Patchwork [arm-devs,v4,04/15] xilinx_spips: Add verbose LQSPI debug output

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Submitter Peter Crosthwaite
Date May 21, 2013, 6:31 a.m.
Message ID <26e508da4af11058d37daa777064c9e5c2a69abb.1369117359.git.peter.crosthwaite@xilinx.com>
Download mbox | patch
Permalink /patch/245200/
State New
Headers show

Comments

Peter Crosthwaite - May 21, 2013, 6:31 a.m.
From: Peter Crosthwaite <peter.crosthwaite@xilinx.com>

You really need this is you want to track a guest banging on LQSPI.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
---

 hw/ssi/xilinx_spips.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Patch

diff --git a/hw/ssi/xilinx_spips.c b/hw/ssi/xilinx_spips.c
index a8691d5..29636ce 100644
--- a/hw/ssi/xilinx_spips.c
+++ b/hw/ssi/xilinx_spips.c
@@ -456,10 +456,13 @@  lqspi_read(void *opaque, hwaddr addr, unsigned int size)
     int i;
     XilinxQSPIPS *q = opaque;
     XilinxSPIPS *s = opaque;
+    uint32_t ret;
 
     if (addr >= q->lqspi_cached_addr &&
             addr <= q->lqspi_cached_addr + LQSPI_CACHE_SIZE - 4) {
-        return q->lqspi_buf[(addr - q->lqspi_cached_addr) >> 2];
+        ret = q->lqspi_buf[(addr - q->lqspi_cached_addr) >> 2];
+        DB_PRINT("addr: %08x, data: %08x\n", (unsigned)addr, (unsigned)ret);
+        return ret;
     } else {
         int flash_addr = (addr / num_effective_busses(s));
         int slave = flash_addr >> LQSPI_ADDRESS_BITS;