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[ARM] 3859/1: Fix devicemaps_init() XIP_KERNEL odd 1MiB XIP_PHYS_ADDR translation error

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The ARM XIP_KERNEL map created in devicemaps_init() is wrong.
The map.pfn is rounded down to an even 1MiB section boundary
which results in va/pa translations errors when XIP_PHYS_ADDR
starts on an odd 1MiB boundary and this causes the kernel to
hang.  This patch fixes ARM XIP_KERNEL translation errors for
the odd 1MiB XIP_PHYS_ADDR boundary case.

Signed-off-by: George G. Davis <gdavis@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
George G. Davis
2006-09-22 18:36:38 +01:00
committed by Russell King
parent 4b053e7a32
commit 4052ebb7a2
2 changed files with 9 additions and 2 deletions
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7
include/asm-arm/pgtable.h
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@@ -135,6 +135,13 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
#define FIRST_USER_PGD_NR 1
#define USER_PTRS_PER_PGD ((TASK_SIZE/PGDIR_SIZE) - FIRST_USER_PGD_NR)
/*
* section address mask and size definitions.
*/
#define SECTION_SHIFT 20
#define SECTION_SIZE (1UL << SECTION_SHIFT)
#define SECTION_MASK (~(SECTION_SIZE-1))
/*
* ARMv6 supersection address mask and size definitions.
*/