Hi Jon Just read your fix for getting CPU 1 online .....hoping I could bounce a couple of questions off you?
How did you "switch uboot" ..... did you "flash" a new version over writing the factory version that shipped with your board? I'm using an Olimex A20-SOM eval kit and building from mainline kernel. So far things are working, but I have 3 issues I'm struggling with: 1. Update my uboot using ( https://github.com/jwrdegoede/u-boot-sunxi ) ....thank you Hans!! 2. CPU 1 fails to start ( guess this is caused by uboot) 3. Bring up the network (eth0 is there, I can configure it using the ip command but I can't bring it up) Any comments or hints would be a great help, thanks!! ..... Network: # ip link set eth0 address 02:01:02:03:04:08 # ip address add 192.100.1.76/24 dev eth0 # ip link set dev eth0 up [ 1056.098099] stmmac_hw_setup: DMA engine initialization failed [ 1056.103860] stmmac_open: Hw setup failed ip: SIOCSIFFLAGS: Device or resource busy # Kernel Boot, CPU 1 failed to start: # reboot # [ 1351.515234] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null) The system is going down NOW! Sent SIGTERM to all processes Sent SIGKILL to all processes[ 1353.533735] reboot: Restarting system [ 1354.537520] Reboot failed -- System halted U-Boot SPL 2013.10-rc2-08400-g8a4621c (Oct 29 2013 - 15:24:26) Board: A20-OLinuXino_MICRO DRAM: 1024 MiB CPU: 960000000Hz, AXI/AHB/APB: 3/2/2 spl: not an uImage at 1600 U-Boot 2013.10-rc2-08400-g8a4621c (Oct 29 2013 - 15:24:26) Allwinner Technology CPU: Allwinner A20 (SUN7I) Board: A20-OLinuXino_MICRO I2C: ready DRAM: 1 GiB MMC: SUNXI SD/MMC: 0 *** Warning - bad CRC, using default environment In: serial Out: serial Err: serial Net: emac Hit any key to stop autoboot: 0 reading uEnv.txt ** Unable to read file uEnv.txt ** Failed to mount ext2 filesystem... ** Unrecognized filesystem type ** Failed to mount ext2 filesystem... ** Unrecognized filesystem type ** reading boot.scr 241 bytes read in 6 ms (39.1 KiB/s) Jumping to boot.scr ## Executing script at 44000000 reading script.bin 52608 bytes read in 5 ms (10 MiB/s) reading uImage 2607593 bytes read in 116 ms (21.4 MiB/s) ## Booting kernel from Legacy Image at 48000000 ... Image Name: Linux-3.16.0-rc2 Created: 2014-06-22 11:36:24 UTC Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 2607529 Bytes = 2.5 MiB Load Address: 40008000 Entry Point: 40008000 Verifying Checksum ... OK Loading Kernel Image ... OK Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 3.16.0-rc2 ([email protected]) (gcc version 4.9.0 (Buildroot 2014.08-git-00381-g27a1f09) ) #1 SMP Sun Jun 22 12:12:33 BST 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: Olimex A20-Olinuxino Micro [ 0.000000] Memory policy: Data cache writealloc [ 0.000000] PERCPU: Embedded 5 pages/cpu @eefd4000 s6848 r0 d13632 u32768 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260624 [ 0.000000] Kernel command line: console=ttyS0,115200 root=/dev/mmcblk0p2 rootwait panic=10 [ 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: 1034260K/1048576K available (3765K kernel code, 181K rwdata, 744K rodata, 222K init, 231K bss, 14316K reserved, 270336K highmem) [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) [ 0.000000] fixmap : 0xffc00000 - 0xffe00000 (2048 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 - 0xc046fa34 (4511 kB) [ 0.000000] .init : 0xc0470000 - 0xc04a7ac0 ( 223 kB) [ 0.000000] .data : 0xc04a8000 - 0xc04d57c0 ( 182 kB) [ 0.000000] .bss : 0xc04d57c8 - 0xc050f62c ( 232 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 [ 0.000000] Architected cp15 timer(s) running at 24.00MHz (virt). [ 0.000011] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 2863311519744ns [ 0.000019] Switching to timer-based delay loop [ 0.000289] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956969942ns [ 0.000412] sched_clock: 32 bits at 160MHz, resolution 6ns, wraps every 26843545593ns [ 0.000606] Console: colour dummy device 80x30 [ 0.000640] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000) [ 0.000654] pid_max: default: 32768 minimum: 301 [ 0.000775] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.000787] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.001363] CPU: Testing write buffer coherency: ok [ 0.001669] /cpus/cpu@0 missing clock-frequency property [ 0.001688] /cpus/cpu@1 missing clock-frequency property [ 0.001701] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.001765] Setting up static identity map for 0x40394f08 - 0x40394f60 [ 0.002919] CPU1: failed to boot: -38 [ 0.002960] Brought up 1 CPUs [ 0.002967] SMP: Total of 1 processors activated. [ 0.002974] CPU: All CPU(s) started in SVC mode. [ 0.003546] devtmpfs: initialized On Thursday, 12 June 2014 15:18:04 UTC+1, Jon Smirl wrote: > > Any ideas why the second CPU isn't booting? > > root@linaro-developer:/etc# dmesg | grep -i CPU > [ 0.000000] Booting Linux on physical CPU 0x0 > [ 0.000000] Initializing cgroup subsys cpuset > [ 0.000000] Initializing cgroup subsys cpu > [ 0.000000] Initializing cgroup subsys cpuacct > [ 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] PERCPU: Embedded 9 pages/cpu @ee7cc000 s12736 r8192 d15936 > u36864 > [ 0.000000] pcpu-alloc: s12736 r8192 d15936 u36864 alloc=9*4096 > [ 0.000000] pcpu-alloc: [0] 0 [0] 1 > [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 > [ 0.002235] CPU: Testing write buffer coherency: ok > [ 0.031818] /cpus/cpu@0 missing clock-frequency property > [ 0.031846] /cpus/cpu@1 missing clock-frequency property > [ 0.031858] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 > [ 0.038881] CPU1: failed to boot: -38 > [ 0.038926] Brought up 1 CPUs > [ 0.038941] CPU: All CPU(s) started in SVC mode. > [ 1.631337] ThumbEE CPU extension supported. > [ 15.298527] CPU1: failed to boot: -38 > root@linaro-developer:/etc# > > > > -- > Jon Smirl > [email protected] <javascript:> > -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. 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