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[PATCH] hw/block: m25p80: Fix fast read for SST flashes


From: Bin Meng
Subject: [PATCH] hw/block: m25p80: Fix fast read for SST flashes
Date: Mon, 30 Nov 2020 10:50:02 +0800

From: Bin Meng <bin.meng@windriver.com>

SST flashes require a dummy byte after the address bits.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
---

 hw/block/m25p80.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index 483925f..9b36762 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -825,6 +825,9 @@ static void decode_fast_read_cmd(Flash *s)
     s->needed_bytes = get_addr_length(s);
     switch (get_man(s)) {
     /* Dummy cycles - modeled with bytes writes instead of bits */
+    case MAN_SST:
+        s->needed_bytes += 1;
+        break;
     case MAN_WINBOND:
         s->needed_bytes += 8;
         break;
-- 
2.7.4




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