I am using SDK 1.6 and there seems to be a contradiction in the manual (i.e. Freescale SDK 1.6 Document Number: QORIQSDK RevB, Sept 2014) about the use of USDPAA.
I section 220.127.116.11.2.2 there is a paragraph saying that the tree property "fsl, usdpaa-portal" must be used in the device tree to indicate to the kernel that a given portal is to be used by USDPAA. However, later in the document in section 18.104.22.168.3 there is a paragraph saying that for sdk 1.2 and later versions the portals do not need to have the tree property "fsl, usdpaa-portal".
So what I want to ask is do I have to use "fsl, usdpaa-portal" and "cpu-handle" to reserve some portals for USDPAA and declare their affinity or this will be done automatically when invoking b/qman_global_init?
Moreover, I am using a T4240 which has 15 QMAN pool channels. All the applications that are in the usdpaa packet come with defines like NUM_POOL_CHANNELS 4. Why is this the case? There is any way to query the number of pool
channels from application?
PS: I also attach the manual to make it easy.
Any help is appreciated.