Nadim Taha bfd1aba3cb common/spi_nor: Adds RDID and 64KiB erase support ...

Modified the SPI NOR flash driver to implement
and expose a read JEDEC ID command as well as
support block (64KiB) erase operations.

BUG=None
BRANCH=None
TEST=Built all targets. Tested on two different EEPROMs.

Before:
-------------------------------------------
$ ~/haven_updater$ ./read_jedec_ftdi
[+] JEDEC_ID=0x1940ef
$ ~/haven_updater$ time ./chip_erase_ftdi
[+] Success!

real	4m0.440s
user	0m6.674s
sys	0m11.998s
-------------------------------------------
$ ~/haven_updater$ ./read_jedec_ftdi
[+] JEDEC_ID=0xc21a20c2
$ ~/haven_updater$ time ./chip_erase_ftdi
[+] Success!

real	5m57.291s
user	0m9.964s
sys	0m18.363s
-------------------------------------------

After:
-------------------------------------------
$ ~/haven_updater$ ./read_jedec_ftdi
[+] JEDEC_ID=0x1940ef
$ ~/haven_updater$ time ./chip_erase_ftdi
[+] Success!

real	1m33.176s
user	0m2.327s
sys	0m5.050s
-------------------------------------------
$ ~/haven_updater$ ./read_jedec_ftdi
[+] JEDEC_ID=0xc21a20c2
$ ~/haven_updater$ time ./chip_erase_ftdi
[+] Success!

real	2m41.923s
user	0m4.191s
sys	0m8.576s
-------------------------------------------

Change-Id: Ic20372ca9966499977a52a700d6492d3f648d7b2
Signed-off-by: Nadim Taha <ntaha@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/416903
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>

2016-12-07 23:45:29 +00:00

6.9 KiB

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