linux/arch/arm64
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 arm64: Add initial DTS for APM X-Gene Storm SOC and APM Mustang board 2013-06-20 17:03:59 +01:00
configs arm64: Enable APM X-Gene SOC family in the defconfig 2013-06-20 17:03:59 +01:00
include - Post -rc1 update to the common reboot infrastructure. 2013-07-19 15:08:53 -07:00
kernel - Post -rc1 update to the common reboot infrastructure. 2013-07-19 15:08:53 -07:00
kvm arm64: KVM: Kconfig integration 2013-07-04 14:40:26 +02:00
lib arm64: Treat the bitops index argument as an 'int' 2013-05-08 10:33:17 +01:00
mm of: Specify initrd location using 64-bit 2013-07-24 11:10:01 +01:00
xen xen/arm and xen/arm64: implement HYPERVISOR_tmem_op 2013-07-04 11:41:12 +00:00
Kconfig arm64: KVM: Kconfig integration 2013-07-04 14:40:26 +02:00
Kconfig.debug arm64: Kconfig.debug: Remove unused CONFIG_DEBUG_ERRORS 2013-03-19 16:19:19 +00:00
Makefile arm64/Makefile: provide vdso_install target 2013-06-19 17:54:06 +01:00