arch/mips/cavium-octeon/octeon_boot.h

   1 /*
   2  * (C) Copyright 2004, 2005 Cavium Networks
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of
   7  * the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  17  * MA 02111-1307 USA
  18  */
  19
  20 #ifndef __OCTEON_BOOT_H__
  21 #define __OCTEON_BOOT_H__
  22
  23 #include <linux/types.h>
  24
  25 struct boot_init_vector {
  26         /* First stage address - in ram instead of flash */
  27         uint64_t code_addr;
  28         /* Setup code for application, NOT application entry point */
  29         uint32_t app_start_func_addr;
  30         /* k0 is used for global data - needs to be passed to other cores */
  31         uint32_t k0_val;
  32         /* Address of boot info block structure */
  33         uint64_t boot_info_addr;
  34         uint32_t flags;         /* flags */
  35         uint32_t pad;
  36 };
  37
  38 /* similar to bootloader's linux_app_boot_info but without global data */
  39 struct linux_app_boot_info {
  40 #ifdef __BIG_ENDIAN_BITFIELD
  41         uint32_t labi_signature;
  42         uint32_t start_core0_addr;
  43         uint32_t avail_coremask;
  44         uint32_t pci_console_active;
  45         uint32_t icache_prefetch_disable;
  46         uint32_t padding;
  47         uint64_t InitTLBStart_addr;
  48         uint32_t start_app_addr;
  49         uint32_t cur_exception_base;
  50         uint32_t no_mark_private_data;
  51         uint32_t compact_flash_common_base_addr;
  52         uint32_t compact_flash_attribute_base_addr;
  53         uint32_t led_display_base_addr;
  54 #else
  55         uint32_t start_core0_addr;
  56         uint32_t labi_signature;
  57
  58         uint32_t pci_console_active;
  59         uint32_t avail_coremask;
  60
  61         uint32_t padding;
  62         uint32_t icache_prefetch_disable;
  63
  64         uint64_t InitTLBStart_addr;
  65
  66         uint32_t cur_exception_base;
  67         uint32_t start_app_addr;
  68
  69         uint32_t compact_flash_common_base_addr;
  70         uint32_t no_mark_private_data;
  71
  72         uint32_t led_display_base_addr;
  73         uint32_t compact_flash_attribute_base_addr;
  74 #endif
  75 };
  76
  77 /* If not to copy a lot of bootloader's structures
  78    here is only offset of requested member */
  79 #define AVAIL_COREMASK_OFFSET_IN_LINUX_APP_BOOT_BLOCK    0x765c
  80
  81 /* hardcoded in bootloader */
  82 #define  LABI_ADDR_IN_BOOTLOADER                         0x700
  83
  84 #define LINUX_APP_BOOT_BLOCK_NAME "linux-app-boot"
  85
  86 #define LABI_SIGNATURE 0xAABBCC01
  87
  88 /*  from uboot-headers/octeon_mem_map.h */
  89 #define EXCEPTION_BASE_INCR     (4 * 1024)
  90                                /* Increment size for exception base addresses (4k minimum) */
  91 #define EXCEPTION_BASE_BASE     0
  92 #define BOOTLOADER_PRIV_DATA_BASE       (EXCEPTION_BASE_BASE + 0x800)
  93 #define BOOTLOADER_BOOT_VECTOR          (BOOTLOADER_PRIV_DATA_BASE)
  94
  95 #endif /* __OCTEON_BOOT_H__ */