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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-30 05:04:53 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-30 05:04:53 +0200 |
| commit | 9ff9a26b786c35ee8d2a66222924a807ec851a9f (patch) | |
| tree | db432a17bccca1ca2c16907f0ee83ac449ed4012 /arch/sh/mm/Kconfig | |
| parent | Merge commit 'kumar/next' into next (diff) | |
| parent | Merge branch 'bzip2-lzma-for-linus' of git://git.kernel.org/pub/scm/linux/ker... (diff) | |
| download | linux-9ff9a26b786c35ee8d2a66222924a807ec851a9f.tar.xz linux-9ff9a26b786c35ee8d2a66222924a807ec851a9f.zip | |
Merge commit 'origin/master' into next
Manual merge of:
arch/powerpc/include/asm/elf.h
drivers/i2c/busses/i2c-mpc.c
Diffstat (limited to 'arch/sh/mm/Kconfig')
| -rw-r--r-- | arch/sh/mm/Kconfig | 29 |
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 |