[TDA4 C7x UDMA] Meets an issue in UDMA usage.

lei fu1

Hello There,

I create a TIROTS project in C71x based on example"/psdk_rtos_auto_j7_06_01_00_15/pdk/packages/ti/drv/udma/examples/udma_memcpy_test" also linked bios, spi, i2c, CSL , udma. uart, osal(tirtos) libs in it.

and found i can push the UDMA TR to ring gTxRingMem, but can't get the reponse from gTxCompRingMem, it seems DMA is not enabled correctly. Could you please help me out?

Thanks a lot!

Best Regards,

Samuel

over 5 years ago

0 lei fu1 over 5 years ago

Expert 1640 points

Hi All,

Today I removed my won code, just test "/psdk_rtos_auto_j7_06_01_00_15/pdk/packages/ti/drv/udma/examples/udma_memcpy_test" in RTOS

And found:

1. Need remove "Udma_appC7xPreInit();" in main_tirtos.c. otherwise the program will not enter taskFxn();

2. UART print is not work, as App_print("UDMA memcpy application started...\n"); will be blocked by UART_printf;

3. Just remove this uart_printf. and code will block in following

Is any one can help me solve this urgent issue.

Thanks a lot!

Best Regards,

Samuel

0 lei fu1 over 5 years ago

Expert 1640 points

Hi All,

Today I removed my won code, just test "/psdk_rtos_auto_j7_06_01_00_15/pdk/packages/ti/drv/udma/examples/udma_memcpy_test" in RTOS

And found:

1. Need remove "Udma_appC7xPreInit();" in main_tirtos.c. otherwise the program will not enter taskFxn();

2. UART print is not work, as App_print("UDMA memcpy application started...\n"); will be blocked by UART_printf;

3. Just remove this uart_printf. and code will block in following

Is any one can help me solve this urgent issue.

Thanks a lot!

Best Regards,

Samuel

0 Prasad Konnur over 5 years ago in reply to lei fu1

TI__Expert 6065 points

Hi,

This is a known issue and it is fixed in latest code.
Attached the patch file containing the fix.

Fullscreen 0001-Bugfix-PRSDK-7531-udma-memcpy-testapp-fails-on-c7x.patch.txt Download

From 59cb0936c4019f1399fed8715149aacc2a04f21a Mon Sep 17 00:00:00 2001
From: Prasad Konnur <prasadkonnur@ti.com>
Date: Thu, 5 Dec 2019 15:23:51 +0530
Subject: [PATCH] Bugfix - PRSDK-7531: udma memcpy testapp fails on c7x

Signed-off-by: Prasad Konnur <prasadkonnur@ti.com>
---
 packages/ti/board/src/j721e_evm/board_init.c                | 3 +++
 packages/ti/drv/udma/examples/udma_apputils/udma_apputils.c | 3 ---
 packages/ti/drv/udma/soc/V1/udma_soc.c                      | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)
 mode change 100644 => 100755 packages/ti/drv/udma/soc/V1/udma_soc.c

diff --git a/packages/ti/board/src/j721e_evm/board_init.c b/packages/ti/board/src/j721e_evm/board_init.c
index b5d4373..b47f8a8 100755
--- a/packages/ti/board/src/j721e_evm/board_init.c
+++ b/packages/ti/board/src/j721e_evm/board_init.c
@@ -87,6 +87,9 @@ static Board_STATUS Board_sysInit(void)
     if(gBoardSysInitDone == 0)
     {
         Sciclient_configPrmsInit(&config);
+    #if defined(BUILD_C7X_1)
+        config.isSecureMode  = 1;
+    #endif
         ret = Sciclient_init(&config);
 
         if(ret != 0)
diff --git a/packages/ti/drv/udma/examples/udma_apputils/udma_apputils.c b/packages/ti/drv/udma/examples/udma_apputils/udma_apputils.c
index 819df26..31ac39b 100755
--- a/packages/ti/drv/udma/examples/udma_apputils/udma_apputils.c
+++ b/packages/ti/drv/udma/examples/udma_apputils/udma_apputils.c
@@ -254,9 +254,6 @@ void Udma_appC7xPreInit(void)
     cfgClec.extEvtNum         = 0;
     cfgClec.c7xEvtNum         = 14;
     CSL_clecConfigEvent(clecBaseAddr, i, &cfgClec);
-
-    /* Switch now */
-    CSL_c7xSecSupv2NonSecSupv();
 #endif
 
     return;
diff --git a/packages/ti/drv/udma/soc/V1/udma_soc.c b/packages/ti/drv/udma/soc/V1/udma_soc.c
old mode 100644
new mode 100755
index 49fa73f..6eed48b
--- a/packages/ti/drv/udma/soc/V1/udma_soc.c
+++ b/packages/ti/drv/udma/soc/V1/udma_soc.c
@@ -567,7 +567,7 @@ uint32_t Udma_isCacheCoherent(void)
 {
     uint32_t isCacheCoherent;
 
-#if defined (BUILD_MPU1_0) || defined (BUILD_C7X_1)
+#if defined (BUILD_MPU1_0)
     isCacheCoherent = TRUE;
 #else
     isCacheCoherent = FALSE;
-- 
1.9.1

Regards,
Prasad

0 lei fu1 over 5 years ago in reply to Prasad Konnur

Expert 1640 points

Hi Prasad,

Thanks for the reply. I will try this patch asap.

Best Regards,

Samuel

0 lei fu1 over 5 years ago in reply to lei fu1

Expert 1640 points

Hi Prasad,

Thanks for this patch. i have validated on my side. C71x with RTOS works fine.

Best Regards,

Samuel

0 Prasad Konnur over 5 years ago in reply to lei fu1

TI__Expert 6065 points

Thanks for confirmation. I am closing this thread.

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[TDA4 C7x UDMA] Meets an issue in UDMA usage.