[PATCH 0/2] Enable IPU and DSP rprocs on AM5729 BeagleBone AI

[PATCH 0/2] Enable IPU and DSP rprocs on AM5729 BeagleBone AI

[Suman Anna]

Hi Tony, Jason, Caleb,

The IPU and DSP remote processors are finally booting as of latest master
on almost all the TI DRA7xx/AM57xx boards except for AM5729 BeagleBone AI
board. We have most of the common dts pieces available due to the usage
of common dra74-ipu-dsp.common.dtsi and dra7-ipu-dsp-common.dtsi files.
The series leverages these to enable both the IPUs (IPU1 and IPU2) and
DSPs (DSP1 and DSP2) on AM5729 BeagleBone AI board.

Patch 1 is enough to enable the support, and patch 2 is a cleanup.
Patches are based on latest master.

I don't have access to an BeagleBone AI board, so appreciate some testing
from any of you. If you are using the TI SDK firmware images, you would
need the following additional patch [1] to have the rpmsg devices published
successfully (otherwise you will see a malformed rpmsg ns message trace).
This patch is getting replaced with an alternate logic, and I am waiting
for that to be finalized before I update our BIOS-side logic/firmwares.

regards
Suman

[1] https://patchwork.kernel.org/patch/11096599/

Suman Anna (2):
  ARM: dts: am5729-beaglebone-ai: Enable IPU & DSP rprocs
  ARM: dts: am5729-beaglebone-ai: Disable ununsed mailboxes

 arch/arm/boot/dts/am5729-beagleboneai.dts | 73 +++++++----------------
 1 file changed, 21 insertions(+), 52 deletions(-)

-- 
2.26.0

[PATCH 1/2] ARM: dts: am5729-beaglebone-ai: Enable IPU & DSP rprocs

[Suman Anna]

Assign the previously added CMA reserved memory nodes to the respective
IPU and DSP rproc device nodes, and enable these rproc nodes so that
these remote processors can be booted on the AM5729 BeagleBone AI board.

The addresses and sizes of the CMA pools are identical to those used on
various other TI AM572x/AM574x based boards. The mailboxes, timers and
watchdog-timers for all these remoteprocs are inherited by including the
common dra72-ipu-dsp-common.dtsi file.

An associated pair of the rproc node and its CMA node can be disabled
later on if there is no use-case defined to use that remote processor.

Signed-off-by: Suman Anna <s-anna@ti.com>
---
 arch/arm/boot/dts/am5729-beagleboneai.dts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/am5729-beagleboneai.dts b/arch/arm/boot/dts/am5729-beagleboneai.dts
index 9877d7709d41..619e75927224 100644
--- a/arch/arm/boot/dts/am5729-beagleboneai.dts
+++ b/arch/arm/boot/dts/am5729-beagleboneai.dts
@@ -8,6 +8,7 @@
 #include "dra74x.dtsi"
 #include "am57xx-commercial-grade.dtsi"
 #include "dra74x-mmc-iodelay.dtsi"
+#include "dra74-ipu-dsp-common.dtsi"
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/pinctrl/dra.h>
@@ -729,3 +730,23 @@ opp_slow-500000000 {
 		opp-shared;
 	};
 };
+
+&ipu2 {
+	status = "okay";
+	memory-region = <&ipu2_memory_region>;
+};
+
+&ipu1 {
+	status = "okay";
+	memory-region = <&ipu1_memory_region>;
+};
+
+&dsp1 {
+	status = "okay";
+	memory-region = <&dsp1_memory_region>;
+};
+
+&dsp2 {
+	status = "okay";
+	memory-region = <&dsp2_memory_region>;
+};
-- 
2.26.0

[PATCH 2/2] ARM: dts: am5729-beaglebone-ai: Disable ununsed mailboxes

[Suman Anna]

The IPU and DSP remote processors use sub-mailbox nodes only from a
limited set of System Mailboxes 5 and 6 to achieve the Remote Processor
Messaging (RPMsg) communication stack between the MPU host processor
and the respective remote processor. These are all defined and enabled
through the inherited common dra74-ipu-dsp-common.dtsi file.

The other System Mailboxes do not define any actual sub-mailboxes, so
they serve no purpose and can all be safely dropped.

Signed-off-by: Suman Anna <s-anna@ti.com>
---
 arch/arm/boot/dts/am5729-beagleboneai.dts | 52 -----------------------
 1 file changed, 52 deletions(-)

diff --git a/arch/arm/boot/dts/am5729-beagleboneai.dts b/arch/arm/boot/dts/am5729-beagleboneai.dts
index 619e75927224..d3e345d6634a 100644
--- a/arch/arm/boot/dts/am5729-beagleboneai.dts
+++ b/arch/arm/boot/dts/am5729-beagleboneai.dts
@@ -630,58 +630,6 @@ &bandgap {
 	status = "okay";
 };
 
-&mailbox1 {
-	status = "okay";
-};
-
-&mailbox2 {
-	status = "okay";
-};
-
-&mailbox3 {
-	status = "okay";
-};
-
-&mailbox4 {
-	status = "okay";
-};
-
-&mailbox5 {
-	status = "okay";
-};
-
-&mailbox6 {
-	status = "okay";
-};
-
-&mailbox7 {
-	status = "okay";
-};
-
-&mailbox8 {
-	status = "okay";
-};
-
-&mailbox9 {
-	status = "okay";
-};
-
-&mailbox10 {
-	status = "okay";
-};
-
-&mailbox11 {
-	status = "okay";
-};
-
-&mailbox12 {
-	status = "okay";
-};
-
-&mailbox13 {
-	status = "okay";
-};
-
 &cpu_alert0 {
 	temperature = <55000>; /* milliCelsius */
 };
-- 
2.26.0

Re: [PATCH 0/2] Enable IPU and DSP rprocs on AM5729 BeagleBone AI

[Tony Lindgren]

* Suman Anna <s-anna@ti.com> [200611 08:30]:
> Hi Tony, Jason, Caleb,
> 
> The IPU and DSP remote processors are finally booting as of latest master
> on almost all the TI DRA7xx/AM57xx boards except for AM5729 BeagleBone AI
> board. We have most of the common dts pieces available due to the usage
> of common dra74-ipu-dsp.common.dtsi and dra7-ipu-dsp-common.dtsi files.
> The series leverages these to enable both the IPUs (IPU1 and IPU2) and
> DSPs (DSP1 and DSP2) on AM5729 BeagleBone AI board.

Thanks applying both into omap-for-v5.9/dt.

Tony