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Reviewed-by: Tudor Ambarus Signed-off-by: Haibo Chen --- drivers/mtd/spi-nor/micron-st.c | 70 ++++++++++++++++++++-----------------= ---- 1 file changed, 35 insertions(+), 35 deletions(-) diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-s= t.c index 187239ccd549510c6e9a6eacf4ae41158287e077..92eb14ca76c57f29ece1edb3fe6= 52c56d1c2888f 100644 --- a/drivers/mtd/spi-nor/micron-st.c +++ b/drivers/mtd/spi-nor/micron-st.c @@ -127,6 +127,38 @@ static int micron_st_nor_set_octal_dtr(struct spi_nor = *nor, bool enable) micron_st_nor_octal_dtr_dis(nor); } =20 +static int micron_st_nor_four_die_late_init(struct spi_nor *nor) +{ + struct spi_nor_flash_parameter *params =3D nor->params; + + params->die_erase_opcode =3D SPINOR_OP_MT_DIE_ERASE; + params->n_dice =3D 4; + + /* + * Unfortunately the die erase opcode does not have a 4-byte opcode + * correspondent for these flashes. The SFDP 4BAIT table fails to + * consider the die erase too. We're forced to enter in the 4 byte + * address mode in order to benefit of the die erase. + */ + return spi_nor_set_4byte_addr_mode(nor, true); +} + +static int micron_st_nor_two_die_late_init(struct spi_nor *nor) +{ + struct spi_nor_flash_parameter *params =3D nor->params; + + params->die_erase_opcode =3D SPINOR_OP_MT_DIE_ERASE; + params->n_dice =3D 2; + + /* + * Unfortunately the die erase opcode does not have a 4-byte opcode + * correspondent for these flashes. The SFDP 4BAIT table fails to + * consider the die erase too. We're forced to enter in the 4 byte + * address mode in order to benefit of the die erase. + */ + return spi_nor_set_4byte_addr_mode(nor, true); +} + static void mt35xu512aba_default_init(struct spi_nor *nor) { nor->params->set_octal_dtr =3D micron_st_nor_set_octal_dtr; @@ -193,48 +225,16 @@ static const struct spi_nor_fixups mt25qu512a_fixups = =3D { .post_bfpt =3D mt25qu512a_post_bfpt_fixup, }; =20 -static int st_nor_four_die_late_init(struct spi_nor *nor) -{ - struct spi_nor_flash_parameter *params =3D nor->params; - - params->die_erase_opcode =3D SPINOR_OP_MT_DIE_ERASE; - params->n_dice =3D 4; - - /* - * Unfortunately the die erase opcode does not have a 4-byte opcode - * correspondent for these flashes. The SFDP 4BAIT table fails to - * consider the die erase too. We're forced to enter in the 4 byte - * address mode in order to benefit of the die erase. - */ - return spi_nor_set_4byte_addr_mode(nor, true); -} - -static int st_nor_two_die_late_init(struct spi_nor *nor) -{ - struct spi_nor_flash_parameter *params =3D nor->params; - - params->die_erase_opcode =3D SPINOR_OP_MT_DIE_ERASE; - params->n_dice =3D 2; - - /* - * Unfortunately the die erase opcode does not have a 4-byte opcode - * correspondent for these flashes. The SFDP 4BAIT table fails to - * consider the die erase too. We're forced to enter in the 4 byte - * address mode in order to benefit of the die erase. - */ - return spi_nor_set_4byte_addr_mode(nor, true); -} - static const struct spi_nor_fixups n25q00_fixups =3D { - .late_init =3D st_nor_four_die_late_init, + .late_init =3D micron_st_nor_four_die_late_init, }; =20 static const struct spi_nor_fixups mt25q01_fixups =3D { - .late_init =3D st_nor_two_die_late_init, + .late_init =3D micron_st_nor_two_die_late_init, }; =20 static const struct spi_nor_fixups mt25q02_fixups =3D { - .late_init =3D st_nor_four_die_late_init, + .late_init =3D micron_st_nor_four_die_late_init, }; =20 static const struct flash_info st_nor_parts[] =3D { --=20 2.34.1 From nobody Sun Feb 8 07:21:46 2026 Received: from PA4PR04CU001.outbound.protection.outlook.com (mail-francecentralazon11013032.outbound.protection.outlook.com [40.107.162.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7E82E2E0914 for ; 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With this, we can also remove flash_info->size if chip has SFDP. Signed-off-by: Haibo Chen --- drivers/mtd/spi-nor/micron-st.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-s= t.c index 92eb14ca76c57f29ece1edb3fe652c56d1c2888f..81a9bead1434056cce0893c97bd= 35ea248c15894 100644 --- a/drivers/mtd/spi-nor/micron-st.c +++ b/drivers/mtd/spi-nor/micron-st.c @@ -159,11 +159,6 @@ static int micron_st_nor_two_die_late_init(struct spi_= nor *nor) return spi_nor_set_4byte_addr_mode(nor, true); } =20 -static void mt35xu512aba_default_init(struct spi_nor *nor) -{ - nor->params->set_octal_dtr =3D micron_st_nor_set_octal_dtr; -} - static int mt35xu512aba_post_sfdp_fixup(struct spi_nor *nor) { /* Set the Fast Read settings. */ @@ -187,7 +182,6 @@ static int mt35xu512aba_post_sfdp_fixup(struct spi_nor = *nor) } =20 static const struct spi_nor_fixups mt35xu512aba_fixups =3D { - .default_init =3D mt35xu512aba_default_init, .post_sfdp =3D mt35xu512aba_post_sfdp_fixup, }; =20 @@ -635,6 +629,8 @@ static int micron_st_nor_late_init(struct spi_nor *nor) if (!params->set_4byte_addr_mode) params->set_4byte_addr_mode =3D spi_nor_set_4byte_addr_mode_wren_en4b_ex= 4b; 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Signed-off-by: Haibo Chen --- 1) This mt35xu512aba is populated on the imx943-evk board, was tested at 200MHz using nxp,imx94-xspi SPI controller. 2) root@imx943evk:~# cat /sys/bus/spi/devices/spi8.0/spi-nor/jedec_id 2c5b1a root@imx943evk:~# cat /sys/bus/spi/devices/spi8.0/spi-nor/manufacturer micron root@imx943evk:~# hexdump -Cv /sys/bus/spi/devices/spi8.0/spi-nor/sfdp 00000000 53 46 44 50 0a 01 03 ff 00 08 01 17 30 00 00 ff |SFDP.......= .0...| 00000010 84 00 01 02 90 00 00 ff 05 01 01 06 a0 00 00 ff |...........= .....| 00000020 0a 00 01 08 b0 00 00 ff ff ff ff ff ff ff ff ff |...........= .....| 00000030 e5 20 8a ff ff ff ff 1f 00 00 00 00 00 00 00 00 |. .........= .....| 00000040 ee ff ff ff ff ff 00 00 ff ff 00 00 0c 20 11 d8 |...........= .. ..| 00000050 0f 52 00 00 39 61 99 00 87 8e 03 d3 ac a1 27 3d |.R..9a.....= ...'=3D| 00000060 7a 75 7a 75 fb bd d5 5c 00 00 70 ff 81 50 f8 a1 |zuzu...\..p= ..P..| 00000070 2f cb 27 8b 00 00 04 01 00 06 01 00 ff ff ff 8e |/.'........= .....| 00000080 00 00 00 00 00 00 00 00 00 00 00 00 ff ff ff ff |...........= .....| 00000090 43 0e ff ff 21 dc 5c ff ff ff ff ff ff ff ff ff |C...!.\....= .....| 000000a0 00 0b 80 9e b1 81 b5 85 00 f0 ff 9f 00 0a 00 00 |...........= .....| 000000b0 00 0a 1a 88 10 00 00 00 ff ff ff ff ff ff ff ff |...........= .....| 000000c0 00 00 06 01 00 00 00 00 14 01 81 03 00 00 00 00 |...........= .....| 000000d0 root@imx943evk:~# sha256sum /sys/bus/spi/devices/spi8.0/spi-nor/sfdp 809cbdfc57ae56771e017ff7bfdae7122afcbcbb238f2502420cfe3b2fe20d11 /sys/b= us/spi/devices/spi8.0/spi-nor/sfdp 3) root@imx943evk:~# cat /sys/kernel/debug/spi-nor/spi8.0/capabilities Supported read modes by the flash 1S-1S-1S opcode 0x13 mode cycles 0 dummy cycles 0 1S-1S-8S opcode 0x7c mode cycles 1 dummy cycles 7 1S-8S-8S opcode 0xcc mode cycles 1 dummy cycles 15 8D-8D-8D opcode 0xfd mode cycles 0 dummy cycles 20 Supported page program modes by the flash 1S-1S-1S opcode 0x12 8D-8D-8D opcode 0x12 root@imx943evk:~# cat /sys/kernel/debug/spi-nor/spi8.0/params name (null) id 2c 5b 1a 10 41 00 size 64.0 MiB write size 1 page size 256 address nbytes 4 flags 4B_OPCODES | HAS_4BAIT | HAS_16BIT_SR | IO_MODE_EN_VOLAT= ILE | SOFT_RESET opcodes read 0xfd dummy cycles 20 erase 0xdc program 0x12 8D extension repeat protocols read 8D-8D-8D write 8D-8D-8D register 8D-8D-8D erase commands 21 (4.00 KiB) [1] 5c (32.0 KiB) [2] dc (128 KiB) [3] c7 (64.0 MiB) sector map region (in hex) | erase mask | overlaid ------------------+------------+---------- 00000000-03ffffff | [ 3] | no 4) root@imx943evk:~# dd if=3D/dev/urandom of=3D./spi_test bs=3D1M count=3D2 2+0 records in 2+0 records out 2097152 bytes (2.1 MB, 2.0 MiB) copied, 0.0213893 s, 98.0 MB/s root@imx943evk:~# mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash root@imx943evk:~# mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read root@imx943evk:~# hexdump spi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0200000 root@imx943evk:~# sha256sum spi_read 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_re= ad root@imx943evk:~# mtd_debug write /dev/mtd0 0 2097152 spi_test Copied 2097152 bytes from spi_test to address 0x00000000 in flash root@imx943evk:~# mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read root@imx943evk:~# sha256sum spi* f7d59270621c04aac29df9fc1742d0a0882047c618833ecf1577a57d109060ab spi_re= ad f7d59270621c04aac29df9fc1742d0a0882047c618833ecf1577a57d109060ab spi_te= st root@imx943evk:~# mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash root@imx943evk:~# mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read root@imx943evk:~# sha256sum spi* 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_re= ad f7d59270621c04aac29df9fc1742d0a0882047c618833ecf1577a57d109060ab spi_te= st root@imx943evk:~# hexdump spi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0200000 root@imx943evk:~# mtd_debug info /dev/mtd0 mtd.type =3D MTD_NORFLASH mtd.flags =3D MTD_CAP_NORFLASH mtd.size =3D 67108864 (64M) mtd.erasesize =3D 131072 (128K) mtd.writesize =3D 1 mtd.oobsize =3D 0 regions =3D 0 root@imx943evk:~# mtd_debug write /dev/mtd0 0 2097152 spi_test Copied 2097152 bytes from spi_test to address 0x00000000 in flash root@imx943evk:~# mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read root@imx943evk:~# hexdump spi_read -n 20 0000000 f3af 8ec6 388f 56a7 4b69 0859 7bde 910b 0000010 ea09 0762 0000014 root@imx943evk:~# flash_erase /dev/mtd0 0 0 Erasing 65536 Kibyte @ 0 -- 100 % complete root@imx943evk:~# mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read root@imx943evk:~# hexdump spi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0200000 --- drivers/mtd/spi-nor/micron-st.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-s= t.c index 81a9bead1434056cce0893c97bd35ea248c15894..4cfa89b0fc3dcc16fe47fc58c04= 3971f4c474ba4 100644 --- a/drivers/mtd/spi-nor/micron-st.c +++ b/drivers/mtd/spi-nor/micron-st.c @@ -187,14 +187,11 @@ static const struct spi_nor_fixups mt35xu512aba_fixup= s =3D { =20 static const struct flash_info micron_nor_parts[] =3D { { + /* MT35XU512ABA */ .id =3D SNOR_ID(0x2c, 0x5b, 0x1a), - .name =3D "mt35xu512aba", .sector_size =3D SZ_128K, - .size =3D SZ_64M, - .no_sfdp_flags =3D SECT_4K | SPI_NOR_OCTAL_READ | - SPI_NOR_OCTAL_DTR_READ | SPI_NOR_OCTAL_DTR_PP, .mfr_flags =3D USE_FSR, - .fixup_flags =3D SPI_NOR_4B_OPCODES | SPI_NOR_IO_MODE_EN_VOLATILE, + .fixup_flags =3D SPI_NOR_IO_MODE_EN_VOLATILE, .fixups =3D &mt35xu512aba_fixups, }, { .id =3D SNOR_ID(0x2c, 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SFDP contain the wrong size, so define the size dierctly in the flash info. And it also support 8D-8D-8D mode, but SFDP lack SNOR_F_IO_MODE_EN_VOLATILE, so add this fixup flags here. Link: https://datasheet.octopart.com/MT35XU02GCBA1G12-0AAT-Micron-datasheet= -138896808.pdf Signed-off-by: Haibo Chen --- 1) This mt35xu01gbba is populated on the imx95-19x19-evk board, was tested at 200MHz using nxp,imx95-fspi SPI controller. 2) root@imx95evk:~# cat /sys/bus/spi/devices/spi1.0/spi-nor/jedec_id 2c5b1b root@imx95evk:~# cat /sys/bus/spi/devices/spi1.0/spi-nor/manufacturer micron root@imx95evk:~# hexdump -Cv /sys/bus/spi/devices/spi1.0/spi-nor/sfdp 00000000 53 46 44 50 0a 01 03 ff 00 08 01 17 30 00 00 ff |SFDP.......= .0...| 00000010 84 00 01 02 90 00 00 ff 05 01 01 06 a0 00 00 ff |...........= .....| 00000020 0a 00 01 08 b0 00 00 ff ff ff ff ff ff ff ff ff |...........= .....| 00000030 e5 20 8a ff ff ff ff 3f 00 00 00 00 00 00 00 00 |. .....?...= .....| 00000040 ee ff ff ff ff ff 00 00 ff ff 00 00 0c 20 11 d8 |...........= .. ..| 00000050 0f 52 00 00 39 61 99 00 87 8e 03 d3 ac a1 27 3d |.R..9a.....= ...'=3D| 00000060 7a 75 7a 75 fb bd d5 5c 00 00 70 ff 81 50 f8 a1 |zuzu...\..p= ..P..| 00000070 2f cb 27 8b 00 00 04 01 00 06 01 00 ff ff ff 8e |/.'........= .....| 00000080 00 00 00 00 00 00 00 00 00 00 00 00 ff ff ff ff |...........= .....| 00000090 43 0e ff ff 21 dc 5c ff ff ff ff ff ff ff ff ff |C...!.\....= .....| 000000a0 00 0b 80 9e b1 81 b5 85 00 f0 ff 9f 00 0a 00 00 |...........= .....| 000000b0 00 0a 1a 88 10 00 00 00 ff ff ff ff ff ff ff ff |...........= .....| 000000c0 00 00 06 01 00 00 00 00 14 01 81 03 00 00 00 00 |...........= .....| 000000d0 root@imx95evk:~# sha256sum /sys/bus/spi/devices/spi1.0/spi-nor/sfdp 3848f0bd2436d7ca1373cee33f90e09d6479d0f4dc4bfd19f6a082d9e0039495 /sys/b= us/spi/devices/spi1.0/spi-nor/sfdp 3) root@imx95evk:~# cat /sys/kernel/debug/spi-nor/spi1.0/capabilities Supported read modes by the flash 1S-1S-1S opcode 0x13 mode cycles 0 dummy cycles 0 1S-1S-8S opcode 0x7c mode cycles 1 dummy cycles 7 1S-8S-8S opcode 0xcc mode cycles 1 dummy cycles 15 8D-8D-8D opcode 0xfd mode cycles 0 dummy cycles 20 Supported page program modes by the flash 1S-1S-1S opcode 0x12 8D-8D-8D opcode 0x12 root@imx95evk:~# cat /sys/kernel/debug/spi-nor/spi1.0/params name (null) id 2c 5b 1b 10 41 00 size 128 MiB write size 1 page size 256 address nbytes 4 flags 4B_OPCODES | HAS_4BAIT | HAS_16BIT_SR | IO_MODE_EN_VOLAT= ILE | SOFT_RESET opcodes read 0xfd dummy cycles 20 erase 0xdc program 0x12 8D extension repeat protocols read 8D-8D-8D write 8D-8D-8D register 8D-8D-8D erase commands 21 (4.00 KiB) [1] 5c (32.0 KiB) [2] dc (128 KiB) [3] c4 (128 MiB) sector map region (in hex) | erase mask | overlaid ------------------+------------+---------- 00000000-07ffffff | [ 3] | no 4) root@imx95evk:~# dd if=3D/dev/urandom of=3D./spi_test bs=3D1M count=3D2 2+0 records in 2+0 records out 2097152 bytes (2.1 MB, 2.0 MiB) copied, 0.0207974 s, 101 MB/s root@imx95evk:~# mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash root@imx95evk:~# mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read root@imx95evk:~# hexdump spi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0200000 root@imx95evk:~# sha256sum spi_read 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_re= ad root@imx95evk:~# mtd_debug write /dev/mtd0 0 2097152 spi_test Copied 2097152 bytes from spi_test to address 0x00000000 in flash root@imx95evk:~# mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read root@imx95evk:~# sha256sum spi* 57300768c1271d4588b850dcbf4e1400f287f09b2d515eda610890456695b205 spi_re= ad 57300768c1271d4588b850dcbf4e1400f287f09b2d515eda610890456695b205 spi_te= st root@imx95evk:~# mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash root@imx95evk:~# mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read root@imx95evk:~# sha256sum spi* 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_re= ad 57300768c1271d4588b850dcbf4e1400f287f09b2d515eda610890456695b205 spi_te= st root@imx95evk:~# mtd_debug info /dev/mtd0 mtd.type =3D MTD_NORFLASH mtd.flags =3D MTD_CAP_NORFLASH mtd.size =3D 134217728 (128M) mtd.erasesize =3D 131072 (128K) mtd.writesize =3D 1 mtd.oobsize =3D 0 regions =3D 0 root@imx95evk:~# flash_erase /dev/mtd0 0 0 Erasing 131072 Kibyte @ 0 -- 100 % complete root@imx95evk:~# mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read root@imx95evk:~# hexdump spi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0200000 --- drivers/mtd/spi-nor/micron-st.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-s= t.c index 4cfa89b0fc3dcc16fe47fc58c043971f4c474ba4..6d081ec176c37249e5ddb724b61= bd70f68088163 100644 --- a/drivers/mtd/spi-nor/micron-st.c +++ b/drivers/mtd/spi-nor/micron-st.c @@ -185,6 +185,11 @@ static const struct spi_nor_fixups mt35xu512aba_fixups= =3D { .post_sfdp =3D mt35xu512aba_post_sfdp_fixup, }; =20 +static const struct spi_nor_fixups mt35xu01gbba_fixups =3D { + .post_sfdp =3D mt35xu512aba_post_sfdp_fixup, + .late_init =3D micron_st_nor_two_die_late_init, +}; + static const struct flash_info micron_nor_parts[] =3D { { /* MT35XU512ABA */ @@ -193,6 +198,13 @@ static const struct flash_info micron_nor_parts[] =3D { .mfr_flags =3D USE_FSR, .fixup_flags =3D SPI_NOR_IO_MODE_EN_VOLATILE, .fixups =3D &mt35xu512aba_fixups, + }, { + /* MT35XU01GBBA */ + .id =3D SNOR_ID(0x2c, 0x5b, 0x1b), + .sector_size =3D SZ_128K, + .mfr_flags =3D USE_FSR, + .fixup_flags =3D SPI_NOR_IO_MODE_EN_VOLATILE, + .fixups =3D &mt35xu01gbba_fixups, }, { .id =3D SNOR_ID(0x2c, 0x5b, 0x1c), .name =3D "mt35xu02g", --=20 2.34.1 From nobody Sun Feb 8 07:21:46 2026 Received: from AM0PR83CU005.outbound.protection.outlook.com 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2025 14:36:23 +0800 Subject: [PATCH v2 5/5] mtd: spi-nor: micron-st: add comment for mt35xu02gcba Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251112-nor-v2-5-8699383714b9@nxp.com> References: <20251112-nor-v2-0-8699383714b9@nxp.com> In-Reply-To: <20251112-nor-v2-0-8699383714b9@nxp.com> To: Tudor Ambarus , Pratyush Yadav , Michael Walle , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, Haibo Chen , imx@lists.linux.dev X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1762929419; l=1213; i=haibo.chen@nxp.com; s=20250421; h=from:subject:message-id; bh=cKir5GY9MDPVxXpDKgg0UgEtFcz2CrFU9GyO/yNUjDE=; b=L4kCKnU/2O6e/kHQbMqsrHXfWq2n/pGlbh0+fg/Of/x0O88hppd3if63gnI7QMMAb5uRlb1Ue PMb5NL2bjQMAjhY4mmqM81ZuBShaIoJgc/Qnto5ZZLbE4uELQVJcP1f X-Developer-Key: i=haibo.chen@nxp.com; a=ed25519; pk=HR9LLTuVOg3BUNeAf4/FNOIkMaZvuwVJdNrGpvKDKaI= X-ClientProxiedBy: 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According to datasheet, it contain SFDP and support 8D-8D-8D mode. Add comments here, remider to change the code in future if has a chance to test on this chip. Link: https://datasheet.octopart.com/MT35XU02GCBA1G12-0AAT-Micron-datasheet= -138896808.pdf Signed-off-by: Haibo Chen --- drivers/mtd/spi-nor/micron-st.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-s= t.c index 6d081ec176c37249e5ddb724b61bd70f68088163..cc053b4d615ade3f12068618f83= 55779561dce55 100644 --- a/drivers/mtd/spi-nor/micron-st.c +++ b/drivers/mtd/spi-nor/micron-st.c @@ -206,6 +206,12 @@ static const struct flash_info micron_nor_parts[] =3D { .fixup_flags =3D SPI_NOR_IO_MODE_EN_VOLATILE, .fixups =3D &mt35xu01gbba_fixups, }, { + /* + * MT35XU02GCBA contain SFDP, so no need the size + * and no_sfdp_flags here, should similar with + * MT35XU01GBBA, but with 4 dies. If someone can + * test on this chip, can change accordingly. + */ .id =3D SNOR_ID(0x2c, 0x5b, 0x1c), .name =3D "mt35xu02g", .sector_size =3D SZ_128K, --=20 2.34.1