From 6c2a65c743a4ffae96ed27dbc38c1bf9242ed1df Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Tue, 30 Dec 2008 22:35:53 -0800 Subject: Save/restore registers to host during memory operations. Cache ROM data. Because the debug port uses instructions for most operations, the debug code will clobber registers used by the running program. Save and restore these to avoid corrupting application data. If the ROM file is known, use that to return data instead of fetching it from the target to improve performance. Signed-off-by: Keith Packard --- lib/ccdbg-flash.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'lib/ccdbg-flash.c') diff --git a/lib/ccdbg-flash.c b/lib/ccdbg-flash.c index 8b3390c7..8a586a21 100644 --- a/lib/ccdbg-flash.c +++ b/lib/ccdbg-flash.c @@ -288,13 +288,14 @@ ccdbg_flash_hex_image(struct ccdbg *dbg, struct hex_image *image) ccdbg_debug(CC_DEBUG_FLASH, "Upload %d bytes at 0x%04x\n", this_time, ram_addr); ccdbg_write_memory(dbg, ram_addr, image->data + start, this_time); - +#if 0 ccdbg_debug(CC_DEBUG_FLASH, "Verify %d bytes in ram\n", this_time); ccdbg_read_memory(dbg, ram_addr, verify, this_time); if (memcmp (image->data + start, verify, this_time) != 0) { fprintf(stderr, "ram verify failed\n"); return 1; } +#endif flash_addr = image->address + start; flash_word_addr = flash_addr >> 1; @@ -324,10 +325,13 @@ ccdbg_flash_hex_image(struct ccdbg *dbg, struct hex_image *image) status = ccdbg_resume(dbg); for (times = 0; times < 10; times++) { status = ccdbg_read_status(dbg); - ccdbg_debug(CC_DEBUG_FLASH, "chip status is 0x%02x\n", status); + ccdbg_debug(CC_DEBUG_FLASH, "."); + ccdbg_flush(CC_DEBUG_FLASH); if ((status & CC_STATUS_CPU_HALTED) != 0) break; + usleep(10000); } + ccdbg_debug(CC_DEBUG_FLASH, "\n"); if (times == 10) { fprintf(stderr, "flash page timed out\n"); return 1; -- cgit v1.2.3