On Mon, Apr 4, 2011 at 2:51 PM, Drasko DRASKOVIC
<drasko.drasko...@gmail.com> wrote:
> Hi all,
> here is a set of patched (separeted by the logical changes they
> introduce) that :
> 1) Correct endianess for big endian targets
> 2) Correct while(1) loop waiting for PrAcc to be "1"
> 3) Change FASTDATA operation, forcing the shift out to prevent "ft2232
> buffer size reached" errors
> 4) Add optimizations similar to ones introduced by Øyvind recently
>
> With these patches I was able to obtain decent performances and
> correct functioning for my big endian MIPS-M14Kc based target.
>
> I see no more problems with libftdi of type :
> Error: couldn't read enough bytes from FT2232 device (0 < 5)
> Current stable version of libftdi can be used, no need for closed D2XX
> files nor for development branches of libusb-1.0
>
> I also have no more problems with GDB synchronisation - ELF can be
> correctly downloaded and executed from GDB.
>
> Best regards,
> Drasko
>

Hi Drasko,

I reverted the patches I used previously and applied your 4 patches
but load_image is now much slower:

Debug: 132 223732 command.c:151 script_debug(): command - ocd_command
ocd_command type ocd_halt
Debug: 133 223732 command.c:151 script_debug(): command - halt ocd_halt
Debug: 135 223738 target.c:2196 handle_halt_command(): -
Debug: 136 223738 mips_m4k.c:182 mips_m4k_halt(): target->state: running
Debug: 137 223746 mips_ejtag.c:239 mips_ejtag_enter_debug():
ejtag_ctrl: 0x4004c008
Debug: 141 225374 mips_m4k.c:109 mips_m4k_debug_entry(): entered debug
state at PC 0x83fe4128, target->state: halted
Debug: 142 225374 target.c:1053 target_call_event_callbacks(): target
event 2 (gdb-halt)
Debug: 143 225374 target.c:1053 target_call_event_callbacks(): target
event 3 (halted)
User : 144 225374 target.c:1330 target_arch_state(): target state: halted
User : 145 225374 mips32.c:259 mips32_arch_state(): target halted in
MIPS32 mode due to debug-request, pc: 0x83fe4128
Debug: 146 227896 command.c:151 script_debug(): command - ocd_command
ocd_command type ocd_load_image u-boot.bin.new 0xa0400000
Debug: 147 227897 command.c:151 script_debug(): command - load_image
ocd_load_image u-boot.bin.new 0xa0400000
Debug: 149 227903 configuration.c:87 find_file(): found u-boot.bin.new
Debug: 150 227903 configuration.c:87 find_file(): found u-boot.bin.new
Debug: 151 227904 target.c:1346 target_write_buffer(): writing buffer
of 109628 byte at 0xa0400000
Debug: 152 227904 mips_m4k.c:1037 mips_m4k_bulk_write_memory():
address: 0xa0400000, count: 0x00006b0f
Debug: 153 227904 target.c:1157 target_alloc_working_area_try(): MMU
disabled, using physical address for working memory 0xa0010000
Debug: 154 227904 target.c:1217 target_alloc_working_area_try():
allocated new working area at address 0xa0010000
Debug: 158 229698 mips32_pracc.c:1018 mips32_pracc_fastdata_xfer():
mips32_pracc_fastdata_xfer using 0xa0010000 for write handler
Debug: 159 284584 log.c:437 keep_alive(): keep_alive() was not invoked
in the 1000ms timelimit (55226). This may cause trouble with GDB
connections.
User : 161 284588 command.c:557 command_print(): 109628 bytes written
at address 0xa0400000
User : 162 284588 command.c:557 command_print(): downloaded 109628
bytes in 56.685356s (1.889 KiB/s)


Compared to the version I was using previously which just had the two
patches for endianness:

Debug: 100 50064 command.c:151 script_debug(): command - ocd_command
ocd_command type ocd_halt
Debug: 101 50065 command.c:151 script_debug(): command - halt ocd_halt
Debug: 103 50071 target.c:2196 handle_halt_command(): -
Debug: 104 50071 mips_m4k.c:178 mips_m4k_halt(): target->state: running
Debug: 105 50079 mips_ejtag.c:218 mips_ejtag_enter_debug():
ejtag_ctrl: 0x4004c008
Debug: 111 52855 mips_m4k.c:109 mips_m4k_debug_entry(): entered debug
state at PC 0x83fe4128, target->state: halted
Debug: 112 52855 target.c:1053 target_call_event_callbacks(): target
event 2 (gdb-halt)
Debug: 113 52855 target.c:1053 target_call_event_callbacks(): target
event 3 (halted)
User : 114 52855 target.c:1330 target_arch_state(): target state: halted
User : 115 52855 mips32.c:259 mips32_arch_state(): target halted in
MIPS32 mode due to debug-request, pc: 0x83fe4128
Debug: 116 54993 command.c:151 script_debug(): command - ocd_command
ocd_command type ocd_load_image u-boot.bin.new 0xa0400000
Debug: 117 54993 command.c:151 script_debug(): command - load_image
ocd_load_image u-boot.bin.new 0xa0400000
Debug: 119 54999 configuration.c:87 find_file(): found u-boot.bin.new
Debug: 120 54999 configuration.c:87 find_file(): found u-boot.bin.new
Debug: 121 55000 target.c:1346 target_write_buffer(): writing buffer
of 109628 byte at 0xa0400000
Debug: 122 55000 mips_m4k.c:1016 mips_m4k_bulk_write_memory():
address: 0xa0400000, count: 0x00006b0f
Debug: 123 55000 target.c:1157 target_alloc_working_area_try(): MMU
disabled, using physical address for working memory 0xa0010000
Debug: 124 55000 target.c:1217 target_alloc_working_area_try():
allocated new working area at address 0xa0010000
Debug: 131 58210 mips32_pracc.c:995 mips32_pracc_fastdata_xfer():
mips32_pracc_fastdata_xfer using 0xa0010000 for write handler
Debug: 133 58513 ft2232.c:1959 ft2232_execute_scan(): ft2232 buffer
size reached, sending queued commands (first_unsent: 0xb74db008, cmd:
0xb73e1fe8)
Debug: 134 58781 ft2232.c:1959 ft2232_execute_scan(): ft2232 buffer
size reached, sending queued commands (first_unsent: 0xb73e1fe8, cmd:
0xb72e8fac)
Debug: 135 59049 ft2232.c:1959 ft2232_execute_scan(): ft2232 buffer
size reached, sending queued commands (first_unsent: 0xb72e8fac, cmd:
0xb71eff28)
User : 137 59354 command.c:557 command_print(): 109628 bytes written
at address 0xa0400000
User : 138 59354 command.c:557 command_print(): downloaded 109628
bytes in 4.355341s (24.581 KiB/s)

Andy
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