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authorLinus Torvalds <torvalds@linux-foundation.org>2009-03-26 19:11:23 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2009-03-26 19:11:23 +0100
commit928a726b0e12184729900c076e13dbf1c511c96c (patch)
treef31a7f23c1b511ebb486598cc746786e1821d48c /arch/sh/mm/Kconfig
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw (diff)
parentsh: add support for SMSC Polaris platform (diff)
downloadlinux-928a726b0e12184729900c076e13dbf1c511c96c.tar.xz
linux-928a726b0e12184729900c076e13dbf1c511c96c.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (96 commits) sh: add support for SMSC Polaris platform sh: fix the HD64461 level-triggered interrupts handling sh: sh-rtc wakeup support sh: sh-rtc invalid time rework sh: sh-rtc carry interrupt rework sh: disallow kexec virtual entry sh: kexec jump: fix for ftrace. sh: kexec: Drop SR.BL bit toggling. sh: add kexec jump support sh: rework kexec segment code sh: simplify kexec vbr code sh: Flush only the needed range when unmapping a VMA. sh: Update debugfs ASID dumping for 16-bit ASID support. sh: tlb-pteaex: Kill off legacy PTEA updates. sh: Support for extended ASIDs on PTEAEX-capable SH-X3 cores. sh: sh7763rdp: Change IRQ number for sh_eth of sh7763rdp sh: espt-giga board support sh: dma: Make G2 DMA configurable. sh: dma: Make PVR2 DMA configurable. sh: Move IRQ multi definition of DMAC to defconfig ...
Diffstat (limited to 'arch/sh/mm/Kconfig')
-rw-r--r--arch/sh/mm/Kconfig29
1 files changed, 28 insertions, 1 deletions
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 555ec9714b9e..10c24356d2d5 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -57,7 +57,7 @@ config 32BIT
bool
default y if CPU_SH5
-config PMB
+config PMB_ENABLE
bool "Support 32-bit physical addressing through PMB"
depends on MMU && EXPERIMENTAL && (CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785)
select 32BIT
@@ -67,6 +67,33 @@ config PMB
32-bits through the SH-4A PMB. If this is not set, legacy
29-bit physical addressing will be used.
+choice
+ prompt "PMB handling type"
+ depends on PMB_ENABLE
+ default PMB_FIXED
+
+config PMB
+ bool "PMB"
+ depends on MMU && EXPERIMENTAL && (CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785)
+ select 32BIT
+ help
+ If you say Y here, physical addressing will be extended to
+ 32-bits through the SH-4A PMB. If this is not set, legacy
+ 29-bit physical addressing will be used.
+
+config PMB_FIXED
+ bool "fixed PMB"
+ depends on MMU && EXPERIMENTAL && (CPU_SUBTYPE_SH7780 || \
+ CPU_SUBTYPE_SH7785)
+ select 32BIT
+ help
+ If this option is enabled, fixed PMB mappings are inherited
+ from the boot loader, and the kernel does not attempt dynamic
+ management. This is the closest to legacy 29-bit physical mode,
+ and allows systems to support up to 512MiB of system memory.
+
+endchoice
+
config X2TLB
bool "Enable extended TLB mode"
depends on (CPU_SHX2 || CPU_SHX3) && MMU && EXPERIMENTAL