Hi Vignesh/Manorit,
Thanks for the patch. BCDMA regions don't seem to match the TRM for
AM65, can you recheck?
On Dec 12, 2023 at 16:46:32 +0530, Vignesh Raghavendra wrote:
> From: Manorit Chawdhry <m-chawdhry@xxxxxx>
>
> Add additional reg properties for UDMA and RingAcc nodes which are
> mostly used by bootloader components before Device Manager firmware
> services are available, in order to setup DMA transfers.
>
> Signed-off-by: Manorit Chawdhry <m-chawdhry@xxxxxx>
> Signed-off-by: Vignesh Raghavendra <vigneshr@xxxxxx>
> ---
> arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 8 ++++++--
> arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi | 8 ++++++--
> 2 files changed, 12 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> index 5ebb87f467de..2033a8ec89d6 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> @@ -790,8 +790,12 @@ main_udmap: dma-controller@31150000 {
> compatible = "ti,am654-navss-main-udmap";
> reg = <0x0 0x31150000 0x0 0x100>,
> <0x0 0x34000000 0x0 0x100000>,
> - <0x0 0x35000000 0x0 0x100000>;
> - reg-names = "gcfg", "rchanrt", "tchanrt";
> + <0x0 0x35000000 0x0 0x100000>,
> + <0x0 0x30b00000 0x0 0x20000>,
AM65 TRM mentions TCHAN region size as 0x10000 in the memory map. Can
you confirm if this is correct and send a v2 if not?
> + <0x0 0x30c00000 0x0 0x8000>,
Same here, TRM says size is 0x10000.
> + <0x0 0x30d00000 0x0 0x4000>;
Same here, TRM says size is 0x8000.
> + reg-names = "gcfg", "rchanrt", "tchanrt",
> + "tchan", "rchan", "rflow";
> msi-parent = <&inta_main_udmass>;
> #dma-cells = <1>;
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
> index edd5cfbec40e..ecd7356f3315 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
> @@ -214,8 +214,12 @@ mcu_udmap: dma-controller@285c0000 {
> compatible = "ti,am654-navss-mcu-udmap";
> reg = <0x0 0x285c0000 0x0 0x100>,
> <0x0 0x2a800000 0x0 0x40000>,
> - <0x0 0x2aa00000 0x0 0x40000>;
> - reg-names = "gcfg", "rchanrt", "tchanrt";
> + <0x0 0x2aa00000 0x0 0x40000>,
> + <0x0 0x284a0000 0x0 0x4000>,
> + <0x0 0x284c0000 0x0 0x4000>,
> + <0x0 0x28400000 0x0 0x2000>;
These look okay.
> + reg-names = "gcfg", "rchanrt", "tchanrt",
> + "tchan", "rchan", "rflow";
> msi-parent = <&inta_main_udmass>;
> #dma-cells = <1>;
>
> --
> 2.43.0
>
>
--
Thanks,
Jai
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