Re: [PATCH 01/17] ARM: proc: add definition of cpu_reset for ARMv6 and ARMv7 cores

On Thu, Jul 07, 2011 at 04:50:14PM +0100, Lorenzo Pieralisi wrote:

From: Will Deacon will.deacon@arm.com

This patch adds simple definitions of cpu_reset for ARMv6 and ARMv7 cores, which disable the MMU via the SCTLR.

This really needs fixing properly, so that we have this well defined across all supported ARM cores. Requiring ARMv6 and ARMv7 to have this code called with a flat mapping (which may overlap a section boundary) vs ARMv5 and lower code which doesn't is just silly.

With any API, we need consistency. So if ARMv6 and v7 require a flat mapping, we need to ensure that ARMv5 and lower is happy to deal with that code being also called with a flat mapping.