The pl330 device instances and associated platform data is required only
for non-device-tree builds. With device tree enabled, the data about the
platform is obtained from the device tree. For images that include both
dt and non-dt platforms, an addditional check is added to ensure that
static amba device registrations is applicable to only non-dt platforms.
Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Signed-off-by: Thomas Abraham <thomas.abraham@xxxxxxxxxx>
Acked-by: Grant Likely <grant.likely@xxxxxxxxxxxx>
---
arch/arm/mach-exynos4/Kconfig | 10 ++++++++++
arch/arm/mach-exynos4/Makefile | 3 ++-
arch/arm/mach-exynos4/dma.c | 4 ++++
3 files changed, 16 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig
index d4d401c..679ba48 100644
--- a/arch/arm/mach-exynos4/Kconfig
+++ b/arch/arm/mach-exynos4/Kconfig
@@ -21,6 +21,11 @@ config EXYNOS4_MCT
help
Use MCT (Multi Core Timer) as kernel timers
+config EXYNOS4_DEV_DMA
+ bool
+ help
+ Compile in amba device definitions for DMA controller
+
config EXYNOS4_DEV_AHCI
bool
help
@@ -129,6 +134,7 @@ config MACH_SMDKC210
select EXYNOS4_SETUP_FIMD0
select EXYNOS4_SETUP_I2C1
select EXYNOS4_SETUP_SDHCI
+ select EXYNOS4_DEV_DMA
help
Machine support for Samsung SMDKC210
@@ -153,6 +159,7 @@ config MACH_SMDKV310
select EXYNOS4_SETUP_I2C1
select EXYNOS4_SETUP_KEYPAD
select EXYNOS4_SETUP_SDHCI
+ select EXYNOS4_DEV_DMA
help
Machine support for Samsung SMDKV310
@@ -191,6 +198,7 @@ config MACH_UNIVERSAL_C210
select EXYNOS4_SETUP_I2C3
select EXYNOS4_SETUP_I2C5
select EXYNOS4_SETUP_SDHCI
+ select EXYNOS4_DEV_DMA
help
Machine support for Samsung Mobile Universal S5PC210 Reference
Board.
@@ -215,6 +223,7 @@ config MACH_NURI
select EXYNOS4_SETUP_USB_PHY
select SAMSUNG_DEV_PWM
select SAMSUNG_DEV_ADC
+ select EXYNOS4_DEV_DMA
help
Machine support for Samsung Mobile NURI Board.
@@ -222,6 +231,7 @@ config MACH_EXYNOS4_DT
bool "Samsung Exynos4 Machine using device tree"
select CPU_EXYNOS4210
select USE_OF
+ select ARM_AMBA
help
Machine support for Samsung Exynos4 machine with device tree enabled.
diff --git a/arch/arm/mach-exynos4/Makefile b/arch/arm/mach-exynos4/Makefile
index d2bf5bf..a2f33dc 100644
--- a/arch/arm/mach-exynos4/Makefile
+++ b/arch/arm/mach-exynos4/Makefile
@@ -13,7 +13,8 @@ obj- :=
# Core support for EXYNOS4 system
obj-$(CONFIG_CPU_EXYNOS4210) += cpu.o init.o clock.o irq-combiner.o
-obj-$(CONFIG_CPU_EXYNOS4210) += setup-i2c0.o irq-eint.o dma.o pmu.o
+obj-$(CONFIG_CPU_EXYNOS4210) += setup-i2c0.o irq-eint.o pmu.o
+obj-$(CONFIG_EXYNOS4_DEV_DMA) += dma.o
obj-$(CONFIG_PM) += pm.o sleep.o
obj-$(CONFIG_CPU_IDLE) += cpuidle.o
diff --git a/arch/arm/mach-exynos4/dma.c b/arch/arm/mach-exynos4/dma.c
index c3c0d17..921d31d 100644
--- a/arch/arm/mach-exynos4/dma.c
+++ b/arch/arm/mach-exynos4/dma.c
@@ -24,6 +24,7 @@
#include <linux/dma-mapping.h>
#include <linux/amba/bus.h>
#include <linux/amba/pl330.h>
+#include <linux/of.h>
#include <asm/irq.h>
#include <plat/devs.h>
@@ -138,6 +139,9 @@ struct amba_device exynos4_device_pdma1 = {
static int __init exynos4_dma_init(void)
{
+ if (of_have_populated_dt())
+ return 0;
+
dma_cap_set(DMA_SLAVE, exynos4_pdma0_pdata.cap_mask);
dma_cap_set(DMA_CYCLIC, exynos4_pdma0_pdata.cap_mask);
amba_device_register(&exynos4_device_pdma0, &iomem_resource);
--
1.6.6.rc2
--
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