[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Qemu-devel] [PATCH] cadence_uart: enable tx/rx on reset

From: Josh Cartwright
Subject: [Qemu-devel] [PATCH] cadence_uart: enable tx/rx on reset
Date: Mon, 22 Oct 2012 09:20:40 -0500
User-agent: Mutt/1.5.21 (2011-07-01)

Change the cadence_uart such that tx/rx is enabled on reset.  Assuming
both are enabled makes debugging early Linux kernel bootup a little bit

Signed-off-by: Josh Cartwright <address@hidden>

I've used this patch mostly for my own testing, but it may be of general
use.  On a real system, I would expect the bootloader to leave the uart
in an enabled state, but I'm not using a bootloader for my testing :).

 hw/cadence_uart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/cadence_uart.c b/hw/cadence_uart.c
index f8afc4e..2fb21a6 100644
--- a/hw/cadence_uart.c
+++ b/hw/cadence_uart.c
@@ -421,7 +421,7 @@ static const MemoryRegionOps uart_ops = {
 static void cadence_uart_reset(UartState *s)
-    s->r[R_CR] = 0x00000128;
     s->r[R_IMR] = 0;
     s->r[R_CISR] = 0;
     s->r[R_RTRIG] = 0x00000020;

reply via email to

[Prev in Thread] Current Thread [Next in Thread]