From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Petazzoni Date: Sat, 11 Jul 2015 14:11:37 +0200 Subject: [Buildroot] [PATCH 1/1] boot/uboot: add support for i.MX28 NAND format In-Reply-To: <1427645447-2419-1-git-send-email-joerg.krause@embedded.rocks> References: <1427645447-2419-1-git-send-email-joerg.krause@embedded.rocks> Message-ID: <20150711141137.23d3de04@free-electrons.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Dear J?rg Krause, On Sun, 29 Mar 2015 18:10:46 +0200, J?rg Krause wrote: > Allow to generate 'u-boot.nand', Freescale i.MX28 BootStream format (.sb) > with a header for booting from NAND flash. > > There are two possibilities when preparing an image writable to NAND flash: > 1) The NAND was not written at all yet or the BCB (Boot Control Blocks) is > broken. In this case, the NAND image 'u-boot.nand' needs to written. > 2) The NAND flash was already written with a good BCB. This applies after > 'u-boot.nand' was correctly written. There is no need to write the BCB > again. In this case, the bootloader can be upgraded by writing 'u-boot.sb'. > > To satisfy both cases 'u-boot.nand' as well as the make target 'u-boot.sb' are > copied to the binaries directory. > > mxsboot for NAND images needs all three parameters typed in as integer values > (hex values do not work). The default values choosen are typical sizes for a > NAND flash. > > For more information see: > http://www.denx-cs.de/doku/?q=m28evkrunuboot > > Commit Note: This patch is based on top of > "[PATCH v2 1/2] boot/uboot: add support for i.MX28 SD format" > http://patchwork.ozlabs.org/patch/453116/ > > --- > Changes v1 -> v2 (all suggested by Arnout Vandecappelle): > - Rebase on top of boot/uboot: add support for i.MX28 SD format > http://patchwork.ozlabs.org/patch/453116/ > - Remove trailing whitespace > - Fix typo and wrapping > - Add an explanation like in the commit log to the help text, so the user > knows why he gets two images (u-boot.nand and u-boot.sb) in the binaries > directory > - Explicitly mention in mxsboots options help text that the value has to > be "a decimal integer value" > - erase -> eraseblock in BR2_TARGET_UBOOT_FORMAT_NAND_ERASE_SIZE > - Add dependency on host-elftosb Applied, thanks. Thomas -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com