Dear Otavio Salvador, > On Wed, Jan 23, 2013 at 7:04 AM, Stefano Babic <sba...@denx.de> wrote: > > On 22/01/2013 02:56, Otavio Salvador wrote: > >> On Mon, Jan 21, 2013 at 11:50 PM, Marek Vasut <ma...@denx.de> wrote: > >>> Dear Otavio Salvador, > >>> > >>> NAK. DMA works on MX28 and works in Linux on MX23, therefore the DMA is > >>> not broken on either. Thus there's no reason to introduce such > >>> "force_pio" stuff. > >> > >> Lack of time to work on it is one reason. I won't be able to work on > >> it for some days and I prefer a working solution than skip it for > >> another release. > >> > >> -- > >> Otavio Salvador O.S. Systems > >> E-mail: ota...@ossystems.com.br http://www.ossystems.com.br > >> Mobile: +55 53 9981-7854 http://projetos.ossystems.com.br > > > > Hi Otavio, hi Marek, > > > > let me say some words about this discussion. I agree that if there is no > > support for DMA for MX23, we could add support with PIO mode. However, > > there should be a very good reason, because as far as I understand, > > added support for DMA is valid for mxs platform. The solution introduced > > with this patchset lets also the door open for people that can use MX28 > > in PIO mode. I think (I have already seen in ML Marek's patchset for it) > > the way to fix DMA for mx23 and then add support for MMC is the rught > > way to do. > > So you'd like to have this patch ported to Marek's patchset so the > support for PIO mode is kept available? Instead of enabling it for > MX23 we can have a config option which allows force PIO mode and > disable DMA. This is what you want?
Forcing PIO is nonsense, why would it be of any use? Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
