diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 11:11:23 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 11:11:23 -0700 |
commit | 928a726b0e12184729900c076e13dbf1c511c96c (patch) | |
tree | f31a7f23c1b511ebb486598cc746786e1821d48c /arch/sh/mm/pmb-fixed.c | |
parent | 8ff64b539bfd998792614481ccb67139b97075ef (diff) | |
parent | eaeed5d31d8ded02fa0a4b608f57418cc0e65b07 (diff) |
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/pmb-fixed.c')
-rw-r--r-- | arch/sh/mm/pmb-fixed.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/sh/mm/pmb-fixed.c b/arch/sh/mm/pmb-fixed.c new file mode 100644 index 000000000000..43c8eac4d8a1 --- /dev/null +++ b/arch/sh/mm/pmb-fixed.c @@ -0,0 +1,45 @@ +/* + * arch/sh/mm/fixed_pmb.c + * + * Copyright (C) 2009 Renesas Solutions Corp. + * + * 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 + * for more details. + */ +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/io.h> +#include <asm/mmu.h> +#include <asm/mmu_context.h> + +static int __uses_jump_to_uncached fixed_pmb_init(void) +{ + int i; + unsigned long addr, data; + + jump_to_uncached(); + + for (i = 0; i < PMB_ENTRY_MAX; i++) { + addr = PMB_DATA + (i << PMB_E_SHIFT); + data = ctrl_inl(addr); + if (!(data & PMB_V)) + continue; + + if (data & PMB_C) { +#if defined(CONFIG_CACHE_WRITETHROUGH) + data |= PMB_WT; +#elif defined(CONFIG_CACHE_WRITEBACK) + data &= ~PMB_WT; +#else + data &= ~(PMB_C | PMB_WT); +#endif + } + ctrl_outl(data, addr); + } + + back_to_cached(); + + return 0; +} +arch_initcall(fixed_pmb_init); |