04b6fa8330
facilities as well as support for the Octeon 2 family of SoCs.
XXX Note that with our antediluvian assembler, we can't support some Octeon 2
instructions and fall back to using the old ones instead.
153 lines
5.4 KiB
C
153 lines
5.4 KiB
C
/***********************license start***************
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* Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights
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* reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Cavium Networks nor the names of
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* its contributors may be used to endorse or promote products
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* derived from this software without specific prior written
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* permission.
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* This Software, including technical data, may be subject to U.S. export control
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* laws, including the U.S. Export Administration Act and its associated
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* regulations, and may be subject to export or import regulations in other
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* countries.
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
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* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
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* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
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* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
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* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
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* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
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* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
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* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
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* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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***********************license end**************************************/
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/**
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* @file
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*
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* Interface to Octeon boot structure
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*
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* <hr>$Revision: $<hr>
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*/
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#ifndef __OCTEON_BOOT_INFO_H__
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#define __OCTEON_BOOT_INFO_H__
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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#include <linux/types.h>
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#endif
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#ifndef __ASSEMBLY__
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/*
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* This structure is access by bootloader, Linux kernel and the Linux
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* user space utility "bootoct".
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* In the bootloader, this structure is accessed by assembly code in start.S,
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* so any changes to content or size must be reflected there as well.
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* This is placed at a fixed address in DRAM, so that cores can access it
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* when they come out of reset. It is used to setup the minimal bootloader
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* runtime environment (stack, but no heap, global data ptr) that is needed
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* by the non-boot cores to setup the environment for the applications.
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* The boot_info_addr is the address of a boot_info_block_t structure
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* which contains more core-specific information.
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*
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* The Linux kernel and the Linux bootoct utility access this structure for
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* implementing CPU hotplug functionality and booting of idle cores with SE
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* apps respectively.
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*
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*/
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typedef struct
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{
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/* First stage address - in ram instead of flash */
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uint64_t code_addr;
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/* Setup code for application, NOT application entry point */
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uint32_t app_start_func_addr;
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/* k0 is used for global data - needs to be passed to other cores */
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uint32_t k0_val;
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/* Address of boot info block structure */
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uint64_t boot_info_addr;
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uint32_t flags; /* flags */
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uint32_t pad;
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} boot_init_vector_t;
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/*
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* Definition of a data structure setup by the bootloader to enable Linux to
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* launch SE apps on idle cores.
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*/
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struct linux_app_boot_info
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{
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uint32_t labi_signature;
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uint32_t start_core0_addr;
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uint32_t avail_coremask;
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uint32_t pci_console_active;
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uint32_t icache_prefetch_disable;
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uint64_t InitTLBStart_addr;
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uint32_t start_app_addr;
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uint32_t cur_exception_base;
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uint32_t no_mark_private_data;
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uint32_t compact_flash_common_base_addr;
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uint32_t compact_flash_attribute_base_addr;
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uint32_t led_display_base_addr;
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#ifndef __OCTEON_NEWLIB__
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#if defined(__U_BOOT__) || !defined(__KERNEL__)
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gd_t gd;
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#endif
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#endif
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};
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typedef struct linux_app_boot_info linux_app_boot_info_t;
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#endif
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/* If not to copy a lot of bootloader's structures
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here is only offset of requested member */
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#define AVAIL_COREMASK_OFFSET_IN_LINUX_APP_BOOT_BLOCK 0x765c
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/* hardcoded in bootloader */
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#define LABI_ADDR_IN_BOOTLOADER 0x700
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#define LINUX_APP_BOOT_BLOCK_NAME "linux-app-boot"
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#define LABI_SIGNATURE 0xAABBCC01
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/* from uboot-headers/octeon_mem_map.h */
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#if defined(CVMX_BUILD_FOR_LINUX_KERNEL) || defined(__OCTEON_NEWLIB__)
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#define EXCEPTION_BASE_INCR (4 * 1024)
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#endif
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#define OCTEON_NUM_CORES 16
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/* Increment size for exception base addresses (4k minimum) */
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#define EXCEPTION_BASE_BASE 0
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#define BOOTLOADER_PRIV_DATA_BASE (EXCEPTION_BASE_BASE + 0x800)
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#define BOOTLOADER_BOOT_VECTOR (BOOTLOADER_PRIV_DATA_BASE)
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#define BOOTLOADER_DEBUG_TRAMPOLINE (BOOTLOADER_BOOT_VECTOR + BOOT_VECTOR_SIZE) /* WORD */
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#define BOOTLOADER_DEBUG_TRAMPOLINE_CORE (BOOTLOADER_DEBUG_TRAMPOLINE + 4) /* WORD */
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#define OCTEON_EXCEPTION_VECTOR_BLOCK_SIZE (OCTEON_NUM_CORES*EXCEPTION_BASE_INCR) /* 16 4k blocks */
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#define BOOTLOADER_DEBUG_REG_SAVE_BASE (EXCEPTION_BASE_BASE + OCTEON_EXCEPTION_VECTOR_BLOCK_SIZE)
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#define BOOT_VECTOR_NUM_WORDS (8)
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#define BOOT_VECTOR_SIZE ((OCTEON_NUM_CORES*4)*BOOT_VECTOR_NUM_WORDS)
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#endif /* __OCTEON_BOOT_INFO_H__ */
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