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authorWill Deacon <will.deacon@arm.com>2014-08-27 18:51:16 +0200
committerWill Deacon <will.deacon@arm.com>2014-12-01 17:50:50 +0100
commitaf4dda732ea044517f8beed4a38c852ea97e7690 (patch)
tree730f58541092c34b207a1b7bd0e4f036ee0f7ef7 /arch/arm/kernel
parentdma-mapping: detect and configure IOMMU in of_dma_configure (diff)
downloadlinux-af4dda732ea044517f8beed4a38c852ea97e7690.tar.xz
linux-af4dda732ea044517f8beed4a38c852ea97e7690.zip
arm: call iommu_init before of_platform_populate
We need to ensure that the IOMMUs in the system have a chance to perform some basic initialisation before we start adding masters to them. This patch adds a call to of_iommu_init before of_platform_populate. Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/setup.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index c03106378b49..1cfc94aa7fa2 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -18,6 +18,7 @@
#include <linux/bootmem.h>
#include <linux/seq_file.h>
#include <linux/screen_info.h>
+#include <linux/of_iommu.h>
#include <linux/of_platform.h>
#include <linux/init.h>
#include <linux/kexec.h>
@@ -806,6 +807,7 @@ static int __init customize_machine(void)
* machine from the device tree, if no callback is provided,
* otherwise we would always need an init_machine callback.
*/
+ of_iommu_init();
if (machine_desc->init_machine)
machine_desc->init_machine();
#ifdef CONFIG_OF