| Message ID | 20230328154105.448540-9-miquel.raynal@bootlin.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | mtd: spi-nor: read while write support | expand |
On 3/28/23 16:41, Miquel Raynal wrote: > Describe this new part and provide the RWW flag for it. > > There is no public datasheet, but here are the sfdp tables plus base > testing to show it works. > > mx25uw51245g > c2813a > macronix > 53464450080104fd00070114400000ff8701011c900000ff0a0001080001 > 00ff05000105200100ff84000102340100ff0000000000000000ffffffff > ffffffffe5208affffffff1f00ff00ff00ff00ffeeffffffffff00ffffff > 00ff0c2010d800ff00ff87790100821200e27704674630b030b0f4bdd55c > 000000ff101000200000000000007ca14800000000008888000000000000 > 00400fd1fff30fd1fff300050090000500b1002b0095002b0096727103b8 > 727103b80000000090a3188200c069960000000000000000727100987271 > 00b8727100990000000072710098727100f872710099727100f900000000 > 00000000011501d0727106d8000086500000060100000000020001030002 > 00000000060100000000000072060002000000eec0697272717100d8f7f6 > 000a00001445988043060f0021dcffff > 047a884cf44d9ffc2a94d3ab37b48c63 /sys/bus/spi/devices/spi0.0/spi-nor/sfdp which hash alg was used, was it sha1? No need to resubmnit just for this. > > 6+0 records in > 6+0 records out > Copied 6291456 bytes from qspi_test to address 0x00000000 in flash > Erased 6291456 bytes from address 0x00000000 in flash > Copied 6291456 bytes from address 0x00000000 in flash to qspi_read > 0000000 ffff ffff ffff ffff ffff ffff ffff ffff > * > 0600000 > Copied 6291456 bytes from qspi_test to address 0x00000000 in flash > Copied 6291456 bytes from address 0x00000000 in flash to qspi_read > d24a9523db829a0df688f34b8dc76a1383b74024 qspi_test > d24a9523db829a0df688f34b8dc76a1383b74024 qspi_read > > Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> > --- > drivers/mtd/spi-nor/macronix.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/mtd/spi-nor/macronix.c b/drivers/mtd/spi-nor/macronix.c > index 6853ec9ae65d..b65d41e5f749 100644 > --- a/drivers/mtd/spi-nor/macronix.c > +++ b/drivers/mtd/spi-nor/macronix.c > @@ -82,6 +82,10 @@ static const struct flash_info macronix_nor_parts[] = { > { "mx25u51245g", INFO(0xc2253a, 0, 64 * 1024, 1024) > NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) > FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, > + { "mx25uw51245g", INFOB(0xc2813a, 0, 16 * 1024, 1024, 4) Sector size and nsectors shall be discovered at parse SFDP time. Does INFOB(0xc2813a, 0, 0, 0, 4) work for you? > + PARSE_SFDP Yaay > + FLAGS(SPI_NOR_RWW) > + FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, Is SPI_NOR_4B_OPCODES flag really needed? > { "mx25v8035f", INFO(0xc22314, 0, 64 * 1024, 16) > NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | > SPI_NOR_QUAD_READ) },
Hi Tudor, tudor.ambarus@linaro.org wrote on Tue, 28 Mar 2023 17:31:46 +0100: > On 3/28/23 16:41, Miquel Raynal wrote: > > Describe this new part and provide the RWW flag for it. > > > > There is no public datasheet, but here are the sfdp tables plus base > > testing to show it works. > > > > mx25uw51245g > > c2813a > > macronix > > 53464450080104fd00070114400000ff8701011c900000ff0a0001080001 > > 00ff05000105200100ff84000102340100ff0000000000000000ffffffff > > ffffffffe5208affffffff1f00ff00ff00ff00ffeeffffffffff00ffffff > > 00ff0c2010d800ff00ff87790100821200e27704674630b030b0f4bdd55c > > 000000ff101000200000000000007ca14800000000008888000000000000 > > 00400fd1fff30fd1fff300050090000500b1002b0095002b0096727103b8 > > 727103b80000000090a3188200c069960000000000000000727100987271 > > 00b8727100990000000072710098727100f872710099727100f900000000 > > 00000000011501d0727106d8000086500000060100000000020001030002 > > 00000000060100000000000072060002000000eec0697272717100d8f7f6 > > 000a00001445988043060f0021dcffff > > 047a884cf44d9ffc2a94d3ab37b48c63 /sys/bus/spi/devices/spi0.0/spi-nor/sfdp > > which hash alg was used, was it sha1? No need to resubmnit just for this. Actually git just ignored all the lines starting with '#' like if they were comments and I did not notice... I will amend my commit logs and resend. > > > > 6+0 records in > > 6+0 records out > > Copied 6291456 bytes from qspi_test to address 0x00000000 in flash > > Erased 6291456 bytes from address 0x00000000 in flash > > Copied 6291456 bytes from address 0x00000000 in flash to qspi_read > > 0000000 ffff ffff ffff ffff ffff ffff ffff ffff > > * > > 0600000 > > Copied 6291456 bytes from qspi_test to address 0x00000000 in flash > > Copied 6291456 bytes from address 0x00000000 in flash to qspi_read > > d24a9523db829a0df688f34b8dc76a1383b74024 qspi_test > > d24a9523db829a0df688f34b8dc76a1383b74024 qspi_read > > > > Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> > > --- > > drivers/mtd/spi-nor/macronix.c | 4 ++++ > > 1 file changed, 4 insertions(+) > > > > diff --git a/drivers/mtd/spi-nor/macronix.c b/drivers/mtd/spi-nor/macronix.c > > index 6853ec9ae65d..b65d41e5f749 100644 > > --- a/drivers/mtd/spi-nor/macronix.c > > +++ b/drivers/mtd/spi-nor/macronix.c > > @@ -82,6 +82,10 @@ static const struct flash_info macronix_nor_parts[] = { > > { "mx25u51245g", INFO(0xc2253a, 0, 64 * 1024, 1024) > > NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) > > FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, > > + { "mx25uw51245g", INFOB(0xc2813a, 0, 16 * 1024, 1024, 4) > > Sector size and nsectors shall be discovered at parse SFDP time. > Does INFOB(0xc2813a, 0, 0, 0, 4) work for you? I'll check. > > > + PARSE_SFDP > > Yaay > > > + FLAGS(SPI_NOR_RWW) > > + FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, > > Is SPI_NOR_4B_OPCODES flag really needed? I have no idea, I took that from older code. Jaime, what do you think? Thanks, Miquèl
Hi Miquel > > Hi Tudor, > > tudor.ambarus@linaro.org wrote on Tue, 28 Mar 2023 17:31:46 +0100: > > > On 3/28/23 16:41, Miquel Raynal wrote: > > > Describe this new part and provide the RWW flag for it. > > > > > > There is no public datasheet, but here are the sfdp tables plus base > > > testing to show it works. > > > > > > mx25uw51245g > > > c2813a > > > macronix > > > 53464450080104fd00070114400000ff8701011c900000ff0a0001080001 > > > 00ff05000105200100ff84000102340100ff0000000000000000ffffffff > > > ffffffffe5208affffffff1f00ff00ff00ff00ffeeffffffffff00ffffff > > > 00ff0c2010d800ff00ff87790100821200e27704674630b030b0f4bdd55c > > > 000000ff101000200000000000007ca14800000000008888000000000000 > > > 00400fd1fff30fd1fff300050090000500b1002b0095002b0096727103b8 > > > 727103b80000000090a3188200c069960000000000000000727100987271 > > > 00b8727100990000000072710098727100f872710099727100f900000000 > > > 00000000011501d0727106d8000086500000060100000000020001030002 > > > 00000000060100000000000072060002000000eec0697272717100d8f7f6 > > > 000a00001445988043060f0021dcffff > > > 047a884cf44d9ffc2a94d3ab37b48c63 /sys/bus/spi/devices/spi0.0/spi-nor/sfdp > > > > which hash alg was used, was it sha1? No need to resubmnit just for this. > > Actually git just ignored all the lines starting with '#' > like if they were comments and I did not notice... > > I will amend my commit logs and resend. > > > > > > > 6+0 records in > > > 6+0 records out > > > Copied 6291456 bytes from qspi_test to address 0x00000000 in flash > > > Erased 6291456 bytes from address 0x00000000 in flash > > > Copied 6291456 bytes from address 0x00000000 in flash to qspi_read > > > 0000000 ffff ffff ffff ffff ffff ffff ffff ffff > > > * > > > 0600000 > > > Copied 6291456 bytes from qspi_test to address 0x00000000 in flash > > > Copied 6291456 bytes from address 0x00000000 in flash to qspi_read > > > d24a9523db829a0df688f34b8dc76a1383b74024 qspi_test > > > d24a9523db829a0df688f34b8dc76a1383b74024 qspi_read > > > > > > Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> > > > --- > > > drivers/mtd/spi-nor/macronix.c | 4 ++++ > > > 1 file changed, 4 insertions(+) > > > > > > diff --git a/drivers/mtd/spi-nor/macronix.c b/drivers/mtd/spi-nor/macronix.c > > > index 6853ec9ae65d..b65d41e5f749 100644 > > > --- a/drivers/mtd/spi-nor/macronix.c > > > +++ b/drivers/mtd/spi-nor/macronix.c > > > @@ -82,6 +82,10 @@ static const struct flash_info macronix_nor_parts[] = { > > > { "mx25u51245g", INFO(0xc2253a, 0, 64 * 1024, 1024) > > > NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) > > > FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, > > > + { "mx25uw51245g", INFOB(0xc2813a, 0, 16 * 1024, 1024, 4) > > > > Sector size and nsectors shall be discovered at parse SFDP time. > > Does INFOB(0xc2813a, 0, 0, 0, 4) work for you? > > I'll check. > > > > > > + PARSE_SFDP > > > > Yaay > > > > > + FLAGS(SPI_NOR_RWW) > > > + FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, > > > > Is SPI_NOR_4B_OPCODES flag really needed? > > I have no idea, I took that from older code. > > Jaime, what do you think? I think Tudor hopes that SFDP table could determine how many address bytes. In sfdp.c, "spi_nor_parse_bfpt" will check number of address bytes if flash with SFDP table support. Thanks Jaime > > Thanks, > Miquèl
On 3/29/23 06:48, liao jaime wrote: > Hi Miquel > >> >> Hi Tudor, >> >> tudor.ambarus@linaro.org wrote on Tue, 28 Mar 2023 17:31:46 +0100: >> >>> On 3/28/23 16:41, Miquel Raynal wrote: >>>> Describe this new part and provide the RWW flag for it. >>>> >>>> There is no public datasheet, but here are the sfdp tables plus base >>>> testing to show it works. >>>> >>>> mx25uw51245g >>>> c2813a >>>> macronix >>>> 53464450080104fd00070114400000ff8701011c900000ff0a0001080001 >>>> 00ff05000105200100ff84000102340100ff0000000000000000ffffffff >>>> ffffffffe5208affffffff1f00ff00ff00ff00ffeeffffffffff00ffffff >>>> 00ff0c2010d800ff00ff87790100821200e27704674630b030b0f4bdd55c >>>> 000000ff101000200000000000007ca14800000000008888000000000000 >>>> 00400fd1fff30fd1fff300050090000500b1002b0095002b0096727103b8 >>>> 727103b80000000090a3188200c069960000000000000000727100987271 >>>> 00b8727100990000000072710098727100f872710099727100f900000000 >>>> 00000000011501d0727106d8000086500000060100000000020001030002 >>>> 00000000060100000000000072060002000000eec0697272717100d8f7f6 >>>> 000a00001445988043060f0021dcffff >>>> 047a884cf44d9ffc2a94d3ab37b48c63 /sys/bus/spi/devices/spi0.0/spi-nor/sfdp >>> >>> which hash alg was used, was it sha1? No need to resubmnit just for this. >> >> Actually git just ignored all the lines starting with '#' >> like if they were comments and I did not notice... >> >> I will amend my commit logs and resend. >> >>>> >>>> 6+0 records in >>>> 6+0 records out >>>> Copied 6291456 bytes from qspi_test to address 0x00000000 in flash >>>> Erased 6291456 bytes from address 0x00000000 in flash >>>> Copied 6291456 bytes from address 0x00000000 in flash to qspi_read >>>> 0000000 ffff ffff ffff ffff ffff ffff ffff ffff >>>> * >>>> 0600000 >>>> Copied 6291456 bytes from qspi_test to address 0x00000000 in flash >>>> Copied 6291456 bytes from address 0x00000000 in flash to qspi_read >>>> d24a9523db829a0df688f34b8dc76a1383b74024 qspi_test >>>> d24a9523db829a0df688f34b8dc76a1383b74024 qspi_read >>>> >>>> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> >>>> --- >>>> drivers/mtd/spi-nor/macronix.c | 4 ++++ >>>> 1 file changed, 4 insertions(+) >>>> >>>> diff --git a/drivers/mtd/spi-nor/macronix.c b/drivers/mtd/spi-nor/macronix.c >>>> index 6853ec9ae65d..b65d41e5f749 100644 >>>> --- a/drivers/mtd/spi-nor/macronix.c >>>> +++ b/drivers/mtd/spi-nor/macronix.c >>>> @@ -82,6 +82,10 @@ static const struct flash_info macronix_nor_parts[] = { >>>> { "mx25u51245g", INFO(0xc2253a, 0, 64 * 1024, 1024) >>>> NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) >>>> FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, >>>> + { "mx25uw51245g", INFOB(0xc2813a, 0, 16 * 1024, 1024, 4) >>> >>> Sector size and nsectors shall be discovered at parse SFDP time. >>> Does INFOB(0xc2813a, 0, 0, 0, 4) work for you? >> >> I'll check. >> >>> >>>> + PARSE_SFDP >>> >>> Yaay >>> >>>> + FLAGS(SPI_NOR_RWW) >>>> + FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, >>> >>> Is SPI_NOR_4B_OPCODES flag really needed? >> >> I have no idea, I took that from older code. >> >> Jaime, what do you think? > I think Tudor hopes that SFDP table could determine how many address bytes. No, no. :) and hope and programming don't get along. Does this flash define the 4bait table? Can you add a print in parse_4bait table and check if SNOR_F_4B_OPCODES is set? If yes, the fixup flag is not needed. SNOR_F_4B_OPCODES is an indication that the flash supports dedicated opcodes for 4byte address, without the need to change the address mode to 4 byte. When 4B_OPCODES are supported, we prefer not changing the address mode, because when changing to 4 byte address mode, the state is kept at reset (or power loss) and flashes might not be able to boot at lower layers (u-boot for example). So I'd try: { "mx25uw51245g", INFOB(0xc2813a, 0, 0, 0, 4) PARSE_SFDP FLAGS(SPI_NOR_RWW) }, In the future we'd like to add a sfdp-decoder in mtd-utils to decode the sfdp dump and ease the review and avoid such questions, but we couldn't allocate the time to implement it up to now. Meh, we're doing it at best effort, in our spare time. Volunteers? Cheers, ta
Hi Tudor, tudor.ambarus@linaro.org wrote on Wed, 29 Mar 2023 12:12:29 +0100: > On 3/29/23 06:48, liao jaime wrote: > > Hi Miquel > > > >> > >> Hi Tudor, > >> > >> tudor.ambarus@linaro.org wrote on Tue, 28 Mar 2023 17:31:46 +0100: > >> > >>> On 3/28/23 16:41, Miquel Raynal wrote: > >>>> Describe this new part and provide the RWW flag for it. > >>>> > >>>> There is no public datasheet, but here are the sfdp tables plus base > >>>> testing to show it works. > >>>> > >>>> mx25uw51245g > >>>> c2813a > >>>> macronix > >>>> 53464450080104fd00070114400000ff8701011c900000ff0a0001080001 > >>>> 00ff05000105200100ff84000102340100ff0000000000000000ffffffff > >>>> ffffffffe5208affffffff1f00ff00ff00ff00ffeeffffffffff00ffffff > >>>> 00ff0c2010d800ff00ff87790100821200e27704674630b030b0f4bdd55c > >>>> 000000ff101000200000000000007ca14800000000008888000000000000 > >>>> 00400fd1fff30fd1fff300050090000500b1002b0095002b0096727103b8 > >>>> 727103b80000000090a3188200c069960000000000000000727100987271 > >>>> 00b8727100990000000072710098727100f872710099727100f900000000 > >>>> 00000000011501d0727106d8000086500000060100000000020001030002 > >>>> 00000000060100000000000072060002000000eec0697272717100d8f7f6 > >>>> 000a00001445988043060f0021dcffff > >>>> 047a884cf44d9ffc2a94d3ab37b48c63 /sys/bus/spi/devices/spi0.0/spi-nor/sfdp > >>> > >>> which hash alg was used, was it sha1? No need to resubmnit just for this. > >> > >> Actually git just ignored all the lines starting with '#' > >> like if they were comments and I did not notice... > >> > >> I will amend my commit logs and resend. > >> > >>>> > >>>> 6+0 records in > >>>> 6+0 records out > >>>> Copied 6291456 bytes from qspi_test to address 0x00000000 in flash > >>>> Erased 6291456 bytes from address 0x00000000 in flash > >>>> Copied 6291456 bytes from address 0x00000000 in flash to qspi_read > >>>> 0000000 ffff ffff ffff ffff ffff ffff ffff ffff > >>>> * > >>>> 0600000 > >>>> Copied 6291456 bytes from qspi_test to address 0x00000000 in flash > >>>> Copied 6291456 bytes from address 0x00000000 in flash to qspi_read > >>>> d24a9523db829a0df688f34b8dc76a1383b74024 qspi_test > >>>> d24a9523db829a0df688f34b8dc76a1383b74024 qspi_read > >>>> > >>>> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> > >>>> --- > >>>> drivers/mtd/spi-nor/macronix.c | 4 ++++ > >>>> 1 file changed, 4 insertions(+) > >>>> > >>>> diff --git a/drivers/mtd/spi-nor/macronix.c b/drivers/mtd/spi-nor/macronix.c > >>>> index 6853ec9ae65d..b65d41e5f749 100644 > >>>> --- a/drivers/mtd/spi-nor/macronix.c > >>>> +++ b/drivers/mtd/spi-nor/macronix.c > >>>> @@ -82,6 +82,10 @@ static const struct flash_info macronix_nor_parts[] = { > >>>> { "mx25u51245g", INFO(0xc2253a, 0, 64 * 1024, 1024) > >>>> NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) > >>>> FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, > >>>> + { "mx25uw51245g", INFOB(0xc2813a, 0, 16 * 1024, 1024, 4) > >>> > >>> Sector size and nsectors shall be discovered at parse SFDP time. > >>> Does INFOB(0xc2813a, 0, 0, 0, 4) work for you? > >> > >> I'll check. > >> > >>> > >>>> + PARSE_SFDP > >>> > >>> Yaay > >>> > >>>> + FLAGS(SPI_NOR_RWW) > >>>> + FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, > >>> > >>> Is SPI_NOR_4B_OPCODES flag really needed? > >> > >> I have no idea, I took that from older code. > >> > >> Jaime, what do you think? > > I think Tudor hopes that SFDP table could determine how many address bytes. > > No, no. > > :) and hope and programming don't get along. > > Does this flash define the 4bait table? Can you add a print in > parse_4bait table and check if SNOR_F_4B_OPCODES is set? If yes, the > fixup flag is not needed. Alright, will check. > > SNOR_F_4B_OPCODES is an indication that the flash supports dedicated > opcodes for 4byte address, without the need to change the address mode > to 4 byte. When 4B_OPCODES are supported, we prefer not changing the > address mode, because when changing to 4 byte address mode, the state is > kept at reset (or power loss) and flashes might not be able to boot at > lower layers (u-boot for example). Oh yeah I remember. > > So I'd try: > { "mx25uw51245g", INFOB(0xc2813a, 0, 0, 0, 4) > PARSE_SFDP > FLAGS(SPI_NOR_RWW) }, Clear! > > In the future we'd like to add a sfdp-decoder in mtd-utils to decode the > sfdp dump and ease the review and avoid such questions, but we couldn't > allocate the time to implement it up to now. Meh, we're doing it at best > effort, in our spare time. Volunteers? I really like the idea! Would be excellent. Thanks, Miquèl
Hi Tudor, tudor.ambarus@linaro.org wrote on Wed, 29 Mar 2023 12:12:29 +0100: > On 3/29/23 06:48, liao jaime wrote: > > Hi Miquel > > > >> > >> Hi Tudor, > >> > >> tudor.ambarus@linaro.org wrote on Tue, 28 Mar 2023 17:31:46 +0100: > >> > >>> On 3/28/23 16:41, Miquel Raynal wrote: > >>>> Describe this new part and provide the RWW flag for it. > >>>> > >>>> There is no public datasheet, but here are the sfdp tables plus base > >>>> testing to show it works. > >>>> > >>>> mx25uw51245g > >>>> c2813a > >>>> macronix > >>>> 53464450080104fd00070114400000ff8701011c900000ff0a0001080001 > >>>> 00ff05000105200100ff84000102340100ff0000000000000000ffffffff > >>>> ffffffffe5208affffffff1f00ff00ff00ff00ffeeffffffffff00ffffff > >>>> 00ff0c2010d800ff00ff87790100821200e27704674630b030b0f4bdd55c > >>>> 000000ff101000200000000000007ca14800000000008888000000000000 > >>>> 00400fd1fff30fd1fff300050090000500b1002b0095002b0096727103b8 > >>>> 727103b80000000090a3188200c069960000000000000000727100987271 > >>>> 00b8727100990000000072710098727100f872710099727100f900000000 > >>>> 00000000011501d0727106d8000086500000060100000000020001030002 > >>>> 00000000060100000000000072060002000000eec0697272717100d8f7f6 > >>>> 000a00001445988043060f0021dcffff > >>>> 047a884cf44d9ffc2a94d3ab37b48c63 /sys/bus/spi/devices/spi0.0/spi-nor/sfdp > >>> > >>> which hash alg was used, was it sha1? No need to resubmnit just for this. > >> > >> Actually git just ignored all the lines starting with '#' > >> like if they were comments and I did not notice... > >> > >> I will amend my commit logs and resend. > >> > >>>> > >>>> 6+0 records in > >>>> 6+0 records out > >>>> Copied 6291456 bytes from qspi_test to address 0x00000000 in flash > >>>> Erased 6291456 bytes from address 0x00000000 in flash > >>>> Copied 6291456 bytes from address 0x00000000 in flash to qspi_read > >>>> 0000000 ffff ffff ffff ffff ffff ffff ffff ffff > >>>> * > >>>> 0600000 > >>>> Copied 6291456 bytes from qspi_test to address 0x00000000 in flash > >>>> Copied 6291456 bytes from address 0x00000000 in flash to qspi_read > >>>> d24a9523db829a0df688f34b8dc76a1383b74024 qspi_test > >>>> d24a9523db829a0df688f34b8dc76a1383b74024 qspi_read > >>>> > >>>> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> > >>>> --- > >>>> drivers/mtd/spi-nor/macronix.c | 4 ++++ > >>>> 1 file changed, 4 insertions(+) > >>>> > >>>> diff --git a/drivers/mtd/spi-nor/macronix.c b/drivers/mtd/spi-nor/macronix.c > >>>> index 6853ec9ae65d..b65d41e5f749 100644 > >>>> --- a/drivers/mtd/spi-nor/macronix.c > >>>> +++ b/drivers/mtd/spi-nor/macronix.c > >>>> @@ -82,6 +82,10 @@ static const struct flash_info macronix_nor_parts[] = { > >>>> { "mx25u51245g", INFO(0xc2253a, 0, 64 * 1024, 1024) > >>>> NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) > >>>> FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, > >>>> + { "mx25uw51245g", INFOB(0xc2813a, 0, 16 * 1024, 1024, 4) > >>> > >>> Sector size and nsectors shall be discovered at parse SFDP time. > >>> Does INFOB(0xc2813a, 0, 0, 0, 4) work for you? > >> > >> I'll check. > >> > >>> > >>>> + PARSE_SFDP > >>> > >>> Yaay > >>> > >>>> + FLAGS(SPI_NOR_RWW) > >>>> + FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, > >>> > >>> Is SPI_NOR_4B_OPCODES flag really needed? > >> > >> I have no idea, I took that from older code. > >> > >> Jaime, what do you think? > > I think Tudor hopes that SFDP table could determine how many address bytes. > > No, no. > > :) and hope and programming don't get along. > > Does this flash define the 4bait table? Can you add a print in > parse_4bait table and check if SNOR_F_4B_OPCODES is set? If yes, the > fixup flag is not needed. > > SNOR_F_4B_OPCODES is an indication that the flash supports dedicated > opcodes for 4byte address, without the need to change the address mode > to 4 byte. When 4B_OPCODES are supported, we prefer not changing the > address mode, because when changing to 4 byte address mode, the state is > kept at reset (or power loss) and flashes might not be able to boot at > lower layers (u-boot for example). The flag is set, no need for hardcoding it. Excellent, I'll prepare the patch. While I was testing I figured out: the bank size calculation happens too early, so if we discover the size with the SFDP table, that won't work. I'll fix it, feel free to squash the patch if you prefer. > > So I'd try: > { "mx25uw51245g", INFOB(0xc2813a, 0, 0, 0, 4) > PARSE_SFDP > FLAGS(SPI_NOR_RWW) }, > > In the future we'd like to add a sfdp-decoder in mtd-utils to decode the > sfdp dump and ease the review and avoid such questions, but we couldn't > allocate the time to implement it up to now. Meh, we're doing it at best > effort, in our spare time. Volunteers? > > Cheers, > ta Thanks, Miquèl
On 3/31/23 20:37, Miquel Raynal wrote: > Hi Tudor, > Hi! > tudor.ambarus@linaro.org wrote on Wed, 29 Mar 2023 12:12:29 +0100: > >> On 3/29/23 06:48, liao jaime wrote: >>> Hi Miquel >>> >>>> >>>> Hi Tudor, >>>> >>>> tudor.ambarus@linaro.org wrote on Tue, 28 Mar 2023 17:31:46 +0100: >>>> >>>>> On 3/28/23 16:41, Miquel Raynal wrote: >>>>>> Describe this new part and provide the RWW flag for it. >>>>>> >>>>>> There is no public datasheet, but here are the sfdp tables plus base >>>>>> testing to show it works. >>>>>> >>>>>> mx25uw51245g >>>>>> c2813a >>>>>> macronix >>>>>> 53464450080104fd00070114400000ff8701011c900000ff0a0001080001 >>>>>> 00ff05000105200100ff84000102340100ff0000000000000000ffffffff >>>>>> ffffffffe5208affffffff1f00ff00ff00ff00ffeeffffffffff00ffffff >>>>>> 00ff0c2010d800ff00ff87790100821200e27704674630b030b0f4bdd55c >>>>>> 000000ff101000200000000000007ca14800000000008888000000000000 >>>>>> 00400fd1fff30fd1fff300050090000500b1002b0095002b0096727103b8 >>>>>> 727103b80000000090a3188200c069960000000000000000727100987271 >>>>>> 00b8727100990000000072710098727100f872710099727100f900000000 >>>>>> 00000000011501d0727106d8000086500000060100000000020001030002 >>>>>> 00000000060100000000000072060002000000eec0697272717100d8f7f6 >>>>>> 000a00001445988043060f0021dcffff >>>>>> 047a884cf44d9ffc2a94d3ab37b48c63 /sys/bus/spi/devices/spi0.0/spi-nor/sfdp >>>>> >>>>> which hash alg was used, was it sha1? No need to resubmnit just for this. >>>> >>>> Actually git just ignored all the lines starting with '#' >>>> like if they were comments and I did not notice... >>>> >>>> I will amend my commit logs and resend. >>>> >>>>>> >>>>>> 6+0 records in >>>>>> 6+0 records out >>>>>> Copied 6291456 bytes from qspi_test to address 0x00000000 in flash >>>>>> Erased 6291456 bytes from address 0x00000000 in flash >>>>>> Copied 6291456 bytes from address 0x00000000 in flash to qspi_read >>>>>> 0000000 ffff ffff ffff ffff ffff ffff ffff ffff >>>>>> * >>>>>> 0600000 >>>>>> Copied 6291456 bytes from qspi_test to address 0x00000000 in flash >>>>>> Copied 6291456 bytes from address 0x00000000 in flash to qspi_read >>>>>> d24a9523db829a0df688f34b8dc76a1383b74024 qspi_test >>>>>> d24a9523db829a0df688f34b8dc76a1383b74024 qspi_read >>>>>> >>>>>> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> >>>>>> --- >>>>>> drivers/mtd/spi-nor/macronix.c | 4 ++++ >>>>>> 1 file changed, 4 insertions(+) >>>>>> >>>>>> diff --git a/drivers/mtd/spi-nor/macronix.c b/drivers/mtd/spi-nor/macronix.c >>>>>> index 6853ec9ae65d..b65d41e5f749 100644 >>>>>> --- a/drivers/mtd/spi-nor/macronix.c >>>>>> +++ b/drivers/mtd/spi-nor/macronix.c >>>>>> @@ -82,6 +82,10 @@ static const struct flash_info macronix_nor_parts[] = { >>>>>> { "mx25u51245g", INFO(0xc2253a, 0, 64 * 1024, 1024) >>>>>> NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) >>>>>> FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, >>>>>> + { "mx25uw51245g", INFOB(0xc2813a, 0, 16 * 1024, 1024, 4) >>>>> >>>>> Sector size and nsectors shall be discovered at parse SFDP time. >>>>> Does INFOB(0xc2813a, 0, 0, 0, 4) work for you? >>>> >>>> I'll check. >>>> >>>>> >>>>>> + PARSE_SFDP >>>>> >>>>> Yaay >>>>> >>>>>> + FLAGS(SPI_NOR_RWW) >>>>>> + FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, >>>>> >>>>> Is SPI_NOR_4B_OPCODES flag really needed? >>>> >>>> I have no idea, I took that from older code. >>>> >>>> Jaime, what do you think? >>> I think Tudor hopes that SFDP table could determine how many address bytes. >> >> No, no. >> >> :) and hope and programming don't get along. >> >> Does this flash define the 4bait table? Can you add a print in >> parse_4bait table and check if SNOR_F_4B_OPCODES is set? If yes, the >> fixup flag is not needed. >> >> SNOR_F_4B_OPCODES is an indication that the flash supports dedicated >> opcodes for 4byte address, without the need to change the address mode >> to 4 byte. When 4B_OPCODES are supported, we prefer not changing the >> address mode, because when changing to 4 byte address mode, the state is >> kept at reset (or power loss) and flashes might not be able to boot at >> lower layers (u-boot for example). > > The flag is set, no need for hardcoding it. > > Excellent, I'll prepare the patch. > > While I was testing I figured out: the bank size calculation happens > too early, so if we discover the size with the SFDP table, that won't > work. I'll fix it, feel free to squash the patch if you prefer. > Indeed. Michael or me are going to fix the n_sectors and sector_size handling soon. Separate patch is fine, I don't change git history unless really needed.
diff --git a/drivers/mtd/spi-nor/macronix.c b/drivers/mtd/spi-nor/macronix.c index 6853ec9ae65d..b65d41e5f749 100644 --- a/drivers/mtd/spi-nor/macronix.c +++ b/drivers/mtd/spi-nor/macronix.c @@ -82,6 +82,10 @@ static const struct flash_info macronix_nor_parts[] = { { "mx25u51245g", INFO(0xc2253a, 0, 64 * 1024, 1024) NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, + { "mx25uw51245g", INFOB(0xc2813a, 0, 16 * 1024, 1024, 4) + PARSE_SFDP + FLAGS(SPI_NOR_RWW) + FIXUP_FLAGS(SPI_NOR_4B_OPCODES) }, { "mx25v8035f", INFO(0xc22314, 0, 64 * 1024, 16) NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
Describe this new part and provide the RWW flag for it. There is no public datasheet, but here are the sfdp tables plus base testing to show it works. mx25uw51245g c2813a macronix 53464450080104fd00070114400000ff8701011c900000ff0a0001080001 00ff05000105200100ff84000102340100ff0000000000000000ffffffff ffffffffe5208affffffff1f00ff00ff00ff00ffeeffffffffff00ffffff 00ff0c2010d800ff00ff87790100821200e27704674630b030b0f4bdd55c 000000ff101000200000000000007ca14800000000008888000000000000 00400fd1fff30fd1fff300050090000500b1002b0095002b0096727103b8 727103b80000000090a3188200c069960000000000000000727100987271 00b8727100990000000072710098727100f872710099727100f900000000 00000000011501d0727106d8000086500000060100000000020001030002 00000000060100000000000072060002000000eec0697272717100d8f7f6 000a00001445988043060f0021dcffff 047a884cf44d9ffc2a94d3ab37b48c63 /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 6+0 records in 6+0 records out Copied 6291456 bytes from qspi_test to address 0x00000000 in flash Erased 6291456 bytes from address 0x00000000 in flash Copied 6291456 bytes from address 0x00000000 in flash to qspi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0600000 Copied 6291456 bytes from qspi_test to address 0x00000000 in flash Copied 6291456 bytes from address 0x00000000 in flash to qspi_read d24a9523db829a0df688f34b8dc76a1383b74024 qspi_test d24a9523db829a0df688f34b8dc76a1383b74024 qspi_read Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> --- drivers/mtd/spi-nor/macronix.c | 4 ++++ 1 file changed, 4 insertions(+)