xref: /OK3568_Linux_fs/kernel/arch/mips/alchemy/devboards/db1xxx.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  * Alchemy DB/PB1xxx board support.
4*4882a593Smuzhiyun  */
5*4882a593Smuzhiyun 
6*4882a593Smuzhiyun #include <asm/prom.h>
7*4882a593Smuzhiyun #include <asm/mach-au1x00/au1000.h>
8*4882a593Smuzhiyun #include <asm/mach-db1x00/bcsr.h>
9*4882a593Smuzhiyun 
10*4882a593Smuzhiyun int __init db1000_board_setup(void);
11*4882a593Smuzhiyun int __init db1000_dev_setup(void);
12*4882a593Smuzhiyun int __init db1500_pci_setup(void);
13*4882a593Smuzhiyun int __init db1200_board_setup(void);
14*4882a593Smuzhiyun int __init db1200_dev_setup(void);
15*4882a593Smuzhiyun int __init db1300_board_setup(void);
16*4882a593Smuzhiyun int __init db1300_dev_setup(void);
17*4882a593Smuzhiyun int __init db1550_board_setup(void);
18*4882a593Smuzhiyun int __init db1550_dev_setup(void);
19*4882a593Smuzhiyun int __init db1550_pci_setup(int);
20*4882a593Smuzhiyun 
board_type_str(void)21*4882a593Smuzhiyun static const char *board_type_str(void)
22*4882a593Smuzhiyun {
23*4882a593Smuzhiyun 	switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
24*4882a593Smuzhiyun 	case BCSR_WHOAMI_DB1000:
25*4882a593Smuzhiyun 		return "DB1000";
26*4882a593Smuzhiyun 	case BCSR_WHOAMI_DB1500:
27*4882a593Smuzhiyun 		return "DB1500";
28*4882a593Smuzhiyun 	case BCSR_WHOAMI_DB1100:
29*4882a593Smuzhiyun 		return "DB1100";
30*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1500:
31*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1500R2:
32*4882a593Smuzhiyun 		return "PB1500";
33*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1100:
34*4882a593Smuzhiyun 		return "PB1100";
35*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1200_DDR1:
36*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1200_DDR2:
37*4882a593Smuzhiyun 		return "PB1200";
38*4882a593Smuzhiyun 	case BCSR_WHOAMI_DB1200:
39*4882a593Smuzhiyun 		return "DB1200";
40*4882a593Smuzhiyun 	case BCSR_WHOAMI_DB1300:
41*4882a593Smuzhiyun 		return "DB1300";
42*4882a593Smuzhiyun 	case BCSR_WHOAMI_DB1550:
43*4882a593Smuzhiyun 		return "DB1550";
44*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1550_SDR:
45*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1550_DDR:
46*4882a593Smuzhiyun 		return "PB1550";
47*4882a593Smuzhiyun 	default:
48*4882a593Smuzhiyun 		return "(unknown)";
49*4882a593Smuzhiyun 	}
50*4882a593Smuzhiyun }
51*4882a593Smuzhiyun 
get_system_type(void)52*4882a593Smuzhiyun const char *get_system_type(void)
53*4882a593Smuzhiyun {
54*4882a593Smuzhiyun 	return board_type_str();
55*4882a593Smuzhiyun }
56*4882a593Smuzhiyun 
board_setup(void)57*4882a593Smuzhiyun void __init board_setup(void)
58*4882a593Smuzhiyun {
59*4882a593Smuzhiyun 	int ret;
60*4882a593Smuzhiyun 
61*4882a593Smuzhiyun 	switch (alchemy_get_cputype()) {
62*4882a593Smuzhiyun 	case ALCHEMY_CPU_AU1000:
63*4882a593Smuzhiyun 	case ALCHEMY_CPU_AU1500:
64*4882a593Smuzhiyun 	case ALCHEMY_CPU_AU1100:
65*4882a593Smuzhiyun 		ret = db1000_board_setup();
66*4882a593Smuzhiyun 		break;
67*4882a593Smuzhiyun 	case ALCHEMY_CPU_AU1550:
68*4882a593Smuzhiyun 		ret = db1550_board_setup();
69*4882a593Smuzhiyun 		break;
70*4882a593Smuzhiyun 	case ALCHEMY_CPU_AU1200:
71*4882a593Smuzhiyun 		ret = db1200_board_setup();
72*4882a593Smuzhiyun 		break;
73*4882a593Smuzhiyun 	case ALCHEMY_CPU_AU1300:
74*4882a593Smuzhiyun 		ret = db1300_board_setup();
75*4882a593Smuzhiyun 		break;
76*4882a593Smuzhiyun 	default:
77*4882a593Smuzhiyun 		pr_err("unsupported CPU on board\n");
78*4882a593Smuzhiyun 		ret = -ENODEV;
79*4882a593Smuzhiyun 	}
80*4882a593Smuzhiyun 	if (ret)
81*4882a593Smuzhiyun 		panic("cannot initialize board support");
82*4882a593Smuzhiyun }
83*4882a593Smuzhiyun 
db1xxx_arch_init(void)84*4882a593Smuzhiyun static int __init db1xxx_arch_init(void)
85*4882a593Smuzhiyun {
86*4882a593Smuzhiyun 	int id = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
87*4882a593Smuzhiyun 	if (id == BCSR_WHOAMI_DB1550)
88*4882a593Smuzhiyun 		return db1550_pci_setup(0);
89*4882a593Smuzhiyun 	else if ((id == BCSR_WHOAMI_PB1550_SDR) ||
90*4882a593Smuzhiyun 		 (id == BCSR_WHOAMI_PB1550_DDR))
91*4882a593Smuzhiyun 		return db1550_pci_setup(1);
92*4882a593Smuzhiyun 	else if ((id == BCSR_WHOAMI_DB1500) || (id == BCSR_WHOAMI_PB1500) ||
93*4882a593Smuzhiyun 		 (id == BCSR_WHOAMI_PB1500R2))
94*4882a593Smuzhiyun 		return db1500_pci_setup();
95*4882a593Smuzhiyun 
96*4882a593Smuzhiyun 	return 0;
97*4882a593Smuzhiyun }
98*4882a593Smuzhiyun arch_initcall(db1xxx_arch_init);
99*4882a593Smuzhiyun 
db1xxx_dev_init(void)100*4882a593Smuzhiyun static int __init db1xxx_dev_init(void)
101*4882a593Smuzhiyun {
102*4882a593Smuzhiyun 	mips_set_machine_name(board_type_str());
103*4882a593Smuzhiyun 	switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
104*4882a593Smuzhiyun 	case BCSR_WHOAMI_DB1000:
105*4882a593Smuzhiyun 	case BCSR_WHOAMI_DB1500:
106*4882a593Smuzhiyun 	case BCSR_WHOAMI_DB1100:
107*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1500:
108*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1500R2:
109*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1100:
110*4882a593Smuzhiyun 		return db1000_dev_setup();
111*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1200_DDR1:
112*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1200_DDR2:
113*4882a593Smuzhiyun 	case BCSR_WHOAMI_DB1200:
114*4882a593Smuzhiyun 		return db1200_dev_setup();
115*4882a593Smuzhiyun 	case BCSR_WHOAMI_DB1300:
116*4882a593Smuzhiyun 		return db1300_dev_setup();
117*4882a593Smuzhiyun 	case BCSR_WHOAMI_DB1550:
118*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1550_SDR:
119*4882a593Smuzhiyun 	case BCSR_WHOAMI_PB1550_DDR:
120*4882a593Smuzhiyun 		return db1550_dev_setup();
121*4882a593Smuzhiyun 	}
122*4882a593Smuzhiyun 	return 0;
123*4882a593Smuzhiyun }
124*4882a593Smuzhiyun device_initcall(db1xxx_dev_init);
125