Commit 4297c986 authored by Nathan Lynch's avatar Nathan Lynch Committed by Paul Mackerras
Browse files

[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 <>
Signed-off-by: default avatarPaul Mackerras <>
parent 721e0c90
...@@ -491,6 +491,7 @@ config PPC_MAPLE ...@@ -491,6 +491,7 @@ config PPC_MAPLE
select PPC_970_NAP select PPC_970_NAP
select PPC_RTAS select PPC_RTAS
default n default n
help help
This option enables support for the Maple 970FX Evaluation Board. This option enables support for the Maple 970FX Evaluation Board.
...@@ -62,6 +62,7 @@ ...@@ -62,6 +62,7 @@
#include <asm/mpic.h> #include <asm/mpic.h>
#include <asm/rtas.h> #include <asm/rtas.h>
#include <asm/udbg.h> #include <asm/udbg.h>
#include <asm/nvram.h>
#include "maple.h" #include "maple.h"
...@@ -195,6 +196,8 @@ void __init maple_setup_arch(void) ...@@ -195,6 +196,8 @@ void __init maple_setup_arch(void)
maple_use_rtas_reboot_and_halt_if_present(); maple_use_rtas_reboot_and_halt_if_present();
printk(KERN_DEBUG "Using native/NAP idle loop\n"); printk(KERN_DEBUG "Using native/NAP idle loop\n");
} }
/* /*
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