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PIC32: add flash algorithm support

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Add flash algorithm support for the PIC32MX.
Still a few things todo but this dramatically decreases
the programing time, eg. approx programming for 2.5k test file.
 - without fastload: 60secs
 - with fastload: 45secs
 - with fastload and algorithm: 2secs.

Add new devices to supported list.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
This commit is contained in:
Spencer Oliver
2010-03-08 22:54:18 +00:00
parent f10ed95a5c
commit 257a764582
6 changed files with 250 additions and 479 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/target/mips32_pracc.c
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@@ -969,7 +969,7 @@ int mips32_pracc_fastdata_xfer(struct mips_ejtag *ejtag_info, struct working_are
/* write program into RAM */
mips32_pracc_write_mem32(ejtag_info, source->address, ARRAY_SIZE(handler_code), handler_code);
LOG_DEBUG("%s using 0x%.8" PRIx32 " for write handler\n", __func__, source->address);
LOG_DEBUG("%s using 0x%.8" PRIx32 " for write handler", __func__, source->address);
jmp_code[1] |= UPPER16(source->address);
jmp_code[2] |= LOWER16(source->address);
@@ -1030,7 +1030,7 @@ int mips32_pracc_fastdata_xfer(struct mips_ejtag *ejtag_info, struct working_are
mips_ejtag_drscan_32(ejtag_info, &address);
if (address != MIPS32_PRACC_TEXT)
LOG_ERROR("mini program did not return to start\n");
LOG_ERROR("mini program did not return to start");
return retval;
}

4
src/target/mips_ejtag.h
View File

@@ -40,6 +40,10 @@
#define EJTAG_INST_TCBDATA 0x12
#define EJTAG_INST_BYPASS 0xFF
/* microchip PIC32MX specific instructions */
#define MTAP_SW_MTAP 0x04
#define MTAP_SW_ETAP 0x05
/* ejtag control register bits ECR */
#define EJTAG_CTRL_TOF (1 << 1)
#define EJTAG_CTRL_TIF (1 << 2)

2
src/target/mips_m4k.c
View File

@@ -914,7 +914,7 @@ int mips_m4k_examine(struct target *target)
{
/* we are using a pic32mx so select ejtag port
* as it is not selected by default */
mips_ejtag_set_instr(ejtag_info, 0x05, NULL);
mips_ejtag_set_instr(ejtag_info, MTAP_SW_ETAP, NULL);
LOG_DEBUG("PIC32MX Detected - using EJTAG Interface");
}
}