[PATCH v2] of: Specify initrd location using 64-bit

[Vineet Gupta]

On 07/01/2013 11:52 PM, Santosh Shilimkar wrote:
> On some PAE architectures, the entire range of physical memory could reside
> outside the 32-bit limit.  These systems need the ability to specify the
> initrd location using 64-bit numbers.
>
> This patch globally modifies the early_init_dt_setup_initrd_arch() function to
> use 64-bit numbers instead of the current unsigned long.
>
> There has been quite a bit of debate about whether to use u64 or phys_addr_t.
> It was concluded to stick to u64 to be consistent with rest of the device
> tree code. As summarized by Geert, "The address to load the initrd is decided
> by the bootloader/user and set at that point later in time. The dtb should not
> be tied to the kernel you are booting"
>
> More details on the discussion can be found here:
> https://lkml.org/lkml/2013/6/20/690
> https://lkml.org/lkml/2012/9/13/544
>
> Cc: Grant Likely <grant.likely at linaro.org>
> Cc: Rob Herring <rob.herring at calxeda.com>
> Cc: Geert Uytterhoeven <geert at linux-m68k.org>
> Cc: Sebastian Andrzej Siewior <bigeasy at linutronix.de>
> Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
> Cc: Vineet Gupta <vgupta at synopsys.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>
> Cc: Mark Salter <msalter at redhat.com>
> Cc: Aurelien Jacquiot <a-jacquiot at ti.com>
> Cc: James Hogan <james.hogan at imgtec.com>
> Cc: Michal Simek <monstr at monstr.eu>
> Cc: Ralf Baechle <ralf at linux-mips.org>
> Cc: Jonas Bonn <jonas at southpole.se>
> Cc: Benjamin Herrenschmidt <benh at kernel.crashing.org>
> Cc: Paul Mackerras <paulus at samba.org>
> Cc: x86 at kernel.org
> Cc: arm at kernel.org
> Cc: Chris Zankel <chris at zankel.net>
> Cc: Max Filippov <jcmvbkbc at gmail.com>
> Cc: bigeasy at linutronix.de
> Cc: robherring2 at gmail.com
> Cc: Nicolas Pitre <nicolas.pitre at linaro.org>
>
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-c6x-dev at linux-c6x.org
> Cc: linux-mips at linux-mips.org
> Cc: linuxppc-dev at lists.ozlabs.org
> Cc: linux-xtensa at linux-xtensa.org
> Cc: devicetree-discuss at lists.ozlabs.org
>
> Signed-off-by: Santosh Shilimkar <santosh.shilimkar at ti.com>
> ---

Acked-by: Vineet Gupta <vgupta at synopsys.com>  [For arch/arc bits]

-Vineet