diff --git a/ubb-patgen/ubb-patgen.c b/ubb-patgen/ubb-patgen.c
index 8f0d927..dd90df1 100644
--- a/ubb-patgen/ubb-patgen.c
+++ b/ubb-patgen/ubb-patgen.c
@@ -132,6 +132,8 @@ static int select_freq(struct mmcclk *res, int hz, int rel)
 /* ----- DMA the pattern --------------------------------------------------- */
 
 
+#ifdef USE_DMA
+
 static uint32_t old_dmac;
 
 
@@ -179,6 +181,15 @@ static void wait_dma_done(void)
 	while (!((DCS(DMA) >> 3) & 1));	/* DCS.TT */
 }
 
+#else /* USE_DMA */
+
+
+static void dma_init(void) {}
+static void dma_cleanup(void) {}
+static void dma_setup(unsigned long buf, int nibbles) {}
+
+#endif /* !USE_DMA */
+
 
 static void wait_response(void)
 {
@@ -224,7 +235,9 @@ static void mmc_buffer(const struct mmcclk *clk,
 
 	MSC_CMDAT =
 	    (2 << 9) |		/* 4 bit bus */
+#ifdef USE_DMA
 	    (1 << 8) |		/* DMA */
+#endif
 	    (1 << 4) |		/* write */
 	    (1 << 3) |		/* with data transfer */
 	    1;			/* R1 response */
@@ -252,6 +265,8 @@ static void mmc_buffer(const struct mmcclk *clk,
 
 	PDFUNS = mask;
 
+#ifdef USE_DMA
+
 	/*
 	 * Send the pattern with DMA. Note that we still have to send the first
 	 * pattern, since the static state we begin from may not have been
@@ -264,6 +279,17 @@ static void mmc_buffer(const struct mmcclk *clk,
 
 	wait_dma_done();
 
+#else /* USE_DMA */
+
+	const uint32_t *p;
+
+	for (p = (void *) buf; p != (void *) buf+(nibbles >> 1); p++) {
+		while ((MSC_STAT >> 7) & 1);
+		MSC_TXFIFO = *p;
+	}
+
+#endif /* !USE_DMA */
+
 	wait_fifo_empty();
 	wait_shifted(clk);
 
@@ -280,10 +306,14 @@ static void mmc_buffer(const struct mmcclk *clk,
 static void send_buffer(const struct mmcclk *clk,
     const uint8_t *buf, int nibbles, uint32_t mask)
 {
+#ifdef USE_DMA
 	unsigned long phys;
 
 	phys = physmem_xlat((void *) buf);
 	mmc_buffer(clk, buf[0] >> 4, phys, nibbles, mask);
+#else
+	mmc_buffer(clk, buf[0] >> 4, (unsigned long) buf, nibbles, mask);
+#endif
 }