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TDA4VH-Q1: Unable to boot from OSPI flash

Milos Reljin
Prodigy 50 points

Part Number: TDA4VH-Q1
Other Parts Discussed in Thread: TDA4VH

Tool/software:

Hello everyone,

I'm trying to get OSPI boot mode to work on custom board based on TDA4VH. I'm able to transfer boot files into board RAM over TFTP in u-boot and write those to OSPI flash with these commands:

sf probe
tftp ${loadaddr} tiboot3.bin
sf update $loadaddr 0x0 $filesize
tftp ${loadaddr} tispl.bin
sf update $loadaddr 0x80000 $filesize
tftp ${loadaddr} u-boot.img
sf update $loadaddr 0x280000 $filesize


Then I set the boot mode switches on board to boot from OSPI but on startup, the last print on UART is:

"Trying to boot from SPI"

and nothing after that. So it seems like flash is working since I can write to it, but for some reason board is unable to boot from it. Any ideas what could be the problem?

  • 0
    TI__Mastermind 43890 points

    Hi,

    What is the flash part you are using?

    Can you share the u-boot logs.

    Can you also try with phy_tuning_pattern also flashed to the phy.

    Regards,
    Tanmay

  • +1 in reply to Tanmay Patil
    Prodigy 50 points

    Hi,

    I figured it out. I had to make some changes to the DTS since custom board uses Micron flash which is different from the one on J784S4 EVM board:

    diff --git a/arch/arm/dts/k3-j784s4-evm.dts b/arch/arm/dts/k3-j784s4-evm.dts
index 3d7e6035..bd595300 100644
--- a/arch/arm/dts/k3-j784s4-evm.dts
+++ b/arch/arm/dts/k3-j784s4-evm.dts
@@ -1021,7 +1021,7 @@
                cdns,tsd2d-ns = <60>;
                cdns,tchsh-ns = <60>;
                cdns,tslch-ns = <60>;
-               cdns,read-delay = <4>;
+               cdns,read-delay = <0>;

                partitions {
                        compatible = "fixed-partitions";
@@ -1058,10 +1058,10 @@
                                reg = <0x800000 0x37c0000>;
                        };

-                       partition@3fc0000 {
+                       partition@3fe0000 {
                                bootph-all;
                                label = "ospi.phypattern";
-                               reg = <0x3fc0000 0x40000>;
+                               reg = <0x3fe0000 0x20000>;
                        };
                };
        };