linux_dsm_epyc7002/arch/arc
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 Couple of Platform updates (Device Tree files primarily) given that the 2013-07-10 10:11:26 -07:00
configs Couple of Platform updates (Device Tree files primarily) given that the 2013-07-10 10:11:26 -07:00
include ARC changes for 3.11 2013-07-03 11:09:27 -07:00
kernel ARC changes for 3.11 2013-07-03 11:09:27 -07:00
lib ARC: String library 2013-02-11 20:00:35 +05:30
mm of: Specify initrd location using 64-bit 2013-07-24 11:10:01 +01:00
oprofile ARC: OProfile support 2013-02-15 23:16:00 +05:30
plat-arcfpga Couple of Platform updates (Device Tree files primarily) given that the 2013-07-10 10:11:26 -07:00
plat-tb10x ARC: [TB10x] Updates for irqchip driver 2013-06-28 15:07:42 +05:30
Kbuild ARC: Build system: Makefiles, Kconfig, Linker script 2013-02-11 20:00:25 +05:30
Kconfig Merge branch 'kconfig-diet' from Dave Hansen 2013-07-04 11:25:51 -07:00
Kconfig.debug consolidate per-arch stack overflow debugging options 2013-07-04 11:25:39 -07:00
Makefile ARC: Adjustments for gcc 4.8 2013-06-27 14:35:32 +05:30