diff options
Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/kernel/os_node.c')
| -rw-r--r-- | target/linux/ubicom32/files/arch/ubicom32/kernel/os_node.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/kernel/os_node.c b/target/linux/ubicom32/files/arch/ubicom32/kernel/os_node.c new file mode 100644 index 000000000..9e014d5cb --- /dev/null +++ b/target/linux/ubicom32/files/arch/ubicom32/kernel/os_node.c @@ -0,0 +1,88 @@ +/* + * 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, + + +}; |