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Re: [PATCH] of: specify initrd location using 64-bit

To: Rob Herring <robherring2@gmail.com>
Subject: Re: [PATCH] of: specify initrd location using 64-bit
From: Cyril Chemparathy <cyril@ti.com>
Date: Wed, 12 Sep 2012 19:45:57 -0400
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On 9/12/2012 4:23 PM, Rob Herring wrote:
On 09/12/2012 11:05 AM, Cyril Chemparathy 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.

S-o-B?


Sorry about that, will include in v2.

[...]
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -76,7 +76,7 @@ static int __init parse_tag_initrd2(const struct tag *tag)
  __tagtable(ATAG_INITRD2, parse_tag_initrd2);

  #ifdef CONFIG_OF_FLATTREE
-void __init early_init_dt_setup_initrd_arch(unsigned long start, unsigned long 
end)
+void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)

phys_initrd_start/size need to change too. Not sure about similar things
on other arches.


I've fixed phys_initrd_start (not size) in another patch, please see [1].

Does u-boot need similar fixes?


We aren't there yet :-) We are currently running this platform without u-boot.


[1] http://permalink.gmane.org/gmane.linux.kernel/1356713

--
Thanks
- Cyril

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