From f4db29d983c1864a65c33875672a3e8b6596a15b Mon Sep 17 00:00:00 2001 From: Joerg Wunsch Date: Thu, 19 Apr 2012 13:32:34 +0000 Subject: [PATCH] * stk500v2_private.h (struct pdata): add boot_start * stk500v2.c: For the "flash" pseudo-memory of Xmega devices, distinguish addresses between "application" and "boot" area. git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1081 81a1dc3b-b13d-400b-aceb-764788c761c2 --- ChangeLog | 6 ++++ stk500v2.c | 71 +++++++++++++++++++++++++++++++++++++--------- stk500v2_private.h | 3 ++ 3 files changed, 66 insertions(+), 14 deletions(-) diff --git a/ChangeLog b/ChangeLog index a5b93d12..b9883568 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2012-04-19 Joerg Wunsch + + * stk500v2_private.h (struct pdata): add boot_start + * stk500v2.c: For the "flash" pseudo-memory of Xmega devices, + distinguish addresses between "application" and "boot" area. + 2012-04-18 Joerg Wunsch * fileio.c (elf2b): When checking the bounds of the current diff --git a/stk500v2.c b/stk500v2.c index d70b219f..5db352af 100644 --- a/stk500v2.c +++ b/stk500v2.c @@ -289,6 +289,7 @@ void stk500v2_setup(PROGRAMMER * pgm) } memset(pgm->cookie, 0, sizeof(struct pdata)); PDATA(pgm)->command_sequence = 1; + PDATA(pgm)->boot_start = ULONG_MAX; } static void stk500v2_jtagmkII_setup(PROGRAMMER * pgm) @@ -1095,6 +1096,21 @@ static int stk500v2_initialize(PROGRAMMER * pgm, AVRPART * p) * This is an ATxmega device, must use XPROG protocol for the * remaining actions. */ + if ((p->flags & AVRPART_HAS_PDI) != 0) { + /* + * Find out where the border between application and boot area + * is. + */ + AVRMEM *bootmem = avr_locate_mem(p, "boot"); + AVRMEM *flashmem = avr_locate_mem(p, "flash"); + if (bootmem == NULL || flashmem == NULL) { + fprintf(stderr, + "%s: stk500v2_initialize(): Cannot locate \"flash\" and \"boot\" memories in description\n", + progname); + } else { + PDATA(pgm)->boot_start = bootmem->offset - flashmem->offset; + } + } stk600_setup_xprog(pgm); } else { stk600_setup_isp(pgm); @@ -3144,6 +3160,15 @@ static int stk600_xprog_program_enable(PROGRAMMER * pgm, AVRPART * p) return 0; } +static unsigned char stk600_xprog_memtype(PROGRAMMER * pgm, unsigned long addr) +{ + if (addr >= PDATA(pgm)->boot_start) + return XPRG_MEM_TYPE_BOOT; + else + return XPRG_MEM_TYPE_APPL; +} + + static void stk600_xprog_disable(PROGRAMMER * pgm) { unsigned char buf[2]; @@ -3166,9 +3191,10 @@ static int stk600_xprog_write_byte(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem, memset(b, 0, sizeof(b)); - if (strcmp(mem->desc, "flash") == 0 || - strcmp(mem->desc, "application") == 0 || - strcmp(mem->desc, "apptable") == 0) { + if (strcmp(mem->desc, "flash") == 0) { + memcode = stk600_xprog_memtype(pgm, addr); + } else if (strcmp(mem->desc, "application") == 0 || + strcmp(mem->desc, "apptable") == 0) { memcode = XPRG_MEM_TYPE_APPL; } else if (strcmp(mem->desc, "boot") == 0) { memcode = XPRG_MEM_TYPE_BOOT; @@ -3244,9 +3270,10 @@ static int stk600_xprog_read_byte(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem, { unsigned char b[8]; - if (strcmp(mem->desc, "flash") == 0 || - strcmp(mem->desc, "application") == 0 || - strcmp(mem->desc, "apptable") == 0) { + if (strcmp(mem->desc, "flash") == 0) { + b[1] = stk600_xprog_memtype(pgm, addr); + } else if (strcmp(mem->desc, "application") == 0 || + strcmp(mem->desc, "apptable") == 0) { b[1] = XPRG_MEM_TYPE_APPL; } else if (strcmp(mem->desc, "boot") == 0) { b[1] = XPRG_MEM_TYPE_BOOT; @@ -3295,7 +3322,7 @@ static int stk600_xprog_paged_load(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem, unsigned char *b; unsigned int offset; unsigned char memtype; - int n_bytes_orig = n_bytes; + int n_bytes_orig = n_bytes, dynamic_memtype = 0; unsigned long use_ext_addr = 0; /* @@ -3310,9 +3337,13 @@ static int stk600_xprog_paged_load(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem, * This is probably what AVR079 means when writing about the * "TIF address space". */ - if (strcmp(mem->desc, "flash") == 0 || - strcmp(mem->desc, "application") == 0 || - strcmp(mem->desc, "apptable") == 0) { + if (strcmp(mem->desc, "flash") == 0) { + memtype = 0; + dynamic_memtype = 1; + if (mem->size > 64 * 1024) + use_ext_addr = (1UL << 31); + } else if (strcmp(mem->desc, "application") == 0 || + strcmp(mem->desc, "apptable") == 0) { memtype = XPRG_MEM_TYPE_APPL; if (mem->size > 64 * 1024) use_ext_addr = (1UL << 31); @@ -3356,6 +3387,9 @@ static int stk600_xprog_paged_load(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem, } while (n_bytes != 0) { + if (dynamic_memtype) + memtype = stk600_xprog_memtype(pgm, addr - mem->offset); + b[0] = XPRG_CMD_READ_MEM; b[1] = memtype; b[2] = addr >> 24; @@ -3391,7 +3425,7 @@ static int stk600_xprog_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem, unsigned char *b; unsigned int offset; unsigned char memtype; - int n_bytes_orig = n_bytes; + int n_bytes_orig = n_bytes, dynamic_memtype = 0; size_t writesize; unsigned long use_ext_addr = 0; unsigned char writemode; @@ -3412,9 +3446,14 @@ static int stk600_xprog_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem, * This is probably what AVR079 means when writing about the * "TIF address space". */ - if (strcmp(mem->desc, "flash") == 0 || - strcmp(mem->desc, "application") == 0 || - strcmp(mem->desc, "apptable") == 0) { + if (strcmp(mem->desc, "flash") == 0) { + memtype = 0; + dynamic_memtype = 1; + writemode = (1 << XPRG_MEM_WRITE_WRITE); + if (mem->size > 64 * 1024) + use_ext_addr = (1UL << 31); + } else if (strcmp(mem->desc, "application") == 0 || + strcmp(mem->desc, "apptable") == 0) { memtype = XPRG_MEM_TYPE_APPL; writemode = (1 << XPRG_MEM_WRITE_WRITE); if (mem->size > 64 * 1024) @@ -3466,6 +3505,10 @@ static int stk600_xprog_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem, } while (n_bytes != 0) { + + if (dynamic_memtype) + memtype = stk600_xprog_memtype(pgm, addr - mem->offset); + if (page_size > 256) { /* * AVR079 is not quite clear. While it suggests that diff --git a/stk500v2_private.h b/stk500v2_private.h index 66a419b7..05b66d9d 100644 --- a/stk500v2_private.h +++ b/stk500v2_private.h @@ -312,6 +312,9 @@ struct pdata AVRPART *lastpart; + /* Start address of Xmega boot area */ + unsigned long boot_start; + /* * Chained pdata for the JTAG ICE mkII backend. This is used when * calling the backend functions for ISP/HVSP/PP programming