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Commit | Line | Data |
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e4310566 M |
1 | /* |
2 | * CPSW common - libs used across TI ethernet devices. | |
3 | * | |
4 | * Copyright (C) 2016, Texas Instruments, Incorporated | |
5 | * | |
6 | * SPDX-License-Identifier: GPL-2.0+ | |
7 | */ | |
8 | ||
9 | #include <common.h> | |
10 | #include <dm.h> | |
11 | #include <fdt_support.h> | |
12 | #include <asm/io.h> | |
13 | #include <cpsw.h> | |
14 | ||
15 | DECLARE_GLOBAL_DATA_PTR; | |
16 | ||
17 | #define CTRL_MAC_REG(offset, id) ((offset) + 0x8 * (id)) | |
18 | ||
19 | static int davinci_emac_3517_get_macid(struct udevice *dev, u16 offset, | |
20 | int slave, u8 *mac_addr) | |
21 | { | |
22 | void *fdt = (void *)gd->fdt_blob; | |
e160f7d4 | 23 | int node = dev_of_offset(dev); |
e4310566 M |
24 | u32 macid_lsb; |
25 | u32 macid_msb; | |
26 | fdt32_t gmii = 0; | |
27 | int syscon; | |
28 | u32 addr; | |
29 | ||
30 | syscon = fdtdec_lookup_phandle(fdt, node, "syscon"); | |
31 | if (syscon < 0) { | |
9b643e31 | 32 | pr_err("Syscon offset not found\n"); |
e4310566 M |
33 | return -ENOENT; |
34 | } | |
35 | ||
36 | addr = (u32)map_physmem(fdt_translate_address(fdt, syscon, &gmii), | |
37 | sizeof(u32), MAP_NOCACHE); | |
38 | if (addr == FDT_ADDR_T_NONE) { | |
9b643e31 | 39 | pr_err("Not able to get syscon address to get mac efuse address\n"); |
e4310566 M |
40 | return -ENOENT; |
41 | } | |
42 | ||
43 | addr += CTRL_MAC_REG(offset, slave); | |
44 | ||
45 | /* try reading mac address from efuse */ | |
46 | macid_lsb = readl(addr); | |
47 | macid_msb = readl(addr + 4); | |
48 | ||
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; | |
55 | ||
56 | return 0; | |
57 | } | |
58 | ||
59 | static int cpsw_am33xx_cm_get_macid(struct udevice *dev, u16 offset, int slave, | |
60 | u8 *mac_addr) | |
61 | { | |
62 | void *fdt = (void *)gd->fdt_blob; | |
e160f7d4 | 63 | int node = dev_of_offset(dev); |
e4310566 M |
64 | u32 macid_lo; |
65 | u32 macid_hi; | |
66 | fdt32_t gmii = 0; | |
67 | int syscon; | |
68 | u32 addr; | |
69 | ||
70 | syscon = fdtdec_lookup_phandle(fdt, node, "syscon"); | |
71 | if (syscon < 0) { | |
9b643e31 | 72 | pr_err("Syscon offset not found\n"); |
e4310566 M |
73 | return -ENOENT; |
74 | } | |
75 | ||
76 | addr = (u32)map_physmem(fdt_translate_address(fdt, syscon, &gmii), | |
77 | sizeof(u32), MAP_NOCACHE); | |
78 | if (addr == FDT_ADDR_T_NONE) { | |
9b643e31 | 79 | pr_err("Not able to get syscon address to get mac efuse address\n"); |
e4310566 M |
80 | return -ENOENT; |
81 | } | |
82 | ||
83 | addr += CTRL_MAC_REG(offset, slave); | |
84 | ||
85 | /* try reading mac address from efuse */ | |
86 | macid_lo = readl(addr); | |
87 | macid_hi = readl(addr + 4); | |
88 | ||
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; | |
95 | ||
96 | return 0; | |
97 | } | |
98 | ||
99 | int ti_cm_get_macid(struct udevice *dev, int slave, u8 *mac_addr) | |
100 | { | |
101 | if (of_machine_is_compatible("ti,dm8148")) | |
102 | return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr); | |
103 | ||
104 | if (of_machine_is_compatible("ti,am33xx")) | |
105 | return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr); | |
106 | ||
911f3aef | 107 | if (device_is_compatible(dev, "ti,am3517-emac")) |
e4310566 M |
108 | return davinci_emac_3517_get_macid(dev, 0x110, slave, mac_addr); |
109 | ||
911f3aef | 110 | if (device_is_compatible(dev, "ti,dm816-emac")) |
e4310566 M |
111 | return cpsw_am33xx_cm_get_macid(dev, 0x30, slave, mac_addr); |
112 | ||
e9ced147 | 113 | if (of_machine_is_compatible("ti,am43")) |
e4310566 M |
114 | return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr); |
115 | ||
116 | if (of_machine_is_compatible("ti,dra7")) | |
117 | return davinci_emac_3517_get_macid(dev, 0x514, slave, mac_addr); | |
118 | ||
119 | dev_err(dev, "incompatible machine/device type for reading mac address\n"); | |
120 | return -ENOENT; | |
121 | } |