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873e65bc | 1 | // SPDX-License-Identifier: GPL-2.0-only |
bafdb645 GL |
2 | /* |
3 | * PS3 bootwrapper support. | |
4 | * | |
5 | * Copyright (C) 2007 Sony Computer Entertainment Inc. | |
6 | * Copyright 2007 Sony Corp. | |
bafdb645 GL |
7 | */ |
8 | ||
9 | #include <stdarg.h> | |
10 | #include <stddef.h> | |
11 | #include "types.h" | |
12 | #include "elf.h" | |
13 | #include "string.h" | |
14 | #include "stdio.h" | |
15 | #include "page.h" | |
16 | #include "ops.h" | |
17 | ||
5761eaa3 GL |
18 | extern int lv1_panic(u64 in_1); |
19 | extern int lv1_get_logical_partition_id(u64 *out_1); | |
20 | extern int lv1_get_logical_ppe_id(u64 *out_1); | |
21 | extern int lv1_get_repository_node_value(u64 in_1, u64 in_2, u64 in_3, | |
bafdb645 GL |
22 | u64 in_4, u64 in_5, u64 *out_1, u64 *out_2); |
23 | ||
24 | #ifdef DEBUG | |
25 | #define DBG(fmt...) printf(fmt) | |
26 | #else | |
27 | static inline int __attribute__ ((format (printf, 1, 2))) DBG( | |
28 | const char *fmt, ...) {return 0;} | |
29 | #endif | |
30 | ||
31 | BSS_STACK(4096); | |
32 | ||
33 | /* A buffer that may be edited by tools operating on a zImage binary so as to | |
34 | * edit the command line passed to vmlinux (by setting /chosen/bootargs). | |
35 | * The buffer is put in it's own section so that tools may locate it easier. | |
36 | */ | |
5761eaa3 | 37 | |
a2dd5da7 | 38 | static char cmdline[BOOT_COMMAND_LINE_SIZE] |
bafdb645 GL |
39 | __attribute__((__section__("__builtin_cmdline"))); |
40 | ||
41 | static void prep_cmdline(void *chosen) | |
42 | { | |
43 | if (cmdline[0] == '\0') | |
a2dd5da7 | 44 | getprop(chosen, "bootargs", cmdline, BOOT_COMMAND_LINE_SIZE-1); |
bafdb645 GL |
45 | else |
46 | setprop_str(chosen, "bootargs", cmdline); | |
47 | ||
48 | printf("cmdline: '%s'\n", cmdline); | |
49 | } | |
50 | ||
51 | static void ps3_console_write(const char *buf, int len) | |
52 | { | |
53 | } | |
54 | ||
55 | static void ps3_exit(void) | |
56 | { | |
57 | printf("ps3_exit\n"); | |
58 | ||
59 | /* lv1_panic will shutdown the lpar. */ | |
60 | ||
61 | lv1_panic(0); /* zero = do not reboot */ | |
62 | while (1); | |
63 | } | |
64 | ||
65 | static int ps3_repository_read_rm_size(u64 *rm_size) | |
66 | { | |
5761eaa3 | 67 | int result; |
bafdb645 GL |
68 | u64 lpar_id; |
69 | u64 ppe_id; | |
70 | u64 v2; | |
71 | ||
72 | result = lv1_get_logical_partition_id(&lpar_id); | |
73 | ||
74 | if (result) | |
75 | return -1; | |
76 | ||
77 | result = lv1_get_logical_ppe_id(&ppe_id); | |
78 | ||
79 | if (result) | |
80 | return -1; | |
81 | ||
82 | /* | |
83 | * n1: 0000000062690000 : ....bi.. | |
84 | * n2: 7075000000000000 : pu...... | |
85 | * n3: 0000000000000001 : ........ | |
86 | * n4: 726d5f73697a6500 : rm_size. | |
87 | */ | |
88 | ||
89 | result = lv1_get_repository_node_value(lpar_id, 0x0000000062690000ULL, | |
90 | 0x7075000000000000ULL, ppe_id, 0x726d5f73697a6500ULL, rm_size, | |
91 | &v2); | |
92 | ||
93 | printf("%s:%d: ppe_id %lu \n", __func__, __LINE__, | |
94 | (unsigned long)ppe_id); | |
95 | printf("%s:%d: lpar_id %lu \n", __func__, __LINE__, | |
96 | (unsigned long)lpar_id); | |
97 | printf("%s:%d: rm_size %llxh \n", __func__, __LINE__, *rm_size); | |
98 | ||
99 | return result ? -1 : 0; | |
100 | } | |
101 | ||
102 | void ps3_copy_vectors(void) | |
103 | { | |
104 | extern char __system_reset_kernel[]; | |
105 | ||
5761eaa3 GL |
106 | memcpy((void *)0x100, __system_reset_kernel, 512); |
107 | flush_cache((void *)0x100, 512); | |
bafdb645 GL |
108 | } |
109 | ||
6dff5b67 | 110 | void platform_init(void) |
bafdb645 | 111 | { |
bafdb645 GL |
112 | const u32 heapsize = 0x1000000 - (u32)_end; /* 16MiB */ |
113 | void *chosen; | |
114 | unsigned long ft_addr; | |
115 | u64 rm_size; | |
116 | ||
117 | console_ops.write = ps3_console_write; | |
118 | platform_ops.exit = ps3_exit; | |
119 | ||
120 | printf("\n-- PS3 bootwrapper --\n"); | |
121 | ||
122 | simple_alloc_init(_end, heapsize, 32, 64); | |
2f0dfeaa | 123 | fdt_init(_dtb_start); |
bafdb645 GL |
124 | |
125 | chosen = finddevice("/chosen"); | |
126 | ||
127 | ps3_repository_read_rm_size(&rm_size); | |
128 | dt_fixup_memory(0, rm_size); | |
129 | ||
130 | if (_initrd_end > _initrd_start) { | |
131 | setprop_val(chosen, "linux,initrd-start", (u32)(_initrd_start)); | |
132 | setprop_val(chosen, "linux,initrd-end", (u32)(_initrd_end)); | |
133 | } | |
134 | ||
135 | prep_cmdline(chosen); | |
136 | ||
137 | ft_addr = dt_ops.finalize(); | |
138 | ||
139 | ps3_copy_vectors(); | |
140 | ||
141 | printf(" flat tree at 0x%lx\n\r", ft_addr); | |
142 | ||
143 | ((kernel_entry_t)0)(ft_addr, 0, NULL); | |
144 | ||
145 | ps3_exit(); | |
146 | } |