arch/mips/cavium-octeon/octeon_boot.h

   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__ */