[PATCH v4 0/4] Add support for NXP LPC18xx EEPROM using nvmem

[Ariel D'Alessandro]

Hi Srinivas,

I just realized that these patches (1/4, 2/4) didn't get picked up.
Could you please check this?

Thanks,

El 17/11/15 a las 17:02, Ariel D'Alessandro escribió:
> This patch series adds support for NXP LPC18xx EEPROM memory found in
> NXP LPC185x/3x and LPC435x/3x/2x/1x devices.
> 
> This patchset is based on tag next-20151116 of the linux-next
> repository. It has been successfully tested on a LPC4337 CIAA-NXP
> Board.
> 
> EEPROM notes:
> ------------
> 
> EEPROM size is 16384 bytes and it can be entirely read and 
> written/erased with 1 word (4 bytes) granularity. The last page
> (128 bytes) contains the EEPROM initialization data and is not writable.
> 
> Erase/program time is less than 3ms. The EEPROM device requires a
> ~1500 kHz clock (min 800 kHz, max 1600 kHz) that is generated dividing
> the system bus clock by the division factor, contained in the divider
> register (minus 1 encoded).
> 
> EEPROM will be kept in Power Down mode except during read/write calls.
> 
> Changeset:
> ---------
> v3 -> v4:
> * Added busywait polling for erase/program operation to finish.
> 
> v2 -> v3:
> * Documented 'resets' property in devicetree bindings.
> * Added dynamic power on/off when writing/reading the EEPROM.
> * Added check for aligned offset in EEPROM writes.
> * Properly remove the driver in the reverse order of initialization.
> * Minor fixes.
> 
> v1 -> v2:
> * Moved dt-bindings to be the first patch.
> * Changed compatible name from lpc1850 to lpc1857 as the former doesn't have EEPROM.
> * Fix hardware description which contained SoCs models without EEPROM.
> * Disabled fast_io and changed mdelay for msleep in regmap writes.
> * Replaced BUG_ON() in write function for an -EINVAL return.
> * Add patches for defconfig and devicetree files.
> 
> Thanks,
> 
> Ariel D'Alessandro (4):
>   DT: nvmem: Add NXP LPC18xx EEPROM memory binding documentation
>   nvmem: NXP LPC18xx EEPROM memory NVMEM driver
>   ARM: dts: lpc18xx: add EEPROM memory node
>   ARM: configs: lpc18xx: enable EEPROM NVMEM driver
> 
>  .../devicetree/bindings/nvmem/lpc1857-eeprom.txt   |  28 ++
>  arch/arm/boot/dts/lpc18xx.dtsi                     |  12 +
>  arch/arm/configs/lpc18xx_defconfig                 |   2 +
>  drivers/nvmem/Kconfig                              |   9 +
>  drivers/nvmem/Makefile                             |   2 +
>  drivers/nvmem/lpc18xx_eeprom.c                     | 330 +++++++++++++++++++++
>  6 files changed, 383 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/nvmem/lpc1857-eeprom.txt
>  create mode 100644 drivers/nvmem/lpc18xx_eeprom.c
> 

-- 
Ariel D'Alessandro, VanguardiaSur
www.vanguardiasur.com.ar