RT305X_ESW_PHY_CONTROL_1 0xC4
13 struct rt305x_esw_platform_data
*pdata
;
17 ramips_esw_wr(struct rt305x_esw
*esw
, u32 val
, unsigned reg
)
19 __raw_writel(val
, esw
->base
+ reg
);
23 ramips_esw_rr(struct rt305x_esw
*esw
, unsigned reg
)
25 return __raw_readl(esw
->base
+ reg
);
29 mii_mgr_write(struct rt305x_esw
*esw
, u32 phy_addr
, u32 phy_register
,
32 unsigned long volatile t_start
= jiffies
;
37 if(!(ramips_esw_rr(esw
, RT305X_ESW_PHY_CONTROL_1
) & (0x1 << 0)))
39 if(time_after(jiffies
, t_start
+ RT305X_ESW_PHY_TOUT
))
45 ramips_esw_wr(esw
, ((write_data
& 0xFFFF) << 16) | (phy_register
<< 8) |
46 (phy_addr
) | RT305X_ESW_PHY_WRITE
, RT305X_ESW_PHY_CONTROL_0
);
50 if(ramips_esw_rr(esw
, RT305X_ESW_PHY_CONTROL_1
) & (0x1 << 0))
52 if(time_after(jiffies
, t_start
+ RT305X_ESW_PHY_TOUT
))
60 printk(KERN_ERR
"ramips_eth: MDIO timeout\n");
65 rt305x_esw_hw_init(struct rt305x_esw
*esw
)
69 /* vodoo from original driver */
70 ramips_esw_wr(esw
, 0xC8A07850, 0x08);
71 ramips_esw_wr(esw
, 0x00000000, 0xe4);
72 ramips_esw_wr(esw
, 0x00405555, 0x14);
73 ramips_esw_wr(esw
, 0x00002001, 0x50);
74 ramips_esw_wr(esw
, 0x00007f7f, 0x90);
75 ramips_esw_wr(esw
, 0x00007f3f, 0x98);
76 ramips_esw_wr(esw
, 0x00d6500c, 0xcc);
77 ramips_esw_wr(esw
, 0x0008a301, 0x9c);
78 ramips_esw_wr(esw
, 0x02404040, 0x8c);
79 ramips_esw_wr(esw
, 0x00001002, 0x48);
80 ramips_esw_wr(esw
, 0x3f502b28, 0xc8);
81 ramips_esw_wr(esw
, 0x00000000, 0x84);
83 mii_mgr_write(esw
, 0, 31, 0x8000);
84 for(i
= 0; i
< 5; i
++)
86 mii_mgr_write(esw
, i
, 0, 0x3100); //TX10 waveform coefficient
87 mii_mgr_write(esw
, i
, 26, 0x1601); //TX10 waveform coefficient
88 mii_mgr_write(esw
, i
, 29, 0x7058); //TX100/TX10 AD/DA current bias
89 mii_mgr_write(esw
, i
, 30, 0x0018); //TX100 slew rate control
92 mii_mgr_write(esw
, 0, 31, 0x0); //select global register
93 mii_mgr_write(esw
, 0, 22, 0x052f); //tune TP_IDL tail and head waveform
94 mii_mgr_write(esw
, 0, 17, 0x0fe0); //set TX10 signal amplitude threshold to minimum
95 mii_mgr_write(esw
, 0, 18, 0x40ba); //set squelch amplitude to higher threshold
96 mii_mgr_write(esw
, 0, 14, 0x65); //longer TP_IDL tail length
97 mii_mgr_write(esw
, 0, 31, 0x8000); //select local register
99 /* set default vlan */
100 ramips_esw_wr(esw
, 0x2001, 0x50);
101 ramips_esw_wr(esw
, 0x504f, 0x70);
105 rt305x_esw_probe(struct platform_device
*pdev
)
107 struct rt305x_esw_platform_data
*pdata
;
108 struct rt305x_esw
*esw
;
109 struct resource
*res
;
112 pdata
= pdev
->dev
.platform_data
;
116 res
= platform_get_resource(pdev
, IORESOURCE_MEM
, 0);
118 dev_err(&pdev
->dev
, "no memory resource found\n");
122 esw
= kzalloc(sizeof (struct rt305x_esw
), GFP_KERNEL
);
124 dev_err(&pdev
->dev
, "no memory for private data\n");
128 esw
->base
= ioremap(res
->start
, resource_size(res
));
130 dev_err(&pdev
->dev
, "ioremap failed\n");
135 platform_set_drvdata(pdev
, esw
);
138 rt305x_esw_hw_init(esw
);
148 rt305x_esw_remove(struct platform_device
*pdev
)
150 struct rt305x_esw
*esw
;
152 esw
= platform_get_drvdata(pdev
);
154 platform_set_drvdata(pdev
, NULL
);
162 static struct platform_driver rt305x_esw_driver
= {
163 .probe
= rt305x_esw_probe
,
164 .remove
= rt305x_esw_remove
,
166 .name
= "rt305x-esw",
167 .owner
= THIS_MODULE
,
172 rt305x_esw_init(void)
174 return platform_driver_register(&rt305x_esw_driver
);
178 rt305x_esw_exit(void)
180 platform_driver_unregister(&rt305x_esw_driver
);