From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guillaume Gardet Date: Mon, 12 Oct 2015 10:54:04 +0200 Subject: [U-Boot] [RFC] odroid DTB support In-Reply-To: <20151011234553.GA23893@bill-the-cat> References: <5617AF06.9030908@free.fr> <5617B1C0.4010002@samsung.com> <5617B48C.8010603@free.fr> <20151011234553.GA23893@bill-the-cat> Message-ID: <561B752C.4010208@free.fr> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi, Le 12/10/2015 01:45, Tom Rini a ?crit : > On Fri, Oct 09, 2015 at 02:35:24PM +0200, Guillaume Gardet wrote: >> >> Le 09/10/2015 14:23, Przemyslaw Marczak a ?crit : >>> Hello Guillaume, >>> >>> On 10/09/2015 02:11 PM, Guillaume Gardet wrote: >>>> Hi Przemyslaw, >>>> >>>> I would like to add DTB support for odroid board to be able to boot >>>> upstream kernel easily. >>>> >>>> I see 2 ways to do it: >>>> * Add CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG support to set 'board_rev' >>>> and 'board_name' env vars. Then, you need a 'findfdt' script to check >>>> 'board_rev' and set fdtfile accordingly (as done for OMAP4 panda board) >>>> * Set fdtfile name directly (as done for rpi or igep00x0). >>>> >>>> What would you prefer? >>>> >>>> >>>> Guillaume >>>> >>>> >>> Is, that the reason of adding the boot script by your last patches? >> No, we need a boot script, because this is the way we boot our >> openSUSE images (we boot with an initrd and some special bootargs). > Hang on, exynos stuff uses the generic distro hooks. Can you take a > look at doc/README.distro and see what openSUSE can hook into / provide > some feedback on what needs doing? Thanks! This is true for odroid XU3 (Exynos5 based) but Odroid U3/X2 (Exynos4 based) has no generic distro hooks at the moment. What we need: * Boot on boot.scr (mainly to define kernel name, initrd name and bootargs) * Use (pre-defined) fdtfile, or be able to define it manually if not already set (or not in sync with Linux kernel) Guillaume