From: Sinthu Raja <sinthu.raja@xxxxxx> Two carveout reserved memory nodes each have been added for each of the other remote processors devices within the MAIN domain on the TI J721E 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 devices, and the second region will furnish the static carveout regions for the firmware memory. An additional reserved memory node is also added to reserve a portion of the DDR memory to be used for performing inter-processor communication between all the remote processors running RTOS or baremetal firmwares. 8 MB of memory is reserved for this purpose, and this accounts for all the vrings and vring buffers between all the possible pairs of remote processors. The current carveout addresses and sizes are defined statically for each rproc device. The R5F processors do not have an MMU, and as such require the exact memory used by the firmwares to be set-aside. The C71x DSP processor does support a MMU called CMMU, but is not currently supported and as such requires the exact memory used by the firmware to be set-aside. The firmware images do not require any RSC_CARVEOUT entries in their resource tables to allocate the memory for firmware memory segments Signed-off-by: Sinthu Raja <sinthu.raja@xxxxxx> --- The following new warnings are introduced. Please refer to the ongoing discussion [1] arch/arm64/boot/dts/ti/k3-j721e-sk.dt.yaml:0:0: /reserved-memory/r5f-dma-memory@a0000000: failed to match any schema with compatible: ['shared-dma-pool'] arch/arm64/boot/dts/ti/k3-j721e-sk.dt.yaml:0:0: /reserved-memory/r5f-memory@a0100000: failed to match any schema with compatible: ['shared-dma-pool'] arch/arm64/boot/dts/ti/k3-j721e-sk.dt.yaml:0:0: /reserved-memory/r5f-dma-memory@a1000000: failed to match any schema with compatible: ['shared-dma-pool'] arch/arm64/boot/dts/ti/k3-j721e-sk.dt.yaml:0:0: /reserved-memory/r5f-memory@a1100000: failed to match any schema with compatible: ['shared-dma-pool'] arch/arm64/boot/dts/ti/k3-j721e-sk.dt.yaml:0:0: /reserved-memory/r5f-dma-memory@a2000000: failed to match any schema with compatible: ['shared-dma-pool'] [1] https://lore.kernel.org/linux-devicetree/20210423163234.3651547-2-thierry.reding@xxxxxxxxx/ arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 144 +++++++++++++++++++++++++ 1 file changed, 144 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts index 7816aa9b06f0..b726310d867c 100644 --- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts @@ -28,6 +28,132 @@ memory@80000000 { <0x00000008 0x80000000 0x00000000 0x80000000>; }; + reserved_memory: reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + secure_ddr: optee@9e800000 { + reg = <0x00 0x9e800000 0x00 0x01800000>; + alignment = <0x1000>; + no-map; + }; + + mcu_r5fss0_core0_dma_memory_region: r5f-dma-memory@a0000000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa0000000 0x00 0x100000>; + no-map; + }; + + mcu_r5fss0_core0_memory_region: r5f-memory@a0100000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa0100000 0x00 0xf00000>; + no-map; + }; + + mcu_r5fss0_core1_dma_memory_region: r5f-dma-memory@a1000000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa1000000 0x00 0x100000>; + no-map; + }; + + mcu_r5fss0_core1_memory_region: r5f-memory@a1100000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa1100000 0x00 0xf00000>; + no-map; + }; + + main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a2000000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa2000000 0x00 0x100000>; + no-map; + }; + + main_r5fss0_core0_memory_region: r5f-memory@a2100000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa2100000 0x00 0xf00000>; + no-map; + }; + + main_r5fss0_core1_dma_memory_region: r5f-dma-memory@a3000000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa3000000 0x00 0x100000>; + no-map; + }; + + main_r5fss0_core1_memory_region: r5f-memory@a3100000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa3100000 0x00 0xf00000>; + no-map; + }; + + main_r5fss1_core0_dma_memory_region: r5f-dma-memory@a4000000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa4000000 0x00 0x100000>; + no-map; + }; + + main_r5fss1_core0_memory_region: r5f-memory@a4100000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa4100000 0x00 0xf00000>; + no-map; + }; + + main_r5fss1_core1_dma_memory_region: r5f-dma-memory@a5000000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa5000000 0x00 0x100000>; + no-map; + }; + + main_r5fss1_core1_memory_region: r5f-memory@a5100000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa5100000 0x00 0xf00000>; + no-map; + }; + + c66_1_dma_memory_region: c66-dma-memory@a6000000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa6000000 0x00 0x100000>; + no-map; + }; + + c66_0_memory_region: c66-memory@a6100000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa6100000 0x00 0xf00000>; + no-map; + }; + + c66_0_dma_memory_region: c66-dma-memory@a7000000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa7000000 0x00 0x100000>; + no-map; + }; + + c66_1_memory_region: c66-memory@a7100000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa7100000 0x00 0xf00000>; + no-map; + }; + + c71_0_dma_memory_region: c71-dma-memory@a8000000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa8000000 0x00 0x100000>; + no-map; + }; + + c71_0_memory_region: c71-memory@a8100000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa8100000 0x00 0xf00000>; + no-map; + }; + + rtos_ipc_memory_region: ipc-memories@aa000000 { + reg = <0x00 0xaa000000 0x00 0x01c00000>; + alignment = <0x1000>; + no-map; + }; + }; + vusb_main: fixedregulator-vusb-main5v0 { /* USB MAIN INPUT 5V DC */ compatible = "regulator-fixed"; @@ -823,36 +949,54 @@ &mailbox0_cluster11 { &mcu_r5fss0_core0 { mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>; + memory-region = <&mcu_r5fss0_core0_dma_memory_region>, + <&mcu_r5fss0_core0_memory_region>; }; &mcu_r5fss0_core1 { mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>; + memory-region = <&mcu_r5fss0_core1_dma_memory_region>, + <&mcu_r5fss0_core1_memory_region>; }; &main_r5fss0_core0 { mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>; + memory-region = <&main_r5fss0_core0_dma_memory_region>, + <&main_r5fss0_core0_memory_region>; }; &main_r5fss0_core1 { mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>; + memory-region = <&main_r5fss0_core1_dma_memory_region>, + <&main_r5fss0_core1_memory_region>; }; &main_r5fss1_core0 { mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core0>; + memory-region = <&main_r5fss1_core0_dma_memory_region>, + <&main_r5fss1_core0_memory_region>; }; &main_r5fss1_core1 { mboxes = <&mailbox0_cluster2 &mbox_main_r5fss1_core1>; + memory-region = <&main_r5fss1_core1_dma_memory_region>, + <&main_r5fss1_core1_memory_region>; }; &c66_0 { mboxes = <&mailbox0_cluster3 &mbox_c66_0>; + memory-region = <&c66_0_dma_memory_region>, + <&c66_0_memory_region>; }; &c66_1 { mboxes = <&mailbox0_cluster3 &mbox_c66_1>; + memory-region = <&c66_1_dma_memory_region>, + <&c66_1_memory_region>; }; &c71_0 { mboxes = <&mailbox0_cluster4 &mbox_c71_0>; + memory-region = <&c71_0_dma_memory_region>, + <&c71_0_memory_region>; }; -- 2.31.1
