Neeraj Dantu

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  • in reply to: Linux Kirkstone 5.15 #14557
    Neeraj Kumar Reddy DantuNeeraj Dantu
    Moderator

      Gil,

      The patches that Octavo applies are for BRK an RED board. If your board is based on these boards, you will need the patches. If not, the 2 patches you need are the DDR parameters(for u-boot: stm32mp15-osd32mp1-ddr3-1x4Gb.dtsi or stm32mp15-osd32mp1-ddr3-2x4Gb.dtsi) for the specific DDR in use and https://github.com/octavosystems/meta-octavo-osd32mp1/blob/dunfell/recipes-bsp/u-boot/files/0009-Fix-device-tree-for-800MHz-speedgrade-MP1-to-work-wi.patch to add support for “F” variant devices to run on 650MHz.

      For the custom board device tree, I recommend taking a look at BRK device tree to understand what you need to port to your custom device tree. For example, OSD32MP1 uses STPMIC1 and so, STPMIC1 related configuration in the device tree is needed for any OSD32MP1 based board.

      All the Octavo patch files do not modify kernel source code. They add device tree source files for the supported boards. So, there should not be any issues with using .24 patches with .67 kernel version.

      Best,

      Neeraj

      in reply to: Flashing eMMC #14546
      Neeraj Kumar Reddy DantuNeeraj Dantu
      Moderator

        maynarde,

        Yes, you should be able to modify uEnv.txt to flash the eMMC from SD card.

        Best,

        Neeraj

        in reply to: Linux Kirkstone 5.15 #14545
        Neeraj Kumar Reddy DantuNeeraj Dantu
        Moderator

          Gil,

          You are correct, it looks like 1 of the patches from ST failed to apply because the file it was modifying was too different. The patch that is failing is from ST. You will need to resolve the error by reviewing the code being modified by the patch and making sure the modification applied by the patch is still valid and will function correctly.

          An easier way probably would be to pull the kernel source from ST’s repository here: https://github.com/STMicroelectronics/linux/tree/v5.15-stm32mp-r2 (This code has all the ST patches already applied).

          If you need granular control of the kernel source code, I suggest you look at https://wiki.st.com/stm32mpu-ecosystem-v4/wiki/OpenEmbedded_-_devtool to export the kernel code into its own workspace and make modifications/resolve conflicts in the source code.

          Best,

          Neeraj

          in reply to: Linux Kirkstone 5.15 #14527
          Neeraj Kumar Reddy DantuNeeraj Dantu
          Moderator

            Gil,

            You should be able to use the kirkstone patches with 5.15.67. There are not any kernel level modifications that would affect the compilation.

            Best,

            Neeraj

            in reply to: Ethernet PHY with OSD32MP1-BRK #14348
            Neeraj Kumar Reddy DantuNeeraj Dantu
            Moderator

              Ray,

              Since the only option for MII_COL is either PA3 or PH3, it won’t be possible to add 10/100 Ethernet to the BRK. However, RGMII configuration is possible.

              Best,

              Neeraj

               

              Adding the RGMII configuration pins:

              PD24 — ETH1_MDIO

              PC24 — ETH1_MDC

              PD22 — ETH1_RX_DV

              PC20 — ETH1_RX_CLK

              PC21 — ETH1_RXD0

              PC19 — ETH1_RXD1

              PD21 — ETH1_RDX2

              PC11 — ETH1_RXD3

              PD10 — ETH1_TX_EN

              PC06 — ETH1_TX_CLK

              PC07 — ETH1_TXD0

              PD08 — ETH1_TXD1

              PD14 — ETH1_TXD2

              PD07 — ETH1_TXD3

               

              in reply to: QSPI not detected in U-Boot #14294
              Neeraj Kumar Reddy DantuNeeraj Dantu
              Moderator

                FLeblanc,

                For ES parts, QSPI boot is not supported as it is a NAND SPI that Xilinx does not support. That is why you are seeing “unrecognized JEDEC id bytes”. Production parts have QSPI that is supported in Xilinx ecosystem. Please check the datasheet for the version you need as there is a 1.8V part(-xFA) and 3.3V QSPI part(-xFB).

                Best,

                Neeraj

                in reply to: SD card fails for Kernel (error -110), but works in uboot #14293
                Neeraj Kumar Reddy DantuNeeraj Dantu
                Moderator

                  Thomas,

                  Can you look at the power consumption of your custom board compared to PocketBeagle? My suspicion is that something getting initialized during kernel boot is drawing too much power from IO may be because of a conflict with the pin definition with Pocketbeagle.

                  Can you probe the levels of CLK/CMD and DATA when kernel is booting to see what IO levels they are?

                  Best,

                  Neeraj

                  in reply to: eMMC Data sheet/Wear leveling #14290
                  Neeraj Kumar Reddy DantuNeeraj Dantu
                  Moderator

                    Ryan,

                    Please contact sales(at)octavosystems.com for additional information on this.

                    Best,

                    Neeraj

                    in reply to: eMMC Data sheet/Wear leveling #14271
                    Neeraj Kumar Reddy DantuNeeraj Dantu
                    Moderator

                      Ryan,

                      The eMMC inside OSD335x C-SiP implements wear-leveling. Specifically, we ensure that the eMMC is compliant to eMMC JEDEC v4.3 or higher.

                      Best,

                      Neeraj

                      in reply to: SD card fails for Kernel (error -110), but works in uboot #14270
                      Neeraj Kumar Reddy DantuNeeraj Dantu
                      Moderator

                        Thomas,

                        The data lines need to be pulled up to 3.3V on the MMC interface like in the Pocketbeagle for the interface to work. Do you have the pull-ups? It looks like the Pocketbeagle device tree enables the internal pull-ups on these pins: https://openbeagle.org/beagleboard/BeagleBoard-DeviceTrees/-/blob/v5.10.x-ti-unified/src/arm/am335x-pocketbeagle.dts#L238.

                        Can you also check voltage for VDDSHVx(SYS_VDD3_3P3V)?

                        Best,

                        Neeraj

                        in reply to: SD card fails for Kernel (error -110), but works in uboot #14246
                        Neeraj Kumar Reddy DantuNeeraj Dantu
                        Moderator

                          Thomas,

                          Looking at the boot log:

                          [    1.818009] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 200000 microseconds (-22)

                          [    1.826827] omap_hsmmc 48060000.mmc: Got CD GPIO

                          [    1.832087] omap_hsmmc 48060000.mmc: Linked as a consumer to regulator.1

                           

                          It looks like the driver is running into an error setting up the card detect GPIO. Here is the GPIO bank corresponding to the driver error: https://github.com/beagleboard/devicetree-source/blob/master/arch/arm/boot/dts/am33xx.dtsi#L155. You can deduce from the datasheet(https://www.ti.com/lit/ds/symlink/am3356.pdf) that SPI0_CS1 is GPIO0_6.

                          You mentioned that the voltage on card detect pin is not 3.3V. Is there any other circuit on this pin that could effect it?

                          If you have more than 1 board, please try other boards in case this is a 1 off error.

                          Best,

                          Neeraj

                          in reply to: SD card fails for Kernel (error -110), but works in uboot #14243
                          Neeraj Kumar Reddy DantuNeeraj Dantu
                          Moderator

                            Thomas,

                            Can you check the polarity and connection for MMC0_CD(card detect pin) of the SD card interface on your custom board? I suspect the SD card detect signal is either not hooked up the same as Pocketbeagle or the polarity is reversed. See https://github.com/beagleboard/pocketbeagle/blob/master/PocketBeagle_sch.pdf for the configuration of MMC0_CD in Pocketbeagle.

                            Check the pin and polarity of card detect pin(‘cd-gpios’) defined in the device tree here: https://openbeagle.org/beagleboard/BeagleBoard-DeviceTrees/-/blob/v5.10.x-ti-unified/src/arm/am335x-pocketbeagle.dts#L799.

                            Best,

                            Neeraj

                            in reply to: critical temperature reached (120 C) #14165
                            Neeraj Kumar Reddy DantuNeeraj Dantu
                            Moderator

                              Eric,

                              Does this happen at random or all the time?

                              Is there additional circuitry connected to the BRK that is consuming current from the PMIC rails?

                              What is the environment temperature? Are you using an enclosure?

                              What is the current consumption of the board?

                              Best,

                              Neeraj

                              in reply to: Entering deep sleep causes a reset #14037
                              Neeraj Kumar Reddy DantuNeeraj Dantu
                              Moderator

                                asd,

                                It seems like you found a hardware bug on the RED board. I was able to figure out the root cause after a chat with ST’s Engineer:

                                TF-A is accurate when reporting the boot reason.

                                This meant that NRST was being pulled LOW by another component. eMMC is the only device that has it’s RESET pin tied to NRST and it is powered by BUCK4. This is probably why if you have BUCK4 ON, you are not seeing the faulty behavior.

                                Once I disconnected eMMC’s RESET from NRST by cutting the trace, I was able to get the RED board into STANDBY without issue.

                                I was seeing variability in behavior before because I was using SD card interface to boot instead of eMMC. I suggest you use the SD card boot to work with low power modes that turn off BUCK4. I will add an issue to the design team to fix the hardware issue in the next revision.

                                Best,

                                Neeraj

                                in reply to: Entering deep sleep causes a reset #14035
                                Neeraj Kumar Reddy DantuNeeraj Dantu
                                Moderator

                                  asd,

                                  Verified this behavior on RED v1.2. I will put in an issue with the software team. I suspect that it is a RED specific Debian service(weston?) that is preventing a proper enter into low power state. Please use the OpenSTLinux version to implement the deep sleep state for now. Will update here once I get an update.

                                  Best,

                                  Neeraj

                                Viewing 15 posts - 31 through 45 (of 558 total)