Changeset a385489 in rtems for cpukit/score/cpu/nios2

2011-08-18 Chris Johns <chrisj@…>

• cpu.c: Fix the ISR get level for the IIC. Make _CPU_Context_Initialize a function rather than inlined.
• cpu_asm.S: Do not enable interrupt on return, rather resume the state on entry to the ISR.
• irq.c, nios2/nios2-iic-low-level.S: Change the ISR handler so the ipending decoding is in C and within the interrupt context. This is usable with the Altera HAL directly.
• rtems/score/cpu.h: Add ienable and ipending interfaces. Add some comments. Remove _CPU_Context_Initialize.