[PATCH v3] ARM: bcm: Add DEBUG_LL console support

Markus Mayer markus.mayer at linaro.org
Thu Nov 14 14:48:37 EST 2013


On 29 October 2013 23:30, Christian Daudt <bcm at fixthebug.org> wrote:
> On Wed, Oct 16, 2013 at 11:12 PM, Christian Daudt <bcm at fixthebug.org> wrote:
>> On Sat, Oct 5, 2013 at 8:43 AM, Christian Daudt <bcm at fixthebug.org> wrote:
>>> This patch adds low level debug uart support to Broadcom
>>>  mobile based SOCs.
>>>
>>> Signed-off-by: Christian Daudt <bcm at fixthebug.org>
>>>
>>> Changes from V2:
>>>  - Changed to follow hex ordering on entries
>>>  - Dropped defconfig changes
>>>
>>> Changes from V1:
>>>  - Switched to use the common 8250 debug introduced in 3.12-rc1
>>>
>>
>> Hi Russell,
>>  Does V3 look ok ?
>>
>>  Thanks,
>>    csd
> Hi,
>  Can anyone provide an ack on this mod ?
>
>  Thanks,
>    csd

Tested-by: Markus Mayer <markus.mayer at linaro.org>

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 3.12.0+ (mmayer at lbrmn-lnxub70.ric.broadcom.com)
[    0.000000] CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=10c53c7d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing
instruction cache
[    0.000000] Machine: BCM281xx Broadcom Application Processor,
model: BCM28155 AP board
[    0.000000] bootconsole [earlycon0] enabled
[    0.000000] Truncating RAM at 90000000-bfffffff to -bf7fffff
(vmalloc region overlap).
[    0.000000] Memory policy: ECC disabled, Data cache writeback
[    0.000000] CPU: All CPU(s) started in SVC mode.
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.
Total pages: 193040
[    0.000000] Kernel command line: console=ttyS0,115200n8
root=/dev/mmcblk0p8 rootwait rootfstype=ext4 earlyprintk
[...]
[    0.200000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.210000] 3e000000.uart: ttyS0 at MMIO 0x3e000000 (irq = 99,
base_baud = 812500) is a 16550A
[    0.220000] console [ttyS0] enabled, bootconsole disabled
[    0.220000] console [ttyS0] enabled, bootconsole disabled
[    0.230000] mousedev: PS/2 mouse device common for all mice
[...]

-- 
Markus Mayer
Broadcom Landing Team



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