/*
* Do all the stuff that locore normally does before calling main().
* Process arguments passed to us by the prom monitor.
* Return the first page address following the system.
*/
void
mach_init(int x_boothowto, int x_bootdev, int x_bootname, int x_maxmem)
{
u_long first, last;
char *kernend;
struct btinfo_magic *bi_magic;
struct btinfo_bootarg *bi_arg;
struct btinfo_systype *bi_systype;
#if NKSYMS || defined(DDB) || defined(MODULAR)
struct btinfo_symtab *bi_sym;
int nsym = 0;
char *ssym, *esym;
ssym = esym = NULL; /* XXX: gcc */
#endif
bi_arg = NULL;
bootinfo = (void *)BOOTINFO_ADDR; /* XXX */
bi_magic = lookup_bootinfo(BTINFO_MAGIC);
if (bi_magic && bi_magic->magic == BOOTINFO_MAGIC) {
bi_arg = lookup_bootinfo(BTINFO_BOOTARG);
if (bi_arg) {
x_boothowto = bi_arg->howto;
x_bootdev = bi_arg->bootdev;
x_maxmem = bi_arg->maxmem;
}
#if NKSYMS || defined(DDB) || defined(MODULAR)
bi_sym = lookup_bootinfo(BTINFO_SYMTAB);
if (bi_sym) {
nsym = bi_sym->nsym;
ssym = (void *)bi_sym->ssym;
esym = (void *)bi_sym->esym;
}
#endif
bi_systype = lookup_bootinfo(BTINFO_SYSTYPE);
if (bi_systype)
systype = bi_systype->type;
} else {
/*
* Running kernel is loaded by non-native loader;
* clear the BSS segment here.
*/
memset(edata, 0, end - edata);
}
if (systype == 0)
systype = NEWS3400; /* XXX compatibility for old boot */
#ifdef news5000
if (systype == NEWS5000) {
int i;
char *bootspec = (char *)x_bootdev;
if (bi_arg == NULL)
panic("news5000 requires BTINFO_BOOTARG to boot");
_sip = (void *)bi_arg->sip;
x_maxmem = _sip->apbsi_memsize;
x_maxmem -= 0x00100000; /* reserve 1MB for ROM monitor */
if (strncmp(bootspec, "scsi", 4) == 0) {
x_bootdev = (5 << 28) | 0; /* magic, sd */
bootspec += 4;
if (*bootspec != '(' /*)*/)
goto bootspec_end;
i = strtoul(bootspec + 1, &bootspec, 10);
x_bootdev |= (i << 24); /* bus */
if (*bootspec != ',')
goto bootspec_end;
i = strtoul(bootspec + 1, &bootspec, 10);
x_bootdev |= (i / 10) << 20; /* controller */
x_bootdev |= (i % 10) << 16; /* unit */
if (*bootspec != ',')
goto bootspec_end;
i = strtoul(bootspec + 1, &bootspec, 10);
x_bootdev |= (i << 8); /* partition */
}
bootspec_end:
consinit();
}
#endif
/*
* Save parameters into kernel work area.
*/
*(int *)(MIPS_PHYS_TO_KSEG1(MACH_MAXMEMSIZE_ADDR)) = x_maxmem;
*(int *)(MIPS_PHYS_TO_KSEG1(MACH_BOOTDEV_ADDR)) = x_bootdev;
*(int *)(MIPS_PHYS_TO_KSEG1(MACH_BOOTSW_ADDR)) = x_boothowto;
kernend = (char *)mips_round_page(end);
#if NKSYMS || defined(DDB) || defined(MODULAR)
if (nsym)
kernend = (char *)mips_round_page(esym);
#endif
/*
* Set the VM page size.
*/
uvm_setpagesize();
boothowto = x_boothowto;
bootdev = x_bootdev;
physmem = btoc(x_maxmem);
/*
* Now that we know how much memory we have, initialize the
* mem cluster array.
*/
mem_clusters[0].start = 0; /* XXX is this correct? */
mem_clusters[0].size = ctob(physmem);
mem_cluster_cnt = 1;
/*
* Copy exception-dispatch code down to exception vector.
* Initialize locore-function vector.
* Clear out the I and D caches.
*/
mips_vector_init(NULL, false);
/*
* We know the CPU type now. Initialize our DMA tags (might
* need this early).
*/
newsmips_bus_dma_init();
#if NKSYMS || defined(DDB) || defined(MODULAR)
if (nsym)
ksyms_addsyms_elf(esym - ssym, ssym, esym);
#endif
#ifdef KADB
boothowto |= RB_KDB;
#endif
/*
* Check to see if a mini-root was loaded into memory. It resides
* at the start of the next page just after the end of BSS.
*/
if (boothowto & RB_MINIROOT)
kernend += round_page(mfs_initminiroot(kernend));
/*
* Load the rest of the available pages into the VM system.
*/
first = round_page(MIPS_KSEG0_TO_PHYS(kernend));
last = mem_clusters[0].start + mem_clusters[0].size;
uvm_page_physload(atop(first), atop(last), atop(first), atop(last),
VM_FREELIST_DEFAULT);
/*
* Initialize error message buffer (at end of core).
*/
mips_init_msgbuf();
/*
* Initialize the virtual memory system.
*/
pmap_bootstrap();
/*
* Allocate uarea page for lwp0 and set it.
*/
mips_init_lwp0_uarea();
/*
* Determine what model of computer we are running on.
*/
switch (systype) {
#ifdef news3400
case NEWS3400:
news3400_init();
strcpy(cpu_model, idrom.id_machine);
if (strcmp(cpu_model, "news3400") == 0 ||
strcmp(cpu_model, "news3200") == 0 ||
strcmp(cpu_model, "news3700") == 0) {
/*
* Set up interrupt handling and I/O addresses.
*/
hardware_intr = news3400_intr;
cpuspeed = 10;
} else {
printf("kernel not configured for machine %s\n",
cpu_model);
}
break;
#endif
#ifdef news5000
case NEWS5000:
news5000_init();
strcpy(cpu_model, idrom.id_machine);
if (strcmp(cpu_model, "news5000") == 0 ||
strcmp(cpu_model, "news5900") == 0) {
/*
* Set up interrupt handling and I/O addresses.
*/
hardware_intr = news5000_intr;
cpuspeed = 50; /* ??? XXX */
} else {
printf("kernel not configured for machine %s\n",
cpu_model);
}
break;
#endif
default:
printf("kernel not configured for systype %d\n", systype);
break;
}
}
/*
* Do all the stuff that locore normally does before calling main().
*/
void
mach_init(int32_t memsize32, u_int bim, int32_t bip32)
{
intptr_t memsize = (int32_t)memsize32;
char *kernend;
char *bip = (char *)(intptr_t)(int32_t)bip32;
u_long first, last;
extern char edata[], end[];
const char *bi_msg;
#if NKSYMS || defined(DDB) || defined(MODULAR)
char *ssym = 0;
struct btinfo_symtab *bi_syms;
#endif
struct btinfo_howto *bi_howto;
/*
* Clear the BSS segment (if needed).
*/
if (memcmp(((Elf_Ehdr *)end)->e_ident, ELFMAG, SELFMAG) == 0 &&
((Elf_Ehdr *)end)->e_ident[EI_CLASS] == ELFCLASS) {
esym = end;
#if NKSYMS || defined(DDB) || defined(MODULAR)
esym += ((Elf_Ehdr *)end)->e_entry;
#endif
kernend = (char *)mips_round_page(esym);
/*
* We don't have to clear BSS here
* since our bootloader already does it.
*/
#if 0
memset(edata, 0, end - edata);
#endif
} else {
kernend = (void *)mips_round_page(end);
/*
* No symbol table, so assume we are loaded by
* the firmware directly with "bfd" command.
* The firmware loader doesn't clear BSS of
* a loaded kernel, so do it here.
*/
memset(edata, 0, kernend - edata);
}
/*
* Copy exception-dispatch code down to exception vector.
* Initialize locore-function vector.
* Clear out the I and D caches.
*/
mips_vector_init(NULL, false);
/* Check for valid bootinfo passed from bootstrap */
if (bim == BOOTINFO_MAGIC) {
struct btinfo_magic *bi_magic;
bootinfo = bip;
bi_magic = lookup_bootinfo(BTINFO_MAGIC);
if (bi_magic == NULL) {
bi_msg = "missing bootinfo structure";
bim = (uintptr_t)bip;
} else if (bi_magic->magic != BOOTINFO_MAGIC) {
bi_msg = "invalid bootinfo structure";
bim = bi_magic->magic;
} else
bi_msg = NULL;
} else {
bi_msg = "invalid bootinfo (standalone boot?)";
}
#if NKSYMS || defined(DDB) || defined(MODULAR)
bi_syms = lookup_bootinfo(BTINFO_SYMTAB);
/* Load symbol table if present */
if (bi_syms != NULL) {
ssym = (void *)(intptr_t)bi_syms->ssym;
esym = (void *)(intptr_t)bi_syms->esym;
kernend = (void *)mips_round_page(esym);
}
#endif
bi_howto = lookup_bootinfo(BTINFO_HOWTO);
if (bi_howto != NULL)
boothowto = bi_howto->bi_howto;
cobalt_id = read_board_id();
if (cobalt_id >= COBALT_MODELS || cobalt_model[cobalt_id] == NULL)
cpu_setmodel("Cobalt unknown model (board ID %u)",
cobalt_id);
else
cpu_setmodel("%s", cobalt_model[cobalt_id]);
switch (cobalt_id) {
case COBALT_ID_QUBE2700:
case COBALT_ID_RAQ:
cpuspeed = 150; /* MHz */
break;
case COBALT_ID_QUBE2:
case COBALT_ID_RAQ2:
cpuspeed = 250; /* MHz */
break;
default:
/* assume the fastest, so that delay(9) works */
cpuspeed = 250;
break;
}
curcpu()->ci_cpu_freq = cpuspeed * 1000 * 1000;
curcpu()->ci_cycles_per_hz = (curcpu()->ci_cpu_freq + hz / 2) / hz;
curcpu()->ci_divisor_delay =
((curcpu()->ci_cpu_freq + (1000000 / 2)) / 1000000);
/* all models have Rm5200, which is CPU_MIPS_DOUBLE_COUNT */
curcpu()->ci_cycles_per_hz /= 2;
curcpu()->ci_divisor_delay /= 2;
physmem = btoc(memsize - MIPS_KSEG0_START);
consinit();
KASSERT(&lwp0 == curlwp);
if (bi_msg != NULL)
printf("%s: magic=%#x bip=%p\n", bi_msg, bim, bip);
uvm_setpagesize();
/*
* The boot command is passed in the top 512 bytes,
* so don't clobber that.
*/
mem_clusters[0].start = 0;
mem_clusters[0].size = ctob(physmem) - 512;
mem_cluster_cnt = 1;
memcpy(bootstring, (char *)(memsize - 512), 512);
memset((char *)(memsize - 512), 0, 512);
bootstring[511] = '\0';
decode_bootstring();
#if NKSYMS || defined(DDB) || defined(MODULAR)
/* init symbols if present */
if ((bi_syms != NULL) && (esym != NULL))
ksyms_addsyms_elf(esym - ssym, ssym, esym);
#endif
KASSERT(&lwp0 == curlwp);
#ifdef DDB
if (boothowto & RB_KDB)
Debugger();
#endif
#ifdef KGDB
if (boothowto & RB_KDB)
kgdb_connect(0);
#endif
/*
* Load the rest of the available pages into the VM system.
*/
first = round_page(MIPS_KSEG0_TO_PHYS(kernend));
last = mem_clusters[0].start + mem_clusters[0].size;
uvm_page_physload(atop(first), atop(last), atop(first), atop(last),
VM_FREELIST_DEFAULT);
/*
* Initialize error message buffer (at end of core).
*/
mips_init_msgbuf();
pmap_bootstrap();
/*
* Allocate space for proc0's USPACE.
*/
mips_init_lwp0_uarea();
}
void
mach_init(void)
{
void *kernend;
uint32_t memsize;
extern char edata[], end[]; /* XXX */
/* clear the BSS segment */
kernend = (void *)mips_round_page(end);
memset(edata, 0, (char *)kernend - edata);
/* setup early console */
atheros_set_platformsw();
/* set CPU model info for sysctl_hw */
snprintf(cpu_model, 64, "Atheros %s", atheros_get_cpuname());
/*
* Set up the exception vectors and CPU-specific function
* vectors early on. We need the wbflush() vector set up
* before comcnattach() is called (or at least before the
* first printf() after that is called).
* Sets up mips_cpu_flags that may be queried by other
* functions called during startup.
* Also clears the I+D caches.
*/
mips_vector_init(NULL, false);
/*
* Calibrate timers.
*/
cal_timer();
/*
* Set the VM page size.
*/
uvm_setpagesize();
/*
* Look at arguments passed to us and compute boothowto.
*/
boothowto = RB_AUTOBOOT;
#ifdef KADB
boothowto |= RB_KDB;
#endif
/*
* This would be a good place to parse a boot command line, if
* we got one from the bootloader. Right now we have no way to
* get one from e.g. vxworks.
*/
/*
* Determine the memory size.
*
* Note: Reserve the first page! That's where the trap
* vectors are located.
*/
memsize = atheros_get_memsize();
printf("Memory size: 0x%08x\n", memsize);
physmem = btoc(memsize);
mem_clusters[mem_cluster_cnt].start = PAGE_SIZE;
mem_clusters[mem_cluster_cnt].size =
memsize - mem_clusters[mem_cluster_cnt].start;
mem_cluster_cnt++;
/*
* Load the available pages into the VM system.
*/
mips_page_physload(MIPS_KSEG0_START, (vaddr_t)kernend,
mem_clusters, mem_cluster_cnt, NULL, 0);
/*
* Initialize message buffer (at end of core).
*/
mips_init_msgbuf();
/*
* Initialize the virtual memory system.
*/
pmap_bootstrap();
/*
* Allocate uarea page for lwp0 and set it.
*/
mips_init_lwp0_uarea();
/*
* Initialize busses.
*/
atheros_bus_init();
/*
* Turn off (ignore) the hardware watchdog. If we got this
* far, then we shouldn't need it anymore.
*/
atheros_wdog_reload(0);
/*
* Turn off watchpoint that may have been enabled by the
* PROM. VxWorks bootloader seems to leave one set.
*/
__asm volatile (
"mtc0 $0, $%0\n\t"
"nop\n\t"
"nop\n\t" :: "n"(MIPS_COP_0_WATCH_LO));
/*
* Initialize debuggers, and break into them, if appropriate.
*/
#ifdef DDB
if (boothowto & RB_KDB)
Debugger();
#endif
}
void
mach_init(void)
{
void *kernend;
uint32_t memsize;
extern char edata[], end[]; /* XXX */
/* clear the BSS segment */
kernend = (void *)mips_round_page(end);
memset(edata, 0, (char *)kernend - edata);
/* setup early console */
ingenic_putchar_init();
/* set CPU model info for sysctl_hw */
cpu_setmodel("Ingenic XBurst");
mips_vector_init(NULL, false);
cal_timer();
uvm_setpagesize();
/*
* Look at arguments passed to us and compute boothowto.
*/
boothowto = RB_AUTOBOOT;
#ifdef KADB
boothowto |= RB_KDB;
#endif
/*
* Determine the memory size.
*
* Note: Reserve the first page! That's where the trap
* vectors are located.
*/
memsize = 0x40000000;
printf("Memory size: 0x%08x\n", memsize);
physmem = btoc(memsize);
/*
* memory is at 0x20000000 with first 256MB mirrored to 0x00000000 so
* we can see them through KSEG*
* assume 1GB for now, the SoC can theoretically support up to 3GB
*/
mem_clusters[0].start = PAGE_SIZE;
mem_clusters[0].size = 0x10000000 - PAGE_SIZE;
mem_clusters[1].start = 0x30000000;
mem_clusters[1].size = 0x30000000;
mem_cluster_cnt = 2;
/*
* Load the available pages into the VM system.
*/
mips_page_physload(MIPS_KSEG0_START, (vaddr_t)kernend,
mem_clusters, mem_cluster_cnt, NULL, 0);
/*
* Initialize message buffer (at end of core).
*/
mips_init_msgbuf();
/*
* Initialize the virtual memory system.
*/
pmap_bootstrap();
/*
* Allocate uarea page for lwp0 and set it.
*/
mips_init_lwp0_uarea();
#ifdef MULTIPROCESSOR
mutex_init(&ingenic_ipi_lock, MUTEX_DEFAULT, IPL_HIGH);
mips_locoresw.lsw_send_ipi = ingenic_send_ipi;
mips_locoresw.lsw_cpu_init = ingenic_cpu_init;
#endif
apbus_init();
/*
* Initialize debuggers, and break into them, if appropriate.
*/
#ifdef DDB
if (boothowto & RB_KDB)
Debugger();
#endif
}
void
mach_init(void)
{
vaddr_t kernend;
psize_t memsize;
extern char kernel_text[];
extern char edata[], end[]; /* From Linker */
/* clear the BSS segment */
kernend = mips_round_page(end);
memset(edata, 0, kernend - (vaddr_t)edata);
#ifdef RALINK_CONSOLE_EARLY
/*
* set up early console
* cannot printf until sometime (?) in mips_vector_init
* meanwhile can use the ra_console_putc primitive if necessary
*/
ralink_console_early();
#endif
/* set CPU model info for sysctl_hw */
uint32_t tmp1, tmp2;
char id1[5], id2[5];
tmp1 = sysctl_read(RA_SYSCTL_ID0);
memcpy(id1, &tmp1, sizeof(tmp1));
tmp2 = sysctl_read(RA_SYSCTL_ID1);
memcpy(id2, &tmp2, sizeof(tmp2));
id2[4] = id1[4] = '\0';
if (id2[2] == ' ') {
id2[2] = '\0';
} else if (id2[3] == ' ') {
id2[3] = '\0';
} else {
id2[4] = '\0';
}
cpu_setmodel("%s%s", id1, id2);
/*
* Set up the exception vectors and CPU-specific function
* vectors early on. We need the wbflush() vector set up
* before comcnattach() is called (or at least before the
* first printf() after that is called).
* Sets up mips_cpu_flags that may be queried by other
* functions called during startup.
* Also clears the I+D caches.
*/
mips_vector_init(NULL, false);
/*
* Calibrate timers.
*/
cal_timer();
/*
* Set the VM page size.
*/
uvm_setpagesize();
/*
* Look at arguments passed to us and compute boothowto.
*/
boothowto = RB_AUTOBOOT;
#ifdef KADB
boothowto |= RB_KDB;
#endif
/*
* Determine the memory size.
*/
#if defined(MT7620)
memsize = 128 << 20;
#else
memsize = *(volatile uint32_t *)
MIPS_PHYS_TO_KSEG1(RA_SYSCTL_BASE + RA_SYSCTL_CFG0);
memsize = __SHIFTOUT(memsize, SYSCTL_CFG0_DRAM_SIZE);
if (__predict_false(memsize == 0)) {
memsize = 2 << 20;
} else {
memsize = 4 << (20 + memsize);
}
#endif
physmem = btoc(memsize);
mem_clusters[mem_cluster_cnt].start = 0;
mem_clusters[mem_cluster_cnt].size = memsize;
mem_cluster_cnt++;
/*
* Load the memory into the VM system
*/
mips_page_physload((vaddr_t)kernel_text, kernend,
mem_clusters, mem_cluster_cnt,
NULL, 0);
/*
* Initialize message buffer (at end of core).
*/
mips_init_msgbuf();
/*
* Initialize the virtual memory system.
*/
pmap_bootstrap();
/*
* Init mapping for u page(s) for proc0.
*/
mips_init_lwp0_uarea();
/*
* Initialize busses.
*/
ra_bus_init();
#ifdef DDB
if (boothowto & RB_KDB)
Debugger();
#endif
}
void
mach_init(int argc, char **argv, yamon_env_var *envp, u_long memsize)
{
bus_space_handle_t sh;
void *kernend;
const char *cp;
int freqok, howto, i;
const struct alchemy_board *board;
extern char edata[], end[]; /* XXX */
board = board_info();
KASSERT(board != NULL);
/* clear the BSS segment */
kernend = (void *)mips_round_page(end);
memset(edata, 0, (char *)kernend - edata);
/* set CPU model info for sysctl_hw */
strcpy(cpu_model, board->ab_name);
/* save the yamon environment pointer */
yamon_envp = envp;
/* Use YAMON callbacks for early console I/O */
cn_tab = &yamon_promcd;
/*
* Set up the exception vectors and CPU-specific function
* vectors early on. We need the wbflush() vector set up
* before comcnattach() is called (or at least before the
* first printf() after that is called).
* Sets up mips_cpu_flags that may be queried by other
* functions called during startup.
* Also clears the I+D caches.
*/
mips_vector_init(NULL, false);
/*
* Set the VM page size.
*/
uvm_setpagesize();
/*
* Use YAMON's CPU frequency if available.
*/
freqok = yamon_setcpufreq(1);
/*
* Initialize bus space tags.
*/
au_cpureg_bus_mem_init(&alchemy_cpuregt, &alchemy_cpuregt);
aubus_st = &alchemy_cpuregt;
/*
* Calibrate the timer if YAMON failed to tell us.
*/
if (!freqok) {
bus_space_map(aubus_st, PC_BASE, PC_SIZE, 0, &sh);
au_cal_timers(aubus_st, sh);
bus_space_unmap(aubus_st, sh, PC_SIZE);
}
/*
* Perform board-specific initialization.
*/
board->ab_init();
/*
* Bring up the console.
*/
#if NCOM > 0
#ifdef CONSPEED
if (aucomcnrate == 0)
aucomcnrate = CONSPEED;
#else /* !CONSPEED */
/*
* Learn default console speed. We use the YAMON environment,
* though we could probably also figure it out by checking the
* aucom registers directly.
*/
if ((aucomcnrate == 0) && ((cp = yamon_getenv("modetty0")) != NULL))
aucomcnrate = strtoul(cp, NULL, 0);
if (aucomcnrate == 0) {
printf("FATAL: `modetty0' YAMON variable not set. Set it\n");
printf(" to the speed of the console and try again.\n");
printf(" Or, build a kernel with the `CONSPEED' "
"option.\n");
panic("mach_init");
}
#endif /* CONSPEED */
/*
* Delay to allow firmware putchars to complete.
* FIFO depth * character time.
* character time = (1000000 / (defaultrate / 10))
*/
delay(160000000 / aucomcnrate);
if (com_aubus_cnattach(UART0_BASE, aucomcnrate) != 0)
panic("mach_init: unable to initialize serial console");
#else /* NCOM > 0 */
panic("mach_init: not configured to use serial console");
#endif /* NAUCOM > 0 */
/*
* Look at arguments passed to us and compute boothowto.
*/
boothowto = RB_AUTOBOOT;
#ifdef KADB
boothowto |= RB_KDB;
#endif
for (i = 1; i < argc; i++) {
for (cp = argv[i]; *cp; cp++) {
/* Ignore superfluous '-', if there is one */
if (*cp == '-')
continue;
howto = 0;
BOOT_FLAG(*cp, howto);
if (! howto)
printf("bootflag '%c' not recognised\n", *cp);
else
boothowto |= howto;
}
}
/*
* Determine the memory size. Use the `memsize' PMON
* variable. If that's not available, panic.
*
* Note: Reserve the first page! That's where the trap
* vectors are located.
*/
#if defined(MEMSIZE)
memsize = MEMSIZE;
#else
if (memsize == 0) {
if ((cp = yamon_getenv("memsize")) != NULL)
memsize = strtoul(cp, NULL, 0);
else {
printf("FATAL: `memsize' YAMON variable not set. Set it to\n");
printf(" the amount of memory (in MB) and try again.\n");
printf(" Or, build a kernel with the `MEMSIZE' "
"option.\n");
panic("mach_init");
}
}
#endif /* MEMSIZE */
printf("Memory size: 0x%08lx\n", memsize);
physmem = btoc(memsize);
mem_clusters[mem_cluster_cnt].start = PAGE_SIZE;
mem_clusters[mem_cluster_cnt].size =
memsize - mem_clusters[mem_cluster_cnt].start;
mem_cluster_cnt++;
/*
* Load the rest of the available pages into the VM system.
*/
mips_page_physload(MIPS_KSEG0_START, (vaddr_t)kernend,
mem_clusters, mem_cluster_cnt, NULL, 0);
/*
* Initialize message buffer (at end of core).
*/
mips_init_msgbuf();
/*
* Initialize the virtual memory system.
*/
pmap_bootstrap();
/*
* Allocate uarea page for lwp0 and set it.
*/
mips_init_lwp0_uarea();
/*
* Initialize debuggers, and break into them, if appropriate.
*/
#ifdef DDB
if (boothowto & RB_KDB)
Debugger();
#endif
}
void
mach_init(void)
{
void *kernend;
uint32_t memsize;
extern char edata[], end[]; /* XXX */
/* clear the BSS segment */
kernend = (void *)mips_round_page(end);
memset(edata, 0, (char *)kernend - edata);
/* setup early console */
ingenic_putchar_init();
/* set CPU model info for sysctl_hw */
cpu_setmodel("Ingenic XBurst");
mips_vector_init(NULL, false);
cal_timer();
uvm_setpagesize();
/*
* Look at arguments passed to us and compute boothowto.
*/
boothowto = RB_AUTOBOOT;
#ifdef KADB
boothowto |= RB_KDB;
#endif
/*
* Determine the memory size.
*
* Note: Reserve the first page! That's where the trap
* vectors are located.
*/
memsize = 0x40000000;
printf("Memory size: 0x%08x\n", memsize);
physmem = btoc(memsize);
/* XXX this is CI20 specific */
mem_clusters[0].start = PAGE_SIZE;
mem_clusters[0].size = 0x10000000 - PAGE_SIZE;
mem_clusters[1].start = 0x30000000;
mem_clusters[1].size = 0x30000000;
mem_cluster_cnt = 2;
/*
* Load the available pages into the VM system.
*/
mips_page_physload(MIPS_KSEG0_START, (vaddr_t)kernend,
mem_clusters, mem_cluster_cnt, NULL, 0);
/*
* Initialize message buffer (at end of core).
*/
mips_init_msgbuf();
/*
* Initialize the virtual memory system.
*/
pmap_bootstrap();
/*
* Allocate uarea page for lwp0 and set it.
*/
mips_init_lwp0_uarea();
apbus_init();
/*
* Initialize debuggers, and break into them, if appropriate.
*/
#ifdef DDB
if (boothowto & RB_KDB)
Debugger();
#endif
}