Hi, On Tue, 11 Dec 2007 11:22:31 +0530, "Madhusudhan Chikkature Rajashekar" <madhu.cr@xxxxxx> wrote: > Hi, > >>Do you still need to mux between slots if you have three controllers >>available? If so, it's worth doing it to start with. > I do not think that mux between slots is required in 2430 or 3430.So, I > guess the usage of the multislot structure > might not be required. I think it is, X430sdp has only one slot per controller, but let's say someone puts 2 slots using only HSMMC? Then we would need to mux between then and multislot structures would be really helpful if they were already there. > > These platforms have two controllers connected to two separate slots on > the SDP.The TRM of 2430 and 3430 states that > one MMC/SD/SDIO controller can support one MMC memory card,one SD memory > card, or one SDIO card. So only one slot supports HSMMC, is that right? And in this case it makes sense creating a whole new code base for hsmmc controller on omap. PS: try to not top post, it makes things more difficult to track down. ;-) > -----Original Message----- > From: Tony Lindgren [mailto:tony@xxxxxxxxxxx] > Sent: Monday, December 10, 2007 11:30 PM > To: Syed Mohammed, Khasim > Cc: Carlos Aguiar; Chikkature Rajashekar, Madhusudhan; > linux-omap@xxxxxxxxxxxxxxx; linux-omap-open-source@xxxxxxxxxxxxxx; > linux-arm-kernel@xxxxxxxxxxxxxxxxxxxxxx; Pierre Ossman > Subject: Re: [RFC/PATCH 1/4] MMC/SD Controller driver for OMAP2430 > > * Syed Mohammed, Khasim <khasim@xxxxxx> [071208 07:50]: >> >> >> > -----Original Message----- >> > From: linux-omap-open-source-bounces@xxxxxxxxxxxxxx > [mailto:linux-omap- >> > open-source-bounces@xxxxxxxxxxxxxx] On Behalf Of Carlos Aguiar >> > Sent: Friday, December 07, 2007 8:24 PM >> > To: Chikkature Rajashekar, Madhusudhan >> > Cc: linux-omap@xxxxxxxxxxxxxxx; linux-omap-open-source@xxxxxxxxxxxxxx; >> > linux-arm-kernel@xxxxxxxxxxxxxxxxxxxxxx; 'Pierre Ossman' >> > Subject: Re: [RFC/PATCH 1/4] MMC/SD Controller driver for OMAP2430 >> > >> > ext Madhusudhan Chikkature Rajashekar wrote: >> > > This patch adds MMC controller driver for OMAP2430/3430. >> > > >> > > Signed-off-by: Madhusudhan Chikkature<madhu.cr@xxxxxx> >> > > >> > > --- >> > > drivers/mmc/host/Makefile | 9 >> > > drivers/mmc/host/omap_hsmmc.c | 985 >> > ++++++++++++++++++++++++++++++++++++++++++ >> > > 2 files changed, 993 insertions(+), 1 deletion(-) >> > > >> > > Index: linux-omap-2.6/drivers/mmc/host/omap_hsmmc.c >> > > =================================================================== >> >> <snip> >> >> > > >> > Hi Madhu, >> > >> > I'd rather see this code using multislot structures and omap.c instead >> > of defining a whole new codebase for omap2430 and/or omap3. >> > >> > BR, >> > >> > Carlos. >> > >> > >> Hi Carlos, >> >> Thanks for comments. >> >> I remember we had discussed this before as well, as communicated before > the MMC/SD controller on OMAP2430 and 3430 processors is > completely different( in Register width, bits, offsets, configuration etc) > from OMAP2420 and OMAP1 platforms. It's not recommended > to add new MMC controller functionality to existing omap.c. > > Well, this time it actually looks like the MMC controller is > completely different. > >> Yes we will definitely use multi-slot structures. We can add multi-slot > support after we get formal approval of this code base. > > Do you still need to mux between slots if you have three controllers > available? If so, it's worth doing it to start with. > > Regards, > > Tony > > > > > - > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Best Regards, Felipe Balbi http://felipebalbi.com me@xxxxxxxxxxxxxxx - To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
