FreeCalypso > hg > freecalypso-tools
view loadtools/flash.h @ 497:74610c4f10f7
target-utils: added 10 ms delay at the end of abb_power_off()
The deosmification of the ABB access code (replacement of osmo_delay_ms()
bogus delays with correctly-timed ones, which are significantly shorter)
had one annoying side effect: when executing the poweroff command from
any of the programs, one last '=' prompt character was being sent (and
received by the x86 host) as the Calypso board powers off. With delays
being shorter now, the abb_power_off() function was returning and the
standalone program's main loop was printing its prompt before the Iota chip
fully executed the switch-off sequence!
I thought about inserting an endless tight loop at the end of the
abb_power_off() function, but the implemented solution of a 10 ms delay
is a little nicer IMO because if the DEVOFF operation doesn't happen for
some reason in a manual hacking scenario, there won't be an artificial
blocker in the form of a tight loop keeping us from further poking around.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 25 May 2019 20:44:05 +0000 |
parents | e7502631a0f9 |
children | 0dd2c87c1b63 |
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/* this header file contains definitions for fc-loadtool flash support */ /* * The following structures represent an "abstract" * description of flash devices. * * A "region" is a consecutive group of erase units of the same size. */ struct flash_region_desc { uint32_t sector_size; unsigned nsectors; }; #define CFI_MAX_REGIONS 4 /* * The info in struct flash_geom can be either * gathered from CFI or hard-coded. */ struct flash_geom { uint32_t total_size; unsigned nregions; struct flash_region_desc regions[CFI_MAX_REGIONS]; unsigned total_sectors; }; struct flash_idcheck { uint16_t offset; uint16_t expect_val; }; struct flash_bank_desc { uint32_t align_size; struct flash_geom *geom; struct flash_idcheck *idcheck_table; unsigned idcheck_num; }; struct flash_device_desc { char *name; struct flash_bank_desc *bank_desc; unsigned nbanks; struct flash_cmdset *cmdset; }; /* the following structures describe flash banks as accessible to us */ struct sector_info { uint32_t start; uint32_t size; }; struct flash_cmdset { char *cmdset_name; int (*reset_cmd)(); int (*status_cmd)(); int (*unlock_sector)(); int (*erase_sector)(); int (*prep_for_program)(); char *loadagent_setbase_cmd; char *loadagent_program_cmd; int needs_unlock; }; struct flash_bank_info { uint32_t base_addr; struct flash_bank_desc *bank_desc; struct flash_geom *geom; struct flash_cmdset *ops; struct sector_info *sectors; int idcheck_done; };