Hi Scott, Thanks for ur reply,
Problem got solved after increasing the TLB entry size of flash to 256MB. Now u-boot booted properly and able to get the prompt. On Tue, Oct 23, 2012 at 5:28 AM, Scott Wood <scottw...@freescale.com> wrote: > On 10/18/2012 05:50:23 AM, diyaa wrote: > >> >> Hi >> >> I am working on a custom board (VPX Based P2020 board) and trying to port >> u-boot-2011.09 (supports P2020 RDB) in it . Our board is similar to >> P2020RDB >> board and the technical specification is shown below , >> > > You should always try with the latest version when asking for help (even > if you will eventually need to use an older version for some other (usually > not very good) reason). > > > ->Processor >> >> Freescale QorIQ P2020 processor >> Dual PowerPC e500v2 cores at up to 1.2 GHz >> 512 kB of shared L2 cache >> >> ->Memory >> >> 1 GB of DDR3-600 SDRAM >> 128 MB of NOR flash (16-bit) >> >> Through Codewarroier Emulator Tool, We checked the DDR,FLASH,Uart console >> and its working fine without any issue. >> >> when we ported u-boot (u-boot-2011.09) at boot rom location 0xFFF80000, it >> fails at invalidate_tlbs in cpu_init_early_f and cannot proceed to get >> serial console .we probed the flash CS while poweron boot , processor is >> keeping bunch of CS( confirms processor able to access flash) >> >> >> Why its getting held up while invalidating tlb's >> > > Are you sure that's where it's failing? It could be that you just can't > single step through that boot phase. There were recently applied patches > to shrink the "undebuggable" window somewhat. > > If that's not it, probably there's no IPROT TLB entry covering the address > you're running out of, or covering the initial RAM area. Have you tried > dumping the TLB? > > -Scott >
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