On Sat, Jan 11, 2014 at 12:38:25AM +1000, Ben Peddell wrote:
> On 11/01/14 00:25, Andrew Lunn wrote:
> > On Sat, Jan 11, 2014 at 12:09:11AM +1000, Ben Peddell wrote:
> >> On 10/01/14 21:28, Russell King - ARM Linux wrote:
> >>> On Fri, Jan 10, 2014 at 11:01:06AM +1000, Ben Peddell wrote:
> >>>> It appears the initrd address in the devicetree structure (which is
> >>>> filled in from what is passed by the bootloader when
> >>>> CONFIG_ARM_ATAG_DTB_COMPAT is set) is processed _after_ the address in
> >>>> the initrd= kernel parameter is processed.
> >>>
> >>> That's wrong. Kernel parameters should always override what's passed by
> >>> boot loaders etc.
> >>
> >> In that case, what I saw was a bug - note that this only occurs when
> >> DeviceTree is enabled:
> >>
> >>
> >> __ __ _ _
> >> | \/ | __ _ _ ____ _____| | |
> >> | |\/| |/ _` | '__\ \ / / _ \ | |
> >> | | | | (_| | | \ V / __/ | |
> >> |_| |_|\__,_|_| \_/ \___|_|_|
> >> _ _ ____ _
> >> | | | | | __ ) ___ ___ | |_
> >> | | | |___| _ \ / _ \ / _ \| __|
> >> | |_| |___| |_) | (_) | (_) | |_
> >> \___/ |____/ \___/ \___/ \__| ** LOADER **
> >> ** 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@f8000000] Flash: 4 MB
> >> Addresses 8M - 0M are saved for the U-Boot usage.
> >> Mem malloc Initialization (8M - 7M): Done
> >> Using default environment
> >>
> >>
> >> CPU : Marvell Feroceon (Rev 1)
> >>
> >> Streaming disabled
> >> Write allocate disabled
> >>
> >> Module 1 is AUDIO
> >>
> >> USB 0: host mode
> >>
> >> Synology Model: DS211j
> >> Fan Status: Good
> >>
> >> Net: egiga0 [PRIME]
> >> Hit any key to stop autoboot: 0
> >> Marvell>> setenv ipaddr 192.168.200.62
> >> Marvell>> setenv serverip 192.168.200.16
> >> Marvell>> tftp 0x01000000 uImage-3.13-rc7-ds211j-git-fdt
> >> Using egiga0 device
> >> TFTP from server 192.168.200.16; our IP address is 192.168.200.62
> >> Filename 'uImage-3.13-rc7-ds211j-git-fdt'.
> >> Load address: 0x1000000
> >> Loading: #################################################################
> >> #################################################################
> >> #################################################################
> >> #################################################################
> >> #################################################################
> >> #########################################################
> >> done
> >
> > So here you load the kernel into RAM at 0x0100 0000.
> >
> >
> >> 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.
>
> See below
>
> >
> >> Marvell>> bootm 0x01000000 0xf8280000
> >
> > And here you tell it the initrd is at 0xf8280000.
>
> This is because I am using the initrd in flash.
>
> >
> >> ## Booting image at 01000000 ...
> >> Bad Magic Number
> >> Marvell>> tftp 0x01000000 uImage-3.13-rc7-ds211j-git-fdt
> >> Using egiga0 device
> >> TFTP from server 192.168.200.16; our IP address is 192.168.200.62
> >> Filename 'uImage-3.13-rc7-ds211j-git-fdt'.
> >> Load address: 0x1000000
> >> Loading: #################################################################
> >> #################################################################
> >> #################################################################
> >> #################################################################
> >> #################################################################
> >> #########################################################
> >> done
> >> Bytes transferred = 1954800 (1dd3f0 hex)
> >> Marvell>> bootm 0x01000000 0xf8280000
> >> ## Booting image at 01000000 ...
> >> Image Name: linux-3.13-rc7-ds211j+
> >> Image Type: ARM Linux Kernel Image (uncompressed)
> >> Data Size: 1954736 Bytes = 1.9 MB
> >> Load Address: 00008000
> >> Entry Point: 00008000
> >> Verifying Checksum ... OK
> >> OK
> >> ## Loading Ramdisk Image at f8280000 ...
> >> Image Name: altair-boot
> >> Image Type: ARM Linux RAMDisk Image (unknown compression)
> >> Data Size: 1022268 Bytes = 998.3 kB
> >> Load Address: 00800000
> >> Entry Point: 00800000
> >> Verifying Checksum ... OK
>
> Here the bootloader copies the initrd to 0x00800040, yet passes
> 0xf8280040 to the kernel.
But does it pass 0xf8280040 because you used:
bootm 0x01000000 0xf8280000
What happens if you use
bootm 0x01000000 0x00800000
Andrew
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