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2000-11-30 Joel Sherrill <joel@OARcorp.com>

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* README: Updated to reflect current status.  Misaligned reference
	during initialization may be compiler problem.
	* console/console-io.c: Added support for printk().
	* startup/linkcmds: Reserve 512K for RTEMS Workspace.
This commit is contained in:
Joel Sherrill
2000-11-30 14:10:38 +00:00
parent 43b6f757ce
commit c1a24fbea6
4 changed files with 33 additions and 11 deletions
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7
c/src/lib/libbsp/mips/jmr3904/ChangeLog
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@@ -1,3 +1,10 @@
2000-11-30 Joel Sherrill <joel@OARcorp.com>
* README: Updated to reflect current status. Misaligned reference
during initialization may be compiler problem.
* console/console-io.c: Added support for printk().
* startup/linkcmds: Reserve 512K for RTEMS Workspace.
2000-11-27 Joel Sherrill <joel@OARcorp.com>
* startup/linkcmds: Fix typo and add extra 0 to base address.

28
c/src/lib/libbsp/mips/jmr3904/README
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@@ -8,16 +8,24 @@ Simulator Invocation
====================
The following is not 100% correct since it does not work. :)
target sim --board=jmr3904pal --memory-region 0xffff8000,0x900 \
--memory-region 0xffffe000,0x4 --memory-region 0xb2100000,0x4
--memory-region 0x8800000,0x100000 -memory-region 0x80000000,0x40000 \
--memory-region 0xfffff300,0x10
target sim --board=jmr3904pal --memory-region 0x8800000,0x100000
Status
======
This BSP is not working. It gets to the point where the
console_outbyte_polled() routine is called during printf
and it locks up checking for a status bit. This is probably
a simulator initialization issue related to the setup command.
As of 25 Nov 2000, email was sent to the gdb and newlib maintainers
asking for advice.
+ printk() works and is being called from bsp_start as prove.
+ There appears to be a compilation problem in _Thread_Handler_initialization
where _Thread_Ready_chain[1] is only 1 byte -- not 12 from
_Thread_Ready_chain[0]. I am throwing this to the RTEMS list
first before reporting it.
Made it to bsp_start
mips-core: 4 byte write to unaligned address 0x8803bb01 at 0x8800d83c
Program received signal SIGBUS, Bus error.
0x8800d83c in _Chain_Initialize_empty (the_chain=0x8803bb01)
at ../../../../../jmr3904/lib/include/rtems/score/chain.inl:222
222 the_chain->first = _Chain_Tail( the_chain );
(gdb) q

7
c/src/lib/libbsp/mips/jmr3904/console/console-io.c
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@@ -121,3 +121,10 @@ int console_inbyte_nonblocking(
return -1;
}
#include <bspIo.h>
void JMR3904_output_char(char c) { console_outbyte_polled( 0, c ); }
BSP_output_char_function_type BSP_output_char = JMR3904_output_char;
BSP_polling_getchar_function_type BSP_poll_char = NULL;

2
c/src/lib/libbsp/mips/jmr3904/startup/linkcmds
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@@ -77,7 +77,7 @@ SECTIONS
. += _StackSize;
_clear_end = .;
WorkspaceBase = .;
. += 64K; /* reserve some memory for workspace */
. += 512K; /* reserve some memory for workspace */
HeapBase = .;
. += HeapSize; /* reserve some memory for heap */
}