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Merge with /home/stefan/git/u-boot/denx-440-exceptions

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master
Stefan Roese 18 years ago
parent b765ffb773 efa35cf12d
commit b7c3e93105
21 changed files with 319 additions and 267 deletions
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  1. 10
      cpu/ppc4xx/config.mk
  2. 329
      cpu/ppc4xx/start.S
  3. 107
      cpu/ppc4xx/traps.c
  4. 15
      include/asm-ppc/processor.h
  5. 1
      include/configs/CPCI440.h
  6. 1
      include/configs/KAREF.h
  7. 1
      include/configs/METROBOX.h
  8. 1
      include/configs/alpr.h
  9. 1
      include/configs/bamboo.h
  10. 1
      include/configs/ebony.h
  11. 2
      include/configs/katmai.h
  12. 1
      include/configs/ocotea.h
  13. 1
      include/configs/p3p440.h
  14. 1
      include/configs/pcs440ep.h
  15. 1
      include/configs/sequoia.h
  16. 1
      include/configs/taishan.h
  17. 1
      include/configs/yosemite.h
  18. 9
      include/ppc405.h
  19. 5
      include/ppc440.h
  20. 1
      include/ppc4xx.h
  21. 96
      include/ppc_asm.tmpl

10
cpu/ppc4xx/config.mk
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@ -22,5 +22,13 @@
#
PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -fno-strict-aliasing
PLATFORM_CPPFLAGS += -DCONFIG_4xx -ffixed-r2 -ffixed-r29 -mstring -msoft-float
PLATFORM_CPPFLAGS += -DCONFIG_4xx -ffixed-r2 -ffixed-r29 -mstring -Wa,-m405 -mcpu=405 -msoft-float
cfg=$(shell grep configs $(TOPDIR)/include/config.h | sed 's/.*<\(configs.*\)>/\1/')
is440=$(shell grep CONFIG_440 $(TOPDIR)/include/$(cfg))
ifneq (,$(findstring CONFIG_440,$(is440)))
PLATFORM_CPPFLAGS += -Wa,-m440 -mcpu=440
else
PLATFORM_CPPFLAGS += -Wa,-m405 -mcpu=405
endif

329
cpu/ppc4xx/start.S
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@ -294,11 +294,13 @@ skip_debug_init:
mtspr ivor7,r1 /* Floating point unavailable */
li r1,0x0c00
mtspr ivor8,r1 /* System call */
li r1,0x1000
mtspr ivor10,r1 /* Decrementer (PIT for 440) */
li r1,0x1400
mtspr ivor13,r1 /* Data TLB error */
li r1,0x0a00
mtspr ivor9,r1 /* Auxiliary Processor unavailable */
li r1,0x0900
mtspr ivor10,r1 /* Decrementer */
li r1,0x1300
mtspr ivor13,r1 /* Data TLB error */
li r1,0x1400
mtspr ivor14,r1 /* Instr TLB error */
li r1,0x2000
mtspr ivor15,r1 /* Debug */
@ -503,11 +505,81 @@ version_string:
.ascii " (", __DATE__, " - ", __TIME__, ")"
.ascii CONFIG_IDENT_STRING, "\0"
/*
* Maybe this should be moved somewhere else because the current
* location (0x100) is where the CriticalInput Execption should be.
*/
. = EXC_OFF_SYS_RESET
.globl _start_of_vectors
_start_of_vectors:
/* Critical input. */
CRIT_EXCEPTION(0x100, CritcalInput, UnknownException)
#ifdef CONFIG_440
/* Machine check */
MCK_EXCEPTION(0x200, MachineCheck, MachineCheckException)
#else
CRIT_EXCEPTION(0x200, MachineCheck, MachineCheckException)
#endif /* CONFIG_440 */
/* Data Storage exception. */
STD_EXCEPTION(0x300, DataStorage, UnknownException)
/* Instruction Storage exception. */
STD_EXCEPTION(0x400, InstStorage, UnknownException)
/* External Interrupt exception. */
STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt)
/* Alignment exception. */
. = 0x600
Alignment:
EXCEPTION_PROLOG(SRR0, SRR1)
mfspr r4,DAR
stw r4,_DAR(r21)
mfspr r5,DSISR
stw r5,_DSISR(r21)
addi r3,r1,STACK_FRAME_OVERHEAD
li r20,MSR_KERNEL
rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
lwz r6,GOT(transfer_to_handler)
mtlr r6
blrl
.L_Alignment:
.long AlignmentException - _start + _START_OFFSET
.long int_return - _start + _START_OFFSET
/* Program check exception */
. = 0x700
ProgramCheck:
EXCEPTION_PROLOG(SRR0, SRR1)
addi r3,r1,STACK_FRAME_OVERHEAD
li r20,MSR_KERNEL
rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
lwz r6,GOT(transfer_to_handler)
mtlr r6
blrl
.L_ProgramCheck:
.long ProgramCheckException - _start + _START_OFFSET
.long int_return - _start + _START_OFFSET
#ifdef CONFIG_440
STD_EXCEPTION(0x800, FPUnavailable, UnknownException)
STD_EXCEPTION(0x900, Decrementer, DecrementerPITException)
STD_EXCEPTION(0xa00, APU, UnknownException)
#endif
STD_EXCEPTION(0xc00, SystemCall, UnknownException)
#ifdef CONFIG_440
STD_EXCEPTION(0x1300, DataTLBError, UnknownException)
STD_EXCEPTION(0x1400, InstructionTLBError, UnknownException)
#else
STD_EXCEPTION(0x1000, PIT, DecrementerPITException)
STD_EXCEPTION(0x1100, InstructionTLBMiss, UnknownException)
STD_EXCEPTION(0x1200, DataTLBMiss, UnknownException)
#endif
CRIT_EXCEPTION(0x2000, DebugBreakpoint, DebugException )
.globl _end_of_vectors
_end_of_vectors:
. = _START_OFFSET
#endif
.globl _start
_start:
@ -1017,107 +1089,6 @@ start_ram:
#ifndef CONFIG_NAND_SPL
/*****************************************************************************/
.globl _start_of_vectors
_start_of_vectors:
#if 0
/*TODO Fixup _start above so we can do this*/
/* Critical input. */
CRIT_EXCEPTION(0x100, CritcalInput, CritcalInputException)
#endif
/* Machine check */
CRIT_EXCEPTION(0x200, MachineCheck, MachineCheckException)
/* Data Storage exception. */
STD_EXCEPTION(0x300, DataStorage, UnknownException)
/* Instruction Storage exception. */
STD_EXCEPTION(0x400, InstStorage, UnknownException)
/* External Interrupt exception. */
STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt)
/* Alignment exception. */
. = 0x600
Alignment:
EXCEPTION_PROLOG
mfspr r4,DAR
stw r4,_DAR(r21)
mfspr r5,DSISR
stw r5,_DSISR(r21)
addi r3,r1,STACK_FRAME_OVERHEAD
li r20,MSR_KERNEL
rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
lwz r6,GOT(transfer_to_handler)
mtlr r6
blrl
.L_Alignment:
.long AlignmentException - _start + EXC_OFF_SYS_RESET
.long int_return - _start + EXC_OFF_SYS_RESET
/* Program check exception */
. = 0x700
ProgramCheck:
EXCEPTION_PROLOG
addi r3,r1,STACK_FRAME_OVERHEAD
li r20,MSR_KERNEL
rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
lwz r6,GOT(transfer_to_handler)
mtlr r6
blrl
.L_ProgramCheck:
.long ProgramCheckException - _start + EXC_OFF_SYS_RESET
.long int_return - _start + EXC_OFF_SYS_RESET
/* No FPU on MPC8xx. This exception is not supposed to happen.
*/
STD_EXCEPTION(0x800, FPUnavailable, UnknownException)
/* I guess we could implement decrementer, and may have
* to someday for timekeeping.
*/
STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
STD_EXCEPTION(0xc00, SystemCall, UnknownException)
STD_EXCEPTION(0xd00, SingleStep, UnknownException)
STD_EXCEPTION(0xe00, Trap_0e, UnknownException)
STD_EXCEPTION(0xf00, Trap_0f, UnknownException)
/* On the MPC8xx, this is a software emulation interrupt. It occurs
* for all unimplemented and illegal instructions.
*/
STD_EXCEPTION(0x1000, PIT, PITException)
STD_EXCEPTION(0x1100, InstructionTLBMiss, UnknownException)
STD_EXCEPTION(0x1200, DataTLBMiss, UnknownException)
STD_EXCEPTION(0x1300, InstructionTLBError, UnknownException)
STD_EXCEPTION(0x1400, DataTLBError, UnknownException)
STD_EXCEPTION(0x1500, Reserved5, UnknownException)
STD_EXCEPTION(0x1600, Reserved6, UnknownException)
STD_EXCEPTION(0x1700, Reserved7, UnknownException)
STD_EXCEPTION(0x1800, Reserved8, UnknownException)
STD_EXCEPTION(0x1900, Reserved9, UnknownException)
STD_EXCEPTION(0x1a00, ReservedA, UnknownException)
STD_EXCEPTION(0x1b00, ReservedB, UnknownException)
STD_EXCEPTION(0x1c00, DataBreakpoint, UnknownException)
STD_EXCEPTION(0x1d00, InstructionBreakpoint, UnknownException)
STD_EXCEPTION(0x1e00, PeripheralBreakpoint, UnknownException)
STD_EXCEPTION(0x1f00, DevPortBreakpoint, UnknownException)
CRIT_EXCEPTION(0x2000, DebugBreakpoint, DebugException )
.globl _end_of_vectors
_end_of_vectors:
. = 0x2100
/*
* This code finishes saving the registers to the exception frame
* and jumps to the appropriate handler for the exception.
@ -1133,28 +1104,12 @@ transfer_to_handler:
SAVE_4GPRS(8, r21)
SAVE_8GPRS(12, r21)
SAVE_8GPRS(24, r21)
#if 0
andi. r23,r23,MSR_PR
mfspr r23,SPRG3 /* if from user, fix up tss.regs */
beq 2f
addi r24,r1,STACK_FRAME_OVERHEAD
stw r24,PT_REGS(r23)
2: addi r2,r23,-TSS /* set r2 to current */
tovirt(r2,r2,r23)
#endif
mflr r23
andi. r24,r23,0x3f00 /* get vector offset */
stw r24,TRAP(r21)
li r22,0
stw r22,RESULT(r21)
mtspr SPRG2,r22 /* r1 is now kernel sp */
#if 0
addi r24,r2,TASK_STRUCT_SIZE /* check for kernel stack overflow */
cmplw 0,r1,r2
cmplw 1,r1,r24
crand 1,1,4
bgt stack_ovf /* if r2 < r1 < r2+TASK_STRUCT_SIZE */
#endif
lwz r24,0(r23) /* virtual address of handler */
lwz r23,4(r23) /* where to go when done */
mtspr SRR0,r24
@ -1215,16 +1170,64 @@ crit_return:
REST_GPR(31, r1)
lwz r2,_NIP(r1) /* Restore environment */
lwz r0,_MSR(r1)
mtspr 990,r2 /* SRR2 */
mtspr 991,r0 /* SRR3 */
mtspr csrr0,r2
mtspr csrr1,r0
lwz r0,GPR0(r1)
lwz r2,GPR2(r1)
lwz r1,GPR1(r1)
SYNC
rfci
/* Cache functions.
*/
#ifdef CONFIG_440
mck_return:
mfmsr r28 /* Disable interrupts */
li r4,0
ori r4,r4,MSR_EE
andc r28,r28,r4
SYNC /* Some chip revs need this... */
mtmsr r28
SYNC
lwz r2,_CTR(r1)
lwz r0,_LINK(r1)
mtctr r2
mtlr r0
lwz r2,_XER(r1)
lwz r0,_CCR(r1)
mtspr XER,r2
mtcrf 0xFF,r0
REST_10GPRS(3, r1)
REST_10GPRS(13, r1)
REST_8GPRS(23, r1)
REST_GPR(31, r1)
lwz r2,_NIP(r1) /* Restore environment */
lwz r0,_MSR(r1)
mtspr mcsrr0,r2
mtspr mcsrr1,r0
lwz r0,GPR0(r1)
lwz r2,GPR2(r1)
lwz r1,GPR1(r1)
SYNC
rfmci
#endif /* CONFIG_440 */
/*
* Cache functions.
*
* NOTE: currently the 440s run with dcache _disabled_ once relocated to DRAM,
* although for some cache-ralated calls stubs have to be provided to satisfy
* symbols resolution.
*
*/
#ifdef CONFIG_440
.globl dcache_disable
dcache_disable:
blr
.globl dcache_status
dcache_status:
blr
#else
flush_dcache:
addis r9,r0,0x0002 /* set mask for EE and CE msr bits */
ori r9,r9,0x8000
@ -1303,24 +1306,13 @@ dcache_status:
mfdccr r3
srwi r3, r3, 31 /* >>31 => select bit 0 */
blr
#endif
.globl get_pvr
get_pvr:
mfspr r3, PVR
blr
#if !defined(CONFIG_440)
.globl wr_pit
wr_pit:
mtspr pit, r3
blr
#endif
.globl wr_tcr
wr_tcr:
mtspr tcr, r3
blr
/*------------------------------------------------------------------------------- */
/* Function: out16 */
/* Description: Output 16 bits */
@ -1518,7 +1510,7 @@ relocate_code:
* initialization, now running from RAM.
*/
addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET
addi r0, r10, in_ram - _start + _START_OFFSET
mtlr r0
blr /* NEVER RETURNS! */
@ -1588,7 +1580,7 @@ clear_bss:
*/
.globl trap_init
trap_init:
lwz r7, GOT(_start)
lwz r7, GOT(_start_of_vectors)
lwz r8, GOT(_end_of_vectors)
li r9, 0x100 /* reset vector always at 0x100 */
@ -1608,35 +1600,48 @@ trap_init:
/*
* relocate `hdlr' and `int_return' entries
*/
li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET
li r8, Alignment - _start + EXC_OFF_SYS_RESET
li r7, .L_MachineCheck - _start + _START_OFFSET
li r8, Alignment - _start + _START_OFFSET
2:
bl trap_reloc
addi r7, r7, 0x100 /* next exception vector */
addi r7, r7, 0x100 /* next exception vector */
cmplw 0, r7, r8
blt 2b
li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET
li r7, .L_Alignment - _start + _START_OFFSET
bl trap_reloc
li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET
li r7, .L_ProgramCheck - _start + _START_OFFSET
bl trap_reloc
li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET
li r8, SystemCall - _start + EXC_OFF_SYS_RESET
3:
bl trap_reloc
addi r7, r7, 0x100 /* next exception vector */
cmplw 0, r7, r8
blt 3b
#ifdef CONFIG_440
li r7, .L_FPUnavailable - _start + _START_OFFSET
bl trap_reloc
li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET
li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET
4:
bl trap_reloc
addi r7, r7, 0x100 /* next exception vector */
cmplw 0, r7, r8
blt 4b
li r7, .L_Decrementer - _start + _START_OFFSET
bl trap_reloc
li r7, .L_APU - _start + _START_OFFSET
bl trap_reloc
li r7, .L_InstructionTLBError - _start + _START_OFFSET
bl trap_reloc
li r7, .L_DataTLBError - _start + _START_OFFSET
bl trap_reloc
#else /* CONFIG_440 */
li r7, .L_PIT - _start + _START_OFFSET
bl trap_reloc
li r7, .L_InstructionTLBMiss - _start + _START_OFFSET
bl trap_reloc
li r7, .L_DataTLBMiss - _start + _START_OFFSET
bl trap_reloc
#endif /* CONFIG_440 */
li r7, .L_DebugBreakpoint - _start + _START_OFFSET
bl trap_reloc
#if !defined(CONFIG_440)
addi r7,r0,0x1000 /* set ME bit (Machine Exceptions) */

107
cpu/ppc4xx/traps.c
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@ -36,6 +36,8 @@
#include <command.h>
#include <asm/processor.h>
DECLARE_GLOBAL_DATA_PTR;
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
int (*debugger_exception_handler)(struct pt_regs *) = 0;
#endif
@ -45,8 +47,7 @@ extern unsigned long search_exception_table(unsigned long);
/* THIS NEEDS CHANGING to use the board info structure.
*/
#define END_OF_MEM 0x00400000
#define END_OF_MEM (gd->bd->bi_memstart + gd->bd->bi_memsize)
static __inline__ void set_tsr(unsigned long val)
{
@ -88,29 +89,29 @@ extern void do_bedbug_breakpoint(struct pt_regs *);
void
print_backtrace(unsigned long *sp)
{
int cnt = 0;
unsigned long i;
printf("Call backtrace: ");
while (sp) {
if ((uint)sp > END_OF_MEM)
break;
i = sp[1];
if (cnt++ % 7 == 0)
printf("\n");
printf("%08lX ", i);
if (cnt > 32) break;
sp = (unsigned long *)*sp;
}
printf("\n");
int cnt = 0;
unsigned long i;
printf("Call backtrace: ");
while (sp) {
if ((uint)sp > END_OF_MEM)
break;
i = sp[1];
if (cnt++ % 7 == 0)
printf("\n");
printf("%08lX ", i);
if (cnt > 32) break;
sp = (unsigned long *)*sp;
}
printf("\n");
}
void show_regs(struct pt_regs * regs)
{
int i;
printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n",
printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DEAR: %08lX\n",
regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar);
printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n",
regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0,
@ -139,14 +140,14 @@ _exception(int signr, struct pt_regs *regs)
{
show_regs(regs);
print_backtrace((unsigned long *)regs->gpr[1]);
panic("Exception in kernel pc %lx signal %d",regs->nip,signr);
panic("Exception");
}
void
MachineCheckException(struct pt_regs *regs)
{
unsigned long fixup;
unsigned long fixup, val;
/* Probing PCI using config cycles cause this exception
* when a device is not present. Catch it and return to
* the PCI exception handler.
@ -161,26 +162,50 @@ MachineCheckException(struct pt_regs *regs)
return;
#endif
printf("Machine check in kernel mode.\n");
printf("Machine Check Exception.\n");
printf("Caused by (from msr): ");
printf("regs %p ",regs);
switch( regs->msr & 0x000F0000) {
case (0x80000000>>12):
printf("Machine check signal - probably due to mm fault\n"
"with mmu off\n");
break;
case (0x80000000>>13):
printf("Transfer error ack signal\n");
break;
case (0x80000000>>14):
printf("Data parity signal\n");
break;
case (0x80000000>>15):
printf("Address parity signal\n");
break;
default:
printf("Unknown values in msr\n");
printf("regs %p ", regs);
val = get_esr();
#if !defined(CONFIG_440)
if (val& ESR_IMCP) {
printf("Instruction");
mtspr(ESR, val & ~ESR_IMCP);
} else
printf("Data");
printf(" machine check.\n");
#elif defined(CONFIG_440)
if (val& ESR_IMCP){
printf("Instruction Synchronous Machine Check exception\n");
mtspr(SPRN_ESR, val & ~ESR_IMCP);
}
else {
val = mfspr(MCSR);
if (val & MCSR_IB)
printf("Instruction Read PLB Error\n");
if (val & MCSR_DRB)
printf("Data Read PLB Error\n");
if (val & MCSR_DWB)
printf("Data Write PLB Error\n");
if (val & MCSR_TLBP)
printf("TLB Parity Error\n");
if (val & MCSR_ICP){
/*flush_instruction_cache(); */
printf("I-Cache Parity Error\n");
}
if (val & MCSR_DCSP)
printf("D-Cache Search Parity Error\n");
if (val & MCSR_DCFP)
printf("D-Cache Flush Parity Error\n");
if (val & MCSR_IMPE)
printf("Machine Check exception is imprecise\n");
/* Clear MCSR */
mtspr(SPRN_MCSR, val);
}
#endif
show_regs(regs);
print_backtrace((unsigned long *)regs->gpr[1]);
panic("machine check");
@ -224,7 +249,7 @@ ProgramCheckException(struct pt_regs *regs)
}
void
PITException(struct pt_regs *regs)
DecrementerPITException(struct pt_regs *regs)
{
/*
* Reset PIT interrupt

15
include/asm-ppc/processor.h
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@ -308,7 +308,7 @@
#define SPRN_SRR0 0x01A /* Save/Restore Register 0 */
#define SPRN_SRR1 0x01B /* Save/Restore Register 1 */
#define SPRN_SRR2 0x3DE /* Save/Restore Register 2 */
#define SPRN_SRR3 0x3DF /* Save/Restore Register 3 */
#define SPRN_SRR3 0x3DF /* Save/Restore Register 3 */
#ifdef CONFIG_BOOKE
#define SPRN_SVR 0x3FF /* System Version Register */
#else
@ -451,6 +451,17 @@
#define SPRN_PID1 0x279 /* Process ID Register 1 */
#define SPRN_PID2 0x27a /* Process ID Register 2 */
#define SPRN_MCSR 0x23c /* Machine Check Syndrome register */
#ifdef CONFIG_440
#define MCSR_MCS 0x80000000 /* Machine Check Summary */
#define MCSR_IB 0x40000000 /* Instruction PLB Error */
#define MCSR_DRB 0x20000000 /* Data Read PLB Error */
#define MCSR_DWB 0x10000000 /* Data Write PLB Error */
#define MCSR_TLBP 0x08000000 /* TLB Parity Error */
#define MCSR_ICP 0x04000000 /* I-Cache Parity Error */
#define MCSR_DCSP 0x02000000 /* D-Cache Search Parity Error */
#define MCSR_DCFP 0x01000000 /* D-Cache Flush Parity Error */
#define MCSR_IMPE 0x00800000 /* Imprecise Machine Check Exception */
#endif
#define ESR_ST 0x00800000 /* Store Operation */
#if defined(CONFIG_MPC86xx)
@ -544,6 +555,8 @@
#define SPRG7 SPRN_SPRG7
#define SRR0 SPRN_SRR0 /* Save and Restore Register 0 */
#define SRR1 SPRN_SRR1 /* Save and Restore Register 1 */
#define SRR2 SPRN_SRR2 /* Save and Restore Register 2 */
#define SRR3 SPRN_SRR3 /* Save and Restore Register 3 */
#define SVR SPRN_SVR /* System Version Register */
#define TBRL SPRN_TBRL /* Time Base Read Lower Register */
#define TBRU SPRN_TBRU /* Time Base Read Upper Register */

1
include/configs/CPCI440.h
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@ -33,6 +33,7 @@
*----------------------------------------------------------------------*/
#define CONFIG_CPCI440 1 /* Board is ebony */
#define CONFIG_440GP 1 /* Specifc GP support */
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_4xx 1 /* ... PPC4xx family */
#define CONFIG_BOARD_EARLY_INIT_F 1 /* Call board_early_init_f */
#undef CFG_DRAM_TEST /* Disable-takes long time! */

1
include/configs/KAREF.h
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@ -38,6 +38,7 @@
*----------------------------------------------------------------------*/
#define CONFIG_KAREF 1 /* Board is Kamino Ref Variant */
#define CONFIG_440GX 1 /* Specifc GX support */
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_4xx 1 /* ... PPC4xx family */
#define CONFIG_BOARD_EARLY_INIT_F 1 /* Call board_pre_init */
#define CONFIG_MISC_INIT_F 1 /* Call board misc_init_f */

1
include/configs/METROBOX.h
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@ -104,6 +104,7 @@
*----------------------------------------------------------------------*/
#define CONFIG_METROBOX 1 /* Board is Metrobox */
#define CONFIG_440GX 1 /* Specifc GX support */
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_4xx 1 /* ... PPC4xx family */
#define CONFIG_BOARD_EARLY_INIT_F 1 /* Call board_pre_init */
#define CONFIG_MISC_INIT_F 1 /* Call board misc_init_f */

1
include/configs/alpr.h
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@ -29,6 +29,7 @@
*----------------------------------------------------------------------*/
#define CONFIG_ALPR 1 /* Board is ebony */
#define CONFIG_440GX 1 /* Specifc GX support */
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_4xx 1 /* ... PPC4xx family */
#define CONFIG_BOARD_EARLY_INIT_F 1 /* Call board_pre_init */
#define CONFIG_LAST_STAGE_INIT 1 /* call last_stage_init() */

1
include/configs/bamboo.h
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@ -32,6 +32,7 @@
*----------------------------------------------------------------------*/
#define CONFIG_BAMBOO 1 /* Board is BAMBOO */
#define CONFIG_440EP 1 /* Specific PPC440EP support */
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_4xx 1 /* ... PPC4xx family */
#define CONFIG_SYS_CLK_FREQ 33333333 /* external freq to pll */

1
include/configs/ebony.h
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@ -32,6 +32,7 @@
*----------------------------------------------------------------------*/
#define CONFIG_EBONY 1 /* Board is ebony */
#define CONFIG_440GP 1 /* Specifc GP support */
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_4xx 1 /* ... PPC4xx family */
#define CONFIG_BOARD_EARLY_INIT_F 1 /* Call board_early_init_f */
#undef CFG_DRAM_TEST /* Disable-takes long time! */

2
include/configs/katmai.h
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@ -29,7 +29,7 @@
#ifndef __CONFIG_H
#define __CONFIG_H
//#define DEBUG
/*-----------------------------------------------------------------------
* High Level Configuration Options
*----------------------------------------------------------------------*/

1
include/configs/ocotea.h
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@ -41,6 +41,7 @@
*----------------------------------------------------------------------*/
#define CONFIG_OCOTEA 1 /* Board is ebony */
#define CONFIG_440GX 1 /* Specifc GX support */
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_4xx 1 /* ... PPC4xx family */
#define CONFIG_BOARD_EARLY_INIT_F 1 /* Call board_pre_init */
#undef CFG_DRAM_TEST /* Disable-takes long time! */

1
include/configs/p3p440.h
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@ -35,6 +35,7 @@
*----------------------------------------------------------------------*/
#define CONFIG_P3P440 1 /* Board is P3P440 */
#define CONFIG_440GP 1 /* Specifc GP support */
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_4xx 1 /* ... PPC4xx family */
#define CONFIG_BOARD_EARLY_INIT_F 1 /* Call board_early_init_f */
#define CONFIG_MISC_INIT_R 1 /* Call misc_init_r */

1
include/configs/pcs440ep.h
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@ -32,6 +32,7 @@
*----------------------------------------------------------------------*/
#define CONFIG_PCS440EP 1 /* Board is PCS440EP */
#define CONFIG_440EP 1 /* Specific PPC440EP support */
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_4xx 1 /* ... PPC4xx family */
#define CONFIG_SYS_CLK_FREQ 33333333 /* external freq to pll */

1
include/configs/sequoia.h
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@ -37,6 +37,7 @@
#else
#define CONFIG_440GRX 1 /* Specific PPC440GRx */
#endif
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_4xx 1 /* ... PPC4xx family */
/* Detect Sequoia PLL input clock automatically via CPLD bit */
#define CONFIG_SYS_CLK_FREQ ((in8(CFG_BCSR_BASE + 3) & 0x80) ? \

1
include/configs/taishan.h
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@ -30,6 +30,7 @@
*----------------------------------------------------------------------*/
#define CONFIG_TAISHAN 1 /* Board is taishan */
#define CONFIG_440GX 1 /* Specifc GX support */
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_4xx 1 /* ... PPC4xx family */
#undef CFG_DRAM_TEST /* Disable-takes long time! */
#define CONFIG_SYS_CLK_FREQ 33333333 /* external freq to pll */

1
include/configs/yosemite.h
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@ -38,6 +38,7 @@
#define CONFIG_440GR 1 /* Specific PPC440GR support */
#define CONFIG_HOSTNAME yellowstone
#endif
#define CONFIG_440 1 /* ... PPC440 family */
#define CONFIG_4xx 1 /* ... PPC4xx family */
#define CONFIG_SYS_CLK_FREQ 66666666 /* external freq to pll */

9
include/ppc405.h
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@ -27,6 +27,15 @@
/*--------------------------------------------------------------------- */
#define srr2 0x3de /* save/restore register 2 */
#define srr3 0x3df /* save/restore register 3 */
/*
* 405 does not really have CSRR0/1 but SRR2/3 are used during critical
* exception for the exact same purposes - let's alias them and have a
* common handling in crit_return() and CRIT_EXCEPTION
*/
#define csrr0 srr2
#define csrr1 srr3
#define dbsr 0x3f0 /* debug status register */
#define dbcr0 0x3f2 /* debug control register 0 */
#define dbcr1 0x3bd /* debug control register 1 */

5
include/ppc440.h
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@ -82,10 +82,7 @@
#define ivor13 0x19d /* interrupt vector offset register 13 */
#define ivor14 0x19e /* interrupt vector offset register 14 */
#define ivor15 0x19f /* interrupt vector offset register 15 */
#if defined(CONFIG_440GX) || \
defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
defined(CONFIG_440SP) || defined(CONFIG_440SPE)
#if defined(CONFIG_440)
#define mcsrr0 0x23a /* machine check save/restore register 0 */
#define mcsrr1 0x23b /* mahcine check save/restore register 1 */
#define mcsr 0x23c /* machine check status register */

1
include/ppc4xx.h
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@ -22,6 +22,7 @@
#ifndef __PPC4XX_H__
#define __PPC4XX_H__
#define _START_OFFSET 0x2100
#if defined(CONFIG_440)
#include <ppc440.h>

96
include/ppc_asm.tmpl
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@ -217,7 +217,7 @@
* We assume sprg3 has the physical address of the current
* task's thread_struct.
*/
#define EXCEPTION_PROLOG \
#define EXCEPTION_PROLOG(reg1, reg2) \
mtspr SPRG0,r20; \
mtspr SPRG1,r21; \
mfcr r20; \
@ -235,8 +235,10 @@
stw r22,_CTR(r21); \
mfspr r20,XER; \
stw r20,_XER(r21); \
mfspr r22,SRR0; \
mfspr r23,SRR1; \
mfspr r20,DEAR; \
stw r20,_DAR(r21); \
mfspr r22,reg1; \
mfspr r23,reg2; \
stw r0,GPR0(r21); \
stw r1,GPR1(r21); \
stw r2,GPR2(r21); \
@ -249,41 +251,6 @@
*/
/*
* Critical exception entry code. This is just like the other exception
* code except that it uses SRR2 and SRR3 instead of SRR0 and SRR1.
*/
#define CRITICAL_EXCEPTION_PROLOG \
mtspr SPRG0,r20; \
mtspr SPRG1,r21; \
mfcr r20; \
subi r21,r1,INT_FRAME_SIZE+STACK_UNDERHEAD; /* alloc exc. frame */\
stw r20,_CCR(r21); /* save registers */ \
stw r22,GPR22(r21); \
stw r23,GPR23(r21); \
mfspr r20,SPRG0; \
stw r20,GPR20(r21); \
mfspr r22,SPRG1; \
stw r22,GPR21(r21); \
mflr r20; \
stw r20,_LINK(r21); \
mfctr r22; \
stw r22,_CTR(r21); \
mfspr r20,XER; \
stw r20,_XER(r21); \
mfspr r22,990; /* SRR2 */ \
mfspr r23,991; /* SRR3 */ \
stw r0,GPR0(r21); \
stw r1,GPR1(r21); \
stw r2,GPR2(r21); \
stw r1,0(r21); \
mr r1,r21; /* set new kernel sp */ \
SAVE_4GPRS(3, r21);
/*
* Note: code which follows this uses cr0.eq (set if from kernel),
* r21, r22 (SRR2), and r23 (SRR3).
*/
/*
* Exception vectors.
*
* The data words for `hdlr' and `int_return' are initialized with
@ -293,30 +260,45 @@
#define STD_EXCEPTION(n, label, hdlr) \
. = n; \
label: \
EXCEPTION_PROLOG; \
EXCEPTION_PROLOG(SRR0, SRR1); \
lwz r3,GOT(transfer_to_handler); \
mtlr r3; \
addi r3,r1,STACK_FRAME_OVERHEAD; \
li r20,MSR_KERNEL; \
rlwimi r20,r23,0,25,25; \
blrl ; \
blrl; \
.L_ ## label : \
.long hdlr - _start + EXC_OFF_SYS_RESET; \
.long int_return - _start + EXC_OFF_SYS_RESET
#define CRIT_EXCEPTION(n, label, hdlr) \
. = n; \
label: \
CRITICAL_EXCEPTION_PROLOG; \
lwz r3,GOT(transfer_to_handler); \
mtlr r3; \
addi r3,r1,STACK_FRAME_OVERHEAD; \
li r20,(MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)); \
rlwimi r20,r23,0,25,25; \
blrl ; \
.L_ ## label : \
.long hdlr - _start + EXC_OFF_SYS_RESET; \
.long crit_return - _start + EXC_OFF_SYS_RESET
.long hdlr - _start + _START_OFFSET; \
.long int_return - _start + _START_OFFSET
#define CRIT_EXCEPTION(n, label, hdlr) \
. = n; \
label: \
EXCEPTION_PROLOG(csrr0, csrr1); \
lwz r3,GOT(transfer_to_handler); \
mtlr r3; \
addi r3,r1,STACK_FRAME_OVERHEAD; \
li r20,(MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)); \
rlwimi r20,r23,0,25,25; \
blrl; \
.L_ ## label : \
.long hdlr - _start + _START_OFFSET; \
.long crit_return - _start + _START_OFFSET
#ifdef CONFIG_440
#define MCK_EXCEPTION(n, label, hdlr) \
. = n; \
label: \
EXCEPTION_PROLOG(MCSRR0, MCSRR1); \
lwz r3,GOT(transfer_to_handler); \
mtlr r3; \
addi r3,r1,STACK_FRAME_OVERHEAD; \
li r20,(MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE)); \
rlwimi r20,r23,0,25,25; \
blrl; \
.L_ ## label : \
.long hdlr - _start + _START_OFFSET; \
.long mck_return - _start + _START_OFFSET
#endif /* CONFIG_440 */
#endif /* __PPC_ASM_TMPL__ */

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