Hi Heiko On Mon, 2021-10-18 at 11:23 +0200, Heiko Thiery wrote: > Hi all, > > I see that in the NXP firmware-imx package different versions of the > LPDDR4 train firmware is included but I cannot find a Release Note or > something else that describes the differences. Does anyone know what > is the correct version to be used?
Doesn't it depend on which generation of MScale one is using? Anyway, from NXP's user guide [1]: For i.MX 8M Quad and i.MX 8M Mini LPDDR4 EVK, copy lpddr4_pmu_train_1d_dmem.bin, lpddr4_pmu_train_1d_imem.bin, lpddr4_pmu_train_2d_dmem.bin, and lpddr4_pmu_train_2d_imem.bin from firmware/ddr/synopsys of firmware-imx package to imx-mkimage/iMX8M/. For i.MX 8M Mini DDR4 EVK, copy ddr4_imem_1d.bin, ddr4_dmem_1d.bin, ddr4_imem_2d.bin, and ddr4_dmem_2d.bin from firmware/ddr/synopsys of firmware-imx package to imx-mkimage/iMX8M. For i.MX 8M Plus LPDDR4 EVK, copy lpddr4_pmu_train_1d_dmem_201904.bin, lpddr4_pmu_train_1d_imem_201904.bin, lpddr4_pmu_train_2d_dmem_201904.bin, and lpddr4_pmu_train_2d_imem_201904.bin from firmware/ddr/synopsys of firmware-imx package to imx-mkimage/iMX8M/. So their latest documentation does not even mention the later firmware available! > Here is the content of the latest NXP release: > lpddr4_pmu_train_1d_dmem_201904.bin > lpddr4_pmu_train_1d_dmem_202006.bin > lpddr4_pmu_train_1d_dmem.bin > lpddr4_pmu_train_1d_imem_201904.bin > lpddr4_pmu_train_1d_imem_202006.bin > lpddr4_pmu_train_1d_imem.bin > lpddr4_pmu_train_2d_dmem_201904.bin > lpddr4_pmu_train_2d_dmem_202006.bin > lpddr4_pmu_train_2d_dmem.bin > lpddr4_pmu_train_2d_imem_201904.bin > lpddr4_pmu_train_2d_imem_202006.bin > lpddr4_pmu_train_2d_imem.bin [1] https://www.nxp.com/docs/en/user-guide/IMX_LINUX_USERS_GUIDE.pdf > Thanks Cheers Marcel
