From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: vinod.koul@intel.com, Tony Lindgren <tony@atomide.com>,
Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: grant.likely@linaro.org, dmaengine@vger.kernel.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
robh+dt@kernel.org, nm@ti.com
Subject: [PATCH 6/6] ARM: DTS: dra7x: Integrate sDMA crossbar
Date: Tue, 24 Feb 2015 16:21:23 +0200 [thread overview]
Message-ID: <1424787683-19151-7-git-send-email-peter.ujfalusi@ti.com> (raw)
In-Reply-To: <1424787683-19151-1-git-send-email-peter.ujfalusi@ti.com>
The sDMA requests are routed through the DMA crossbar and without the
crossbar only peripherals using DMA request 0-127 can be used.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
arch/arm/boot/dts/dra7.dtsi | 57 ++++++++++++++++++++++++++-------------------
1 file changed, 33 insertions(+), 24 deletions(-)
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index aefa4192533a..bbda4261caf4 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -253,6 +253,15 @@
dma-requests = <127>;
};
+ sdma_xbar: dma-router@4a002b78 {
+ compatible = "ti,dra7-dma-crossbar";
+ reg = <0x4a002b78 0xfc>;
+ #dma-cells = <1>;
+ dma-requests = <205>;
+ ti,dma-safe-map = <0>;
+ dma-device = <&sdma>;
+ };
+
gpio1: gpio@4ae10000 {
compatible = "ti,omap4-gpio";
reg = <0x4ae10000 0x200>;
@@ -348,7 +357,7 @@
ti,hwmods = "uart1";
clock-frequency = <48000000>;
status = "disabled";
- dmas = <&sdma 49>, <&sdma 50>;
+ dmas = <&sdma_xbar 49>, <&sdma_xbar 50>;
dma-names = "tx", "rx";
};
@@ -359,7 +368,7 @@
ti,hwmods = "uart2";
clock-frequency = <48000000>;
status = "disabled";
- dmas = <&sdma 51>, <&sdma 52>;
+ dmas = <&sdma_xbar 51>, <&sdma_xbar 52>;
dma-names = "tx", "rx";
};
@@ -370,7 +379,7 @@
ti,hwmods = "uart3";
clock-frequency = <48000000>;
status = "disabled";
- dmas = <&sdma 53>, <&sdma 54>;
+ dmas = <&sdma_xbar 53>, <&sdma_xbar 54>;
dma-names = "tx", "rx";
};
@@ -381,7 +390,7 @@
ti,hwmods = "uart4";
clock-frequency = <48000000>;
status = "disabled";
- dmas = <&sdma 55>, <&sdma 56>;
+ dmas = <&sdma_xbar 55>, <&sdma_xbar 56>;
dma-names = "tx", "rx";
};
@@ -392,7 +401,7 @@
ti,hwmods = "uart5";
clock-frequency = <48000000>;
status = "disabled";
- dmas = <&sdma 63>, <&sdma 64>;
+ dmas = <&sdma_xbar 63>, <&sdma_xbar 64>;
dma-names = "tx", "rx";
};
@@ -403,7 +412,7 @@
ti,hwmods = "uart6";
clock-frequency = <48000000>;
status = "disabled";
- dmas = <&sdma 79>, <&sdma 80>;
+ dmas = <&sdma_xbar 79>, <&sdma_xbar 80>;
dma-names = "tx", "rx";
};
@@ -819,7 +828,7 @@
ti,hwmods = "mmc1";
ti,dual-volt;
ti,needs-special-reset;
- dmas = <&sdma 61>, <&sdma 62>;
+ dmas = <&sdma_xbar 61>, <&sdma_xbar 62>;
dma-names = "tx", "rx";
status = "disabled";
pbias-supply = <&pbias_mmc_reg>;
@@ -831,7 +840,7 @@
interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "mmc2";
ti,needs-special-reset;
- dmas = <&sdma 47>, <&sdma 48>;
+ dmas = <&sdma_xbar 47>, <&sdma_xbar 48>;
dma-names = "tx", "rx";
status = "disabled";
};
@@ -842,7 +851,7 @@
interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "mmc3";
ti,needs-special-reset;
- dmas = <&sdma 77>, <&sdma 78>;
+ dmas = <&sdma_xbar 77>, <&sdma_xbar 78>;
dma-names = "tx", "rx";
status = "disabled";
};
@@ -853,7 +862,7 @@
interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
ti,hwmods = "mmc4";
ti,needs-special-reset;
- dmas = <&sdma 57>, <&sdma 58>;
+ dmas = <&sdma_xbar 57>, <&sdma_xbar 58>;
dma-names = "tx", "rx";
status = "disabled";
};
@@ -998,14 +1007,14 @@
#size-cells = <0>;
ti,hwmods = "mcspi1";
ti,spi-num-cs = <4>;
- dmas = <&sdma 35>,
- <&sdma 36>,
- <&sdma 37>,
- <&sdma 38>,
- <&sdma 39>,
- <&sdma 40>,
- <&sdma 41>,
- <&sdma 42>;
+ dmas = <&sdma_xbar 35>,
+ <&sdma_xbar 36>,
+ <&sdma_xbar 37>,
+ <&sdma_xbar 38>,
+ <&sdma_xbar 39>,
+ <&sdma_xbar 40>,
+ <&sdma_xbar 41>,
+ <&sdma_xbar 42>;
dma-names = "tx0", "rx0", "tx1", "rx1",
"tx2", "rx2", "tx3", "rx3";
status = "disabled";
@@ -1019,10 +1028,10 @@
#size-cells = <0>;
ti,hwmods = "mcspi2";
ti,spi-num-cs = <2>;
- dmas = <&sdma 43>,
- <&sdma 44>,
- <&sdma 45>,
- <&sdma 46>;
+ dmas = <&sdma_xbar 43>,
+ <&sdma_xbar 44>,
+ <&sdma_xbar 45>,
+ <&sdma_xbar 46>;
dma-names = "tx0", "rx0", "tx1", "rx1";
status = "disabled";
};
@@ -1035,7 +1044,7 @@
#size-cells = <0>;
ti,hwmods = "mcspi3";
ti,spi-num-cs = <2>;
- dmas = <&sdma 15>, <&sdma 16>;
+ dmas = <&sdma_xbar 15>, <&sdma_xbar 16>;
dma-names = "tx0", "rx0";
status = "disabled";
};
@@ -1048,7 +1057,7 @@
#size-cells = <0>;
ti,hwmods = "mcspi4";
ti,spi-num-cs = <1>;
- dmas = <&sdma 70>, <&sdma 71>;
+ dmas = <&sdma_xbar 70>, <&sdma_xbar 71>;
dma-names = "tx0", "rx0";
status = "disabled";
};
--
2.3.0
next prev parent reply other threads:[~2015-02-24 14:21 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-24 14:21 [PATCH 0/6] dmaengine/dra7x: DMA router (crossbar support) Peter Ujfalusi
2015-02-24 14:21 ` [PATCH 1/6] dmaengine: of_dma: Support for DMA routers Peter Ujfalusi
2015-02-24 14:21 ` [PATCH 2/6] dmaengine: Add driver for TI DMA crossbar on DRA7x Peter Ujfalusi
2015-02-28 16:00 ` Paul Bolle
2015-03-02 7:57 ` Peter Ujfalusi
2015-02-24 14:21 ` [PATCH 3/6] dmaengine: omap-dma: Use defines for dma channels and request count Peter Ujfalusi
2015-02-24 14:21 ` [PATCH 4/6] dmaengine: omap-dma: Take DMA request number from DT if it is available Peter Ujfalusi
2015-02-24 14:25 ` Russell King - ARM Linux
2015-02-24 14:28 ` Peter Ujfalusi
2015-02-24 14:21 ` [PATCH 5/6] dmaengine: omap-dma: Remove mapping between virtual channels and requests Peter Ujfalusi
[not found] ` <1424787683-19151-6-git-send-email-peter.ujfalusi-l0cyMroinI0@public.gmane.org>
2015-02-24 14:28 ` Russell King - ARM Linux
2015-02-24 17:01 ` Peter Ujfalusi
2015-02-24 14:21 ` Peter Ujfalusi [this message]
2015-03-09 13:14 ` [PATCH 0/6] dmaengine/dra7x: DMA router (crossbar support) Peter Ujfalusi
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