The status register is optional in the AMD command sets, but it's
presence can be checked by reading out CFI table entry 0xc bit 0.
If the register is present, prefer using it's bit 7 to determine
if the flash is busy over reading the flash ; this is needed ie.
on Hyperflash memories.
Change-Id: If82e42e5320123ef0cf5b436e4f6f0d68393f2b3
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
(cherry picked from commit 72443c7f7d2174903e73ee88dcb4364e0387bbb2)
cae74a6a1b