From ed085f379e3fb53cce4d788d5b18cc5a7dcba026 Mon Sep 17 00:00:00 2001 From: Oleksij Rempel Date: Thu, 14 Aug 2014 22:10:33 +0100 Subject: [PATCH] mips_ejtag.c|h: use version specific IMPs and make version specific debug log Change-Id: I17f7ff757cfa1264a1dadbfe20c5e21de62ef87a Signed-off-by: Oleksij Rempel Reviewed-on: http://openocd.zylin.com/1929 Tested-by: jenkins Reviewed-by: Spencer Oliver --- src/target/mips_ejtag.c | 57 +++++++++++++++++++++++++++++++++++------ src/target/mips_ejtag.h | 35 ++++++++++++++++++++----- 2 files changed, 78 insertions(+), 14 deletions(-) diff --git a/src/target/mips_ejtag.c b/src/target/mips_ejtag.c index 277c1d44..375cf517 100644 --- a/src/target/mips_ejtag.c +++ b/src/target/mips_ejtag.c @@ -341,6 +341,54 @@ static void mips_ejtag_init_mmr(struct mips_ejtag *ejtag_info) } } +static void ejtag_v20_print_imp(struct mips_ejtag *ejtag_info) +{ + LOG_DEBUG("EJTAG v2.0: features:%s%s%s%s%s%s%s%s", + EJTAG_IMP_HAS(EJTAG_V20_IMP_SDBBP) ? " SDBBP_SPECIAL2" : " SDBBP", + EJTAG_IMP_HAS(EJTAG_V20_IMP_EADDR_NO32BIT) ? " EADDR>32bit" : " EADDR=32bit", + EJTAG_IMP_HAS(EJTAG_V20_IMP_COMPLEX_BREAK) ? " COMPLEX_BREAK" : "", + EJTAG_IMP_HAS(EJTAG_V20_IMP_DCACHE_COH) ? " DCACHE_COH" : " DCACHE_NOT_COH", + EJTAG_IMP_HAS(EJTAG_V20_IMP_ICACHE_COH) ? " ICACHE_COH" : " ICACHE_NOT_COH", + EJTAG_IMP_HAS(EJTAG_V20_IMP_NOPB) ? " noPB" : " PB", + EJTAG_IMP_HAS(EJTAG_V20_IMP_NODB) ? " noDB" : " DB", + EJTAG_IMP_HAS(EJTAG_V20_IMP_NOIB) ? " noIB" : " IB"); + LOG_DEBUG("EJTAG v2.0: Break Channels: %i", + (ejtag_info->impcode >> EJTAG_V20_IMP_BCHANNELS_SHIFT) & + EJTAG_V20_IMP_BCHANNELS_MASK); +} + +static void ejtag_v26_print_imp(struct mips_ejtag *ejtag_info) +{ + LOG_DEBUG("EJTAG v2.6: features:%s%s", + EJTAG_IMP_HAS(EJTAG_V26_IMP_R3K) ? " R3k" : " R4k", + EJTAG_IMP_HAS(EJTAG_V26_IMP_DINT) ? " DINT" : ""); +} + +static void ejtag_main_print_imp(struct mips_ejtag *ejtag_info) +{ + LOG_DEBUG("EJTAG main: features:%s%s%s%s%s", + EJTAG_IMP_HAS(EJTAG_IMP_ASID8) ? " ASID_8" : "", + EJTAG_IMP_HAS(EJTAG_IMP_ASID6) ? " ASID_6" : "", + EJTAG_IMP_HAS(EJTAG_IMP_MIPS16) ? " MIPS16" : "", + EJTAG_IMP_HAS(EJTAG_IMP_NODMA) ? " noDMA" : " DMA", + EJTAG_IMP_HAS(EJTAG_DCR_MIPS64) ? " MIPS64" : " MIPS32"); + + switch (ejtag_info->ejtag_version) { + case EJTAG_VERSION_20: + ejtag_v20_print_imp(ejtag_info); + break; + case EJTAG_VERSION_25: + case EJTAG_VERSION_26: + case EJTAG_VERSION_31: + case EJTAG_VERSION_41: + case EJTAG_VERSION_51: + ejtag_v26_print_imp(ejtag_info); + break; + default: + break; + } +} + int mips_ejtag_init(struct mips_ejtag *ejtag_info) { int retval; @@ -376,14 +424,7 @@ int mips_ejtag_init(struct mips_ejtag *ejtag_info) LOG_DEBUG("EJTAG: Unknown Version Detected"); break; } - LOG_DEBUG("EJTAG: features:%s%s%s%s%s%s%s", - ejtag_info->impcode & EJTAG_IMP_R3K ? " R3k" : " R4k", - ejtag_info->impcode & EJTAG_IMP_DINT ? " DINT" : "", - ejtag_info->impcode & (1 << 22) ? " ASID_8" : "", - ejtag_info->impcode & (1 << 21) ? " ASID_6" : "", - ejtag_info->impcode & EJTAG_IMP_MIPS16 ? " MIPS16" : "", - ejtag_info->impcode & EJTAG_IMP_NODMA ? " noDMA" : " DMA", - ejtag_info->impcode & EJTAG_DCR_MIPS64 ? " MIPS64" : " MIPS32"); + ejtag_main_print_imp(ejtag_info); if ((ejtag_info->impcode & EJTAG_IMP_NODMA) == 0) { LOG_DEBUG("EJTAG: DMA Access Mode detected. Disabling to " diff --git a/src/target/mips_ejtag.h b/src/target/mips_ejtag.h index ead0876d..4c8933c7 100644 --- a/src/target/mips_ejtag.h +++ b/src/target/mips_ejtag.h @@ -97,11 +97,35 @@ #define EJTAG_DEBUG_DM (1 << 30) #define EJTAG_DEBUG_DBD (1 << 31) -/* implementaion register bits */ -#define EJTAG_IMP_R3K (1 << 28) -#define EJTAG_IMP_DINT (1 << 24) -#define EJTAG_IMP_NODMA (1 << 14) +/* implementation MIPS register bits. + * Bits marked with V20 or v2.0 mean that, this registers supported only + * by EJTAG v2.0. Bits marked with Lexra or BMIPS are different from the + * official EJATG. + * NOTE: Lexra or BMIPS use EJTAG v2.0 */ + +#define EJTAG_IMP_HAS(x) (ejtag_info->impcode & (x)) +/* v2.0(Lexra) 29 - 1’b1 - Lexra Internal Trace Buffer implemented. This bit + * overlaps with version bit of MIPS EJTAG specification. */ +#define EJTAG_V26_IMP_R3K (1 << 28) +/* v2.0 - 24:25 - 2’b00- No profiling support */ +#define EJTAG_V26_IMP_DINT (1 << 24) +#define EJTAG_V20_IMP_SDBBP (1 << 23) /* 1’b1 - sdbbp is Special2 Opcode */ +#define EJTAG_IMP_ASID8 (1 << 22) +#define EJTAG_IMP_ASID6 (1 << 21) +#define EJTAG_V20_IMP_COMPLEX_BREAK (1 << 20) /* Complex Breaks supported*/ +#define EJTAG_V20_IMP_EADDR_NO32BIT (1 << 19) /* EJTAG_ADDR > 32 bits wide */ +#define EJTAG_V20_IMP_DCACHE_COH (1 << 18) /* DCache does keep DMA coherent */ +#define EJTAG_V20_IMP_ICACHE_COH (1 << 17) /* DCache does keep DMA coherent */ #define EJTAG_IMP_MIPS16 (1 << 16) +#define EJTAG_IMP_NODMA (1 << 14) +/* v2.0 - 11:13 external PC trace. Trace PC Width. */ +/* v2.0 - 8:10 external PC trace. PCST Width and DCLK Division Factor */ +#define EJTAG_V20_IMP_NOPB (1 << 7) /* no processor breaks */ +#define EJTAG_V20_IMP_NODB (1 << 6) /* no data breaks */ +#define EJTAG_V20_IMP_NOIB (1 << 5) /* no instruction breaks implemented */ +/* v2.0 - 1:4 Number of Break Channels. */ +#define EJTAG_V20_IMP_BCHANNELS_MASK 0xf +#define EJTAG_V20_IMP_BCHANNELS_SHIFT 1 #define EJTAG_DCR_MIPS64 (1 << 0) /* Debug Control Register DCR */ @@ -184,8 +208,7 @@ struct mips_ejtag { uint32_t ejtag_dbasid_offs; /* DAB ASID (4Kc) */ uint32_t ejtag_iba_step_size; - uint32_t ejtag_dba_step_size; /* siez of step till next - * *DBAn register. */ + uint32_t ejtag_dba_step_size; /* size of step till next *DBAn register. */ }; void mips_ejtag_set_instr(struct mips_ejtag *ejtag_info, -- 2.39.5