From: Peter Maydell <peter.maydell@linaro.org>
Date: Sun, 28 Aug 2011 16:22:18 +0000 (+0000)
Subject: omap_gpmc: GPMC_IRQSTATUS is write-one-to-clear
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9c8255e12422771cdecbb3bf538f0732be629e2a;p=qemu.git

omap_gpmc: GPMC_IRQSTATUS is write-one-to-clear

Fix a bug in the handling of writes to GPMC_IRQSTATUS:
it behaves as "write one to clear, writing zero is ignored".

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---

diff --git a/hw/omap_gpmc.c b/hw/omap_gpmc.c
index d16b28bd25..ff4d4854ea 100644
--- a/hw/omap_gpmc.c
+++ b/hw/omap_gpmc.c
@@ -284,7 +284,7 @@ static void omap_gpmc_write(void *opaque, target_phys_addr_t addr,
         break;
 
     case 0x018:	/* GPMC_IRQSTATUS */
-        s->irqen = ~value;
+        s->irqen &= ~value;
         omap_gpmc_int_update(s);
         break;