hw/block: m25p80: Support fast read for SST flashes
Per SST25VF016B datasheet [1], SST flash requires a dummy byte after the address bytes. Note only SPI mode is supported by SST flashes. [1] http://ww1.microchip.com/downloads/en/devicedoc/s71271_04.pdf Signed-off-by: Bin Meng <bin.meng@windriver.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210306060152.7250-1-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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@ -895,6 +895,9 @@ static void decode_fast_read_cmd(Flash *s)
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s->needed_bytes = get_addr_length(s);
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s->needed_bytes = get_addr_length(s);
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switch (get_man(s)) {
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switch (get_man(s)) {
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/* Dummy cycles - modeled with bytes writes instead of bits */
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/* Dummy cycles - modeled with bytes writes instead of bits */
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case MAN_SST:
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s->needed_bytes += 1;
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break;
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case MAN_WINBOND:
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case MAN_WINBOND:
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s->needed_bytes += 8;
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s->needed_bytes += 8;
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break;
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break;
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