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authorNathan Lynch <ntl@pobox.com>2007-02-05 20:01:15 -0600
committerPaul Mackerras <paulus@samba.org>2007-02-07 14:03:23 +1100
commit4297c9869b3452860f1a2c588d43f9e62c701019 (patch)
tree402d2606a4121fa92753449f611cad11c3412335 /arch/powerpc
parent721e0c9037ef4e755f3bd87fee92beff452be420 (diff)
downloadop-kernel-dev-4297c9869b3452860f1a2c588d43f9e62c701019.zip
op-kernel-dev-4297c9869b3452860f1a2c588d43f9e62c701019.tar.gz
[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: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/Kconfig1
-rw-r--r--arch/powerpc/platforms/maple/setup.c3
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 901f12d..5f80f0b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -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.
diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c
index 50855d4..82d3f9e 100644
--- a/arch/powerpc/platforms/maple/setup.c
+++ b/arch/powerpc/platforms/maple/setup.c
@@ -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();
}
/*
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