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RFC ARM: Kirkwood: Synology DT files

Sebastian Hesselbarth linux-arm-kernel linux-devicetree 1 version New

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  1. v1 RFC Latest0 of 2 patches 0 repliesNew

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Cover letter [PATCH RFC RFT 0/2] ARM: Kirkwood: Synology DT files
Quoted 15 lines · Andrew Lunn
Quoted 14 lines · Ben Peddell

** MARVELL BOARD: Synology Disk Station LE

U-Boot 1.1.4 (Jul 6 2010 - 19:26:08) Marvell version: 3.4.4

U-Boot code: 00600000 -> 0067FFF0 BSS: -> 0068B43C

Soc: 88F6281 A1 (DDR2)
CPU running @ 1200Mhz L2 running @ 480Mhz SysClock = 400Mhz , TClock = 200Mhz

DRAM CAS Latency = 6 tRP = 6 tRAS = 18 tRCD=6
DRAM CS[0] base 0x00000000 size 128MB
DRAM Total size 128MB 16bit width [4096kB at f8000000] Flash: 4 MB

...

Quoted 11 lines
Quoted 8 lines

Uncompressing Linux... done, booting the kernel.

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 3.13.0-rc7-ds211j+ (root at 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.

Looks like a dirty trick to mount the initrd directly from the boot device remap which is at 0xf8000000 by default.

Copying the image from the boot device to ram in u-boot and pass the correct initrd address should help here. Or we need a mbus ranges entry for it, too.

Sebastian

Read the cover letter in its thread