1 /* 2 * PS3 bootwrapper support. 3 * 4 * Copyright (C) 2007 Sony Computer Entertainment Inc. 5 * Copyright 2007 Sony Corp. 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; version 2 of the License. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21 #include <stdarg.h> 22 #include <stddef.h> 23 #include "types.h" 24 #include "elf.h" 25 #include "string.h" 26 #include "stdio.h" 27 #include "page.h" 28 #include "ops.h" 29 30 extern s64 lv1_panic(u64 in_1); 31 extern s64 lv1_get_logical_partition_id(u64 *out_1); 32 extern s64 lv1_get_logical_ppe_id(u64 *out_1); 33 extern s64 lv1_get_repository_node_value(u64 in_1, u64 in_2, u64 in_3, 34 u64 in_4, u64 in_5, u64 *out_1, u64 *out_2); 35 36 #ifdef DEBUG 37 #define DBG(fmt...) printf(fmt) 38 #else 39 static inline int __attribute__ ((format (printf, 1, 2))) DBG( 40 const char *fmt, ...) {return 0;} 41 #endif 42 43 BSS_STACK(4096); 44 45 /* A buffer that may be edited by tools operating on a zImage binary so as to 46 * edit the command line passed to vmlinux (by setting /chosen/bootargs). 47 * The buffer is put in it's own section so that tools may locate it easier. 48 */ 49 static char cmdline[COMMAND_LINE_SIZE] 50 __attribute__((__section__("__builtin_cmdline"))); 51 52 static void prep_cmdline(void *chosen) 53 { 54 if (cmdline[0] == '\0') 55 getprop(chosen, "bootargs", cmdline, COMMAND_LINE_SIZE-1); 56 else 57 setprop_str(chosen, "bootargs", cmdline); 58 59 printf("cmdline: '%s'\n", cmdline); 60 } 61 62 static void ps3_console_write(const char *buf, int len) 63 { 64 } 65 66 static void ps3_exit(void) 67 { 68 printf("ps3_exit\n"); 69 70 /* lv1_panic will shutdown the lpar. */ 71 72 lv1_panic(0); /* zero = do not reboot */ 73 while (1); 74 } 75 76 static int ps3_repository_read_rm_size(u64 *rm_size) 77 { 78 s64 result; 79 u64 lpar_id; 80 u64 ppe_id; 81 u64 v2; 82 83 result = lv1_get_logical_partition_id(&lpar_id); 84 85 if (result) 86 return -1; 87 88 result = lv1_get_logical_ppe_id(&ppe_id); 89 90 if (result) 91 return -1; 92 93 /* 94 * n1: 0000000062690000 : ....bi.. 95 * n2: 7075000000000000 : pu...... 96 * n3: 0000000000000001 : ........ 97 * n4: 726d5f73697a6500 : rm_size. 98 */ 99 100 result = lv1_get_repository_node_value(lpar_id, 0x0000000062690000ULL, 101 0x7075000000000000ULL, ppe_id, 0x726d5f73697a6500ULL, rm_size, 102 &v2); 103 104 printf("%s:%d: ppe_id %lu \n", __func__, __LINE__, 105 (unsigned long)ppe_id); 106 printf("%s:%d: lpar_id %lu \n", __func__, __LINE__, 107 (unsigned long)lpar_id); 108 printf("%s:%d: rm_size %llxh \n", __func__, __LINE__, *rm_size); 109 110 return result ? -1 : 0; 111 } 112 113 void ps3_copy_vectors(void) 114 { 115 extern char __system_reset_kernel[]; 116 117 memcpy((void *)0x100, __system_reset_kernel, 0x100); 118 flush_cache((void *)0x100, 0x100); 119 } 120 121 void platform_init(void) 122 { 123 const u32 heapsize = 0x1000000 - (u32)_end; /* 16MiB */ 124 void *chosen; 125 unsigned long ft_addr; 126 u64 rm_size; 127 128 console_ops.write = ps3_console_write; 129 platform_ops.exit = ps3_exit; 130 131 printf("\n-- PS3 bootwrapper --\n"); 132 133 simple_alloc_init(_end, heapsize, 32, 64); 134 ft_init(_dtb_start, 0, 4); 135 136 chosen = finddevice("/chosen"); 137 138 ps3_repository_read_rm_size(&rm_size); 139 dt_fixup_memory(0, rm_size); 140 141 if (_initrd_end > _initrd_start) { 142 setprop_val(chosen, "linux,initrd-start", (u32)(_initrd_start)); 143 setprop_val(chosen, "linux,initrd-end", (u32)(_initrd_end)); 144 } 145 146 prep_cmdline(chosen); 147 148 ft_addr = dt_ops.finalize(); 149 150 ps3_copy_vectors(); 151 152 printf(" flat tree at 0x%lx\n\r", ft_addr); 153 154 ((kernel_entry_t)0)(ft_addr, 0, NULL); 155 156 ps3_exit(); 157 } 158