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Reserve the first 4K of phys ram for safety from errant drivers/hardware.

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Signed-off-by: Ken Sumrall <ksumrall@android.com>
This commit is contained in:
Ken Sumrall
2010-09-28 20:40:59 -07:00
committed by Colin Cross
parent e4626c2429
commit 178d2c3f85
1 changed files with 5 additions and 0 deletions
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5
arch/arm/mach-tegra/board-stingray.c
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@@ -30,6 +30,7 @@
#include <linux/reboot.h>
#include <linux/i2c-tegra.h>
#include <linux/spi/cpcap.h>
#include <linux/bootmem.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -1044,6 +1045,10 @@ static void __init tegra_stingray_init(void)
void __init stingray_map_io(void)
{
if (reserve_bootmem(0x0, 4096, BOOTMEM_EXCLUSIVE) != 0) {
printk(KERN_WARNING "Cannot reserve first 4K of memory for safety\n");
}
tegra_map_common_io();
stingray_fb_alloc();
}