| Message ID | 20240703081623.2740862-5-jamin_lin@aspeedtech.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | support AST2700 network | expand |
On 7/3/24 10:16 AM, Jamin Lin wrote: > According to the w25q01jv datasheet at page 16, > it is required to set QE bit in "Status Register 2". > Besides, users are able to utilize "Write Status Register 1(0x01)" > command to set QE bit in "Status Register 2" and > utilize "Read Status Register 2(0x35)" command to get the QE bit status. > > To support quad mode for w25q01jvq, update collecting data needed > 2 bytes for WRSR command in decode_new_cmd function and > verify QE bit at the second byte of collecting data bit 2 > in complete_collecting_data. > > Update RDCR_EQIO command to set bit 2 of return data > if quad mode enable in decode_new_cmd. > > Signed-off-by: Troy Lee <troy_lee@aspeedtech.com> > Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Thanks, C. > --- > hw/block/m25p80.c | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > > diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c > index 8dec134832..9e99107b42 100644 > --- a/hw/block/m25p80.c > +++ b/hw/block/m25p80.c > @@ -416,6 +416,7 @@ typedef enum { > /* > * Micron: 0x35 - enable QPI > * Spansion: 0x35 - read control register > + * Winbond: 0x35 - quad enable > */ > RDCR_EQIO = 0x35, > RSTQIO = 0xf5, > @@ -798,6 +799,11 @@ static void complete_collecting_data(Flash *s) > s->four_bytes_address_mode = extract32(s->data[1], 5, 1); > } > break; > + case MAN_WINBOND: > + if (s->len > 1) { > + s->quad_enable = !!(s->data[1] & 0x02); > + } > + break; > default: > break; > } > @@ -1254,6 +1260,10 @@ static void decode_new_cmd(Flash *s, uint32_t value) > s->needed_bytes = 2; > s->state = STATE_COLLECTING_VAR_LEN_DATA; > break; > + case MAN_WINBOND: > + s->needed_bytes = 2; > + s->state = STATE_COLLECTING_VAR_LEN_DATA; > + break; > default: > s->needed_bytes = 1; > s->state = STATE_COLLECTING_DATA; > @@ -1431,6 +1441,12 @@ static void decode_new_cmd(Flash *s, uint32_t value) > case MAN_MACRONIX: > s->quad_enable = true; > break; > + case MAN_WINBOND: > + s->data[0] = (!!s->quad_enable) << 1; > + s->pos = 0; > + s->len = 1; > + s->state = STATE_READING_DATA; > + break; > default: > break; > }
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c index 8dec134832..9e99107b42 100644 --- a/hw/block/m25p80.c +++ b/hw/block/m25p80.c @@ -416,6 +416,7 @@ typedef enum { /* * Micron: 0x35 - enable QPI * Spansion: 0x35 - read control register + * Winbond: 0x35 - quad enable */ RDCR_EQIO = 0x35, RSTQIO = 0xf5, @@ -798,6 +799,11 @@ static void complete_collecting_data(Flash *s) s->four_bytes_address_mode = extract32(s->data[1], 5, 1); } break; + case MAN_WINBOND: + if (s->len > 1) { + s->quad_enable = !!(s->data[1] & 0x02); + } + break; default: break; } @@ -1254,6 +1260,10 @@ static void decode_new_cmd(Flash *s, uint32_t value) s->needed_bytes = 2; s->state = STATE_COLLECTING_VAR_LEN_DATA; break; + case MAN_WINBOND: + s->needed_bytes = 2; + s->state = STATE_COLLECTING_VAR_LEN_DATA; + break; default: s->needed_bytes = 1; s->state = STATE_COLLECTING_DATA; @@ -1431,6 +1441,12 @@ static void decode_new_cmd(Flash *s, uint32_t value) case MAN_MACRONIX: s->quad_enable = true; break; + case MAN_WINBOND: + s->data[0] = (!!s->quad_enable) << 1; + s->pos = 0; + s->len = 1; + s->state = STATE_READING_DATA; + break; default: break; }