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[Qemu-devel] [PULL 38/43] m25p80: add support for two bytes WRSR for Mac

From: Peter Maydell
Subject: [Qemu-devel] [PULL 38/43] m25p80: add support for two bytes WRSR for Macronix chips
Date: Fri, 15 Jun 2018 15:25:16 +0100

From: Cédric Le Goater <address@hidden>

On Macronix chips, two bytes can written to the WRSR. First byte will
configure the status register and the second the configuration
register. It is important to save the configuration value as it
contains the dummy cycle setting when using dual or quad IO mode.

Signed-off-by: Cédric Le Goater <address@hidden>
Acked-by: Alistair Francis <address@hidden>
Signed-off-by: Peter Maydell <address@hidden>
 hw/block/m25p80.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index a5ccffb4aae..b0ed8fa4188 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -698,6 +698,7 @@ static void complete_collecting_data(Flash *s)
         case MAN_MACRONIX:
             s->quad_enable = extract32(s->data[0], 6, 1);
             if (s->len > 1) {
+                s->volatile_cfg = s->data[1];
                 s->four_bytes_address_mode = extract32(s->data[1], 5, 1);

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