X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Farm_adi_v5.h;h=051c1bf0ff68000926bdc8a5b28737d6303904ea;hp=09b6b0d7401ae9d205c13e04f0da70e2c6e41cc0;hb=d0e763ac7ef6aa17b17bd00ccdfbccfb4eacda69;hpb=677b02b475870b7d9e5d86e9bf61dc28dae5a6e4 diff --git a/src/target/arm_adi_v5.h b/src/target/arm_adi_v5.h index 09b6b0d740..051c1bf0ff 100644 --- a/src/target/arm_adi_v5.h +++ b/src/target/arm_adi_v5.h @@ -16,9 +16,7 @@ * GNU General Public License for more details. * * * * You should have received a copy of the GNU General Public License * - * along with this program; if not, write to the * - * Free Software Foundation, Inc., * - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * + * along with this program. If not, see . * ***************************************************************************/ #ifndef ARM_ADI_V5_H @@ -31,18 +29,13 @@ * resources accessed through a MEM-AP. */ +#include #include "arm_jtag.h" -/* FIXME remove these JTAG-specific decls when mem_ap_read_buf_u32() - * is no longer JTAG-specific - */ -#define JTAG_DP_DPACC 0xA -#define JTAG_DP_APACC 0xB - /* three-bit ACK values for SWD access (sent LSB first) */ -#define SWD_ACK_OK 0x4 -#define SWD_ACK_WAIT 0x2 -#define SWD_ACK_FAULT 0x1 +#define SWD_ACK_OK 0x1 +#define SWD_ACK_WAIT 0x2 +#define SWD_ACK_FAULT 0x4 #define DPAP_WRITE 0 #define DPAP_READ 1 @@ -52,152 +45,132 @@ /* A[3:0] for DP registers; A[1:0] are always zero. * - JTAG accesses all of these via JTAG_DP_DPACC, except for * IDCODE (JTAG_DP_IDCODE) and ABORT (JTAG_DP_ABORT). - * - SWD accesses these directly, sometimes needing SELECT.CTRLSEL + * - SWD accesses these directly, sometimes needing SELECT.DPBANKSEL */ -#define DP_IDCODE BANK_REG(0x0, 0x0) /* SWD: read */ -#define DP_ABORT BANK_REG(0x0, 0x0) /* SWD: write */ -#define DP_CTRL_STAT BANK_REG(0x0, 0x4) /* r/w */ -#define DP_RESEND BANK_REG(0x0, 0x8) /* SWD: read */ -#define DP_SELECT BANK_REG(0x0, 0x8) /* JTAG: r/w; SWD: write */ -#define DP_RDBUFF BANK_REG(0x0, 0xC) /* read-only */ -#define DP_WCR BANK_REG(0x1, 0x4) /* SWD: r/w */ - -#define WCR_TO_TRN(wcr) ((uint32_t)(1 + (3 & ((wcr)) >> 8))) /* 1..4 clocks */ -#define WCR_TO_PRESCALE(wcr) ((uint32_t)(7 & ((wcr)))) /* impl defined */ +#define DP_DPIDR BANK_REG(0x0, 0x0) /* DPv1+: ro */ +#define DP_ABORT BANK_REG(0x0, 0x0) /* DPv1+: SWD: wo */ +#define DP_CTRL_STAT BANK_REG(0x0, 0x4) /* DPv0+: rw */ +#define DP_DLCR BANK_REG(0x1, 0x4) /* DPv1+: SWD: rw */ +#define DP_TARGETID BANK_REG(0x2, 0x4) /* DPv2: ro */ +#define DP_DLPIDR BANK_REG(0x3, 0x4) /* DPv2: ro */ +#define DP_EVENTSTAT BANK_REG(0x4, 0x4) /* DPv2: ro */ +#define DP_RESEND BANK_REG(0x0, 0x8) /* DPv1+: SWD: ro */ +#define DP_SELECT BANK_REG(0x0, 0x8) /* DPv0+: JTAG: rw; SWD: wo */ +#define DP_RDBUFF BANK_REG(0x0, 0xC) /* DPv0+: ro */ +#define DP_TARGETSEL BANK_REG(0x0, 0xC) /* DPv2: SWD: wo */ + +#define DLCR_TO_TRN(dlcr) ((uint32_t)(1 + ((3 & (dlcr)) >> 8))) /* 1..4 clocks */ /* Fields of the DP's AP ABORT register */ -#define DAPABORT (1 << 0) -#define STKCMPCLR (1 << 1) /* SWD-only */ -#define STKERRCLR (1 << 2) /* SWD-only */ -#define WDERRCLR (1 << 3) /* SWD-only */ -#define ORUNERRCLR (1 << 4) /* SWD-only */ +#define DAPABORT (1UL << 0) +#define STKCMPCLR (1UL << 1) /* SWD-only */ +#define STKERRCLR (1UL << 2) /* SWD-only */ +#define WDERRCLR (1UL << 3) /* SWD-only */ +#define ORUNERRCLR (1UL << 4) /* SWD-only */ /* Fields of the DP's CTRL/STAT register */ -#define CORUNDETECT (1 << 0) -#define SSTICKYORUN (1 << 1) +#define CORUNDETECT (1UL << 0) +#define SSTICKYORUN (1UL << 1) /* 3:2 - transaction mode (e.g. pushed compare) */ -#define SSTICKYCMP (1 << 4) -#define SSTICKYERR (1 << 5) -#define READOK (1 << 6) /* SWD-only */ -#define WDATAERR (1 << 7) /* SWD-only */ +#define SSTICKYCMP (1UL << 4) +#define SSTICKYERR (1UL << 5) +#define READOK (1UL << 6) /* SWD-only */ +#define WDATAERR (1UL << 7) /* SWD-only */ /* 11:8 - mask lanes for pushed compare or verify ops */ /* 21:12 - transaction counter */ -#define CDBGRSTREQ (1 << 26) -#define CDBGRSTACK (1 << 27) -#define CDBGPWRUPREQ (1 << 28) -#define CDBGPWRUPACK (1 << 29) -#define CSYSPWRUPREQ (1 << 30) -#define CSYSPWRUPACK (1 << 31) +#define CDBGRSTREQ (1UL << 26) +#define CDBGRSTACK (1UL << 27) +#define CDBGPWRUPREQ (1UL << 28) +#define CDBGPWRUPACK (1UL << 29) +#define CSYSPWRUPREQ (1UL << 30) +#define CSYSPWRUPACK (1UL << 31) /* MEM-AP register addresses */ -/* TODO: rename as MEM_AP_REG_* */ -#define AP_REG_CSW 0x00 -#define AP_REG_TAR 0x04 -#define AP_REG_DRW 0x0C -#define AP_REG_BD0 0x10 -#define AP_REG_BD1 0x14 -#define AP_REG_BD2 0x18 -#define AP_REG_BD3 0x1C -#define AP_REG_CFG 0xF4 /* big endian? */ -#define AP_REG_BASE 0xF8 - +#define MEM_AP_REG_CSW 0x00 +#define MEM_AP_REG_TAR 0x04 +#define MEM_AP_REG_TAR64 0x08 /* RW: Large Physical Address Extension */ +#define MEM_AP_REG_DRW 0x0C /* RW: Data Read/Write register */ +#define MEM_AP_REG_BD0 0x10 /* RW: Banked Data register 0-3 */ +#define MEM_AP_REG_BD1 0x14 +#define MEM_AP_REG_BD2 0x18 +#define MEM_AP_REG_BD3 0x1C +#define MEM_AP_REG_MBT 0x20 /* --: Memory Barrier Transfer register */ +#define MEM_AP_REG_BASE64 0xF0 /* RO: Debug Base Address (LA) register */ +#define MEM_AP_REG_CFG 0xF4 /* RO: Configuration register */ +#define MEM_AP_REG_BASE 0xF8 /* RO: Debug Base Address register */ /* Generic AP register address */ -#define AP_REG_IDR 0xFC +#define AP_REG_IDR 0xFC /* RO: Identification Register */ /* Fields of the MEM-AP's CSW register */ #define CSW_8BIT 0 #define CSW_16BIT 1 #define CSW_32BIT 2 -#define CSW_ADDRINC_MASK (3 << 4) -#define CSW_ADDRINC_OFF 0 -#define CSW_ADDRINC_SINGLE (1 << 4) -#define CSW_ADDRINC_PACKED (2 << 4) -#define CSW_DEVICE_EN (1 << 6) -#define CSW_TRIN_PROG (1 << 7) -#define CSW_SPIDEN (1 << 23) +#define CSW_ADDRINC_MASK (3UL << 4) +#define CSW_ADDRINC_OFF 0UL +#define CSW_ADDRINC_SINGLE (1UL << 4) +#define CSW_ADDRINC_PACKED (2UL << 4) +#define CSW_DEVICE_EN (1UL << 6) +#define CSW_TRIN_PROG (1UL << 7) +#define CSW_SPIDEN (1UL << 23) /* 30:24 - implementation-defined! */ -#define CSW_HPROT (1 << 25) /* ? */ -#define CSW_MASTER_DEBUG (1 << 29) /* ? */ -#define CSW_SPROT (1 << 30) -#define CSW_DBGSWENABLE (1 << 31) +#define CSW_HPROT (1UL << 25) /* ? */ +#define CSW_MASTER_DEBUG (1UL << 29) /* ? */ +#define CSW_SPROT (1UL << 30) +#define CSW_DBGSWENABLE (1UL << 31) -/** - * This represents an ARM Debug Interface (v5) Debug Access Port (DAP). - * A DAP has two types of component: one Debug Port (DP), which is a - * transport agent; and at least one Access Port (AP), controlling - * resource access. Most common is a MEM-AP, for memory access. - * - * There are two basic DP transports: JTAG, and ARM's low pin-count SWD. - * Accordingly, this interface is responsible for hiding the transport - * differences so upper layer code can largely ignore them. - * - * When the chip is implemented with JTAG-DP or SW-DP, the transport is - * fixed as JTAG or SWD, respectively. Chips incorporating SWJ-DP permit - * a choice made at board design time (by only using the SWD pins), or - * as part of setting up a debug session (if all the dual-role JTAG/SWD - * signals are available). - */ -struct adiv5_dap { - const struct dap_ops *ops; +/* Fields of the MEM-AP's IDR register */ +#define IDR_REV (0xFUL << 28) +#define IDR_JEP106 (0x7FFUL << 17) +#define IDR_CLASS (0xFUL << 13) +#define IDR_VARIANT (0xFUL << 4) +#define IDR_TYPE (0xFUL << 0) - struct arm_jtag *jtag_info; - /* Control config */ - uint32_t dp_ctrl_stat; +#define IDR_JEP106_ARM 0x04760000 - uint32_t apcsw[256]; - uint32_t apsel; +#define DP_SELECT_APSEL 0xFF000000 +#define DP_SELECT_APBANK 0x000000F0 +#define DP_SELECT_DPBANK 0x0000000F +#define DP_SELECT_INVALID 0x00FFFF00 /* Reserved bits one */ +/** + * This represents an ARM Debug Interface (v5) Access Port (AP). + * Most common is a MEM-AP, for memory access. + */ +struct adiv5_ap { /** - * Cache for DP_SELECT bits identifying the current AP. A DAP may - * connect to multiple APs, such as one MEM-AP for general access, - * another reserved for accessing debug modules, and a JTAG-DP. - * "-1" indicates no cached value. + * DAP this AP belongs to. */ - uint32_t ap_current; + struct adiv5_dap *dap; /** - * Cache for DP_SELECT bits identifying the current four-word AP - * register bank. This caches AP register addresss bits 7:4; JTAG - * and SWD access primitves pass address bits 3:2; bits 1:0 are zero. - * "-1" indicates no cached value. + * Number of this AP. */ - uint32_t ap_bank_value; + uint8_t ap_num; /** - * Cache for DP_SELECT bits identifying the current four-word DP - * register bank. This caches DP register addresss bits 7:4; JTAG - * and SWD access primitves pass address bits 3:2; bits 1:0 are zero. + * Default value for (MEM-AP) AP_REG_CSW register. */ - uint32_t dp_bank_value; + uint32_t csw_default; /** * Cache for (MEM-AP) AP_REG_CSW register value. This is written to * configure an access mode, such as autoincrementing AP_REG_TAR during * word access. "-1" indicates no cached value. */ - uint32_t ap_csw_value; + uint32_t csw_value; /** * Cache for (MEM-AP) AP_REG_TAR register value This is written to * configure the address being read or written * "-1" indicates no cached value. */ - uint32_t ap_tar_value; - - /* information about current pending SWjDP-AHBAP transaction */ - uint8_t ack; - - /** - * Holds the pointer to the destination word for the last queued read, - * for use with posted AP read sequence optimization. - */ - uint32_t *last_read; + uint32_t tar_value; /** * Configures how many extra tck clocks are added after starting a * MEM-AP access before we try to read its status (and/or result). */ - uint32_t memaccess_tck; + uint32_t memaccess_tck; /* Size of TAR autoincrement block, ARM ADI Specification requires at least 10 bits */ uint32_t tar_autoincr_block; @@ -207,12 +180,66 @@ struct adiv5_dap { /* true if unaligned memory access is not supported by the MEM-AP */ bool unaligned_access_bad; +}; + + +/** + * This represents an ARM Debug Interface (v5) Debug Access Port (DAP). + * A DAP has two types of component: one Debug Port (DP), which is a + * transport agent; and at least one Access Port (AP), controlling + * resource access. + * + * There are two basic DP transports: JTAG, and ARM's low pin-count SWD. + * Accordingly, this interface is responsible for hiding the transport + * differences so upper layer code can largely ignore them. + * + * When the chip is implemented with JTAG-DP or SW-DP, the transport is + * fixed as JTAG or SWD, respectively. Chips incorporating SWJ-DP permit + * a choice made at board design time (by only using the SWD pins), or + * as part of setting up a debug session (if all the dual-role JTAG/SWD + * signals are available). + */ +struct adiv5_dap { + const struct dap_ops *ops; + + /* dap transaction list for WAIT support */ + struct list_head cmd_journal; + + struct jtag_tap *tap; + /* Control config */ + uint32_t dp_ctrl_stat; + + struct adiv5_ap ap[256]; + + /* The current manually selected AP by the "dap apsel" command */ + uint32_t apsel; + + /** + * Cache for DP_SELECT register. A value of DP_SELECT_INVALID + * indicates no cached value and forces rewrite of the register. + */ + uint32_t select; + + /* information about current pending SWjDP-AHBAP transaction */ + uint8_t ack; + + /** + * Holds the pointer to the destination word for the last queued read, + * for use with posted AP read sequence optimization. + */ + uint32_t *last_read; /* The TI TMS470 and TMS570 series processors use a BE-32 memory ordering * despite lack of support in the ARMv7 architecture. Memory access through * the AHB-AP has strange byte ordering these processors, and we need to * swizzle appropriately. */ bool ti_be_32_quirks; + + /** + * Signals that an attempt to reestablish communication afresh + * should be performed before the next access. + */ + bool do_reconnect; }; /** @@ -223,11 +250,6 @@ struct adiv5_dap { * available until run(). */ struct dap_ops { - /** If the DAP transport isn't SWD, it must be JTAG. Upper level - * code may need to care about the difference in some cases. - */ - bool is_swd; - /** DP register read. */ int (*queue_dp_read)(struct adiv5_dap *dap, unsigned reg, uint32_t *data); @@ -236,10 +258,10 @@ struct dap_ops { uint32_t data); /** AP register read. */ - int (*queue_ap_read)(struct adiv5_dap *dap, unsigned reg, + int (*queue_ap_read)(struct adiv5_ap *ap, unsigned reg, uint32_t *data); /** AP register write. */ - int (*queue_ap_write)(struct adiv5_dap *dap, unsigned reg, + int (*queue_ap_write)(struct adiv5_ap *ap, unsigned reg, uint32_t data); /** AP operation abort. */ @@ -247,15 +269,28 @@ struct dap_ops { /** Executes all queued DAP operations. */ int (*run)(struct adiv5_dap *dap); + + /** Executes all queued DAP operations but doesn't check + * sticky error conditions */ + int (*sync)(struct adiv5_dap *dap); +}; + +/* + * Access Port classes + */ +enum ap_class { + AP_CLASS_NONE = 0x00000, /* No class defined */ + AP_CLASS_MEM_AP = 0x10000, /* MEM-AP */ }; /* * Access Port types */ enum ap_type { - AP_TYPE_AHB_AP = 0x01, /* AHB Memory-AP */ - AP_TYPE_APB_AP = 0x02, /* APB Memory-AP */ - AP_TYPE_JTAG_AP = 0x10 /* JTAG-AP - JTAG master for controlling other JTAG devices */ + AP_TYPE_JTAG_AP = 0x0, /* JTAG-AP - JTAG master for controlling other JTAG devices */ + AP_TYPE_AHB_AP = 0x1, /* AHB Memory-AP */ + AP_TYPE_APB_AP = 0x2, /* APB Memory-AP */ + AP_TYPE_AXI_AP = 0x4, /* AXI Memory-AP */ }; /** @@ -298,34 +333,34 @@ static inline int dap_queue_dp_write(struct adiv5_dap *dap, /** * Queue an AP register read. * - * @param dap The DAP used for reading. + * @param ap The AP used for reading. * @param reg The number of the AP register being read. * @param data Pointer saying where to store the register's value * (in host endianness). * * @return ERROR_OK for success, else a fault code. */ -static inline int dap_queue_ap_read(struct adiv5_dap *dap, +static inline int dap_queue_ap_read(struct adiv5_ap *ap, unsigned reg, uint32_t *data) { - assert(dap->ops != NULL); - return dap->ops->queue_ap_read(dap, reg, data); + assert(ap->dap->ops != NULL); + return ap->dap->ops->queue_ap_read(ap, reg, data); } /** * Queue an AP register write. * - * @param dap The DAP used for writing. + * @param ap The AP used for writing. * @param reg The number of the AP register being written. * @param data Value being written (host endianness) * * @return ERROR_OK for success, else a fault code. */ -static inline int dap_queue_ap_write(struct adiv5_dap *dap, +static inline int dap_queue_ap_write(struct adiv5_ap *ap, unsigned reg, uint32_t data) { - assert(dap->ops != NULL); - return dap->ops->queue_ap_write(dap, reg, data); + assert(ap->dap->ops != NULL); + return ap->dap->ops->queue_ap_write(ap, reg, data); } /** @@ -361,6 +396,14 @@ static inline int dap_run(struct adiv5_dap *dap) return dap->ops->run(dap); } +static inline int dap_sync(struct adiv5_dap *dap) +{ + assert(dap->ops != NULL); + if (dap->ops->sync) + return dap->ops->sync(dap); + return ERROR_OK; +} + static inline int dap_dp_read_atomic(struct adiv5_dap *dap, unsigned reg, uint32_t *value) { @@ -381,7 +424,7 @@ static inline int dap_dp_poll_register(struct adiv5_dap *dap, unsigned reg, int ret; uint32_t regval; - LOG_DEBUG("DAP: poll %x, mask 0x08%" PRIx32 ", value 0x%08" PRIx32, + LOG_DEBUG("DAP: poll %x, mask 0x%08" PRIx32 ", value 0x%08" PRIx32, reg, mask, value); do { ret = dap_dp_read_atomic(dap, reg, ®val); @@ -396,81 +439,60 @@ static inline int dap_dp_poll_register(struct adiv5_dap *dap, unsigned reg, if (!timeout) { LOG_DEBUG("DAP: poll %x timeout", reg); - return ERROR_FAIL; + return ERROR_WAIT; } else { return ERROR_OK; } } -/** Accessor for currently selected DAP-AP number (0..255) */ -static inline uint8_t dap_ap_get_select(struct adiv5_dap *swjdp) -{ - return (uint8_t)(swjdp->ap_current >> 24); -} - -/* AP selection applies to future AP transactions */ -void dap_ap_select(struct adiv5_dap *dap, uint8_t ap); - -/* Queued AP transactions */ -int dap_setup_accessport(struct adiv5_dap *swjdp, - uint32_t csw, uint32_t tar); - -/* Queued MEM-AP memory mapped single word transfers */ -int mem_ap_read_u32(struct adiv5_dap *swjdp, uint32_t address, uint32_t *value); -int mem_ap_write_u32(struct adiv5_dap *swjdp, uint32_t address, uint32_t value); - -/* Synchronous MEM-AP memory mapped single word transfers */ -int mem_ap_read_atomic_u32(struct adiv5_dap *swjdp, +/* Queued MEM-AP memory mapped single word transfers. */ +int mem_ap_read_u32(struct adiv5_ap *ap, uint32_t address, uint32_t *value); -int mem_ap_write_atomic_u32(struct adiv5_dap *swjdp, +int mem_ap_write_u32(struct adiv5_ap *ap, uint32_t address, uint32_t value); -/* Queued MEM-AP memory mapped single word transfers with selection of ap */ -int mem_ap_sel_read_u32(struct adiv5_dap *swjdp, uint8_t ap, +/* Synchronous MEM-AP memory mapped single word transfers. */ +int mem_ap_read_atomic_u32(struct adiv5_ap *ap, uint32_t address, uint32_t *value); -int mem_ap_sel_write_u32(struct adiv5_dap *swjdp, uint8_t ap, +int mem_ap_write_atomic_u32(struct adiv5_ap *ap, uint32_t address, uint32_t value); -/* Synchronous MEM-AP memory mapped single word transfers with selection of ap */ -int mem_ap_sel_read_atomic_u32(struct adiv5_dap *swjdp, uint8_t ap, - uint32_t address, uint32_t *value); -int mem_ap_sel_write_atomic_u32(struct adiv5_dap *swjdp, uint8_t ap, - uint32_t address, uint32_t value); - -/* Synchronous MEM-AP memory mapped bus block transfers */ -int mem_ap_read(struct adiv5_dap *dap, uint8_t *buffer, uint32_t size, - uint32_t count, uint32_t address, bool addrinc); -int mem_ap_write(struct adiv5_dap *dap, const uint8_t *buffer, uint32_t size, - uint32_t count, uint32_t address, bool addrinc); - -/* Synchronous MEM-AP memory mapped bus block transfers with selection of ap */ -int mem_ap_sel_read_buf(struct adiv5_dap *swjdp, uint8_t ap, +/* Synchronous MEM-AP memory mapped bus block transfers. */ +int mem_ap_read_buf(struct adiv5_ap *ap, uint8_t *buffer, uint32_t size, uint32_t count, uint32_t address); -int mem_ap_sel_write_buf(struct adiv5_dap *swjdp, uint8_t ap, +int mem_ap_write_buf(struct adiv5_ap *ap, const uint8_t *buffer, uint32_t size, uint32_t count, uint32_t address); -/* Synchronous, non-incrementing buffer functions for accessing fifos, with - * selection of ap */ -int mem_ap_sel_read_buf_noincr(struct adiv5_dap *swjdp, uint8_t ap, +/* Synchronous, non-incrementing buffer functions for accessing fifos. */ +int mem_ap_read_buf_noincr(struct adiv5_ap *ap, uint8_t *buffer, uint32_t size, uint32_t count, uint32_t address); -int mem_ap_sel_write_buf_noincr(struct adiv5_dap *swjdp, uint8_t ap, +int mem_ap_write_buf_noincr(struct adiv5_ap *ap, const uint8_t *buffer, uint32_t size, uint32_t count, uint32_t address); +/* Create DAP struct */ +struct adiv5_dap *dap_init(void); + /* Initialisation of the debug system, power domains and registers */ -int ahbap_debugport_init(struct adiv5_dap *swjdp); +int dap_dp_init(struct adiv5_dap *dap); +int mem_ap_init(struct adiv5_ap *ap); /* Probe the AP for ROM Table location */ -int dap_get_debugbase(struct adiv5_dap *dap, int ap, +int dap_get_debugbase(struct adiv5_ap *ap, uint32_t *dbgbase, uint32_t *apid); /* Probe Access Ports to find a particular type */ int dap_find_ap(struct adiv5_dap *dap, enum ap_type type_to_find, - uint8_t *ap_num_out); + struct adiv5_ap **ap_out); + +static inline struct adiv5_ap *dap_ap(struct adiv5_dap *dap, uint8_t ap_num) +{ + return &dap->ap[ap_num]; +} /* Lookup CoreSight component */ -int dap_lookup_cs_component(struct adiv5_dap *dap, int ap, - uint32_t dbgbase, uint8_t type, uint32_t *addr); +int dap_lookup_cs_component(struct adiv5_ap *ap, + uint32_t dbgbase, uint8_t type, uint32_t *addr, int32_t *idx); struct target;