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m25p80: add support for two bytes WRSR for Macronix chips

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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 <clg@kaod.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Cédric Le Goater 2018-06-15 14:57:15 +01:00 committed by Peter Maydell
parent acd9575e59
commit 2151b044fd
1 changed files with 1 additions and 0 deletions
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hw/block/m25p80.c
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@ -698,6 +698,7 @@ static void complete_collecting_data(Flash *s)
case MAN_MACRONIX: case MAN_MACRONIX:
s->quad_enable = extract32(s->data[0], 6, 1); s->quad_enable = extract32(s->data[0], 6, 1);
if (s->len > 1) { if (s->len > 1) {
s->volatile_cfg = s->data[1];
s->four_bytes_address_mode = extract32(s->data[1], 5, 1); s->four_bytes_address_mode = extract32(s->data[1], 5, 1);
} }
break; break;