Added ITM and TPIU register definitions.
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2011 Gareth McMullin <gareth@blacksphere.co.nz>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef LIBOPENCM3_CM3_ITM_H
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#define LIBOPENCM3_CM3_ITM_H
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/* Cortex-M3 Instrumentation Trace Macrocell (ITM) */
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/* --- ITM registers ------------------------------------------------------- */
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/* Stimulus Port x (ITM_STIM[x]) */
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#define ITM_STIM ((volatile u32*)(ITM_BASE))
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/* Trace Enable ports (ITM_TER[x]) */
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#define ITM_TER ((volatile u32*)(ITM_BASE + 0xE00))
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/* Trace Privilege (ITM_TPR) */
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#define ITM_TPR MMIO32(ITM_BASE + 0xE40)
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/* Trace Control (ITM_TCR) */
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#define ITM_TCR MMIO32(ITM_BASE + 0xE80)
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/* TODO: PID, CID */
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/* --- ITM_STIM values ----------------------------------------------------- */
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/* Bits 31:0 - Write to port FIFO for forwarding as software event packet */
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/* Bits 31:1 - RAZ */
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#define ITM_STIM_FIFOREADY (1 << 0)
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/* --- ITM_TER values ------------------------------------------------------ */
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/* Bits 31:0 - Stimulus port #N is enabled with STIMENA[N] is set */
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/* --- ITM_TPR values ------------------------------------------------------ */
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/*
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* Bits 31:0 - Bit [N] of PRIVMASK controls stimulus ports 8N to 8N+7
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* 0: User access allowed to stimulus ports
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* 1: Privileged access only to stimulus ports
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*/
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/* --- ITM_TCR values ------------------------------------------------------ */
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/* Bits 31:24 - Reserved */
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#define ITM_TCR_BUSY (1 << 23)
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#define ITM_TCR_TRACE_BUS_ID_MASK (0x3f << 16)
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/* Bits 15:10 - Reserved */
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#define ITM_TCR_TSPRESCALE_NONE (0 << 8)
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#define ITM_TCR_TSPRESCALE_DIV4 (1 << 8)
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#define ITM_TCR_TSPRESCALE_DIV16 (2 << 8)
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#define ITM_TCR_TSPRESCALE_DIV64 (3 << 8)
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#define ITM_TCR_TSPRESCALE_MASK (3 << 8)
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/* Bits 7:5 - Reserved */
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#define ITM_TCR_SWOENA (1 << 4)
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#define ITM_TCR_TXENA (1 << 3)
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#define ITM_TCR_SYNCENA (1 << 2)
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#define ITM_TCR_TSENA (1 << 1)
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#define ITM_TCR_ITMENA (1 << 0)
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#endif
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@ -30,6 +30,7 @@
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/* PPBI_BASE + 0x3000 (0xE000 3000 - 0xE000 DFFF): Reserved */
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#define SCS_BASE (PPBI_BASE + 0xE000)
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/* PPBI_BASE + 0xF000 (0xE000 F000 - 0xE003 FFFF): Reserved */
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#define TPIU_BASE (PPBI_BASE + 0x40000)
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/* --- ITM: Instrumentation Trace Macrocell --- */
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/* TODO */
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@ -46,15 +46,22 @@
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#define SCS_DCRSR_REGSEL_PSP 0x00000012
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/* Debug Exception and Monitor Control Register (DEMCR) */
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#define SCS_DEMCR_VC_CORERESET 0x00000001
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#define SCS_DEMCR_VC_MMERR 0x00000010
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#define SCS_DEMCR_VC_NOCPERR 0x00000020
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#define SCS_DEMCR_VC_CHKERR 0x00000040
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#define SCS_DEMCR_VC_STATERR 0x00000080
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#define SCS_DEMCR_VC_BUSERR 0x00000100
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#define SCS_DEMCR_VC_INTERR 0x00000200
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#define SCS_DEMCR_VC_HARDERR 0x00000400
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#define SCS_DEMCR_VC_MON_EN 0x00010000
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#define SCS_DEMCR_VC_MON_PEND 0x00020000
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/* Bits 31:25 - Reserved */
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#define SCS_DEMCR_TRCENA (1 << 24)
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/* Bits 23:20 - Reserved */
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#define SCS_DEMCR_MON_REQ (1 << 19)
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#define SCS_DEMCR_MON_STEP (1 << 18)
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#define SCS_DEMCR_VC_MON_PEND (1 << 17)
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#define SCS_DEMCR_VC_MON_EN (1 << 16)
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/* Bits 15:11 - Reserved */
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#define SCS_DEMCR_VC_HARDERR (1 << 10)
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#define SCS_DEMCR_VC_INTERR (1 << 9)
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#define SCS_DEMCR_VC_BUSERR (1 << 8)
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#define SCS_DEMCR_VC_STATERR (1 << 7)
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#define SCS_DEMCR_VC_CHKERR (1 << 6)
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#define SCS_DEMCR_VC_NOCPERR (1 << 5)
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#define SCS_DEMCR_VC_MMERR (1 << 4)
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/* Bits 3:1 - Reserved */
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#define SCS_DEMCR_VC_CORERESET (1 << 0)
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#endif
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@ -0,0 +1,98 @@
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2011 Gareth McMullin <gareth@blacksphere.co.nz>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef LIBOPENCM3_CM3_TPIU_H
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#define LIBOPENCM3_CM3_TPIU_H
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/* Cortex-M3 Trace Port Interface Unit (TPIU) */
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/* --- TPIU registers ------------------------------------------------------ */
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/* Supported Synchronous Port Size (TPIU_SSPSR) */
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#define TPIU_SSPSR MMIO32(TPIU_BASE + 0x000)
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/* Current Synchronous Port Size (TPIU_CSPSR) */
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#define TPIU_CSPSR MMIO32(TPIU_BASE + 0x004)
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/* Asynchronous Clock Prescaler (TPIU_ACPR) */
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#define TPIU_ACPR MMIO32(TPIU_BASE + 0x010)
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/* Selected Pin Protocol (TPIU_SPPR) */
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#define TPIU_SPPR MMIO32(TPIU_BASE + 0x0F0)
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/* Formatter and Flush Status Register (TPIU_FFSR) */
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#define TPIU_FFSR MMIO32(TPIU_BASE + 0x300)
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/* Formatter and Flush Control Register (TPIU_FFCR) */
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#define TPIU_FFCR MMIO32(TPIU_BASE + 0x304)
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/* (TPIU_DEVID) */
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#define TPIU_DEVID MMIO32(TPIU_BASE + 0xFC8)
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/* TODO: PID, CID */
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/* --- TPIU_SSPSR values --------------------------------------------------- */
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/*
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* bit[N] == 0, trace port width of (N+1) not supported
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* bit[N] == 1, trace port width of (N+1) supported
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*/
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#define TPIU_SSPSR_BYTE (1 << 0)
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#define TPIU_SSPSR_HALFWORD (1 << 1)
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#define TPIU_SSPSR_WORD (1 << 3)
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/* --- TPIU_SSPSR values --------------------------------------------------- */
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/* Same format as TPIU_SSPSR, except only one is set */
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#define TPIU_CSPSR_BYTE (1 << 0)
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#define TPIU_CSPSR_HALFWORD (1 << 1)
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#define TPIU_CSPSR_WORD (1 << 3)
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/* --- TPIU_ACPR values ---------------------------------------------------- */
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/* Bits 31:16 - Reserved */
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/* Bits 15:0 - SWO output clock = Asynchronous_Reference_Clock/(value +1) */
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/* --- TPIU_SPPR values ---------------------------------------------------- */
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/* Bits 31:2 - Reserved */
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#define TPIU_SPPR_SYNC (0x0)
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#define TPIU_SPPR_ASYNC_MANCHESTER (0x1)
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#define TPIU_SPPR_ASYNC_NRZ (0x2)
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/* --- TPIU_FFSR values ---------------------------------------------------- */
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/* Bits 31:4 - Reserved */
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#define TPIU_FFSR_FTNONSTOP (1 << 3)
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#define TPIU_FFSR_TCPRESENT (1 << 2)
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#define TPIU_FFSR_FTSTOPPED (1 << 1)
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#define TPIU_FFSR_FLINPROG (1 << 0)
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/* --- TPIU_FFCR values ---------------------------------------------------- */
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/* Bits 31:9 - Reserved */
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#define TPIU_FFCR_TRIGIN (1 << 8)
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/* Bits 7:2 - Reserved */
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#define TPIU_FFCR_ENFCONT (1 << 1)
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/* Bit 0 - Reserved */
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/* --- TPIU_DEVID values ---------------------------------------------------- */
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/* Bits 31:16 - Reserved */
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/* Bits 15:12 - Implementation defined */
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#define TPUI_DEVID_NRZ_SUPPORTED (1 << 11)
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#define TPUI_DEVID_MANCHESTER_SUPPORTED (1 << 10)
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/* Bit 9 - RAZ, indicated that trace data and clock are supported */
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#define TPUI_DEVID_FIFO_SIZE_MASK (7 << 6)
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/* Bits 5:0 - Implementation defined */
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#endif
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@ -26,7 +26,7 @@
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/* --- DBGMCU registers ---------------------------------------------------- */
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#define DBGMCU_IDCODE MMIO32(DBGMCU_BASE + 0x00)
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#define DBGMCU_CR MMIO32(DBGCMU_BASE + 0x04)
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#define DBGMCU_CR MMIO32(DBGMCU_BASE + 0x04)
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/* DBGMCU_CR bits */
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#define DBGMCU_CR_SLEEP 0x00000001
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