DRA821U-Q1: How to enable GPMC to access fpga in uboot for SDK 9.02

Yuhe Tang

Part Number: DRA821U-Q1
Other Parts Discussed in Thread: DRA821

Tool/software:

We need to access some fpga registers in uboot, fpga is connect via GPMC interface.

Could you please share how to enable GPMC to access fpga in uboot for SDK 9.02. Does SDK 9.02 support GPMC in uboot for DRA821?

Thanks!

0 Keerthy J 4 months ago

Hi,

There is no support for GPMC for DRA821 SoC on any of the version of the Linux SDK.

- Keerthy

0 Yuhe Tang 4 months ago in reply to Keerthy J

Does this mean there's no driver for GPMC for DRA821 in uboot? Or there's driver in it, we just need update dts to enable it?

+1 Keerthy J 4 months ago in reply to Yuhe Tang

Hi,

Driver exists and there are examples on other SoCs.

On our evm we don't have an interface to test it and hence we haven't enabled it by default in the SDK.

Reference:

arch/arm64/boot/dts/ti/k3-am62-main.dtsi

arch/arm64/boot/dts/ti/k3-am62-lp-sk-nand.dtso

Closing this thread

Best Regards,

Keerthy

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