/**
* fixup_system3 - fixup function for system 3 board
* @desc: machine description
* @param: kernel params
* @cmdline: kernel cmdline
* @mi: memory info struct
*
*/
static void __init fixup_system3(struct machine_desc *desc,
struct param_struct *params, char **cmdline, struct meminfo *mi)
{
DPRINTK( "%s\n", "START" );
ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
setup_ramdisk( 1, 0, 0, 8192 );
setup_initrd( 0xc0800000, 8*1024*1024 );
}
void setup_misc(void)
{
extern const uint32_t mboot_info;
struct multiboot_info *pmboot_info = (void *)((uintptr_t)mboot_info);
setup_memory_map(pmboot_info);
setup_cmdline(pmboot_info);
setup_initrd(pmboot_info);
}
static int __init parse_tag_initrd2(const struct tag *tag)
{
unsigned long start = 0;
if (tag->u.initrd.size) {
start = (unsigned long)phys_to_virt(tag->u.initrd.start);
setup_initrd(start, tag->u.initrd.size);
}
return 0;
}
static void __init
fixup_csb226(struct machine_desc *desc, struct param_struct *params,
char **cmdline, struct meminfo *mi)
{
SET_BANK (0, 0xa0000000, 64*1024*1024);
mi->nr_banks = 1;
#if 0
setup_ramdisk (1, 0, 0, 8192);
setup_initrd (__phys_to_virt(0xa1000000), 4*1024*1024);
ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
#endif
}
/* kernel_main()
* This is called by the low-level architecture startup routine. It sets up
* the kernel proper and generally gets the operating system off the ground.
*/
void kernel_main(unsigned int initial_stack)
{
initial_esp = initial_stack; /* as given to us by multiboot */
/* Set up the default kernel flags. Change these by adding their
* corresponding option when booting the kernel.
*/
kern.flags.preempt_kernel = TRUE;
kern.flags.debug_sched = FALSE;
kern.flags.debug_task = FALSE;
kern.flags.debug_interrupt = FALSE;
kern.flags.debug_ticks = FALSE;
kern.flags.stats = FALSE;
/* Before we do anything with the higher-level kernel, move the kernel
* stack to a known location. This has to copy and remap all absolute
* memory addresses.
*/
move_stack((void *)STACK_LOC, STACK_SIZE);
/* Extract and set any options given to the kernel */
parse_cmdline(kern.cmdline);
/* Now that all the lower-level startup has been done, we can set up
* the higher-level kernel functions.
*/
init_vt();
print_startup();
setup_initrd();
load_kernel_symbols();
init_sched();
init_task();
create_init();
/* Start the kthread daemon going to set up other kernel threads */
kthread_create(kthreadd, "kthreadd");
/* And we're done */
kprintf("Kernel startup complete in %ldms\n\n",
kern.current_time_offset.tv_msec);
/* We need to wait a bit here for all the threads to settle themselves
* before going away.
*/
sleep(100);
/* The kernel task has finished the startup, so remove the task from the
* system. This should never return, so panic if it does.
*/
task_exit();
panic("Kernel task did not die when it was supposed to :-(");
}
static void __init
fixup_graphicsmaster(struct machine_desc *desc, struct param_struct *params,
char **cmdline, struct meminfo *mi)
{
SET_BANK( 0, 0xc0000000, 16*1024*1024 );
mi->nr_banks = 1;
SET_BANK( 1, 0xc8000000, 16*1024*1024 );
mi->nr_banks = 2;
ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
setup_ramdisk( 1, 0, 0, 8192 );
setup_initrd( __phys_to_virt(0xc0800000), 4*1024*1024 );
}
void fixup_lpc(struct machine_desc *desc, struct param_struct *params, char ** cmdline, struct meminfo * mi)
{
mi->bank[0].start = 0x81000000;
mi->bank[0].size = 8 * 1024 * 1024;
mi->bank[0].node = 0;
mi->nr_banks = 1;
#ifdef CONFIG_BLK_DEV_INITRD
setup_ramdisk(1, 0, 0, CONFIG_BLK_DEV_RAM_SIZE);
setup_initrd(__phys_to_virt(0x81700000), 1024 * 1024);
ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
#endif
}
static void __init
fixup_simpad(struct machine_desc *desc, struct param_struct *params,
char **cmdline, struct meminfo *mi)
{
#ifdef CONFIG_SA1100_SIMPAD_DRAM_64MB /* DRAM */
SET_BANK( 0, 0xc0000000, 64*1024*1024 );
#else
SET_BANK( 0, 0xc0000000, 32*1024*1024 );
#endif
mi->nr_banks = 1;
ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
setup_ramdisk( 1, 0, 0, 8192 );
setup_initrd( __phys_to_virt(0xc0800000), 4*1024*1024 );
}
static void __init
ipod_fixup(struct machine_desc *desc, struct param_struct *params,
char **cmdline, struct meminfo *mi)
{
#ifdef CONFIG_BLK_DEV_RAM
extern void __ramdisk_data, __ramdisk_data_end, _text;
setup_ramdisk(1, 0, 0, CONFIG_BLK_DEV_RAM_SIZE);
setup_initrd((int)&__ramdisk_data,
(int)&__ramdisk_data_end - (int)&__ramdisk_data);
#else
strcpy(*cmdline, "root=/dev/hda2 rw");
#endif
}
MACHINE_END
#endif
#ifdef CONFIG_ARCH_IXP425_COYOTE
static void __init
fixup_coyote(struct machine_desc *desc, struct param_struct *params,
char **cmdline, struct meminfo *mi)
{
mi->bank[0].start = PHYS_OFFSET;
mi->bank[0].size = CONFIG_IXP425_SDRAM_SIZE * 1024 * 1024;
mi->bank[0].node = 0;
mi->nr_banks = 1;
#ifdef CONFIG_BLK_DEV_INITRD
setup_ramdisk(1, 0, 0, CONFIG_BLK_DEV_RAM_SIZE);
setup_initrd(phys_to_virt(0x00A00000), 4 * 1024 * 1024);
#endif
}
static void __init
fixup_l7200(struct machine_desc *desc, struct param_struct *unused,
char **cmdline, struct meminfo *mi)
{
mi->nr_banks = 1;
mi->bank[0].start = PHYS_OFFSET;
mi->bank[0].size = (32*1024*1024);
mi->bank[0].node = 0;
ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
setup_ramdisk( 1, 0, 0, CONFIG_BLK_DEV_RAM_SIZE);
setup_initrd( __phys_to_virt(0xf1000000), 0x005dac7b);
/* Serial Console COM2 and LCD */
strcpy( *cmdline, "console=tty0 console=ttyLU1,115200");
/* Serial Console COM1 and LCD */
//strcpy( *cmdline, "console=tty0 console=ttyLU0,115200");
/* Console on LCD */
//strcpy( *cmdline, "console=tty0");
}
static int __init parse_tag_initrd(const struct tag *tag)
{
setup_initrd(tag->u.initrd.start, tag->u.initrd.size);
return 0;
}