zynq: Add zynq zc70x board support

The Zynq-7000 APSOC zc702 and zc706 enabled complte embedded
processing includes ASIC and FPGA design.

ZC702-:

APSOC:
- XC7Z020-CLG484-1
Memory:
- DDR3 Component Memory 1GB
- 16MB Quad SPI Flash
- IIC - 1 KB EEPROM
Connectivity:
- Gigabit Ethernet GMII, RGMII and SGMII.
- USB OTG - Host USB
- IIC Bus Headers/HUB
- 1 CAN with Wake on CAN
- USB-UART
Video/Display:
- HDMI Video OUT
- 8X LEDs
Control & I/O:
- 3 User Push Buttons
- 2 User Switches
- 8 User LEDs

For more info on zc702 board:
- http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC702-G.htm

ZC706-:

APSOC:
- XC7Z045 FFG900 -2 AP SoC
Memory:
- DDR3 Component Memory 1GB (PS)
- DDR3 SODIM Memory 1GB (PL)
- 2X16MB Quad SPI Flash (dual parallel)
- IIC - 1 KB EEPROM
Connectivity:
- PCIe Gen2x4
- SFP+ and SMA Pairs
- GigE RGMII Ethernet (PS)
- USB OTG 1 (PS) - Host USB
- IIC Bus Headers/HUB (PS)
- 1 CAN with Wake on CAN (PS)
- USB-UART
Video/Display:
- HDMI 8 color RGB 4.4.4 1080P-60 OUT
- HDMI IN 8 color RGB 4.4.4
Control & I/O:
- 2 User Push Buttons/Dip Switch, 2 User LEDs
- IIC access to GPIO
- SDIO (SD Card slot)
- 3 User Push Buttons, 2 User Switches, 8 User LEDs

For more info on zc706 board:
- http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC706-G.htm

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq: Add zynq zed board support

Zed is a complete development board based on the
Xilinx Zynq-7000 All Programmable SoC.

APSOC:
- XC7Z020-CLG484-1
Memory:
- 512 MB DDR3
- 256 Mb Quad-SPI Flash(
- Full size SD/MMC card cage
Connectivity:
- 10/100/1000 Ethernet
- USB OTG (Device/Host/OTG)
- USB-UART
Expansion:
- FMC (Low Pin Count)
- Pmod. headers (2x6)
Video/Display:
- HDMI output (1080p60 + audio)
- VGA connector
- 128 x 32 OLED
- User LEDs (9)
User inputs:
- Slide switches (8)
- Push button switches (7)
Audio:
- 24-bit stereo audio CODEC
- Stereo line in/out
- Headphone
- Microphone input
Analog:
- Xilinx XADC header
- Supports 4 analog inputs
- 2 Differential / 4 Single-ended
Debug:
- On-board USB JTAG programming port
- ARM Debug Access Port (DAP)

For more info - http://zedboard.org/product/zedboard

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq: Move CONFIG_SYS_SDRAM_SIZE to pre-board configs

CONFIG_SYS_SDRAM_SIZE is specific to a board hence moved
to specific pre-config board files.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq-common: Define exact TEXT_BASE

Defined TEXT_BASE for u-boot starts from 0x4000000
w.r.t zynq memory-map.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq: zc70x: Add Catalyst 24WC08 EEPROM config support

Adds configurations for Catalyst 24WC08 EEPROM, which
is present on the zynq boards.

Enable EEPROM support for zc70x boards.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq: Add zynq microzed board support

MicroZed is a low-cost development board based on
the Xilinx Zynq-7000 All Programmable SoC.

APSOC:
- XC7Z010-1CLG400C
Memory:
- 1 GB of DDR3 SDRAM
- 128Mb of QSPI flash(S25FL128SAGBHI200)
- Micro SD card interface
Communication:
- 10/100/1000 Ethernet
- USB 2.0
- USB-UART
User I/O:
- 100 User I/O (50 per connector)
- Configurable as up to 48 LVDS pairs or 100 single-ended I/O
Misc:
- Xilinx PC4 JTAG configuration port
- PS JTAG pins accessible via Pmod
- 33.33 MHz oscillator
- User LED and push switch

For more info - http://zedboard.org/product/microzed

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq: Add zynq_zc770 xm010 board support

ZC770 is a complete development board based on the Xilinx Zynq-7000
All Programmable SoC, similar to ZC70x board but which has four
different daughter cards, like XM010, XM011, XM012 and XM013

ZC770 XM010:
- 1Gb DDR3
- 1Mb SST SPI flash
- 128 Mb Quad-SPI Flash
- 8 Mb SST SI flash
- Full size SD/MMC card cage
- 10/100/1000 Ethernet
- USB-UART

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq: Add zynq_zc770 xm013 board support

ZC770 is a complete development board based on the Xilinx Zynq-7000
All Programmable SoC, similar to ZC70x board but which has four
different daughter cards, like XM010, XM011, XM012 and XM013

ZC770 XM013:
- 1GB DDR3
- 128 Mb Quad-SPI Flash(dual parallel)
- USB-UART

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq: Add zynq_zc770 xm012 board support

ZC770 is a complete development board based on the Xilinx Zynq-7000
All Programmable SoC, similar to ZC70x board but which has four
different daughter cards, like XM010, XM011, XM012 and XM013

ZC770 XM012:
- 1GB DDR3
- 64MiB Numonyx NOR flash
- USB-UART

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Cc: Stefan Roese <sr@denx.de>
zynq: Add support to find bootmode

Added support to find the bootmodes by reading
slcr bootmode register. this can be helpful to
autoboot the configurations w.r.t a specified bootmode.

Added this functionality on board_late_init as it's not
needed for normal initializtion part.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq-common: Define default environment

Defined default env. for autoboot FIT image from
respective boot devices.

Default settings:
fit_image=fit.itb
load_addr=0x2000000
fit_size=0x800000
flash_off=0x100000
nor_flash_off=0xE2100000

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq-common: Change Env. Sector size to 128Kb

Changed Env. Sector size from 0x10000 to 128Kb

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq-common: Define flash env. partition

Last 128Kb sector of 1Mb flash is defined as u-boot
environment partition.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq-common: Define CONFIG_ENV_OVERWRITE

Defined CONFIG_ENV_OVERWRITE, which allow to
overwrite serial baudrate and ethaddr.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
dts: zynq: Add basic fdt support

This patch provides a basic fdt support for zynq u-boot.

zynq-7000.dtsi-> initial arch dts file
zynq-zed.dts -> initial zed board dts file
more devices should be added in subsequent patches.

u-boot build: once configuring of a board done
for building dtb with zynq-zed.dts as an input
zynq-uboot> make DEVICE_TREE=zynq-zed

Enabled CONFIG_OF_SEPARATE for building dtb separately.
There is a new binary called u-boot-dtb.bin which is a u-boot
with devicetree supported.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
gpio: zynq: Add dummy gpio routines

GPIO dummy routines are required for fdt build, may be removed
these dependencies once the u-boot fdt is fully optimized.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq-common: Enable verified boot(RSA)

CONFIG_FIT_SIGNATURE - signature node support in FIT image
CONFIG_RSA - RSA lib support

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
dts: zynq: Add more zynq dts files

This patch adds initial dts support for supported
zynq boards.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
zynq: Enable CONFIG_DEFAULT_DEVICE_TREE

Enabled default dts files on respective pre-board config
files this is way MAKEALL will works. and it's upto user
to build specific dts by specifying at build time.

$ make zynq_zc70x_config
$ make -->  with default dts zynq-zc702.dts
or
$ make DEVICE_TREE=zynq-zc702 --> Same configuration with zynq-zc706.dts

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
doc: Update the zynq u-boot status

Updated doc/README.zynq to current status

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>