linux-kernel - [PATCH v4] ARM: dts: at91: sama7g5: Add crypto nodes

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Message-ID: <20220208105646.226623-1-tudor.ambarus@microchip.com>
Date:   Tue, 8 Feb 2022 12:56:46 +0200
From:   Tudor Ambarus <tudor.ambarus@...rochip.com>
To:     <nicolas.ferre@...rochip.com>, <claudiu.beznea@...rochip.com>,
        <alexandre.belloni@...tlin.com>
CC:     <robh+dt@...nel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <kavyasree.kotagiri@...rochip.com>,
        Tudor Ambarus <tudor.ambarus@...rochip.com>
Subject: [PATCH v4] ARM: dts: at91: sama7g5: Add crypto nodes

Describe and enable the AES, SHA and TDES crypto IPs. Tested with the
extra run-time self tests of the registered crypto algorithms.

Signed-off-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
---
v4: use the generic "crypto" node name for all the crypto nodes,
as recommended by the DT specification. Add Claudiu's R-b tag.

v3: remove explicit status = "okay", as it's already the default case
when not specified at all.

v2:
- add label to the tdes node
- update commit description and specify testing method
- put clocks and clock-names properties before dmas and dma-names
  because the clocks are mandatory, while DMA is optional for TDES and SHA

 arch/arm/boot/dts/sama7g5.dtsi | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm/boot/dts/sama7g5.dtsi b/arch/arm/boot/dts/sama7g5.dtsi
index 7972cb8c2562..2453a6901313 100644
--- a/arch/arm/boot/dts/sama7g5.dtsi
+++ b/arch/arm/boot/dts/sama7g5.dtsi
@@ -393,6 +393,27 @@ pit64b1: timer@...04000 {
 			clock-names = "pclk", "gclk";
 		};
 
+		aes: crypto@...10000 {
+			compatible = "atmel,at91sam9g46-aes";
+			reg = <0xe1810000 0x100>;
+			interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 27>;
+			clock-names = "aes_clk";
+			dmas = <&dma0 AT91_XDMAC_DT_PERID(1)>,
+			       <&dma0 AT91_XDMAC_DT_PERID(2)>;
+			dma-names = "tx", "rx";
+		};
+
+		sha: crypto@...14000 {
+			compatible = "atmel,at91sam9g46-sha";
+			reg = <0xe1814000 0x100>;
+			interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 83>;
+			clock-names = "sha_clk";
+			dmas = <&dma0 AT91_XDMAC_DT_PERID(48)>;
+			dma-names = "tx";
+		};
+
 		flx0: flexcom@...18000 {
 			compatible = "atmel,sama5d2-flexcom";
 			reg = <0xe1818000 0x200>;
@@ -475,6 +496,17 @@ trng: rng@...10000 {
 			status = "disabled";
 		};
 
+		tdes: crypto@...14000 {
+			compatible = "atmel,at91sam9g46-tdes";
+			reg = <0xe2014000 0x100>;
+			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 96>;
+			clock-names = "tdes_clk";
+			dmas = <&dma0 AT91_XDMAC_DT_PERID(54)>,
+			       <&dma0 AT91_XDMAC_DT_PERID(53)>;
+			dma-names = "tx", "rx";
+		};
+
 		flx4: flexcom@...18000 {
 			compatible = "atmel,sama5d2-flexcom";
 			reg = <0xe2018000 0x200>;
-- 
2.25.1