From 778e3f5a95b69ee590e43de5d20ec168549cded0 Mon Sep 17 00:00:00 2001
From: dwf1m12 <d.w.flynn@soton.ac.uk>
Date: Mon, 2 Oct 2023 20:05:41 +0100
Subject: [PATCH] add block size 16 DMA transfer checking
---
software/common/validation/dma_tests.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/software/common/validation/dma_tests.c b/software/common/validation/dma_tests.c
index 87221a7..e6a13ce 100644
--- a/software/common/validation/dma_tests.c
+++ b/software/common/validation/dma_tests.c
@@ -297,7 +297,7 @@ void dma_memory_copy (unsigned int src, unsigned int dest, unsigned int size, un
(size << 21) | /* dst_prot_ctrl - HPROT[3:1] */
(size << 18) | /* src_prot_ctrl - HPROT[3:1] */
// (0 << 14) | /* R_power */
- (4 << 14) | /* R_power for 16-word block transfer*/
+ (4 << 14) | /* R_power set for up to 16 transfers */
((num-1)<< 4) | /* n_minus_1 */
(0 << 3) | /* next_useburst */
(2 << 0) ; /* cycle_ctrl - auto */
@@ -356,6 +356,21 @@ int dma_simple_test(void)
}
}
+// then as 16 byte transfers
+ dma_memory_copy ((unsigned int) &source_data_array[0],(unsigned int) &dest_data_array[0], 0, 16);
+ do { /* Wait until PL230 DMA controller return to idle state */
+ current_state = (CMSDK_DMA->DMA_STATUS >> 4) & 0xF;
+ } while (current_state!=0);
+
+ for (i=0;i<4;i++) {
+ /* Debugging printf: */
+ /*printf (" - dest[i] = %x\n", dest_data_array[i]);*/
+ if (dest_data_array[i]!= i){
+ printf ("ERROR:dest_data_array[%d], expected %x, actual %x\n", i, i, dest_data_array[i]);
+ err_code |= (1<<i);
+ }
+ }
+
/* Generate return value */
if (err_code != 0) {
printf ("ERROR : simple DMA failed (0x%x)\n", err_code);
--
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