diff options
Diffstat (limited to 'arch/microblaze/kernel/setup.c')
| -rw-r--r-- | arch/microblaze/kernel/setup.c | 62 |
1 files changed, 33 insertions, 29 deletions
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c index eb6b41758e2..8709bea0960 100644 --- a/arch/microblaze/kernel/setup.c +++ b/arch/microblaze/kernel/setup.c @@ -42,10 +42,6 @@ char cmd_line[COMMAND_LINE_SIZE]; void __init setup_arch(char **cmdline_p) { -#ifdef CONFIG_CMDLINE_FORCE - strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE); - strlcpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE); -#endif *cmdline_p = cmd_line; console_verbose(); @@ -102,14 +98,34 @@ void __init machine_early_init(const char *cmdline, unsigned int ram, { unsigned long *src, *dst = (unsigned long *)0x0; + /* If CONFIG_MTD_UCLINUX is defined, assume ROMFS is at the + * end of kernel. There are two position which we want to check. + * The first is __init_end and the second __bss_start. + */ +#ifdef CONFIG_MTD_UCLINUX + int romfs_size; + unsigned int romfs_base; + char *old_klimit = klimit; + + romfs_base = (ram ? ram : (unsigned int)&__init_end); + romfs_size = PAGE_ALIGN(get_romfs_len((unsigned *)romfs_base)); + if (!romfs_size) { + romfs_base = (unsigned int)&__bss_start; + romfs_size = PAGE_ALIGN(get_romfs_len((unsigned *)romfs_base)); + } + + /* Move ROMFS out of BSS before clearing it */ + if (romfs_size > 0) { + memmove(&_ebss, (int *)romfs_base, romfs_size); + klimit += romfs_size; + } +#endif + /* clearing bss section */ memset(__bss_start, 0, __bss_stop-__bss_start); memset(_ssbss, 0, _esbss-_ssbss); - /* - * Copy command line passed from bootloader, or use default - * if none provided, or forced - */ + /* Copy command line passed from bootloader */ #ifndef CONFIG_CMDLINE_BOOL if (cmdline && cmdline[0] != '\0') strlcpy(cmd_line, cmdline, COMMAND_LINE_SIZE); @@ -126,27 +142,15 @@ void __init machine_early_init(const char *cmdline, unsigned int ram, printk(KERN_NOTICE "Found FDT at 0x%08x\n", fdt); #ifdef CONFIG_MTD_UCLINUX - { - int size; - unsigned int romfs_base; - romfs_base = (ram ? ram : (unsigned int)&__init_end); - /* if CONFIG_MTD_UCLINUX_EBSS is defined, assume ROMFS is at the - * end of kernel, which is ROMFS_LOCATION defined above. */ - size = PAGE_ALIGN(get_romfs_len((unsigned *)romfs_base)); - early_printk("Found romfs @ 0x%08x (0x%08x)\n", - romfs_base, size); - early_printk("#### klimit %p ####\n", klimit); - BUG_ON(size < 0); /* What else can we do? */ - - /* Use memmove to handle likely case of memory overlap */ - early_printk("Moving 0x%08x bytes from 0x%08x to 0x%08x\n", - size, romfs_base, (unsigned)&_ebss); - memmove(&_ebss, (int *)romfs_base, size); - - /* update klimit */ - klimit += PAGE_ALIGN(size); - early_printk("New klimit: 0x%08x\n", (unsigned)klimit); - } + early_printk("Found romfs @ 0x%08x (0x%08x)\n", + romfs_base, romfs_size); + early_printk("#### klimit %p ####\n", old_klimit); + BUG_ON(romfs_size < 0); /* What else can we do? */ + + early_printk("Moved 0x%08x bytes from 0x%08x to 0x%08x\n", + romfs_size, romfs_base, (unsigned)&_ebss); + + early_printk("New klimit: 0x%08x\n", (unsigned)klimit); #endif for (src = __ivt_start; src < __ivt_end; src++, dst++) |