path: root/cpukit/score
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authorJoel Sherrill <>1999-04-07 15:57:05 +0000
committerJoel Sherrill <>1999-04-07 15:57:05 +0000
commit3084de251365100266522ed0166a2aa2e3cdc714 (patch)
tree88c17ba84bdb223033fb5f441e417f8aef4e0837 /cpukit/score
parentchanged version to 19990406 (diff)
MPC821 support and PPC patches from Andrew Bray <>:
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.
Diffstat (limited to 'cpukit/score')
1 files changed, 2 insertions, 2 deletions
diff --git a/cpukit/score/cpu/powerpc/rtems/score/cpu.h b/cpukit/score/cpu/powerpc/rtems/score/cpu.h
index 42d1b59bcd..0bb28110d4 100644
--- a/cpukit/score/cpu/powerpc/rtems/score/cpu.h
+++ b/cpukit/score/cpu/powerpc/rtems/score/cpu.h
@@ -474,7 +474,7 @@ typedef struct {
void (*spurious_handler)(unsigned32 vector, CPU_Interrupt_frame *);
boolean exceptions_in_RAM; /* TRUE if in RAM */
-#if (defined(ppc403) || defined(mpc860))
+#if (defined(ppc403) || defined(mpc860) || defined(mpc821))
unsigned32 serial_per_sec; /* Serial clocks per second */
boolean serial_external_clock;
boolean serial_xon_xoff;
@@ -485,7 +485,7 @@ typedef struct {
boolean timer_internal_clock; /* TRUE, when timer runs with CPU clk */
-#if (defined(mpc860))
+#if (defined(mpc860) || defined(mpc821))
unsigned32 clock_speed; /* Speed of CPU in Hz */
} rtems_cpu_table;