xref: /linux/arch/mips/cavium-octeon/octeon_boot.h (revision 75bf465f0bc33e9b776a46d6a1b9b990f5fb7c37)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * (C) Copyright 2004, 2005 Cavium Networks
4  */
5 
6 #ifndef __OCTEON_BOOT_H__
7 #define __OCTEON_BOOT_H__
8 
9 #include <linux/types.h>
10 
11 struct boot_init_vector {
12 	/* First stage address - in ram instead of flash */
13 	uint64_t code_addr;
14 	/* Setup code for application, NOT application entry point */
15 	uint32_t app_start_func_addr;
16 	/* k0 is used for global data - needs to be passed to other cores */
17 	uint32_t k0_val;
18 	/* Address of boot info block structure */
19 	uint64_t boot_info_addr;
20 	uint32_t flags;		/* flags */
21 	uint32_t pad;
22 };
23 
24 /* similar to bootloader's linux_app_boot_info but without global data */
25 struct linux_app_boot_info {
26 #ifdef __BIG_ENDIAN_BITFIELD
27 	uint32_t labi_signature;
28 	uint32_t start_core0_addr;
29 	uint32_t avail_coremask;
30 	uint32_t pci_console_active;
31 	uint32_t icache_prefetch_disable;
32 	uint32_t padding;
33 	uint64_t InitTLBStart_addr;
34 	uint32_t start_app_addr;
35 	uint32_t cur_exception_base;
36 	uint32_t no_mark_private_data;
37 	uint32_t compact_flash_common_base_addr;
38 	uint32_t compact_flash_attribute_base_addr;
39 	uint32_t led_display_base_addr;
40 #else
41 	uint32_t start_core0_addr;
42 	uint32_t labi_signature;
43 
44 	uint32_t pci_console_active;
45 	uint32_t avail_coremask;
46 
47 	uint32_t padding;
48 	uint32_t icache_prefetch_disable;
49 
50 	uint64_t InitTLBStart_addr;
51 
52 	uint32_t cur_exception_base;
53 	uint32_t start_app_addr;
54 
55 	uint32_t compact_flash_common_base_addr;
56 	uint32_t no_mark_private_data;
57 
58 	uint32_t led_display_base_addr;
59 	uint32_t compact_flash_attribute_base_addr;
60 #endif
61 };
62 
63 /* If not to copy a lot of bootloader's structures
64    here is only offset of requested member */
65 #define AVAIL_COREMASK_OFFSET_IN_LINUX_APP_BOOT_BLOCK	 0x765c
66 
67 /* hardcoded in bootloader */
68 #define	 LABI_ADDR_IN_BOOTLOADER			 0x700
69 
70 #define LINUX_APP_BOOT_BLOCK_NAME "linux-app-boot"
71 
72 #define LABI_SIGNATURE 0xAABBCC01
73 
74 /*  from uboot-headers/octeon_mem_map.h */
75 #define EXCEPTION_BASE_INCR	(4 * 1024)
76 			       /* Increment size for exception base addresses (4k minimum) */
77 #define EXCEPTION_BASE_BASE	0
78 #define BOOTLOADER_PRIV_DATA_BASE	(EXCEPTION_BASE_BASE + 0x800)
79 #define BOOTLOADER_BOOT_VECTOR		(BOOTLOADER_PRIV_DATA_BASE)
80 
81 #endif /* __OCTEON_BOOT_H__ */
82