[PATCH v2 1/5] mm: create generic early_ioremap() support

[Catalin Marinas]

On Tue, Jan 07, 2014 at 02:35:16AM +0000, Mark Salter wrote:
> This patch creates a generic implementation of early_ioremap() support
> based on the existing x86 implementation. early_ioremp() is useful for
> early boot code which needs to temporarily map I/O or memory regions
> before normal mapping functions such as ioremap() are available.
> 
> There is one difference from the existing x86 implementation which
> should be noted. The generic early_memremap() function does not return
> an __iomem pointer and a new early_memunmap() function has been added
> to act as a wrapper for early_iounmap() but with a non __iomem pointer
> passed in. This is in line with the first patch of this series:
> 
>   https://lkml.org/lkml/2013/12/22/69
> 
> Signed-off-by: Mark Salter <msalter at redhat.com>
> CC: x86 at kernel.org
> CC: linux-arm-kernel at lists.infradead.org
> CC: Andrew Morton <akpm at linux-foundation.org>
> CC: Arnd Bergmann <arnd at arndb.de>
> CC: Ingo Molnar <mingo at kernel.org>
> CC: Thomas Gleixner <tglx at linutronix.de>
> CC: "H. Peter Anvin" <hpa at zytor.com>
> CC: Russell King <linux at arm.linux.org.uk>
> CC: Catalin Marinas <catalin.marinas at arm.com>
> CC: Will Deacon <will.deacon at arm.com>

Acked-by: Catalin Marinas <catalin.marinas at arm.com>