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[POWERPC] Maple: use mmio nvram

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Some systems supported by the maple platform (e.g. JS2x blades running
SLOF) are able to use the mmio_nvram backend for reading and writing
nvram.  This is an improvement over the current situation -- no nvram
access from userspace at all.

Select MMIO_NVRAM for the maple platform.

Initialize the mmio_nvram backend from maple setup code.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Nathan Lynch 2007-02-05 20:01:15 -06:00 committed by Paul Mackerras
parent 721e0c9037
commit 4297c9869b
2 changed files with 4 additions and 0 deletions
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1
arch/powerpc/Kconfig
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@ -491,6 +491,7 @@ config PPC_MAPLE
select PPC_970_NAP
select PPC_NATIVE
select PPC_RTAS
select MMIO_NVRAM
default n
help
This option enables support for the Maple 970FX Evaluation Board.

3
arch/powerpc/platforms/maple/setup.c
View File

@ -62,6 +62,7 @@
#include <asm/mpic.h>
#include <asm/rtas.h>
#include <asm/udbg.h>
#include <asm/nvram.h>
#include "maple.h"
@ -195,6 +196,8 @@ void __init maple_setup_arch(void)
maple_use_rtas_reboot_and_halt_if_present();
printk(KERN_DEBUG "Using native/NAP idle loop\n");
mmio_nvram_init();
}
/*