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2010-05-19 Jeremy Bennett
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* debug/jtag.c (wishbone_write): Corrected writing when invalid
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address.
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2010-05-18 Jeremy Bennett
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* debug/jtag.c (go_command_read): Change in calling convention to
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spr_read and wishbone_read.
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(go_command_write): Change in calling convention to spr_write () and
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wishbone_write ().
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(spr_read): Status passed as argument. Correcly handle
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under- and over-run.
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(spr_write): Status passed as argument. Correcly handle under- and
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over-run.
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(wishbone_read): Correcly handle under- and over-run.
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(wishbone_write): Correcly handle under- and over-run.
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2010-05-15 Jeremy Bennett
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* debug/jtag.c (construct_response): Return type changed to void.
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(go_command): Number of bits passed as arg and on to subsidiary
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functions. Return type changed to void. Error message with invalid
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access type removed.
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(go_command_read): Number of bits passed as arg. Return type changed
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to void. Size validated against prior WRITE_COMMAND. Error message due
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to invalid modules removed. Over/under-run allowed.
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(go_command_write): Number of bits passed as arg. Return type changed
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to void. Size validated against prior WRITE_COMMAND. Error message due
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to invalid modules removed. Over/under-run allowed for.
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(jtag_reset): Return type changed to void.
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(jtag_shift_dr): Number of bits passed as arg and passed to subsidiary
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functions. Return type changed to void.
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(jtag_shift_ir): Number of bits passed as arg and checked. Return type
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changed to void.
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(null_read): No longer takes bit offset as argument, takes actual data
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size as argument. Internal logic simplied and works with
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under/over-run.
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(read_command): Number of bits passed as arg and checked. Return type
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changed to void.
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(read_control): Number of bits passed as arg and checked. Return type
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changed to void. Duplicate error messages eliminated.
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(select_module): Renamed from module_select. Number of bits passed as
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arg and checked. Return type changed to void.
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(spr_read): No longer takes bit offset as argument, takes actual data
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size as argument. Internal logic simplied and works with
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under/over-run.
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(spr_write): No longer takes bit offset as argument, takes actual data
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size as argument. Internal logic simplied and works with
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under/over-run.
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(validate_spr_fields): Takes access type, address and data size as
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arguments. No correction, just report errors/warnings.
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(validate_wb_fields): Takes access type, address and data size as
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arguments. No correction, just report errors.
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(wishbone_read): No longer takes bit offset as argument, takes actual
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data size as argument. Internal logic simplied and works with
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under/over-run.
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(wishbone_write): No longer takes bit offset as argument, takes actual
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data size as argument. Internal logic simplied and works with
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under/over-run.
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(write_command). Number of bits passed as arg and checked. Return type
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changed to void. Fields validated.
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(write_control). Number of bits passed as arg and checked. Return type
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changed to void. Duplicate error messages eliminated.
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* debug/jtag.h: Proforma for jtag_shift_dr and jtag_shift_ir
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changed to include number of bits and return type void.
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* libtoplevel.c (or1ksim_jtag_reset): Number of JTAG reset cycles
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defined locally here.
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* libtoplevel.c (or1ksim_jtag_shift_dr): Number of bits added as
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function argument and passed on to internal function.
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* libtoplevel.c (or1ksim_jtag_shift_ir): Number of bits added as
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function argument and passed on to internal function.
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* or1ksim.h: Proforma for or1ksim_jtag_shift_ir and
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or1ksim_jtag_shift_ir changed to include number of bits in reg.
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2010-05-13 Jeremy Bennett
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* debug/jtag.c (validate_spr_fields): More concise warnings,
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corrected length to 4, not 1.
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(reverse_bits): Fixed typo in one constant.
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* cpu/or1k/sprs.c (mtspr): Undocumented audio SPRs 0xfffd-0xffff
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and associated static vars "fo" and "audio_cnt" removed.
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2010-05-12 Jeremy Bennett
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* debug/jtag.c (go_command_read): Ensure null bytes set if no data
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due to error and correct CRC calcuated. Give warning for length of
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zero as well as too long.
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(wishbone_read): Set null bytes if there is a validation error.
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(null_read); New function set null bytes if erroneous read.
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(validate_spr_fields): Correctly return success when fields valid.
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(spr_read): Bytes reversed correctly.
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(read_control, write_control): Add separate message if no module
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selected.
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(read_control): Clear data and set CRC if error.
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(construct_response): Correctly compute number of bits.
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(go_command): Compute correct length in bits when access type is
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invalid.
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(write_command): Warnings in terms of bytes requested, not actual
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field. Separate warning for zero.
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2010-05-11 Jeremy Bennett
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* debug/jtag.c (validate_spr_fields): Check for length changed to
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4 bytes (was 1 word).
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(module_select): Save module ID, even if invalid.
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(go_command_read, go_command_write): Separate error message if
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module undefined.
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(wishbone_read): Corrected shifts by bit-off for JTAG bytes.
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2010-05-04 Jeremy Bennett
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2010-05-04 Jeremy Bennett
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* debug/jtag.c (module_select): Corrected parenthesis for
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* debug/jtag.c (module_select): Corrected parenthesis for
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computation of crc_in.
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computation of crc_in.
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(construct_response): Corrected parenthesis for computation of
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(construct_response): Corrected parenthesis for computation of
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skip_bytes and bit_off.
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skip_bytes and bit_off.
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