source: rtems/bsps/powerpc/mpc8260ads/start/cp.c @ 753873e5

Last change on this file since 753873e5 was 753873e5, checked in by Joel Sherrill <joel@…>, on 03/22/22 at 20:03:30

Update Eric Norum contact info and start to normalize file headers
  • Property mode set to 100644
File size: 708 bytes
Line 
1/*
2 * cp.c
3 *
4 * MPC8xx CPM RISC Communication Processor routines.
5 *
6 * Based on code (alloc860.c in eth_comm port) by
7 * Jay Monkman (jmonkman@frasca.com),
8 * which, in turn, is based on code by
9 * Eric Norum <eric.norum.ca>
10 *
11 * Modifications by Darlene Stewart (Darlene.Stewart@iit.nrc.ca):
12 * Copyright (c) 1999, National Research Council of Canada
13 */
14
15#include <rtems.h>
16#include <mpc8260.h>
17#include <mpc8260/cpm.h>
18
19/*
20 * Send a command to the CPM RISC processer
21 */
22
23void m8xx_cp_execute_cmd( uint32_t   command )
24{
25  uint16_t   lvl;
26
27  rtems_interrupt_disable(lvl);
28  while (m8260.cpcr & M8260_CR_FLG) {
29    continue;
30  }
31
32  m8260.cpcr = command | M8260_CR_FLG;
33  rtems_interrupt_enable (lvl);
34}
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