133 lines
4.5 KiB
Bash
Executable File
133 lines
4.5 KiB
Bash
Executable File
#!/bin/bash
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SCRIPTDIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
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source $SCRIPTDIR/common.sh
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FEL=fel
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echo "BUILDROOT_OUTPUT_DIR = $BUILDROOT_OUTPUT_DIR"
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NAND_ERASE_BB=false
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if [ "$1" == "erase-bb" ]; then
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NAND_ERASE_BB=true
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fi
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PATH=$PATH:$BUILDROOT_OUTPUT_DIR/host/usr/bin
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TMPDIR=`mktemp -d -t chipflashXXXXXX`
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PADDED_SPL="$TMPDIR/sunxi-padded-spl"
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PADDED_SPL_SIZE=0
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UBOOT_SCRIPT="$TMPDIR/uboot.scr"
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UBOOT_SCRIPT_MEM_ADDR=0x43100000
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UBOOT_SCRIPT_SRC="$TMPDIR/uboot.cmds"
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SPL="$BUILDROOT_OUTPUT_DIR/images/sunxi-spl.bin"
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SPL_MEM_ADDR=0x43000000
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UBOOT="$BUILDROOT_OUTPUT_DIR/images/u-boot-dtb.bin"
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PADDED_UBOOT="$TMPDIR/padded-uboot"
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PADDED_UBOOT_SIZE=0xc0000
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UBOOT_MEM_ADDR=0x4a000000
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UBI="$BUILDROOT_OUTPUT_DIR/images/rootfs.ubi"
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UBI_MEM_ADDR=0x4b000000
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UBI_SIZE=`filesize $UBI | xargs printf "0x%08x"`
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prepare_images() {
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local in=$SPL
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local out=$PADDED_SPL
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if [ -e "$out" ]; then
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rm "$out"
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fi
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# The BROM cannot read 16K pages: it only reads 8k of data at most.
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# Split the SPL image in 8k chunks and pad each chunk with 8k of random
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# data to limit the impact of repeated patterns on the MLC chip.
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dd if=$in of=$out bs=8k count=1 skip=0 conv=sync
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dd if=/dev/urandom of=$out bs=8k count=1 seek=1 conv=sync
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dd if=$in of=$out bs=8k count=1 skip=1 seek=2 conv=sync
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dd if=/dev/urandom of=$out bs=8k count=1 seek=3 conv=sync
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dd if=$in of=$out bs=8k count=1 skip=2 seek=4 conv=sync
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dd if=/dev/urandom of=$out bs=8k count=1 seek=5 conv=sync
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PADDED_SPL_SIZE=`filesize $out | xargs printf "0x%08x"`
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# Align the u-boot image on a page boundary
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dd if=$UBOOT of=$PADDED_UBOOT bs=16k conv=sync
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UBOOT_SIZE=`filesize $PADDED_UBOOT | xargs printf "0x%08x"`
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dd if=/dev/urandom of=$PADDED_UBOOT seek=$((UBOOT_SIZE / 0x4000)) bs=16k count=$(((PADDED_UBOOT_SIZE - UBOOT_SIZE) / 0x4000))
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}
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prepare_uboot_script() {
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if [ "$NAND_ERASE_BB" = true ] ; then
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echo "nand scrub -y 0x0 0x200000000" > "${UBOOT_SCRIPT_SRC}"
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else
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echo "nand erase 0x0 0x200000000" > "${UBOOT_SCRIPT_SRC}"
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fi
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echo "sunxi_nand config spl" >> "${UBOOT_SCRIPT_SRC}"
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echo "nand write $SPL_MEM_ADDR 0x0 $PADDED_SPL_SIZE" >> "${UBOOT_SCRIPT_SRC}"
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echo "nand write $SPL_MEM_ADDR 0x100000 $PADDED_SPL_SIZE" >> "${UBOOT_SCRIPT_SRC}"
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echo "nand write $SPL_MEM_ADDR 0x200000 $PADDED_SPL_SIZE" >> "${UBOOT_SCRIPT_SRC}"
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echo "nand write $SPL_MEM_ADDR 0x300000 $PADDED_SPL_SIZE" >> "${UBOOT_SCRIPT_SRC}"
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echo "nand write $SPL_MEM_ADDR 0x400000 $PADDED_SPL_SIZE" >> "${UBOOT_SCRIPT_SRC}"
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echo "nand write $SPL_MEM_ADDR 0x500000 $PADDED_SPL_SIZE" >> "${UBOOT_SCRIPT_SRC}"
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echo "nand write $SPL_MEM_ADDR 0x600000 $PADDED_SPL_SIZE" >> "${UBOOT_SCRIPT_SRC}"
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echo "nand write $SPL_MEM_ADDR 0x700000 $PADDED_SPL_SIZE" >> "${UBOOT_SCRIPT_SRC}"
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echo "sunxi_nand config default" >> "${UBOOT_SCRIPT_SRC}"
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echo "nand write $UBOOT_MEM_ADDR 0x800000 $PADDED_UBOOT_SIZE" >> "${UBOOT_SCRIPT_SRC}"
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echo "setenv bootargs root=ubi0:rootfs rootfstype=ubifs rw earlyprintk ubi.mtd=4" >> "${UBOOT_SCRIPT_SRC}"
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echo "setenv bootcmd 'source \${scriptaddr}; nand slc-mode on; mtdparts; ubi part UBI; ubifsmount ubi0:rootfs; ubifsload \$fdt_addr_r /boot/sun5i-r8-chip.dtb; ubifsload \$kernel_addr_r /boot/zImage; bootz \$kernel_addr_r - \$fdt_addr_r'" >> "${UBOOT_SCRIPT_SRC}"
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echo "saveenv" >> "${UBOOT_SCRIPT_SRC}"
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echo "echo going to fastboot mode" >>"${UBOOT_SCRIPT_SRC}"
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echo "fastboot 0" >>"${UBOOT_SCRIPT_SRC}"
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echo "echo " >>"${UBOOT_SCRIPT_SRC}"
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echo "echo *****************[ BOOT ]*****************" >>"${UBOOT_SCRIPT_SRC}"
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echo "echo " >>"${UBOOT_SCRIPT_SRC}"
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echo "boot" >>"${UBOOT_SCRIPT_SRC}"
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mkimage -A arm -T script -C none -n "flash CHIP" -d "$UBOOT_SCRIPT_SRC" "$UBOOT_SCRIPT"
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}
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wait_for_fastboot() {
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echo -n "waiting for fastboot...";
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for ((i=$TIMEOUT; i>0; i--)) {
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if [[ ! -z "$(fastboot devices)" ]]; then
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echo "OK";
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return 0;
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fi
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echo -n ".";
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sleep 1
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}
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echo "TIMEOUT";
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return 1
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}
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echo == preparing images ==
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prepare_images
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prepare_uboot_script
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echo == upload the SPL to SRAM and execute it ==
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${FEL} spl $SPL
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sleep 1 # wait for DRAM initialization to complete
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echo == upload spl ==
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${FEL} write $SPL_MEM_ADDR "$PADDED_SPL"
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echo == upload u-boot ==
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${FEL} write $UBOOT_MEM_ADDR "$PADDED_UBOOT"
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echo == upload u-boot script ==
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${FEL} write $UBOOT_SCRIPT_MEM_ADDR "$UBOOT_SCRIPT"
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echo == execute the main u-boot binary ==
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${FEL} exe $UBOOT_MEM_ADDR
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echo == waiting for fastboot ==
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if wait_for_fastboot; then
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fastboot -S 0 -u flash UBI "${BUILDROOT_OUTPUT_DIR}/images/rootfs.ubi"
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fastboot continue
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else
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rm -rf "${TMPDIR}"
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exit 1
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fi
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