[U-Boot] [PATCH 0/3][v2] sf: Update spi-nor framework

Prabhakar Kushwaha prabhakar.kushwaha at nxp.com
Fri Dec 29 12:35:30 UTC 2017


Hi Jagan,


> -----Original Message-----
> From: Prabhakar Kushwaha [mailto:prabhakar.kushwaha at nxp.com]
> Sent: Thursday, December 21, 2017 5:43 PM
> To: u-boot at lists.denx.de
> Cc: jagannadh.teki at gmail.com; Poonam Aggrwal
> <poonam.aggrwal at nxp.com>; Suresh Gupta <suresh.gupta at nxp.com>;
> marek.vasut at gmail.com; cyrille.pitchen at wedev4u.fr; Prabhakar Kushwaha
> <prabhakar.kushwaha at nxp.com>
> Subject: [PATCH 0/3][v2] sf: Update spi-nor framework
> 
> SPI-NOR framework currently supports-
>  - (1-1-1, 1-1-2, 1-1-4) read protocols
>  - read latency(dummy bytes) are hardcoded with the assumption
>  that the flash would support it.
>  - No support of mode bits.
>  - No support of flash size above 128Mib
> 
> This patch set add support of 1-2-2, 1-4-4 read protocols.
> It ports Linux commits "mtd: spi-nor: add a stateless method to support
> memory size above 128Mib" and "mtd: spi-nor: parse Serial Flash
> Discoverable Parameters (SFDP) tables". It enables 4byte address opcode
> and run time flash parameters discovery including dummy cycle and mode
> cycle.
> 
> Prabhakar Kushwaha (3):
>   sf: Add support of 1-2-2, 1-4-4 IO READ protocols
>   sf: add method to support memory size above 128Mib
>   sf: parse Serial Flash Discoverable Parameters (SFDP) tables
> 
> Changes for v2: Incorporated Cyrille Pitchen's comments
> 
>  drivers/mtd/spi/sf_internal.h | 231 ++++++++++++++++-
>  drivers/mtd/spi/spi_flash.c   | 589
> +++++++++++++++++++++++++++++++++++++++++-
>  include/spi_flash.h           |   2 +
>  3 files changed, 808 insertions(+), 14 deletions(-)
> 
> --

May I rebase this patch-set on top of your " [PATCH v10 00/27] dm: Generic MTD Subsystem,with SPI-NOR interface" patch-set. 

u-boot-spi.git repo will be good place for the rebase. It will help in merging my patch-set. 

--pk


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