On Thursday 05 May 2011 16:08:35 Steven A. Falco wrote:
APM errata CHIP_21 for the 405EX/EXr (from the rev 1.09 document dated 4/27/11) states that rev D processors may wake up with the wrong feature set. This patch implements the APM-proposed workaround.
To enable this patch for your board, add the appropriate define for your CPU to your board header file. See kilauea.h for more information. The following variants are supported:
#define CONFIG_SYS_4xx_CHIP_21_405EX_NO_SECURITY #define CONFIG_SYS_4xx_CHIP_21_405EX_SECURITY #define CONFIG_SYS_4xx_CHIP_21_405EXr_NO_SECURITY #define CONFIG_SYS_4xx_CHIP_21_405EXr_SECURITY
Please note that if you select the wrong define, your board will not boot, and JTAG will be required to recover.
Tested on custom boards using:
CONFIG_SYS_4xx_CHIP_21_405EX_NO_SECURITY sfalco@harris.com CONFIG_SYS_4xx_CHIP_21_405EX_SECURITY eibach@gdsys.de
Signed-off-by: Steve Falco sfalco@harris.com Acked-by: Dirk Eibach eibach@gdsys.de
checkpatch has some minor problems with your patch:
checkpatch.pl patches_misc/[U-Boot]\ [PATCH\ v3]\ PPC405EX\ CHIP_21\ erratum.mbox ERROR: Invalid UTF-8, patch and commit message should be encoded in UTF-8 #122: FILE: arch/powerpc/cpu/ppc4xx/cpu_init.c:241: + * SDR0_ECID3[12:15] is different from PVR[28:31], then � processor is ^
ERROR: Invalid UTF-8, patch and commit message should be encoded in UTF-8 #124: FILE: arch/powerpc/cpu/ppc4xx/cpu_init.c:243: + * required). else � go to step 3. ^
ERROR: Invalid UTF-8, patch and commit message should be encoded in UTF-8 #127: FILE: arch/powerpc/cpu/ppc4xx/cpu_init.c:246: + * SDR0_ECID3[10:11] matches its expected value, then � continue ^
ERROR: Invalid UTF-8, patch and commit message should be encoded in UTF-8 #128: FILE: arch/powerpc/cpu/ppc4xx/cpu_init.c:247: + * executing initialization code, no reset required. else � write ^
total: 4 errors, 0 warnings, 144 lines checked
No need to resend, I fixed this manually.
Applied to u-boot-ppc4xx/master. Thanks.
Best regards, Stefan
-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office@denx.de