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sh: URAM node support for SH7722.

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This adds the URAM block on SH7722 as a separate node.
Sparsemem is required for this, or it can simply be disabled
by explicitly selecting a flatmem model.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2007-06-06 17:58:56 +09:00 committed by Paul Mundt
parent b241cb0c88
commit 520588f47f
2 changed files with 10 additions and 1 deletions
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9
arch/sh/kernel/cpu/sh4a/setup-sh7722.c
View File

@ -1,7 +1,7 @@
/*
* SH7722 Setup
*
* Copyright (C) 2006 Paul Mundt
* Copyright (C) 2006 - 2007 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
@ -10,6 +10,7 @@
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/serial.h>
#include <linux/mm.h>
#include <asm/sci.h>
static struct plat_sci_port sci_platform_data[] = {
@ -78,3 +79,9 @@ void __init init_IRQ_ipr(void)
{
make_ipr_irq(sh7722_ipr_map, ARRAY_SIZE(sh7722_ipr_map));
}
void __init plat_mem_setup(void)
{
/* Register the URAM space as Node 1 */
setup_bootmem_node(1, 0x055f0000, 0x05610000);
}

2
arch/sh/mm/Kconfig
View File

@ -211,6 +211,7 @@ config CPU_SUBTYPE_SH7722
select CPU_SH4AL_DSP
select CPU_SHX2
select CPU_HAS_IPR_IRQ
select ARCH_SPARSEMEM_ENABLE
endchoice
@ -321,6 +322,7 @@ config ARCH_SPARSEMEM_DEFAULT
config MAX_ACTIVE_REGIONS
int
default "2" if (CPU_SUBTYPE_SH7722 && SPARSEMEM)
default "1"
config ARCH_POPULATES_NODE_MAP