diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-08 10:08:26 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-08 10:08:26 -0700 |
commit | 53bcef60633086ad73683d01a4ef9ca678484d2d (patch) | |
tree | 8b14cc031124d0aa0da6cd3b60115bc7eaa80061 /arch/cris/arch-v32/kernel/head.S | |
parent | 4fd6c6bf83cb16321e9902b00e2af79054f4e0d6 (diff) | |
parent | 85d9865721c62a551547984e6cc8bd3ba732e294 (diff) |
Merge branch 'for-linus' of git://www.jni.nu/cris
* 'for-linus' of git://www.jni.nu/cris: (51 commits)
CRIS: Fix alignment problem for older ld
CRIS: Always dump registers for segfaulting process.
CRIS: Add config for pausing a seg-faulting process
CRIS: Don't take faults while in_atomic
CRIS: Fixup lookup for delay slot faults
CRIS: Discard exit.text and .data at runtime
CRIS: Add cache aligned and read mostly data sections
CRIS: Return something from profile write
CRIS: Add ARTPEC-3 and timestamps for sync-serial
CRIS: Better ARTPEC-3 support for gpio
CRIS: Add include guard
CRIS: Better handling of pinmux settings
CRIS: New DMA defines for ARTPEC-3
CRIS: __do_strncpy_from_user: Don't read the byte beyond the nil
CRIS: Pagetable for ARTPEC-3
CRIS: Machine dependent memmap.h
CRIS: Check if pointer is set before using it
CRIS: Machine dependent dma.h
CRIS: Define __read_mostly for CRISv32
CRIS: Discard .note.gnu.build-id section
...
Diffstat (limited to 'arch/cris/arch-v32/kernel/head.S')
-rw-r--r-- | arch/cris/arch-v32/kernel/head.S | 44 |
1 files changed, 41 insertions, 3 deletions
diff --git a/arch/cris/arch-v32/kernel/head.S b/arch/cris/arch-v32/kernel/head.S index 76266f80a5f..5d502b9ab56 100644 --- a/arch/cris/arch-v32/kernel/head.S +++ b/arch/cris/arch-v32/kernel/head.S @@ -69,7 +69,13 @@ secondary_cpu_entry: /* Entry point for secondary CPUs */ ;; ;; Note; 3 cycles is needed for a bank-select to take effect. Further; ;; bank 1 is the instruction MMU, bank 2 is the data MMU. -#ifndef CONFIG_ETRAX_VCS_SIM + +#ifdef CONFIG_CRIS_MACH_ARTPEC3 + move.d REG_FIELD(mmu, rw_mm_kbase_hi, base_e, 8) \ + | REG_FIELD(mmu, rw_mm_kbase_hi, base_c, 4) \ + | REG_FIELD(mmu, rw_mm_kbase_hi, base_d, 5) \ + | REG_FIELD(mmu, rw_mm_kbase_hi, base_b, 0xb), $r0 +#elif !defined(CONFIG_ETRAX_VCS_SIM) move.d REG_FIELD(mmu, rw_mm_kbase_hi, base_e, 8) \ | REG_FIELD(mmu, rw_mm_kbase_hi, base_c, 4) \ | REG_FIELD(mmu, rw_mm_kbase_hi, base_b, 0xb), $r0 @@ -88,7 +94,39 @@ secondary_cpu_entry: /* Entry point for secondary CPUs */ ;; Enable certain page protections and setup linear mapping ;; for f,e,c,b,4,0. -#ifndef CONFIG_ETRAX_VCS_SIM + + ;; ARTPEC-3: + ;; c,d used for linear kernel mapping, up to 512 MB + ;; e used for vmalloc + ;; f unused, but page mapped to get page faults + + ;; ETRAX FS: + ;; c used for linear kernel mapping, up to 256 MB + ;; d used for vmalloc + ;; e,f used for memory-mapped NOR flash + +#ifdef CONFIG_CRIS_MACH_ARTPEC3 + move.d REG_STATE(mmu, rw_mm_cfg, we, on) \ + | REG_STATE(mmu, rw_mm_cfg, acc, on) \ + | REG_STATE(mmu, rw_mm_cfg, ex, on) \ + | REG_STATE(mmu, rw_mm_cfg, inv, on) \ + | REG_STATE(mmu, rw_mm_cfg, seg_f, page) \ + | REG_STATE(mmu, rw_mm_cfg, seg_e, page) \ + | REG_STATE(mmu, rw_mm_cfg, seg_d, linear) \ + | REG_STATE(mmu, rw_mm_cfg, seg_c, linear) \ + | REG_STATE(mmu, rw_mm_cfg, seg_b, linear) \ + | REG_STATE(mmu, rw_mm_cfg, seg_a, page) \ + | REG_STATE(mmu, rw_mm_cfg, seg_9, page) \ + | REG_STATE(mmu, rw_mm_cfg, seg_8, page) \ + | REG_STATE(mmu, rw_mm_cfg, seg_7, page) \ + | REG_STATE(mmu, rw_mm_cfg, seg_6, page) \ + | REG_STATE(mmu, rw_mm_cfg, seg_5, page) \ + | REG_STATE(mmu, rw_mm_cfg, seg_4, linear) \ + | REG_STATE(mmu, rw_mm_cfg, seg_3, page) \ + | REG_STATE(mmu, rw_mm_cfg, seg_2, page) \ + | REG_STATE(mmu, rw_mm_cfg, seg_1, page) \ + | REG_STATE(mmu, rw_mm_cfg, seg_0, linear), $r2 +#elif !defined(CONFIG_ETRAX_VCS_SIM) move.d REG_STATE(mmu, rw_mm_cfg, we, on) \ | REG_STATE(mmu, rw_mm_cfg, acc, on) \ | REG_STATE(mmu, rw_mm_cfg, ex, on) \ @@ -329,7 +367,7 @@ _no_romfs_in_flash: ;; For jffs2, a jhead is prepended which contains with magic and length. ;; The jhead is not part of the jffs2 partition however. #ifndef CONFIG_ETRAXFS_SIM - move.d __vmlinux_end, $r0 + move.d __bss_start, $r0 #else move.d __end, $r0 #endif |