[PATCH linux] dts: aspeed: merge initrd into kernel in flash layout

[Brad Bishop]

I’m not suggesting one way or the other as far as how to proceed but I don’t
think pulling chips is ever necessary.  You can always netboot and flash the
entire image image that way.

> On Feb 3, 2017, at 11:36 AM, Andrew Geissler <geissonator at gmail.com> wrote:
> 
> On Thu, Feb 2, 2017 at 6:51 PM, Joel Stanley <joel at jms.id.au> wrote:
>> On Wed, Feb 1, 2017 at 5:09 AM, Rick Altherr via openbmc
>> <openbmc at lists.ozlabs.org> wrote:
>>> openbmc/openbmc commit 1ed6fe335cda50cf60b7afddbe530077a1b25d27 includes
>>> the initrd in the kernel image.  Update the flash layout used by OpenBMC
>>> dts accordingly.  This is required for OpenBMC's kernel update mechanism
>>> to work as the kernel image now exceeds the size of the original kernel
>>> partition.
>> 
>> Brad, Patrick: This change will mean new kernels can't boot on old
>> flash layouts, and vice versa.
>> 
>> All users will need to do a full-flash update to move to this version,
>> and a full flash update to downgrade.
>> 
>> Are we ok to proceed?
> 
> Ack, we just went through this with the last update and all hit
> https://github.com/openbmc/openbmc/issues/1030.  It was pretty
> disruptive for all of us in the lab needing to pull the chips and
> manually flash each.  This is would be fine if we can just flash the
> <system>.all.tar and all works ok, but that was not what we found in
> https://github.com/openbmc/openbmc/issues/1030.
> 
>> Cheers,
>> 
>> Joel
>> 
>>> 
>>> Signed-off-by: Rick Altherr <raltherr at google.com>
>>> ---
>>> arch/arm/boot/dts/aspeed-bmc-opp-flash-layout.dtsi | 6 +-----
>>> 1 file changed, 1 insertion(+), 5 deletions(-)
>>> 
>>> diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-flash-layout.dtsi b/arch/arm/boot/dts/aspeed-bmc-opp-flash-layout.dtsi
>>> index 65095a40a203..4bcfd1bf8dc5 100644
>>> --- a/arch/arm/boot/dts/aspeed-bmc-opp-flash-layout.dtsi
>>> +++ b/arch/arm/boot/dts/aspeed-bmc-opp-flash-layout.dtsi
>>> @@ -12,13 +12,9 @@
>>>                                        label = "u-boot-env";
>>>                                };
>>>                                kernel at 80000 {
>>> -                                       reg = < 0x80000 0x280000 >;
>>> +                                       reg = < 0x80000 0x440000 >;
>>>                                        label = "kernel";
>>>                                };
>>> -                               initramfs at 300000 {
>>> -                                       reg = < 0x300000 0x1c0000 >;
>>> -                                       label = "initramfs";
>>> -                               };
>>>                                rofs at 0c0000 {
>>>                                        reg = < 0x4c0000 0x1740000 >;
>>>                                        label = "rofs";
>>> --
>>> 2.11.0.483.g087da7b7c-goog
>>> 
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>>> openbmc at lists.ozlabs.org
>>> https://lists.ozlabs.org/listinfo/openbmc
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