From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Vasut Date: Sat, 13 Oct 2012 04:59:47 +0200 Subject: [U-Boot] [PATCH v5 1/2] qi_lb60: add nand spl support In-Reply-To: <1350007160-16383-2-git-send-email-xiangfu@openmobilefree.net> References: <1350007160-16383-1-git-send-email-xiangfu@openmobilefree.net> <1350007160-16383-2-git-send-email-xiangfu@openmobilefree.net> Message-ID: <201210130459.47912.marex@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 Dear xiangfu at openmobilefree.net, > From: Xiangfu > > The JZ4740 CPU can load 8KB from two different addresses: > 1. the normal area up to 8KB starting from NAND flash address 0x00000000 > 2. the backup area up to 8KB starting from NAND flash address 0x00002000 > > After create u-boot-spl.bin. it needs those 4 commands create final image > for jz4740 cpu. ~~~~ > dd if=spl/u-boot-spl.bin of=u-boot-nand.bin conv=sync bs=8192 count=1 > dd if=spl/u-boot-spl.bin of=u-boot-nand.bin conv=sync,notrunc > oflag=append bs=8192 count=1 tr '\0' '\377' < /dev/zero | dd > of=u-boot-nand.bin conv=sync,notrunc oflag=append bs=16384 count=1 cat > u-boot-nand.bin u-boot.bin > u-boot-nand-final.bin > ~~~~ Can you not do this in the linker script? Or implement CPU-specific build target that does this? [...] Best regards, Marek Vasut