| Message ID | 20220823001136.10944-4-afd@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2,1/4] arm64: dts: ti: k3-am65-main: Disable RNG node | expand |
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@ti.com> > --- > .../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@ti.com>
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 */ + }; + }; };
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@ti.com> --- .../boot/dts/ti/k3-j7200-mcu-wakeup.dtsi | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+)