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Overview
--------
The LS2080A Reference Design (RDB) is a high-performance computing,
evaluation, and development platform that supports the QorIQ LS2080A, LS2088A
Layerscape Architecture processor.
The LS2081A Reference Design (RDB) is a high-performance computing,
evaluation, and development platform that supports the QorIQ LS2081A
Layerscape Architecture processor.More details in below sections
LS2080A, LS2088A, LS2081A SoC Overview
--------------------------------------
Please refer arch/arm/cpu/armv8/fsl-layerscape/doc/README.soc for LS2080A,
LS2081A, LS2088A SoC overview.
LS2080ARDB board Overview
-----------------------
- SERDES Connections, 16 lanes supporting:
- PCI Express - 3.0
- SATA 3.0
- XFI
- DDR Controller
- Two ports of 72-bits (8-bits ECC) DDR4. Each port supports four
chip-selects and two DIMM connectors. Support is up to 2133MT/s.
- One port of 40-bits (8-bits ECC) DDR4 which supports four chip-selects
and two DIMM connectors. Support is up to 1600MT/s.
-IFC/Local Bus
- IFC rev. 2.0 implementation supporting Little Endian connection scheme.
- 128 MB NOR flash 16-bit data bus
- One 2 GB NAND flash with ECC support
- CPLD connection
- USB 3.0
- Two high speed USB 3.0 ports
- First USB 3.0 port configured as Host with Type-A connector
- Second USB 3.0 port configured as OTG with micro-AB connector
- SDHC adapter
- SD Card Rev 2.0 and Rev 3.0
- DSPI
- 128 MB high-speed flash Memory for boot code and storage (up to 108MHz)
- 4 I2C controllers
- Two SATA onboard connectors
- UART
- ARM JTAG support
LS2081ARDB board Overview
-------------------------
LS2081ARDB board is similar to LS2080ARDB board
with few differences like
- Hosts LS2081A SoC
- Default boot source is QSPI-boot
- Does not have IFC interface
- RTC and QSPI flash devices are different
- Provides QIXIS access via I2C
Memory map from core's view
----------------------------
0x00_0000_0000 .. 0x00_000F_FFFF Boot Rom
0x00_0100_0000 .. 0x00_0FFF_FFFF CCSR
0x00_1800_0000 .. 0x00_181F_FFFF OCRAM
0x00_2000_0000 .. 0x00_2FFF_FFFF QSPI region #1
0x00_3000_0000 .. 0x00_3FFF_FFFF IFC region #1
0x00_8000_0000 .. 0x00_FFFF_FFFF DDR region #1
0x05_1000_0000 .. 0x05_FFFF_FFFF IFC region #2
0x80_8000_0000 .. 0xFF_FFFF_FFFF DDR region #2
Other addresses are either reserved, or not used directly by U-Boot.
This list should be updated when more addresses are used.
IFC region map from core's view
-------------------------------
During boot i.e. IFC Region #1:-
0x30000000 - 0x37ffffff : 128MB : NOR flash
0x3C000000 - 0x40000000 : 64MB : CPLD
After relocate to DDR i.e. IFC Region #2:-
0x5_1000_0000..0x5_1fff_ffff Memory Hole
0x5_2000_0000..0x5_3fff_ffff IFC CSx (CPLD, NAND and others 512MB)
0x5_4000_0000..0x5_7fff_ffff ASIC or others 1GB
0x5_8000_0000..0x5_bfff_ffff IFC CS0 1GB (NOR/Promjet)
0x5_C000_0000..0x5_ffff_ffff IFC CS1 1GB (NOR/Promjet)
Booting Options
---------------
a) NOR boot
b) NAND boot
c) QSPI boot
cfg_rcw_src switches needs to be changed for booting from different option.
Refer to board documentation for correct switch setting.
QSPI boot details
===================
Supported only for
LS2088ARDB RevF board with LS2088A SoC.
Images needs to be copied to QSPI flash
as per memory map given below.
Memory map for QSPI flash
-------------------------
Image Flash Offset
RCW+PBI 0x00000000
Boot firmware (U-Boot) 0x00100000
Boot firmware Environment 0x00300000
PPA firmware 0x00400000
Cortina PHY firmware 0x00980000
DPAA2 MC 0x00A00000
DPAA2 DPL 0x00D00000
DPAA2 DPC 0x00E00000
Kernel.itb 0x01000000
Booting Linux flavors which do not support 48-bit VA (< Linux 3.18)
-------------------------------------------------------------------
One needs to use appropriate bootargs to boot Linux flavors which do
not support 48-bit VA (for e.g. < Linux 3.18) by appending mem=2048M, as shown
below:
=> setenv bootargs 'console=ttyS1,115200 root=/dev/ram
earlycon=uart8250,mmio,0x21c0600,115200 default_hugepagesz=2m hugepagesz=2m
hugepages=16 mem=2048M'
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