MPC821 support and PPC patches from Andrew Bray <andy@madhouse.demon.co.uk>:

  In c/src/exec/score/cpu/powerpc/rtems/score/ppc.h:

    A lot of hardware interrupts were omitted.  Patch enclosed.
    I have also added the 821.

  In c/src/exec/score/cpu/powerpc/rtems/score/cpu.h:

    My patch adds the 821.

  In c/src/exec/score/cpu/powerpc/cpu.c:

    I have added the MPC821, and also fixed up for the missing hardware
    interrupts.  It is also inconsistent with
    c/src/lib/libcpu/powerpc/mpc860/vectors/vectors.S.  This has been fixed.


  In c/src/lib/libcpu/powerpc/mpc860/vectors/vectors.S:

    Fixed an inconsistency with cpu.c.

    I also include some new files to go with the above patches.  These are the
    cpu library rtems-19990331/c/src/lib/libcpu/powerpc/mpc821/* and
    c/src/exec/score/cpu/powerpc/mpc821.h which are minor modifications of
    the 860 equivalents.

  Other comments:

    The various accesses to the DPRAM on the 860 are done with a linktime
    symbol. This could be done dynamically at run time by reading the immr
    register, and masking off the lower 16 bits.  This takes the same amount
    of time as loading an address constant, and the same number of
    instructions as well (2).

    In c/src/lib/libcpu/powerpc/mpc860/console-generic/console-generic.c:

      This will silently fail if you attempt to use SCC1.  This is only relevant
      if you are not using SCC1 for ethernet.

      This file also sets one of port B output pins for each port.  This is NOT
      generic, it should be in the BSP specific console driver.

1 files changed, 44 insertions, 0 deletions

diff --git a/c/src/lib/libcpu/powerpc/mpc821/include/console.h b/c/src/lib/libcpu/powerpc/mpc821/include/console.h
new file mode 100644
index 0000000000..8885abeadc
--- /dev/null
+++ b/c/src/lib/libcpu/powerpc/mpc821/include/console.h
@@ -0,0 +1,44 @@
+/*
+ *  $Id$
+ */
+
+#ifndef _M821_CONSOLE_H_
+#define _M821_CONSOLE_H_
+
+#include <rtems/libio.h>
+
+int m821_smc_set_attributes(int, const struct termios*);
+int m821_scc_set_attributes(int, const struct termios*);
+void m821_scc_initialize(int);
+void m821_smc_initialize(int);
+int m821_char_poll_read(int);
+int m821_char_poll_write(int, const char*, int);
+rtems_isr m821_scc1_console_interrupt_handler(rtems_vector_number);
+rtems_isr m821_scc2_console_interrupt_handler(rtems_vector_number);
+rtems_isr m821_smc1_console_interrupt_handler(rtems_vector_number);
+rtems_isr m821_smc2_console_interrupt_handler(rtems_vector_number);
+int m821_buf_poll_read(int, char**);
+int m821_buf_poll_write(int, char*, int);
+void m821_console_initialize(void);
+rtems_device_driver m821_console_read(rtems_device_major_number,
+				      rtems_device_minor_number,
+				      void*);
+rtems_device_driver m821_console_write(rtems_device_major_number,
+				       rtems_device_minor_number,
+				       void*);
+
+
+typedef struct Buf_t_ {
+  struct Buf_t_ *next;
+  volatile char *buf;
+  volatile int   len;
+  int   pos;
+} Buf_t;
+
+#define SMC1_MINOR    0
+#define SMC2_MINOR    1
+#define SCC1_MINOR    2
+#define SCC2_MINOR    3
+
+
+#endif