[PATCH v2 2/3] arm64: dts: exynos: Add PDMA node for Exynos850
From: Sam Protsenko <semen.protsenko@linaro.org>
Date: 2024-01-25 01:39:01
Also in:
linux-clk, linux-devicetree, linux-samsung-soc, lkml
Subsystem:
arm/samsung s3c, s5p and exynos arm architectures, samsung exynos850 soc support, the rest · Maintainers:
Krzysztof Kozlowski, Peter Griffin, Sam Protsenko, Linus Torvalds
Enable PDMA node. It's needed for multiple peripheral modules, like SPI.
Use "arm,pl330-broken-no-flushp" quirk, as otherwise SPI transfers in
DMA mode often fail with error like this:
I/O Error: rx-1 tx-1 rx-f tx-f len-786 dma-1 res-(-5)
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
---
Changes in v2:
- Ordered PDMA node by unit address
arch/arm64/boot/dts/exynos/exynos850.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm64/boot/dts/exynos/exynos850.dtsi b/arch/arm64/boot/dts/exynos/exynos850.dtsi
index da3f4a791e68..618bc674896e 100644
--- a/arch/arm64/boot/dts/exynos/exynos850.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos850.dtsi@@ -184,6 +184,16 @@ timer@10040000 { clock-names = "fin_pll", "mct"; }; + pdma0: dma-controller@120c0000 { + compatible = "arm,pl330", "arm,primecell"; + reg = <0x120c0000 0x1000>; + interrupts = <GIC_SPI 479 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cmu_core CLK_GOUT_PDMA_CORE_ACLK>; + clock-names = "apb_pclk"; + arm,pl330-broken-no-flushp; + #dma-cells = <1>; + }; + gic: interrupt-controller@12a01000 { compatible = "arm,gic-400"; #interrupt-cells = <3>;
--
2.39.2
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