On Sun, 07 Jul 2013 02:15:17 -0700, Suriyan Ramasami wrote: Hi Suriyan,
> Hi wonderful folks! > > I own an odroid-u2 and the u-boot that comes with it does not > have usb support. Its configuration is smdk4412 and I do not find > that in the u-boot sources. I see it in the arndale and harkernel > branches. > > I do see that usb support was added to the arndale platform - > which is exynos5 based. Is it easy to port it for exynos4412? Patches for Exynos4412 based board (TRATS2) were already sent on the mailing list: http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/161578/match=introduce+samsung's+new+board+trats2 Please refer to them. It shall be relatively easy to add odroid-u2 support based on TRATS2. > > I did try it porting on my own accord and am listing it below... > > I seem to be hitting issues in drivers/usb/host/ehci-exynos.c -> > function setup_usb_phy(struct exynos_usb_phy *usb). > Would passing the correct address of usb for the exynos4412 do the > trick? If so what should it be? > In this same file ehci_hcd_init() uses gpio->x3 and gpio->d1. In > exynos4 looks like x3 is from gpio_part2. Also, do the d1 and x3 > translate to the same gpiod1 and gpiox3 in the exynos4412? > > Furthermore, ehci-exynos.c uses functions from > arch/arm/cpu/armv7/exynos/system.c which for the most part are > exynos5 oriented and do nothing for exynos4. > > Can someone guide me as to what I could do, or some pointers to > helpful docs? I do have the Exynos 4412 user manual. > > Thanks > - Suriyan -- Best regards, Lukasz Majewski Samsung R&D Institute Poland (SRPOL) | Linux Platform Group _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
