hw/char/pl011: add a clock input

Add a clock input to the PL011 UART so we can compute the current baud
rate and trace it. This is intended for developers who wish to use QEMU
to e.g. debug their firmware or to figure out the baud rate configured
by an unknown/closed source binary.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Luc Michel <luc@lmichel.fr>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/hw/char/pl011.h b/include/hw/char/pl011.h
index a91ea50e11..33e5e5317b 100644
--- a/include/hw/char/pl011.h
+++ b/include/hw/char/pl011.h
@@ -49,6 +49,7 @@ struct PL011State {
     int read_trigger;
     CharBackend chr;
     qemu_irq irq[6];
+    Clock *clk;
     const unsigned char *id;
 };