RE: [linuxppc-release] [PATCH][v10] powerpc/mpc85xx:Add initial device tree support of T104x
From: Shengzhou.Liu@freescale.com <hidden>
Date: 2014-06-06 05:04:27
-----Original Message-----
From: linuxppc-release-bounces@linux.freescale.net [mailto:linuxppc-
release-bounces@linux.freescale.net] On Behalf Of Prabhakar Kushwaha
Sent: Monday, April 21, 2014 7:34 PM
To: linuxppc-dev@lists.ozlabs.org
Cc: Wood Scott-B07421; Jain Priyanka-B32167; Aggrwal Poonam-B10812;
Kushwaha Prabhakar-B32579
Subject: [linuxppc-release] [PATCH][v10] powerpc/mpc85xx:Add initial
device tree support of T104x
=20
The QorIQ T1040/T1042 processor support four integrated 64-bit e5500 PA
processor cores with high-performance data path acceleration architecture
and network peripheral interfaces required for networking &
telecommunications.
=20
+
+ iommu@20000 {
+ compatible =3D "fsl,pamu-v1.0", "fsl,pamu";
+ reg =3D <0x20000 0x1000>;
+ ranges =3D <0 0x20000 0x1000>;
+ #address-cells =3D <1>;
+ #size-cells =3D <1>;
+ interrupts =3D <
+ 24 2 0 0
+ 16 2 1 30>;
+ pamu0: pamu@0 {
+ reg =3D <0 0x1000>;
+ fsl,primary-cache-geometry =3D <128 1>;
+ fsl,secondary-cache-geometry =3D <16 2>;
+ };
[Shengzhou] T1040 RM says:
Hardware coherent PAMU Look-aside caches to improve performance
* A 32-entry, direct-mapped primary PAACT cache
* A 128-entry, 2-way, set-associative secondary PAACT cache
It appears it should be:=20
fsl,primary-cache-geometry =3D <32 1>;
fsl,secondary-cache-geometry =3D <128 2>;
is there any reason that it was "<128 1>, <16 2>" ?