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Commit 4297c986 authored by Nathan Lynch's avatar Nathan Lynch Committed by Paul Mackerras
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[POWERPC] Maple: use mmio nvram 



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: default avatarNathan Lynch <ntl@pobox.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 721e0c90

arch/powerpc/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -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.

arch/powerpc/platforms/maple/setup.c

+3 −0
Original line number Diff line number Diff line
@@ -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();

}



/*