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OpenRISC: Remove

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The OpenRISC architecture is currently unmaintained, remove.

Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
master
Tom Rini 7 years ago
parent 936478e797
commit 70cc0c34b6
46 changed files with 1 additions and 3484 deletions
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  1. 5
      MAINTAINERS
  2. 4
      arch/Kconfig
  3. 18
      arch/openrisc/Kconfig
  4. 8
      arch/openrisc/Makefile
  5. 16
      arch/openrisc/config.mk
  6. 9
      arch/openrisc/cpu/Makefile
  7. 138
      arch/openrisc/cpu/cache.c
  8. 145
      arch/openrisc/cpu/cpu.c
  9. 72
      arch/openrisc/cpu/exceptions.c
  10. 108
      arch/openrisc/cpu/interrupts.c
  11. 352
      arch/openrisc/cpu/start.S
  12. 77
      arch/openrisc/cpu/u-boot.lds
  13. 23
      arch/openrisc/include/asm/bitops.h
  14. 23
      arch/openrisc/include/asm/bitops/ffs.h
  15. 23
      arch/openrisc/include/asm/bitops/fls.h
  16. 1
      arch/openrisc/include/asm/byteorder.h
  17. 22
      arch/openrisc/include/asm/cache.h
  18. 10
      arch/openrisc/include/asm/config.h
  19. 21
      arch/openrisc/include/asm/global_data.h
  20. 71
      arch/openrisc/include/asm/gpio.h
  21. 99
      arch/openrisc/include/asm/io.h
  22. 0
      arch/openrisc/include/asm/linkage.h
  23. 28
      arch/openrisc/include/asm/openrisc_exc.h
  24. 72
      arch/openrisc/include/asm/posix_types.h
  25. 4
      arch/openrisc/include/asm/processor.h
  26. 128
      arch/openrisc/include/asm/ptrace.h
  27. 11
      arch/openrisc/include/asm/sections.h
  28. 575
      arch/openrisc/include/asm/spr-defs.h
  29. 4
      arch/openrisc/include/asm/string.h
  30. 26
      arch/openrisc/include/asm/system.h
  31. 66
      arch/openrisc/include/asm/types.h
  32. 30
      arch/openrisc/include/asm/u-boot.h
  33. 1
      arch/openrisc/include/asm/unaligned.h
  34. 9
      arch/openrisc/lib/Makefile
  35. 74
      arch/openrisc/lib/bootm.c
  36. 98
      arch/openrisc/lib/timer.c
  37. 12
      board/openrisc/openrisc-generic/Kconfig
  38. 6
      board/openrisc/openrisc-generic/MAINTAINERS
  39. 8
      board/openrisc/openrisc-generic/Makefile
  40. 11
      board/openrisc/openrisc-generic/config.mk
  41. 39
      board/openrisc/openrisc-generic/openrisc-generic.c
  42. 871
      board/openrisc/openrisc-generic/or1ksim.cfg
  43. 16
      cmd/bdinfo.c
  44. 13
      configs/openrisc-generic_defconfig
  45. 14
      examples/standalone/stubs.c
  46. 124
      include/configs/openrisc-generic.h

5
MAINTAINERS
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@ -308,11 +308,6 @@ S: Maintained
T: git git://git.denx.de/u-boot-mmc.git
F: drivers/mmc/
OPENRISC
M: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
S: Maintained
F: arch/openrisc/
PATMAN
M: Simon Glass <sjg@chromium.org>
S: Maintained

4
arch/Kconfig
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@ -51,9 +51,6 @@ config NIOS2
select DM
select CPU
config OPENRISC
bool "OpenRISC architecture"
config PPC
bool "PowerPC architecture"
select HAVE_PRIVATE_LIBGCC
@ -159,7 +156,6 @@ source "arch/microblaze/Kconfig"
source "arch/mips/Kconfig"
source "arch/nds32/Kconfig"
source "arch/nios2/Kconfig"
source "arch/openrisc/Kconfig"
source "arch/powerpc/Kconfig"
source "arch/sandbox/Kconfig"
source "arch/sh/Kconfig"

18
arch/openrisc/Kconfig
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@ -1,18 +0,0 @@
menu "OpenRISC architecture"
depends on OPENRISC
config SYS_ARCH
default "openrisc"
choice
prompt "Target select"
optional
config TARGET_OPENRISC_GENERIC
bool "Support openrisc-generic"
endchoice
source "board/openrisc/openrisc-generic/Kconfig"
endmenu

8
arch/openrisc/Makefile
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@ -1,8 +0,0 @@
#
# SPDX-License-Identifier: GPL-2.0+
#
head-y := arch/openrisc/cpu/start.o
libs-y += arch/openrisc/cpu/
libs-y += arch/openrisc/lib/

16
arch/openrisc/config.mk
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@ -1,16 +0,0 @@
#
# (C) Copyright 2011
# Julius Baxter <julius@opencores.org>
#
# SPDX-License-Identifier: GPL-2.0+
#
ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := or1k-elf-
endif
# r10 used for global object pointer, already set in OR32 GCC but just to be
# clear
PLATFORM_CPPFLAGS += -D__OR1K__ -ffixed-r10
CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000

9
arch/openrisc/cpu/Makefile
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@ -1,9 +0,0 @@
#
# (C) Copyright 2011
# Julius Baxter <julius@opencores.org>
#
# SPDX-License-Identifier: GPL-2.0+
#
extra-y = start.o
obj-y = cache.o cpu.o exceptions.o interrupts.o

138
arch/openrisc/cpu/cache.c
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@ -1,138 +0,0 @@
/*
* (C) Copyright 2011, Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
* (C) Copyright 2011, Julius Baxter <julius@opencores.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/system.h>
void flush_dcache_range(unsigned long addr, unsigned long stop)
{
ulong block_size = (mfspr(SPR_DCCFGR) & SPR_DCCFGR_CBS) ? 32 : 16;
while (addr < stop) {
mtspr(SPR_DCBFR, addr);
addr += block_size;
}
}
void invalidate_dcache_range(unsigned long addr, unsigned long stop)
{
ulong block_size = (mfspr(SPR_DCCFGR) & SPR_DCCFGR_CBS) ? 32 : 16;
while (addr < stop) {
mtspr(SPR_DCBIR, addr);
addr += block_size;
}
}
static void invalidate_icache_range(unsigned long addr, unsigned long stop)
{
ulong block_size = (mfspr(SPR_ICCFGR) & SPR_ICCFGR_CBS) ? 32 : 16;
while (addr < stop) {
mtspr(SPR_ICBIR, addr);
addr += block_size;
}
}
void flush_cache(unsigned long addr, unsigned long size)
{
flush_dcache_range(addr, addr + size);
invalidate_icache_range(addr, addr + size);
}
int icache_status(void)
{
return mfspr(SPR_SR) & SPR_SR_ICE;
}
int checkicache(void)
{
unsigned long iccfgr;
unsigned long cache_set_size;
unsigned long cache_ways;
unsigned long cache_block_size;
iccfgr = mfspr(SPR_ICCFGR);
cache_ways = 1 << (iccfgr & SPR_ICCFGR_NCW);
cache_set_size = 1 << ((iccfgr & SPR_ICCFGR_NCS) >> 3);
cache_block_size = (iccfgr & SPR_ICCFGR_CBS) ? 32 : 16;
return cache_set_size * cache_ways * cache_block_size;
}
int dcache_status(void)
{
return mfspr(SPR_SR) & SPR_SR_DCE;
}
int checkdcache(void)
{
unsigned long dccfgr;
unsigned long cache_set_size;
unsigned long cache_ways;
unsigned long cache_block_size;
dccfgr = mfspr(SPR_DCCFGR);
cache_ways = 1 << (dccfgr & SPR_DCCFGR_NCW);
cache_set_size = 1 << ((dccfgr & SPR_DCCFGR_NCS) >> 3);
cache_block_size = (dccfgr & SPR_DCCFGR_CBS) ? 32 : 16;
return cache_set_size * cache_ways * cache_block_size;
}
void dcache_enable(void)
{
mtspr(SPR_SR, mfspr(SPR_SR) | SPR_SR_DCE);
asm volatile("l.nop");
asm volatile("l.nop");
asm volatile("l.nop");
asm volatile("l.nop");
asm volatile("l.nop");
asm volatile("l.nop");
asm volatile("l.nop");
asm volatile("l.nop");
}
void dcache_disable(void)
{
mtspr(SPR_SR, mfspr(SPR_SR) & ~SPR_SR_DCE);
}
void icache_enable(void)
{
mtspr(SPR_SR, mfspr(SPR_SR) | SPR_SR_ICE);
asm volatile("l.nop");
asm volatile("l.nop");
asm volatile("l.nop");
asm volatile("l.nop");
asm volatile("l.nop");
asm volatile("l.nop");
asm volatile("l.nop");
asm volatile("l.nop");
}
void icache_disable(void)
{
mtspr(SPR_SR, mfspr(SPR_SR) & ~SPR_SR_ICE);
}
int cache_init(void)
{
if (mfspr(SPR_UPR) & SPR_UPR_ICP) {
icache_disable();
invalidate_icache_range(0, checkicache());
icache_enable();
}
if (mfspr(SPR_UPR) & SPR_UPR_DCP) {
dcache_disable();
invalidate_dcache_range(0, checkdcache());
dcache_enable();
}
return 0;
}

145
arch/openrisc/cpu/cpu.c
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@ -1,145 +0,0 @@
/*
* (C) Copyright 2011, Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
* (C) Copyright 2011, Julius Baxter <julius@opencores.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/system.h>
#include <asm/openrisc_exc.h>
static volatile int illegal_instruction;
static void illegal_instruction_handler(void)
{
ulong *epcr = (ulong *)mfspr(SPR_EPCR_BASE);
/* skip over the illegal instruction */
mtspr(SPR_EPCR_BASE, (ulong)(++epcr));
illegal_instruction = 1;
}
static void checkinstructions(void)
{
ulong ra = 1, rb = 1, rc;
exception_install_handler(EXC_ILLEGAL_INSTR,
illegal_instruction_handler);
illegal_instruction = 0;
asm volatile("l.mul %0,%1,%2" : "=r" (rc) : "r" (ra), "r" (rb));
printf(" Hardware multiplier: %s\n",
illegal_instruction ? "no" : "yes");
illegal_instruction = 0;
asm volatile("l.div %0,%1,%2" : "=r" (rc) : "r" (ra), "r" (rb));
printf(" Hardware divider: %s\n",
illegal_instruction ? "no" : "yes");
exception_free_handler(EXC_ILLEGAL_INSTR);
}
int checkcpu(void)
{
ulong upr = mfspr(SPR_UPR);
ulong vr = mfspr(SPR_VR);
ulong iccfgr = mfspr(SPR_ICCFGR);
ulong dccfgr = mfspr(SPR_DCCFGR);
ulong immucfgr = mfspr(SPR_IMMUCFGR);
ulong dmmucfgr = mfspr(SPR_DMMUCFGR);
ulong cpucfgr = mfspr(SPR_CPUCFGR);
uint ver = (vr & SPR_VR_VER) >> 24;
uint rev = vr & SPR_VR_REV;
uint block_size;
uint ways;
uint sets;
printf("CPU: OpenRISC-%x00 (rev %d) @ %d MHz\n",
ver, rev, (CONFIG_SYS_CLK_FREQ / 1000000));
if (upr & SPR_UPR_DCP) {
block_size = (dccfgr & SPR_DCCFGR_CBS) ? 32 : 16;
ways = 1 << (dccfgr & SPR_DCCFGR_NCW);
printf(" D-Cache: %d bytes, %d bytes/line, %d way(s)\n",
checkdcache(), block_size, ways);
} else {
printf(" D-Cache: no\n");
}
if (upr & SPR_UPR_ICP) {
block_size = (iccfgr & SPR_ICCFGR_CBS) ? 32 : 16;
ways = 1 << (iccfgr & SPR_ICCFGR_NCW);
printf(" I-Cache: %d bytes, %d bytes/line, %d way(s)\n",
checkicache(), block_size, ways);
} else {
printf(" I-Cache: no\n");
}
if (upr & SPR_UPR_DMP) {
sets = 1 << ((dmmucfgr & SPR_DMMUCFGR_NTS) >> 2);
ways = (dmmucfgr & SPR_DMMUCFGR_NTW) + 1;
printf(" DMMU: %d sets, %d way(s)\n",
sets, ways);
} else {
printf(" DMMU: no\n");
}
if (upr & SPR_UPR_IMP) {
sets = 1 << ((immucfgr & SPR_IMMUCFGR_NTS) >> 2);
ways = (immucfgr & SPR_IMMUCFGR_NTW) + 1;
printf(" IMMU: %d sets, %d way(s)\n",
sets, ways);
} else {
printf(" IMMU: no\n");
}
printf(" MAC unit: %s\n",
(upr & SPR_UPR_MP) ? "yes" : "no");
printf(" Debug unit: %s\n",
(upr & SPR_UPR_DUP) ? "yes" : "no");
printf(" Performance counters: %s\n",
(upr & SPR_UPR_PCUP) ? "yes" : "no");
printf(" Power management: %s\n",
(upr & SPR_UPR_PMP) ? "yes" : "no");
printf(" Interrupt controller: %s\n",
(upr & SPR_UPR_PICP) ? "yes" : "no");
printf(" Timer: %s\n",
(upr & SPR_UPR_TTP) ? "yes" : "no");
printf(" Custom unit(s): %s\n",
(upr & SPR_UPR_CUP) ? "yes" : "no");
printf(" Supported instructions:\n");
printf(" ORBIS32: %s\n",
(cpucfgr & SPR_CPUCFGR_OB32S) ? "yes" : "no");
printf(" ORBIS64: %s\n",
(cpucfgr & SPR_CPUCFGR_OB64S) ? "yes" : "no");
printf(" ORFPX32: %s\n",
(cpucfgr & SPR_CPUCFGR_OF32S) ? "yes" : "no");
printf(" ORFPX64: %s\n",
(cpucfgr & SPR_CPUCFGR_OF64S) ? "yes" : "no");
checkinstructions();
return 0;
}
int cleanup_before_linux(void)
{
disable_interrupts();
return 0;
}
extern void __reset(void);
int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
disable_interrupts();
/* Code the jump to __reset here as the compiler is prone to
emitting a bad jump instruction if the function is in flash */
__asm__("l.movhi r1,hi(__reset); \
l.ori r1,r1,lo(__reset); \
l.jr r1");
/* not reached, __reset does not return */
return 0;
}

72
arch/openrisc/cpu/exceptions.c
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@ -1,72 +0,0 @@
/*
* (C) Copyright 2011, Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
* (C) Copyright 2011, Julius Baxter <julius@opencores.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <stdio_dev.h>
#include <asm/system.h>
static const char * const excp_table[] = {
"Unknown exception",
"Reset",
"Bus Error",
"Data Page Fault",
"Instruction Page Fault",
"Tick Timer",
"Alignment",
"Illegal Instruction",
"External Interrupt",
"D-TLB Miss",
"I-TLB Miss",
"Range",
"System Call",
"Floating Point",
"Trap",
};
static void (*handlers[32])(void);
void exception_install_handler(int exception, void (*handler)(void))
{
if (exception < 0 || exception > 31)
return;
handlers[exception] = handler;
}
void exception_free_handler(int exception)
{
if (exception < 0 || exception > 31)
return;
handlers[exception] = 0;
}
static void exception_hang(int vect)
{
printf("Unhandled exception at 0x%x ", vect & 0xff00);
vect = ((vect >> 8) & 0xff);
if (vect < ARRAY_SIZE(excp_table))
printf("(%s)\n", excp_table[vect]);
else
printf("(%s)\n", excp_table[0]);
printf("EPCR: 0x%08lx\n", mfspr(SPR_EPCR_BASE));
printf("EEAR: 0x%08lx\n", mfspr(SPR_EEAR_BASE));
printf("ESR: 0x%08lx\n", mfspr(SPR_ESR_BASE));
hang();
}
void exception_handler(int vect)
{
int exception = vect >> 8;
if (handlers[exception])
handlers[exception]();
else
exception_hang(vect);
}

108
arch/openrisc/cpu/interrupts.c
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@ -1,108 +0,0 @@
/*
* (C) Copyright 2011, Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
* (C) Copyright 2011, Julius Baxter <julius@opencores.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/types.h>
#include <asm/ptrace.h>
#include <asm/system.h>
#include <asm/openrisc_exc.h>
struct irq_action {
interrupt_handler_t *handler;
void *arg;
int count;
};
static struct irq_action handlers[32];
void interrupt_handler(void)
{
int irq;
while ((irq = ffs(mfspr(SPR_PICSR)))) {
if (handlers[--irq].handler) {
handlers[irq].handler(handlers[irq].arg);
handlers[irq].count++;
} else {
/* disable the interrupt */
mtspr(SPR_PICMR, mfspr(SPR_PICMR) & ~(1 << irq));
printf("Unhandled interrupt: %d\n", irq);
}
/* clear the interrupt */
mtspr(SPR_PICSR, mfspr(SPR_PICSR) & ~(1 << irq));
}
}
int interrupt_init(void)
{
/* install handler for external interrupt exception */
exception_install_handler(EXC_EXT_IRQ, interrupt_handler);
/* Enable interrupts in supervisor register */
mtspr(SPR_SR, mfspr(SPR_SR) | SPR_SR_IEE);
return 0;
}
void enable_interrupts(void)
{
/* Set interrupt enable bit in supervisor register */
mtspr(SPR_SR, mfspr(SPR_SR) | SPR_SR_IEE);
/* Enable timer exception */
mtspr(SPR_SR, mfspr(SPR_SR) | SPR_SR_TEE);
}
int disable_interrupts(void)
{
/* Clear interrupt enable bit in supervisor register */
mtspr(SPR_SR, mfspr(SPR_SR) & ~SPR_SR_IEE);
/* Disable timer exception */
mtspr(SPR_SR, mfspr(SPR_SR) & ~SPR_SR_TEE);
return 0;
}
void irq_install_handler(int irq, interrupt_handler_t *handler, void *arg)
{
if (irq < 0 || irq > 31)
return;
handlers[irq].handler = handler;
handlers[irq].arg = arg;
}
void irq_free_handler(int irq)
{
if (irq < 0 || irq > 31)
return;
handlers[irq].handler = 0;
handlers[irq].arg = 0;
}
#if defined(CONFIG_CMD_IRQ)
int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int i;
printf("\nInterrupt-Information:\n\n");
printf("Nr Routine Arg Count\n");
printf("-----------------------------\n");
for (i = 0; i < 32; i++) {
if (handlers[i].handler) {
printf("%02d %08lx %08lx %d\n",
i,
(ulong)handlers[i].handler,
(ulong)handlers[i].arg,
handlers[i].count);
}
}
printf("\n");
return 0;
}
#endif

352
arch/openrisc/cpu/start.S
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@ -1,352 +0,0 @@
/*
* (C) Copyright 2011, Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
* (C) Copyright 2011, Julius Baxter <julius@opencores.org>
* (C) Copyright 2014, Franck Jullien <franck.jullien@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <asm-offsets.h>
#include <asm/spr-defs.h>
#define EXCEPTION_STACK_SIZE (128+128)
#define HANDLE_EXCEPTION \
l.addi r1, r1, -EXCEPTION_STACK_SIZE ;\
l.sw 0x00(r1), r2 ;\
l.sw 0x1c(r1), r9 ;\
l.movhi r2,hi(_exception_handler) ;\
l.ori r2,r2,lo(_exception_handler) ;\
l.jalr r2 ;\
l.nop ;\
l.lwz r9, 0x1c(r1) ;\
l.addi r1, r1, EXCEPTION_STACK_SIZE ;\
l.rfe ;\
l.nop
.section .vectors, "ax"
.global __reset
/* reset */
.org 0x100
__reset:
/* there is no guarantee r0 is hardwired to zero, clear it here */
l.andi r0, r0, 0
/* reset stack and frame pointers */
l.andi r1, r0, 0
l.andi r2, r0, 0
/* set supervisor mode */
l.ori r3,r0,SPR_SR_SM
l.mtspr r0,r3,SPR_SR
l.jal _cur
l.nop
_cur:
l.ori r8, r9, 0 /* Get _cur current address */
l.movhi r3, hi(_cur)
l.ori r3, r3, lo(_cur)
l.sfeq r8, r3 /* If we are running at the linked address */
l.bf _no_vector_reloc /* there is not need for relocation */
l.sub r8, r8, r3
l.mfspr r4, r0, SPR_CPUCFGR
l.andi r4, r4, SPR_CPUCFGR_EVBARP /* Exception Vector Base Address Register present ? */
l.sfnei r4,0
l.bnf _reloc_vectors
l.movhi r5, 0 /* Destination */
l.mfspr r4, r0, SPR_EVBAR
l.add r5, r5, r4
_reloc_vectors:
/* Relocate vectors*/
l.movhi r5, 0 /* Destination */
l.movhi r6, hi(__start) /* Length */
l.ori r6, r6, lo(__start)
l.ori r3, r8, 0
.L_relocvectors:
l.lwz r7, 0(r3)
l.sw 0(r5), r7
l.addi r5, r5, 4
l.sfeq r5, r6
l.bnf .L_relocvectors
l.addi r3, r3, 4
_no_vector_reloc:
/* Relocate u-boot */
l.movhi r3,hi(__start) /* source start offset */
l.ori r3,r3,lo(__start)
l.add r3,r8,r3
l.movhi r4,hi(_stext) /* dest start address */
l.ori r4,r4,lo(_stext)
l.movhi r5,hi(__end) /* dest end address */
l.ori r5,r5,lo(__end)
.L_reloc:
l.lwz r6,0(r3)
l.sw 0(r4),r6
l.addi r3,r3,4
l.sfltu r4,r5
l.bf .L_reloc
l.addi r4,r4,4 /* delay slot */
l.movhi r4,hi(_start)
l.ori r4,r4,lo(_start)
l.jr r4
l.nop
/* bus error */
.org 0x200
HANDLE_EXCEPTION
/* data page fault */
.org 0x300
HANDLE_EXCEPTION
/* instruction page fault */
.org 0x400
HANDLE_EXCEPTION
/* tick timer */
.org 0x500
HANDLE_EXCEPTION
/* alignment */
.org 0x600
HANDLE_EXCEPTION
/* illegal instruction */
.org 0x700
HANDLE_EXCEPTION
/* external interrupt */
.org 0x800
HANDLE_EXCEPTION
/* D-TLB miss */
.org 0x900
HANDLE_EXCEPTION
/* I-TLB miss */
.org 0xa00
HANDLE_EXCEPTION
/* range */
.org 0xb00
HANDLE_EXCEPTION
/* system call */
.org 0xc00
HANDLE_EXCEPTION
/* floating point */
.org 0xd00
HANDLE_EXCEPTION
/* trap */
.org 0xe00
HANDLE_EXCEPTION
/* reserved */
.org 0xf00
HANDLE_EXCEPTION
/* reserved */
.org 0x1100
HANDLE_EXCEPTION
/* reserved */
.org 0x1200
HANDLE_EXCEPTION
/* reserved */
.org 0x1300
HANDLE_EXCEPTION
/* reserved */
.org 0x1400
HANDLE_EXCEPTION
/* reserved */
.org 0x1500
HANDLE_EXCEPTION
/* reserved */
.org 0x1600
HANDLE_EXCEPTION
/* reserved */
.org 0x1700
HANDLE_EXCEPTION
/* reserved */
.org 0x1800
HANDLE_EXCEPTION
/* reserved */
.org 0x1900
HANDLE_EXCEPTION
/* reserved */
.org 0x1a00
HANDLE_EXCEPTION
/* reserved */
.org 0x1b00
HANDLE_EXCEPTION
/* reserved */
.org 0x1c00
HANDLE_EXCEPTION
/* reserved */
.org 0x1d00
HANDLE_EXCEPTION
/* reserved */
.org 0x1e00
HANDLE_EXCEPTION
/* reserved */
.org 0x1f00
HANDLE_EXCEPTION
/* Startup routine */
.text
.global _start
_start:
/* Init stack and frame pointers */
l.movhi r1, hi(CONFIG_SYS_INIT_SP_ADDR)
l.ori r1, r1, lo(CONFIG_SYS_INIT_SP_ADDR)
l.or r2, r0, r1
/* clear BSS segments */
l.movhi r4, hi(_bss_start)
l.ori r4, r4, lo(_bss_start)
l.movhi r5, hi(_bss_end)
l.ori r5, r5, lo(_bss_end)
.L_clear_bss:
l.sw 0(r4), r0
l.sfltu r4,r5
l.bf .L_clear_bss
l.addi r4,r4,4
/* Reset registers before jumping to board_init */
l.andi r3, r0, 0
l.andi r4, r0, 0
l.andi r5, r0, 0
l.andi r6, r0, 0
l.andi r7, r0, 0
l.andi r8, r0, 0
l.andi r9, r0, 0
l.andi r10, r0, 0
l.andi r11, r0, 0
l.andi r12, r0, 0
l.andi r13, r0, 0
l.andi r14, r0, 0
l.andi r15, r0, 0
l.andi r17, r0, 0
l.andi r18, r0, 0
l.andi r19, r0, 0
l.andi r20, r0, 0
l.andi r21, r0, 0
l.andi r22, r0, 0
l.andi r23, r0, 0
l.andi r24, r0, 0
l.andi r25, r0, 0
l.andi r26, r0, 0
l.andi r27, r0, 0
l.andi r28, r0, 0
l.andi r29, r0, 0
l.andi r30, r0, 0
l.andi r31, r0, 0
l.j board_init
l.nop
.size _start, .-_start
/*
* Store state onto stack and call the real exception handler
*/
.section .text
.extern exception_handler
.type _exception_handler,@function
_exception_handler:
/* Store state (r2 and r9 already saved)*/
l.sw 0x04(r1), r3
l.sw 0x08(r1), r4
l.sw 0x0c(r1), r5
l.sw 0x10(r1), r6
l.sw 0x14(r1), r7
l.sw 0x18(r1), r8
l.sw 0x20(r1), r10
l.sw 0x24(r1), r11
l.sw 0x28(r1), r12
l.sw 0x2c(r1), r13
l.sw 0x30(r1), r14
l.sw 0x34(r1), r15
l.sw 0x38(r1), r16
l.sw 0x3c(r1), r17
l.sw 0x40(r1), r18
l.sw 0x44(r1), r19
l.sw 0x48(r1), r20
l.sw 0x4c(r1), r21
l.sw 0x50(r1), r22
l.sw 0x54(r1), r23
l.sw 0x58(r1), r24
l.sw 0x5c(r1), r25
l.sw 0x60(r1), r26
l.sw 0x64(r1), r27
l.sw 0x68(r1), r28
l.sw 0x6c(r1), r29
l.sw 0x70(r1), r30
l.sw 0x74(r1), r31
/* Save return address */
l.or r14, r0, r9
/* Call exception handler with the link address as argument */
l.jal exception_handler
l.or r3, r0, r14
/* Load return address */
l.or r9, r0, r14
/* Restore state */
l.lwz r2, 0x00(r1)
l.lwz r3, 0x04(r1)
l.lwz r4, 0x08(r1)
l.lwz r5, 0x0c(r1)
l.lwz r6, 0x10(r1)
l.lwz r7, 0x14(r1)
l.lwz r8, 0x18(r1)
l.lwz r10, 0x20(r1)
l.lwz r11, 0x24(r1)
l.lwz r12, 0x28(r1)
l.lwz r13, 0x2c(r1)
l.lwz r14, 0x30(r1)
l.lwz r15, 0x34(r1)
l.lwz r16, 0x38(r1)
l.lwz r17, 0x3c(r1)
l.lwz r18, 0x40(r1)
l.lwz r19, 0x44(r1)
l.lwz r20, 0x48(r1)
l.lwz r21, 0x4c(r1)
l.lwz r22, 0x50(r1)
l.lwz r23, 0x54(r1)
l.lwz r24, 0x58(r1)
l.lwz r25, 0x5c(r1)
l.lwz r26, 0x60(r1)
l.lwz r27, 0x64(r1)
l.lwz r28, 0x68(r1)
l.lwz r29, 0x6c(r1)
l.lwz r30, 0x70(r1)
l.lwz r31, 0x74(r1)
l.jr r9
l.nop

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arch/openrisc/cpu/u-boot.lds
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#include <config.h>
OUTPUT_ARCH(or1k)
__DYNAMIC = 0;
MEMORY
{
vectors : ORIGIN = 0, LENGTH = 0x2000
ram : ORIGIN = CONFIG_SYS_MONITOR_BASE,
LENGTH = CONFIG_SYS_MONITOR_LEN
}
SECTIONS
{
.vectors :
{
*(.vectors)
} > vectors
__start = .;
.text : AT (__start) {
_stext = .;
*(.text)
_etext = .;
*(.lit)
*(.shdata)
_endtext = .;
} > ram
. = ALIGN(4);
.u_boot_list : {
KEEP(*(SORT(.u_boot_list*)));
} > ram
.rodata : {
*(.rodata);
*(.rodata.*)
} > ram
.shbss :
{
*(.shbss)
} > ram
.talias :
{
} > ram
.data : {
sdata = .;
_sdata = .;
*(.data)
edata = .;
_edata = .;
} > ram
.bss :
{
_bss_start = .;
*(.bss)
*(COMMON)
_bss_end = .;
} > ram
__end = .;
/* No stack specification - done manually */
.stab 0 (NOLOAD) :
{
[ .stab ]
}
.stabstr 0 (NOLOAD) :
{
[ .stabstr ]
}
}

23
arch/openrisc/include/asm/bitops.h
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/*
* (C) Copyright 2011, Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_OPENRISC_BITOPS_H
#define __ASM_OPENRISC_BITOPS_H
#define PLATFORM_FLS
#include <asm/bitops/fls.h>
#define PLATFORM_FFS
#include <asm/bitops/ffs.h>
#include <asm-generic/bitops/__fls.h>
#include <asm-generic/bitops/fls64.h>
#include <asm-generic/bitops/__ffs.h>
#define hweight32(x) generic_hweight32(x)
#define hweight16(x) generic_hweight16(x)
#define hweight8(x) generic_hweight8(x)
#endif /* __ASM_GENERIC_BITOPS_H */

23
arch/openrisc/include/asm/bitops/ffs.h
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/*
* OpenRISC Linux
*
* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_OPENRISC_FFS_H
#define __ASM_OPENRISC_FFS_H
static inline int ffs(int x)
{
int ret;
__asm__ ("l.ff1 %0,%1"
: "=r" (ret)
: "r" (x));
return ret;
}
#endif /* __ASM_OPENRISC_FFS_H */

23
arch/openrisc/include/asm/bitops/fls.h
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/*
* OpenRISC Linux
*
* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_OPENRISC_FLS_H
#define __ASM_OPENRISC_FLS_H
static inline int fls(int x)
{
int ret;
__asm__ ("l.fl1 %0,%1"
: "=r" (ret)
: "r" (x));
return ret;
}
#endif /* __ASM_OPENRISC_FLS_H */

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arch/openrisc/include/asm/byteorder.h
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#include <linux/byteorder/big_endian.h>

22
arch/openrisc/include/asm/cache.h
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/*
* (C) Copyright 2011, Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_OPENRISC_CACHE_H_
#define __ASM_OPENRISC_CACHE_H_
/*
* Valid L1 data cache line sizes for the OpenRISC architecture are
* 16 and 32 bytes.
* If the board configuration has not specified one we default to the
* largest of these values for alignment of DMA buffers.
*/
#ifdef CONFIG_SYS_CACHELINE_SIZE
#define ARCH_DMA_MINALIGN CONFIG_SYS_CACHELINE_SIZE
#else
#define ARCH_DMA_MINALIGN 32
#endif
#endif /* __ASM_OPENRISC_CACHE_H_ */

10
arch/openrisc/include/asm/config.h
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@ -1,10 +0,0 @@
/*
* Copyright 2009 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _ASM_CONFIG_H_
#define _ASM_CONFIG_H_
#endif

21
arch/openrisc/include/asm/global_data.h
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/*
* (C) Copyright 2004 Atmark Techno, Inc.
*
* Yasushi SHOJI <yashi@atmark-techno.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_GBL_DATA_H
#define __ASM_GBL_DATA_H
/* Architecture-specific global data */
struct arch_global_data {
};
#include <asm-generic/global_data.h>
/* OR32 GCC already has r10 set as fixed-use */
#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r10")
#endif /* __ASM_GBL_DATA_H */

71
arch/openrisc/include/asm/gpio.h
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/*
* OpenRISC gpio driver
*
* Copyright (C) 2011 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
*
* based on nios2 gpio driver
* Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
*
* when CONFIG_SYS_GPIO_BASE is not defined, board may provide
* its own driver.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifdef CONFIG_SYS_GPIO_BASE
#include <asm/io.h>
static inline int gpio_request(unsigned gpio, const char *label)
{
return 0;
}
static inline int gpio_free(unsigned gpio)
{
return 0;
}
static inline int gpio_get_value(unsigned gpio)
{
return (readb(CONFIG_SYS_GPIO_BASE + gpio/8) >> gpio%8) & 0x1;
}
static inline void gpio_set_value(unsigned gpio, int value)
{
u8 tmp = readb(CONFIG_SYS_GPIO_BASE + gpio/8);
if (value)
tmp |= (1 << gpio%8);
else
tmp &= ~(1 << gpio%8);
writeb(tmp, CONFIG_SYS_GPIO_BASE + gpio/8);
}
static inline int gpio_direction_input(unsigned gpio)
{
gpio_set_value(gpio + CONFIG_SYS_GPIO_WIDTH, 0);
return 0;
}
static inline int gpio_direction_output(unsigned gpio, int value)
{
gpio_set_value(gpio + CONFIG_SYS_GPIO_WIDTH, 1);
gpio_set_value(gpio, value);
return 0;
}
static inline int gpio_is_valid(int number)
{
return ((unsigned)number) < CONFIG_SYS_GPIO_WIDTH;
}
#else
extern int gpio_request(unsigned gpio, const char *label);
extern int gpio_free(unsigned gpio);
extern int gpio_direction_input(unsigned gpio);
extern int gpio_direction_output(unsigned gpio, int value);
extern int gpio_get_value(unsigned gpio);
extern void gpio_set_value(unsigned gpio, int value);
extern int gpio_is_valid(int number);
#endif /* CONFIG_SYS_GPIO_BASE */

99
arch/openrisc/include/asm/io.h
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/*
* (C) Copyright 2011, Julius Baxter <julius@opencores.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_OPENRISC_IO_H
#define __ASM_OPENRISC_IO_H
/*
* Given a physical address and a length, return a virtual address
* that can be used to access the memory range with the caching
* properties specified by "flags".
*/
#define MAP_NOCACHE (0)
#define MAP_WRCOMBINE (0)
#define MAP_WRBACK (0)
#define MAP_WRTHROUGH (0)
static inline void *
map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
{
return (void *)paddr;
}
/*
* Take down a mapping set up by map_physmem().
*/
static inline void unmap_physmem(void *vaddr, unsigned long flags)
{
}
/*
* Change virtual addresses to physical addresses
*/
static inline phys_addr_t virt_to_phys(void *vaddr)
{
return (phys_addr_t)(vaddr);
}
/*
* readX/writeX() are used to access memory mapped devices. On some
* architectures the memory mapped IO stuff needs to be accessed
* differently. On the openrisc architecture, we just read/write the
* memory location directly.
*/
#define readb(addr) (*(volatile unsigned char *) (addr))
#define readw(addr) (*(volatile unsigned short *) (addr))
#define readl(addr) (*(volatile unsigned int *) (addr))
#define __raw_readb readb
#define __raw_readw readw
#define __raw_readl readl
#define writeb(b, addr) ((*(volatile unsigned char *) (addr)) = (b))
#define writew(b, addr) ((*(volatile unsigned short *) (addr)) = (b))
#define writel(b, addr) ((*(volatile unsigned int *) (addr)) = (b))
#define __raw_writeb writeb
#define __raw_writew writew
#define __raw_writel writel
#define memset_io(a, b, c) memset((void *)(a), (b), (c))
#define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c))
#define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c))
/*
* Again, OpenRISC does not require mem IO specific function.
*/
#define IO_BASE 0x0
#define IO_SPACE_LIMIT 0xffffffff
#define inb(port) readb((port + IO_BASE))
#define outb(value, port) writeb((value), (port + IO_BASE))
#define inb_p(port) inb((port))
#define outb_p(value, port) outb((value), (port))
/*
* Convert a physical pointer to a virtual kernel pointer for /dev/mem
* access
*/
#define xlate_dev_mem_ptr(p) __va(p)
/*
* Convert a virtual cached pointer to an uncached pointer
*/
#define xlate_dev_kmem_ptr(p) p
#define ioread8(addr) readb(addr)
#define ioread16(addr) readw(addr)
#define ioread32(addr) readl(addr)
#define iowrite8(v, addr) writeb((v), (addr))
#define iowrite16(v, addr) writew((v), (addr))
#define iowrite32(v, addr) writel((v), (addr))
#endif

0
arch/openrisc/include/asm/linkage.h
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28
arch/openrisc/include/asm/openrisc_exc.h
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/*
* (C) Copyright 2011, Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _OPENRISC_EXC_H_
#define _OPENRISC_EXC_H_
#define EXC_RESET 0x01
#define EXC_BUS_ERROR 0x02
#define EXC_DATA_PAGE_FAULT 0x03
#define EXC_INSTR_PAGE_FAULT 0x04
#define EXC_TIMER 0x05
#define EXC_ALIGNMENT 0x06
#define EXC_ILLEGAL_INSTR 0x07
#define EXC_EXT_IRQ 0x08
#define EXC_DTLB_MISS 0x09
#define EXC_ITLB_MISS 0x0a
#define EXC_RANGE 0x0b
#define EXC_SYSCALL 0x0c
#define EXC_FLOAT_POINT 0x0d
#define EXC_TRAP 0x0e
void exception_install_handler(int exception, void (*handler)(void));
void exception_free_handler(int exception);
#endif

72
arch/openrisc/include/asm/posix_types.h
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/*
* Based on microblaze implementation:
* Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au>
* Copyright (C) 2001,2002 NEC Corporation
* Copyright (C) 2001,2002 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
* Microblaze port by John Williams
*/
#ifndef __ASM_OPENRISC_POSIX_TYPES_H
#define __ASM_OPENRISC_POSIX_TYPES_H
typedef unsigned int __kernel_dev_t;
typedef unsigned long __kernel_ino_t;
typedef unsigned long long __kernel_ino64_t;
typedef unsigned int __kernel_mode_t;
typedef unsigned int __kernel_nlink_t;
typedef long __kernel_off_t;
typedef long long __kernel_loff_t;
typedef int __kernel_pid_t;
typedef unsigned short __kernel_ipc_pid_t;
typedef unsigned int __kernel_uid_t;
typedef unsigned int __kernel_gid_t;
typedef unsigned int __kernel_size_t;
typedef int __kernel_ssize_t;
typedef int __kernel_ptrdiff_t;
typedef long __kernel_time_t;
typedef long __kernel_suseconds_t;
typedef long __kernel_clock_t;
typedef int __kernel_daddr_t;
typedef char *__kernel_caddr_t;
typedef unsigned short __kernel_uid16_t;
typedef unsigned short __kernel_gid16_t;
typedef unsigned int __kernel_uid32_t;
typedef unsigned int __kernel_gid32_t;
typedef unsigned short __kernel_old_uid_t;
typedef unsigned short __kernel_old_gid_t;
typedef struct {
#if defined(__KERNEL__) || defined(__USE_ALL)
int val[2];
#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
int __val[2];
#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
} __kernel_fsid_t;
#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
#undef __FD_SET
#define __FD_SET(fd, fd_set) \
__set_bit(fd, (void *)&((__kernel_fd_set *)fd_set)->fds_bits)
#undef __FD_CLR
#define __FD_CLR(fd, fd_set) \
__clear_bit(fd, (void *)&((__kernel_fd_set *)fd_set)->fds_bits)
#undef __FD_ISSET
#define __FD_ISSET(fd, fd_set) \
__test_bit(fd, (void *)&((__kernel_fd_set *)fd_set)->fds_bits)
#undef __FD_ZERO
#define __FD_ZERO(fd_set) \
memset(fd_set, 0, sizeof(*(fd_set *)fd_set))
#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
#endif /* __ASM_OPENRISC_POSIX_TYPES_H */

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arch/openrisc/include/asm/processor.h
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#ifndef __ASM_OPENRISC_PROCESSOR_H
#define __ASM_OPENRISC_PROCESSOR_H
#endif

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arch/openrisc/include/asm/ptrace.h
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/*
* OpenRISC Linux
*
* Linux architectural port borrowing liberally from similar works of
* others. All original copyrights apply as per the original source
* declaration.
*
* OpenRISC implementation:
* Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
* et al.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_OPENRISC_PTRACE_H
#define __ASM_OPENRISC_PTRACE_H
#include <asm/spr-defs.h>
#ifndef __ASSEMBLY__
/*
* This is the layout of the regset returned by the GETREGSET ptrace call
*/
struct user_regs_struct {
/* GPR R0-R31... */
unsigned long gpr[32];
unsigned long pc;
unsigned long sr;
unsigned long pad1;
unsigned long pad2;
};
#endif
#ifdef __KERNEL__
/*
* Make kernel PTrace/register structures opaque to userspace... userspace can
* access thread state via the regset mechanism. This allows us a bit of
* flexibility in how we order the registers on the stack, permitting some
* optimizations like packing call-clobbered registers together so that
* they share a cacheline (not done yet, though... future optimization).
*/
#ifndef __ASSEMBLY__
/*
* This struct describes how the registers are laid out on the kernel stack
* during a syscall or other kernel entry.
*
* This structure should always be cacheline aligned on the stack.
* FIXME: I don't think that's the case right now. The alignment is
* taken care of elsewhere... head.S, process.c, etc.
*/
struct pt_regs {
union {
struct {
/* Named registers */
long sr; /* Stored in place of r0 */
long sp; /* r1 */
};
struct {
/* Old style */
long offset[2];
long gprs[30];
};
struct {
/* New style */
long gpr[32];
};
};
long pc;
long orig_gpr11; /* For restarting system calls */
long syscallno; /* Syscall number (used by strace) */
long dummy; /* Cheap alignment fix */
};
#endif /* __ASSEMBLY__ */
/* TODO: Rename this to REDZONE because that's what it is */
#define STACK_FRAME_OVERHEAD 128 /* size of minimum stack frame */
#define instruction_pointer(regs) ((regs)->pc)
#define user_mode(regs) (((regs)->sr & SPR_SR_SM) == 0)
#define user_stack_pointer(regs) ((unsigned long)(regs)->sp)
#define profile_pc(regs) instruction_pointer(regs)
/*
* Offsets used by 'ptrace' system call interface.
*/
#define PT_SR 0
#define PT_SP 4
#define PT_GPR2 8
#define PT_GPR3 12
#define PT_GPR4 16
#define PT_GPR5 20
#define PT_GPR6 24
#define PT_GPR7 28
#define PT_GPR8 32
#define PT_GPR9 36
#define PT_GPR10 40
#define PT_GPR11 44
#define PT_GPR12 48
#define PT_GPR13 52
#define PT_GPR14 56
#define PT_GPR15 60
#define PT_GPR16 64
#define PT_GPR17 68
#define PT_GPR18 72
#define PT_GPR19 76
#define PT_GPR20 80
#define PT_GPR21 84
#define PT_GPR22 88
#define PT_GPR23 92
#define PT_GPR24 96
#define PT_GPR25 100
#define PT_GPR26 104
#define PT_GPR27 108
#define PT_GPR28 112
#define PT_GPR29 116
#define PT_GPR30 120
#define PT_GPR31 124
#define PT_PC 128
#define PT_ORIG_GPR11 132
#define PT_SYSCALLNO 136
#endif /* __KERNEL__ */
#endif /* __ASM_OPENRISC_PTRACE_H */

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arch/openrisc/include/asm/sections.h
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/*
* Copyright (c) 2012 The Chromium OS Authors.
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_OPENRISC_SECTIONS_H
#define __ASM_OPENRISC_SECTIONS_H
#include <asm-generic/sections.h>
#endif

575
arch/openrisc/include/asm/spr-defs.h
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/*
* SPR Definitions
*
* Copyright (C) 2000 Damjan Lampret
* Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
* Copyright (C) 2008, 2010 Embecosm Limited
* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
* et al.
*
* SPDX-License-Identifier: GPL-2.0+
*
* This file is part of OpenRISC 1000 Architectural Simulator.
*/
#ifndef SPR_DEFS__H
#define SPR_DEFS__H
/* Definition of special-purpose registers (SPRs) */
#define MAX_GRPS (32)
#define MAX_SPRS_PER_GRP_BITS (11)
#define MAX_SPRS_PER_GRP (1 << MAX_SPRS_PER_GRP_BITS)
#define MAX_SPRS (0x10000)
/* Base addresses for the groups */
#define SPRGROUP_SYS (0 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_DMMU (1 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_IMMU (2 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_DC (3 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_IC (4 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_MAC (5 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_D (6 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_PC (7 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_PM (8 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_PIC (9 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_TT (10 << MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_FP (11 << MAX_SPRS_PER_GRP_BITS)
/* System control and status group */
#define SPR_VR (SPRGROUP_SYS + 0)
#define SPR_UPR (SPRGROUP_SYS + 1)
#define SPR_CPUCFGR (SPRGROUP_SYS + 2)
#define SPR_DMMUCFGR (SPRGROUP_SYS + 3)
#define SPR_IMMUCFGR (SPRGROUP_SYS + 4)
#define SPR_DCCFGR (SPRGROUP_SYS + 5)
#define SPR_ICCFGR (SPRGROUP_SYS + 6)
#define SPR_DCFGR (SPRGROUP_SYS + 7)
#define SPR_PCCFGR (SPRGROUP_SYS + 8)
#define SPR_VR2 (SPRGROUP_SYS + 9)
#define SPR_AVR (SPRGROUP_SYS + 10)
#define SPR_EVBAR (SPRGROUP_SYS + 11)
#define SPR_AECR (SPRGROUP_SYS + 12)
#define SPR_AESR (SPRGROUP_SYS + 13)
#define SPR_NPC (SPRGROUP_SYS + 16)
#define SPR_SR (SPRGROUP_SYS + 17)
#define SPR_PPC (SPRGROUP_SYS + 18)
#define SPR_FPCSR (SPRGROUP_SYS + 20)
#define SPR_EPCR_BASE (SPRGROUP_SYS + 32)
#define SPR_EPCR_LAST (SPRGROUP_SYS + 47)
#define SPR_EEAR_BASE (SPRGROUP_SYS + 48)
#define SPR_EEAR_LAST (SPRGROUP_SYS + 63)
#define SPR_ESR_BASE (SPRGROUP_SYS + 64)
#define SPR_ESR_LAST (SPRGROUP_SYS + 79)
#define SPR_GPR_BASE (SPRGROUP_SYS + 1024)
/* Data MMU group */
#define SPR_DMMUCR (SPRGROUP_DMMU + 0)
#define SPR_DTLBEIR (SPRGROUP_DMMU + 2)
#define SPR_DTLBMR_BASE(WAY) (SPRGROUP_DMMU + 0x200 + (WAY) * 0x100)
#define SPR_DTLBMR_LAST(WAY) (SPRGROUP_DMMU + 0x27f + (WAY) * 0x100)
#define SPR_DTLBTR_BASE(WAY) (SPRGROUP_DMMU + 0x280 + (WAY) * 0x100)
#define SPR_DTLBTR_LAST(WAY) (SPRGROUP_DMMU + 0x2ff + (WAY) * 0x100)
/* Instruction MMU group */
#define SPR_IMMUCR (SPRGROUP_IMMU + 0)
#define SPR_ITLBEIR (SPRGROUP_IMMU + 2)
#define SPR_ITLBMR_BASE(WAY) (SPRGROUP_IMMU + 0x200 + (WAY) * 0x100)
#define SPR_ITLBMR_LAST(WAY) (SPRGROUP_IMMU + 0x27f + (WAY) * 0x100)
#define SPR_ITLBTR_BASE(WAY) (SPRGROUP_IMMU + 0x280 + (WAY) * 0x100)
#define SPR_ITLBTR_LAST(WAY) (SPRGROUP_IMMU + 0x2ff + (WAY) * 0x100)
/* Data cache group */
#define SPR_DCCR (SPRGROUP_DC + 0)
#define SPR_DCBPR (SPRGROUP_DC + 1)
#define SPR_DCBFR (SPRGROUP_DC + 2)
#define SPR_DCBIR (SPRGROUP_DC + 3)
#define SPR_DCBWR (SPRGROUP_DC + 4)
#define SPR_DCBLR (SPRGROUP_DC + 5)
#define SPR_DCR_BASE(WAY) (SPRGROUP_DC + 0x200 + (WAY) * 0x200)
#define SPR_DCR_LAST(WAY) (SPRGROUP_DC + 0x3ff + (WAY) * 0x200)
/* Instruction cache group */
#define SPR_ICCR (SPRGROUP_IC + 0)
#define SPR_ICBPR (SPRGROUP_IC + 1)
#define SPR_ICBIR (SPRGROUP_IC + 2)
#define SPR_ICBLR (SPRGROUP_IC + 3)
#define SPR_ICR_BASE(WAY) (SPRGROUP_IC + 0x200 + (WAY) * 0x200)
#define SPR_ICR_LAST(WAY) (SPRGROUP_IC + 0x3ff + (WAY) * 0x200)
/* MAC group */
#define SPR_MACLO (SPRGROUP_MAC + 1)
#define SPR_MACHI (SPRGROUP_MAC + 2)
/* Debug group */
#define SPR_DVR(N) (SPRGROUP_D + (N))
#define SPR_DCR(N) (SPRGROUP_D + 8 + (N))
#define SPR_DMR1 (SPRGROUP_D + 16)
#define SPR_DMR2 (SPRGROUP_D + 17)
#define SPR_DWCR0 (SPRGROUP_D + 18)
#define SPR_DWCR1 (SPRGROUP_D + 19)
#define SPR_DSR (SPRGROUP_D + 20)
#define SPR_DRR (SPRGROUP_D + 21)
/* Performance counters group */
#define SPR_PCCR(N) (SPRGROUP_PC + (N))
#define SPR_PCMR(N) (SPRGROUP_PC + 8 + (N))
/* Power management group */
#define SPR_PMR (SPRGROUP_PM + 0)
/* PIC group */
#define SPR_PICMR (SPRGROUP_PIC + 0)
#define SPR_PICPR (SPRGROUP_PIC + 1)
#define SPR_PICSR (SPRGROUP_PIC + 2)
/* Tick Timer group */
#define SPR_TTMR (SPRGROUP_TT + 0)
#define SPR_TTCR (SPRGROUP_TT + 1)
/*
* Bit definitions for the Version Register
*/
#define SPR_VR_VER 0xff000000 /* Processor version */
#define SPR_VR_CFG 0x00ff0000 /* Processor configuration */
#define SPR_VR_RES 0x0000ffc0 /* Reserved */
#define SPR_VR_REV 0x0000003f /* Processor revision */
#define SPR_VR_VER_OFF 24
#define SPR_VR_CFG_OFF 16
#define SPR_VR_REV_OFF 0
/*
* Bit definitions for the Unit Present Register
*/
#define SPR_UPR_UP 0x00000001 /* UPR present */
#define SPR_UPR_DCP 0x00000002 /* Data cache present */
#define SPR_UPR_ICP 0x00000004 /* Instruction cache present */
#define SPR_UPR_DMP 0x00000008 /* Data MMU present */
#define SPR_UPR_IMP 0x00000010 /* Instruction MMU present */
#define SPR_UPR_MP 0x00000020 /* MAC present */
#define SPR_UPR_DUP 0x00000040 /* Debug unit present */
#define SPR_UPR_PCUP 0x00000080 /* Performance counters unit present */
#define SPR_UPR_PMP 0x00000100 /* Power management present */
#define SPR_UPR_PICP 0x00000200 /* PIC present */
#define SPR_UPR_TTP 0x00000400 /* Tick timer present */
#define SPR_UPR_RES 0x00fe0000 /* Reserved */
#define SPR_UPR_CUP 0xff000000 /* Context units present */
/*
* Bit definitions for the CPU configuration register
*/
#define SPR_CPUCFGR_NSGF 0x0000000f /* Number of shadow GPR files */
#define SPR_CPUCFGR_CGF 0x00000010 /* Custom GPR file */
#define SPR_CPUCFGR_OB32S 0x00000020 /* ORBIS32 supported */
#define SPR_CPUCFGR_OB64S 0x00000040 /* ORBIS64 supported */
#define SPR_CPUCFGR_OF32S 0x00000080 /* ORFPX32 supported */
#define SPR_CPUCFGR_OF64S 0x00000100 /* ORFPX64 supported */
#define SPR_CPUCFGR_OV64S 0x00000200 /* ORVDX64 supported */
#define SPR_CPUCFGR_ND 0x00000400 /* No delay slot */
#define SPR_CPUCFGR_AVRP 0x00000800 /* Arch. Version Register present */
#define SPR_CPUCFGR_EVBARP 0x00001000 /* Exception Vector Base Address Register (EVBAR) present */
#define SPR_CPUCFGR_ISRP 0x00002000 /* Implementation-Specific Registers (ISR0-7) present */
#define SPR_CPUCFGR_AECSRP 0x00004000 /* Arithmetic Exception Control Register (AECR) and */
/* Arithmetic Exception Status Register (AESR) presents */
#define SPR_CPUCFGR_RES 0xffffc000 /* Reserved */
/*
* Bit definitions for the Debug configuration register and other
* constants.
*/
#define SPR_DCFGR_NDP 0x00000007 /* Number of matchpoints mask */
#define SPR_DCFGR_NDP1 0x00000000 /* One matchpoint supported */
#define SPR_DCFGR_NDP2 0x00000001 /* Two matchpoints supported */
#define SPR_DCFGR_NDP3 0x00000002 /* Three matchpoints supported */
#define SPR_DCFGR_NDP4 0x00000003 /* Four matchpoints supported */
#define SPR_DCFGR_NDP5 0x00000004 /* Five matchpoints supported */
#define SPR_DCFGR_NDP6 0x00000005 /* Six matchpoints supported */
#define SPR_DCFGR_NDP7 0x00000006 /* Seven matchpoints supported */
#define SPR_DCFGR_NDP8 0x00000007 /* Eight matchpoints supported */
#define SPR_DCFGR_WPCI 0x00000008 /* Watchpoint counters implemented */
#define MATCHPOINTS_TO_NDP(n) (1 == n ? SPR_DCFGR_NDP1 : \
2 == n ? SPR_DCFGR_NDP2 : \
3 == n ? SPR_DCFGR_NDP3 : \
4 == n ? SPR_DCFGR_NDP4 : \
5 == n ? SPR_DCFGR_NDP5 : \
6 == n ? SPR_DCFGR_NDP6 : \
7 == n ? SPR_DCFGR_NDP7 : SPR_DCFGR_NDP8)
#define MAX_MATCHPOINTS 8
#define MAX_WATCHPOINTS (MAX_MATCHPOINTS + 2)
/*
* Bit definitions for the Supervision Register
*/
#define SPR_SR_SM 0x00000001 /* Supervisor Mode */
#define SPR_SR_TEE 0x00000002 /* Tick timer Exception Enable */
#define SPR_SR_IEE 0x00000004 /* Interrupt Exception Enable */
#define SPR_SR_DCE 0x00000008 /* Data Cache Enable */
#define SPR_SR_ICE 0x00000010 /* Instruction Cache Enable */
#define SPR_SR_DME 0x00000020 /* Data MMU Enable */
#define SPR_SR_IME 0x00000040 /* Instruction MMU Enable */
#define SPR_SR_LEE 0x00000080 /* Little Endian Enable */
#define SPR_SR_CE 0x00000100 /* CID Enable */
#define SPR_SR_F 0x00000200 /* Condition Flag */
#define SPR_SR_CY 0x00000400 /* Carry flag */
#define SPR_SR_OV 0x00000800 /* Overflow flag */
#define SPR_SR_OVE 0x00001000 /* Overflow flag Exception */
#define SPR_SR_DSX 0x00002000 /* Delay Slot Exception */
#define SPR_SR_EPH 0x00004000 /* Exception Prefix High */
#define SPR_SR_FO 0x00008000 /* Fixed one */
#define SPR_SR_SUMRA 0x00010000 /* Supervisor SPR read access */
#define SPR_SR_RES 0x0ffe0000 /* Reserved */
#define SPR_SR_CID 0xf0000000 /* Context ID */
/*
* Bit definitions for the Data MMU Control Register
*/
#define SPR_DMMUCR_P2S 0x0000003e /* Level 2 Page Size */
#define SPR_DMMUCR_P1S 0x000007c0 /* Level 1 Page Size */
#define SPR_DMMUCR_VADDR_WIDTH 0x0000f800 /* Virtual ADDR Width */
#define SPR_DMMUCR_PADDR_WIDTH 0x000f0000 /* Physical ADDR Width */
/*
* Bit definitions for the Instruction MMU Control Register
*/
#define SPR_IMMUCR_P2S 0x0000003e /* Level 2 Page Size */
#define SPR_IMMUCR_P1S 0x000007c0 /* Level 1 Page Size */
#define SPR_IMMUCR_VADDR_WIDTH 0x0000f800 /* Virtual ADDR Width */
#define SPR_IMMUCR_PADDR_WIDTH 0x000f0000 /* Physical ADDR Width */
/*
* Bit definitions for the Data TLB Match Register
*/
#define SPR_DTLBMR_V 0x00000001 /* Valid */
#define SPR_DTLBMR_PL1 0x00000002 /* Page Level 1 (if 0 then PL2) */
#define SPR_DTLBMR_CID 0x0000003c /* Context ID */
#define SPR_DTLBMR_LRU 0x000000c0 /* Least Recently Used */
#define SPR_DTLBMR_VPN 0xfffff000 /* Virtual Page Number */
/*
* Bit definitions for the Data TLB Translate Register
*/
#define SPR_DTLBTR_CC 0x00000001 /* Cache Coherency */
#define SPR_DTLBTR_CI 0x00000002 /* Cache Inhibit */
#define SPR_DTLBTR_WBC 0x00000004 /* Write-Back Cache */
#define SPR_DTLBTR_WOM 0x00000008 /* Weakly-Ordered Memory */
#define SPR_DTLBTR_A 0x00000010 /* Accessed */
#define SPR_DTLBTR_D 0x00000020 /* Dirty */
#define SPR_DTLBTR_URE 0x00000040 /* User Read Enable */
#define SPR_DTLBTR_UWE 0x00000080 /* User Write Enable */
#define SPR_DTLBTR_SRE 0x00000100 /* Supervisor Read Enable */
#define SPR_DTLBTR_SWE 0x00000200 /* Supervisor Write Enable */
#define SPR_DTLBTR_PPN 0xfffff000 /* Physical Page Number */
/*
* Bit definitions for the Instruction TLB Match Register
*/
#define SPR_ITLBMR_V 0x00000001 /* Valid */
#define SPR_ITLBMR_PL1 0x00000002 /* Page Level 1 (if 0 then PL2) */
#define SPR_ITLBMR_CID 0x0000003c /* Context ID */
#define SPR_ITLBMR_LRU 0x000000c0 /* Least Recently Used */
#define SPR_ITLBMR_VPN 0xfffff000 /* Virtual Page Number */
/*
* Bit definitions for the Instruction TLB Translate Register
*/
#define SPR_ITLBTR_CC 0x00000001 /* Cache Coherency */
#define SPR_ITLBTR_CI 0x00000002 /* Cache Inhibit */
#define SPR_ITLBTR_WBC 0x00000004 /* Write-Back Cache */
#define SPR_ITLBTR_WOM 0x00000008 /* Weakly-Ordered Memory */
#define SPR_ITLBTR_A 0x00000010 /* Accessed */
#define SPR_ITLBTR_D 0x00000020 /* Dirty */
#define SPR_ITLBTR_SXE 0x00000040 /* User Read Enable */
#define SPR_ITLBTR_UXE 0x00000080 /* User Write Enable */
#define SPR_ITLBTR_PPN 0xfffff000 /* Physical Page Number */
/*
* Bit definitions for Data Cache Control register
*/
#define SPR_DCCR_EW 0x000000ff /* Enable ways */
/*
* Bit definitions for Insn Cache Control register
*/
#define SPR_ICCR_EW 0x000000ff /* Enable ways */
/*
* Bit definitions for Data Cache Configuration Register
*/
#define SPR_DCCFGR_NCW 0x00000007
#define SPR_DCCFGR_NCS 0x00000078
#define SPR_DCCFGR_CBS 0x00000080
#define SPR_DCCFGR_CWS 0x00000100
#define SPR_DCCFGR_CCRI 0x00000200
#define SPR_DCCFGR_CBIRI 0x00000400
#define SPR_DCCFGR_CBPRI 0x00000800
#define SPR_DCCFGR_CBLRI 0x00001000
#define SPR_DCCFGR_CBFRI 0x00002000
#define SPR_DCCFGR_CBWBRI 0x00004000
#define SPR_DCCFGR_NCW_OFF 0
#define SPR_DCCFGR_NCS_OFF 3
#define SPR_DCCFGR_CBS_OFF 7
/*
* Bit definitions for Instruction Cache Configuration Register
*/
#define SPR_ICCFGR_NCW 0x00000007
#define SPR_ICCFGR_NCS 0x00000078
#define SPR_ICCFGR_CBS 0x00000080
#define SPR_ICCFGR_CCRI 0x00000200
#define SPR_ICCFGR_CBIRI 0x00000400
#define SPR_ICCFGR_CBPRI 0x00000800
#define SPR_ICCFGR_CBLRI 0x00001000
#define SPR_ICCFGR_NCW_OFF 0
#define SPR_ICCFGR_NCS_OFF 3
#define SPR_ICCFGR_CBS_OFF 7
/*
* Bit definitions for Data MMU Configuration Register
*/
#define SPR_DMMUCFGR_NTW 0x00000003
#define SPR_DMMUCFGR_NTS 0x0000001C
#define SPR_DMMUCFGR_NAE 0x000000E0
#define SPR_DMMUCFGR_CRI 0x00000100
#define SPR_DMMUCFGR_PRI 0x00000200
#define SPR_DMMUCFGR_TEIRI 0x00000400
#define SPR_DMMUCFGR_HTR 0x00000800
#define SPR_DMMUCFGR_NTW_OFF 0
#define SPR_DMMUCFGR_NTS_OFF 2
/*
* Bit definitions for Instruction MMU Configuration Register
*/
#define SPR_IMMUCFGR_NTW 0x00000003
#define SPR_IMMUCFGR_NTS 0x0000001C
#define SPR_IMMUCFGR_NAE 0x000000E0
#define SPR_IMMUCFGR_CRI 0x00000100
#define SPR_IMMUCFGR_PRI 0x00000200
#define SPR_IMMUCFGR_TEIRI 0x00000400
#define SPR_IMMUCFGR_HTR 0x00000800
#define SPR_IMMUCFGR_NTW_OFF 0
#define SPR_IMMUCFGR_NTS_OFF 2
/*
* Bit definitions for Debug Control registers
*/
#define SPR_DCR_DP 0x00000001 /* DVR/DCR present */
#define SPR_DCR_CC 0x0000000e /* Compare condition */
#define SPR_DCR_SC 0x00000010 /* Signed compare */
#define SPR_DCR_CT 0x000000e0 /* Compare to */
/* Bit results with SPR_DCR_CC mask */
#define SPR_DCR_CC_MASKED 0x00000000
#define SPR_DCR_CC_EQUAL 0x00000002
#define SPR_DCR_CC_LESS 0x00000004
#define SPR_DCR_CC_LESSE 0x00000006
#define SPR_DCR_CC_GREAT 0x00000008
#define SPR_DCR_CC_GREATE 0x0000000a
#define SPR_DCR_CC_NEQUAL 0x0000000c
/* Bit results with SPR_DCR_CT mask */
#define SPR_DCR_CT_DISABLED 0x00000000
#define SPR_DCR_CT_IFEA 0x00000020
#define SPR_DCR_CT_LEA 0x00000040
#define SPR_DCR_CT_SEA 0x00000060
#define SPR_DCR_CT_LD 0x00000080
#define SPR_DCR_CT_SD 0x000000a0
#define SPR_DCR_CT_LSEA 0x000000c0
#define SPR_DCR_CT_LSD 0x000000e0
/*
* Bit definitions for Debug Mode 1 register
*/
#define SPR_DMR1_CW 0x000fffff /* Chain register pair data */
#define SPR_DMR1_CW0_AND 0x00000001
#define SPR_DMR1_CW0_OR 0x00000002
#define SPR_DMR1_CW0 (SPR_DMR1_CW0_AND | SPR_DMR1_CW0_OR)
#define SPR_DMR1_CW1_AND 0x00000004
#define SPR_DMR1_CW1_OR 0x00000008
#define SPR_DMR1_CW1 (SPR_DMR1_CW1_AND | SPR_DMR1_CW1_OR)
#define SPR_DMR1_CW2_AND 0x00000010
#define SPR_DMR1_CW2_OR 0x00000020
#define SPR_DMR1_CW2 (SPR_DMR1_CW2_AND | SPR_DMR1_CW2_OR)
#define SPR_DMR1_CW3_AND 0x00000040
#define SPR_DMR1_CW3_OR 0x00000080
#define SPR_DMR1_CW3 (SPR_DMR1_CW3_AND | SPR_DMR1_CW3_OR)
#define SPR_DMR1_CW4_AND 0x00000100
#define SPR_DMR1_CW4_OR 0x00000200
#define SPR_DMR1_CW4 (SPR_DMR1_CW4_AND | SPR_DMR1_CW4_OR)
#define SPR_DMR1_CW5_AND 0x00000400
#define SPR_DMR1_CW5_OR 0x00000800
#define SPR_DMR1_CW5 (SPR_DMR1_CW5_AND | SPR_DMR1_CW5_OR)
#define SPR_DMR1_CW6_AND 0x00001000
#define SPR_DMR1_CW6_OR 0x00002000
#define SPR_DMR1_CW6 (SPR_DMR1_CW6_AND | SPR_DMR1_CW6_OR)
#define SPR_DMR1_CW7_AND 0x00004000
#define SPR_DMR1_CW7_OR 0x00008000
#define SPR_DMR1_CW7 (SPR_DMR1_CW7_AND | SPR_DMR1_CW7_OR)
#define SPR_DMR1_CW8_AND 0x00010000
#define SPR_DMR1_CW8_OR 0x00020000
#define SPR_DMR1_CW8 (SPR_DMR1_CW8_AND | SPR_DMR1_CW8_OR)
#define SPR_DMR1_CW9_AND 0x00040000
#define SPR_DMR1_CW9_OR 0x00080000
#define SPR_DMR1_CW9 (SPR_DMR1_CW9_AND | SPR_DMR1_CW9_OR)
#define SPR_DMR1_RES1 0x00300000 /* Reserved */
#define SPR_DMR1_ST 0x00400000 /* Single-step trace*/
#define SPR_DMR1_BT 0x00800000 /* Branch trace */
#define SPR_DMR1_RES2 0xff000000 /* Reserved */
/*
* Bit definitions for Debug Mode 2 register. AWTC and WGB corrected by JPB
*/
#define SPR_DMR2_WCE0 0x00000001 /* Watchpoint counter 0 enable */
#define SPR_DMR2_WCE1 0x00000002 /* Watchpoint counter 0 enable */
#define SPR_DMR2_AWTC 0x00000ffc /* Assign watchpoints to counters */
#define SPR_DMR2_AWTC_OFF 2 /* Bit offset to AWTC field */
#define SPR_DMR2_WGB 0x003ff000 /* Watch generating breakpoint */
#define SPR_DMR2_WGB_OFF 12 /* Bit offset to WGB field */
#define SPR_DMR2_WBS 0xffc00000 /* Watchpoint status */
#define SPR_DMR2_WBS_OFF 22 /* Bit offset to WBS field */
/*
* Bit definitions for Debug watchpoint counter registers
*/
#define SPR_DWCR_COUNT 0x0000ffff /* Count */
#define SPR_DWCR_MATCH 0xffff0000 /* Match */
#define SPR_DWCR_MATCH_OFF 16 /* Match bit offset */
/*
* Bit definitions for Debug stop register
*
*/
#define SPR_DSR_RSTE 0x00000001 /* Reset exception */
#define SPR_DSR_BUSEE 0x00000002 /* Bus error exception */
#define SPR_DSR_DPFE 0x00000004 /* Data Page Fault exception */
#define SPR_DSR_IPFE 0x00000008 /* Insn Page Fault exception */
#define SPR_DSR_TTE 0x00000010 /* Tick Timer exception */
#define SPR_DSR_AE 0x00000020 /* Alignment exception */
#define SPR_DSR_IIE 0x00000040 /* Illegal Instruction exception */
#define SPR_DSR_IE 0x00000080 /* Interrupt exception */
#define SPR_DSR_DME 0x00000100 /* DTLB miss exception */
#define SPR_DSR_IME 0x00000200 /* ITLB miss exception */
#define SPR_DSR_RE 0x00000400 /* Range exception */
#define SPR_DSR_SCE 0x00000800 /* System call exception */
#define SPR_DSR_FPE 0x00001000 /* Floating Point Exception */
#define SPR_DSR_TE 0x00002000 /* Trap exception */
/*
* Bit definitions for Debug reason register
*/
#define SPR_DRR_RSTE 0x00000001 /* Reset exception */
#define SPR_DRR_BUSEE 0x00000002 /* Bus error exception */
#define SPR_DRR_DPFE 0x00000004 /* Data Page Fault exception */
#define SPR_DRR_IPFE 0x00000008 /* Insn Page Fault exception */
#define SPR_DRR_TTE 0x00000010 /* Tick Timer exception */
#define SPR_DRR_AE 0x00000020 /* Alignment exception */
#define SPR_DRR_IIE 0x00000040 /* Illegal Instruction exception */
#define SPR_DRR_IE 0x00000080 /* Interrupt exception */
#define SPR_DRR_DME 0x00000100 /* DTLB miss exception */
#define SPR_DRR_IME 0x00000200 /* ITLB miss exception */
#define SPR_DRR_RE 0x00000400 /* Range exception */
#define SPR_DRR_SCE 0x00000800 /* System call exception */
#define SPR_DRR_FPE 0x00001000 /* Floating Point Exception */
#define SPR_DRR_TE 0x00002000 /* Trap exception */
/*
* Bit definitions for Performance counters mode registers
*/
#define SPR_PCMR_CP 0x00000001 /* Counter present */
#define SPR_PCMR_UMRA 0x00000002 /* User mode read access */
#define SPR_PCMR_CISM 0x00000004 /* Count in supervisor mode */
#define SPR_PCMR_CIUM 0x00000008 /* Count in user mode */
#define SPR_PCMR_LA 0x00000010 /* Load access event */
#define SPR_PCMR_SA 0x00000020 /* Store access event */
#define SPR_PCMR_IF 0x00000040 /* Instruction fetch event*/
#define SPR_PCMR_DCM 0x00000080 /* Data cache miss event */
#define SPR_PCMR_ICM 0x00000100 /* Insn cache miss event */
#define SPR_PCMR_IFS 0x00000200 /* Insn fetch stall event */
#define SPR_PCMR_LSUS 0x00000400 /* LSU stall event */
#define SPR_PCMR_BS 0x00000800 /* Branch stall event */
#define SPR_PCMR_DTLBM 0x00001000 /* DTLB miss event */
#define SPR_PCMR_ITLBM 0x00002000 /* ITLB miss event */
#define SPR_PCMR_DDS 0x00004000 /* Data dependency stall event */
#define SPR_PCMR_WPE 0x03ff8000 /* Watchpoint events */
/*
* Bit definitions for the Power management register
*/
#define SPR_PMR_SDF 0x0000000f /* Slow down factor */
#define SPR_PMR_DME 0x00000010 /* Doze mode enable */
#define SPR_PMR_SME 0x00000020 /* Sleep mode enable */
#define SPR_PMR_DCGE 0x00000040 /* Dynamic clock gating enable */
#define SPR_PMR_SUME 0x00000080 /* Suspend mode enable */
/*
* Bit definitions for PICMR
*/
#define SPR_PICMR_IUM 0xfffffffc /* Interrupt unmask */
/*
* Bit definitions for PICPR
*/
#define SPR_PICPR_IPRIO 0xfffffffc /* Interrupt priority */
/*
* Bit definitions for PICSR
*/
#define SPR_PICSR_IS 0xffffffff /* Interrupt status */
/*
* Bit definitions for Tick Timer Control Register
*/
#define SPR_TTCR_CNT 0xffffffff /* Count, time period */
#define SPR_TTMR_TP 0x0fffffff /* Time period */
#define SPR_TTMR_IP 0x10000000 /* Interrupt Pending */
#define SPR_TTMR_IE 0x20000000 /* Interrupt Enable */
#define SPR_TTMR_DI 0x00000000 /* Disabled */
#define SPR_TTMR_RT 0x40000000 /* Restart tick */
#define SPR_TTMR_SR 0x80000000 /* Single run */
#define SPR_TTMR_CR 0xc0000000 /* Continuous run */
#define SPR_TTMR_M 0xc0000000 /* Tick mode */
/*
* Bit definitions for the FP Control Status Register
*/
#define SPR_FPCSR_FPEE 0x00000001 /* Floating Point Exception Enable */
#define SPR_FPCSR_RM 0x00000006 /* Rounding Mode */
#define SPR_FPCSR_OVF 0x00000008 /* Overflow Flag */
#define SPR_FPCSR_UNF 0x00000010 /* Underflow Flag */
#define SPR_FPCSR_SNF 0x00000020 /* SNAN Flag */
#define SPR_FPCSR_QNF 0x00000040 /* QNAN Flag */
#define SPR_FPCSR_ZF 0x00000080 /* Zero Flag */
#define SPR_FPCSR_IXF 0x00000100 /* Inexact Flag */
#define SPR_FPCSR_IVF 0x00000200 /* Invalid Flag */
#define SPR_FPCSR_INF 0x00000400 /* Infinity Flag */
#define SPR_FPCSR_DZF 0x00000800 /* Divide By Zero Flag */
#define SPR_FPCSR_ALLF (SPR_FPCSR_OVF | SPR_FPCSR_UNF | SPR_FPCSR_SNF | \
SPR_FPCSR_QNF | SPR_FPCSR_ZF | SPR_FPCSR_IXF | \
SPR_FPCSR_IVF | SPR_FPCSR_INF | SPR_FPCSR_DZF)
#define FPCSR_RM_RN (0<<1)
#define FPCSR_RM_RZ (1<<1)
#define FPCSR_RM_RIP (2<<1)
#define FPCSR_RM_RIN (3<<1)
/*
* l.nop constants
*/
#define NOP_NOP 0x0000 /* Normal nop instruction */
#define NOP_EXIT 0x0001 /* End of simulation */
#define NOP_REPORT 0x0002 /* Simple report */
#define NOP_PUTC 0x0004 /* Simputc instruction */
#define NOP_CNT_RESET 0x0005 /* Reset statistics counters */
#define NOP_GET_TICKS 0x0006 /* Get # ticks running */
#define NOP_GET_PS 0x0007 /* Get picosecs/cycle */
#define NOP_REPORT_FIRST 0x0400 /* Report with number */
#define NOP_REPORT_LAST 0x03ff /* Report with number */
#endif /* SPR_DEFS__H */

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arch/openrisc/include/asm/string.h
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#ifndef __ASM_OPENRISC_STRING_H
#define __ASM_OPENRISC_STRING_H
#endif

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arch/openrisc/include/asm/system.h
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/*
* (C) Copyright 2011, Julius Baxter <julius@opencores.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_OPENRISC_SYSTEM_H
#define __ASM_OPENRISC_SYSTEM_H
#include <asm/spr-defs.h>
static inline unsigned long mfspr(unsigned long add)
{
unsigned long ret;
__asm__ __volatile__ ("l.mfspr %0,r0,%1" : "=r" (ret) : "K" (add));
return ret;
}
static inline void mtspr(unsigned long add, unsigned long val)
{
__asm__ __volatile__ ("l.mtspr r0,%1,%0" : : "K" (add), "r" (val));
}
#endif /* __ASM_OPENRISC_SYSTEM_H */

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arch/openrisc/include/asm/types.h
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/*
* (C) Copyright 2011, Julius Baxter <julius@opencores.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _ASM_TYPES_H
#define _ASM_TYPES_H
/*
* This file is never included by application software unless
* explicitly requested (e.g., via linux/types.h) in which case the
* application is Linux specific so (user-) name space pollution is
* not a major issue. However, for interoperability, libraries still
* need to be careful to avoid a name clashes.
*/
typedef unsigned short umode_t;
/*
* __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
* header files exported to user space
*/
typedef __signed__ char __s8;
typedef unsigned char __u8;
typedef __signed__ short __s16;
typedef unsigned short __u16;
typedef __signed__ int __s32;
typedef unsigned int __u32;
#if defined(__GNUC__)
__extension__ typedef __signed__ long long __s64;
__extension__ typedef unsigned long long __u64;
#endif
/*
* These aren't exported outside the kernel to avoid name space clashes
*/
#ifdef __KERNEL__
typedef signed char s8;
typedef unsigned char u8;
typedef signed short s16;
typedef unsigned short u16;
typedef signed int s32;
typedef unsigned int u32;
typedef signed long long s64;
typedef unsigned long long u64;
#define BITS_PER_LONG 32
/* Dma addresses are 32-bits wide. */
typedef u32 dma_addr_t;
typedef unsigned long phys_addr_t;
typedef unsigned long phys_size_t;
#endif /* __KERNEL__ */
#endif /* _ASM_TYPES_H */

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arch/openrisc/include/asm/u-boot.h
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/*
* (C) Copyright 2003
* Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*
********************************************************************
* NOTE: This header file defines an interface to U-Boot. Including
* this (unmodified) header file in another file is considered normal
* use of U-Boot, and does *not* fall under the heading of "derived
* work".
********************************************************************
*/
#ifndef _U_BOOT_H_
#define _U_BOOT_H_
typedef struct bd_info {
unsigned long bi_arch_number; /* unique id for this board */
unsigned long bi_boot_params; /* where this board expects params */
unsigned long bi_memstart; /* start of DRAM memory */
phys_size_t bi_memsize; /* size of DRAM memory in bytes */
unsigned long bi_flashstart; /* start of FLASH memory */
unsigned long bi_flashsize; /* size of FLASH memory */
unsigned long bi_flashoffset; /* reserved area for startup monitor */
} bd_t;
#define IH_ARCH_DEFAULT IH_ARCH_OPENRISC
#endif /* _U_BOOT_H_ */

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arch/openrisc/include/asm/unaligned.h
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#include <asm-generic/unaligned.h>

9
arch/openrisc/lib/Makefile
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#
# (C) Copyright 2003-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# SPDX-License-Identifier: GPL-2.0+
#
obj-$(CONFIG_CMD_BOOTM) += bootm.o
obj-y += timer.o

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arch/openrisc/lib/bootm.c
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/*
* (C) Copyright 2011 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
*
* Based on microblaze implementation by:
* (C) Copyright 2007 Michal Simek
* (C) Copyright 2004 Atmark Techno, Inc.
*
* Michal SIMEK <monstr@monstr.eu>
* Yasushi SHOJI <yashi@atmark-techno.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <image.h>
#include <u-boot/zlib.h>
#include <asm/byteorder.h>
DECLARE_GLOBAL_DATA_PTR;
int do_bootm_linux(int flag, int argc, char * const argv[],
bootm_headers_t *images)
{
void (*kernel) (unsigned int);
ulong rd_data_start, rd_data_end;
/*
* allow the PREP bootm subcommand, it is required for bootm to work
*/
if (flag & BOOTM_STATE_OS_PREP)
return 0;
if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
return 1;
int ret;
char *of_flat_tree = NULL;
#if defined(CONFIG_OF_LIBFDT)
/* did generic code already find a device tree? */
if (images->ft_len)
of_flat_tree = images->ft_addr;
#endif
kernel = (void (*)(unsigned int))images->ep;
/* find ramdisk */
ret = boot_get_ramdisk(argc, argv, images, IH_ARCH_OPENRISC,
&rd_data_start, &rd_data_end);
if (ret)
return 1;
show_boot_progress(15);
if (!of_flat_tree && argc > 1)
of_flat_tree = (char *)simple_strtoul(argv[1], NULL, 16);
#ifdef DEBUG
printf("## Transferring control to Linux (at address 0x%08lx) " \
"ramdisk 0x%08lx, FDT 0x%08lx...\n",
(ulong) kernel, rd_data_start, (ulong) of_flat_tree);
#endif
if (dcache_status() || icache_status())
flush_cache((ulong)kernel, max(checkdcache(), checkicache()));
/*
* Linux Kernel Parameters (passing device tree):
* r3: pointer to the fdt, followed by the board info data
*/
kernel((unsigned int) of_flat_tree);
/* does not return */
return 1;
}

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arch/openrisc/lib/timer.c
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/*
* (C) Copyright 2011, Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
* (C) Copyright 2011, Julius Baxter <julius@opencores.org>
* (C) Copyright 2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/system.h>
#include <asm/openrisc_exc.h>
static ulong timestamp;
/* how many counter cycles in a jiffy */
#define TIMER_COUNTER_CYCLES (CONFIG_SYS_CLK_FREQ/CONFIG_SYS_OPENRISC_TMR_HZ)
/* how many ms elapses between each timer interrupt */
#define TIMER_TIMESTAMP_INC (1000/CONFIG_SYS_OPENRISC_TMR_HZ)
/* how many cycles per ms */
#define TIMER_CYCLES_MS (CONFIG_SYS_CLK_FREQ/1000)
/* how many cycles per us */
#define TIMER_CYCLES_US (CONFIG_SYS_CLK_FREQ/1000000uL)
void timer_isr(void)
{
timestamp += TIMER_TIMESTAMP_INC;
mtspr(SPR_TTMR, SPR_TTMR_IE | SPR_TTMR_RT |
(TIMER_COUNTER_CYCLES & SPR_TTMR_TP));
}
int timer_init(void)
{
/* Install timer exception handler */
exception_install_handler(EXC_TIMER, timer_isr);
/* Set up the timer for the first expiration. */
timestamp = 0;
mtspr(SPR_TTMR, SPR_TTMR_IE | SPR_TTMR_RT |
(TIMER_COUNTER_CYCLES & SPR_TTMR_TP));
/* Enable tick timer exception in supervisor register */
mtspr(SPR_SR, mfspr(SPR_SR) | SPR_SR_TEE);
return 0;
}
void reset_timer(void)
{
timestamp = 0;
mtspr(SPR_TTMR, SPR_TTMR_IE | SPR_TTMR_RT |
(TIMER_COUNTER_CYCLES & SPR_TTMR_TP));
}
/*
* The timer value in ms is calculated by taking the
* value accumulated by full timer revolutions plus the value
* accumulated in this period
*/
ulong get_timer(ulong base)
{
return timestamp + mfspr(SPR_TTCR)/TIMER_CYCLES_MS - base;
}
void set_timer(ulong t)
{
reset_timer();
timestamp = t;
}
unsigned long long get_ticks(void)
{
return get_timer(0);
}
ulong get_tbclk(void)
{
return CONFIG_SYS_HZ;
}
void __udelay(ulong usec)
{
ulong elapsed = 0;
ulong tick;
ulong last_tick;
last_tick = mfspr(SPR_TTCR);
while ((elapsed / TIMER_CYCLES_US) < usec) {
tick = mfspr(SPR_TTCR);
if (tick >= last_tick)
elapsed += (tick - last_tick);
else
elapsed += TIMER_COUNTER_CYCLES - (last_tick - tick);
last_tick = tick;
}
}

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board/openrisc/openrisc-generic/Kconfig
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if TARGET_OPENRISC_GENERIC
config SYS_BOARD
default "openrisc-generic"
config SYS_VENDOR
default "openrisc"
config SYS_CONFIG_NAME
default "openrisc-generic"
endif

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board/openrisc/openrisc-generic/MAINTAINERS
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OPENRISC-GENERIC BOARD
M: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
S: Maintained
F: board/openrisc/openrisc-generic/
F: include/configs/openrisc-generic.h
F: configs/openrisc-generic_defconfig

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board/openrisc/openrisc-generic/Makefile
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#
# (C) Copyright 2001-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# SPDX-License-Identifier: GPL-2.0+
#
obj-y := openrisc-generic.o

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board/openrisc/openrisc-generic/config.mk
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#
# (C) Copyright 2011, Julius Baxter <julius@opencores.org>
#
# SPDX-License-Identifier: GPL-2.0+
#
PLATFORM_CPPFLAGS += -mhard-mul -mhard-div
ifeq ($(debug),1)
PLATFORM_CPPFLAGS += -DDEBUG
endif

39
board/openrisc/openrisc-generic/openrisc-generic.c
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/*
* Based on nios2-generic.c:
* (C) Copyright 2005, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
* (C) Copyright 2010, Thomas Chou <thomas@wytron.com.tw>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <netdev.h>
int board_early_init_f(void)
{
return 0;
}
int checkboard(void)
{
printf("BOARD: %s\n", CONFIG_BOARD_NAME);
return 0;
}
phys_size_t initdram(int board_type)
{
return 0;
}
#ifdef CONFIG_CMD_NET
int board_eth_init(bd_t *bis)
{
int rc = 0;
#ifdef CONFIG_ETHOC
rc += ethoc_initialize(0, CONFIG_SYS_ETHOC_BASE);
#endif
return rc;
}
#endif

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board/openrisc/openrisc-generic/or1ksim.cfg
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/* sim.cfg -- Simulator configuration script file
Copyright (C) 2001-2002, Marko Mlinar, markom@opencores.org
This file is part of OpenRISC 1000 Architectural Simulator.
It contains the default configuration and help about configuring
the simulator.
* SPDX-License-Identifier: GPL-2.0+
*/
/* INTRODUCTION
The ork1sim has various parameters, that are set in configuration files
like this one. The user can switch between configurations at startup by
specifying the required configuration file with the -f <filename.cfg> option.
If no configuration file is specified or1ksim searches for the default
configuration file sim.cfg. First it searches for './sim.cfg'. If this
file is not found, it searches for '~/or1k/sim.cfg'. If this file is
not found too, it reverts to the built-in default configuration.
NOTE: Users should not rely on the built-in configuration, since the
default configuration may differ between version.
Rather create a configuration file that sets all critical values.
This file may contain (standard C) comments only - no // support.
Configure files may be be included, using:
include "file_name_to_include"
Like normal configuration files, the included file is divided into
sections. Each section is described in detail also.
Some section have subsections. One example of such a subsection is:
device <index>
instance specific parameters...
enddevice
which creates a device instance.
*/
/* MEMORY SECTION
This section specifies how the memory is generated and the blocks
it consists of.
type = random/unknown/pattern
Specifies the initial memory values.
'random' generates random memory using seed 'random_seed'.
'pattern' fills memory with 'pattern'.
'unknown' does not specify how memory should be generated,
leaving the memory in a undefined state. This is the fastest
option.
random_seed = <value>
random seed for randomizer, used if type = 'random'.
pattern = <value>
pattern to fill memory, used if type = 'pattern'.
nmemories = <value>
number of memory instances connected
baseaddr = <hex_value>
memory start address
size = <hex_value>
memory size
name = "<string>"
memory block name
ce = <value>
chip enable index of the memory instance
mc = <value>
memory controller this memory is connected to
delayr = <value>
cycles, required for read access, -1 if instance does not support reading
delayw = <value>
cycles, required for write access, -1 if instance does not support writing
log = "<filename>"
filename, where to log memory accesses to, no log, if log command is not specified
*/
section memory
pattern = 0x00
type = unknown /* Fastest */
name = "FLASH"
ce = 0
mc = 0
baseaddr = 0xf0000000
size = 0x01000000
delayr = 1
delayw = -1
end
section memory
pattern = 0x00
type = unknown /* Fastest */
name = "RAM"
ce = 1
mc = 0
baseaddr = 0x00000000
size = 0x02000000
delayr = 1
delayw = 1
end
section memory
pattern = 0x00
type = unknown /* Fastest */
name = "SRAM"
mc = 0
ce = 2
baseaddr = 0xa4000000
size = 0x00100000
delayr = 1
delayw = 2
end
/* IMMU SECTION
This section configures the Instruction Memory Manangement Unit
enabled = 0/1
'0': disabled
'1': enabled
(NOTE: UPR bit is set)
nsets = <value>
number of ITLB sets; must be power of two
nways = <value>
number of ITLB ways
pagesize = <value>
instruction page size; must be power of two
entrysize = <value>
instruction entry size in bytes
ustates = <value>
number of ITLB usage states (2, 3, 4 etc., max is 4)
hitdelay = <value>
number of cycles immu hit costs
missdelay = <value>
number of cycles immu miss costs
*/
section immu
enabled = 1
nsets = 64
nways = 1
pagesize = 8192
hitdelay = 0
missdelay = 0
end
/* DMMU SECTION
This section configures the Data Memory Manangement Unit
enabled = 0/1
'0': disabled
'1': enabled
(NOTE: UPR bit is set)
nsets = <value>
number of DTLB sets; must be power of two
nways = <value>
number of DTLB ways
pagesize = <value>
data page size; must be power of two
entrysize = <value>
data entry size in bytes
ustates = <value>
number of DTLB usage states (2, 3, 4 etc., max is 4)
hitdelay = <value>
number of cycles dmmu hit costs
missdelay = <value>
number of cycles dmmu miss costs
*/
section dmmu
enabled = 1
nsets = 64
nways = 1
pagesize = 8192
hitdelay = 0
missdelay = 0
end
/* IC SECTION
This section configures the Instruction Cache
enabled = 0/1
'0': disabled
'1': enabled
(NOTE: UPR bit is set)
nsets = <value>
number of IC sets; must be power of two
nways = <value>
number of IC ways
blocksize = <value>
IC block size in bytes; must be power of two
ustates = <value>
number of IC usage states (2, 3, 4 etc., max is 4)
hitdelay = <value>
number of cycles ic hit costs
missdelay = <value>
number of cycles ic miss costs
*/
section ic
enabled = 1
nsets = 512
nways = 1
blocksize = 16
hitdelay = 1
missdelay = 1
end
/* DC SECTION
This section configures the Data Cache
enabled = 0/1
'0': disabled
'1': enabled
(NOTE: UPR bit is set)
nsets = <value>
number of DC sets; must be power of two
nways = <value>
number of DC ways
blocksize = <value>
DC block size in bytes; must be power of two
ustates = <value>
number of DC usage states (2, 3, 4 etc., max is 4)
load_hitdelay = <value>
number of cycles dc load hit costs
load_missdelay = <value>
number of cycles dc load miss costs
store_hitdelay = <value>
number of cycles dc load hit costs
store_missdelay = <value>
number of cycles dc load miss costs
*/
section dc
enabled = 1
nsets = 512
nways = 1
blocksize = 16
load_hitdelay = 1
load_missdelay = 1
store_hitdelay = 1
store_missdelay = 1
end
/* SIM SECTION
This section specifies how or1ksim should behave.
verbose = 0/1
'0': don't print extra messages
'1': print extra messages
debug = 0-9
0 : no debug messages
1-9: debug message level.
higher numbers produce more messages
profile = 0/1
'0': don't generate profiling file 'sim.profile'
'1': don't generate profiling file 'sim.profile'
prof_fn = "<filename>"
optional filename for the profiling file.
valid only if 'profile' is set
mprofile = 0/1
'0': don't generate memory profiling file 'sim.mprofile'
'1': generate memory profiling file 'sim.mprofile'
mprof_fn = "<filename>"
optional filename for the memory profiling file.
valid only if 'mprofile' is set
history = 0/1
'0': don't track execution flow
'1': track execution flow
Execution flow can be tracked for the simulator's
'hist' command. Useful for back-trace debugging.
iprompt = 0/1
'0': start in <not interactive prompt> (so what do we start in ???)
'1': start in interactive prompt.
exe_log = 0/1
'0': don't generate execution log.
'1': generate execution log.
exe_log = default/hardware/simple/software
type of execution log, default is used when not specified
exe_log_start = <value>
index of first instruction to start logging, default = 0
exe_log_end = <value>
index of last instruction to end logging; not limited, if omitted
exe_log_marker = <value>
<value> specifies number of instructions before horizontal marker is
printed; if zero, markers are disabled (default)
exe_log_fn = "<filename>"
filename for the exection log file.
valid only if 'exe_log' is set
clkcycle = <value>[ps|ns|us|ms]
specifies time measurement for one cycle
*/
section sim
verbose = 1
debug = 0
profile = 0
history = 0
clkcycle = 10ns
end
/* SECTION VAPI
This section configures the Verification API, used for Advanced
Core Verification.
enabled = 0/1
'0': disbable VAPI server
'1': enable/start VAPI server
server_port = <value>
TCP/IP port to start VAPI server on
log_enabled = 0/1
'0': disable VAPI requests logging
'1': enable VAPI requests logging
hide_device_id = 0/1
'0': don't log device id (for compatability with old version)
'1': log device id
vapi_fn = <filename>
filename for the log file.
valid only if log_enabled is set
*/
section VAPI
enabled = 0
server_port = 9998
log_enabled = 0
vapi_log_fn = "vapi.log"
end
/* CPU SECTION
This section specifies various CPU parameters.
ver = <value>
rev = <value>
specifies version and revision of the CPU used
upr = <value>
changes the upr register
sr = <value>
sets the initial Supervision Register value
supervisor mode (SM) and fixed one (FO) set = 0x8001
exception prefix high (EPH, vectors@0xf0000000) = 0x4000
together, (SM | FO | EPH) = 0xc001
superscalar = 0/1
'0': CPU is scalar
'1': CPU is superscalar
(modify cpu/or32/execute.c to tune superscalar model)
hazards = 0/1
'0': don't track data hazards in superscalar CPU
'1': track data hazards in superscalar CPU
If tracked, data hazards can be displayed using the
simulator's 'r' command.
dependstats = 0/1
'0': don't calculate inter-instruction dependencies.
'1': calculate inter-instruction dependencies.
If calculated, inter-instruction dependencies can be
displayed using the simulator's 'stat' command.
sbuf_len = <value>
length of store buffer (<= 256), 0 = disabled
*/
section cpu
ver = 0x12
cfg = 0x00
rev = 0x01
sr = 0x8001 /*SPR_SR_FO | SPR_SR_SM | SPR_SR_EPH */
/* upr = */
superscalar = 0
hazards = 0
dependstats = 0
sbuf_len = 0
end
/* PM SECTION
This section specifies Power Management parameters
enabled = 0/1
'0': disable power management
'1': enable power management
*/
section pm
enabled = 0
end
/* BPB SECTION
This section specifies how branch prediction should behave.
enabled = 0/1
'0': disable branch prediction
'1': enable branch prediction
btic = 0/1
'0': disable branch target instruction cache model
'1': enable branch target instruction cache model
sbp_bf_fwd = 0/1
Static branch prediction for 'l.bf'
'0': don't use forward prediction
'1': use forward prediction
sbp_bnf_fwd = 0/1
Static branch prediction for 'l.bnf'
'0': don't use forward prediction
'1': use forward prediction
hitdelay = <value>
number of cycles bpb hit costs
missdelay = <value>
number of cycles bpb miss costs
*/
section bpb
enabled = 0
btic = 0
sbp_bf_fwd = 0
sbp_bnf_fwd = 0
hitdelay = 0
missdelay = 0
end
/* DEBUG SECTION
This sections specifies how the debug unit should behave.
enabled = 0/1
'0': disable debug unit
'1': enable debug unit
gdb_enabled = 0/1
'0': don't start gdb server
'1': start gdb server at port 'server_port'
server_port = <value>
TCP/IP port to start gdb server on
valid only if gdb_enabled is set
vapi_id = <hex_value>
Used to create "fake" vapi log file containing the JTAG proxy messages.
*/
section debug
enabled = 0
/* gdb_enabled = 0 */
/* server_port = 9999*/
rsp_enabled = 1
rsp_port = 50001
end
/* MC SECTION
This section configures the memory controller
enabled = 0/1
'0': disable memory controller
'1': enable memory controller
baseaddr = <hex_value>
address of first MC register
POC = <hex_value>
Power On Configuration register
index = <value>
Index of this memory controller amongst all the memory controllers
*/
section mc
enabled = 0
baseaddr = 0x93000000
POC = 0x00000008 /* Power on configuration register */
index = 0
end
/* UART SECTION
This section configures the UARTs
enabled = <0|1>
Enable/disable the peripheral. By default if it is enabled.
baseaddr = <hex_value>
address of first UART register for this device
channel = <channeltype>:<args>
The channel parameter indicates the source of received UART characters
and the sink for transmitted UART characters.
The <channeltype> can be either "file", "xterm", "tcp", "fd", or "tty"
(without quotes).
A) To send/receive characters from a pair of files, use a file
channel:
channel=file:<rxfile>,<txfile>
B) To create an interactive terminal window, use an xterm channel:
channel=xterm:[<xterm_arg>]*
C) To create a bidirectional tcp socket which one could, for example,
access via telnet, use a tcp channel:
channel=tcp:<port number>
D) To cause the UART to read/write from existing numeric file
descriptors, use an fd channel:
channel=fd:<rx file descriptor num>,<tx file descriptor num>
E) To connect the UART to a physical serial port, create a tty
channel:
channel=tty:device=/dev/ttyS0,baud=9600
irq = <value>
irq number for this device
16550 = 0/1
'0': this device is a UART16450
'1': this device is a UART16550
jitter = <value>
in msecs... time to block, -1 to disable it
vapi_id = <hex_value>
VAPI id of this instance
*/
section uart
enabled = 1
baseaddr = 0x90000000
irq = 2
/* channel = "file:uart0.rx,uart0.tx" */
/* channel = "tcp:10084" */
channel = "xterm:"
jitter = -1 /* async behaviour */
16550 = 1
end
/* DMA SECTION
This section configures the DMAs
enabled = <0|1>
Enable/disable the peripheral. By default if it is enabled.
baseaddr = <hex_value>
address of first DMA register for this device
irq = <value>
irq number for this device
vapi_id = <hex_value>
VAPI id of this instance
*/
section dma
enabled = 1
baseaddr = 0x9a000000
irq = 11
end
/* ETHERNET SECTION
This section configures the ETHERNETs
enabled = <0|1>
Enable/disable the peripheral. By default if it is enabled.
baseaddr = <hex_value>
address of first ethernet register for this device
dma = <value>
which controller is this ethernet "connected" to
irq = <value>
ethernet mac IRQ level
rtx_type = <value>
use 0 - file interface, 1 - socket interface
rx_channel = <value>
DMA channel used for RX
tx_channel = <value>
DMA channel used for TX
rxfile = "<filename>"
filename, where to read data from
txfile = "<filename>"
filename, where to write data to
sockif = "<ifacename>"
interface name of ethernet socket
vapi_id = <hex_value>
VAPI id of this instance
*/
section ethernet
enabled = 1
baseaddr = 0x92000000
/* dma = 0 */
irq = 4
rtx_type = "tap"
tap_dev = "tap0"
/* tx_channel = 0 */
/* rx_channel = 1 */
rxfile = "eth0.rx"
txfile = "eth0.tx"
sockif = "eth0"
end
/* GPIO SECTION
This section configures the GPIOs
enabled = <0|1>
Enable/disable the peripheral. By default if it is enabled.
baseaddr = <hex_value>
address of first GPIO register for this device
irq = <value>
irq number for this device
base_vapi_id = <hex_value>
first VAPI id of this instance
GPIO uses 8 consecutive VAPI IDs
*/
section gpio
enabled = 0
baseaddr = 0x91000000
irq = 3
base_vapi_id = 0x0200
end
/* VGA SECTION
This section configures the VGA/LCD controller
enabled = <0|1>
Enable/disable the peripheral. By default if it is enabled.
baseaddr = <hex_value>
address of first VGA register
irq = <value>
irq number for this device
refresh_rate = <value>
number of cycles between screen dumps
filename = "<filename>"
template name for generated names (e.g. "primary" produces "primary0023.bmp")
*/
section vga
enabled = 0
baseaddr = 0x97100000
irq = 8
refresh_rate = 100000
filename = "primary"
end
/* TICK TIMER SECTION
This section configures tick timer
enabled = 0/1
whether tick timer is enabled
*/
section pic
enabled = 1
edge_trigger = 1
end
/* FB SECTION
This section configures the frame buffer
enabled = <0|1>
Enable/disable the peripheral. By default if it is enabled.
baseaddr = <hex_value>
base address of frame buffer
paladdr = <hex_value>
base address of first palette entry
refresh_rate = <value>
number of cycles between screen dumps
filename = "<filename>"
template name for generated names (e.g. "primary" produces "primary0023.bmp")
*/
section fb
enabled = 0
baseaddr = 0x97000000
refresh_rate = 1000000
filename = "primary"
end
/* KBD SECTION
This section configures the PS/2 compatible keyboard
baseaddr = <hex_value>
base address of the keyboard device
rxfile = "<filename>"
filename, where to read data from
*/
section kbd
enabled = 0
irq = 5
baseaddr = 0x94000000
rxfile = "kbd.rx"
end
/* ATA SECTION
This section configures the ATA/ATAPI host controller
baseaddr = <hex_value>
address of first ATA register
enabled = <0|1>
Enable/disable the peripheral. By default if it is enabled.
irq = <value>
irq number for this device
debug = <value>
debug level for ata models.
0: no debug messages
1: verbose messages
3: normal messages (more messages than verbose)
5: debug messages (normal debug messages)
7: flow control messages (debug statemachine flows)
9: low priority message (display everything the code does)
dev_type0/1 = <value>
ata device 0 type
0: NO_CONNeCT: none (not connected)
1: FILE : simulated harddisk
2: LOCAL : local system harddisk
dev_file0/1 = "<filename>"
filename for simulated ATA device
valid only if dev_type0 == 1
dev_size0/1 = <value>
size of simulated hard-disk (in MBytes)
valid only if dev_type0 == 1
dev_packet0/1 = <value>
0: simulated ATA device does NOT implement PACKET command feature set
1: simulated ATA device does implement PACKET command feature set
FIXME: irq number
*/
section ata
enabled = 0
baseaddr = 0x9e000000
irq = 15
end

16
cmd/bdinfo.c
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@ -114,7 +114,7 @@ static inline void print_bi_flash(const bd_t *bd)
print_num("flash size ", (ulong)bd->bi_flashsize);
print_num("flash offset ", (ulong)bd->bi_flashoffset);
#elif defined(CONFIG_NIOS2) || defined(CONFIG_OPENRISC)
#elif defined(CONFIG_NIOS2)
print_num("flash start", (ulong)bd->bi_flashstart);
print_num("flash size", (ulong)bd->bi_flashsize);
print_num("flash offset", (ulong)bd->bi_flashoffset);
@ -443,20 +443,6 @@ int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return 0;
}
#elif defined(CONFIG_OPENRISC)
int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
bd_t *bd = gd->bd;
print_bi_mem(bd);
print_bi_flash(bd);
print_eth_ip_addr();
print_baudrate();
return 0;
}
#elif defined(CONFIG_ARC)
int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])

13
configs/openrisc-generic_defconfig
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@ -1,13 +0,0 @@
CONFIG_OPENRISC=y
CONFIG_TARGET_OPENRISC_GENERIC=y
CONFIG_SYS_CONSOLE_INFO_QUIET=y
# CONFIG_AUTOBOOT is not set
# CONFIG_CMD_IMLS is not set
# CONFIG_CMD_FLASH is not set
# CONFIG_CMD_SETEXPR is not set
CONFIG_CMD_DHCP=y
CONFIG_CMD_MII=y
CONFIG_CMD_PING=y
CONFIG_NETDEVICES=y
CONFIG_ETHOC=y
CONFIG_SYS_NS16550=y

14
examples/standalone/stubs.c
Unescape View File

@ -185,20 +185,6 @@ gd_t *global_data;
" lwi $r16, [$r16 + (%1)]\n" \
" jr $r16\n" \
: : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "$r16");
#elif defined(CONFIG_OPENRISC)
/*
* r10 holds the pointer to the global_data, r13 is a call-clobbered
* register
*/
#define EXPORT_FUNC(f, a, x, ...) \
asm volatile ( \
" .globl " #x "\n" \
#x ":\n" \
" l.lwz r13, %0(r10)\n" \
" l.lwz r13, %1(r13)\n" \
" l.jr r13\n" \
" l.nop\n" \
: : "i"(offsetof(gd_t, jt)), "i"(FO(x)) : "r13");
#elif defined(CONFIG_ARC)
/*
* r25 holds the pointer to the global_data. r10 is call clobbered.

124
include/configs/openrisc-generic.h
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@ -1,124 +0,0 @@
/*
* (C) Copyright 2011, Stefan Kristiansson, stefan.kristianssons@saunalahti.fi
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __CONFIG_H
#define __CONFIG_H
/*
* BOARD/CPU
*/
#define CONFIG_SYS_CLK_FREQ 50000000
#define CONFIG_SYS_RESET_ADDR 0x00000100
#define CONFIG_SYS_SDRAM_BASE 0x00000000
#define CONFIG_SYS_SDRAM_SIZE 0x02000000
#define CONFIG_SYS_CACHELINE_SIZE 16
#define CONFIG_SYS_UART_BASE 0x90000000
#define CONFIG_SYS_UART_FREQ CONFIG_SYS_CLK_FREQ
#define CONFIG_SYS_UART_BAUD 115200
#define CONFIG_BOARD_NAME "OpenRISC Generic"
#define CONFIG_SYS_MAX_FLASH_SECT 0
/*
* SERIAL
*/
# define CONFIG_SYS_NS16550_SERIAL
# define CONFIG_SYS_NS16550_REG_SIZE 1
# define CONFIG_CONS_INDEX 1
# define CONFIG_SYS_NS16550_COM1 (0x90000000)
# define CONFIG_SYS_NS16550_CLK CONFIG_SYS_CLK_FREQ
#define CONFIG_SYS_BAUDRATE_TABLE {CONFIG_BAUDRATE}
#define CONSOLE_ARG "console=console=ttyS0,115200\0"
/*
* Ethernet
*/
#define CONFIG_SYS_ETHOC_BASE 0x92000000
#define CONFIG_BOOTFILE "boot.img"
#define CONFIG_LOADADDR 0x100000 /* 1MB mark */
/*
* TIMER
*/
#define CONFIG_SYS_OPENRISC_TMR_HZ 100
/*
* Memory organisation:
*
* RAM start ---------------------------
* | ... |
* ---------------------------
* | Stack |
* ---------------------------
* | Global data |
* ---------------------------
* | Environment |
* ---------------------------
* | Monitor |
* RAM end ---------------------------
*/
/* We're running in RAM */
#define CONFIG_MONITOR_IS_IN_RAM
#define CONFIG_SYS_MONITOR_LEN 0x40000 /* Reserve 256k */
#define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_SDRAM_BASE + \
CONFIG_SYS_SDRAM_SIZE - \
CONFIG_SYS_MONITOR_LEN)
#define CONFIG_ENV_IS_NOWHERE
#define CONFIG_ENV_SIZE 0x20000 /* Total Size of Environment, 128KB */
#define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SIZE)
/*
* Global data object and stack pointer
*/
#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_ENV_ADDR \
- GENERATED_GBL_DATA_SIZE)
#define CONFIG_SYS_GBL_DATA_ADDR CONFIG_SYS_GBL_DATA_OFFSET
#define CONFIG_SYS_INIT_SP_ADDR CONFIG_SYS_GBL_DATA_OFFSET
#define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
#define CONFIG_SYS_STACK_LENGTH 0x10000 /* 64KB */
#define CONFIG_SYS_MALLOC_LEN 0x400000 /* 4MB */
#define CONFIG_SYS_MALLOC_BASE (CONFIG_SYS_INIT_SP_OFFSET \
- CONFIG_SYS_STACK_LENGTH \
- CONFIG_SYS_MALLOC_LEN)
/*
* MISC
*/
#define CONFIG_SYS_LONGHELP /* Provide extended help */
#define CONFIG_SYS_CBSIZE 256 /* Console I/O buf size */
#define CONFIG_SYS_MAXARGS 16 /* Max command args */
#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Bootarg buf size */
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
sizeof(CONFIG_SYS_PROMPT) + \
16) /* Print buf size */
#define CONFIG_SYS_LOAD_ADDR CONFIG_SYS_SDRAM_BASE
#define CONFIG_SYS_MEMTEST_START (CONFIG_SYS_SDRAM_BASE + 0x2000)
#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_INIT_SP_ADDR - 0x20000)
#define CONFIG_CMDLINE_EDITING
/*
* Command line configuration.
*/
#define CONFIG_CMD_IRQ
#define CONFIG_CMD_BSP
#define CONFIG_LMB
/*
* BOOTP options
*/
#define CONFIG_BOOTP_BOOTFILESIZE
#define CONFIG_BOOTP_BOOTPATH
#define CONFIG_BOOTP_GATEWAY
#define CONFIG_BOOTP_HOSTNAME
#endif /* __CONFIG_H */
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