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2000-10-24 Alan Cudmore <alanc@linuxstart.com> and

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Joel Sherrill <joel@OARcorp.com>

	* This is a major reworking of the mips64orion port to use
	gcc predefines as much as possible and a big push to multilib
	the mips port.  The mips64orion port was copied/renamed to mips
	to be more like other GNU tools.  Alan did most of the technical
	work of determining how to map old macro names used by the mips64orion
	port to standard compiler macro definitions.  Joel did the merge
	with CVS magic to keep individual file history and did the BSP
	modifications. Details follow:
	* console/led.S: Switch from using <idtmon.h> to <asm.h>.
	* console/start.S: Switch from using <idtmon.h> to <asm.h>. Added
	define of PMON stacksize.
	* console/idtmem.S: Switch from using <idtmon.h> to <asm.h>.  Also
	reworked conditionals to use gcc predefines.
	* console/idttlb.S: Ditto.
This commit is contained in:
Joel Sherrill
2000-10-24 21:50:37 +00:00
parent fda47cd1b9
commit 86748ff7ed
5 changed files with 48 additions and 24 deletions
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18
c/src/lib/libbsp/mips/p4000/ChangeLog
View File

@@ -1,3 +1,21 @@
2000-10-24 Alan Cudmore <alanc@linuxstart.com> and
Joel Sherrill <joel@OARcorp.com>
* This is a major reworking of the mips64orion port to use
gcc predefines as much as possible and a big push to multilib
the mips port. The mips64orion port was copied/renamed to mips
to be more like other GNU tools. Alan did most of the technical
work of determining how to map old macro names used by the mips64orion
port to standard compiler macro definitions. Joel did the merge
with CVS magic to keep individual file history and did the BSP
modifications. Details follow:
* console/led.S: Switch from using <idtmon.h> to <asm.h>.
* console/start.S: Switch from using <idtmon.h> to <asm.h>. Added
define of PMON stacksize.
* console/idtmem.S: Switch from using <idtmon.h> to <asm.h>. Also
reworked conditionals to use gcc predefines.
* console/idttlb.S: Ditto.
2000-09-04 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
* console/Makefile.am, liblnk/Makefile.am, start/Makefile.am,

2
c/src/lib/libbsp/mips/p4000/console/led.S
View File

@@ -3,8 +3,8 @@
*/
#include <iregdef.h>
#include <idtmon.h>
#include <idtcpu.h>
#include <asm.h>
FRAME(mips_leddisplay,sp,0,ra)

8
c/src/lib/libbsp/mips/p4000/start/start.S
View File

@@ -33,7 +33,7 @@ LICENSED MATERIAL - PROGRAM PROPERTY OF IDT
**************************************************************************/
#include <iregdef.h>
#include <idtcpu.h>
#include <idtmon.h>
#include <asm.h>
.extern _fbss,4 /* this is defined by the linker */
@@ -212,6 +212,12 @@ FRAME(start,sp,0,ra)
#endif
/*
* P_STACKSIZE is the size of the Prom Stack.
* the prom stack grows downward
*/
#define P_STACKSIZE 0x2000 /* sets stack size to 8k */
/**************************************************************************
**

16
c/src/lib/libbsp/mips/p4000/startup/idtmem.S
View File

@@ -40,7 +40,7 @@ LICENSED MATERIAL - PROGRAM PROPERTY OF IDT
#include <iregdef.h>
#include <idtcpu.h>
#include <idtmon.h>
#include <asm.h>
.data
mem_size:
@@ -48,14 +48,14 @@ mem_size:
dcache_size:
.word 0
icache_size:
#if defined(CPU_R3000)
#if __mips == 1
.word MINCACHE
#endif
#if defined(CPU_R4000)
#if __mips == 3
.word 0
#endif
#if defined(CPU_R4000)
#if __mips == 3
.data
scache_size:
.word 0
@@ -70,7 +70,7 @@ scache_linesize:
.text
#if defined (CPU_R3000)
#if __mips == 1
#define CONFIGFRM ((2*4)+4)
/*************************************************************************
@@ -402,9 +402,9 @@ FRAME(get_mem_conf,sp,0,ra)
j ra
ENDFRAME(get_mem_conf)
#endif /* defined CPU_R3000 */
#endif /* __mips == 1 */
#if defined(CPU_R4000)
#if __mips == 3
#define LEAF(label) FRAME(label,sp,0,ra)
#define XLEAF(label) \
.globl label ; \
@@ -922,7 +922,7 @@ FRAME(get_mem_conf,sp,0,ra)
ENDFRAME(get_mem_conf)
#endif /* defined(CPU_R4000) */
#endif /* __mips == 3 */
/*
* void set_mem_size (mem_size)

28
c/src/lib/libbsp/mips/p4000/startup/idttlb.S
View File

@@ -32,12 +32,12 @@ LICENSED MATERIAL - PROGRAM PROPERTY OF IDT
/* 950308: Ketan patched a few tlb functions that would not have worked.*/
#include <iregdef.h>
#include <idtcpu.h>
#include <idtmon.h>
#include <asm.h>
.text
#if defined(CPU_R3000)
#if __mips == 1
/*
** ret_tlblo -- returns the 'entrylo' contents for the TLB
** 'c' callable - as ret_tlblo(index) - where index is the
@@ -64,7 +64,7 @@ FRAME(ret_tlblo,sp,0,ra)
.set reorder
ENDFRAME(ret_tlblo)
#endif
#if defined(CPU_R4000)
#if __mips == 3
/*
** ret_tlblo[01] -- returns the 'entrylo' contents for the TLB
** 'c' callable - as ret_tlblo(index) - where index is the
@@ -142,7 +142,7 @@ ENDFRAME(ret_tlbwired)
** index
*/
FRAME(ret_tlbhi,sp,0,ra)
#if defined(CPU_R3000)
#if __mips == 1
.set noreorder
mfc0 t0,C0_SR # save sr
nop
@@ -161,7 +161,7 @@ FRAME(ret_tlbhi,sp,0,ra)
nop
.set reorder
#endif
#if defined(CPU_R4000)
#if __mips == 3
mfc0 t0,C0_SR # save sr
mtc0 zero,C0_SR # disable interrupts
mfc0 t1,C0_TLBHI # save current pid
@@ -184,7 +184,7 @@ ENDFRAME(ret_tlbhi)
** ret_tlbpid() -- return tlb pid contained in the current entry hi
*/
FRAME(ret_tlbpid,sp,0,ra)
#if defined(CPU_R3000)
#if __mips == 1
.set noreorder
mfc0 v0,C0_TLBHI # fetch tlb high
nop
@@ -194,7 +194,7 @@ FRAME(ret_tlbpid,sp,0,ra)
nop
.set reorder
#endif
#if defined(CPU_R4000)
#if __mips == 3
mfc0 v0,C0_TLBHI # to return value
nop
and v0,TLBHI_PIDMASK
@@ -214,7 +214,7 @@ ENDFRAME(ret_tlbpid)
** returns an index value (0-63) if successful -1 -f not
*/
FRAME(tlbprobe,sp,0,ra)
#if defined(CPU_R3000)
#if __mips == 1
.set noreorder
mfc0 t0,C0_SR /* fetch status reg */
and a0,TLBHI_VPNMASK /* isolate just the vpn */
@@ -240,7 +240,7 @@ FRAME(tlbprobe,sp,0,ra)
nop
.set reorder
#endif
#if defined(CPU_R4000)
#if __mips == 3
mfc0 t0,C0_SR # save sr
mtc0 zero,C0_SR # disable interrupts
mfc0 t1,C0_TLBHI # save current pid
@@ -269,7 +269,7 @@ ENDFRAME(tlbprobe)
** resettlb(index) Invalidate the TLB entry specified by index
*/
FRAME(resettlb,sp,0,ra)
#if defined(CPU_R3000)
#if __mips == 1
.set noreorder
mfc0 t0,C0_TLBHI # fetch the current hi
mfc0 v0,C0_SR # fetch the status reg.
@@ -289,7 +289,7 @@ FRAME(resettlb,sp,0,ra)
nop
.set reorder
#endif
#if defined(CPU_R4000)
#if __mips == 3
li t2,K0BASE&TLBHI_VPN2MASK
mfc0 t0,C0_TLBHI # save current TLBHI
mfc0 v0,C0_SR # save SR and disable interrupts
@@ -311,7 +311,7 @@ FRAME(resettlb,sp,0,ra)
#endif
ENDFRAME(resettlb)
#if defined(CPU_R3000)
#if __mips == 1
/*
** Setup TLB entry
**
@@ -340,8 +340,8 @@ FRAME(map_tlb,sp,0,ra)
nop
.set reorder
ENDFRAME(map_tlb)
#endif
#if defined(CPU_R4000)
#endif
#if __mips == 3
/*
** Setup R4000 TLB entry
**