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| author | Mike Frysinger <vapier@gentoo.org> | 2011-06-26 14:07:17 -0400 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2011-07-23 01:18:27 -0400 |
| commit | 4705a25c06c99081c1ec2f48561e37738e566ebd (patch) | |
| tree | f96ac62119930059306f82345c26e5350e84f42f | |
| parent | 01f8e34c9855e5aa4f56a73b8d5ea8f7613dbb7e (diff) | |
| download | op-kernel-dev-4705a25c06c99081c1ec2f48561e37738e566ebd.zip op-kernel-dev-4705a25c06c99081c1ec2f48561e37738e566ebd.tar.gz | |
Blackfin: dpmc: optimize SIC_IWR programming a little
For parts with more than one SIC_IWR, we can optimize the writing
a little bit using better Blackfin insns.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| -rw-r--r-- | arch/blackfin/mach-common/dpmc_modes.S | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/arch/blackfin/mach-common/dpmc_modes.S b/arch/blackfin/mach-common/dpmc_modes.S index 6ecc64e..3fba05c 100644 --- a/arch/blackfin/mach-common/dpmc_modes.S +++ b/arch/blackfin/mach-common/dpmc_modes.S @@ -239,21 +239,18 @@ ENDPROC(_unset_dram_srfs) ENTRY(_set_sic_iwr) #ifdef SIC_IWR0 - P0.H = hi(SIC_IWR0); - P0.L = lo(SIC_IWR0); - P1.H = hi(SIC_IWR1); - P1.L = lo(SIC_IWR1); - [P1] = R1; + P0.H = hi(SYSMMR_BASE); + P0.L = lo(SYSMMR_BASE); + [P0 + (SIC_IWR0 - SYSMMR_BASE)] = R0; + [P0 + (SIC_IWR1 - SYSMMR_BASE)] = R1; # ifdef SIC_IWR2 - P1.H = hi(SIC_IWR2); - P1.L = lo(SIC_IWR2); - [P1] = R2; + [P0 + (SIC_IWR2 - SYSMMR_BASE)] = R2; # endif #else P0.H = hi(SIC_IWR); P0.L = lo(SIC_IWR); -#endif [P0] = R0; +#endif SSYNC; RTS; |
