Re: [PATCH RFC RFT 0/2] ARM: Kirkwood: Synology DT files

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On Fri, Jan 10, 2014 at 03:25:48PM +0100, Andrew Lunn wrote:
> On Sat, Jan 11, 2014 at 12:09:11AM +1000, Ben Peddell wrote:
> > Bytes transferred = 1954736 (1dd3b0 hex)
> > Marvell>> setenv bootargs console=ttyS0,115200 ip=off initrd=0x00800040,0x0013FFC0 root=/dev/md0 rw syno_hw_version=DS211j ihd_num=2 netif_num=1 earlyprintk
> 
> I don't see you loading the initrd into RAM at 0x0080 0000.

However, the kernel _is_ being told that the initrd is at 0x00800040.

> > Uncompressing Linux... done, booting the kernel.
> > [    0.000000] Booting Linux on physical CPU 0x0
> > [    0.000000] Linux version 3.13.0-rc7-ds211j+ (root@lurch) (gcc version 4.8.2 (Gentoo 4.8.2 p1.3, pie-0.5.8) ) #2 Thu Jan 9 08:52:24 EST 2014
> > [    0.000000] CPU: Feroceon 88FR131 [56251311] revision 1 (ARMv5TE), cr=00053977
> > [    0.000000] CPU: VIVT data cache, VIVT instruction cache
> > [    0.000000] Machine model: Synology DS210 v10, v20, v30, DS211j
> > [    0.000000] bootconsole [earlycon0] enabled
> > [    0.000000] INITRD: 0xf8280040+0x000f993c is not a memory region - disabling initrd
> 
> The kernel is correct. There is no RAM here. That is in the IOMEM
> space.

But here the kernel has ignored the command line parameter and instead
used the one passed via DT.  That is not correct - command line parameters
must always override ATAGs or DT.

(That's irrespective of whether what's actually being asked of the kernel
is correct or not - the principle here applies that command line parameters
override, and in this case they aren't.)

-- 
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Estimate before purchase was "up to 13.2Mbit".
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