ACP issue with Arria 10 device in linux.

[Altera_Forum]

Hi,  

 Because HPS in Arria-10 is different to old devices, So have to open a new thread.  

• Quartus: 15.1 
• Device: 10AS066H3F34I2SGES 
• Linux: https://github.com/altera-opensource/linux-socfpga.git 

  commit 60fd5d498abedaee238effc63af806453bd87836  Author: Matthew Gerlach <mgerlach@opensource.altera.com>  Date: Tue Jul 14 18:14:59 2015 -0700   

• acp test code including rtl and linux device driver, also the test logs, can download at: https://github.com/linuxbest/acpt 

  current status:  

1. The rtl code and linux device driver work fine without enable dma-coherent. 
2. SMP bit set to 1 in ACTLR register, and the linux also SMP enabled, SCU enabled also set. 
3. page set to cached, and shared. 
4. dma-coherent flag in device tree with the device. 
5. aruser set to 0x1f, arcache set to 0xf, arprot set to 1. 

  Thanks. http://www.alteraforum.com/forum/attachment.php?attachmentid=12056&stc=1       - 0xEE500000 | Section | | SP:0x2E500000 | NS=0, nG=0, S=1, AP=0x1, TEX=0x1, Domain=0, XN=1, C=1, B=1, PXN=0