auracaster/openocd
3
0
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

lpc3180: LPC3180(LPC3250) SLC driver implemented

Browse Source 
Until this time only basic  SLC functionality exists when you want to use SLC to access external nand flash.
Basic functionality can be selected with command:
     lpc3180 select 0 slc
It is anyway very slow to write/read to/from nand flash.

With the new command, SLC speed improved about 20 times, and hardware ECC info also read/written from/to nand flash OOB area:
     lpc3180 select 0 slc bulk
Speed improvement achieved by using working are in SRAM of the LPC3250 chip and controlling DMA controller to interact between SRAM and SLC peripheral.

Here are the patches, and if they are ok than take them.
Tested with hitex LPC3250 usb stick.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
This commit is contained in:
richard vegh
2010-03-16 10:46:41 +01:00
committed by Øyvind Harboe
parent f85ad1e52a
commit ab5f98edcd
2 changed files with 441 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
src/flash/nand/lpc3180.h
View File

@@ -32,6 +32,7 @@ struct lpc3180_nand_controller
struct target *target;
int osc_freq;
enum lpc3180_selected_controller selected_controller;
int is_bulk;
int sw_write_protection;
uint32_t sw_wp_lower_bound;
uint32_t sw_wp_upper_bound;