* Liu Dave-R63238 | 2009-05-15 08:47:04 [+0800]: >> (v1.3.0-rc2): >> - ddr->sdram_mode 0x00400a62; >> - ddr->sdram_data_init = 0x00000000; >> - ddr->sdram_cfg_2 = 0x04401000; >> >> to (v2009.03): >> - ddr->sdram_mode 0x00440a62 >> - ddr->sdram_data_init 0xdeadbeef >> - ddr->sdram_cfg_2 0x24401000 >> >> I cherry-picked commit 6a819783 aka "fsl-ddr: Fix two bugs in the ddr >> infrastructure" but nothing improved. >> >> Now I've picked v1.3.0-rc2 and linux v2.6.29. With that combination >> everything seems to work however I experience sometimes ICE while >> compiling. If I continue to compile from that point there is no ICE >> anymore so it does not look like a gcc bug to me. >> >> Any suggestions? Someone with similar problems? > >It seems like you are happening the DDR memory issue. >Have a dump all of DDR registers for both v1.3.0-rc2 and v2009.03. >Check if anything is different.
Those three I've posted are the only ones that have changed. I've compared the 16 regs which are set in fixed_sdram(). Do you want me to go through _all_ of them? As I wrote later, with v1.3.0-rc2 I get some ICE during compile sessions. So it looks to me like those timings are not bullet proof but friendlier than in v2009.03 Sebastian _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
