[ARM] 3269/1: Add ARMv6 MT_NONSHARED_DEVICE mem_types[] index
Patch from George G. Davis
This Freescale Semiconductor, Inc. contributed patch adds mem_types[]
support for ARMv6 non-shared device memory region attributes. This
implementation provides support for only first level section mapped
non-shared devices. Second level non-shared device mappings are not
yet supported.
Signed-off-by: George G. Davis <gdavis@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mm/mm-armv.c b/arch/arm/mm/mm-armv.c
index d0245a3..ef8d30a 100644
--- a/arch/arm/mm/mm-armv.c
+++ b/arch/arm/mm/mm-armv.c
@@ -343,6 +343,12 @@
PMD_SECT_AP_WRITE | PMD_SECT_BUFFERABLE |
PMD_SECT_TEX(1),
.domain = DOMAIN_IO,
+ },
+ [MT_NONSHARED_DEVICE] = {
+ .prot_l1 = PMD_TYPE_TABLE,
+ .prot_sect = PMD_TYPE_SECT | PMD_SECT_NONSHARED_DEV |
+ PMD_SECT_AP_WRITE,
+ .domain = DOMAIN_IO,
}
};
diff --git a/include/asm-arm/mach/map.h b/include/asm-arm/mach/map.h
index 3351b77..e8ea67c 100644
--- a/include/asm-arm/mach/map.h
+++ b/include/asm-arm/mach/map.h
@@ -26,6 +26,7 @@
#define MT_MEMORY 5
#define MT_ROM 6
#define MT_IXP2000_DEVICE 7
+#define MT_NONSHARED_DEVICE 8
extern void create_memmap_holes(struct meminfo *);
extern void memtable_init(struct meminfo *);
diff --git a/include/asm-arm/pgtable.h b/include/asm-arm/pgtable.h
index 5a0d19b..70e00d0 100644
--- a/include/asm-arm/pgtable.h
+++ b/include/asm-arm/pgtable.h
@@ -168,6 +168,7 @@
#define PMD_SECT_WB (PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
#define PMD_SECT_MINICACHE (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE)
#define PMD_SECT_WBWA (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
+#define PMD_SECT_NONSHARED_DEV (PMD_SECT_TEX(2))
/*
* - coarse table (not used)