On 23/08/22 05:41, Andrew Davis wrote:
J7200 has an instance of SA2UL in the MCU domain.
Add DT node for the same.
The device is marked TI_SCI_PD_SHARED as parts of this IP are also
shared with the security co-processor and OP-TEE.
The RNG node is added but marked disabled as it is firewalled off for
exclusive use by OP-TEE. Any access to this device from Linux will
result in firewall errors. We add the node for completeness of the
hardware description.
Signed-off-by: Andrew Davis <afd@xxxxxx>
---
.../boot/dts/ti/k3-j7200-mcu-wakeup.dtsi | 20 +++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
index ff13bbeed30c..e5be78a58682 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
@@ -375,4 +375,24 @@ mcu_r5fss0_core1: r5f@41400000 {
ti,loczrama = <1>;
};
};
+
+ mcu_crypto: crypto@40900000 {
+ compatible = "ti,j721e-sa2ul";
+ reg = <0x00 0x40900000 0x00 0x1200>;
+ power-domains = <&k3_pds 265 TI_SCI_PD_SHARED>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x00 0x40900000 0x00 0x40900000 0x00 0x30000>;
+ dmas = <&mcu_udmap 0xf501>, <&mcu_udmap 0x7502>,
+ <&mcu_udmap 0x7503>;
+ dma-names = "tx", "rx1", "rx2";
+ dma-coherent;
+
+ rng: rng@40910000 {
+ compatible = "inside-secure,safexcel-eip76";
+ reg = <0x00 0x40910000 0x00 0x7d>;
+ interrupts = <GIC_SPI 945 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled"; /* Used by OP-TEE */
+ };
+ };
};
Reviewed-by: Jayesh Choudhary <j-choudhary@xxxxxx>
