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MIPS qemu flash support.

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* grub-core/boot/mips/startup_raw.S [GRUB_MACHINE_MIPS_QEMU_MIPS]: Check
	magic.
	* grub-core/kern/mips/qemu_mips/init.c (probe_mem): New function.
	(grub_machine_init): Probe memory if its size isn't known.
	* util/grub-mkimage.c (image_targets): Add flash targets.
	(generate_image): Handle flash targets.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-07-05 21:42:36 +02:00
parent d734599439
commit 748ccabea1
4 changed files with 121 additions and 3 deletions
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28
grub-core/kern/mips/qemu_mips/init.c
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@ -23,11 +23,36 @@ extern void grub_terminfo_init (void);
extern void grub_keylayouts_init (void);
extern void grub_boot_init (void);
static inline int
probe_mem (grub_addr_t addr)
{
volatile grub_uint8_t *ptr = (grub_uint8_t *) (0xa0000000 | addr);
grub_uint8_t c = *ptr;
*ptr = 0xAA;
if (*ptr != 0xAA)
return 0;
*ptr = 0x55;
if (*ptr != 0x55)
return 0;
*ptr = c;
return 1;
}
void
grub_machine_init (void)
{
grub_addr_t modend;
if (grub_arch_memsize == 0)
{
int i;
for (i = 27; i >= 0; i--)
if (probe_mem (grub_arch_memsize | (1 << i)))
grub_arch_memsize |= (1 << i);
grub_arch_memsize++;
}
/* FIXME: measure this. */
grub_arch_cpuclock = 64000000;
@ -40,7 +65,6 @@ grub_machine_init (void)
grub_video_init ();
grub_bitmap_init ();
grub_font_init ();
grub_gfxterm_init ();
grub_keylayouts_init ();
grub_at_keyboard_init ();
@ -49,6 +73,8 @@ grub_machine_init (void)
grub_serial_init ();
grub_boot_init ();
grub_gfxterm_init ();
}
void