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CRIS: Remove VCS simulator specific code

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The VCS simulator was a tool used in the development of the chip
and is no longer used or necessary.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
This commit is contained in:
Jesper Nilsson 2012-06-20 17:17:10 +02:00
parent 227c6fc296
commit d75d806cbb
14 changed files with 3 additions and 435 deletions
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5
arch/cris/Kconfig
View File

@ -137,11 +137,6 @@ config CRIS_MACH_ARTPEC3
endchoice
config ETRAX_VCS_SIM
bool "VCS Simulator"
help
Setup hardware to be run in the VCS simulator.
config ETRAX_ARCH_V10
bool
default y if ETRAX100LX || ETRAX100LX_V2

29
arch/cris/arch-v32/drivers/axisflashmap.c
View File

@ -329,7 +329,6 @@ static int __init init_axis_flash(void)
}
#endif
#ifndef CONFIG_ETRAX_VCS_SIM
main_mtd = flash_probe();
if (main_mtd)
printk(KERN_INFO "%s: 0x%08x bytes of NOR flash memory.\n",
@ -603,34 +602,7 @@ static int __init init_axis_flash(void)
"partition %d\n", part);
}
}
#endif /* CONFIG_EXTRAX_VCS_SIM */
#ifdef CONFIG_ETRAX_VCS_SIM
/* For simulator, always use a RAM partition.
* The rootfs will be found after the kernel in RAM,
* with romfs_start and romfs_end indicating location and size.
*/
struct mtd_info *mtd_ram;
mtd_ram = kmalloc(sizeof(struct mtd_info), GFP_KERNEL);
if (!mtd_ram) {
panic("axisflashmap: Couldn't allocate memory for "
"mtd_info!\n");
}
printk(KERN_INFO "axisflashmap: Adding RAM partition for romfs, "
"at %u, size %u\n",
(unsigned) romfs_start, (unsigned) romfs_length);
err = mtdram_init_device(mtd_ram, (void *)romfs_start,
romfs_length, "romfs");
if (err) {
panic("axisflashmap: Could not initialize MTD RAM "
"device!\n");
}
#endif /* CONFIG_EXTRAX_VCS_SIM */
#ifndef CONFIG_ETRAX_VCS_SIM
if (aux_mtd) {
aux_partition.size = aux_mtd->size;
err = mtd_device_register(aux_mtd, &aux_partition, 1);
@ -639,7 +611,6 @@ static int __init init_axis_flash(void)
"aux mtd device!\n");
}
#endif /* CONFIG_EXTRAX_VCS_SIM */
return err;
}

58
arch/cris/arch-v32/kernel/head.S
View File

@ -36,13 +36,6 @@
.global nand_boot
.global swapper_pg_dir
;; Dummy section to make it bootable with current VCS simulator
#ifdef CONFIG_ETRAX_VCS_SIM
.section ".boot", "ax"
ba tstart
nop
#endif
.text
tstart:
;; This is the entry point of the kernel. The CPU is currently in
@ -75,17 +68,10 @@ secondary_cpu_entry: /* Entry point for secondary CPUs */
| REG_FIELD(mmu, rw_mm_kbase_hi, base_c, 4) \
| REG_FIELD(mmu, rw_mm_kbase_hi, base_d, 5) \
| REG_FIELD(mmu, rw_mm_kbase_hi, base_b, 0xb), $r0
#elif !defined(CONFIG_ETRAX_VCS_SIM)
#else
move.d REG_FIELD(mmu, rw_mm_kbase_hi, base_e, 8) \
| REG_FIELD(mmu, rw_mm_kbase_hi, base_c, 4) \
| REG_FIELD(mmu, rw_mm_kbase_hi, base_b, 0xb), $r0
#else
;; Map the virtual DRAM to the RW eprom area at address 0.
;; Also map 0xa for the hook calls,
move.d REG_FIELD(mmu, rw_mm_kbase_hi, base_e, 8) \
| REG_FIELD(mmu, rw_mm_kbase_hi, base_c, 4) \
| REG_FIELD(mmu, rw_mm_kbase_hi, base_b, 0xb) \
| REG_FIELD(mmu, rw_mm_kbase_hi, base_a, 0xa), $r0
#endif
;; Temporary map of 0x40 -> 0x40 and 0x00 -> 0x00.
@ -126,27 +112,6 @@ secondary_cpu_entry: /* Entry point for secondary CPUs */
| REG_STATE(mmu, rw_mm_cfg, seg_2, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_1, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_0, linear), $r2
#elif !defined(CONFIG_ETRAX_VCS_SIM)
move.d REG_STATE(mmu, rw_mm_cfg, we, on) \
| REG_STATE(mmu, rw_mm_cfg, acc, on) \
| REG_STATE(mmu, rw_mm_cfg, ex, on) \
| REG_STATE(mmu, rw_mm_cfg, inv, on) \
| REG_STATE(mmu, rw_mm_cfg, seg_f, linear) \
| REG_STATE(mmu, rw_mm_cfg, seg_e, linear) \
| REG_STATE(mmu, rw_mm_cfg, seg_d, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_c, linear) \
| REG_STATE(mmu, rw_mm_cfg, seg_b, linear) \
| REG_STATE(mmu, rw_mm_cfg, seg_a, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_9, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_8, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_7, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_6, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_5, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_4, linear) \
| REG_STATE(mmu, rw_mm_cfg, seg_3, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_2, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_1, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_0, linear), $r2
#else
move.d REG_STATE(mmu, rw_mm_cfg, we, on) \
| REG_STATE(mmu, rw_mm_cfg, acc, on) \
@ -157,7 +122,7 @@ secondary_cpu_entry: /* Entry point for secondary CPUs */
| REG_STATE(mmu, rw_mm_cfg, seg_d, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_c, linear) \
| REG_STATE(mmu, rw_mm_cfg, seg_b, linear) \
| REG_STATE(mmu, rw_mm_cfg, seg_a, linear) \
| REG_STATE(mmu, rw_mm_cfg, seg_a, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_9, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_8, page) \
| REG_STATE(mmu, rw_mm_cfg, seg_7, page) \
@ -226,7 +191,6 @@ master_cpu:
move.d secondary_cpu_entry, $r1
move.d $r1, [$r0]
#endif
#ifndef CONFIG_ETRAX_VCS_SIM
; Check if starting from DRAM (network->RAM boot or unpacked
; compressed kernel), or directly from flash.
lapcq ., $r0
@ -234,7 +198,6 @@ master_cpu:
cmp.d 0x10000, $r0 ; Arbitrary, something above this code.
blo _inflash0
nop
#endif
jump _inram ; Jump to cached RAM.
nop
@ -326,7 +289,6 @@ move_cramfs:
move.d romfs_length, $r1
move.d $r0, [$r1]
#ifndef CONFIG_ETRAX_VCS_SIM
;; The kernel could have been unpacked to DRAM by the loader, but
;; the cramfs image could still be in the flash immediately
;; following the compressed kernel image. The loader passes the address
@ -335,10 +297,6 @@ move_cramfs:
cmp.d 0x0ffffff8, $r9
bhs _no_romfs_in_flash ; R9 points outside the flash area.
nop
#else
ba _no_romfs_in_flash
nop
#endif
;; cramfs rootfs might to be in flash. Check for it.
move.d [$r9], $r0 ; cramfs_super.magic
cmp.d CRAMFS_MAGIC, $r0
@ -396,7 +354,6 @@ _no_romfs_in_flash:
move.d romfs_length, $r3
move.d $r2, [$r3] ; store size at romfs_length
#ifndef CONFIG_ETRAX_VCS_SIM
add.d $r2, $r0 ; copy from end and downwards
add.d $r2, $r1
@ -410,7 +367,6 @@ _no_romfs_in_flash:
subq 1, $r2
bne 1b
nop
#endif
4:
;; BSS move done.
@ -455,7 +411,6 @@ no_command_line:
move.d etrax_irv, $r1 ; Set the exception base register and pointer.
move.d $r0, [$r1]
#ifndef CONFIG_ETRAX_VCS_SIM
;; Clear the BSS region from _bss_start to _end.
move.d __bss_start, $r0
move.d _end, $r1
@ -463,15 +418,6 @@ no_command_line:
cmp.d $r1, $r0
blo 1b
nop
#endif
#ifdef CONFIG_ETRAX_VCS_SIM
/* Set the watchdog timeout to something big. Will be removed when */
/* watchdog can be disabled with command line option */
move.d 0x7fffffff, $r10
jsr CPU_WATCHDOG_TIMEOUT
nop
#endif
; Initialize registers to increase determinism
move.d __bss_start, $r0

14
arch/cris/arch-v32/kernel/kgdb.c
View File

@ -381,23 +381,9 @@ static int read_register(char regno, unsigned int *valptr);
/* Serial port, reads one character. ETRAX 100 specific. from debugport.c */
int getDebugChar(void);
#ifdef CONFIG_ETRAX_VCS_SIM
int getDebugChar(void)
{
return socketread();
}
#endif
/* Serial port, writes one character. ETRAX 100 specific. from debugport.c */
void putDebugChar(int val);
#ifdef CONFIG_ETRAX_VCS_SIM
void putDebugChar(int val)
{
socketwrite((char *)&val, 1);
}
#endif
/* Returns the integer equivalent of a hexadecimal character. */
static int hex(char ch);

2
arch/cris/arch-v32/mach-a3/Makefile
View File

@ -1,10 +1,8 @@
# $Id: Makefile,v 1.3 2007/03/13 11:57:46 starvik Exp $
#
# Makefile for the linux kernel.
#
obj-y := dma.o pinmux.o io.o arbiter.o
obj-$(CONFIG_ETRAX_VCS_SIM) += vcs_hook.o
obj-$(CONFIG_CPU_FREQ) += cpufreq.o
clean:

103
arch/cris/arch-v32/mach-a3/vcs_hook.c
View File

@ -1,103 +0,0 @@
/*
* Simulator hook mechanism
*/
#include "vcs_hook.h"
#include <asm/io.h>
#include <stdarg.h>
#define HOOK_TRIG_ADDR 0xb7000000
#define HOOK_MEM_BASE_ADDR 0xce000000
static volatile unsigned *hook_base;
#define HOOK_DATA(offset) hook_base[offset]
#define VHOOK_DATA(offset) hook_base[offset]
#define HOOK_TRIG(funcid) \
do { \
*((unsigned *) HOOK_TRIG_ADDR) = funcid; \
} while (0)
#define HOOK_DATA_BYTE(offset) ((unsigned char *)hook_base)[offset]
static void hook_init(void)
{
static int first = 1;
if (first) {
first = 0;
hook_base = ioremap(HOOK_MEM_BASE_ADDR, 8192);
}
}
static unsigned hook_trig(unsigned id)
{
unsigned ret;
/* preempt_disable(); */
/* Dummy read from mem to make sure data has propagated to memory
* before trigging */
ret = *hook_base;
/* trigger hook */
HOOK_TRIG(id);
/* wait for call to finish */
while (VHOOK_DATA(0) > 0) ;
/* extract return value */
ret = VHOOK_DATA(1);
return ret;
}
int hook_call(unsigned id, unsigned pcnt, ...)
{
va_list ap;
int i;
unsigned ret;
hook_init();
HOOK_DATA(0) = id;
va_start(ap, pcnt);
for (i = 1; i <= pcnt; i++)
HOOK_DATA(i) = va_arg(ap, unsigned);
va_end(ap);
ret = hook_trig(id);
return ret;
}
int hook_call_str(unsigned id, unsigned size, const char *str)
{
int i;
unsigned ret;
hook_init();
HOOK_DATA(0) = id;
HOOK_DATA(1) = size;
for (i = 0; i < size; i++)
HOOK_DATA_BYTE(8 + i) = str[i];
HOOK_DATA_BYTE(8 + i) = 0;
ret = hook_trig(id);
return ret;
}
void print_str(const char *str)
{
int i;
/* find null at end of string */
for (i = 1; str[i]; i++) ;
hook_call(hook_print_str, i, str);
}
void CPU_WATCHDOG_TIMEOUT(unsigned t)
{
}

58
arch/cris/arch-v32/mach-a3/vcs_hook.h
View File

@ -1,58 +0,0 @@
/*
* Simulator hook call mechanism
*/
#ifndef __hook_h__
#define __hook_h__
int hook_call(unsigned id, unsigned pcnt, ...);
int hook_call_str(unsigned id, unsigned size, const char *str);
enum hook_ids {
hook_debug_on = 1,
hook_debug_off,
hook_stop_sim_ok,
hook_stop_sim_fail,
hook_alloc_shared,
hook_ptr_shared,
hook_free_shared,
hook_file2shared,
hook_cmp_shared,
hook_print_params,
hook_sim_time,
hook_stop_sim,
hook_kick_dog,
hook_dog_timeout,
hook_rand,
hook_srand,
hook_rand_range,
hook_print_str,
hook_print_hex,
hook_cmp_offset_shared,
hook_fill_random_shared,
hook_alloc_random_data,
hook_calloc_random_data,
hook_print_int,
hook_print_uint,
hook_fputc,
hook_init_fd,
hook_sbrk,
hook_print_context_descr,
hook_print_data_descr,
hook_print_group_descr,
hook_fill_shared,
hook_sl_srand,
hook_sl_rand_irange,
hook_sl_rand_urange,
hook_sl_sh_malloc_aligned,
hook_sl_sh_calloc_aligned,
hook_sl_sh_alloc_random_data,
hook_sl_sh_file2mem,
hook_sl_vera_mbox_handle,
hook_sl_vera_mbox_put,
hook_sl_vera_mbox_get,
hook_sl_system,
hook_sl_sh_hexdump
};
#endif

2
arch/cris/arch-v32/mach-fs/Makefile
View File

@ -1,10 +1,8 @@
# $Id: Makefile,v 1.3 2007/03/13 11:57:46 starvik Exp $
#
# Makefile for the linux kernel.
#
obj-y := dma.o pinmux.o io.o arbiter.o
obj-$(CONFIG_ETRAX_VCS_SIM) += vcs_hook.o
obj-$(CONFIG_CPU_FREQ) += cpufreq.o
clean:

100
arch/cris/arch-v32/mach-fs/vcs_hook.c
View File

@ -1,100 +0,0 @@
/*
* Call simulator hook. This is the part running in the
* simulated program.
*/
#include "vcs_hook.h"
#include <stdarg.h>
#include <arch-v32/hwregs/reg_map.h>
#include <arch-v32/hwregs/intr_vect_defs.h>
#define HOOK_TRIG_ADDR 0xb7000000 /* hook cvlog model reg address */
#define HOOK_MEM_BASE_ADDR 0xa0000000 /* csp4 (shared mem) base addr */
#define HOOK_DATA(offset) ((unsigned *)HOOK_MEM_BASE_ADDR)[offset]
#define VHOOK_DATA(offset) ((volatile unsigned *)HOOK_MEM_BASE_ADDR)[offset]
#define HOOK_TRIG(funcid) \
do { \
*((unsigned *) HOOK_TRIG_ADDR) = funcid; \
} while (0)
#define HOOK_DATA_BYTE(offset) ((unsigned char *)HOOK_MEM_BASE_ADDR)[offset]
int hook_call(unsigned id, unsigned pcnt, ...)
{
va_list ap;
unsigned i;
unsigned ret;
#ifdef USING_SOS
PREEMPT_OFF_SAVE();
#endif
/* pass parameters */
HOOK_DATA(0) = id;
/* Have to make hook_print_str a special case since we call with a
* parameter of byte type. Should perhaps be a separate
* hook_call. */
if (id == hook_print_str) {
int i;
char *str;
HOOK_DATA(1) = pcnt;
va_start(ap, pcnt);
str = (char *)va_arg(ap, unsigned);
for (i = 0; i != pcnt; i++)
HOOK_DATA_BYTE(8 + i) = str[i];
HOOK_DATA_BYTE(8 + i) = 0; /* null byte */
} else {
va_start(ap, pcnt);
for (i = 1; i <= pcnt; i++)
HOOK_DATA(i) = va_arg(ap, unsigned);
va_end(ap);
}
/* read from mem to make sure data has propagated to memory before
* trigging */
ret = *((volatile unsigned *)HOOK_MEM_BASE_ADDR);
/* trigger hook */
HOOK_TRIG(id);
/* wait for call to finish */
while (VHOOK_DATA(0) > 0) ;
/* extract return value */
ret = VHOOK_DATA(1);
#ifdef USING_SOS
PREEMPT_RESTORE();
#endif
return ret;
}
unsigned hook_buf(unsigned i)
{
return (HOOK_DATA(i));
}
void print_str(const char *str)
{
int i;
/* find null at end of string */
for (i = 1; str[i]; i++) ;
hook_call(hook_print_str, i, str);
}
void CPU_KICK_DOG(void)
{
(void)hook_call(hook_kick_dog, 0);
}
void CPU_WATCHDOG_TIMEOUT(unsigned t)
{
(void)hook_call(hook_dog_timeout, 1, t);
}

42
arch/cris/arch-v32/mach-fs/vcs_hook.h
View File

@ -1,42 +0,0 @@
/*
* Call simulator hook functions
*/
#ifndef HOOK_H
#define HOOK_H
int hook_call(unsigned id, unsigned pcnt, ...);
enum hook_ids {
hook_debug_on = 1,
hook_debug_off,
hook_stop_sim_ok,
hook_stop_sim_fail,
hook_alloc_shared,
hook_ptr_shared,
hook_free_shared,
hook_file2shared,
hook_cmp_shared,
hook_print_params,
hook_sim_time,
hook_stop_sim,
hook_kick_dog,
hook_dog_timeout,
hook_rand,
hook_srand,
hook_rand_range,
hook_print_str,
hook_print_hex,
hook_cmp_offset_shared,
hook_fill_random_shared,
hook_alloc_random_data,
hook_calloc_random_data,
hook_print_int,
hook_print_uint,
hook_fputc,
hook_init_fd,
hook_sbrk
};
#endif

8
arch/cris/arch-v32/mm/init.c
View File

@ -73,11 +73,7 @@ void __init cris_mmu_init(void)
#endif
REG_STATE(mmu, rw_mm_cfg, seg_c, linear) |
REG_STATE(mmu, rw_mm_cfg, seg_b, linear) |
#ifndef CONFIG_ETRAX_VCS_SIM
REG_STATE(mmu, rw_mm_cfg, seg_a, page) |
#else
REG_STATE(mmu, rw_mm_cfg, seg_a, linear) |
#endif
REG_STATE(mmu, rw_mm_cfg, seg_9, page) |
REG_STATE(mmu, rw_mm_cfg, seg_8, page) |
REG_STATE(mmu, rw_mm_cfg, seg_7, page) |
@ -100,11 +96,7 @@ void __init cris_mmu_init(void)
#endif
REG_FIELD(mmu, rw_mm_kbase_hi, base_c, 0x4) |
REG_FIELD(mmu, rw_mm_kbase_hi, base_b, 0xb) |
#ifndef CONFIG_ETRAX_VCS_SIM
REG_FIELD(mmu, rw_mm_kbase_hi, base_a, 0x0) |
#else
REG_FIELD(mmu, rw_mm_kbase_hi, base_a, 0xa) |
#endif
REG_FIELD(mmu, rw_mm_kbase_hi, base_9, 0x0) |
REG_FIELD(mmu, rw_mm_kbase_hi, base_8, 0x0));

5
arch/cris/include/arch-v32/arch/page.h
View File

@ -11,13 +11,8 @@
* selected bit it's possible to convert between KSEG_x and 0x40000000 where the
* DRAM really resides. DRAM is virtually at 0xc.
*/
#ifndef CONFIG_ETRAX_VCS_SIM
#define __pa(x) ((unsigned long)(x) & 0x7fffffff)
#define __va(x) ((void *)((unsigned long)(x) | 0x80000000))
#else
#define __pa(x) ((unsigned long)(x) & 0x3fffffff)
#define __va(x) ((void *)((unsigned long)(x) | 0xc0000000))
#endif
#define VM_STACK_DEFAULT_FLAGS (VM_READ | VM_WRITE | \
VM_MAYREAD | VM_MAYWRITE)

6
arch/cris/include/arch-v32/arch/processor.h
View File

@ -21,13 +21,9 @@ struct thread_struct {
/*
* User-space process size. This is hardcoded into a few places, so don't
* changed it unless everything's clear!
* change it unless everything's clear!
*/
#ifndef CONFIG_ETRAX_VCS_SIM
#define TASK_SIZE (0xB0000000UL)
#else
#define TASK_SIZE (0xA0000000UL)
#endif
/* CCS I=1, enable interrupts. */
#define INIT_THREAD { 0, 0, (1 << I_CCS_BITNR) }

6
arch/cris/include/arch-v32/mach-fs/mach/startup.inc
View File

@ -71,12 +71,6 @@
move.d REG_ADDR(bif_core, regi_bif_core, rw_grp4_cfg), $r0
move.d CONFIG_ETRAX_MEM_GRP4_CONFIG, $r1
move.d $r1, [$r0]
#ifdef CONFIG_ETRAX_VCS_SIM
;; Set up minimal flash waitstates
move.d 0, $r10
move.d REG_ADDR(bif_core, regi_bif_core, rw_grp1_cfg), $r11
move.d $r10, [$r11]
#endif
.endm
#endif