From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Babic Date: Tue, 01 Apr 2014 10:15:50 +0200 Subject: [U-Boot] [PATCH 1/2] arm: mxs: Adjust the load address of U-Boot and SPL for HAB In-Reply-To: <1394046074-6389-1-git-send-email-marex@denx.de> References: <1394046074-6389-1-git-send-email-marex@denx.de> Message-ID: <533A75B6.7090104@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 05/03/2014 20:01, Marek Vasut wrote: > When using HAB, there are additional special requirements on the placement of > U-Boot and the U-Boot SPL in memory. To fullfill these, this patch moves the > U-Boot binary a little further from the begining of the DRAM, so the HAB CST > and IVT can be placed in front of the U-Boot binary. This is necessary, since > both the U-Boot and the IVT must be contained in single CST signature. To > make things worse, the IVT must be concatenated with one more entry at it's > end, that is the length of the entire CST signature, IVT and U-Boot binary > in memory. By placing the blocks in this order -- CST, IVT, U-Boot, we can > easily align them all and then produce the length field as needed. > > As for the SPL, on i.MX23/i.MX28, the SPL size is limited to 32 KiB, thus > we place the IVT at 0x8000 offset, CST right past IVT and claim the size > is correct. The HAB library accepts this setup. > > Finally, to make sure the vectoring in SPL still works even after moving > the SPL from 0x0 to 0x1000, we add a small function which copies the > vectoring code and tables to 0x0. This is fine, since the vectoring code > is position independent. > > Signed-off-by: Marek Vasut > Cc: Stefano Babic > --- Applied to u-boot-imx, thanks ! Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de =====================================================================