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arm breakpoints: amended fix comment
[openocd] / src / target / xscale.c
diff --git a/src/target/xscale.c b/src/target/xscale.c
index 48dbc47e49733eefd871cb8c374127bdbcd703d1..0f1953d83a47dc4b26ce38e5fbccff28f13c5617 100644 (file)
--- a/src/target/xscale.c
+++ b/src/target/xscale.c
@@ -158,7 +158,7 @@ static int xscale_verify_pointer(struct command_context *cmd_ctx,
        return ERROR_OK;
 }
 
-static int xscale_jtag_set_instr(struct jtag_tap *tap, uint32_t new_instr)
+static int xscale_jtag_set_instr(struct jtag_tap *tap, uint32_t new_instr, tap_state_t end_state)
 {
        if (tap == NULL)
                return ERROR_FAIL;
@@ -169,12 +169,11 @@ static int xscale_jtag_set_instr(struct jtag_tap *tap, uint32_t new_instr)
                uint8_t scratch[4];
 
                memset(&field, 0, sizeof field);
-               field.tap = tap;
                field.num_bits = tap->ir_length;
                field.out_value = scratch;
-               buf_set_u32(field.out_value, 0, field.num_bits, new_instr);
+               buf_set_u32(scratch, 0, field.num_bits, new_instr);
 
-               jtag_add_ir_scan(1, &field, jtag_get_end_state());
+               jtag_add_ir_scan(tap, &field, end_state);
        }
 
        return ERROR_OK;
@@ -192,32 +191,29 @@ static int xscale_read_dcsr(struct target *target)
        uint8_t field2_check_value = 0x0;
        uint8_t field2_check_mask = 0x1;
 
-       jtag_set_end_state(TAP_DRPAUSE);
        xscale_jtag_set_instr(target->tap,
-               XSCALE_SELDCSR << xscale->xscale_variant);
+               XSCALE_SELDCSR << xscale->xscale_variant,
+               TAP_DRPAUSE);
 
        buf_set_u32(&field0, 1, 1, xscale->hold_rst);
        buf_set_u32(&field0, 2, 1, xscale->external_debug_break);
 
        memset(&fields, 0, sizeof fields);
 
-       fields[0].tap = target->tap;
        fields[0].num_bits = 3;
        fields[0].out_value = &field0;
        uint8_t tmp;
        fields[0].in_value = &tmp;
 
-       fields[1].tap = target->tap;
        fields[1].num_bits = 32;
        fields[1].in_value = xscale->reg_cache->reg_list[XSCALE_DCSR].value;
 
-       fields[2].tap = target->tap;
        fields[2].num_bits = 1;
        fields[2].out_value = &field2;
        uint8_t tmp2;
        fields[2].in_value = &tmp2;
 
-       jtag_add_dr_scan(3, fields, jtag_get_end_state());
+       jtag_add_dr_scan(target->tap, 3, fields, TAP_DRPAUSE);
 
        jtag_check_value_mask(fields + 0, &field0_check_value, &field0_check_mask);
        jtag_check_value_mask(fields + 2, &field2_check_value, &field2_check_mask);
@@ -238,9 +234,7 @@ static int xscale_read_dcsr(struct target *target)
        fields[1].out_value = xscale->reg_cache->reg_list[XSCALE_DCSR].value;
        fields[1].in_value = NULL;
 
-       jtag_set_end_state(TAP_IDLE);
-
-       jtag_add_dr_scan(3, fields, jtag_get_end_state());
+       jtag_add_dr_scan(target->tap, 3, fields, TAP_DRPAUSE);
 
        /* DANGER!!! this must be here. It will make sure that the arguments
         * to jtag_set_check_value() does not go out of scope! */
@@ -279,23 +273,20 @@ static int xscale_receive(struct target *target, uint32_t *buffer, int num_words
 
        memset(&fields, 0, sizeof fields);
 
-       fields[0].tap = target->tap;
        fields[0].num_bits = 3;
        fields[0].check_value = &field0_check_value;
        fields[0].check_mask = &field0_check_mask;
 
-       fields[1].tap = target->tap;
        fields[1].num_bits = 32;
 
-       fields[2].tap = target->tap;
        fields[2].num_bits = 1;
        fields[2].check_value = &field2_check_value;
        fields[2].check_mask = &field2_check_mask;
 
-       jtag_set_end_state(TAP_IDLE);
        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 */
+               XSCALE_DBGTX << xscale->xscale_variant,
+               TAP_IDLE);
+       jtag_add_runtest(1, TAP_IDLE); /* ensures that we're in the TAP_IDLE state as the above could be a no-op */
 
        /* repeat until all words have been collected */
        int attempts = 0;
@@ -311,7 +302,7 @@ static int xscale_receive(struct target *target, uint32_t *buffer, int num_words
 
                        fields[1].in_value = (uint8_t *)(field1 + i);
 
-                       jtag_add_dr_scan_check(3, fields, jtag_set_end_state(TAP_IDLE));
+                       jtag_add_dr_scan_check(target->tap, 3, fields, TAP_IDLE);
 
                        jtag_add_callback(xscale_getbuf, (jtag_callback_data_t)(field1 + i));
 
@@ -374,10 +365,9 @@ static int xscale_read_tx(struct target *target, int consume)
        uint8_t field2_check_value = 0x0;
        uint8_t field2_check_mask = 0x1;
 
-       jtag_set_end_state(TAP_IDLE);
-
        xscale_jtag_set_instr(target->tap,
-               XSCALE_DBGTX << xscale->xscale_variant);
+               XSCALE_DBGTX << xscale->xscale_variant,
+               TAP_IDLE);
 
        path[0] = TAP_DRSELECT;
        path[1] = TAP_DRCAPTURE;
@@ -392,15 +382,12 @@ static int xscale_read_tx(struct target *target, int consume)
 
        memset(&fields, 0, sizeof fields);
 
-       fields[0].tap = target->tap;
        fields[0].num_bits = 3;
        fields[0].in_value = &field0_in;
 
-       fields[1].tap = target->tap;
        fields[1].num_bits = 32;
        fields[1].in_value = xscale->reg_cache->reg_list[XSCALE_TX].value;
 
-       fields[2].tap = target->tap;
        fields[2].num_bits = 1;
        uint8_t tmp;
        fields[2].in_value = &tmp;
@@ -421,7 +408,7 @@ static int xscale_read_tx(struct target *target, int consume)
                        jtag_add_pathmove(ARRAY_SIZE(noconsume_path), noconsume_path);
                }
 
-               jtag_add_dr_scan(3, fields, jtag_set_end_state(TAP_IDLE));
+               jtag_add_dr_scan(target->tap, 3, fields, TAP_IDLE);
 
                jtag_check_value_mask(fields + 0, &field0_check_value, &field0_check_mask);
                jtag_check_value_mask(fields + 2, &field2_check_value, &field2_check_mask);
@@ -473,23 +460,19 @@ static int xscale_write_rx(struct target *target)
        uint8_t field2_check_value = 0x0;
        uint8_t field2_check_mask = 0x1;
 
-       jtag_set_end_state(TAP_IDLE);
-
        xscale_jtag_set_instr(target->tap,
-               XSCALE_DBGRX << xscale->xscale_variant);
+               XSCALE_DBGRX << xscale->xscale_variant,
+               TAP_IDLE);
 
        memset(&fields, 0, sizeof fields);
 
-       fields[0].tap = target->tap;
        fields[0].num_bits = 3;
        fields[0].out_value = &field0_out;
        fields[0].in_value = &field0_in;
 
-       fields[1].tap = target->tap;
        fields[1].num_bits = 32;
        fields[1].out_value = xscale->reg_cache->reg_list[XSCALE_RX].value;
 
-       fields[2].tap = target->tap;
        fields[2].num_bits = 1;
        fields[2].out_value = &field2;
        uint8_t tmp;
@@ -502,7 +485,7 @@ static int xscale_write_rx(struct target *target)
        LOG_DEBUG("polling RX");
        for (;;)
        {
-               jtag_add_dr_scan(3, fields, jtag_set_end_state(TAP_IDLE));
+               jtag_add_dr_scan(target->tap, 3, fields, TAP_IDLE);
 
                jtag_check_value_mask(fields + 0, &field0_check_value, &field0_check_mask);
                jtag_check_value_mask(fields + 2, &field2_check_value, &field2_check_mask);
@@ -534,7 +517,7 @@ static int xscale_write_rx(struct target *target)
 
        /* set rx_valid */
        field2 = 0x1;
-       jtag_add_dr_scan(3, fields, jtag_set_end_state(TAP_IDLE));
+       jtag_add_dr_scan(target->tap, 3, fields, TAP_IDLE);
 
        if ((retval = jtag_execute_queue()) != ERROR_OK)
        {
@@ -554,10 +537,9 @@ static int xscale_send(struct target *target, uint8_t *buffer, int count, int si
        int retval;
        int done_count = 0;
 
-       jtag_set_end_state(TAP_IDLE);
-
        xscale_jtag_set_instr(target->tap,
-               XSCALE_DBGRX << xscale->xscale_variant);
+               XSCALE_DBGRX << xscale->xscale_variant,
+               TAP_IDLE);
 
        bits[0]=3;
        t[0]=0;
@@ -598,7 +580,7 @@ static int xscale_send(struct target *target, uint8_t *buffer, int count, int si
                                3,
                                bits,
                                t,
-                               jtag_set_end_state(TAP_IDLE));
+                               TAP_IDLE);
                buffer += size;
        }
 
@@ -637,32 +619,29 @@ static int xscale_write_dcsr(struct target *target, int hold_rst, int ext_dbg_br
        if (ext_dbg_brk != -1)
                xscale->external_debug_break = ext_dbg_brk;
 
-       jtag_set_end_state(TAP_IDLE);
        xscale_jtag_set_instr(target->tap,
-               XSCALE_SELDCSR << xscale->xscale_variant);
+               XSCALE_SELDCSR << xscale->xscale_variant,
+               TAP_IDLE);
 
        buf_set_u32(&field0, 1, 1, xscale->hold_rst);
        buf_set_u32(&field0, 2, 1, xscale->external_debug_break);
 
        memset(&fields, 0, sizeof fields);
 
-       fields[0].tap = target->tap;
        fields[0].num_bits = 3;
        fields[0].out_value = &field0;
        uint8_t tmp;
        fields[0].in_value = &tmp;
 
-       fields[1].tap = target->tap;
        fields[1].num_bits = 32;
        fields[1].out_value = xscale->reg_cache->reg_list[XSCALE_DCSR].value;
 
-       fields[2].tap = target->tap;
        fields[2].num_bits = 1;
        fields[2].out_value = &field2;
        uint8_t tmp2;
        fields[2].in_value = &tmp2;
 
-       jtag_add_dr_scan(3, fields, jtag_get_end_state());
+       jtag_add_dr_scan(target->tap, 3, fields, TAP_IDLE);
 
        jtag_check_value_mask(fields + 0, &field0_check_value, &field0_check_mask);
        jtag_check_value_mask(fields + 2, &field2_check_value, &field2_check_mask);
@@ -702,9 +681,9 @@ static int xscale_load_ic(struct target *target, uint32_t va, uint32_t buffer[8]
        LOG_DEBUG("loading miniIC at 0x%8.8" PRIx32 "", va);
 
        /* LDIC into IR */
-       jtag_set_end_state(TAP_IDLE);
        xscale_jtag_set_instr(target->tap,
-               XSCALE_LDIC << xscale->xscale_variant);
+               XSCALE_LDIC << xscale->xscale_variant,
+               TAP_IDLE);
 
        /* CMD is b011 to load a cacheline into the Mini ICache.
         * Loading into the main ICache is deprecated, and unused.
@@ -717,15 +696,13 @@ static int xscale_load_ic(struct target *target, uint32_t va, uint32_t buffer[8]
 
        memset(&fields, 0, sizeof fields);
 
-       fields[0].tap = target->tap;
        fields[0].num_bits = 6;
        fields[0].out_value = &cmd;
 
-       fields[1].tap = target->tap;
        fields[1].num_bits = 27;
        fields[1].out_value = packet;
 
-       jtag_add_dr_scan(2, fields, jtag_get_end_state());
+       jtag_add_dr_scan(target->tap, 2, fields, TAP_IDLE);
 
        /* rest of packet is a cacheline: 8 instructions, with parity */
        fields[0].num_bits = 32;
@@ -742,7 +719,7 @@ static int xscale_load_ic(struct target *target, uint32_t va, uint32_t buffer[8]
                memcpy(&value, packet, sizeof(uint32_t));
                cmd = parity(value);
 
-               jtag_add_dr_scan(2, fields, jtag_get_end_state());
+               jtag_add_dr_scan(target->tap, 2, fields, TAP_IDLE);
        }
 
        return jtag_execute_queue();
@@ -755,9 +732,9 @@ static int xscale_invalidate_ic_line(struct target *target, uint32_t va)
        uint8_t cmd;
        struct scan_field fields[2];
 
-       jtag_set_end_state(TAP_IDLE);
        xscale_jtag_set_instr(target->tap,
-               XSCALE_LDIC << xscale->xscale_variant);
+               XSCALE_LDIC << xscale->xscale_variant,
+               TAP_IDLE);
 
        /* CMD for invalidate IC line b000, bits [6:4] b000 */
        buf_set_u32(&cmd, 0, 6, 0x0);
@@ -767,15 +744,13 @@ static int xscale_invalidate_ic_line(struct target *target, uint32_t va)
 
        memset(&fields, 0, sizeof fields);
 
-       fields[0].tap = target->tap;
        fields[0].num_bits = 6;
        fields[0].out_value = &cmd;
 
-       fields[1].tap = target->tap;
        fields[1].num_bits = 27;
        fields[1].out_value = packet;
 
-       jtag_add_dr_scan(2, fields, jtag_get_end_state());
+       jtag_add_dr_scan(target->tap, 2, fields, TAP_IDLE);
 
        return ERROR_OK;
 }
@@ -1496,9 +1471,9 @@ static int xscale_assert_reset(struct target *target)
        /* select DCSR instruction (set endstate to R-T-I to ensure we don't
         * 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->xscale_variant);
+               XSCALE_SELDCSR << xscale->xscale_variant,
+               TAP_IDLE);
 
        /* set Hold reset, Halt mode and Trap Reset */
        buf_set_u32(xscale->reg_cache->reg_list[XSCALE_DCSR].value, 30, 1, 0x1);
@@ -1506,7 +1481,7 @@ static int xscale_assert_reset(struct target *target)
        xscale_write_dcsr(target, 1, 0);
 
        /* select BYPASS, because having DCSR selected caused problems on the PXA27x */
-       xscale_jtag_set_instr(target->tap, ~0);
+       xscale_jtag_set_instr(target->tap, ~0, TAP_IDLE);
        jtag_execute_queue();
 
        /* assert reset */
@@ -1576,7 +1551,7 @@ static int xscale_deassert_reset(struct target *target)
                /* wait 300ms; 150 and 100ms were not enough */
                jtag_add_sleep(300*1000);
 
-               jtag_add_runtest(2030, jtag_set_end_state(TAP_IDLE));
+               jtag_add_runtest(2030, TAP_IDLE);
                jtag_execute_queue();
 
                /* set Hold reset, Halt mode and Trap Reset */
@@ -1633,7 +1608,7 @@ static int xscale_deassert_reset(struct target *target)
                if (retval != ERROR_OK)
                        return retval;
 
-               jtag_add_runtest(30, jtag_set_end_state(TAP_IDLE));
+               jtag_add_runtest(30, TAP_IDLE);
 
                jtag_add_sleep(100000);
 
@@ -3217,21 +3192,26 @@ COMMAND_HANDLER(xscale_handle_idcache_command)
                return ERROR_OK;
        }
 
-       bool icache;
-       COMMAND_PARSE_BOOL(CMD_NAME, icache, "icache", "dcache");
-
+       bool icache = false;
+       if (strcmp(CMD_NAME, "icache") == 0)
+               icache = true;
        if (CMD_ARGC >= 1)
        {
                bool enable;
                COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
-               if (enable)
-                       xscale_enable_mmu_caches(target, 1, 0, 0);
-               else
-                       xscale_disable_mmu_caches(target, 1, 0, 0);
-               if (icache)
+               if (icache) {
                        xscale->armv4_5_mmu.armv4_5_cache.i_cache_enabled = enable;
-               else
+                       if (enable)
+                               xscale_enable_mmu_caches(target, 0, 0, 1);
+                       else
+                               xscale_disable_mmu_caches(target, 0, 0, 1);
+               } else {
                        xscale->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled = enable;
+                       if (enable)
+                               xscale_enable_mmu_caches(target, 0, 1, 0);
+                       else
+                               xscale_disable_mmu_caches(target, 0, 1, 0);
+               }
        }
 
        bool enabled = icache ?
@@ -3439,7 +3419,7 @@ COMMAND_HANDLER(xscale_handle_trace_image_command)
        if (CMD_ARGC >= 2)
        {
                xscale->trace.image->base_address_set = 1;
-               COMMAND_PARSE_NUMBER(int, CMD_ARGV[1], xscale->trace.image->base_address);
+               COMMAND_PARSE_NUMBER(llong, CMD_ARGV[1], xscale->trace.image->base_address);
        }
        else
        {
Cloned from https://git.code.sf.net/p/openocd/code