1 /*
2  * Alchemy DB/PB1xxx board support.
3  */
4 
5 #include <asm/prom.h>
6 #include <asm/mach-au1x00/au1000.h>
7 #include <asm/mach-db1x00/bcsr.h>
8 
9 int __init db1000_board_setup(void);
10 int __init db1000_dev_setup(void);
11 int __init db1500_pci_setup(void);
12 int __init db1200_board_setup(void);
13 int __init db1200_dev_setup(void);
14 int __init db1300_board_setup(void);
15 int __init db1300_dev_setup(void);
16 int __init db1550_board_setup(void);
17 int __init db1550_dev_setup(void);
18 int __init db1550_pci_setup(int);
19 
20 static const char *board_type_str(void)
21 {
22 	switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
23 	case BCSR_WHOAMI_DB1000:
24 		return "DB1000";
25 	case BCSR_WHOAMI_DB1500:
26 		return "DB1500";
27 	case BCSR_WHOAMI_DB1100:
28 		return "DB1100";
29 	case BCSR_WHOAMI_PB1500:
30 	case BCSR_WHOAMI_PB1500R2:
31 		return "PB1500";
32 	case BCSR_WHOAMI_PB1100:
33 		return "PB1100";
34 	case BCSR_WHOAMI_PB1200_DDR1:
35 	case BCSR_WHOAMI_PB1200_DDR2:
36 		return "PB1200";
37 	case BCSR_WHOAMI_DB1200:
38 		return "DB1200";
39 	case BCSR_WHOAMI_DB1300:
40 		return "DB1300";
41 	case BCSR_WHOAMI_DB1550:
42 		return "DB1550";
43 	case BCSR_WHOAMI_PB1550_SDR:
44 	case BCSR_WHOAMI_PB1550_DDR:
45 		return "PB1550";
46 	default:
47 		return "(unknown)";
48 	}
49 }
50 
51 const char *get_system_type(void)
52 {
53 	return board_type_str();
54 }
55 
56 void __init board_setup(void)
57 {
58 	int ret;
59 
60 	switch (alchemy_get_cputype()) {
61 	case ALCHEMY_CPU_AU1000:
62 	case ALCHEMY_CPU_AU1500:
63 	case ALCHEMY_CPU_AU1100:
64 		ret = db1000_board_setup();
65 		break;
66 	case ALCHEMY_CPU_AU1550:
67 		ret = db1550_board_setup();
68 		break;
69 	case ALCHEMY_CPU_AU1200:
70 		ret = db1200_board_setup();
71 		break;
72 	case ALCHEMY_CPU_AU1300:
73 		ret = db1300_board_setup();
74 		break;
75 	default:
76 		pr_err("unsupported CPU on board\n");
77 		ret = -ENODEV;
78 	}
79 	if (ret)
80 		panic("cannot initialize board support");
81 }
82 
83 static int __init db1xxx_arch_init(void)
84 {
85 	int id = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
86 	if (id == BCSR_WHOAMI_DB1550)
87 		return db1550_pci_setup(0);
88 	else if ((id == BCSR_WHOAMI_PB1550_SDR) ||
89 		 (id == BCSR_WHOAMI_PB1550_DDR))
90 		return db1550_pci_setup(1);
91 	else if ((id == BCSR_WHOAMI_DB1500) || (id == BCSR_WHOAMI_PB1500) ||
92 		 (id == BCSR_WHOAMI_PB1500R2))
93 		return db1500_pci_setup();
94 
95 	return 0;
96 }
97 arch_initcall(db1xxx_arch_init);
98 
99 static int __init db1xxx_dev_init(void)
100 {
101 	mips_set_machine_name(board_type_str());
102 	switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
103 	case BCSR_WHOAMI_DB1000:
104 	case BCSR_WHOAMI_DB1500:
105 	case BCSR_WHOAMI_DB1100:
106 	case BCSR_WHOAMI_PB1500:
107 	case BCSR_WHOAMI_PB1500R2:
108 	case BCSR_WHOAMI_PB1100:
109 		return db1000_dev_setup();
110 	case BCSR_WHOAMI_PB1200_DDR1:
111 	case BCSR_WHOAMI_PB1200_DDR2:
112 	case BCSR_WHOAMI_DB1200:
113 		return db1200_dev_setup();
114 	case BCSR_WHOAMI_DB1300:
115 		return db1300_dev_setup();
116 	case BCSR_WHOAMI_DB1550:
117 	case BCSR_WHOAMI_PB1550_SDR:
118 	case BCSR_WHOAMI_PB1550_DDR:
119 		return db1550_dev_setup();
120 	}
121 	return 0;
122 }
123 device_initcall(db1xxx_dev_init);
124