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ARM720 uses the new inheritance/nesting scheme 

Use target_to_arm720(), replacing needless pointer traversals
and simplifying a bunch of nasty code.  Stop setting arch_info
for arm720 type parts, it's not used any longer.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell 2009-11-05 22:03:56 -08:00
parent 6cf956fa9d
commit 11fe2ec62e
1 changed files with 30 additions and 80 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

110
src/target/arm720t.c
View File

@ -41,14 +41,15 @@
static int arm720t_scan_cp15(target_t *target,
uint32_t out, uint32_t *in, int instruction, int clock)
{
int retval = ERROR_OK;
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm_jtag_t *jtag_info = &arm7_9->jtag_info;
int retval;
struct arm720t_common_s *arm720t = target_to_arm720(target);
arm_jtag_t *jtag_info;
scan_field_t fields[2];
uint8_t out_buf[4];
uint8_t instruction_buf = instruction;
jtag_info = &arm720t->arm7tdmi_common.arm7_9_common.jtag_info;
buf_set_u32(out_buf, 0, 32, flip_u32(out, 32));
jtag_set_end_state(TAP_DRPAUSE);
@ -184,10 +185,7 @@ static void arm720t_enable_mmu_caches(target_t *target,
static void arm720t_post_debug_entry(target_t *target)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
arm720t_common_t *arm720t = arm7tdmi->arch_info;
struct arm720t_common_s *arm720t = target_to_arm720(target);
/* examine cp15 control reg */
arm720t_read_cp15(target, 0xee110f10, &arm720t->cp15_control_reg);
@ -206,68 +204,35 @@ static void arm720t_post_debug_entry(target_t *target)
static void arm720t_pre_restore_context(target_t *target)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
arm720t_common_t *arm720t = arm7tdmi->arch_info;
struct arm720t_common_s *arm720t = target_to_arm720(target);
/* restore i/d fault status and address register */
arm720t_write_cp15(target, 0xee050f10, arm720t->fsr_reg);
arm720t_write_cp15(target, 0xee060f10, arm720t->far_reg);
}
static int arm720t_get_arch_pointers(target_t *target,
armv4_5_common_t **armv4_5_p, arm7_9_common_t **arm7_9_p,
arm7tdmi_common_t **arm7tdmi_p, arm720t_common_t **arm720t_p)
static int arm720t_verify_pointer(struct command_context_s *cmd_ctx,
struct arm720t_common_s *arm720t)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9;
arm7tdmi_common_t *arm7tdmi;
arm720t_common_t *arm720t;
if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
{
return -1;
if (arm720t->common_magic != ARM720T_COMMON_MAGIC) {
command_print(cmd_ctx, "target is not an ARM720");
return ERROR_TARGET_INVALID;
}
arm7_9 = armv4_5->arch_info;
if (arm7_9->common_magic != ARM7_9_COMMON_MAGIC)
{
return -1;
}
arm7tdmi = arm7_9->arch_info;
if (arm7tdmi->common_magic != ARM7TDMI_COMMON_MAGIC)
{
return -1;
}
arm720t = arm7tdmi->arch_info;
if (arm720t->common_magic != ARM720T_COMMON_MAGIC)
{
return -1;
}
*armv4_5_p = armv4_5;
*arm7_9_p = arm7_9;
*arm7tdmi_p = arm7tdmi;
*arm720t_p = arm720t;
return ERROR_OK;
}
static int arm720t_arch_state(struct target_s *target)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
arm720t_common_t *arm720t = arm7tdmi->arch_info;
struct arm720t_common_s *arm720t = target_to_arm720(target);
struct armv4_5_common_s *armv4_5;
static const char *state[] =
{
"disabled", "enabled"
};
armv4_5 = &arm720t->arm7tdmi_common.arm7_9_common.armv4_5_common;
LOG_USER("target halted in %s state due to %s, current mode: %s\n"
"cpsr: 0x%8.8" PRIx32 " pc: 0x%8.8" PRIx32 "\n"
"MMU: %s, Cache: %s",
@ -286,10 +251,7 @@ static int arm720t_read_memory(struct target_s *target,
uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
int retval;
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
arm720t_common_t *arm720t = arm7tdmi->arch_info;
struct arm720t_common_s *arm720t = target_to_arm720(target);
/* disable cache, but leave MMU enabled */
if (arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled)
@ -306,10 +268,7 @@ static int arm720t_read_memory(struct target_s *target,
static int arm720t_read_phys_memory(struct target_s *target,
uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
arm720t_common_t *arm720t = arm7tdmi->arch_info;
struct arm720t_common_s *arm720t = target_to_arm720(target);
return armv4_5_mmu_read_physical(target, &arm720t->armv4_5_mmu, address, size, count, buffer);
}
@ -317,10 +276,7 @@ static int arm720t_read_phys_memory(struct target_s *target,
static int arm720t_write_phys_memory(struct target_s *target,
uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
arm720t_common_t *arm720t = arm7tdmi->arch_info;
struct arm720t_common_s *arm720t = target_to_arm720(target);
return armv4_5_mmu_write_physical(target, &arm720t->armv4_5_mmu, address, size, count, buffer);
}
@ -328,11 +284,11 @@ static int arm720t_write_phys_memory(struct target_s *target,
static int arm720t_soft_reset_halt(struct target_s *target)
{
int retval = ERROR_OK;
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
arm720t_common_t *arm720t = arm7tdmi->arch_info;
reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
struct arm720t_common_s *arm720t = target_to_arm720(target);
reg_t *dbg_stat = &arm720t->arm7tdmi_common.arm7_9_common
.eice_cache->reg_list[EICE_DBG_STAT];
struct armv4_5_common_s *armv4_5 = &arm720t->arm7tdmi_common
.arm7_9_common.armv4_5_common;
if ((retval = target_halt(target)) != ERROR_OK)
{
@ -409,7 +365,6 @@ static int arm720t_init_arch_info(target_t *target,
arm7tdmi_init_arch_info(target, arm7tdmi, tap);
arm7tdmi->arch_info = arm720t;
arm720t->common_magic = ARM720T_COMMON_MAGIC;
arm7_9->post_debug_entry = arm720t_post_debug_entry;
@ -429,7 +384,7 @@ static int arm720t_init_arch_info(target_t *target,
static int arm720t_target_create(struct target_s *target, Jim_Interp *interp)
{
arm720t_common_t *arm720t = calloc(1,sizeof(arm720t_common_t));
struct arm720t_common_s *arm720t = target_to_arm720(target);
return arm720t_init_arch_info(target, arm720t, target->tap);
}
@ -439,19 +394,14 @@ static int arm720t_handle_cp15_command(struct command_context_s *cmd_ctx,
{
int retval;
target_t *target = get_current_target(cmd_ctx);
armv4_5_common_t *armv4_5;
arm7_9_common_t *arm7_9;
arm7tdmi_common_t *arm7tdmi;
arm720t_common_t *arm720t;
struct arm720t_common_s *arm720t = target_to_arm720(target);
arm_jtag_t *jtag_info;
if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
{
command_print(cmd_ctx, "current target isn't an ARM720t target");
return ERROR_OK;
}
retval = arm720t_verify_pointer(cmd_ctx, arm720t);
if (retval != ERROR_OK)
return retval;
jtag_info = &arm7_9->jtag_info;
jtag_info = &arm720t->arm7tdmi_common.arm7_9_common.jtag_info;
if (target->state != TARGET_HALTED)
{