From 716ca530e1c4515d8683c9d5be3d56b301758b66 Mon Sep 17 00:00:00 2001 From: James <> Date: Wed, 4 Nov 2015 11:49:21 +0000 Subject: trunk-47381 --- ...9-dt-overlay-to-enable-dma-for-spi-driver.patch | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 target/linux/brcm2708/patches-4.1/0159-dt-overlay-to-enable-dma-for-spi-driver.patch (limited to 'target/linux/brcm2708/patches-4.1/0159-dt-overlay-to-enable-dma-for-spi-driver.patch') diff --git a/target/linux/brcm2708/patches-4.1/0159-dt-overlay-to-enable-dma-for-spi-driver.patch b/target/linux/brcm2708/patches-4.1/0159-dt-overlay-to-enable-dma-for-spi-driver.patch new file mode 100644 index 0000000..25d4d43 --- /dev/null +++ b/target/linux/brcm2708/patches-4.1/0159-dt-overlay-to-enable-dma-for-spi-driver.patch @@ -0,0 +1,45 @@ +From ff9071764e459f0ae477ca1121cb3d225bbab3f8 Mon Sep 17 00:00:00 2001 +From: Martin Sperl +Date: Wed, 22 Jul 2015 08:34:41 +0000 +Subject: [PATCH 159/203] dt-overlay to enable dma for spi driver + +Signed-off-by: Martin Sperl +--- + arch/arm/boot/dts/overlays/Makefile | 1 + + arch/arm/boot/dts/overlays/spi-dma-overlay.dts | 20 ++++++++++++++++++++ + 2 files changed, 21 insertions(+) + create mode 100755 arch/arm/boot/dts/overlays/spi-dma-overlay.dts + +--- a/arch/arm/boot/dts/overlays/Makefile ++++ b/arch/arm/boot/dts/overlays/Makefile +@@ -45,6 +45,7 @@ dtb-$(RPI_DT_OVERLAYS) += rpi-sense-over + dtb-$(RPI_DT_OVERLAYS) += sdhost-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) += spi-bcm2708-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) += spi-bcm2835-overlay.dtb ++dtb-$(RPI_DT_OVERLAYS) += spi-dma-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) += tinylcd35-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) += uart1-overlay.dtb + dtb-$(RPI_DT_OVERLAYS) += vga666-overlay.dtb +--- /dev/null ++++ b/arch/arm/boot/dts/overlays/spi-dma-overlay.dts +@@ -0,0 +1,20 @@ ++/* ++ * Device tree overlay for spi-bcm2835 to allow dma ++ */ ++ ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709"; ++ ++ fragment@0 { ++ target = <&spi0>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ dmas = <&dma 6>, <&dma 7>; ++ dma-names = "tx", "rx"; ++ }; ++ }; ++ }; -- cgit v1.2.3