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| author | Peter Crosthwaite <peter.crosthwaite@xilinx.com> | 2012-10-19 19:08:04 +1000 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2012-11-01 19:42:35 +0100 |
| commit | 2ddef11bede823b068b59a66b4c5c62377e69b2f (patch) | |
| tree | 0cafadb0d8eaf279161478cacb2535e09f797655 /hw/cadence_uart.c | |
| parent | 286d52ebfc0d0d53c2a878e454292fea14bad41b (diff) | |
| download | qemu-2ddef11bede823b068b59a66b4c5c62377e69b2f.tar.gz | |
cadence_uart: More debug information
Add more helpful debug information to the cadence UART.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'hw/cadence_uart.c')
| -rw-r--r-- | hw/cadence_uart.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/hw/cadence_uart.c b/hw/cadence_uart.c index a7d0504c58..686e6172d0 100644 --- a/hw/cadence_uart.c +++ b/hw/cadence_uart.c @@ -359,7 +359,7 @@ static void uart_write(void *opaque, hwaddr offset, { UartState *s = (UartState *)opaque; - DB_PRINT(" offset:%x data:%08x\n", offset, (unsigned)value); + DB_PRINT(" offset:%x data:%08x\n", (unsigned)offset, (unsigned)value); offset >>= 2; switch (offset) { case R_IER: /* ier (wts imr) */ @@ -405,12 +405,15 @@ static uint64_t uart_read(void *opaque, hwaddr offset, offset >>= 2; if (offset >= R_MAX) { - return 0; + c = 0; } else if (offset == R_TX_RX) { uart_read_rx_fifo(s, &c); - return c; + } else { + c = s->r[offset]; } - return s->r[offset]; + + DB_PRINT(" offset:%x data:%08x\n", (unsigned)(offset << 2), (unsigned)c); + return c; } static const MemoryRegionOps uart_ops = { |