[dbrownell@users.sourceforge.net: user's guide; variant param is optional]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
@code{pxa27x} ... instruction register length is 7 bits
@item @code{pxa250}, @code{pxa255},
@code{pxa26x} ... instruction register length is 5 bits
@code{pxa27x} ... instruction register length is 7 bits
@item @code{pxa250}, @code{pxa255},
@code{pxa26x} ... instruction register length is 5 bits
+@item @code{pxa3xx} ... instruction register length is 11 bits
@end itemize
@end itemize
@end deffn
@end itemize
@end itemize
@end deffn
uint8_t field2_check_mask = 0x1;
jtag_set_end_state(TAP_DRPAUSE);
uint8_t field2_check_mask = 0x1;
jtag_set_end_state(TAP_DRPAUSE);
- xscale_jtag_set_instr(target->tap, XSCALE_SELDCSR);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_SELDCSR << xscale->xscale_variant);
buf_set_u32(&field0, 1, 1, xscale->hold_rst);
buf_set_u32(&field0, 2, 1, xscale->external_debug_break);
buf_set_u32(&field0, 1, 1, xscale->hold_rst);
buf_set_u32(&field0, 2, 1, xscale->external_debug_break);
if (num_words == 0)
return ERROR_INVALID_ARGUMENTS;
if (num_words == 0)
return ERROR_INVALID_ARGUMENTS;
+ struct xscale_common *xscale = target_to_xscale(target);
int retval = ERROR_OK;
tap_state_t path[3];
struct scan_field fields[3];
int retval = ERROR_OK;
tap_state_t path[3];
struct scan_field fields[3];
fields[2].check_mask = &field2_check_mask;
jtag_set_end_state(TAP_IDLE);
fields[2].check_mask = &field2_check_mask;
jtag_set_end_state(TAP_IDLE);
- xscale_jtag_set_instr(target->tap, XSCALE_DBGTX);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_DBGTX << xscale->xscale_variant);
jtag_add_runtest(1, jtag_get_end_state()); /* ensures that we're in the TAP_IDLE state as the above could be a no-op */
/* repeat until all words have been collected */
jtag_add_runtest(1, jtag_get_end_state()); /* ensures that we're in the TAP_IDLE state as the above could be a no-op */
/* repeat until all words have been collected */
jtag_set_end_state(TAP_IDLE);
jtag_set_end_state(TAP_IDLE);
- xscale_jtag_set_instr(target->tap, XSCALE_DBGTX);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_DBGTX << xscale->xscale_variant);
path[0] = TAP_DRSELECT;
path[1] = TAP_DRCAPTURE;
path[0] = TAP_DRSELECT;
path[1] = TAP_DRCAPTURE;
jtag_set_end_state(TAP_IDLE);
jtag_set_end_state(TAP_IDLE);
- xscale_jtag_set_instr(target->tap, XSCALE_DBGRX);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_DBGRX << xscale->xscale_variant);
memset(&fields, 0, sizeof fields);
memset(&fields, 0, sizeof fields);
/* send count elements of size byte to the debug handler */
static int xscale_send(struct target *target, uint8_t *buffer, int count, int size)
{
/* send count elements of size byte to the debug handler */
static int xscale_send(struct target *target, uint8_t *buffer, int count, int size)
{
+ struct xscale_common *xscale = target_to_xscale(target);
uint32_t t[3];
int bits[3];
int retval;
uint32_t t[3];
int bits[3];
int retval;
jtag_set_end_state(TAP_IDLE);
jtag_set_end_state(TAP_IDLE);
- xscale_jtag_set_instr(target->tap, XSCALE_DBGRX);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_DBGRX << xscale->xscale_variant);
xscale->external_debug_break = ext_dbg_brk;
jtag_set_end_state(TAP_IDLE);
xscale->external_debug_break = ext_dbg_brk;
jtag_set_end_state(TAP_IDLE);
- xscale_jtag_set_instr(target->tap, XSCALE_SELDCSR);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_SELDCSR << xscale->xscale_variant);
buf_set_u32(&field0, 1, 1, xscale->hold_rst);
buf_set_u32(&field0, 2, 1, xscale->external_debug_break);
buf_set_u32(&field0, 1, 1, xscale->hold_rst);
buf_set_u32(&field0, 2, 1, xscale->external_debug_break);
static int xscale_load_ic(struct target *target, uint32_t va, uint32_t buffer[8])
{
static int xscale_load_ic(struct target *target, uint32_t va, uint32_t buffer[8])
{
+ struct xscale_common *xscale = target_to_xscale(target);
uint8_t packet[4];
uint8_t cmd;
int word;
uint8_t packet[4];
uint8_t cmd;
int word;
/* LDIC into IR */
jtag_set_end_state(TAP_IDLE);
/* LDIC into IR */
jtag_set_end_state(TAP_IDLE);
- xscale_jtag_set_instr(target->tap, XSCALE_LDIC);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_LDIC << xscale->xscale_variant);
/* CMD is b011 to load a cacheline into the Mini ICache.
* Loading into the main ICache is deprecated, and unused.
/* CMD is b011 to load a cacheline into the Mini ICache.
* Loading into the main ICache is deprecated, and unused.
static int xscale_invalidate_ic_line(struct target *target, uint32_t va)
{
static int xscale_invalidate_ic_line(struct target *target, uint32_t va)
{
+ struct xscale_common *xscale = target_to_xscale(target);
uint8_t packet[4];
uint8_t cmd;
struct scan_field fields[2];
jtag_set_end_state(TAP_IDLE);
uint8_t packet[4];
uint8_t cmd;
struct scan_field fields[2];
jtag_set_end_state(TAP_IDLE);
- xscale_jtag_set_instr(target->tap, XSCALE_LDIC);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_LDIC << xscale->xscale_variant);
/* CMD for invalidate IC line b000, bits [6:4] b000 */
buf_set_u32(&cmd, 0, 6, 0x0);
/* CMD for invalidate IC line b000, bits [6:4] b000 */
buf_set_u32(&cmd, 0, 6, 0x0);
* end up in T-L-R, which would reset JTAG
*/
jtag_set_end_state(TAP_IDLE);
* end up in T-L-R, which would reset JTAG
*/
jtag_set_end_state(TAP_IDLE);
- xscale_jtag_set_instr(target->tap, XSCALE_SELDCSR);
+ xscale_jtag_set_instr(target->tap,
+ XSCALE_SELDCSR << xscale->xscale_variant);
/* set Hold reset, Halt mode and Trap Reset */
buf_set_u32(xscale->reg_cache->reg_list[XSCALE_DCSR].value, 30, 1, 0x1);
/* set Hold reset, Halt mode and Trap Reset */
buf_set_u32(xscale->reg_cache->reg_list[XSCALE_DCSR].value, 30, 1, 0x1);
armv4_5 = &xscale->armv4_5_common;
armv4_5 = &xscale->armv4_5_common;
- /* store architecture specfic data (none so far) */
+ /* store architecture specfic data */
xscale->common_magic = XSCALE_COMMON_MAGIC;
xscale->common_magic = XSCALE_COMMON_MAGIC;
- /* we don't really *need* variant info ... */
+ /* we don't really *need* a variant param ... */
if (variant) {
int ir_length = 0;
if (variant) {
int ir_length = 0;
|| strcmp(variant, "ixp45x") == 0
|| strcmp(variant, "ixp46x") == 0)
ir_length = 7;
|| strcmp(variant, "ixp45x") == 0
|| strcmp(variant, "ixp46x") == 0)
ir_length = 7;
+ else if (strcmp(variant, "pxa3xx") == 0)
+ ir_length = 11;
else
LOG_WARNING("%s: unrecognized variant %s",
tap->dotted_name, variant);
else
LOG_WARNING("%s: unrecognized variant %s",
tap->dotted_name, variant);
+ /* PXA3xx shifts the JTAG instructions */
+ if (tap->ir_length == 11)
+ xscale->xscale_variant = XSCALE_PXA3XX;
+ else
+ xscale->xscale_variant = XSCALE_IXP4XX_PXA2XX;
+
/* the debug handler isn't installed (and thus not running) at this time */
xscale->handler_address = 0xfe000800;
/* the debug handler isn't installed (and thus not running) at this time */
xscale->handler_address = 0xfe000800;
#define XSCALE_LDIC 0x07
#define XSCALE_SELDCSR 0x09
#define XSCALE_LDIC 0x07
#define XSCALE_SELDCSR 0x09
+/* Possible CPU types */
+#define XSCALE_IXP4XX_PXA2XX 0x0
+#define XSCALE_PXA3XX 0x4
+
enum xscale_debug_reason
{
XSCALE_DBG_REASON_GENERIC,
enum xscale_debug_reason
{
XSCALE_DBG_REASON_GENERIC,
uint32_t cp15_control_reg;
int fast_memory_access;
uint32_t cp15_control_reg;
int fast_memory_access;
+
+ /* CPU variant */
+ int xscale_variant;
};
static inline struct xscale_common *
};
static inline struct xscale_common *
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