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| author | Valentine Barshak <vbarshak@ru.mvista.com> | 2007-09-21 16:50:09 +0200 |
|---|---|---|
| committer | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2007-10-03 14:20:18 +0200 |
| commit | 340ffd267c85fc28da7cfd681b177c816af800cf (patch) | |
| tree | b9a757d6d0566420fe103c02d60f2b520e5c3880 /arch/powerpc/kernel/cputable.c | |
| parent | [POWERPC] 4xx: Move 440EP(x) FPU setup from head_44x to cpu_setup_4xx (diff) | |
| download | linux-340ffd267c85fc28da7cfd681b177c816af800cf.tar.xz linux-340ffd267c85fc28da7cfd681b177c816af800cf.zip | |
[POWERPC] 4xx: 440EPx/GRx incorrect write to DDR SDRAM errata workaround
Add a workaround for PowerPC 440EPx/GRx incorrect write to
DDR SDRAM errata. Data can be written to wrong address
in SDRAM when write pipelining enabled on plb0. We disable
it in the cpu_setup for these processors at early init.
Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'arch/powerpc/kernel/cputable.c')
| -rw-r--r-- | arch/powerpc/kernel/cputable.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 94d98190e19a..b03a442b7888 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -33,6 +33,7 @@ EXPORT_SYMBOL(cur_cpu_spec); #ifdef CONFIG_PPC32 extern void __setup_cpu_440ep(unsigned long offset, struct cpu_spec* spec); extern void __setup_cpu_440epx(unsigned long offset, struct cpu_spec* spec); +extern void __setup_cpu_440grx(unsigned long offset, struct cpu_spec* spec); extern void __setup_cpu_603(unsigned long offset, struct cpu_spec* spec); extern void __setup_cpu_604(unsigned long offset, struct cpu_spec* spec); extern void __setup_cpu_750(unsigned long offset, struct cpu_spec* spec); @@ -1146,6 +1147,8 @@ static struct cpu_spec cpu_specs[] = { .cpu_user_features = COMMON_USER_BOOKE, .icache_bsize = 32, .dcache_bsize = 32, + .cpu_setup = __setup_cpu_440grx, + .platform = "ppc440", }, { /* 440GP Rev. B */ .pvr_mask = 0xf0000fff, |