[PATCH v2 0/8] Raspberry Pi 2 support.

[Alexander Aring]

Hi Eric,

On Wed, Dec 16, 2015 at 03:55:07PM -0800, Eric Anholt wrote:
> This is a major rewrite of the previous Raspberry Pi 2 submission.
> SMP support is now included, and the DT includes are cleaned up to
> avoid massive duplication.
> 
> The branch (based on 4.4-rc5, to get the USB regression fixes) can be
> found at:
> 
> https://github.com/anholt/linux/tree/bcm2836-4.4
> 

thanks. :-)

I tried it via booting with the RPi firmware and your branch, but it
doesn't boot on my side:

I get:

Uncompressing Linux... done, booting the kernel.
[    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] Linux version 4.4.0-rc5+ (alex at omega) (gcc version 4.9.2 (OSELAS.Toolchain-2014.12.1) ) #989 Fri Dec 18 10:54:40 CET 2015
[    0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c53c7d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine model: Raspberry Pi 2 Model B Rev 1.1
[    0.000000] bootconsole [earlycon0] enabled
[    0.000000] Truncating RAM at 0x00000000-0x3e000000 to -0x30000000
[    0.000000] Consider using a HIGHMEM enabled kernel.
[    0.000000] Memory policy: Data cache writeback
[    0.000000] BUG: mapping for 0x3f201000 at 0xf0201000 out of vmalloc space
[    0.000000] ------------[ cut here ]------------
[    0.000000] WARNING: CPU: 0 PID: 0 at arch/arm/kernel/devtree.c:149 arm_dt_init_cpu_maps+0x100/0x1a4()
[    0.000000] DT /cpu 2 nodes greater than max cores 1, capping them
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.0-rc5+ #989
[    0.000000] Hardware name: BCM2835
[    0.000000] [<c0016c4c>] (unwind_backtrace) from [<c0013e58>] (show_stack+0x20/0x24)
[    0.000000] [<c0013e58>] (show_stack) from [<c0247620>] (dump_stack+0x20/0x28)
[    0.000000] [<c0247620>] (dump_stack) from [<c0023a84>] (warn_slowpath_common+0x9c/0xc4)
[    0.000000] [<c0023a84>] (warn_slowpath_common) from [<c0023aec>] (warn_slowpath_fmt+0x40/0x48)
[    0.000000] [<c0023aec>] (warn_slowpath_fmt) from [<c074ef94>] (arm_dt_init_cpu_maps+0x100/0x1a4)
[    0.000000] [<c074ef94>] (arm_dt_init_cpu_maps) from [<c074e60c>] (setup_arch+0x6f4/0x89c)
[    0.000000] [<c074e60c>] (setup_arch) from [<c074b9cc>] (start_kernel+0x74/0x3a4)
[    0.000000] [<c074b9cc>] (start_kernel) from [<00008078>] (0x8078)
[    0.000000] ---[ end trace cb88537fdc8fa200 ]---
[    0.000000] DT missing boot CPU MPIDR[23:0], fall back to default cpu_logical_map
[    0.000000] CPU: All CPU(s) started in SVC mode.
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 195072
[    0.000000] Kernel command line: earlyprintk console=ttyAMA0 dma.dmachans=0x7f35 bcm2708_fb.fbwidth=720 bcm2708_fb.fbheight=576 bcm2709.boardrev=0xa01041 bcm2709.serial=0x3449476 smsc95xx.macaddr=B8:27:EB:44:94:76 bcm2708_fb.fbswap=1 bcm2709.disk_led_gpio=47 bcm2709.disk_led_active_low=0 sdhci-bcm2708.emmc_clock_freq=250000000 vc_mem.mem_base=0x3ea00000 vc_mem.mem_size=0x3f000000  dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait consoleblank=0 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: 770408K/786432K available (5713K kernel code, 426K rwdata, 1720K rodata, 420K init, 687K bss, 16024K reserved, 0K cma-reserved)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xf0800000 - 0xff800000   ( 240 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xf0000000   ( 768 MB)
[    0.000000]     modules : 0xbf000000 - 0xc0000000   (  16 MB)
[    0.000000]       .text : 0xc0008000 - 0xc074a7cc   (7434 kB)
[    0.000000]       .init : 0xc074b000 - 0xc07b4000   ( 420 kB)
[    0.000000]       .data : 0xc07b4000 - 0xc081e910   ( 427 kB)
[    0.000000]        .bss : 0xc081e910 - 0xc08ca80c   ( 688 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] Kernel panic - not syncing: /soc/local_intc: unable to map local interrupt registers
[    0.000000] 
[    0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G        W       4.4.0-rc5+ #989
[    0.000000] Hardware name: BCM2835
[    0.000000] [<c0016c4c>] (unwind_backtrace) from [<c0013e58>] (show_stack+0x20/0x24)
[    0.000000] [<c0013e58>] (show_stack) from [<c0247620>] (dump_stack+0x20/0x28)
[    0.000000] [<c0247620>] (dump_stack) from [<c00c17c0>] (panic+0x84/0x210)
[    0.000000] [<c00c17c0>] (panic) from [<c0771d5c>] (bcm2836_arm_irqchip_l1_intc_of_init+0x94/0x110)
[    0.000000] [<c0771d5c>] (bcm2836_arm_irqchip_l1_intc_of_init) from [<c0779f04>] (of_irq_init+0x1a0/0x2a8)
[    0.000000] [<c0779f04>] (of_irq_init) from [<c0771af4>] (irqchip_init+0x14/0x1c)
[    0.000000] [<c0771af4>] (irqchip_init) from [<c074d7a8>] (init_IRQ+0x28/0x88)
[    0.000000] [<c074d7a8>] (init_IRQ) from [<c074bb64>] (start_kernel+0x20c/0x3a4)
[    0.000000] [<c074bb64>] (start_kernel) from [<00008078>] (0x8078)
[    0.000000] ---[ end Kernel panic - not syncing: /soc/local_intc: unable to map local interrupt registers


Any ideas why I get this message?

- Alex