I am using the defconfig from linux kernel tree and for CCSR in u-boot its F8000000 so the same i am using in device tree... so my question is - is it unable to parse device tree ? or in device tree some thing need to modify in device tree or in kernel source... please give some light on this...
Thanks & Regards Ashish Khetan On Fri, Dec 27, 2013 at 4:21 AM, Sri Ram Vemulpali <sri.ram.gm...@gmail.com>wrote: > Why do not you use deconfig from linux kernel tree. Modify only base > address of CCSR (soc node) for child nodes of root in device tree. > arch/powerpc/boot/dts/mpc8641_hpcn.dts. > > Sri > > > On Thu, Dec 26, 2013 at 3:48 AM, Ashish Khetan > <curieux.khe...@gmail.com>wrote: > >> i tried to dig more inside mpic_alloc fails. the function >> of_find_matching_node calls inside from mpic_alloc() should return the node >> at which pic is connected but it returns NULL. but why? In device tree i am >> using the following.. may be it will helpful. >> /dts-v1/; >> >> / { >> model = "MPC8641HPCN"; >> compatible = "fsl,mpc8641hpcn"; >> #address-cells = <0x1>; >> #size-cells = <0x1>; >> >> aliases { >> ethernet0 = "/soc8641@f8000000/ethernet@24000"; >> ethernet1 = "/soc8641@f8000000/ethernet@25000"; >> ethernet2 = "/soc8641@f8000000/ethernet@26000"; >> ethernet3 = "/soc8641@f8000000/ethernet@27000"; >> serial0 = "/soc8641@f8000000/serial@4500"; >> }; >> >> cpus { >> #address-cells = <0x1>; >> #size-cells = <0x0>; >> >> PowerPC,8641@0 { >> device_type = "cpu"; >> reg = <0x0>; >> d-cache-line-size = <0x20>; >> i-cache-line-size = <0x20>; >> d-cache-size = <0x8000>; >> i-cache-size = <0x8000>; >> timebase-frequency = <0x0>; >> bus-frequency = <0x0>; >> clock-frequency = <0x0>; >> }; >> }; >> >> memory { >> device_type = "memory"; >> reg = <0x0 0x20000000>; >> }; >> >> localbus@f8005000 { >> #address-cells = <0x2>; >> #size-cells = <0x1>; >> compatible = "fsl,mpc8641-localbus", "simple-bus"; >> reg = <0xf8005000 0x1000>; >> interrupts = <0x13 0x2>; >> interrupt-parent = <0x1>; >> ranges = <0x0 0x0 0xff000000 0x1000000>; >> >> flash@0,0 { >> compatible = "cfi-flash"; >> reg = <0x0 0x0 0x800000>; >> bank-width = <0x2>; >> device-width = <0x2>; >> #address-cells = <0x1>; >> #size-cells = <0x1>; >> }; >> }; >> >> soc8641@f8000000 { >> #address-cells = <0x1>; >> #size-cells = <0x1>; >> device_type = "soc"; >> compatible = "simple-bus"; >> ranges = <0x0 0xf8000000 0x100000>; >> bus-frequency = <0x0>; >> >> mcm-law@0 { >> compatible = "fsl,mcm-law"; >> reg = <0x0 0x1000>; >> fsl,num-laws = <0xa>; >> }; >> >> mcm@1000 { >> compatible = "fsl,mpc8641-mcm", "fsl,mcm"; >> reg = <0x1000 0x1000>; >> interrupts = <0x11 0x2>; >> interrupt-parent = <0x1>; >> }; >> >> dma@21300 { >> #address-cells = <0x1>; >> #size-cells = <0x1>; >> compatible = "fsl,mpc8641-dma", "fsl,eloplus-dma"; >> reg = <0x21300 0x4>; >> ranges = <0x0 0x21100 0x200>; >> cell-index = <0x0>; >> >> dma-channel@0 { >> compatible = "fsl,mpc8641-dma-channel", >> "fsl,eloplus-dma-channel"; >> reg = <0x0 0x80>; >> cell-index = <0x0>; >> interrupt-parent = <0x1>; >> interrupts = <0x14 0x2>; >> }; >> >> dma-channel@80 { >> compatible = "fsl,mpc8641-dma-channel", >> "fsl,eloplus-dma-channel"; >> reg = <0x80 0x80>; >> cell-index = <0x1>; >> interrupt-parent = <0x1>; >> interrupts = <0x15 0x2>; >> }; >> >> dma-channel@100 { >> compatible = "fsl,mpc8641-dma-channel", >> "fsl,eloplus-dma-channel"; >> reg = <0x100 0x80>; >> cell-index = <0x2>; >> interrupt-parent = <0x1>; >> interrupts = <0x16 0x2>; >> }; >> >> dma-channel@180 { >> compatible = "fsl,mpc8641-dma-channel", >> "fsl,eloplus-dma-channel"; >> reg = <0x180 0x80>; >> cell-index = <0x3>; >> interrupt-parent = <0x1>; >> interrupts = <0x17 0x2>; >> }; >> }; >> >> ethernet@24000 { >> #address-cells = <0x1>; >> #size-cells = <0x1>; >> cell-index = <0x0>; >> device_type = "network"; >> model = "TSEC"; >> compatible = "gianfar"; >> reg = <0x24000 0x1000>; >> ranges = <0x0 0x24000 0x1000>; >> local-mac-address = [00 00 00 00 00 00]; >> interrupts = <0x1d 0x2 0x1e 0x2 0x22 0x2>; >> interrupt-parent = <0x1>; >> tbi-handle = <0x2>; >> phy-handle = <0x3>; >> phy-connection-type = "rgmii-id"; >> >> mdio@520 { >> #address-cells = <0x1>; >> #size-cells = <0x0>; >> compatible = "fsl,gianfar-mdio"; >> reg = <0x520 0x20>; >> >> ethernet-phy@0 { >> interrupt-parent = <0x1>; >> interrupts = <0xa 0x1>; >> reg = <0x0>; >> device_type = "ethernet-phy"; >> linux,phandle = <0x3>; >> }; >> >> ethernet-phy@1 { >> interrupt-parent = <0x1>; >> interrupts = <0xa 0x1>; >> reg = <0x1>; >> device_type = "ethernet-phy"; >> linux,phandle = <0x5>; >> }; >> >> ethernet-phy@2 { >> interrupt-parent = <0x1>; >> interrupts = <0xa 0x1>; >> reg = <0x2>; >> device_type = "ethernet-phy"; >> linux,phandle = <0x7>; >> }; >> >> ethernet-phy@3 { >> interrupt-parent = <0x1>; >> interrupts = <0xa 0x1>; >> reg = <0x3>; >> device_type = "ethernet-phy"; >> linux,phandle = <0x9>; >> }; >> >> tbi-phy@11 { >> reg = <0x11>; >> device_type = "tbi-phy"; >> linux,phandle = <0x2>; >> }; >> }; >> }; >> >> ethernet@25000 { >> #address-cells = <0x1>; >> #size-cells = <0x1>; >> cell-index = <0x1>; >> device_type = "network"; >> model = "TSEC"; >> compatible = "gianfar"; >> reg = <0x25000 0x1000>; >> ranges = <0x0 0x25000 0x1000>; >> local-mac-address = [00 00 00 00 00 00]; >> interrupts = <0x23 0x2 0x24 0x2 0x28 0x2>; >> interrupt-parent = <0x1>; >> tbi-handle = <0x4>; >> phy-handle = <0x5>; >> phy-connection-type = "rgmii-id"; >> >> mdio@520 { >> #address-cells = <0x1>; >> #size-cells = <0x0>; >> compatible = "fsl,gianfar-tbi"; >> reg = <0x520 0x20>; >> >> tbi-phy@11 { >> reg = <0x11>; >> device_type = "tbi-phy"; >> linux,phandle = <0x4>; >> }; >> }; >> }; >> >> ethernet@26000 { >> #address-cells = <0x1>; >> #size-cells = <0x1>; >> cell-index = <0x2>; >> device_type = "network"; >> model = "TSEC"; >> compatible = "gianfar"; >> reg = <0x26000 0x1000>; >> ranges = <0x0 0x26000 0x1000>; >> local-mac-address = [00 00 00 00 00 00]; >> interrupts = <0x1f 0x2 0x20 0x2 0x21 0x2>; >> interrupt-parent = <0x1>; >> tbi-handle = <0x6>; >> phy-handle = <0x7>; >> phy-connection-type = "rgmii-id"; >> >> mdio@520 { >> #address-cells = <0x1>; >> #size-cells = <0x0>; >> compatible = "fsl,gianfar-tbi"; >> reg = <0x520 0x20>; >> >> tbi-phy@11 { >> reg = <0x11>; >> device_type = "tbi-phy"; >> linux,phandle = <0x6>; >> }; >> }; >> }; >> >> ethernet@27000 { >> #address-cells = <0x1>; >> #size-cells = <0x1>; >> cell-index = <0x3>; >> device_type = "network"; >> model = "TSEC"; >> compatible = "gianfar"; >> reg = <0x27000 0x1000>; >> ranges = <0x0 0x27000 0x1000>; >> local-mac-address = [00 00 00 00 00 00]; >> interrupts = <0x25 0x2 0x26 0x2 0x27 0x2>; >> interrupt-parent = <0x1>; >> tbi-handle = <0x8>; >> phy-handle = <0x9>; >> phy-connection-type = "rgmii-id"; >> >> mdio@520 { >> #address-cells = <0x1>; >> #size-cells = <0x0>; >> compatible = "fsl,gianfar-tbi"; >> reg = <0x520 0x20>; >> >> tbi-phy@11 { >> reg = <0x11>; >> device_type = "tbi-phy"; >> linux,phandle = <0x8>; >> }; >> }; >> }; >> >> serial@4500 { >> cell-index = <0x0>; >> device_type = "serial"; >> compatible = "ns16550"; >> reg = <0x4500 0x100>; >> clock-frequency = <0x0>; >> interrupts = <0x2a 0x2>; >> interrupt-parent = <0x1>; >> }; >> >> pic@40000 { >> interrupt-controller; >> #address-cells = <0x0>; >> #interrupt-cells = <0x2>; >> reg = <0x40000 0x40000>; >> compatible = "chrp,open-pic"; >> device_type = "open-pic"; >> linux,phandle = <0x1>; >> phandle = <0x1>; >> }; >> >> global-utilities@e0000 { >> compatible = "fsl,mpc8641-guts"; >> reg = <0xe0000 0x1000>; >> fsl,has-rstcr; >> }; >> }; >> >> chosen { >> linux,stdout-path = "/soc8641/serial0: serial@4500"; >> }; >> }; >> >> >> >> >> On Thu, Dec 26, 2013 at 2:37 PM, wyang <w90p...@gmail.com> wrote: >> >>> On 12/26/2013 01:09 PM, Ashish Khetan wrote: >>> >>> Hi, >>> I was trying to port Linux-3.12 for MPC8641 based custom designed board >>> for evaluation purpose. I have been facing a kernel bug at mpic >>> initialization. Is somebody have faced this kind of bugs or can give me any >>> pointer for further steps how to solve kernel bugs will be really helpful. >>> here is the snapshot for the bug that may be helpful to address the bug. >>> Using MPC86xx HPCN machine description >>> Total memory = 512MB; using 1024kB for hash table (at cff00000) >>> Linux version 3.12.0 (ashish@ashish-VirtualBox) (gcc version 4.7.2 >>> (GCC) ) #2 We >>> d Dec 25 16:04:36 IST 2013 >>> Found initrd at 0xde975000:0xdfec428a >>> bootconsole [udbg0] enabled >>> setup_arch: bootmem >>> mpc86xx_hpcn_setup_arch() >>> MPC86xx HPCN board from Freescale Semiconductor >>> arch: exit >>> Zone ranges: >>> DMA [mem 0x00000000-0x1fffffff] >>> Normal empty >>> HighMem empty >>> Movable zone start for each node >>> Early memory node ranges >>> node 0: [mem 0x00000000-0x1fffffff] >>> Built 1 zonelists in Zone order, mobility grouping on. Total pages: >>> 130048 >>> Kernel command line: root=/dev/ram0 rw rootfs console=ttyS0,115200 >>> PID hash table entries: 2048 (order: 1, 8192 bytes) >>> Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) >>> Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) >>> Sorting __ex_table... >>> Memory: 424980K/524288K available (4172K kernel code, 208K rwdata, 1304K >>> rodata, >>> 196K init, 149K bss, 99308K reserved, 0K highmem) >>> Kernel virtual memory layout: >>> * 0xfffcf000..0xfffff000 : fixmap >>> * 0xff800000..0xffc00000 : highmem PTEs >>> * 0xff7fe000..0xff800000 : early ioremap >>> * 0xe1000000..0xff7fe000 : vmalloc & ioremap >>> SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 >>> NR_IRQS:512 nr_irqs:512 16 >>> ------------[ cut here ]------------ >>> kernel BUG at arch/powerpc/platforms/86xx/pic.c:42! >>> >>> >>> It hints that mpic_alloc() fails. Maybe, you should spend some time >>> investigating why it fails. :-) >>> >>> Thanks >>> Wei >>> >>> Oops: Exception in kernel mode, sig: 5 [#1] >>> MPC86xx HPCN >>> Modules linked in: >>> CPU: 0 PID: 0 Comm: swapper Not tainted 3.12.0 #2 >>> task: c05903e0 ti: c05b4000 task.ti: c05b4000 >>> NIP: c0567438 LR: c0567430 CTR: c0567400 >>> REGS: c05b5ee0 TRAP: 0700 Not tainted (3.12.0) >>> MSR: 00021032 <ME,IR,DR,RI> CR: 24000042 XER: 20000000 >>> >>> GPR00: c0567430 c05b5f90 c05903e0 00000000 c04e4ff8 c051e588 0000008f >>> 00000002 >>> GPR08: c042789c 00000001 0000006f 00000000 22000048 bebffffd 11a7b4e5 >>> 200c8000 >>> GPR16: ffbeffff ffffffff 00000000 00000024 00000000 1fec56f8 1fec59a7 >>> 00000000 >>> GPR24: 00000000 1fff97e8 40000000 1ffcc6a0 c0bff080 c05c2490 c05c2628 >>> c0585b60 >>> NIP [c0567438] mpc86xx_init_irq+0x38/0x108 >>> LR [c0567430] mpc86xx_init_irq+0x30/0x108 >>> Call Trace: >>> [c05b5f90] [c0567430] mpc86xx_init_irq+0x30/0x108 (unreliable) >>> [c05b5fb0] [c0562784] init_IRQ+0x24/0x38 >>> [c05b5fc0] [c055fde4] start_kernel+0x1bc/0x2ec >>> [c05b5ff0] [00003444] 0x3444 >>> Instruction dump: >>> 3d00c04f 38800000 38a01002 38c00000 38e00100 39088f8c 38600000 90010024 >>> bfa10014 4bffec35 7c690034 5529d97e <0f090000> 3fa0c04f 4bfff391 38600000 >>> ---[ end trace 31fd0ba7d8756001 ]--- >>> >>> Kernel panic - not syncing: Attempted to kill the idle task! >>> Rebooting in 180 seconds.. >>> >>> >>> Thanks & Regards >>> Ashish Khetan >>> >>> >>> _______________________________________________ >>> Linuxppc-dev mailing >>> listLinuxppc-dev@lists.ozlabs.orghttps://lists.ozlabs.org/listinfo/linuxppc-dev >>> >>> >>> >> >> _______________________________________________ >> Kernelnewbies mailing list >> kernelnewb...@kernelnewbies.org >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> >> > > > -- > Regards, > Sri. >
_______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev