[PATCHv2 3/3] ARM: dts: socfpga: memreserve first 4KB for SMP code

Hi Mark,

On 8/15/14, 6:27 AM, Mark Rutland wrote:

Hi Dinh,

On Thu, Aug 14, 2014 at 10:13:34PM +0100, dinguyen at opensource.altera.com wrote:

quoted

From: Dinh Nguyen <redacted>

The SOCFPGA's SMP code uses 0x0 for as the location for the trampoline to
bring secondary cores online. This patch adds a /memreserve/ section to
reserve the first 4K for the SMP trampoline code.

I'm slightly confused. 

Sorry to split hairs here, but I think the comment is subtly wrong.

The trampoline code seems to be placed in this location by Linux, so
it's not that we're protecting the trampoline code, but rather we're
preserving the location for future use.

Yes, you're correct. Preserving this location for possible copying of
the trampoline code for SMP usage is more of a correct statement.

I take it that the reset address isn't configurable?

No, I don't believe it is on this platform.

Thanks for the review. I will spin a V3 with an updated commit message.

Dinh