[Qemu-devel] MTD timeout on bootup

[James Hanley <jhanley@dgtlrift.com>]

When trying to bootup a pristine zync image from the zc702 tarball, it
would always fail with the MTD detection of the serial flash device type
command over the SPI.  I believe this section of code may have the logic
flipped.  Once I changed it to the following, I was able to detect the
flash type when booting the pristine image from Xilinx.
-Jim


>From baaaacca370c13526fd2b8c7b33c7d9e8a6d7b8d Mon Sep 17 00:00:00 2001
From: Jim Hanley <Jim.Hanley@LandisGyr.com>
Date: Thu, 23 Mar 2017 10:29:34 -0400
Subject: [PATCH] MTD writes from the SPI were never being dequeue...
Signed-off-by:

---
 hw/ssi/xilinx_spips.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/ssi/xilinx_spips.c b/hw/ssi/xilinx_spips.c
index da8adfa..a3af1f7 100644
--- a/hw/ssi/xilinx_spips.c
+++ b/hw/ssi/xilinx_spips.c
@@ -482,8 +482,8 @@ static void xilinx_spips_write(void *opaque, hwaddr
addr,
     s->regs[addr] = (s->regs[addr] & ~mask) | (value & mask);
 no_reg_update:
     xilinx_spips_update_cs_lines(s);
-    if ((man_start_com && s->regs[R_CONFIG] & MAN_START_EN) ||
-            (fifo8_is_empty(&s->tx_fifo) && s->regs[R_CONFIG] &
MAN_START_EN)) {
+    if (!((man_start_com && s->regs[R_CONFIG] & MAN_START_EN) ||
+            (fifo8_is_empty(&s->tx_fifo) && s->regs[R_CONFIG] &
MAN_START_EN))) {
         xilinx_spips_flush_txfifo(s);
     }
     xilinx_spips_update_cs_lines(s);
-- 
2.7.4