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Re: [PATCH v4 4/8] rt2800: fix registers init for MT7620

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On Wed, Oct 17, 2018 at 03:25:58PM +0200, Tom Psyborg wrote:
> On 16/10/2018, Stanislaw Gruszka <sgruszka@xxxxxxxxxx> wrote:
> > On Tue, Oct 16, 2018 at 01:32:18PM +0200, Tom Psyborg wrote:
> >> I am sending you two builds privately so please check if there are any
> >> differences between the two builds and report back. Thanks.
> >
> > I extracted rt2800lib.ko module from provided images, did disassembly via:
> >
> > ./staging_dir/toolchain-mipsel_24kc_gcc-7.3.0_musl/bin/mipsel-openwrt-linux-objdump
> > \
> >  -d -r --prefix-addresses ~/rt2800lib-BUILDn.ko  > ~/BUILDn.dump.txt
> >
> > command and compered disassembled code. Here is difference:
> >
> > $ diff -up  BUILD1.dump.txt BUILD2.dump.txt
> > --- BUILD1.dump.txt	2018-10-16 16:40:34.834220838 +0200
> > +++ BUILD2.dump.txt	2018-10-16 16:40:40.187219211 +0200
> > @@ -1,5 +1,5 @@
> >
> > -/home/stasiu/rt2800lib-BUILD1.ko:     file format elf32-tradlittlemips
> > +/home/stasiu/rt2800lib-BUILD2.ko:     file format elf32-tradlittlemips
> >
> >
> >  Disassembly of section .text:
> > @@ -9374,7 +9374,7 @@ Disassembly of section .text:
> >  00007f80 <rt2800_clear_beacon+0x224> jalr	v0
> >  00007f84 <rt2800_clear_beacon+0x228> move	a0,s0
> >  00007f88 <rt2800_clear_beacon+0x22c> lhu	v1,732(s0)
> > -00007f8c <rt2800_clear_beacon+0x230> li	v0,21392
> > +00007f8c <rt2800_clear_beacon+0x230> li	v0,25426
> >  00007f90 <rt2800_clear_beacon+0x234> bne	v1,v0,0000810c
> > <rt2800_clear_beacon+0x3b0>
> >  00007f94 <rt2800_clear_beacon+0x238> li	a2,1025
> >  00007f98 <rt2800_clear_beacon+0x23c> lw	v0,4(s0)
> >
> > There is no difference in init_registers (which is inlined in
> > rt2800_enable_radio). The only difference is in some number
> > rt2800_clear_beacon() function.
> >
> > Regards
> > Stanislaw
> >
> 
> i meant you try it on your nexx device. and post dmesg if you can boot them

I tried to do this, but somehow after update BUILD1 image into device
my configuration was wiped out :-( and I have to reconfigure the
device now. Anyway I'm going to test and provide dmesg , but this
will take some time.

Regards
Stanislaw



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