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/*
* arch/ubicom32/kernel/os_node.c
* <TODO: Replace with short file description>
*
* (C) Copyright 2009, Ubicom, Inc.
*
* This file is part of the Ubicom32 Linux Kernel Port.
*
* The Ubicom32 Linux Kernel Port 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.
*
* The Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port. If not,
* see <http://www.gnu.org/licenses/>.
*
*/
#include "linux/types.h"
#include "linux/linkage.h"
#include "linux/uts.h"
#include "linux/utsrelease.h"
#include "linux/version.h"
#include <asm/ocm_size.h>
#include <asm/devtree.h>
#include <asm/ip5000.h>
extern asmlinkage void *_start;
/*
* This file provides static information to the boot code allowing it to decide
* if the os is compatible. Thus hopefully enabling the boot code to prevent
* accidentally booting a kernel that has no hope of running.
*/
struct os_node {
struct devtree_node node;
unsigned long version; /* Always 1 */
unsigned long entry_point;
const char os_name[32]; /* For diagnostic purposes only */
const char os_version_str[32];
unsigned long os_version_num;
unsigned long expected_ocm_code_start;/* OS Code */
unsigned long expected_ocm_data_end; /* OS Data */
unsigned long expected_ram_start;
unsigned long expected_ram_end;
unsigned long arch_version;
unsigned long expected_os_syscall_begin;
unsigned long expected_os_syscall_end;
};
extern void __os_syscall_begin;
extern void __os_syscall_end;
/*
* The os_node is only referenced by head.S and should never be modified at
* run-time.
*/
asmlinkage const struct os_node _os_node = {
.node = {
.next = NULL,
.name = { "OS" },
.magic = 0x10203040,
},
.version = 0x10002,
.entry_point = (unsigned long)&_start,
#if APP_OCM_CODE_SIZE || APP_OCM_DATA_SIZE
.expected_ocm_code_start = OCMSTART + APP_OCM_CODE_SIZE,
.expected_ocm_data_end = OCMEND - APP_OCM_DATA_SIZE,
#else
.expected_ocm_code_start = OCMEND,
.expected_ocm_data_end = OCMEND,
#endif
.os_name = { UTS_SYSNAME },
.os_version_str = { UTS_RELEASE },
.os_version_num = LINUX_VERSION_CODE,
.expected_ram_start = KERNELSTART,
.expected_ram_end = SDRAMSTART + CONFIG_MIN_RAMSIZE,
.arch_version = UBICOM32_ARCH_VERSION,
.expected_os_syscall_begin = (unsigned long)&__os_syscall_begin,
.expected_os_syscall_end = (unsigned long)&__os_syscall_end,
};
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