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git.ipfire.org Git - people/ms/u-boot.git/blob - drivers/net/cpsw-common.c
2 * CPSW common - libs used across TI ethernet devices.
4 * Copyright (C) 2016, Texas Instruments, Incorporated
6 * SPDX-License-Identifier: GPL-2.0+
11 #include <fdt_support.h>
15 DECLARE_GLOBAL_DATA_PTR
;
17 #define CTRL_MAC_REG(offset, id) ((offset) + 0x8 * (id))
19 static int davinci_emac_3517_get_macid(struct udevice
*dev
, u16 offset
,
20 int slave
, u8
*mac_addr
)
22 void *fdt
= (void *)gd
->fdt_blob
;
23 int node
= dev_of_offset(dev
);
30 syscon
= fdtdec_lookup_phandle(fdt
, node
, "syscon");
32 pr_err("Syscon offset not found\n");
36 addr
= (u32
)map_physmem(fdt_translate_address(fdt
, syscon
, &gmii
),
37 sizeof(u32
), MAP_NOCACHE
);
38 if (addr
== FDT_ADDR_T_NONE
) {
39 pr_err("Not able to get syscon address to get mac efuse address\n");
43 addr
+= CTRL_MAC_REG(offset
, slave
);
45 /* try reading mac address from efuse */
46 macid_lsb
= readl(addr
);
47 macid_msb
= readl(addr
+ 4);
49 mac_addr
[0] = (macid_msb
>> 16) & 0xff;
50 mac_addr
[1] = (macid_msb
>> 8) & 0xff;
51 mac_addr
[2] = macid_msb
& 0xff;
52 mac_addr
[3] = (macid_lsb
>> 16) & 0xff;
53 mac_addr
[4] = (macid_lsb
>> 8) & 0xff;
54 mac_addr
[5] = macid_lsb
& 0xff;
59 static int cpsw_am33xx_cm_get_macid(struct udevice
*dev
, u16 offset
, int slave
,
62 void *fdt
= (void *)gd
->fdt_blob
;
63 int node
= dev_of_offset(dev
);
70 syscon
= fdtdec_lookup_phandle(fdt
, node
, "syscon");
72 pr_err("Syscon offset not found\n");
76 addr
= (u32
)map_physmem(fdt_translate_address(fdt
, syscon
, &gmii
),
77 sizeof(u32
), MAP_NOCACHE
);
78 if (addr
== FDT_ADDR_T_NONE
) {
79 pr_err("Not able to get syscon address to get mac efuse address\n");
83 addr
+= CTRL_MAC_REG(offset
, slave
);
85 /* try reading mac address from efuse */
86 macid_lo
= readl(addr
);
87 macid_hi
= readl(addr
+ 4);
89 mac_addr
[5] = (macid_lo
>> 8) & 0xff;
90 mac_addr
[4] = macid_lo
& 0xff;
91 mac_addr
[3] = (macid_hi
>> 24) & 0xff;
92 mac_addr
[2] = (macid_hi
>> 16) & 0xff;
93 mac_addr
[1] = (macid_hi
>> 8) & 0xff;
94 mac_addr
[0] = macid_hi
& 0xff;
99 int ti_cm_get_macid(struct udevice
*dev
, int slave
, u8
*mac_addr
)
101 if (of_machine_is_compatible("ti,dm8148"))
102 return cpsw_am33xx_cm_get_macid(dev
, 0x630, slave
, mac_addr
);
104 if (of_machine_is_compatible("ti,am33xx"))
105 return cpsw_am33xx_cm_get_macid(dev
, 0x630, slave
, mac_addr
);
107 if (device_is_compatible(dev
, "ti,am3517-emac"))
108 return davinci_emac_3517_get_macid(dev
, 0x110, slave
, mac_addr
);
110 if (device_is_compatible(dev
, "ti,dm816-emac"))
111 return cpsw_am33xx_cm_get_macid(dev
, 0x30, slave
, mac_addr
);
113 if (of_machine_is_compatible("ti,am43"))
114 return cpsw_am33xx_cm_get_macid(dev
, 0x630, slave
, mac_addr
);
116 if (of_machine_is_compatible("ti,dra7"))
117 return davinci_emac_3517_get_macid(dev
, 0x514, slave
, mac_addr
);
119 dev_err(dev
, "incompatible machine/device type for reading mac address\n");