u-boot dns320
u-boot support for dlink dns320 boards and other own notes
tested with u-boot 2015.10
how to use
clone u-boot git repository and copy content over.
wget ftp://ftp.denx.de/pub/u-boot/u-boot-2015.10.tar.bz2
tar xf u-boot-2015.10.tar.bz2
git clone https://github.com/avoidik/board_dns320.git
cp -r board_dns320/* u-boot-2015.10/
export CROSS_COMPILE=arm-linux-gnueabi-
make distclean && make dns320_config && make u-boot.kwb
boot new u-boot
we need usb-ttl converter for this purposes
./tools/kwboot -p -b u-boot.kwb -B115200 -t /dev/ttyUSB0
we can copy u-boot.kwb file to ext2 usb flash drive and permanently overwrite u-boot
overwrite u-boot
usb reset ; ext2load usb 0:1 0x1000000 /u-boot.kwb
nand erase 0x000000 0xe0000
nand write 0x1000000 0x000000 0xe0000
reset
mtd-partitions layout
0x000000000000-0x000000100000 : "u-boot"
0x000000100000-0x000000600000 : "uImage" (<-- kernel)
0x000000600000-0x000000b00000 : "ramdisk" (<-- uRamdisk)
0x000000b00000-0x000007100000 : "image" (<-- image.cfs)
0x000007100000-0x000007b00000 : "mini firmware"
0x000007b00000-0x000008000000 : "config" (<-- default.tar.gz)
we can use dns323-firmware-tools to extract partitions from binary firmware and u-boot to write this partitions back from ext2 usb flash drive
setenv mtdparts 'mtdparts=orion_nand:1024k(u-boot),5120k(uImage),5120k(ramdisk),104448k(image),10240k(mini-firmware),5120k(config)'
usb reset
ext2load usb 0:1 0x100000 /mtd-orig/mtd1
nand erase.part uImage
nand write 0x100000 uImage
ext2load usb 0:1 0x100000 /mtd-orig/mtd2
nand erase.part ramdisk
nand write 0x100000 ramdisk
ext2load usb 0:1 0x100000 /mtd-orig/mtd3
nand erase.part image
nand write 0x100000 image
ext2load usb 0:1 0x100000 /mtd-orig/mtd4
nand erase.part mini-firmware
nand write 0x100000 mini-firmware
ext2load usb 0:1 0x100000 /mtd-orig/mtd5
nand erase.part config
nand write 0x100000 config
recovery from tftp
use dns323-firmware-tools to extract partitions from binary firmware
setenv bootargs console=ttyS0,115200 root=/dev/ram0 init=/init tftpargs=192.168.1.100:192.168.1.1
setenv ipaddr 192.168.1.100
setenv serverip 192.168.1.1
tftp 0xa00000 uImage
tftp 0xf00000 uRamdisk; bootm 0xa00000 0xf00000
compile kernel
- since 3.18 linux kernel already contains overlayfs code
- kirkwood configuration moved to mvebu_v5_defconfig
wget https://cdn.kernel.org/pub/linux/kernel/v3.x/linux-3.18.25.tar.xz
tar xf linux-3.18.25.tar.xz
cd linux-3.18.25
cp arch/arm/configs/mvebu_v5_defconfig .config
export ARCH=arm
export CROSS_COMPILE=arm-linux-gnueabi-
make distclean && make mrproper
make menuconfig
make zImage modules kirkwood-dns320.dtb
cat arch/arm/boot/dts/kirkwood-dns320.dtb >> arch/arm/boot/zImage
make uImage LOADADDR=0x8000
cp arch/arm/boot/uImage /mnt/boot/uImage
make INSTALL_MOD_PATH=/mnt/rootfs modules_install
sync
you can check my config in custom/.config
late sata initialization
because of late init of the second sata port mdadm can't assemble array during startup, there is two ways to fix this.
in userland
- open /etc/init.d/rcS
- add sleep 30 before line
in kernel (qnap patch)
drivers/ata/sata_mv.c
+//Patch by QNAP: delay SATA disk initialization
+#define QMV_SATA_INIT_DELAY_PHASE 5000 //milliseconds
+////////////////////////////////////////////////////////////////
+
/*
* module options
*/
@@ -4329,7 +4333,11 @@
struct ata_port *ap = host->ports[port];
void __iomem *port_mmio = mv_port_base(hpriv->base, port);
unsigned int offset = port_mmio - hpriv->base;
-
+ // marvell 7042 port 2 port 3 will power on by order every 5 sec
+ if( (port==2) || (port == 3) ){
+ printk("Wait %d seconds to initialize scsi %d.\n",QMV_SATA_INIT_DELAY_PHASE/1000,port);
+ mdelay(QMV_SATA_INIT_DELAY_PHASE);
+ }
ata_port_pbar_desc(ap, MV_PRIMARY_BAR, -1, "mmio");
ata_port_pbar_desc(ap, MV_PRIMARY_BAR, offset, "port");
}
credits
to maintainers and Jamie Lentin and Davide Del Grande
dns320flash.c released under GPL by greatlord