From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>
Cc: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org,
MAZEYRAT Ludovic <ludovic.mazeyrat@alstomgroup.com>
Subject: [PATCH] powerpc/8xx: Add DT node for using the SEC engine of the MPC885
Date: Thu, 18 Oct 2018 13:57:22 +0000 (UTC) [thread overview]
Message-ID: <b587c4952ab56b672383d3657c1bc9b6d31ad0da.1539870727.git.christophe.leroy@c-s.fr> (raw)
The MPC885 has SEC engine version 1.2 with the following details:
- Number of Crypto channels: 1
- Exec Units: DEU, MDEU and AESU
- Available descriptors: 00010, 00100, 00110, 01000, 11000, 11010
It is also supposed to have descriptor 00000, but it doesn't work
properly so we keep it out for the moment.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
arch/powerpc/boot/dts/mpc885ads.dts | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/boot/dts/mpc885ads.dts b/arch/powerpc/boot/dts/mpc885ads.dts
index 5b037f51741d..3aa300afbbca 100644
--- a/arch/powerpc/boot/dts/mpc885ads.dts
+++ b/arch/powerpc/boot/dts/mpc885ads.dts
@@ -72,7 +72,7 @@
#address-cells = <1>;
#size-cells = <1>;
device_type = "soc";
- ranges = <0x0 0xff000000 0x4000>;
+ ranges = <0x0 0xff000000 0x28000>;
bus-frequency = <0>;
// Temporary -- will go away once kernel uses ranges for get_immrbase().
@@ -224,6 +224,17 @@
#size-cells = <0>;
};
};
+
+ crypto@20000 {
+ compatible = "fsl,sec1.2", "fsl,sec1.0";
+ reg = <0x20000 0x8000>;
+ interrupts = <1 1>;
+ interrupt-parent = <&PIC>;
+ fsl,num-channels = <1>;
+ fsl,channel-fifo-len = <24>;
+ fsl,exec-units-mask = <0x4c>;
+ fsl,descriptor-types-mask = <0x05000154>;
+ };
};
chosen {
--
2.13.3
reply other threads:[~2018-10-18 13:57 UTC|newest]
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