Hello, I am trying to boot the cubietruck with a minimal ramdisk. However, it seems to hang at "Starting kernel..." whenever I pass bootz a ramdisk load address.
I have built the latest cubietruck config from here: https://github.com/cubieboard/u-boot-sunxi Here is the boot log: (bootz 0x40008000 0x42000000 0x41000000) U-Boot 2014.01-09730-gb5bd4c9 (Mar 09 2014 - 05:55:17) Allwinner Technology CPU: Allwinner A20 (SUN7I) Board: Cubietruck I2C: ready DRAM: 2 GiB WARNING: Caches not enabled MMC: SUNXI SD/MMC: 0 *** Warning - bad CRC, using default environment In: serial Out: serial Err: serial Net: mii0 Warning: failed to set MAC address Hit any key to stop autoboot: 0 sun7i# setenv ethaddr 00:11:22:33:44:a3 sun7i# setenv autoload no sun7i# dhcp Waiting for PHY auto negotiation to complete... done ENET Speed is 1000 Mbps - FULL duplex connection BOOTP broadcast 1 BOOTP broadcast 2 DHCP client bound to address 192.168.1.218 sun7i# setenv serverip 192.168.1.1 sun7i# tftp 0x40008000 192.168.1.1:cubie/zImage Using mii0 device TFTP from server 192.168.1.1; our IP address is 192.168.1.218 Filename 'cubie/zImage'. Load address: 0x40008000 Loading: ################################################################# ######################################################### 2.7 MiB/s done Bytes transferred = 1779480 (1b2718 hex) sun7i# tftp 0x42000000 192.168.1.1:cubie/buildroot.cpio.gz Using mii0 device TFTP from server 192.168.1.1; our IP address is 192.168.1.218 Filename 'cubie/buildroot.cpio.gz'. Load address: 0x42000000 Loading: ############################################ 2.7 MiB/s done Bytes transferred = 642602 (9ce2a hex) sun7i# tftp 0x41000000 192.168.1.1:cubie/sun7i-a20-cubietruck.dtb Using mii0 device TFTP from server 192.168.1.1; our IP address is 192.168.1.218 Filename 'cubie/sun7i-a20-cubietruck.dtb'. Load address: 0x41000000 Loading: # 2 MiB/s done Bytes transferred = 12304 (3010 hex) sun7i# setenv bootargs console=ttyS0,115200 debug earlyprintk rw root=/dev/ram0 rw sun7i# bootz 0x40008000 0x42000000 0x41000000 Kernel image @ 0x40008000 [ 0x000000 - 0x1b2718 ] ## Loading init Ramdisk from Legacy Image at 42000000 ... Image Name: Created: 2014-03-09 14:53:18 UTC Image Type: ARM Linux RAMDisk Image (uncompressed) Data Size: 642538 Bytes = 627.5 KiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK ## Flattened Device Tree blob at 41000000 Booting using the fdt blob at 0x41000000 Loading Ramdisk to bfdc9000, end bfe65dea ... OK Loading Device Tree to 40ff9000, end 40fff00f ... OK Starting kernel ... Now if I boot with bootz 0x40008000 - 0x41000000 everything works fine: U-Boot 2014.01-09730-gb5bd4c9 (Mar 09 2014 - 05:55:17) Allwinner Technology CPU: Allwinner A20 (SUN7I) Board: Cubietruck I2C: ready DRAM: 2 GiB WARNING: Caches not enabled MMC: SUNXI SD/MMC: 0 *** Warning - bad CRC, using default environment In: serial Out: serial Err: serial Net: mii0 Warning: failed to set MAC address Hit any key to stop autoboot: 0 sun7i# setenv ethaddr 00:11:22:33:44:a3 sun7i# setenv autoload no sun7i# dhcp Waiting for PHY auto negotiation to complete.. done ENET Speed is 1000 Mbps - FULL duplex connection BOOTP broadcast 1 BOOTP broadcast 2 DHCP client bound to address 192.168.1.218 sun7i# setenv serverip 192.168.1.1 sun7i# tftp 0x40008000 192.168.1.1:cubie/zImage Using mii0 device TFTP from server 192.168.1.1; our IP address is 192.168.1.218 Filename 'cubie/zImage'. Load address: 0x40008000 Loading: ################################################################# ######################################################### 2.7 MiB/s done Bytes transferred = 1779480 (1b2718 hex) sun7i# tftp 0x42000000 192.168.1.1:cubie/buildroot.cpio.gz Using mii0 device TFTP from server 192.168.1.1; our IP address is 192.168.1.218 Filename 'cubie/buildroot.cpio.gz'. Load address: 0x42000000 Loading: ############################################ 2.7 MiB/s done Bytes transferred = 642602 (9ce2a hex) sun7i# tftp 0x41000000 192.168.1.1:cubie/sun7i-a20-cubietruck.dtb Using mii0 device TFTP from server 192.168.1.1; our IP address is 192.168.1.218 Filename 'cubie/sun7i-a20-cubietruck.dtb'. Load address: 0x41000000 Loading: # 2 MiB/s done Bytes transferred = 12304 (3010 hex) sun7i# setenv bootargs console=ttyS0,115200 debug earlyprintk rw root=/dev/ram0 rw sun7i# bootz 0x40008000 - 0x41000000 Kernel image @ 0x40008000 [ 0x000000 - 0x1b2718 ] ## Flattened Device Tree blob at 41000000 Booting using the fdt blob at 0x41000000 Loading Device Tree to 40ff9000, end 40fff00f ... OK Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 3.14.0-rc5-00287-gca62eec (buildsl...@vps-1147942-19228.manage.myhosting.com) (gcc version 4.7.1 (Ubuntu/Linaro 4.7.1-5ubuntu1~ppa1) ) #1 SMP Sat Mar 8 20:49:39 EST 2014 [ 0.000000] CPU: ARMv7 Processor [410fc074] revision 4 (ARMv7), cr=10c5387d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] Machine model: Cubietech Cubietruck [ 0.000000] Memory policy: Data cache writealloc [ 0.000000] On node 0 totalpages: 524288 [ 0.000000] free_area_init_node: node 0, pgdat c0351040, node_mem_map ee7fb000 [ 0.000000] Normal zone: 1520 pages used for memmap [ 0.000000] Normal zone: 0 pages reserved [ 0.000000] Normal zone: 194560 pages, LIFO batch:31 [ 0.000000] HighMem zone: 2576 pages used for memmap [ 0.000000] HighMem zone: 329728 pages, LIFO batch:31 [ 0.000000] PERCPU: Embedded 5 pages/cpu @ee7db000 s6592 r0 d13888 u32768 [ 0.000000] pcpu-alloc: s6592 r0 d13888 u32768 alloc=8*4096 [ 0.000000] pcpu-alloc: [0] 0 [0] 1 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 522768 [ 0.000000] Kernel command line: console=ttyS0,115200 debug earlyprintk rw root=/dev/ram0 rw [ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes) [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) [ 0.000000] Memory: 2076248K/2097152K available (2544K kernel code, 150K rwdata, 496K rodata, 170K init, 216K bss, 20904K reserved, 1318912K highmem) [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) [ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB) [ 0.000000] vmalloc : 0xf0000000 - 0xff000000 ( 240 MB) [ 0.000000] lowmem : 0xc0000000 - 0xef800000 ( 760 MB) [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) [ 0.000000] .text : 0xc0008000 - 0xc03004fc (3042 kB) [ 0.000000] .init : 0xc0301000 - 0xc032b9c0 ( 171 kB) [ 0.000000] .data : 0xc032c000 - 0xc0351b00 ( 151 kB) [ 0.000000] .bss : 0xc0351b08 - 0xc0387b0c ( 217 kB) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 0.000000] NR_IRQS:16 nr_irqs:16 16 [ 0.000026] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956969942ns [ 0.000156] sched_clock: 32 bits at 160MHz, resolution 6ns, wraps every 26843545593ns [ 0.000309] Console: colour dummy device 80x30 [ 0.000343] Calibrating delay loop... 1915.28 BogoMIPS (lpj=9576448) [ 0.060072] pid_max: default: 32768 minimum: 301 [ 0.060248] Mount-cache hash table entries: 512 [ 0.060876] CPU: Testing write buffer coherency: ok [ 0.061163] /cpus/cpu@0 missing clock-frequency property [ 0.061177] /cpus/cpu@1 missing clock-frequency property [ 0.061189] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.061221] Setting up static identity map for 0x40269d20 - 0x40269d78 [ 0.062171] CPU1: failed to boot: -38 [ 0.062200] Brought up 1 CPUs [ 0.062206] SMP: Total of 1 processors activated. [ 0.062212] CPU: All CPU(s) started in SVC mode. [ 0.062798] devtmpfs: initialized [ 0.066438] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 4 [ 0.066644] pinctrl core: initialized pinctrl subsystem [ 0.066838] regulator-dummy: no parameters [ 0.067050] NET: Registered protocol family 16 [ 0.067303] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 0.071596] bio: create slab <bio-0> at 0 [ 0.072828] Switched to clocksource timer [ 0.079137] NET: Registered protocol family 2 [ 0.079646] TCP established hash table entries: 8192 (order: 3, 32768 bytes) [ 0.079723] TCP bind hash table entries: 8192 (order: 4, 65536 bytes) [ 0.079844] TCP: Hash tables configured (established 8192 bind 8192) [ 0.079920] TCP: reno registered [ 0.079935] UDP hash table entries: 512 (order: 2, 16384 bytes) [ 0.079989] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes) [ 0.080243] NET: Registered protocol family 1 [ 0.080637] RPC: Registered named UNIX socket transport module. [ 0.080648] RPC: Registered udp transport module. [ 0.080655] RPC: Registered tcp transport module. [ 0.080660] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.081559] futex hash table entries: 512 (order: 3, 32768 bytes) [ 0.081955] Clockevents: could not switch to one-shot mode: dummy_timer is not functional. [ 0.081973] Could not switch to high resolution mode on CPU 0 [ 0.082169] bounce pool size: 64 pages [ 0.089719] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253) [ 0.089736] io scheduler noop registered [ 0.089743] io scheduler deadline registered [ 0.089919] io scheduler cfq registered (default) [ 0.091688] sunxi-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver [ 0.132262] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled [ 0.154795] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 33, base_baud = 1500000) is a U6_16550A [ 0.634967] console [ttyS0] enabled [ 0.639260] mousedev: PS/2 mouse device common for all mice [ 0.645127] i2c /dev entries driver [ 0.650160] sunxi-wdt 1c20c90.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0) [ 0.659334] TCP: cubic registered [ 0.662688] NET: Registered protocol family 17 [ 0.667215] Registering SWP/SWPB emulation handler [ 0.672446] regulator-dummy: disabling [ 0.677235] List of all partitions: [ 0.680728] No filesystem could mount root, tried: [ 0.685665] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [ 0.693922] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.0-rc5-00287-gca62eec #1 [ 0.701509] [<c00133ac>] (unwind_backtrace) from [<c0010f80>] (show_stack+0x10/0x14) [ 0.709249] [<c0010f80>] (show_stack) from [<c0265a8c>] (dump_stack+0x70/0x8c) [ 0.716467] [<c0265a8c>] (dump_stack) from [<c02636f8>] (panic+0x90/0x1e8) [ 0.723340] [<c02636f8>] (panic) from [<c0302188>] (mount_block_root+0x1f4/0x230) [ 0.730819] [<c0302188>] (mount_block_root) from [<c03022b8>] (mount_root+0xf4/0x114) [ 0.738643] [<c03022b8>] (mount_root) from [<c0302404>] (prepare_namespace+0x12c/0x190) [ 0.746641] [<c0302404>] (prepare_namespace) from [<c0301db4>] (kernel_init_freeable+0x180/0x1c8) [ 0.755506] [<c0301db4>] (kernel_init_freeable) from [<c0262bd8>] (kernel_init+0x8/0xec) [ 0.763591] [<c0262bd8>] (kernel_init) from [<c000e278>] (ret_from_fork+0x14/0x3c) I use this buildroot ramdisk on many other platforms, so it should work on the cubie. Anyone else ran into this? Cheers, -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.