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authorSantosh Shilimkar <santosh.shilimkar@ti.com>2013-11-23 16:58:03 -0500
committerSantosh Shilimkar <santosh.shilimkar@ti.com>2013-12-16 16:03:36 -0500
commitdf595a9d70fc3d1f4435b4a643bfaab9913c0ebd (patch)
tree8f9570876b45f49553935f95dcb38a439b9f1094 /arch/arm/mach-keystone/keystone.c
parent89b3feefa2e0ca2ba09e637a8a23838e9561c3a2 (diff)
downloadlinux-linaro-stable-df595a9d70fc3d1f4435b4a643bfaab9913c0ebd.tar.gz
ARM: keystone: enable DMA zone for LPAE
Keystone II peripheral devices support 32-bit DMA and hence can access only first 2GB of the memory address space. So set the platform dma_zone_size to handle that case. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Diffstat (limited to 'arch/arm/mach-keystone/keystone.c')
-rw-r--r--arch/arm/mach-keystone/keystone.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c
index b661c5c2870a..2fe4dd04996c 100644
--- a/arch/arm/mach-keystone/keystone.c
+++ b/arch/arm/mach-keystone/keystone.c
@@ -68,6 +68,9 @@ void keystone_restart(enum reboot_mode mode, const char *cmd)
}
DT_MACHINE_START(KEYSTONE, "Keystone")
+#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
+ .dma_zone_size = SZ_2G,
+#endif
.smp = smp_ops(keystone_smp_ops),
.init_machine = keystone_init,
.dt_compat = keystone_match,