From e3faf2b8826b8ac58cdaad7f801e59e389320f0e Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Fri, 16 Oct 2015 10:18:12 +0300 Subject: [PATCH] ARM: DTS: am437x: Use the new DT bindings for the eDMA3 Switch to use the ti,edma3-tpcc and ti,edma3-tptc binding for the eDMA3 and enable the DMA even crossbar with ti,am335x-edma-crossbar. With the new bindings boards can customize and tweak the DMA channel priority to match their needs. With the new binding the memcpy is safe to be used since with the old binding it was not possible for a driver to know which channel is allowed to be used as non HW triggered channel. Signed-off-by: Peter Ujfalusi Signed-off-by: Vinod Koul --- arch/arm/boot/dts/am4372.dtsi | 82 ++++++++++++++++++++++------- arch/arm/boot/dts/am437x-gp-evm.dts | 9 +--- 2 files changed, 64 insertions(+), 27 deletions(-) diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi index 0447c04a40cc..461548ed69fd 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -183,14 +183,56 @@ }; edma: edma@49000000 { - compatible = "ti,edma3"; - ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2"; - reg = <0x49000000 0x10000>, - <0x44e10f90 0x10>; + compatible = "ti,edma3-tpcc"; + ti,hwmods = "tpcc"; + reg = <0x49000000 0x10000>; + reg-names = "edma3_cc"; interrupts = , - , - ; - #dma-cells = <1>; + , + ; + interrupt-names = "edma3_ccint", "emda3_mperr", + "edma3_ccerrint"; + dma-requests = <64>; + #dma-cells = <2>; + + ti,tptcs = <&edma_tptc0 7>, <&edma_tptc1 5>, + <&edma_tptc2 0>; + + ti,edma-memcpy-channels = /bits/ 16 <32 33>; + }; + + edma_tptc0: tptc@49800000 { + compatible = "ti,edma3-tptc"; + ti,hwmods = "tptc0"; + reg = <0x49800000 0x100000>; + interrupts = ; + interrupt-names = "edma3_tcerrint"; + }; + + edma_tptc1: tptc@49900000 { + compatible = "ti,edma3-tptc"; + ti,hwmods = "tptc1"; + reg = <0x49900000 0x100000>; + interrupts = ; + interrupt-names = "edma3_tcerrint"; + }; + + edma_tptc2: tptc@49a00000 { + compatible = "ti,edma3-tptc"; + ti,hwmods = "tptc2"; + reg = <0x49a00000 0x100000>; + interrupts = ; + interrupt-names = "edma3_tcerrint"; + }; + + edma_xbar: dma-router@44e10f90 { + compatible = "ti,am335x-edma-crossbar"; + reg = <0x44e10f90 0x40>; + + #dma-cells = <3>; + dma-requests = <64>; + + dma-masters = <&edma>; }; uart0: serial@44e09000 { @@ -495,8 +537,8 @@ ti,hwmods = "mmc1"; ti,dual-volt; ti,needs-special-reset; - dmas = <&edma 24 - &edma 25>; + dmas = <&edma 24 0>, + <&edma 25 0>; dma-names = "tx", "rx"; interrupts = ; status = "disabled"; @@ -507,8 +549,8 @@ reg = <0x481d8000 0x1000>; ti,hwmods = "mmc2"; ti,needs-special-reset; - dmas = <&edma 2 - &edma 3>; + dmas = <&edma 2 0>, + <&edma 3 0>; dma-names = "tx", "rx"; interrupts = ; status = "disabled"; @@ -775,7 +817,7 @@ compatible = "ti,omap5-sham"; ti,hwmods = "sham"; reg = <0x53100000 0x300>; - dmas = <&edma 36>; + dmas = <&edma 36 0>; dma-names = "rx"; interrupts = ; }; @@ -785,8 +827,8 @@ ti,hwmods = "aes"; reg = <0x53501000 0xa0>; interrupts = ; - dmas = <&edma 6 - &edma 5>; + dmas = <&edma 6 0>, + <&edma 5 0>; dma-names = "tx", "rx"; }; @@ -795,8 +837,8 @@ ti,hwmods = "des"; reg = <0x53701000 0xa0>; interrupts = ; - dmas = <&edma 34 - &edma 33>; + dmas = <&edma 34 0>, + <&edma 33 0>; dma-names = "tx", "rx"; }; @@ -809,8 +851,8 @@ interrupts = <80>, <81>; interrupt-names = "tx", "rx"; status = "disabled"; - dmas = <&edma 8>, - <&edma 9>; + dmas = <&edma 8 2>, + <&edma 9 2>; dma-names = "tx", "rx"; }; @@ -823,8 +865,8 @@ interrupts = <82>, <83>; interrupt-names = "tx", "rx"; status = "disabled"; - dmas = <&edma 10>, - <&edma 11>; + dmas = <&edma 10 2>, + <&edma 11 2>; dma-names = "tx", "rx"; }; diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts index 22038f21f228..28e3b252c08c 100644 --- a/arch/arm/boot/dts/am437x-gp-evm.dts +++ b/arch/arm/boot/dts/am437x-gp-evm.dts @@ -711,8 +711,8 @@ status = "okay"; /* these are on the crossbar and are outlined in the xbar-event-map element */ - dmas = <&edma 30 - &edma 31>; + dmas = <&edma_xbar 30 0 1>, + <&edma_xbar 31 0 2>; dma-names = "tx", "rx"; vmmc-supply = <&vmmcwl_fixed>; bus-width = <4>; @@ -733,11 +733,6 @@ }; }; -&edma { - ti,edma-xbar-event-map = /bits/ 16 <1 30 - 2 31>; -}; - &uart3 { status = "okay"; pinctrl-names = "default"; -- 2.20.1