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
}
#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",
"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);
"aux mtd device!\n");
}
-#endif /* CONFIG_EXTRAX_VCS_SIM */
return err;
}
.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
| 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)
- 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
+ | REG_FIELD(mmu, rw_mm_kbase_hi, base_b, 0xb), $r0
#endif
;; Temporary map of 0x40 -> 0x40 and 0x00 -> 0x00.
| 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) \
| 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) \
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
cmp.d 0x10000, $r0 ; Arbitrary, something above this code.
blo _inflash0
nop
-#endif
jump _inram ; Jump to cached RAM.
nop
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
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
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
subq 1, $r2
bne 1b
nop
-#endif
4:
;; BSS move done.
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
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
/* 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);
-# $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:
+++ /dev/null
-/*
- * 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)
-{
-}
+++ /dev/null
-/*
- * 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
-# $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:
+++ /dev/null
-/*
- * 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);
-}
-
+++ /dev/null
-/*
- * 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
#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) |
#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));
* 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)
/*
* 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) }
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
projects / kernel / kernel-generic.git / commitdiff