linux/arch/xtensa
Santosh Shilimkar 374d5c9964 of: Specify initrd location using 64-bit
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

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
2013-07-24 11:10:01 +01:00
..
boot xtensa: add static function tracer support 2013-07-08 01:18:57 -07:00
configs xtensa: remove explicit selection of GENERIC_GPIO 2013-03-20 22:48:15 +09:00
include Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-07-13 17:42:22 -07:00
kernel of: Specify initrd location using 64-bit 2013-07-24 11:10:01 +01:00
lib xtensa: clean up files to make them code-style compliant 2012-12-18 21:10:25 -08:00
mm Xtensa patchset for v3.11-rc1 2013-07-11 12:30:33 -07:00
oprofile xtensa: fix oprofile building as module 2013-05-09 01:07:09 -07:00
platforms xtensa: remove the second argument of __bio_kmap_atomic() 2013-07-08 01:23:15 -07:00
variants xtensa: consolidate ccount access routines 2013-07-08 01:11:37 -07:00
Kconfig xtensa: add static function tracer support 2013-07-08 01:18:57 -07:00
Kconfig.debug xtensa: check TLB sanity on return to userspace 2013-07-08 01:18:56 -07:00
Makefile xtensa: add support for oprofile 2013-02-23 19:22:54 -08:00