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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH RFC 0/8] xen/arm: very initial cubieboard2 support.
2013/9/10 Ian Campbell <Ian.Campbell@xxxxxxxxxx>: > The following patches are a very early set of cubieboard patches, based > on latest staging, eb786f709249666e1f7364706f94be1a6c4e04da > > Several are not to be applied because they can be done better using > infrastructure from Julien's "Allow Xen to boot with a raw Device Tree" > patch. They are included for completeness. > > With this I can boot up until dom0 panics due to lack of a root > filesystem. This is because upstream Linux currently lacks any useful > storage drivers (SATA, USB host, MMC). Hopefully this will resolve > itself soon > > The bulk of this is the hacking around of the ns16550 driver to support > ARM platforms and DTB. > > It's currently a bit of a faff to get going. Hopefully the following is > helpful: > > u-boot > ====== > > https://github.com/linux-sunxi/u-boot-sunxi.git linux-sunxi/sunxi > commit e94cff93c273b0825bea135e0f559f5580156fa6 > > Plus git://git.linaro.org/people/aprzywara/u-boot.git hypmode_v4 > commit 5068b337518617586f2e51b6d616c54dbec4fa62 > > Plus patches for hypmode on sunxi and to initialise CNTFRQ. > > All of which can be found in > git://xenbits.xen.org/people/ianc/u-boot.git devel/cubieboard2 > > Built with: > make Cubieboard2_FEL CROSS_COMPILE=arm-linux-gnueabihf- > > Linux > ===== > > Linux tree: > https://github.com/mripard/linux.git sunxi/dt-for-3.12 > commit 82abe5294aeadc42508c7944f3a9aec0eece214c > > Using in tree DTS arch/arm/boot/dts/sun7i-a20-cubieboard2.dts with the > following patch. > > Build Image and dtbs in the usual way > > Xen > === > > Build in the usual way. > > Xen can use CONFIG_EARLY_PRINTK=sun7i. > > Booting > ======= > > I am using FEL boot per http://linux-sunxi.org/FEL/USBBoot and > http://linux-sunxi.org/FEL using the fel-sdboot.sunxi on MMC > mechanism. > > linux-sunxi tools from git://github.com/linux-sunxi/sunxi-tools.git > commit b398456630b310dbf31c7515e8d6af37903c4975 and: > > ./usb-boot ~/devel/u-boot.git/spl/u-boot-spl.bin > ~/devel/u-boot.git/u-boot.bin \ > bootxen.scr ~/devel/xen.git/xen/xen \ > ~/devel/linux.git/arch/arm/boot/dts/sun7i-a20-cubieboard2.dtb > ~/devel/linux.git/arch/arm/boot/zImage > > bootxen.scr is: > $ cat bootxen > setenv bootargs dtuart=serial0 earlyprint loglvl=all conswitch=x > bootz 0x44000000 - 0x43000000 > $ mkimage -T script -A arm -d bootxen bootxen.scr > > DTS patch > ========= > > > diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts > b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts > 31b76f0..6c0c387 100644 > --- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts > +++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts > @@ -18,6 +18,21 @@ > model = "Cubietech Cubieboard2"; > compatible = "cubietech,cubieboard2", "allwinner,sun7i-a20"; > > + chosen { > + #address-cells = <1>; > + #size-cells = <1>; > + > + module@0 { > + compatible = "xen,linux-zimage", > "xen,multiboot-module"; > + bootargs = "console=hvc0 earlyprintk "; > + reg = <0x50000000 0x800000>; > + }; > + }; > + > + aliases { > + serial0 = &uart0; > + }; > + > soc@01c00000 { > pinctrl@01c20800 { > led_pins_cubieboard2: led_pins@0 { > diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi > b/arch/arm/boot/dts/sun7i-a20.dtsi > index f4e4524..bfc5dc2 100644 > --- a/arch/arm/boot/dts/sun7i-a20.dtsi > +++ b/arch/arm/boot/dts/sun7i-a20.dtsi > @@ -26,11 +26,6 @@ > reg = <0>; > }; > > - cpu@1 { > - compatible = "arm,cortex-a7"; > - device_type = "cpu"; > - reg = <1>; > - }; > }; > > memory { > @@ -55,6 +55,14 @@ > }; > }; > > + timer { > + compatible = "arm,armv7-timer"; > + interrupts = <1 13 0xf08>, > + <1 14 0xf08>, > + <1 11 0xf08>, > + <1 10 0xf08>; > + }; > + > soc@01c00000 { > compatible = "simple-bus"; > #address-cells = <1>; > @@ -94,17 +102,6 @@ > }; > }; > > - timer@01c20c00 { > - compatible = "allwinner,sun4i-timer"; > - reg = <0x01c20c00 0x90>; > - interrupts = <0 22 1>, > - <0 23 1>, > - <0 24 1>, > - <0 25 1>, > - <0 67 1>, > - <0 68 1>; > - clocks = <&osc24M>; > - }; > > wdt: watchdog@01c20c90 { > compatible = "allwinner,sun4i-wdt"; > > Thanks Ian. I can boot dom0 until rootfs panic as yours. So I tried booting dom0 with built-in initramfs, but it's failed. I am not sure whether the problem is the initramfs or not. Starting kernel ... - UART enabled - - CPU 00000000 booting - - Machine ID 000010bb - - Started in Hyp mode - - Zero BSS - - Setting up control registers - - Turning on paging - - Ready - -DTB R8 402d7700 - - PADDR R9 40200000 - - phys-offset R10 40000000 - RAM: 0000000040000000 - 00000000bfffffff MODULE[1]: 0000000060000000 - 0000000060800000 Placing Xen at 0x00000000bfe00000-0x00000000c0000000 Xen heap: 65536 pages Dom heap: 458752 pages Looking for UART console serial0 ns16550_uart_dt_init ns16550 at 1c28000-1c28400 console done? UART mapped at 10007000 divisor 0 __ __ _ _ _ _ _ _ _ \ \/ /___ _ __ | || | | || | _ _ _ __ ___| |_ __ _| |__ | | ___ \ // _ \ '_ \ | || |_| || |_ __| | | | '_ \/ __| __/ _` | '_ \| |/ _ \ / \ __/ | | | |__ _|__ _|__| |_| | | | \__ \ || (_| | |_) | | __/ /_/\_\___|_| |_| |_|(_) |_| \__,_|_| |_|___/\__\__,_|_.__/|_|\___| (XEN) Xen version 4.4-unstable (joshzhao@) (arm-unknown-linux-gnueabi-gcc (GCC) 4.6.3) debug=y Wed Sep 11 09:40:18 CST 2013 (XEN) Latest ChangeSet: Mon Aug 26 12:40:44 2013 +0200 git:8a7769b-dirty (XEN) Console output is synchronous. (XEN) Processor: "ARM Limited", variant: 0x0, part 0xc07, rev 0x4 (XEN) 32-bit Execution: (XEN) Processor Features: 00001131:00011011 (XEN) Instruction Sets: AArch32 Thumb Thumb-2 ThumbEE Jazelle (XEN) Extensions: GenericTimer Security (XEN) Debug Features: 02010555 (XEN) Auxiliary Features: 00000000 (XEN) Memory Model Features: 10101105 40000000 01240000 02102211 (XEN) ISA Features: 02101110 13112111 21232041 11112131 10011142 00000000 (XEN) Platform: ALLWINNER SUN7I-A20 (XEN) Generic Timer IRQ: phys=55 hyp=57 virt=56 (XEN) clock-frequency res:0 (XEN) Using generic timer at 24000 KHz boot_count:0000000027b08aa2 (XEN) GIC initialization: (XEN) gic_dist_addr=0000000001c81000 (XEN) gic_cpu_addr=0000000001c82000 (XEN) gic_hyp_addr=0000000001c84000 (XEN) gic_vcpu_addr=0000000001c86000 (XEN) gic_maintenance_irq=25 (XEN) GIC: 160 lines, 1 cpu, secure (IID 0100143b). (XEN) Waiting for 0 other CPUs to be ready (XEN) Using scheduler: SMP Credit Scheduler (credit) (XEN) Allocated console ring of 16 KiB. (XEN) VFP implementer 0x41 architecture 2 part 0x30 variant 0x7 rev 0x4 (XEN) Brought up 1 CPUs (XEN) *** LOADING DOMAIN 0 *** (XEN) Populate P2M 0x90000000->0xa0000000 (1:1 mapping for dom0) (XEN) Device-tree contains "xen,xen" node. Ignoring. (XEN) Loading kernel from boot module 1 (XEN) Loading zImage from 0000000060000000 to 0000000090008000-0000000090534900 (XEN) Loading dom0 DTB to 0x000000009fe00000-0x000000009fe0105f (XEN) Std. Loglevel: All (XEN) Guest Loglevel: All (XEN) ********************************************** (XEN) ******* WARNING: CONSOLE OUTPUT IS SYNCHRONOUS (XEN) ******* This option is intended to aid debugging of Xen by ensuring (XEN) ******* that all output is synchronously delivered on the serial line. (XEN) ******* However it can introduce SIGNIFICANT latencies and affect (XEN) ******* timekeeping. It is NOT recommended for production use! (XEN) ********************************************** (XEN) 3... 2... 1... (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen) (XEN) Freed 216kB init memory. [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 3.11.0-rc4-01080-gad22d2d-dirty (joshzhao@joshzhao-ThinkCentre-M58p) (gcc version 4.6.3 (GCC) ) #2 SMP Tue Sep 10 16:00:01 CST 2013 [ 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: Allwinner A1X (Device Tree), model: Cubietech Cubieboard2 [ 0.000000] debug: ignoring loglevel setting. [ 0.000000] Memory policy: ECC disabled, Data cache writealloc [ 0.000000] On node 0 totalpages: 65536 [ 0.000000] free_area_init_node: node 0, pgdat c0915300, node_mem_map c0960000 [ 0.000000] DMA zone: 512 pages used for memmap [ 0.000000] DMA zone: 0 pages reserved [ 0.000000] DMA zone: 65536 pages, LIFO batch:15 [ 0.000000] PERCPU: Embedded 5 pages/cpu @c0b65000 s7808 r0 d12672 u32768 [ 0.000000] pcpu-alloc: s7808 r0 d12672 u32768 alloc=8*4096 [ 0.000000] pcpu-alloc: [0] 0 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 65024 [ 0.000000] Kernel command line: console=hvc0,115200n8 init=/init debug ignore_loglevel rw earlyprintk=xen [ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes) [ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) [ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) [ 0.000000] Memory: 250240K/262144K available (5052K kernel code, 602K rwdata, 1444K rodata, 2171K init, 290K bss, 11904K reserved, 0K highmem) [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) [ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB) [ 0.000000] vmalloc : 0xd0800000 - 0xff000000 ( 744 MB) [ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB) [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) [ 0.000000] .text : 0xc0008000 - 0xc06602e4 (6497 kB) [ 0.000000] .init : 0xc0661000 - 0xc087fe80 (2172 kB) [ 0.000000] .data : 0xc0880000 - 0xc0916a40 ( 603 kB) [ 0.000000] .bss : 0xc0916a40 - 0xc095f3dc ( 291 kB) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1. [ 0.000000] NR_IRQS:16 nr_irqs:16 16 [ 0.000000] Architected local timer running at 24.00MHz (virt). [ 0.000000] arch_timer: can't register interrupt 56 (-22) [ 0.000000] Switching to timer-based delay loop [ 0.000000] sched_clock: ARM arch timer >56 bits at 24000kHz, resolution 41ns [ 0.000000] sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 4294967286ms [ 0.000000] Console: colour dummy device 80x30 [ 3.699313] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000) [ 3.699327] pid_max: default: 32768 minimum: 301 [ 3.699497] Mount-cache hash table entries: 512 [ 3.700917] CPU: Testing write buffer coherency: ok [ 3.701214] /cpus/cpu@0 missing clock-frequency property [ 3.701236] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 3.701271] Setting up static identity map for 0xc04c7830 - 0xc04c78c8 [ 3.701330] unable to find compatible sirf rstc node in dtb [ 3.701896] Brought up 1 CPUs [ 3.701909] SMP: Total of 1 processors activated (48.00 BogoMIPS). [ 3.701916] CPU: All CPU(s) started in SVC mode. [ 3.702576] devtmpfs: initialized [ 3.706351] Xen 4.4 support found, events_irq=31 gnttab_frame_pfn=b0000 [ 3.706437] xen:grant_table: Grant tables using version 1 layout [ 3.706501] Grant table initialized [ 3.706737] pinctrl core: initialized pinctrl subsystem [ 3.707125] regulator-dummy: no parameters [ 3.707449] NET: Registered protocol family 16 [ 3.707786] Xen: initializing cpu0 [ 3.708099] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 3.708234] unable to find compatible sirf pwrc node in dtb [ 3.710859] Serial: AMBA PL011 UART driver [ 3.715594] bio: create slab <bio-0> at 0 [ 3.716527] edma-dma-engine edma-dma-engine.0: Can't allocate PaRAM dummy slot [ 3.716554] edma-dma-engine: probe of edma-dma-engine.0 failed with error -5 [ 3.716661] xen:balloon: Initialising balloon driver [ 3.717367] vgaarb: loaded [ 3.717675] SCSI subsystem initialized [ 3.717852] libata version 3.00 loaded. [ 3.718081] usbcore: registered new interface driver usbfs [ 3.718130] usbcore: registered new interface driver hub [ 3.718233] usbcore: registered new device driver usb [ 3.718602] pps_core: LinuxPPS API ver. 1 registered [ 3.718611] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@xxxxxxxx> [ 3.718632] PTP clock support registered [ 3.718664] EDAC MC: Ver: 3.0.0 [ 3.719670] Switched to clocksource arch_sys_counter [ 3.727609] NET: Registered protocol family 2 [ 3.728177] TCP established hash table entries: 2048 (order: 2, 16384 bytes) [ 3.728223] TCP bind hash table entries: 2048 (order: 2, 16384 bytes) [ 3.728259] TCP: Hash tables configured (established 2048 bind 2048) [ 3.728327] TCP: reno registered [ 3.728342] UDP hash table entries: 256 (order: 1, 8192 bytes) [ 3.728375] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes) [ 3.728599] NET: Registered protocol family 1 [ 3.729001] RPC: Registered named UNIX socket transport module. [ 3.729014] RPC: Registered udp transport module. [ 3.729019] RPC: Registered tcp transport module. [ 3.729025] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 3.729039] PCI: CLS 0 bytes, default 64 [ 3.852329] NFS: Registering the id_resolver key type [ 3.852405] Key type id_resolver registered [ 3.852412] Key type id_legacy registered [ 3.852660] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251) [ 3.852670] io scheduler noop registered [ 3.852677] io scheduler deadline registered [ 3.852830] io scheduler cfq registered (default) [ 3.854795] sunxi-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver [ 3.856031] xen:xen_evtchn: Event-channel device installed [ 4.458268] console [hvc0] enabled [ 4.461714] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled [ 4.489650] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 33) is a U6_16550A [ 4.496908] Serial: IMX driver [ 4.500283] serial: Freescale lpuart driver [ 4.504513] [drm] Initialized drm 1.1.0 20060810 [ 4.510010] xen_netfront: Initialising Xen virtual ethernet driver [ 4.516291] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 4.522633] ehci-pci: EHCI PCI platform driver [ 4.527115] ehci-platform: EHCI generic platform driver [ 4.532331] ehci-omap: OMAP-EHCI Host Controller driver [ 4.537513] ehci-orion: EHCI orion driver [ 4.541518] SPEAr-ehci: EHCI SPEAr driver [ 4.545525] tegra-ehci: Tegra EHCI driver [ 4.549747] usbcore: registered new interface driver usb-storage [ 4.556422] mousedev: PS/2 mouse device common for all mice [ 4.562533] sdhci: Secure Digital Host Controller Interface driver [ 4.568534] sdhci: Copyright(c) Pierre Ossman [ 4.573052] sdhci-pltfm: SDHCI platform and OF driver helper [ 4.579004] usbcore: registered new interface driver usbhid [ 4.584398] usbhid: USB HID core driver [ 4.588488] TCP: cubic registered [ 4.592223] NET: Registered protocol family 10 [ 4.597186] sit: IPv6 over IPv4 tunneling driver [ 4.602338] Key type dns_resolver registered [ 4.606577] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 4 [ 4.614075] Registering SWP/SWPB emulation handler [ 4.619663] drivers/rtc/hctosys.c: unable to open rtc device (rtc0) [ 4.628188] Freeing unused kernel memory: 2168K (c0661000 - c087f000) [ 4.636010] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00007f00 [ 4.636010] [ 4.645015] CPU: 0 PID: 1 Comm: init Not tainted 3.11.0-rc4-01080-gad22d2d-dirty #2 [ 4.652633] [<c001598c>] (unwind_backtrace+0x0/0xf8) from [<c0011900>] (show_stack+0x10/0x14) [ 4.661054] [<c0011900>] (show_stack+0x10/0x14) from [<c04c33d4>] (dump_stack+0x6c/0x88) [ 4.669067] [<c04c33d4>] (dump_stack+0x6c/0x88) from [<c04c0e74>] (panic+0x8c/0x1e4) [ 4.676741] [<c04c0e74>] (panic+0x8c/0x1e4) from [<c00411fc>] (do_exit+0x7bc/0x8c8) [ 4.684329] [<c00411fc>] (do_exit+0x7bc/0x8c8) from [<c0041370>] (do_group_exit+0x3c/0xc4) [ 4.692516] [<c0041370>] (do_group_exit+0x3c/0xc4) from [<c0041408>] (__wake_up_parent+0x0/0x18) _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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