On 05/21/2014 08:52 PM, Hector Palacios wrote: > On 05/21/2014 04:20 AM, Jaehoon Chung wrote: >> Hi, Hector. >> >> On 05/21/2014 01:37 AM, Hector Palacios wrote: >>> Hi, >>> >>> On 05/16/2014 06:59 AM, Jaehoon Chung wrote: >>>> Signed-off-by: Jaehoon Chung <jh80.ch...@samsung.com> >>>> Tested-by: Lukasz Majewski <l.majew...@samsung.com> >>>> Acked-by: Lukasz Majewski <l.majew...@samsung.com> >>> >>> What platforms did you test DDR mode on? >> >> I have tested DDR mode with exynos board. >> >>> I tried this on an Freescale i.MX6 based platform but the driver returned >>> error code COM_ERR (-18) when trying to switch to any of the DDR modes. I >>> guess the fsl_esdhc.c driver needs some adaptation for DDR to work. >> >> I didn't know how work DDR mode at fsl_esdhc.c.(If you share the host >> controller TRM, it's helpful to me.) >> Host controller also need to change the DDR mode. >> >> I wonder your board didn't work not to enable the DDR mode? > > Thank you, yes the fsl_esdhc.c driver does not yet support enabling of DDR > mode. > I think it should be easy to implement, I believe it is just a question of > changing the clock frequency. I need to change the clock frequency, too. I guess that if controller support the DDR mode, there is a register relevant to DDR mode.
Best Regards, Jaehoon Chung > > Best regards, > -- > Hector Palacios > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
