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| author | LEROY Christophe <christophe.leroy@c-s.fr> | 2013-09-24 10:18:39 +0200 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2013-10-28 21:11:21 -0500 |
| commit | 4e591f3c0a618b8230a37bfff64b59e76374f2e5 (patch) | |
| tree | a9d1c008e9fe324f95a03e464961a855de388026 /arch/powerpc/kernel/head_8xx.S | |
| parent | 9e0967572e5a0e8c887b2d71192bdad342e8a3dd (diff) | |
| download | linux-4e591f3c0a618b8230a37bfff64b59e76374f2e5.tar.bz2 | |
powerpc/8xx: Fixing issue with CONFIG_PIN_TLB
Activating CONFIG_PIN_TLB is supposed to pin the IMMR and the first
three 8Mbytes pages. But the setting of MD_CTR to a pinnable entry was
missing before the pinning of the third 8Mb page. As the index is
decremented module 28 (MD_RSV4D is set) after every DTLB update, the
third 8Mbytes page was not pinned.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'arch/powerpc/kernel/head_8xx.S')
| -rw-r--r-- | arch/powerpc/kernel/head_8xx.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index 1b92a97b1b04..7ee876d2adb5 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -858,6 +858,9 @@ initial_mmu: addis r11, r11, 0x0080 /* Add 8M */ mtspr SPRN_MD_RPN, r11 + addi r10, r10, 0x0100 + mtspr SPRN_MD_CTR, r10 + addis r8, r8, 0x0080 /* Add 8M */ mtspr SPRN_MD_EPN, r8 mtspr SPRN_MD_TWC, r9 |