Re: [PATCH v4 7/9] arm64: dts : ti: k3-am68-sk-som: Add DDR carveout memory nodes for C71x DSP

From: Kumar, Udit
Date: Wed Sep 27 2023 - 11:22:21 EST



On 9/6/2023 4:54 PM, Apurva Nandan wrote:
Two carveout reserved memory nodes each have been added for each of the
C71x DSP for the TI K3 AM68 SK boards. These nodes are assigned to the
respective rproc device nodes as well. The first region will be used as
the DMA pool for the rproc device, and the second region will furnish
the static carveout regions for the firmware memory.

The current carveout addresses and sizes are defined statically for each
device. The C71x DSP processor supports a MMU called CMMU, but is not
currently supported and as such requires the exact memory used by the
firmware to be set-aside.

Signed-off-by: Sinthu Raja <sinthu.raja@xxxxxx>
Signed-off-by: Apurva Nandan <a-nandan@xxxxxx>
---
arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi | 52 ++++++++++++++++++++++
1 file changed, 52 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
index beab405274ab..20861a0a46b0 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi
@@ -98,6 +98,30 @@ main_r5fss1_core1_memory_region: r5f-memory@a5100000 {
no-map;
};


Reviewed by: Udit Kumar<u-kumar1@xxxxxx>

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