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