I am working with ls1021a, which is having NOR(IS29GL256) flash connected via IFC bus, I want to read the device ID, is their any command or other way to read the register(device ID) in u-boot, please suggest me to get this.
Regards
Winston.
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Thanks for your immediate reply, @ufedor that is working properly in LS1021ATWR board.
Regards
Winston
For 16-bit NOR Flash it is possible to use the following sequence of U-Boot commands to read Device ID (example is for the JS28F00 and the IFC Flash chip-select base address 0xe8000000):
=> mw.w e8000AAA aa;mw.w e8000554 55; mw.w e8000AAA 90;md.w e8000002 1;md.w e800001c 1;md.w e800001e 1
e8000002: 227e "~
e800001c: 2228 "(
e800001e: 2201 ".
=>
Thanks for your reply @ufedor,
I tried with the same command for my EVK (LS1021ATWR) board, I am getting on FFFF and here my NOR flash is MT28EW01GABA.
=> mw.w 60000554 aa;mw.w 600002AA 55; mw.w 60000554 90;md.w 60000002 1;md.w 6000000e 1
60000002: ffff ..
6000000e: ffff ..
=>
I am not getting the proper result, so please help me to resolve this issue
Regards
Winston
On the TWR board:
=> mw.w 60000AAA aa00;mw.w 60000554 5500; mw.w 60000AAA 9000;md.w 60000002 1;md.w 6000001c 1;md.w 6000001e 1
60000002: 7e22 "~
6000001c: 2822 "(
6000001e: 0122 ".
Thanks for your immediate reply, @ufedor that is working properly in LS1021ATWR board.
Regards
Winston