[PATCH] mtd: spi-nor: Add support for Dosilicon DS25Q4CB/DS25Q4DN

[PATCH] mtd: spi-nor: Add support for Dosilicon DS25Q4CB/DS25Q4DN

[Ssunk]

Add support for DS25Q4CB and DS25Q4DN

Signed-off-by: Ssunk <ssunkkan@gmail.com>
---
 drivers/mtd/spi/Kconfig       | 5 +++++
 drivers/mtd/spi/spi-nor-ids.c | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/mtd/spi/Kconfig b/drivers/mtd/spi/Kconfig
index ca60a425ba3..f32a7b015cb 100644
--- a/drivers/mtd/spi/Kconfig
+++ b/drivers/mtd/spi/Kconfig
@@ -228,6 +228,11 @@ config SPI_FLASH_XMC
 	  Add support for various XMC (Wuhan Xinxin Semiconductor
 	  Manufacturing Corp.) SPI flash chips (XM25xxx)
 
+config SPI_FLASH_DOSILICON
+	bool "Dosilocon SPI flash support"
+	help
+	  Add support for various Dosilocon SPI flash chips (DS25xxx)
+
 config SPI_FLASH_XTX
 	bool "XTX SPI flash support"
 	help
diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-nor-ids.c
index 0383175beb5..c6348d60f89 100644
--- a/drivers/mtd/spi/spi-nor-ids.c
+++ b/drivers/mtd/spi/spi-nor-ids.c
@@ -648,6 +648,13 @@ const struct flash_info spi_nor_ids[] = {
 	/* Zbit Semiconductor Inc. */
 	{ INFO("zb25vq128", 0x5e4018, 0, 64 * 1024, 256,
 	       SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
+#endif
+#ifdef CONFIG_SPI_FLASH_DOSILICON
+	/* Dosilicon Co., Ltd*/
+	{ INFO("DS25Q4CB", 0xe5301a, 0, 64 * 1024, 1024, SECT_4K | SPI_NOR_DUAL_READ |
+	       SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
+	{ INFO("DS25Q4DN", 0xe5301b, 0, 64 * 1024, 2048, SECT_4K | SPI_NOR_DUAL_READ |
+           SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
 #endif
 	{ },
 };
-- 
2.34.1

Re: [PATCH] mtd: spi-nor: Add support for Dosilicon DS25Q4CB/DS25Q4DN

[Ssunk]

Hi all,

Gentle ping — any comments on this patch?

Link: https://lore.kernel.org/u-boot/20250827122403.20159-1-ssunkkan@gmail.com/

Thanks,
Ssunk

Re: [PATCH v3] spi-nor: add support for XM25QH01D

[Ssunk]

Hi all,

Just a gentle ping on this patch below.
Please let me know if any further changes are needed.

Thanks,
Ssunk

Re: [PATCH v3] spi-nor: add support for XM25QH01D

[Marek Vasut]

On 1/29/26 1:26 PM, Ssunk wrote:
> Hi all,
> 
> Just a gentle ping on this patch below.
> Please let me know if any further changes are needed.
Adjusting the CC list slightly, this is really up to the SPI NOR 
maintainers.

Re: [PATCH] mtd: spi-nor: Add support for Dosilicon DS25Q4CB/DS25Q4DN

[Ssunk]

Hi all,

Gentle ping on this patch.
Please let me know if there are any comments or changes needed.

Thanks,
Ssunk

Re: [PATCH] mtd: spi-nor: Add support for Dosilicon DS25Q4CB/DS25Q4DN

[Marek Vasut]

On 1/29/26 1:33 PM, Ssunk wrote:
> Hi all,
> 
> Gentle ping on this patch.
> Please let me know if there are any comments or changes needed.
Adjusting the CC list slightly, this is really up to the SPI NOR 
maintainers.

Re: [PATCH v2] spi-nor: add support for XM25QH01D

[Ssunk]

Hello Marek,

>I'm sorry, my original suggestion was unclear.
>
>If you want to sort the whole XMC part list, then please do 2-patch 
>series, sort the list in patch 1/2 and then add the chip in 2/2 .

Thanks for the clarification!

Actually, I don’t intend to sort the whole XMC flash list — I only want to
add the new XM25QH01D entry. Would it be acceptable if I just place it in the
appropriate position without reordering the rest of the list?

Best regards,
Ssunk

>On 11/3/25 12:12 PM, Ssunk wrote:
>> Add support for the XMC XM25QH01D SPI NOR flash.
>> 
>> This device has 1Gbit (128MB) capacity, with 64KB sectors and
>> supports 4KB erase, dual and quad read modes, and 4-byte opcodes.
>> Datasheet link: https://www.xmcwh.com/uploads/958/XM25QH01D_Ver1.0.pdf
>> 
>> Changes in v2:
>> - Keep the list sorted of XMC
>> 
>> Signed-off-by: Ssunk <ssunkkan@gmail.com>
>> ---
>>   drivers/mtd/spi/spi-nor-ids.c | 5 +++--
>>   1 file changed, 3 insertions(+), 2 deletions(-)
>> 
>> diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-nor-ids.c
>> index 0383175beb5..03596d38e6e 100644
>> --- a/drivers/mtd/spi/spi-nor-ids.c
>> +++ b/drivers/mtd/spi/spi-nor-ids.c
>> @@ -595,13 +595,14 @@ const struct flash_info spi_nor_ids[] = {
>>   #endif
>>   #ifdef CONFIG_SPI_FLASH_XMC
>>   	/* XMC (Wuhan Xinxin Semiconductor Manufacturing Corp.) */
>> +	{ INFO("XM25QH01D", 0x204021, 0, 64 * 1024, 2048, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
>>   	{ INFO("XM25QH64A", 0x207017, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
>>   	{ INFO("XM25QH64C", 0x204017, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
>>   	{ INFO("XM25QH128A", 0x207018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
>> -	{ INFO("XM25QU128C", 0x204118, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
>>   	{ INFO("XM25QH256C", 0x204019, 0, 64 * 1024, 512, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
>> -	{ INFO("XM25QU256C", 0x204119, 0, 64 * 1024, 512, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
>>   	{ INFO("XM25QH512C", 0x204020, 0, 64 * 1024, 1024, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
>> +	{ INFO("XM25QU128C", 0x204118, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
>> +	{ INFO("XM25QU256C", 0x204119, 0, 64 * 1024, 512, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
>>   	{ INFO("XM25QU512C", 0x204120, 0, 64 * 1024, 1024, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
>I'm sorry, my original suggestion was unclear.
>
>If you want to sort the whole XMC part list, then please do 2-patch 
>series, sort the list in patch 1/2 and then add the chip in 2/2 .

Re: [PATCH v2] spi-nor: add support for XM25QH01D

[Marek Vasut]

On 11/4/25 12:03 PM, Ssunk wrote:
> Hello Marek,

Hi,

>> I'm sorry, my original suggestion was unclear.
>>
>> If you want to sort the whole XMC part list, then please do 2-patch
>> series, sort the list in patch 1/2 and then add the chip in 2/2 .
> 
> Thanks for the clarification!
> 
> Actually, I don’t intend to sort the whole XMC flash list — I only want to
> add the new XM25QH01D entry. Would it be acceptable if I just place it in the
> appropriate position without reordering the rest of the list?
Sure, this is fine by me. But please also try to get input from the 
subsystem maintainers.

[PATCH v3] spi-nor: add support for XM25QH01D

[Ssunk]

Hi Marek,

Thanks for the clarification.

As discussed, I am not reordering the XMC flash list. This v3 only adds
the new XM25QH01D entry in the appropriate alphabetical position, without
touching the rest of the list.

I welcome feedback from the SPI-NOR subsystem maintainers as well.

Thanks again for the guidance!

Regards,
Ssunk


---

[PATCH v3] spi-nor: add support for XM25QH01D

Add support for the XMC XM25QH01D SPI NOR flash.

This device has 1Gbit (128MB) capacity, with 64KB sectors and supports
4KB erase, dual/quad read, and 4-byte opcodes.
Datasheet:
  https://www.xmcwh.com/uploads/958/XM25QH01D_Ver1.0.pdf

Changes in v3:
- Do NOT reorder the XMC flash list (per Marek’s feedback)
- Only add the XM25QH01D entry in the correct sorted position

Changes in v2:
- Attempted to reorder the list; reverted in v3

Signed-off-by: Ssunk <ssunkkan@gmail.com>
---
 drivers/mtd/spi/spi-nor-ids.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-nor-ids.c
index 0383175beb5..00f78c2aaae 100644
--- a/drivers/mtd/spi/spi-nor-ids.c
+++ b/drivers/mtd/spi/spi-nor-ids.c
@@ -595,6 +595,7 @@ const struct flash_info spi_nor_ids[] = {
 #endif
 #ifdef CONFIG_SPI_FLASH_XMC
 	/* XMC (Wuhan Xinxin Semiconductor Manufacturing Corp.) */
+	{ INFO("XM25QH01D", 0x204021, 0, 64 * 1024, 2048, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
 	{ INFO("XM25QH64A", 0x207017, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ INFO("XM25QH64C", 0x204017, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
 	{ INFO("XM25QH128A", 0x207018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
-- 
2.34.1

Re: [PATCH v3] spi-nor: add support for XM25QH01D

[Ssunk]

Hi Marek,

Just a gentle ping on this patch below.
Please let me know if any further changes are needed.

Thanks,
Ssunk

Re: [PATCH v3] spi-nor: add support for XM25QH01D

[Marek Vasut]

On 1/29/26 1:12 PM, Ssunk wrote:
> Hi Marek,
> 
> Just a gentle ping on this patch below.
> Please let me know if any further changes are needed.

Adjusting the CC list slightly, this is really up to the SPI NOR 
maintainers.