From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans de Goede Date: Mon, 22 Dec 2014 17:45:05 +0100 Subject: [U-Boot] L2 cache and LCD on sunxi In-Reply-To: References: Message-ID: <54984A91.1040708@redhat.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi, On 21-12-14 19:52, Simon Glass wrote: > Hi, > > I ran up a banana PI and noticed that HDMI works in U-Boot. Great! > > Scrolling seems very slow though - is the L2 cache disabled perhaps? I don't think so, but it could be, I think the scrolling code is just very inefficient. Feel free to poke things a bit around this, ARM cache management is not my forte. > Also are there instructions for getting an LCD running in U-Boot? I > have an Olimex A20-OLinuxion-MICRO (what a mouthful!) with a 7 inch > display if that matters. I can't find any useful information so far. He he, your in luck I've been working on LCD support the last few days, and I just got the olimex 7" lcd running on olimex boards :) If you use my current wip tree: https://github.com/jwrdegoede/u-boot-sunxi/tree/sunxi-wip And build for the A20-OLinuXino_MICRO-lcd7_defconfig things should just work, assuming you are using the standard olimex 7" lcd with a standard 40 pins pata cable. Note in order for the kernel to take over the fb you need a small kernel patch on top of 3.19, I've attached the patch. Regards, Hans -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-ARM-dts-sunxi-Add-simplefb-nodes-for-de_be0-lcd0-dis.patch Type: text/x-patch Size: 1127 bytes Desc: not available URL: