[U-Boot] [PATCH] mtd/spi: Add MT35XU512ABA1G12 NOR flash support

[Yogesh Narayan Gaur]

> -----Original Message-----
> From: Jagan Teki [mailto:jagannadh.teki at gmail.com]
> Sent: Friday, August 11, 2017 3:32 PM
> To: Yogesh Narayan Gaur <yogeshnarayan.gaur at nxp.com>
> Cc: u-boot at lists.denx.de; York Sun <york.sun at 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 at nxp.com> wrote:
> >
> >
> >> -----Original Message-----
> >> From: Jagan Teki [mailto:jagannadh.teki at gmail.com]
> >> Sent: Friday, August 11, 2017 3:25 PM
> >> To: Yogesh Narayan Gaur <yogeshnarayan.gaur at nxp.com>
> >> Cc: u-boot at lists.denx.de; York Sun <york.sun at 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 at 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.