Hi, On 04.01.23 06:23, Johannes Schneider wrote: > current(?) imx8mm EVKs come with a different PMIC: used to be "rohm,bd71847", which is now replaced by "nxp,pca9450a" on the LPDDR4 variant at least So you have a LPDDR4 EVK. > the register settings etc where "backported" from current u-boot sources for the EVK > > Note: not sure if the changes should go in the ddr4-evk.dts or elsewhere; Why change the DDR4 EVK's device tree? > what about backwards compatibility? = users/holders of the EVKs with the bd71847 IC? It's a new device, so give it a new device tree and a new DT compatible. Thanks, Ahmad > > > Johannes Schneider (1): > arm64: dts: imx8mm: set PCA9450a as PMIC > > .../boot/dts/freescale/imx8mm-ddr4-evk.dts | 124 ++++++++++++++++++ > 1 file changed, 124 insertions(+) > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
