-----Original Message----- From: Jagan Teki [mailto:jagannadh.teki@gmail.com] Sent: Friday, August 11, 2017 3:32 PM To: Yogesh Narayan Gaur yogeshnarayan.gaur@nxp.com Cc: u-boot@lists.denx.de; York Sun york.sun@nxp.com Subject: Re: [PATCH] mtd/spi: Add MT35XU512ABA1G12 NOR flash support
On Fri, Aug 11, 2017 at 3:30 PM, Yogesh Narayan Gaur yogeshnarayan.gaur@nxp.com wrote:
-----Original Message----- From: Jagan Teki [mailto:jagannadh.teki@gmail.com] Sent: Friday, August 11, 2017 3:25 PM To: Yogesh Narayan Gaur yogeshnarayan.gaur@nxp.com Cc: u-boot@lists.denx.de; York Sun york.sun@nxp.com Subject: Re: [PATCH] mtd/spi: Add MT35XU512ABA1G12 NOR flash support
On Tue, Aug 1, 2017 at 9:43 AM, Yogesh Gaur yogeshnarayan.gaur@nxp.com wrote:
Add MT35XU512ABA1G12 parameters to NOR flash parameters array. Since the manufactory ID is changed to 0x2C, add it for micron and using it for relevant settings.
The MT35XU512ABA1G12 only supports 1 bit mode and 8 bits. It can't support dual and quad. Supports subsector erase with 4KB granularity, have support of FSR(flag status register) and flash size is 64MB.
drivers/mtd/spi/sf_internal.h | 1 + drivers/mtd/spi/spi_flash.c | 2 ++ drivers/mtd/spi/spi_flash_ids.c | 1 + 3 files changed, 4 insertions(+)
diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h index 839cdbe..f46cb3a 100644 --- a/drivers/mtd/spi/sf_internal.h +++ b/drivers/mtd/spi/sf_internal.h @@ -33,6 +33,7 @@ enum spi_nor_option_flags { /* CFI Manufacture ID's */ #define SPI_FLASH_CFI_MFR_SPANSION 0x01 #define SPI_FLASH_CFI_MFR_STMICRO 0x20 +#define SPI_FLASH_CFI_MFR_MICRON 0x2C
Does this new mfr id from micro? so 0x20 still exists?
On older Micron flash like MT25QU512ABB mfr id still is 0x20 but in newer
flash, MT35X, it's been changed to 0x2c.
OK, so the flash features like quad ennoblements, opcodes remains same? except the mfr?
This flash support single bit and octal bit cmds no dual or quad support. Opcode for read/write/erase and other register operation related cmds are similar to already supported flashes like MT25QU512ABB(n25q512a in existing table). Only mfr id has been modified.
-- Regards Yogesh Gaur.
thanks!
Jagan Teki Free Software Engineer | www.openedev.com U-Boot, Linux | Upstream Maintainer Hyderabad, India.