LPAE boot failed after commit 7fb00c2fca4b6: "ARM: 8114/1: LPAE: load upper bits of early TTBR0/TTBR1"

Jingchang Lu jingchang.lu at freescale.com
Wed Sep 3 03:08:31 PDT 2014


Hi, Russell and Konstantin,

  Our one ARMv7 Cortex-A7 based dual core SoC with LPAE support could not boot since next-20140811 on the linux-next tree, 
I notice that there is a commit 7fb00c2fca4b6c58be521…, “ARM: 8114/1: LPAE: load upper bits of early TTBR0/TTBR1”.
Revert that commit the SoC boots successfully, do you have any suggestion on this, thanks. 

  related SoC hardware and kernel configurations are:
       DRAM PHYS address: 0x80000000
       CONFIG_VMSPLIT_2G
       CONFIG_PAGE_OFFSET=0x80000000
       CONFIG_ARM_LPAE


Best Regards,
Jingchang



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