Commit | Line | Data |
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1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Board setup routines for the SBS PalomarIV. |
3 | * | |
4 | * Author: Dan Cox | |
5 | * | |
6 | * 2002 (c) MontaVista, Software, Inc. This file is licensed under | |
7 | * the terms of the GNU General Public License version 2. This program | |
8 | * is licensed "as is" without any warranty of any kind, whether express | |
9 | * or implied. | |
10 | */ | |
11 | ||
12 | #include <linux/config.h> | |
13 | #include <linux/kernel.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/types.h> | |
16 | #include <linux/errno.h> | |
17 | #include <linux/reboot.h> | |
18 | #include <linux/time.h> | |
19 | #include <linux/irq.h> | |
20 | #include <linux/kdev_t.h> | |
21 | #include <linux/initrd.h> | |
22 | #include <linux/console.h> | |
23 | #include <linux/seq_file.h> | |
24 | #include <linux/root_dev.h> | |
25 | ||
26 | #include <asm/io.h> | |
27 | #include <asm/todc.h> | |
28 | #include <asm/bootinfo.h> | |
fd582ec8 | 29 | #include <asm/machdep.h> |
1da177e4 LT |
30 | |
31 | #include <syslib/cpc700.h> | |
32 | ||
33 | #include "pal4.h" | |
34 | ||
35 | extern void pal4_find_bridges(void); | |
36 | ||
37 | unsigned int cpc700_irq_assigns[][2] = { | |
38 | {1, 1}, /* IRQ 0: ECC correctable error */ | |
39 | {1, 1}, /* IRQ 1: PCI write to memory range */ | |
40 | {0, 1}, /* IRQ 2: PCI write to command register */ | |
41 | {0, 1}, /* IRQ 3: UART 0 */ | |
42 | {0, 1}, /* IRQ 4: UART 1 */ | |
43 | {0, 1}, /* IRQ 5: ICC 0 */ | |
44 | {0, 1}, /* IRQ 6: ICC 1 */ | |
45 | {0, 1}, /* IRQ 7: GPT compare 0 */ | |
46 | {0, 1}, /* IRQ 8: GPT compare 1 */ | |
47 | {0, 1}, /* IRQ 9: GPT compare 2 */ | |
48 | {0, 1}, /* IRQ 10: GPT compare 3 */ | |
49 | {0, 1}, /* IRQ 11: GPT compare 4 */ | |
50 | {0, 1}, /* IRQ 12: GPT capture 0 */ | |
51 | {0, 1}, /* IRQ 13: GPT capture 1 */ | |
52 | {0, 1}, /* IRQ 14: GPT capture 2 */ | |
53 | {0, 1}, /* IRQ 15: GPT capture 3 */ | |
54 | {0, 1}, /* IRQ 16: GPT capture 4 */ | |
55 | {0, 0}, /* IRQ 17: reserved */ | |
56 | {0, 0}, /* IRQ 18: reserved */ | |
57 | {0, 0}, /* IRQ 19: reserved */ | |
58 | {0, 0}, /* IRQ 20: reserved */ | |
59 | {0, 1}, /* IRQ 21: Ethernet */ | |
60 | {0, 0}, /* IRQ 22: reserved */ | |
61 | {0, 0}, /* IRQ 23: reserved */ | |
62 | {0, 0}, /* IRQ 24: resreved */ | |
63 | {0, 0}, /* IRQ 25: reserved */ | |
64 | {0, 0}, /* IRQ 26: reserved */ | |
65 | {0, 0}, /* IRQ 27: reserved */ | |
66 | {0, 0}, /* IRQ 28: reserved */ | |
67 | {0, 0}, /* IRQ 29: reserved */ | |
68 | {0, 0}, /* IRQ 30: reserved */ | |
69 | {0, 0}, /* IRQ 31: reserved */ | |
70 | }; | |
71 | ||
72 | static int | |
73 | pal4_show_cpuinfo(struct seq_file *m) | |
74 | { | |
75 | seq_printf(m, "board\t\t: SBS Palomar IV\n"); | |
76 | ||
77 | return 0; | |
78 | } | |
79 | ||
80 | static void | |
81 | pal4_restart(char *cmd) | |
82 | { | |
83 | local_irq_disable(); | |
84 | __asm__ __volatile__("lis 3,0xfff0\n \ | |
85 | ori 3,3,0x100\n \ | |
86 | mtspr 26,3\n \ | |
87 | li 3,0\n \ | |
88 | mtspr 27,3\n \ | |
89 | rfi"); | |
90 | ||
91 | for(;;); | |
92 | } | |
93 | ||
94 | static void | |
95 | pal4_power_off(void) | |
96 | { | |
97 | local_irq_disable(); | |
98 | for(;;); | |
99 | } | |
100 | ||
101 | static void | |
102 | pal4_halt(void) | |
103 | { | |
104 | pal4_power_off(); | |
105 | } | |
106 | ||
107 | TODC_ALLOC(); | |
108 | ||
109 | static void __init | |
110 | pal4_setup_arch(void) | |
111 | { | |
112 | unsigned long l2; | |
113 | ||
114 | TODC_INIT(TODC_TYPE_MK48T37, 0, 0, | |
115 | ioremap(PAL4_NVRAM, PAL4_NVRAM_SIZE), 8); | |
116 | ||
117 | pal4_find_bridges(); | |
118 | ||
119 | #ifdef CONFIG_BLK_DEV_INITRD | |
120 | if (initrd_start) | |
121 | ROOT_DEV = Root_RAM0; | |
122 | else | |
123 | #endif | |
124 | ROOT_DEV = Root_NFS; | |
125 | ||
126 | /* The L2 gets disabled in the bootloader, but all the proper | |
127 | bits should be present from the fw, so just re-enable it */ | |
128 | l2 = _get_L2CR(); | |
129 | if (!(l2 & L2CR_L2E)) { | |
130 | /* presume that it was initially set if the size is | |
131 | still present. */ | |
132 | if (l2 ^ L2CR_L2SIZ_MASK) | |
133 | _set_L2CR(l2 | L2CR_L2E); | |
134 | else | |
135 | printk("L2 not set by firmware; left disabled.\n"); | |
136 | } | |
137 | } | |
138 | ||
139 | static void __init | |
140 | pal4_map_io(void) | |
141 | { | |
142 | io_block_mapping(0xf0000000, 0xf0000000, 0x10000000, _PAGE_IO); | |
143 | } | |
144 | ||
145 | void __init | |
146 | platform_init(unsigned long r3, unsigned long r4, unsigned long r5, | |
147 | unsigned long r6, unsigned long r7) | |
148 | { | |
149 | parse_bootinfo(find_bootinfo()); | |
150 | ||
151 | isa_io_base = 0 /*PAL4_ISA_IO_BASE*/; | |
152 | pci_dram_offset = 0 /*PAL4_PCI_SYS_MEM_BASE*/; | |
153 | ||
154 | ppc_md.setup_arch = pal4_setup_arch; | |
155 | ppc_md.show_cpuinfo = pal4_show_cpuinfo; | |
156 | ||
157 | ppc_md.setup_io_mappings = pal4_map_io; | |
158 | ||
159 | ppc_md.init_IRQ = cpc700_init_IRQ; | |
160 | ppc_md.get_irq = cpc700_get_irq; | |
161 | ||
162 | ppc_md.restart = pal4_restart; | |
163 | ppc_md.halt = pal4_halt; | |
164 | ppc_md.power_off = pal4_power_off; | |
165 | ||
166 | ppc_md.time_init = todc_time_init; | |
167 | ppc_md.set_rtc_time = todc_set_rtc_time; | |
168 | ppc_md.get_rtc_time = todc_get_rtc_time; | |
169 | ppc_md.calibrate_decr = todc_calibrate_decr; | |
170 | ||
171 | ppc_md.nvram_read_val = todc_direct_read_val; | |
172 | ppc_md.nvram_write_val = todc_direct_write_val; | |
173 | } | |
174 |