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Re: [Qemu-devel] [PATCH] mps2-an511: Fix wiring of UART overflow interru


From: Philippe Mathieu-Daudé
Subject: Re: [Qemu-devel] [PATCH] mps2-an511: Fix wiring of UART overflow interrupt lines
Date: Tue, 12 Sep 2017 13:22:19 -0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0

(CC'ed qemu-arm)

Hi Peter,

On 09/12/2017 01:13 PM, Peter Maydell wrote:
Fix an error that meant we were wiring every UART's overflow
interrupts into the same inputs 0 and 1 of the OR gate,
rather than giving each its own input.

oops tricky to catch


Cc: address@hidden
Signed-off-by: Peter Maydell <address@hidden>
---
  hw/arm/mps2.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/arm/mps2.c b/hw/arm/mps2.c
index abb0ab6..769cff8 100644
--- a/hw/arm/mps2.c
+++ b/hw/arm/mps2.c

        /* The overflow IRQs for all UARTs are ORed together.
         * Tx and Rx IRQs for each UART are ORed together.
         */

can you update this comment?

Reviewed-by: Philippe Mathieu-Daudé <address@hidden>

@@ -287,8 +287,8 @@ static void mps2_common_init(MachineState *machine)
              cmsdk_apb_uart_create(uartbase[i],
                                    qdev_get_gpio_in(txrx_orgate_dev, 0),
                                    qdev_get_gpio_in(txrx_orgate_dev, 1),
-                                  qdev_get_gpio_in(orgate_dev, 0),
-                                  qdev_get_gpio_in(orgate_dev, 1),
+                                  qdev_get_gpio_in(orgate_dev, i * 2),
+                                  qdev_get_gpio_in(orgate_dev, i * 2 + 1),
                                    NULL,
                                    uartchr, SYSCLK_FRQ);
          }




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