1 #include <linux/ioport.h>
3 #include <rt305x_regs.h>
4 #include <rt305x_esw_platform.h>
6 #define GPIO_PRUPOSE 0x60
7 #define GPIO_MDIO_BIT (1<<7)
8 #define RT305X_ESW_PHY_WRITE (1 << 13)
9 #define RT305X_ESW_PHY_TOUT (5 * HZ)
10 #define RT305X_ESW_PHY_CONTROL_0 0xC0
11 #define RT305X_ESW_PHY_CONTROL_1 0xC4
15 struct rt305x_esw_platform_data
*pdata
;
19 ramips_esw_wr(struct rt305x_esw
*esw
, u32 val
, unsigned reg
)
21 __raw_writel(val
, esw
->base
+ reg
);
25 ramips_esw_rr(struct rt305x_esw
*esw
, unsigned reg
)
27 return __raw_readl(esw
->base
+ reg
);
31 ramips_enable_mdio(int s
)
33 u32 gpio
= rt305x_sysc_rr(GPIO_PRUPOSE
);
35 gpio
&= ~GPIO_MDIO_BIT
;
37 gpio
|= GPIO_MDIO_BIT
;
38 rt305x_sysc_wr(gpio
, GPIO_PRUPOSE
);
42 mii_mgr_write(struct rt305x_esw
*esw
, u32 phy_addr
, u32 phy_register
,
45 unsigned long volatile t_start
= jiffies
;
48 ramips_enable_mdio(1);
51 if(!(ramips_esw_rr(esw
, RT305X_ESW_PHY_CONTROL_1
) & (0x1 << 0)))
53 if(time_after(jiffies
, t_start
+ RT305X_ESW_PHY_TOUT
))
59 ramips_esw_wr(esw
, ((write_data
& 0xFFFF) << 16) | (phy_register
<< 8) |
60 (phy_addr
) | RT305X_ESW_PHY_WRITE
, RT305X_ESW_PHY_CONTROL_0
);
64 if(ramips_esw_rr(esw
, RT305X_ESW_PHY_CONTROL_1
) & (0x1 << 0))
66 if(time_after(jiffies
, t_start
+ RT305X_ESW_PHY_TOUT
))
73 ramips_enable_mdio(0);
75 printk(KERN_ERR
"ramips_eth: MDIO timeout\n");
80 rt305x_esw_hw_init(struct rt305x_esw
*esw
)
84 /* vodoo from original driver */
85 ramips_esw_wr(esw
, 0xC8A07850, 0x08);
86 ramips_esw_wr(esw
, 0x00000000, 0xe4);
87 ramips_esw_wr(esw
, 0x00405555, 0x14);
88 ramips_esw_wr(esw
, 0x00002001, 0x50);
89 ramips_esw_wr(esw
, 0x00007f7f, 0x90);
90 ramips_esw_wr(esw
, 0x00007f3f, 0x98);
91 ramips_esw_wr(esw
, 0x00d6500c, 0xcc);
92 ramips_esw_wr(esw
, 0x0008a301, 0x9c);
93 ramips_esw_wr(esw
, 0x02404040, 0x8c);
94 ramips_esw_wr(esw
, 0x00001002, 0x48);
95 ramips_esw_wr(esw
, 0x3f502b28, 0xc8);
96 ramips_esw_wr(esw
, 0x00000000, 0x84);
98 mii_mgr_write(esw
, 0, 31, 0x8000);
99 for(i
= 0; i
< 5; i
++)
101 mii_mgr_write(esw
, i
, 0, 0x3100); //TX10 waveform coefficient
102 mii_mgr_write(esw
, i
, 26, 0x1601); //TX10 waveform coefficient
103 mii_mgr_write(esw
, i
, 29, 0x7058); //TX100/TX10 AD/DA current bias
104 mii_mgr_write(esw
, i
, 30, 0x0018); //TX100 slew rate control
107 mii_mgr_write(esw
, 0, 31, 0x0); //select global register
108 mii_mgr_write(esw
, 0, 22, 0x052f); //tune TP_IDL tail and head waveform
109 mii_mgr_write(esw
, 0, 17, 0x0fe0); //set TX10 signal amplitude threshold to minimum
110 mii_mgr_write(esw
, 0, 18, 0x40ba); //set squelch amplitude to higher threshold
111 mii_mgr_write(esw
, 0, 14, 0x65); //longer TP_IDL tail length
112 mii_mgr_write(esw
, 0, 31, 0x8000); //select local register
114 /* Port 5 Disabled */
115 rt305x_sysc_wr(rt305x_sysc_rr(0x60) | (1 << 9), 0x60); //set RGMII to GPIO mode (GPIO41-GPIO50)
116 rt305x_sysc_wr(0xfff, 0x674); //GPIO41-GPIO50 output mode
117 rt305x_sysc_wr(0x0, 0x670); //GPIO41-GPIO50 output low
119 /* set default vlan */
120 ramips_esw_wr(esw
, 0x2001, 0x50);
121 ramips_esw_wr(esw
, 0x504f, 0x70);
125 rt305x_esw_probe(struct platform_device
*pdev
)
127 struct rt305x_esw_platform_data
*pdata
;
128 struct rt305x_esw
*esw
;
129 struct resource
*res
;
132 pdata
= pdev
->dev
.platform_data
;
136 res
= platform_get_resource(pdev
, IORESOURCE_MEM
, 0);
138 dev_err(&pdev
->dev
, "no memory resource found\n");
142 esw
= kzalloc(sizeof (struct rt305x_esw
), GFP_KERNEL
);
144 dev_err(&pdev
->dev
, "no memory for private data\n");
148 esw
->base
= ioremap(res
->start
, resource_size(res
));
150 dev_err(&pdev
->dev
, "ioremap failed\n");
155 platform_set_drvdata(pdev
, esw
);
158 rt305x_esw_hw_init(esw
);
168 rt305x_esw_remove(struct platform_device
*pdev
)
170 struct rt305x_esw
*esw
;
172 esw
= platform_get_drvdata(pdev
);
174 platform_set_drvdata(pdev
, NULL
);
182 static struct platform_driver rt305x_esw_driver
= {
183 .probe
= rt305x_esw_probe
,
184 .remove
= rt305x_esw_remove
,
186 .name
= "rt305x-esw",
187 .owner
= THIS_MODULE
,
192 rt305x_esw_init(void)
194 return platform_driver_register(&rt305x_esw_driver
);
198 rt305x_esw_exit(void)
200 platform_driver_unregister(&rt305x_esw_driver
);