RE: [v2, 07/11] mmc: fsl_esdhc: support eMMC HS400 mode

Hi Peng, > -Original Message- > From: Peng Fan > Sent: Monday, July 20, 2020 9:42 AM > To: Y.b. Lu ; u-boot@lists.denx.de; Priyanka Jain > ; 'Jaehoon Chung' > Cc: Y.b. Lu > Subject: RE: [v2, 07/11] mmc: fsl_esdhc: support eMMC HS400 mode > >

RE: [v2, 07/11] mmc: fsl_esdhc: support eMMC HS400 mode

> Subject: [v2, 07/11] mmc: fsl_esdhc: support eMMC HS400 mode > > The process for eMMC HS400 mode for eSDHC is, > > 1. Perform the Tuning Process at the HS400 target operating frequency. >Latched the clock division value. > 2. if read transaction, then set the SDTIMNGCTL[FLW_CTL_BG]. > 3. Sw