TDA4VL-Q1: TDA4VM/TDA4VL/TDA4AL/TDA4VH/DRA821: How can we make the Jacinto SDK 9.x compatible for device variants?

BSP: SDK 9.2

SoC: TDA4VL

Ref URL: https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1227640/faq-tda4vm-tda4vl-tda4al-tda4vh-dra821-how-can-we-make-the-jacinto-sdk-compatible-for-device-variants-yxz/4666783#4666783

Dear supporter,

    We are going to migrate SDK from 8.6 to 9.x on J721S2 (TDA4VL) by referring above information. Found out some portions on 9.x are gone. Should we ignore them while porting? Thanks.

- Wilson

Differences:

A. SPL

1. Reduction in the number of DDR Instances

•  U-boot (following codes not found)

diff --git a/board/ti/j721s2/evm.c b/board/ti/j721s2/evm.c
index 90b7ca1150..51e50fa9c5 100644
--- a/board/ti/j721s2/evm.c
+++ b/board/ti/j721s2/evm.c
@@ -67,8 +67,8 @@ int dram_init_banksize(void)
 #ifdef CONFIG_PHYS_64BIT
 	/* Bank 1 declares the memory available in the DDR high region */
 	gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE1;
-	gd->bd->bi_dram[1].size = 0x37fffffff;
-	gd->ram_size = 0x400000000;
+	gd->bd->bi_dram[1].size = 0x17fffffff;
+	gd->ram_size = 0x200000000;
 #endif

3. Disabling/removing the additional cores

•  U-boot (following codes not found)

diff --git a/arch/arm/dts/k3-j721s2-common-proc-board.dts b/arch/arm/dts/k3-j721s2-common-proc-board.dts
index 5b7e33490f..ffd9c8568b 100644
--- a/arch/arm/dts/k3-j721s2-common-proc-board.dts
+++ b/arch/arm/dts/k3-j721s2-common-proc-board.dts
@@ -32,8 +32,6 @@
 		remoteproc1 = &mcu_r5fss0_core1;
 		remoteproc2 = &main_r5fss0_core0;
 		remoteproc3 = &main_r5fss0_core1;
-		remoteproc4 = &main_r5fss1_core0;
-		remoteproc5 = &main_r5fss1_core1;
 		remoteproc6 = &c71_0;
 		remoteproc7 = &c71_1;
 	};

• Linux (following codes not found)

diff --git a/arch/arm/dts/k3-j721s2-common-proc-board.dts b/arch/arm/dts/k3-j721s2-common-proc-board.dts
index 5b7e33490f..ffd9c8568b 100644
--- a/arch/arm/dts/k3-j721s2-common-proc-board.dts
+++ b/arch/arm/dts/k3-j721s2-common-proc-board.dts
@@ -32,8 +32,6 @@
 		remoteproc1 = &mcu_r5fss0_core1;
 		remoteproc2 = &main_r5fss0_core0;
 		remoteproc3 = &main_r5fss0_core1;
-		remoteproc4 = &main_r5fss1_core0;
-		remoteproc5 = &main_r5fss1_core1;
 		remoteproc6 = &c71_0;
 		remoteproc7 = &c71_1;
 	};