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/***********************license start***************
* Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Cavium Networks nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
* This Software, including technical data, may be subject to U.S. export control
* laws, including the U.S. Export Administration Act and its associated
* regulations, and may be subject to export or import regulations in other
* countries.
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
***********************license end**************************************/
/**
* @file
*
* Interface to Octeon boot structure
*
* <hr>$Revision: $<hr>
*/
#ifndef __OCTEON_BOOT_INFO_H__
#define __OCTEON_BOOT_INFO_H__
#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
#include <linux/types.h>
#endif
#ifndef __ASSEMBLY__
/*
* This structure is access by bootloader, Linux kernel and the Linux
* user space utility "bootoct".
* In the bootloader, this structure is accessed by assembly code in start.S,
* so any changes to content or size must be reflected there as well.
* This is placed at a fixed address in DRAM, so that cores can access it
* when they come out of reset. It is used to setup the minimal bootloader
* runtime environment (stack, but no heap, global data ptr) that is needed
* by the non-boot cores to setup the environment for the applications.
* The boot_info_addr is the address of a boot_info_block_t structure
* which contains more core-specific information.
*
* The Linux kernel and the Linux bootoct utility access this structure for
* implementing CPU hotplug functionality and booting of idle cores with SE
* apps respectively.
*
*/
typedef struct
{
/* 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;
} boot_init_vector_t;
/*
* Definition of a data structure setup by the bootloader to enable Linux to
* launch SE apps on idle cores.
*/
struct linux_app_boot_info
{
uint32_t labi_signature;
uint32_t start_core0_addr;
uint32_t avail_coremask;
uint32_t pci_console_active;
uint32_t icache_prefetch_disable;
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;
#ifndef __OCTEON_NEWLIB__
#if defined(__U_BOOT__) || !defined(__KERNEL__)
gd_t gd;
#endif
#endif
};
typedef struct linux_app_boot_info linux_app_boot_info_t;
#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 */
#if defined(CVMX_BUILD_FOR_LINUX_KERNEL) || defined(__OCTEON_NEWLIB__)
#define EXCEPTION_BASE_INCR (4 * 1024)
#endif
#define OCTEON_NUM_CORES 16
/* 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)
#define BOOTLOADER_DEBUG_TRAMPOLINE (BOOTLOADER_BOOT_VECTOR + BOOT_VECTOR_SIZE) /* WORD */
#define BOOTLOADER_DEBUG_TRAMPOLINE_CORE (BOOTLOADER_DEBUG_TRAMPOLINE + 4) /* WORD */
#define OCTEON_EXCEPTION_VECTOR_BLOCK_SIZE (OCTEON_NUM_CORES*EXCEPTION_BASE_INCR) /* 16 4k blocks */
#define BOOTLOADER_DEBUG_REG_SAVE_BASE (EXCEPTION_BASE_BASE + OCTEON_EXCEPTION_VECTOR_BLOCK_SIZE)
#define BOOT_VECTOR_NUM_WORDS (8)
#define BOOT_VECTOR_SIZE ((OCTEON_NUM_CORES*4)*BOOT_VECTOR_NUM_WORDS)
#endif /* __OCTEON_BOOT_INFO_H__ */
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