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arm64: dts: ti: k3-am62: Add RNG node

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Add EIP76 Random Number Generator (RNG) node within crypto engine for
AM62 and AM62A SoCs. The RNG hardware is integrated in crypto
subsystem at address 0x40910000.

Mark the RNG node with status "reserved" as it is intended for use by
OP-TEE for secure random number generation. If required, this hardware
can also be used through Linux kernel by enabling this node.

Signed-off-by: Shiva Tripathi <s-tripathi1@ti.com>
Link: https://patch.msgid.link/20250926100229.923547-1-s-tripathi1@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Shiva Tripathi 2025-09-26 15:32:29 +05:30 committed by Vignesh Raghavendra
parent a00ee8014d
commit 67106d2171
2 changed files with 20 additions and 0 deletions
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10
arch/arm64/boot/dts/ti/k3-am62-main.dtsi
View File

@ -214,6 +214,16 @@ crypto: crypto@40900000 {
dmas = <&main_pktdma 0xf501 0>, <&main_pktdma 0x7506 0>,
<&main_pktdma 0x7507 0>;
dma-names = "tx", "rx1", "rx2";
#address-cells = <2>;
#size-cells = <2>;
ranges = <0x00 0x40900000 0x00 0x40900000 0x00 0x30000>;
rng: rng@40910000 {
compatible = "inside-secure,safexcel-eip76";
reg = <0x00 0x40910000 0x00 0x7d>;
interrupts = <GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>;
status = "reserved"; /* Reserved for OP-TEE */
};
};
secure_proxy_sa3: mailbox@43600000 {

10
arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
View File

@ -247,6 +247,16 @@ crypto: crypto@40900000 {
dmas = <&main_pktdma 0xf501 0>, <&main_pktdma 0x7506 0>,
<&main_pktdma 0x7507 0>;
dma-names = "tx", "rx1", "rx2";
#address-cells = <2>;
#size-cells = <2>;
ranges = <0x00 0x40900000 0x00 0x40900000 0x00 0x30000>;
rng: rng@40910000 {
compatible = "inside-secure,safexcel-eip76";
reg = <0x00 0x40910000 0x00 0x7d>;
interrupts = <GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>;
status = "reserved"; /* Reserved for OP-TEE */
};
};
secure_proxy_sa3: mailbox@43600000 {