Hi Marcel,

Am Di., 19. Okt. 2021 um 11:47 Uhr schrieb Marcel Ziswiler marcel.ziswiler@toradex.com:

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/.

Ok, I didn't even notice that and I just wanted to make sure I was using the right ones here. Maybe someone can tell us the use case for the "*_202006.bin" files.

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

Thanks,

Heiko

On 2021/10/20 14:27, Marcel Ziswiler wrote:

On Tue, 2021-10-19 at 15:04 +0200, Heiko Thiery wrote:

...

Hi Marcel,

Am Di., 19. Okt. 2021 um 11:47 Uhr schrieb Marcel Ziswiler marcel.ziswiler@toradex.com:

...

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/.

Ok, I didn't even notice that and I just wanted to make sure I was using the right ones here. Maybe someone can tell us the use case for the "*_202006.bin" files.

Okay, I guess NXP uses it for their proprietary imx-mkimage stuff for the i.MX 8M Plus:

https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsource.cod...

But, as mentioned above, I could not find any official documentation not to mention release notes about any of this anywhere.

@NXP: Anybody mind telling us more about this?

Please use the one mentioned in imx-mkimage matching the release tag. The documentation was missed to be updated, thanks for pointing this out.

Thanks, Peng.

...

...

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://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.nxp.co...

...

Thanks

Cheers

Thanks,

Heiko