/*
* boot zImage
* setup linux parameter , command line, and the boot linux from addr
* addr : base address of linux zImage
*/
int boot_zimage(ulong addr)
{
int ret __attribute__((unused));
ulong boot_mem_base; /* base address of bootable memory 嘎唱? */
ulong to;
ulong mach_type;
boot_mem_base = SDRAM_START;
to = addr;
if (*(ulong *)(to + 9*4) != LINUX_ZIMAGE_MAGIC) {
printf("Warning: this binary is not compressed linux kernel image\n");
printf("zImage magic = 0x%08lx\n", *(ulong *)(to + 9*4));
} else {
printf("zImage magic = 0x%08lx\n", *(ulong *)(to + 9*4));
}
/* Setup linux parameters and linux command line */
setup_linux_param(boot_mem_base + LINUX_PARAM_OFFSET);
/* Get machine type */
mach_type = MACH_TYPE_TQ2440;
printf("\nnow, booting linux......\n");
call_linux(0, mach_type, to);
return 0;
}
int linux(void)
{
int taglist = 0x30000100;
void (*fp)(int, int, int);
// load linux kernel from flash 1M: -> SDRAM 0x30008000 (size = 2M)
puts("load linux kernel from flash 0x30000: -> SDRAM 0x30008000 (size = 2M) \n");
//nand_read(0x30000, (char *)0x30008000, 0x200000);
fp = (void (*)(int, int, int))0x30008000;
puts("linux go to 0x30008000\n");
setup_linux_param(taglist);
fp(0, 193, taglist);
return 0;
}
int boot_zImage(long from, int size)
{
//puts("BootingLinux2\n\r");
int ret;
long boot_mem_base; /* base address of bootable memory */
long to;
long mach_type;
boot_mem_base = 0x30000000;
/* copy kerne image */
to = boot_mem_base + LINUX_KERNEL_OFFSET;
puts("Copy linux kernel from 0x00200000 to 0x30008000, size = 0x40000 .....\n\r ");
ret = copy_kernel_img(to, (char *)from, size);
if (ret) {
puts("failed\n\r");
return -1;
} else {
puts("Copy Kernel to SDRAM done,\n\r");
}
if (*(long *)(to + 9*4) != LINUX_ZIMAGE_MAGIC) {
puts("Warning: this binary is not compressed linux kernel image\n");
puts("zImage magic = 0x%08lx\n", *(long *)(to + 9*4));
} else {
// puts("zImage magic = 0x%08lx\n", *(long *)(to + 9*4));
;
}
/* Setup linux parameters and linux command line */
setup_linux_param(boot_mem_base + LINUX_PARAM_OFFSET);
/* Get machine type */
mach_type = MACH_TYPE_S3C2440;
puts("MACH_TYPE = 168\n\r");
/* Go Go Go */
puts("NOW, Booting Linux......\n");
call_linux(0, mach_type, to);
return 0;
}
