bios/sdram: improve write/read leveling
authorFlorent Kermarrec <florent@enjoy-digital.fr>
Wed, 10 Oct 2018 08:42:56 +0000 (10:42 +0200)
committerFlorent Kermarrec <florent@enjoy-digital.fr>
Wed, 10 Oct 2018 08:42:56 +0000 (10:42 +0200)
commit915c2f417ad87389c4ac531603e1d7763397e214
treefd26fc27b10a69deceb62d844e38b28dde673819
parentdeffa60324666429d0ef6b607230b77682db310f
bios/sdram: improve write/read leveling

write_leveling: select last 0 to 1 transition.
read_leveling: do it by module (select best bitslip for each module)
litex/soc/software/bios/sdram.c