> -----Original Message----- > From: Wolfgang Denk [mailto:w...@denx.de] > Sent: Tuesday, February 17, 2009 5:58 PM > To: John Rigby > Cc: u-boot@lists.denx.de; Martha Marx > Subject: Re: [U-Boot] [PATCH] ADS5121 Add mem config for current rev4 > boards > > Dear John Rigby, > > In message <1234908276-26381-1-git-send-email-jri...@freescale.com> you > wrote: > > From: Martha Marx <mm...@silicontkx.com> > > > > The following configurations are now supported: > > > > ads5121_config > > rev 4.1 boards with Elpida memory > > > > ads5121_rev4m_config > > rev 4 boards with Micron memory > > This shall not be done. All possible memory configurations shall be > handled by a single binary image of U-Boot. > > > ads5121_rev3_config > > rev3 boards which also have Micron memory but have the > > older rev silicon > > It makes little sense to me to add new config options for old boards > that are EOL and not distributed any more. > > > diff --git a/board/ads5121/ads5121.c b/board/ads5121/ads5121.c > > index 6c40e94..cb607b4 100644 > > --- a/board/ads5121/ads5121.c > > +++ b/board/ads5121/ads5121.c > > @@ -182,29 +182,50 @@ long int fixed_sdram (void) > > > > /* Initialize DDR */ > > for (i = 0; i < 10; i++) > > - im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP; > > - > > - im->mddrc.ddr_command = CONFIG_SYS_MICRON_PCHG_ALL; > > - im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP; > > - im->mddrc.ddr_command = CONFIG_SYS_MICRON_RFSH; > > - im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP; > > - im->mddrc.ddr_command = CONFIG_SYS_MICRON_RFSH; > > - im->mddrc.ddr_command = CONFIG_SYS_MICRON_NOP; > > + im->mddrc.ddr_command = CONFIG_SYS_DDR_NOP; > > + > > + im->mddrc.ddr_command = CONFIG_SYS_DDR_PCHG_ALL; > > + im->mddrc.ddr_command = CONFIG_SYS_DDR_NOP; > > + im->mddrc.ddr_command = CONFIG_SYS_DDR_RFSH; > > + im->mddrc.ddr_command = CONFIG_SYS_DDR_NOP; > > + im->mddrc.ddr_command = CONFIG_SYS_DDR_RFSH; > > + im->mddrc.ddr_command = CONFIG_SYS_DDR_NOP; > > While performing such a global rename, please let's get rid of the > CONFIG_SYS_ names. These are NOT options that can be changed by the > user in the board config file, so they should not look like such. >
CONFIG_SYS_ was in there already for all the memory #defs (as of the global rename in October) IF you look -- the only rename I did was to change _MICRON_ to _DDR_ and it is very appropriate for it to be in this patch. > > diff --git a/include/configs/ads5121.h b/include/configs/ads5121.h > > index 8fda3f2..2e6ceef 100644 > > --- a/include/configs/ads5121.h > > +++ b/include/configs/ads5121.h > ... > > +#elif defined(CONFIG_ADS5121_REV3) || \ > > + defined(CONFIG_ADS5121_REV4M) > > #define CONFIG_SYS_MDDRC_SYS_CFG 0xFA804A00 > > #define CONFIG_SYS_MDDRC_SYS_CFG_RUN 0xEA804A00 > > #define CONFIG_SYS_MDDRC_TIME_CFG1 0x68EC1168 > > #define CONFIG_SYS_MDDRC_TIME_CFG2 0x34310864 > > +#else > > +#define CONFIG_SYS_MDDRC_SYS_CFG 0xFA802b40 > > +#define CONFIG_SYS_MDDRC_SYS_CFG_RUN 0xEA802b40 > > +#define CONFIG_SYS_MDDRC_TIME_CFG1 0x690e1189 > > +#define CONFIG_SYS_MDDRC_TIME_CFG2 0x35410864 > > #endif > > If I understand correctly, these are the only real changes to the > memory init sequence right? This is virtually invisible in the huge > number of variable renames. You should split this into two separate > patches, one doing the renames only, and one adding the real new > configuration. > See comment above. > But as mentioned above - the key point is that we need to come up > with a solution to support all used memory types with a single binary > image. > > The memory change was made due to a supply problem .. all new boards will have the new memory but unfortunately there is no new rev (or CPLD reg setting) for these boards (it is not an unwillingness on my part) I will attempt to create one binary using Micron settings for rev 4.0 and below, Elpida settings for rev 4.1 and beyond and for the small number of 4.1 Micron boards out there I will attempt to have them run with Elpida settings (the memory will run slightly more slowly) I would like to keep an #ifdef in there to force Micron settings, however. > I think such a patch cannot go into mainline (even if the formal > issues mentioned above were fixed). Can we please have a solution > that avoilds an explosin of differnt, incompatible binary images and > config options just for minor board modifications like different > memory types? > > Thanks. > > Wolfgang Denk > > -- > DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de > A committee is a group that keeps the minutes and loses hours. > -- View this message in context: http://www.nabble.com/-U-Boot---PATCH--ADS5121-Add-mem-config-for-current-rev4-boards-tp22067475p22077983.html Sent from the Uboot - Users mailing list archive at Nabble.com. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
