From: Baruch Siach <baruch@tkos.co.il>
Date: Thu, 6 Oct 2022 10:19:48 +0000 (+0300)
Subject: hw/char/pl011: fix baud rate calculation
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=31cb769c317e0623cbe2a3e8da437b6cd7ddef9b;p=qemu.git

hw/char/pl011: fix baud rate calculation

The PL011 TRM says that "UARTIBRD = 0 is invalid and UARTFBRD is ignored
when this is the case". But the code looks at FBRD for the invalid case.
Fix this.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Message-id: 1408f62a2e45665816527d4845ffde650957d5ab.1665051588.git.baruchs-c@neureality.ai
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---

diff --git a/hw/char/pl011.c b/hw/char/pl011.c
index 6e2d7f7509..c076813423 100644
--- a/hw/char/pl011.c
+++ b/hw/char/pl011.c
@@ -176,7 +176,7 @@ static unsigned int pl011_get_baudrate(const PL011State *s)
 {
     uint64_t clk;
 
-    if (s->fbrd == 0) {
+    if (s->ibrd == 0) {
         return 0;
     }