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x86: minnowboard: Add support for enabling MMU

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The required linker and gen_mmu.py support added for minnowboard.

Signed-off-by: Adithya Baglody <adithya.nagaraj.baglody@intel.com>
This commit is contained in:
Adithya Baglody 2018-04-19 14:45:54 +05:30 • committed by Andrew Boie
commit 3e3d1a1c8c
2 changed files with 28 additions and 0 deletions
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3
arch/x86/soc/atom/linker.ld
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@ -39,6 +39,9 @@ MEMORY
*/
IDT_LIST : ORIGIN = 2K, LENGTH = 2K
#ifdef CONFIG_X86_MMU
MMU_LIST : ORIGIN = 4k, LENGTH = 1K
#endif
}
#include <arch/x86/linker.ld>

25
arch/x86/soc/atom/soc.c
View file

@ -17,3 +17,28 @@
#include <uart.h>
#include <device.h>
#include <init.h>
#ifdef CONFIG_X86_MMU
/* loapic */
MMU_BOOT_REGION(CONFIG_LOAPIC_BASE_ADDRESS, 4*1024, MMU_ENTRY_WRITE);
/*ioapic */
MMU_BOOT_REGION(CONFIG_IOAPIC_BASE_ADDRESS, 1024*1024, MMU_ENTRY_WRITE);
/* peripherals */
MMU_BOOT_REGION(0xB0000000, 128*1024, MMU_ENTRY_WRITE);
/* SCSS system control subsystem */
MMU_BOOT_REGION(0xB0800000, 16*1024, MMU_ENTRY_WRITE);
/* DMA */
MMU_BOOT_REGION(0xB0700000, 4*1024, MMU_ENTRY_WRITE);
/* USB */
MMU_BOOT_REGION(0xB0500000, 256*1024, MMU_ENTRY_WRITE);
#ifdef CONFIG_HPET_TIMER
MMU_BOOT_REGION(CONFIG_HPET_TIMER_BASE_ADDRESS, KB(4), MMU_ENTRY_WRITE);
#endif /* CONFIG_HPET_TIMER */
#endif /* CONFIG_X86_MMU */