On 02.12.2017 10:15, Marek Vasut wrote:
On 11/18/2017 08:09 PM, York Sun wrote:
Commit 72443c7f7d21 ("mtd: cfi: Add support for status register
polling") added a feature check to determine if status register
is available for certain flash chips. The "lower software bits"
register used to determine this feature is not backward compati-
ble. Older flash chips without this feature has reserved value
0xff. Instead of checking "lower software bits" register, use
CFI primary vendor-specific extended query. Since CFI version
1.4, software features can be read from offset 0x53 according to
document AN201168 from Cypress.
Signed-off-by: York Sun <york....@nxp.com>
CC: Marek Vasut <marek.va...@gmail.com>
On R8A7796 M3 ULCB
Tested-by: Marek Vasut <marek.va...@gmail.com>
Applied to u-boot-cfi-flash/master.
Thanks,
Stefan
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