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kernel/linux-rt-4.4.41/arch/mips/cavium-octeon/octeon_boot.h 2.8 KB
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  /*
   * (C) Copyright 2004, 2005 Cavium Networks
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License as
   * published by the Free Software Foundation; either version 2 of
   * the License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
   * MA 02111-1307 USA
   */
  
  #ifndef __OCTEON_BOOT_H__
  #define __OCTEON_BOOT_H__
  
  #include <linux/types.h>
  
  struct boot_init_vector {
  	/* First stage address - in ram instead of flash */
  	uint64_t code_addr;
  	/* Setup code for application, NOT application entry point */
  	uint32_t app_start_func_addr;
  	/* k0 is used for global data - needs to be passed to other cores */
  	uint32_t k0_val;
  	/* Address of boot info block structure */
  	uint64_t boot_info_addr;
  	uint32_t flags;		/* flags */
  	uint32_t pad;
  };
  
  /* similar to bootloader's linux_app_boot_info but without global data */
  struct linux_app_boot_info {
  #ifdef __BIG_ENDIAN_BITFIELD
  	uint32_t labi_signature;
  	uint32_t start_core0_addr;
  	uint32_t avail_coremask;
  	uint32_t pci_console_active;
  	uint32_t icache_prefetch_disable;
  	uint32_t padding;
  	uint64_t InitTLBStart_addr;
  	uint32_t start_app_addr;
  	uint32_t cur_exception_base;
  	uint32_t no_mark_private_data;
  	uint32_t compact_flash_common_base_addr;
  	uint32_t compact_flash_attribute_base_addr;
  	uint32_t led_display_base_addr;
  #else
  	uint32_t start_core0_addr;
  	uint32_t labi_signature;
  
  	uint32_t pci_console_active;
  	uint32_t avail_coremask;
  
  	uint32_t padding;
  	uint32_t icache_prefetch_disable;
  
  	uint64_t InitTLBStart_addr;
  
  	uint32_t cur_exception_base;
  	uint32_t start_app_addr;
  
  	uint32_t compact_flash_common_base_addr;
  	uint32_t no_mark_private_data;
  
  	uint32_t led_display_base_addr;
  	uint32_t compact_flash_attribute_base_addr;
  #endif
  };
  
  /* If not to copy a lot of bootloader's structures
     here is only offset of requested member */
  #define AVAIL_COREMASK_OFFSET_IN_LINUX_APP_BOOT_BLOCK	 0x765c
  
  /* hardcoded in bootloader */
  #define	 LABI_ADDR_IN_BOOTLOADER			 0x700
  
  #define LINUX_APP_BOOT_BLOCK_NAME "linux-app-boot"
  
  #define LABI_SIGNATURE 0xAABBCC01
  
  /*  from uboot-headers/octeon_mem_map.h */
  #define EXCEPTION_BASE_INCR	(4 * 1024)
  			       /* Increment size for exception base addresses (4k minimum) */
  #define EXCEPTION_BASE_BASE	0
  #define BOOTLOADER_PRIV_DATA_BASE	(EXCEPTION_BASE_BASE + 0x800)
  #define BOOTLOADER_BOOT_VECTOR		(BOOTLOADER_PRIV_DATA_BASE)
  
  #endif /* __OCTEON_BOOT_H__ */