X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Ftarget%2Farm_adi_v5.c;h=9f260642fc462307cffe3e80be1af62955cd1e3e;hb=adf2a9a267422a2914a50b4a4a35a0e19b25d1c3;hp=59f5638ec34c62e4bdeeecd43ba6912738083a72;hpb=e60c164cdb50a0aa268165e57de0a4cd0d58fcdf;p=openocd.git diff --git a/src/target/arm_adi_v5.c b/src/target/arm_adi_v5.c index 59f5638ec3..9f260642fc 100644 --- a/src/target/arm_adi_v5.c +++ b/src/target/arm_adi_v5.c @@ -89,7 +89,9 @@ static uint32_t max_tar_block_size(uint32_t tar_autoincr_block, uint32_t address ***************************************************************************/ /* Scan out and in from target ordered uint8_t buffers */ -int adi_jtag_dp_scan(struct swjdp_common *swjdp, uint8_t instr, uint8_t reg_addr, uint8_t RnW, uint8_t *outvalue, uint8_t *invalue, uint8_t *ack) +static int adi_jtag_dp_scan(struct swjdp_common *swjdp, + uint8_t instr, uint8_t reg_addr, uint8_t RnW, + uint8_t *outvalue, uint8_t *invalue, uint8_t *ack) { struct arm_jtag *jtag_info = swjdp->jtag_info; struct scan_field fields[2]; @@ -99,7 +101,10 @@ int adi_jtag_dp_scan(struct swjdp_common *swjdp, uint8_t instr, uint8_t reg_addr arm_jtag_set_instr(jtag_info, instr, NULL); /* Add specified number of tck clocks before accessing memory bus */ - if ((instr == DAP_IR_APACC) && ((reg_addr == AP_REG_DRW)||((reg_addr&0xF0) == AP_REG_BD0))&& (swjdp->memaccess_tck != 0)) + if ((instr == JTAG_DP_APACC) + && ((reg_addr == AP_REG_DRW) + || ((reg_addr & 0xF0) == AP_REG_BD0)) + && (swjdp->memaccess_tck != 0)) jtag_add_runtest(swjdp->memaccess_tck, jtag_set_end_state(TAP_IDLE)); fields[0].tap = jtag_info->tap; @@ -119,7 +124,9 @@ int adi_jtag_dp_scan(struct swjdp_common *swjdp, uint8_t instr, uint8_t reg_addr } /* Scan out and in from host ordered uint32_t variables */ -int adi_jtag_dp_scan_u32(struct swjdp_common *swjdp, uint8_t instr, uint8_t reg_addr, uint8_t RnW, uint32_t outvalue, uint32_t *invalue, uint8_t *ack) +static int adi_jtag_dp_scan_u32(struct swjdp_common *swjdp, + uint8_t instr, uint8_t reg_addr, uint8_t RnW, + uint32_t outvalue, uint32_t *invalue, uint8_t *ack) { struct arm_jtag *jtag_info = swjdp->jtag_info; struct scan_field fields[2]; @@ -130,7 +137,10 @@ int adi_jtag_dp_scan_u32(struct swjdp_common *swjdp, uint8_t instr, uint8_t reg_ arm_jtag_set_instr(jtag_info, instr, NULL); /* Add specified number of tck clocks before accessing memory bus */ - if ((instr == DAP_IR_APACC) && ((reg_addr == AP_REG_DRW)||((reg_addr&0xF0) == AP_REG_BD0))&& (swjdp->memaccess_tck != 0)) + if ((instr == JTAG_DP_APACC) + && ((reg_addr == AP_REG_DRW) + || ((reg_addr & 0xF0) == AP_REG_BD0)) + && (swjdp->memaccess_tck != 0)) jtag_add_runtest(swjdp->memaccess_tck, jtag_set_end_state(TAP_IDLE)); fields[0].tap = jtag_info->tap; @@ -161,38 +171,46 @@ int adi_jtag_dp_scan_u32(struct swjdp_common *swjdp, uint8_t instr, uint8_t reg_ } /* scan_inout_check adds one extra inscan for DPAP_READ commands to read variables */ -int scan_inout_check(struct swjdp_common *swjdp, uint8_t instr, uint8_t reg_addr, uint8_t RnW, uint8_t *outvalue, uint8_t *invalue) +static int scan_inout_check(struct swjdp_common *swjdp, + uint8_t instr, uint8_t reg_addr, uint8_t RnW, + uint8_t *outvalue, uint8_t *invalue) { adi_jtag_dp_scan(swjdp, instr, reg_addr, RnW, outvalue, NULL, NULL); if ((RnW == DPAP_READ) && (invalue != NULL)) - { - adi_jtag_dp_scan(swjdp, DAP_IR_DPACC, DP_RDBUFF, DPAP_READ, 0, invalue, &swjdp->ack); - } + adi_jtag_dp_scan(swjdp, JTAG_DP_DPACC, + DP_RDBUFF, DPAP_READ, 0, invalue, &swjdp->ack); - /* In TRANS_MODE_ATOMIC all DAP_IR_APACC transactions wait for ack = OK/FAULT and the check CTRL_STAT */ - if ((instr == DAP_IR_APACC) && (swjdp->trans_mode == TRANS_MODE_ATOMIC)) - { + /* In TRANS_MODE_ATOMIC all JTAG_DP_APACC transactions wait for + * ack = OK/FAULT and the check CTRL_STAT + */ + if ((instr == JTAG_DP_APACC) + && (swjdp->trans_mode == TRANS_MODE_ATOMIC)) return swjdp_transaction_endcheck(swjdp); - } return ERROR_OK; } -int scan_inout_check_u32(struct swjdp_common *swjdp, uint8_t instr, uint8_t reg_addr, uint8_t RnW, uint32_t outvalue, uint32_t *invalue) +static int scan_inout_check_u32(struct swjdp_common *swjdp, + uint8_t instr, uint8_t reg_addr, uint8_t RnW, + uint32_t outvalue, uint32_t *invalue) { + /* Issue the read or write */ adi_jtag_dp_scan_u32(swjdp, instr, reg_addr, RnW, outvalue, NULL, NULL); + /* For reads, collect posted value; RDBUFF has no other effect. + * Assumes read gets acked with OK/FAULT, and CTRL_STAT says "OK". + */ if ((RnW == DPAP_READ) && (invalue != NULL)) - { - adi_jtag_dp_scan_u32(swjdp, DAP_IR_DPACC, DP_RDBUFF, DPAP_READ, 0, invalue, &swjdp->ack); - } + adi_jtag_dp_scan_u32(swjdp, JTAG_DP_DPACC, + DP_RDBUFF, DPAP_READ, 0, invalue, &swjdp->ack); - /* In TRANS_MODE_ATOMIC all DAP_IR_APACC transactions wait for ack = OK/FAULT and then check CTRL_STAT */ - if ((instr == DAP_IR_APACC) && (swjdp->trans_mode == TRANS_MODE_ATOMIC)) - { + /* In TRANS_MODE_ATOMIC all JTAG_DP_APACC transactions wait for + * ack = OK/FAULT and then check CTRL_STAT + */ + if ((instr == JTAG_DP_APACC) + && (swjdp->trans_mode == TRANS_MODE_ATOMIC)) return swjdp_transaction_endcheck(swjdp); - } return ERROR_OK; } @@ -206,7 +224,8 @@ int swjdp_transaction_endcheck(struct swjdp_common *swjdp) #if 0 /* Danger!!!! BROKEN!!!! */ - scan_inout_check_u32(swjdp, DAP_IR_DPACC, DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat); + scan_inout_check_u32(swjdp, JTAG_DP_DPACC, + DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat); /* Danger!!!! BROKEN!!!! Why will jtag_execute_queue() fail here???? R956 introduced the check on return value here and now Michael Schwingen reports that this code no longer works.... @@ -220,7 +239,11 @@ int swjdp_transaction_endcheck(struct swjdp_common *swjdp) /* Why??? second time it works??? */ #endif - scan_inout_check_u32(swjdp, DAP_IR_DPACC, DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat); + /* Post CTRL/STAT read; discard any previous posted read value + * but collect its ACK status. + */ + scan_inout_check_u32(swjdp, JTAG_DP_DPACC, + DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat); if ((retval = jtag_execute_queue()) != ERROR_OK) return retval; @@ -235,17 +258,24 @@ int swjdp_transaction_endcheck(struct swjdp_common *swjdp) { if ((timeval_ms()-then) > 1000) { - LOG_WARNING("Timeout (1000ms) waiting for ACK = OK/FAULT in SWJDP transaction"); + /* NOTE: this would be a good spot + * to use JTAG_DP_ABORT. + */ + LOG_WARNING("Timeout (1000ms) waiting " + "for ACK=OK/FAULT " + "in JTAG-DP transaction"); return ERROR_JTAG_DEVICE_ERROR; } } else { - LOG_WARNING("Invalid ACK in SWJDP transaction"); + LOG_WARNING("Invalid ACK " + "in JTAG-DP transaction"); return ERROR_JTAG_DEVICE_ERROR; } - scan_inout_check_u32(swjdp, DAP_IR_DPACC, DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat); + scan_inout_check_u32(swjdp, JTAG_DP_DPACC, + DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat); if ((retval = jtag_execute_queue()) != ERROR_OK) return retval; swjdp->ack = swjdp->ack & 0x7; @@ -271,14 +301,19 @@ int swjdp_transaction_endcheck(struct swjdp_common *swjdp) /* Print information about last AHBAP access */ LOG_ERROR("AHBAP Cached values: dp_select 0x%" PRIx32 ", ap_csw 0x%" PRIx32 ", ap_tar 0x%" PRIx32 "", swjdp->dp_select_value, swjdp->ap_csw_value, swjdp->ap_tar_value); if (ctrlstat & SSTICKYORUN) - LOG_ERROR("SWJ-DP OVERRUN - check clock or reduce jtag speed"); + LOG_ERROR("JTAG-DP OVERRUN - " + "check clock or reduce jtag speed"); if (ctrlstat & SSTICKYERR) - LOG_ERROR("SWJ-DP STICKY ERROR"); + LOG_ERROR("JTAG-DP STICKY ERROR"); /* Clear Sticky Error Bits */ - scan_inout_check_u32(swjdp, DAP_IR_DPACC, DP_CTRL_STAT, DPAP_WRITE, swjdp->dp_ctrl_stat | SSTICKYORUN | SSTICKYERR, NULL); - scan_inout_check_u32(swjdp, DAP_IR_DPACC, DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat); + scan_inout_check_u32(swjdp, JTAG_DP_DPACC, + DP_CTRL_STAT, DPAP_WRITE, + swjdp->dp_ctrl_stat | SSTICKYORUN + | SSTICKYERR, NULL); + scan_inout_check_u32(swjdp, JTAG_DP_DPACC, + DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat); if ((retval = jtag_execute_queue()) != ERROR_OK) return retval; @@ -305,14 +340,18 @@ int swjdp_transaction_endcheck(struct swjdp_common *swjdp) * * ***************************************************************************/ -int dap_dp_write_reg(struct swjdp_common *swjdp, uint32_t value, uint8_t reg_addr) +static int dap_dp_write_reg(struct swjdp_common *swjdp, + uint32_t value, uint8_t reg_addr) { - return scan_inout_check_u32(swjdp, DAP_IR_DPACC, reg_addr, DPAP_WRITE, value, NULL); + return scan_inout_check_u32(swjdp, JTAG_DP_DPACC, + reg_addr, DPAP_WRITE, value, NULL); } -int dap_dp_read_reg(struct swjdp_common *swjdp, uint32_t *value, uint8_t reg_addr) +static int dap_dp_read_reg(struct swjdp_common *swjdp, + uint32_t *value, uint8_t reg_addr) { - return scan_inout_check_u32(swjdp, DAP_IR_DPACC, reg_addr, DPAP_READ, 0, value); + return scan_inout_check_u32(swjdp, JTAG_DP_DPACC, + reg_addr, DPAP_READ, 0, value); } int dap_ap_select(struct swjdp_common *swjdp,uint8_t apsel) @@ -332,7 +371,7 @@ int dap_ap_select(struct swjdp_common *swjdp,uint8_t apsel) return ERROR_OK; } -int dap_dp_bankselect(struct swjdp_common *swjdp,uint32_t ap_reg) +static int dap_dp_bankselect(struct swjdp_common *swjdp, uint32_t ap_reg) { uint32_t select; select = (ap_reg & 0x000000F0); @@ -346,28 +385,24 @@ int dap_dp_bankselect(struct swjdp_common *swjdp,uint32_t ap_reg) return ERROR_OK; } -int dap_ap_write_reg(struct swjdp_common *swjdp, uint32_t reg_addr, uint8_t* out_value_buf) +static int dap_ap_write_reg(struct swjdp_common *swjdp, + uint32_t reg_addr, uint8_t *out_value_buf) { dap_dp_bankselect(swjdp, reg_addr); - scan_inout_check(swjdp, DAP_IR_APACC, reg_addr, DPAP_WRITE, out_value_buf, NULL); + scan_inout_check(swjdp, JTAG_DP_APACC, reg_addr, + DPAP_WRITE, out_value_buf, NULL); return ERROR_OK; } -int dap_ap_read_reg(struct swjdp_common *swjdp, uint32_t reg_addr, uint8_t *in_value_buf) -{ - dap_dp_bankselect(swjdp, reg_addr); - scan_inout_check(swjdp, DAP_IR_APACC, reg_addr, DPAP_READ, 0, in_value_buf); - - return ERROR_OK; -} int dap_ap_write_reg_u32(struct swjdp_common *swjdp, uint32_t reg_addr, uint32_t value) { uint8_t out_value_buf[4]; buf_set_u32(out_value_buf, 0, 32, value); dap_dp_bankselect(swjdp, reg_addr); - scan_inout_check(swjdp, DAP_IR_APACC, reg_addr, DPAP_WRITE, out_value_buf, NULL); + scan_inout_check(swjdp, JTAG_DP_APACC, reg_addr, + DPAP_WRITE, out_value_buf, NULL); return ERROR_OK; } @@ -375,7 +410,8 @@ int dap_ap_write_reg_u32(struct swjdp_common *swjdp, uint32_t reg_addr, uint32_t int dap_ap_read_reg_u32(struct swjdp_common *swjdp, uint32_t reg_addr, uint32_t *value) { dap_dp_bankselect(swjdp, reg_addr); - scan_inout_check_u32(swjdp, DAP_IR_APACC, reg_addr, DPAP_READ, 0, value); + scan_inout_check_u32(swjdp, JTAG_DP_APACC, reg_addr, + DPAP_READ, 0, value); return ERROR_OK; } @@ -534,7 +570,8 @@ int mem_ap_write_buf_u32(struct swjdp_common *swjdp, uint8_t *buffer, int count, return retval; } -int mem_ap_write_buf_packed_u16(struct swjdp_common *swjdp, uint8_t *buffer, int count, uint32_t address) +static int mem_ap_write_buf_packed_u16(struct swjdp_common *swjdp, + uint8_t *buffer, int count, uint32_t address) { int retval = ERROR_OK; int wcount, blocksize, writecount, i; @@ -630,7 +667,8 @@ int mem_ap_write_buf_u16(struct swjdp_common *swjdp, uint8_t *buffer, int count, return retval; } -int mem_ap_write_buf_packed_u8(struct swjdp_common *swjdp, uint8_t *buffer, int count, uint32_t address) +static int mem_ap_write_buf_packed_u8(struct swjdp_common *swjdp, + uint8_t *buffer, int count, uint32_t address) { int retval = ERROR_OK; int wcount, blocksize, writecount, i; @@ -752,15 +790,25 @@ int mem_ap_read_buf_u32(struct swjdp_common *swjdp, uint8_t *buffer, int count, dap_setup_accessport(swjdp, CSW_32BIT | CSW_ADDRINC_SINGLE, address); /* Scan out first read */ - adi_jtag_dp_scan(swjdp, DAP_IR_APACC, AP_REG_DRW, DPAP_READ, 0, NULL, NULL); + adi_jtag_dp_scan(swjdp, JTAG_DP_APACC, AP_REG_DRW, + DPAP_READ, 0, NULL, NULL); for (readcount = 0; readcount < blocksize - 1; readcount++) { - /* Scan out read instruction and scan in previous value */ - adi_jtag_dp_scan(swjdp, DAP_IR_APACC, AP_REG_DRW, DPAP_READ, 0, buffer + 4 * readcount, &swjdp->ack); + /* Scan out next read; scan in posted value for the + * previous one. Assumes read is acked "OK/FAULT", + * and CTRL_STAT says that meant "OK". + */ + adi_jtag_dp_scan(swjdp, JTAG_DP_APACC, AP_REG_DRW, + DPAP_READ, 0, buffer + 4 * readcount, + &swjdp->ack); } - /* Scan in last value */ - adi_jtag_dp_scan(swjdp, DAP_IR_DPACC, DP_RDBUFF, DPAP_READ, 0, buffer + 4 * readcount, &swjdp->ack); + /* Scan in last posted value; RDBUFF has no other effect, + * assuming ack is OK/FAULT and CTRL_STAT says "OK". + */ + adi_jtag_dp_scan(swjdp, JTAG_DP_DPACC, DP_RDBUFF, + DPAP_READ, 0, buffer + 4 * readcount, + &swjdp->ack); if (swjdp_transaction_endcheck(swjdp) == ERROR_OK) { wcount = wcount - blocksize; @@ -800,7 +848,8 @@ int mem_ap_read_buf_u32(struct swjdp_common *swjdp, uint8_t *buffer, int count, return retval; } -int mem_ap_read_buf_packed_u16(struct swjdp_common *swjdp, uint8_t *buffer, int count, uint32_t address) +static int mem_ap_read_buf_packed_u16(struct swjdp_common *swjdp, + uint8_t *buffer, int count, uint32_t address) { uint32_t invalue; int retval = ERROR_OK; @@ -895,7 +944,8 @@ int mem_ap_read_buf_u16(struct swjdp_common *swjdp, uint8_t *buffer, int count, * The solution is to arrange for a large out/in scan in this loop and * and convert data afterwards. */ -int mem_ap_read_buf_packed_u8(struct swjdp_common *swjdp, uint8_t *buffer, int count, uint32_t address) +static int mem_ap_read_buf_packed_u8(struct swjdp_common *swjdp, + uint8_t *buffer, int count, uint32_t address) { uint32_t invalue; int retval = ERROR_OK; @@ -1067,7 +1117,7 @@ is_dap_cid_ok(uint32_t cid3, uint32_t cid2, uint32_t cid1, uint32_t cid0) int dap_info_command(struct command_context *cmd_ctx, struct swjdp_common *swjdp, int apsel) { - uint32_t dbgbase,apid; + uint32_t dbgbase, apid; int romtable_present = 0; uint8_t mem_ap; uint32_t apselold; @@ -1079,25 +1129,31 @@ int dap_info_command(struct command_context *cmd_ctx, struct swjdp_common *swjdp swjdp_transaction_endcheck(swjdp); /* Now we read ROM table ID registers, ref. ARM IHI 0029B sec */ mem_ap = ((apid&0x10000) && ((apid&0x0F) != 0)); - command_print(cmd_ctx, "ap identification register 0x%8.8" PRIx32 "", apid); + command_print(cmd_ctx, "AP ID register 0x%8.8" PRIx32, apid); if (apid) { switch (apid&0x0F) { case 0: - command_print(cmd_ctx, "\tType is jtag-ap"); + command_print(cmd_ctx, "\tType is JTAG-AP"); break; case 1: - command_print(cmd_ctx, "\tType is mem-ap AHB"); + command_print(cmd_ctx, "\tType is MEM-AP AHB"); break; case 2: - command_print(cmd_ctx, "\tType is mem-ap APB"); + command_print(cmd_ctx, "\tType is MEM-AP APB"); break; default: - command_print(cmd_ctx, "\tUnknown AP-type"); - break; + command_print(cmd_ctx, "\tUnknown AP type"); + break; } - command_print(cmd_ctx, "ap debugbase 0x%8.8" PRIx32 "", dbgbase); + + /* NOTE: a MEM-AP may have a single CoreSight component that's + * not a ROM table ... or have no such components at all. + */ + if (mem_ap) + command_print(cmd_ctx, "AP BASE 0x%8.8" PRIx32, + dbgbase); } else {