Re: [PATCH 22/26] imx8m: ddr: Disable CA VREF Training for LPDDR4

2021-03-25 Thread Peng Fan (OSS)
On 2021/3/25 16:14, Stefano Babic wrote: Hi Tim, On 24.03.21 22:25, Tim Harvey wrote: On Fri, Mar 19, 2021 at 12:31 AM Peng Fan (OSS) wrote: From: Ye Li Users reported LPDDR4 MR12 value is set to 0 during PHY training, not the value from FSP timing structure, which cause compliance test

Re: [PATCH 22/26] imx8m: ddr: Disable CA VREF Training for LPDDR4

2021-03-25 Thread Stefano Babic
Hi Tim, On 24.03.21 22:25, Tim Harvey wrote: On Fri, Mar 19, 2021 at 12:31 AM Peng Fan (OSS) wrote: From: Ye Li Users reported LPDDR4 MR12 value is set to 0 during PHY training, not the value from FSP timing structure, which cause compliance test failed. The root cause is the CATrainOpt[0]

Re: [PATCH 22/26] imx8m: ddr: Disable CA VREF Training for LPDDR4

2021-03-24 Thread Tim Harvey
On Fri, Mar 19, 2021 at 12:31 AM Peng Fan (OSS) wrote: > > From: Ye Li > > Users reported LPDDR4 MR12 value is set to 0 during PHY training, > not the value from FSP timing structure, which cause compliance test failed. > The root cause is the CATrainOpt[0] is set to 1 in 2D FSP timing > but not

[PATCH 22/26] imx8m: ddr: Disable CA VREF Training for LPDDR4

2021-03-19 Thread Peng Fan (OSS)
From: Ye Li Users reported LPDDR4 MR12 value is set to 0 during PHY training, not the value from FSP timing structure, which cause compliance test failed. The root cause is the CATrainOpt[0] is set to 1 in 2D FSP timing but not set in 1D. According to PHY training application node, to enable the