+Alison and York for LS1021A_xxx boards.. On Tue, Jul 4, 2017 at 12:36 PM, Vignesh R <vigne...@ti.com> wrote: > Hi Bin, > > On Monday 03 July 2017 06:49 PM, Bin Meng wrote: >> Hi Vignesh, >> >> On Thu, Jun 29, 2017 at 2:41 PM, Vignesh R <vigne...@ti.com> wrote: >>> Hi Stefan, >>> >>> On Thursday 29 June 2017 11:15 AM, Stefan Roese wrote: >>>> Hi, >>>> >>>> as you might have noticed, Bin Meng is currently greatly improving >>>> the U-Boot xHCI support. While doing this, he noticed that some >>>> additions are more complex and especially ugly to add, since some >>>> users of the xHCI support have not enabled CONFIG_DM_USB. This >>>> adds ugly #ifdef's, which we really would like to avoid. Because >>>> of this we checked, which boards exactly are using xHCI without >>>> DM_USB enabled. Here a complete list of all the boards: >>>> >>>> ls1012ardb_qspi_SECURE_BOOT >>>> ls1021atwr_nor_SECURE_BOOT >>>> am43xx_hs_evm >>>> am57xx_hs_evm >>>> ls1021aqds_nand >>>> ls1021atwr_nor >>>> ls1021atwr_qspi >>>> cm_t43 >>>> ls1021atwr_nor_lpuart >>>> ls1021aqds_sdcard_qspi >>>> k2hk_hs_evm >>>> am43xx_evm >>>> ls1021aqds_qspi >>>> am57xx_evm_nodt >>>> k2g_hs_evm >>>> ls1021atwr_sdcard_qspi >>>> am43xx_evm_ethboot >>>> ls1021aqds_sdcard_ifc >>>> k2l_evm >>>> am43xx_evm_usbhost_boot >>>> am43xx_evm_qspiboot >>>> k2g_evm >>>> am57xx_evm >>>> ls1021atwr_sdcard_ifc >>>> cl-som-am57x >>>> k2hk_evm >>>> k2e_evm >>>> ls1021atwr_sdcard_ifc_SECURE_BOOT >>>> ls1021aqds_nor_SECURE_BOOT >>>> k2e_hs_evm >>> >>> For TI platforms, there is some work needed to convert xhci-dwc3, >>> xhci-omap and xhci-keystone to DM (under drivers/usb/host) >>> >>> But the bigger concern of enabling DM_USB is with gadget framework, >>> which is not DM compliant yet. There is a significant amount work[1][2] >>> there before dwc3 gadget can be moved to DM and we can enable DM_USB. >>> >>> [1]https://lists.denx.de/pipermail/u-boot/2017-June/296081.html >>> [2]https://lists.denx.de/pipermail/u-boot/2017-June/295370.html >> >> I thought gadget and host support are separate, so host support like >> xHCI can be moved to DM without affecting gadget support, no? Are they >> sharing some codes? >> > > Right now, the assumption is if DM_USB is enabled, then both host and > gadget frameworks use DM along with DT. If, DM_USB is enabled, then > board specific registration of gadget drivers don't happen. Also, I see > couple of gadget drivers like ether.c. ci_udc.c (and everything under > musb_new) seem use DM_USB already, making it hard for DM based host and > non DM gadget to exist. > > Some work would be needed to remove dependency b/w DM_USB and gadget > support. >
Thanks for the clarification! Regards, Bin _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
