[PATCH 3/3] arc: vdk: Add support of UIO

[Alexey Brodkin]

ARC VDK for EVSS uses UIO for communication with Embedded Vision
Subsystem.

Signed-off-by: Alexey Brodkin <abrod...@synopsys.com>
---
 arch/arc/boot/dts/vdk_axs10x_mb.dtsi    | 8 ++++++++
 arch/arc/configs/vdk_hs38_smp_defconfig | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi 
b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
index 1953914b9f4f..f0df59b23e21 100644
--- a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
@@ -112,5 +112,13 @@
                        interrupts = <7>;
                        bus-width = <4>;
                };
+
+               /* Embedded Vision subsystem UIO mappings; only relevant for EV 
VDK */
+               uio_ev: uio@0xD0000000 {
+                       compatible = "generic-uio";
+                       reg = <0xD0000000 0x2000 0xD1000000 0x2000 0x90000000 
0x10000000 0xC0000000 0x10000000>;
+                       reg-names = "ev_gsa", "ev_ctrl", "ev_shared_mem", 
"ev_code_mem";
+                       interrupts = <23>;
+               };
        };
 };
diff --git a/arch/arc/configs/vdk_hs38_smp_defconfig 
b/arch/arc/configs/vdk_hs38_smp_defconfig
index e03413fbc784..1a9b19903c9a 100644
--- a/arch/arc/configs/vdk_hs38_smp_defconfig
+++ b/arch/arc/configs/vdk_hs38_smp_defconfig
@@ -81,6 +81,8 @@ CONFIG_MMC=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_DW=y
+CONFIG_UIO=y
+CONFIG_UIO_PDRV_GENIRQ=y
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_EXT3_FS=y
 CONFIG_MSDOS_FS=y
-- 
2.7.4