tools: spll-recorder should not try to read from an empty FIFO

c28d8537 · Tomasz Wlostowski · Adam Wujek · 92b55882 · c28d8537
Commit c28d8537 authored Nov 17, 2023 by Tomasz Wlostowski Committed by Adam Wujek Nov 17, 2023
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wrpc.c tools/wrpc.c +9 -0

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--- a/tools/wrpc.c
+++ b/tools/wrpc.c
@@ -1623,10 +1623,19 @@ void spll_readout_direct(struct board* board )

 		while( cnt < buf_size - max_record_size )
 		{
+
 			uint32_t fifo_sr = board->readl(board, OFFSET_SOFTPLL + offsetof( struct SPLL_WB, DFR_HOST_CSR ) );

+
+
 			if( got_a_full_record && ( fifo_sr & SPLL_DFR_HOST_CSR_EMPTY ) )
 				break;
+			else
+			{
+				do {
+					fifo_sr = board->readl(board, OFFSET_SOFTPLL + offsetof( struct SPLL_WB, DFR_HOST_CSR ) );
+				} while( fifo_sr & SPLL_DFR_HOST_CSR_EMPTY );
+			}

 			uint32_t r = board->readl(board, OFFSET_SOFTPLL + offsetof( struct SPLL_WB, DFR_HOST_R0 ) );
 			buf[cnt++] = r;