| 1 | /* |
| 2 | * arch/ubicom32/kernel/os_node.c |
| 3 | * <TODO: Replace with short file description> |
| 4 | * |
| 5 | * (C) Copyright 2009, Ubicom, Inc. |
| 6 | * |
| 7 | * This file is part of the Ubicom32 Linux Kernel Port. |
| 8 | * |
| 9 | * The Ubicom32 Linux Kernel Port is free software: you can redistribute |
| 10 | * it and/or modify it under the terms of the GNU General Public License |
| 11 | * as published by the Free Software Foundation, either version 2 of the |
| 12 | * License, or (at your option) any later version. |
| 13 | * |
| 14 | * The Ubicom32 Linux Kernel Port is distributed in the hope that it |
| 15 | * will be useful, but WITHOUT ANY WARRANTY; without even the implied |
| 16 | * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 17 | * the GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with the Ubicom32 Linux Kernel Port. If not, |
| 21 | * see <http://www.gnu.org/licenses/>. |
| 22 | * |
| 23 | */ |
| 24 | #include "linux/types.h" |
| 25 | #include "linux/linkage.h" |
| 26 | #include "linux/uts.h" |
| 27 | #include "linux/utsrelease.h" |
| 28 | #include "linux/version.h" |
| 29 | #include <asm/ocm_size.h> |
| 30 | #include <asm/devtree.h> |
| 31 | #include <asm/ip5000.h> |
| 32 | |
| 33 | extern asmlinkage void *_start; |
| 34 | |
| 35 | /* |
| 36 | * This file provides static information to the boot code allowing it to decide |
| 37 | * if the os is compatible. Thus hopefully enabling the boot code to prevent |
| 38 | * accidentally booting a kernel that has no hope of running. |
| 39 | */ |
| 40 | struct os_node { |
| 41 | struct devtree_node node; |
| 42 | unsigned long version; /* Always 1 */ |
| 43 | unsigned long entry_point; |
| 44 | const char os_name[32]; /* For diagnostic purposes only */ |
| 45 | const char os_version_str[32]; |
| 46 | unsigned long os_version_num; |
| 47 | unsigned long expected_ocm_code_start;/* OS Code */ |
| 48 | unsigned long expected_ocm_data_end; /* OS Data */ |
| 49 | unsigned long expected_ram_start; |
| 50 | unsigned long expected_ram_end; |
| 51 | unsigned long arch_version; |
| 52 | unsigned long expected_os_syscall_begin; |
| 53 | unsigned long expected_os_syscall_end; |
| 54 | }; |
| 55 | |
| 56 | |
| 57 | extern void __os_syscall_begin; |
| 58 | extern void __os_syscall_end; |
| 59 | /* |
| 60 | * The os_node is only referenced by head.S and should never be modified at |
| 61 | * run-time. |
| 62 | */ |
| 63 | asmlinkage const struct os_node _os_node = { |
| 64 | .node = { |
| 65 | .next = NULL, |
| 66 | .name = { "OS" }, |
| 67 | .magic = 0x10203040, |
| 68 | }, |
| 69 | .version = 0x10002, |
| 70 | .entry_point = (unsigned long)&_start, |
| 71 | #if APP_OCM_CODE_SIZE || APP_OCM_DATA_SIZE |
| 72 | .expected_ocm_code_start = OCMSTART + APP_OCM_CODE_SIZE, |
| 73 | .expected_ocm_data_end = OCMEND - APP_OCM_DATA_SIZE, |
| 74 | #else |
| 75 | .expected_ocm_code_start = OCMEND, |
| 76 | .expected_ocm_data_end = OCMEND, |
| 77 | #endif |
| 78 | .os_name = { UTS_SYSNAME }, |
| 79 | .os_version_str = { UTS_RELEASE }, |
| 80 | .os_version_num = LINUX_VERSION_CODE, |
| 81 | .expected_ram_start = KERNELSTART, |
| 82 | .expected_ram_end = SDRAMSTART + CONFIG_MIN_RAMSIZE, |
| 83 | .arch_version = UBICOM32_ARCH_VERSION, |
| 84 | .expected_os_syscall_begin = (unsigned long)&__os_syscall_begin, |
| 85 | .expected_os_syscall_end = (unsigned long)&__os_syscall_end, |
| 86 | |
| 87 | |
| 88 | }; |
| 89 | |
