1 // SPDX-License-Identifier: GPL-2.0-only
3 * PS3 bootwrapper support.
5 * Copyright (C) 2007 Sony Computer Entertainment Inc.
6 * Copyright 2007 Sony Corp.
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,
22 u64 in_4, u64 in_5, u64 *out_1, u64 *out_2);
25 #define DBG(fmt...) printf(fmt)
27 static inline int __attribute__ ((format (printf, 1, 2))) DBG(
28 const char *fmt, ...) {return 0;}
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.
38 static char cmdline[BOOT_COMMAND_LINE_SIZE]
39 __attribute__((__section__("__builtin_cmdline")));
41 static void prep_cmdline(void *chosen)
43 if (cmdline[0] == '\0')
44 getprop(chosen, "bootargs", cmdline, BOOT_COMMAND_LINE_SIZE-1);
46 setprop_str(chosen, "bootargs", cmdline);
48 printf("cmdline: '%s'\n", cmdline);
51 static void ps3_console_write(const char *buf, int len)
55 static void ps3_exit(void)
59 /* lv1_panic will shutdown the lpar. */
61 lv1_panic(0); /* zero = do not reboot */
65 static int ps3_repository_read_rm_size(u64 *rm_size)
72 result = lv1_get_logical_partition_id(&lpar_id);
77 result = lv1_get_logical_ppe_id(&ppe_id);
83 * n1: 0000000062690000 : ....bi..
84 * n2: 7075000000000000 : pu......
85 * n3: 0000000000000001 : ........
86 * n4: 726d5f73697a6500 : rm_size.
89 result = lv1_get_repository_node_value(lpar_id, 0x0000000062690000ULL,
90 0x7075000000000000ULL, ppe_id, 0x726d5f73697a6500ULL, rm_size,
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);
99 return result ? -1 : 0;
102 void ps3_copy_vectors(void)
104 extern char __system_reset_kernel[];
106 memcpy((void *)0x100, __system_reset_kernel, 512);
107 flush_cache((void *)0x100, 512);
110 void platform_init(void)
112 const u32 heapsize = 0x1000000 - (u32)_end; /* 16MiB */
114 unsigned long ft_addr;
117 console_ops.write = ps3_console_write;
118 platform_ops.exit = ps3_exit;
120 printf("\n-- PS3 bootwrapper --\n");
122 simple_alloc_init(_end, heapsize, 32, 64);
123 fdt_init(_dtb_start);
125 chosen = finddevice("/chosen");
127 ps3_repository_read_rm_size(&rm_size);
128 dt_fixup_memory(0, rm_size);
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));
135 prep_cmdline(chosen);
137 ft_addr = dt_ops.finalize();
141 printf(" flat tree at 0x%lx\n\r", ft_addr);
143 ((kernel_entry_t)0)(ft_addr, 0, NULL);