arch/mips/fw/arc/init.c

Source file repositories/reference/linux-study-clean/arch/mips/fw/arc/init.c

File Facts

System
Linux kernel
Corpus path
arch/mips/fw/arc/init.c
Extension
.c
Size
1163 bytes
Lines
52
Domain
Architecture Layer
Bucket
arch/mips
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#include <linux/init.h>
#include <linux/kernel.h>

#include <asm/bootinfo.h>
#include <asm/sgialib.h>
#include <asm/smp-ops.h>

#undef DEBUG_PROM_INIT

/* Master romvec interface. */
struct linux_romvec *romvec;

#if defined(CONFIG_64BIT) && defined(CONFIG_FW_ARC32)
/* stack for calling 32bit ARC prom */
u64 o32_stk[4096];
#endif

void __init prom_init(void)
{
	PSYSTEM_PARAMETER_BLOCK pb = PROMBLOCK;

	romvec = ROMVECTOR;

	if (pb->magic != 0x53435241) {
		printk(KERN_CRIT "Aieee, bad prom vector magic %08lx\n",
		       (unsigned long) pb->magic);
		while(1)
			;
	}

	prom_init_cmdline(fw_arg0, (LONG *)fw_arg1);
	prom_identify_arch();
	printk(KERN_INFO "PROMLIB: ARC firmware Version %d Revision %d\n",
	       pb->ver, pb->rev);
	prom_meminit();

#ifdef DEBUG_PROM_INIT
	pr_info("Press a key to reboot\n");
	ArcRead(0, &c, 1, &cnt);
	ArcEnterInteractiveMode();
#endif
}

Annotation

Implementation Notes