.

NXP

.

.

.

.

.

.

.

You have received this notice because you registered and downloaded certain materials from NXP and provided your personal contact information at that time.

This customer information notification (CIN) has updated information and supersedes CIN 202005006I.

The Low-dropout (LDO) linear regulators, LDO1 and LDO2 output voltage on the ROHM PMICs BD71837, BD71840, BD71847 and BD71850 are incorrectly configured in the NXP supplied Linux BSP GA releases. This impacts certain i.MX 8M Mini and i.MX 8M Nano NXP reference designs and/or customer designs using the specific ROHM PMIC's.

Affected NXP Linux software BSP GA releases:

  • Linux LTS release L4.14.98_2.3.0
    Referenced by branch imx_4.14.90_2.3.0 with tag rel_imx_4.14.98_2.3.0
  • Linux LTS release L4.19.35_1.1.0
    Referenced by branch imx_4.19.35_1.1.0 with tag rel_imx_4.19.35_1.1.0
  • Linux LTS release L5.4.3_2.0.0
    Referenced by branch imx_5.4.3_2.0.0 with tag rel_imx_5.4.3_2.0.0

NXP recommends all impacted users to upgrade to the latest software version or applying the patches detailed below to prevent any damage to the SoC IO's and impact device reliability.

NXP Linux software branches that have the resolution:

  • Linux LTS release L4.14.98_2.3.0 referenced by the HEAD of the branch imx_4.14.90_2.3.0
  • Linux LTS release L4.19.35_1.1.0 referenced by the HEAD of the branch imx_4.19.35_1.1.0
  • Linux LTS release L5.4.3_2.0.0 referenced by the HEAD of the branch imx_5.4.3_2.0.0

Software patch details in the Code Aurora Forum (CAF):

For L4.14.98_2.3.0, the git log references are:

  • MLK-23275-1: ARM64: dts: freescale: fsl-imx8mm-evk: correct ldo1/ldo2 voltage
  • MLK-23275-2: ARM64: dts: freescale: fsl-imx8mn-ddr4-evk: correct ldo1/ldo2 voltage
  • MLK-23275-3: regulator: bd71837: correct ldo1/ldo2 group

For L4.19.35_1.1.0, the git log references are:

  • MLK-23275-1: ARM64: dts: freescale: fsl-imx8mm-evk: correct ldo1/ldo2 voltage
  • MLK-23275-2: ARM64: dts: freescale: fsl-imx8mn-ddr4-evk: correct ldo1/ldo2 voltage
  • MLK-23275-3: regulator: bd71837: correct ldo1/ldo2 group

For L5.4.3_2.0.0, the git log references are:

  • MLK-23275-1: ARM64: dts: freescale: fsl-imx8mm-evk: correct ldo1/ldo2 voltage
  • MLK-23275-2: ARM64: dts: freescale: fsl-imx8mn-ddr4-evk: correct ldo1/ldo2 voltage
  • MLK-23844-1: ARM64: dts: freescale: imx8mn-ddr4-evk: cleanup Rhom pmic
  • MLK-23844-2: ARM64: dts: freescale: imx8mm: correct @VDDARM@1.6GHz
  • @

Affected part numbers:

MIMX8MN6CVTHZAA, MIMX8MM1DVTLZAA, MIMX8MM2DVTLZAA, MIMX8MM3DVTLZAA, MIMX8MM4DVTLZAA, MIMX8MM5DVTLZAA, MIMX8MM6DVTLZAAR, MIMX8MM6DVTLZAA, MIMX8MM1CVTKZAA, MIMX8MM2CVTKZAA, MIMX8MM3CVTKZAA, MIMX8MM4CVTKZAA, MIMX8MM5CVTKZAA, MIMX8MM6CVTKZAA, MIMX8MM5DVTLZBA, MIMX8MM5DVTLZCA, MIMX8MM5DVTLZDA, MIMX8MM5DVTLZEA, MIMX8MN1DVTJZAA, MIMX8MN3DVTJZAA,MIMX8MN4DVTJZAA, MIMX8MN5DVTJZAA, MIMX8MN6DVTJZAA, MIMX8MN2DVTJZAA, MIMX8MN6DVTJZCA, MIMX8MN6DVTJZDA, MIMX8MN1CVTIZAA, MIMX8MN2CVTIZAAR, MIMX8MN2CVTIZAA, MIMX8MN3CVTIZAA, MIMX8MN4CVTIZAA, MIMX8MN5CVTIZAA, MIMX8MN6CVTIZAA, MIMX8MN1CVTHZAA, MIMX8MN2CVTHZAA, MIMX8MN3CVTHZAA, MIMX8MN4CVTHZAA, MIMX8MN5CVTHZAA, 8MMINID4-EVK, 8MNANOD4-EVK, 8MMINILPD4-EVK

The patches mentioned above have been upstreamed and are part of i.MX Linux Board Support Package (BSP). Find the most up-to-date releases here:

.

Download Now »

.

For specific questions on this notice or the products affected please contact our specialists directly:
www.nxp.com/support.

.

NXP

.