[v6,0/8] Cortina Access Drivers Package 2

This release adds the following drivers and
integrates support  into the Cortina Access
Presidio Engineering Board:

CAxxxx SoC eMMC/SD controller
CAxxxx SoC I2C controller
CAxxxx Soc LED controller
CAxxxx SPI NAND and NOR controller

Changes in v6:
- Add I2C DT binding document

Changes in v5:
- Rebase code basis on v2020.04-rc5 which has
  already incorporated CAxxxx eMMC initial baseline
- Rebase on codebase basis v2020.04-rc5 which already incorporated
 initial baseline of eMMC DT information
- NAND support removed from presidio-asic board DT.

Changes in v4:
- Rename DT compatible name
- Remove uneccessary if-statement to support 8-bit buswidth
- Remove redundant error msg
- Use symbolic constants in switch statement
- Change DT compatiblity name to match change in driver's name
- Remove unused io_ds and fifo_mode fields from DT
- Utilize standard I2C macros from <i2c.h>
- Return ETIMEDOUT in funcs that can timeout
- Return i2c_xfer_init() result to caller of i2c_read() if it
	fails within i2c_read() execution
- Fix misc. style guide conformance issues
- Use printf() to report i2c_xfer() runtime errors
	instead of debug()
- remove unused macros
- remove cortina prefix from macros
- remove use BSS variable
- further cleanup to meet code style guidelines
- add additinal struct comments
- rename DT blink rate symbol
- rename DT blink rate symbol

Changes in v3:
- Fixup syntax issues related to checkpatch.pl cleanup

Changes in v2:
- Add I2C controller
- Add LED controller
- Add SPI NAND and NOR controller

Alex Nemirovsky (3):
  board: presidio-asic: update eMMC DT informatino
  board: presidio-asic: Add I2C support
  board: presidio-asic: Add SPI NOR support

Arthur Li (2):
  mmc: ca_dw_mmc: Misc cleanup of driver
  i2c: i2c-cortina: added CAxxxx I2C support

Jway Lin (2):
  led: led_cortina: Add CAxxx LED support
  board: presidio: add LED support

Pengpeng Chen (1):
  spi: ca_sflash: Add CAxxxx SPI Flash Controller

 MAINTAINERS                                      |   8 +
 arch/arm/dts/ca-presidio-engboard.dts            |  41 +-
 board/cortina/presidio-asic/presidio.c           |  16 +-
 configs/cortina_presidio-asic-emmc_defconfig     |   5 +
 configs/cortina_presidio-asic-spi-nand_defconfig |  48 ++
 configs/cortina_presidio-asic-spi-nor_defconfig  |  59 +++
 doc/device-tree-bindings/i2c/i2c-cortina.txt     |  18 +
 drivers/i2c/Kconfig                              |   7 +
 drivers/i2c/Makefile                             |   1 +
 drivers/i2c/i2c-cortina.c                        | 346 ++++++++++++++
 drivers/i2c/i2c-cortina.h                        |  84 ++++
 drivers/led/Kconfig                              |   8 +
 drivers/led/Makefile                             |   1 +
 drivers/led/led_cortina.c                        | 268 +++++++++++
 drivers/mmc/ca_dw_mmc.c                          |  34 +-
 drivers/spi/Kconfig                              |   8 +
 drivers/spi/Makefile                             |   1 +
 drivers/spi/ca_sflash.c                          | 576 +++++++++++++++++++++++
 18 files changed, 1499 insertions(+), 30 deletions(-)
 create mode 100644 configs/cortina_presidio-asic-spi-nand_defconfig
 create mode 100644 configs/cortina_presidio-asic-spi-nor_defconfig
 create mode 100644 doc/device-tree-bindings/i2c/i2c-cortina.txt
 create mode 100644 drivers/i2c/i2c-cortina.c
 create mode 100644 drivers/i2c/i2c-cortina.h
 create mode 100644 drivers/led/led_cortina.c
 create mode 100644 drivers/spi/ca_sflash.c