void bootlinux_atags(void *kernel, unsigned *tags,
const char *cmdline, unsigned machtype,
void *ramdisk, unsigned ramdisk_size)
{
unsigned *ptr = tags;
int cmdline_len = 0;
int have_cmdline = 0;
/* CORE */
*ptr++ = 5;
*ptr++ = 0x54410001;
*ptr++ = 0;
*ptr++ = 0;
*ptr++ = 0;
if (ramdisk_size) {
*ptr++ = 4;
*ptr++ = 0x54420005;
*ptr++ = (unsigned)ramdisk;
*ptr++ = ramdisk_size;
}
ptr = target_atag_mem(ptr);
*ptr++ = 3;
*ptr++ = 0x54410007;
*ptr++ = 0;
if (cmdline && cmdline[0]) {
cmdline_len = strlen(cmdline);
have_cmdline = 1;
}
if (cmdline_len > 0) {
const char *src;
char *dst;
unsigned n;
/* include terminating 0 and round up to a word multiple */
n = (cmdline_len + 4) & (~3);
*ptr++ = (n / 4) + 2;
*ptr++ = 0x54410009;
dst = (char *)ptr;
if (have_cmdline) {
src = cmdline;
while ((*dst++ = *src++));
}
ptr += (n / 4);
}
/* END */
*ptr++ = 0;
*ptr++ = 0;
bootlinux_direct(kernel, machtype, (unsigned *)tags);
}
void boot_linux(void *kernel, unsigned *tags,
const char *cmdline, unsigned machtype,
void *ramdisk, unsigned ramdisk_size)
{
unsigned *ptr = tags;
unsigned pcount = 0;
void (*entry)(unsigned,unsigned,unsigned*) = kernel;
struct ptable *ptable;
int cmdline_len = 0;
int have_cmdline = 0;
int pause_at_bootup = 0;
/* CORE */
*ptr++ = 2;
*ptr++ = 0x54410001;
if (ramdisk_size) {
*ptr++ = 4;
*ptr++ = 0x54420005;
*ptr++ = (unsigned)ramdisk;
*ptr++ = ramdisk_size;
}
ptr = target_atag_mem(ptr);
if (!target_is_emmc_boot()) {
/* Skip NAND partition ATAGS for eMMC boot */
if ((ptable = flash_get_ptable()) && (ptable->count != 0)) {
int i;
for(i=0; i < ptable->count; i++) {
struct ptentry *ptn;
ptn = ptable_get(ptable, i);
if (ptn->type == TYPE_APPS_PARTITION)
pcount++;
}
*ptr++ = 2 + (pcount * (sizeof(struct atag_ptbl_entry) /
sizeof(unsigned)));
*ptr++ = 0x4d534d70;
for (i = 0; i < ptable->count; ++i)
ptentry_to_tag(&ptr, ptable_get(ptable, i));
}
}
if (cmdline && cmdline[0]) {
cmdline_len = strlen(cmdline);
have_cmdline = 1;
}
if (target_is_emmc_boot()) {
cmdline_len += strlen(emmc_cmdline);
}
if (target_pause_for_battery_charge()) {
pause_at_bootup = 1;
cmdline_len += strlen(battchg_pause);
}
if (cmdline_len > 0) {
const char *src;
char *dst;
unsigned n;
/* include terminating 0 and round up to a word multiple */
n = (cmdline_len + 4) & (~3);
*ptr++ = (n / 4) + 2;
*ptr++ = 0x54410009;
dst = (char *)ptr;
if (have_cmdline) {
src = cmdline;
while ((*dst++ = *src++));
}
if (target_is_emmc_boot()) {
src = emmc_cmdline;
if (have_cmdline) --dst;
have_cmdline = 1;
while ((*dst++ = *src++));
}
if (pause_at_bootup) {
src = battchg_pause;
if (have_cmdline) --dst;
while ((*dst++ = *src++));
}
ptr += (n / 4);
}
/* END */
*ptr++ = 0;
*ptr++ = 0;
dprintf(INFO, "booting linux @ %p, ramdisk @ %p (%d)\n",
kernel, ramdisk, ramdisk_size);
if (cmdline)
dprintf(INFO, "cmdline: %s\n", cmdline);
enter_critical_section();
platform_uninit_timer();
arch_disable_cache(UCACHE);
arch_disable_mmu();
#if DISPLAY_SPLASH_SCREEN
display_shutdown();
#endif
entry(0, machtype, tags);
}
