| commit | 548cc1095f290a0787476d61de32213a9195ff7b | [log] [tgz] |
|---|---|---|
| author | Lukasz Majewski <lukma@denx.de> | Wed Dec 05 17:04:02 2018 +0100 |
| committer | Stefano Babic <sbabic@denx.de> | Fri Feb 15 12:16:50 2019 +0100 |
| tree | c6734207c165bd38a469537247052df67c5c73fa | |
| parent | c5b22a5360662597511bebf95058c9dc777ee788 [diff] |
ddr: vybrid: Provide code to perform on-boot calibration This patch provides the code to calibrate the DDR's DQS to DQ signals (RDLVL). It is based on: VFxxx Controller Reference Manual, Rev. 0, 10/2016, page 1600 10.1.6.16.4.1 "Software Read Leveling in MC Evaluation Mode" and NXP's community thread: "Vybrid: About DDR leveling feature on DDRMC." https://community.nxp.com/thread/395323 Signed-off-by: Lukasz Majewski <lukma@denx.de>