diff options
| author | Anatolij Gustschin <agust@denx.de> | 2008-04-17 18:15:27 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2008-04-18 00:48:02 -0700 |
| commit | accf7355767dc7f6b85d88bb1c75c9d95e84ba5b (patch) | |
| tree | d57d97546f1c3c9db1ffdd19ff57522ee06e2218 /cpu/ppc4xx/tlb.c | |
| parent | 43c509254fab375c49936498da944658117ed07c (diff) | |
ppc4xx: Fix crash on sequoia with cache enabled
Currently U-Boot crashes on sequoia board in CPU POST if
cache is enabled (CONFIG_4xx_DCACHE defined). The cache
won't be disabled by change_tlb before CPU POST because
there is an insufficient adress range check since
CFG_MEM_TOP_HIDE was introduced. This patch tries to fix
this problem.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Diffstat (limited to 'cpu/ppc4xx/tlb.c')
| -rw-r--r-- | cpu/ppc4xx/tlb.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/cpu/ppc4xx/tlb.c b/cpu/ppc4xx/tlb.c index 2bfcba19b..f44822dba 100644 --- a/cpu/ppc4xx/tlb.c +++ b/cpu/ppc4xx/tlb.c @@ -149,7 +149,9 @@ void change_tlb(u32 vaddr, u32 size, u32 tlb_word2_i_value) /* * Now check the end-address if it's in the range */ - if ((tlb_vaddr + tlb_size - 1) <= (vaddr + size - 1)) { + if (((tlb_vaddr + tlb_size - 1) <= (vaddr + size - 1)) || + ((tlb_vaddr < (vaddr + size - 1)) && + ((tlb_vaddr + tlb_size - 1) > (vaddr + size - 1)))) { /* * Found a TLB in the range. * Change cache attribute in tlb2 word. |