Title: [6542] trunk/arch/blackfin/kernel/early_printk.c: use a for loop to program EVTs as gcc will turn it into a hardware loop -- much faster and smaller
- Revision
- 6542
- Author
- vapier
- Date
- 2009-06-02 19:33:31 -0500 (Tue, 02 Jun 2009)
Log Message
use a for loop to program EVTs as gcc will turn it into a hardware loop -- much faster and smaller
Modified Paths
Diff
Modified: trunk/arch/blackfin/kernel/early_printk.c (6541 => 6542)
--- trunk/arch/blackfin/kernel/early_printk.c 2009-06-02 23:15:21 UTC (rev 6541)
+++ trunk/arch/blackfin/kernel/early_printk.c 2009-06-03 00:33:31 UTC (rev 6542)
@@ -178,25 +178,15 @@
asmlinkage void __init init_early_exception_vectors(void)
{
+ u32 evt;
SSYNC();
/* cannot program in software:
* evt0 - emulation (jtag)
* evt1 - reset
*/
- bfin_write_EVT2(early_trap);
- bfin_write_EVT3(early_trap);
- bfin_write_EVT5(early_trap);
- bfin_write_EVT6(early_trap);
- bfin_write_EVT7(early_trap);
- bfin_write_EVT8(early_trap);
- bfin_write_EVT9(early_trap);
- bfin_write_EVT10(early_trap);
- bfin_write_EVT11(early_trap);
- bfin_write_EVT12(early_trap);
- bfin_write_EVT13(early_trap);
- bfin_write_EVT14(early_trap);
- bfin_write_EVT15(early_trap);
+ for (evt = EVT2; evt <= EVT15; evt += 4)
+ bfin_write32(evt, early_trap);
CSYNC();
/* Set all the return from interrupt, exception, NMI to a known place
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