mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-30 08:31:03 +00:00
ddd8a08052
SoC overviews are getting repeated across board folders. So, Organize SoC overview at common location i.e. fsl-layerscape/doc Also move README.lsch2 and README.lsch3 in same folder. Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
81 lines
2.8 KiB
Text
81 lines
2.8 KiB
Text
Overview
|
|
--------
|
|
The LS2080A Reference Design (RDB) is a high-performance computing,
|
|
evaluation, and development platform that supports the QorIQ LS2080A
|
|
Layerscape Architecture processor.
|
|
|
|
LS2080A SoC Overview
|
|
--------------------
|
|
Please refer arch/arm/cpu/armv8/fsl-layerscape/doc/README.soc for LS2080A
|
|
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
|
|
|
|
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_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
|
|
|
|
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'
|
|
|