On Wed, Jun 13, 2018 at 1:49 AM Christian Hemp <c.hemp@xxxxxxxxx> wrote: > > Hello Andrey, > > ... > On Dienstag, 12. Juni 2018 13:53:09 CEST Andrey Smirnov wrote: > > diff --git a/Documentation/boards/imx/nxp-imx8mq-evk.rst > > b/Documentation/boards/imx/nxp-imx8mq-evk.rst new file mode 100644 > > index 000000000..2bc94e790 > > --- /dev/null > > +++ b/Documentation/boards/imx/nxp-imx8mq-evk.rst > > @@ -0,0 +1,116 @@ > > +NXP i.MX8MQ EVK Evaluation Board > > +================================ > > + > > +Board comes with: > > + > > +* 3GiB of LPDDR4 RAM > > +* 16GiB eMMC > > + > > +Not including booting via serial, the device can boot from either SD or > > eMMC. + > > +Downloading DDR PHY Firmware > > +---------------------------- > > + > > +As a part of DDR intialization routine NXP i.MX8MQ EVK requires and > > +uses several binary firmware blobs that are distributed under a > > +separate EULA and cannot be included in Barebox. In order to obtain > > +the do the following:: > > + > > + wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-7.2.bin > > + chmod +x firmware-imx-7.2.bin > > + ./firmware-imx-7.2.bin > > + > > +Executing that file should produce a EULA acceptance dialog as well as > > +result in the following files: > > + > > +- lpddr4_pmu_train_1d_dmem.bin > > +- lpddr4_pmu_train_1d_imem.bin > > +- lpddr4_pmu_train_2d_dmem.bin > > +- lpddr4_pmu_train_2d_imem.bin > > + > > +As a last step of this process those files need to be placed in > > +"firmware/imx/":: > > + > > + for f in lpddr4_pmu_train_1d_dmem.bin \ > > + lpddr4_pmu_train_1d_imem.bin \ > > + lpddr4_pmu_train_2d_dmem.bin \ > > + lpddr4_pmu_train_2d_imem.bin; \ > > + do \ > > + cp firmware-imx-7.2/firmware/ddr/synopsys/${f} \ > > + firmware/imx/${f}; \ > > + done > > + > > +DDR Configuration Code > > +====================== > > + > > +The following two files: > > + > > + - ddr_init.c > > + - ddrphy_train.c > > + > > +were obtained by running i.MX 8M DDR Tool that can be found here: > > + > > +https://community.nxp.com/docs/DOC-340179 > > + > > +Only minimal amount of necessary changes were made to those files. > > +All of the "impedance matching" code is located in "ddr.h". > > + > > +Build Barebox > > +============= > > + > > + make imv_v8_defconfig > > s/imv_v8_defconfig/imx_v8_defconfig/g > Will fix in v6. Thanks, Andrey Smirnov _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
