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diff --git a/roms/u-boot/board/freescale/ls2080ardb/README b/roms/u-boot/board/freescale/ls2080ardb/README new file mode 100644 index 000000000..205c45cb2 --- /dev/null +++ b/roms/u-boot/board/freescale/ls2080ardb/README @@ -0,0 +1,135 @@ +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 + +Memory map for NOR boot +------------------------- +Image Flash Offset +RCW+PBI 0x00000000 +Boot firmware (U-Boot) 0x00100000 +Boot firmware Environment 0x00300000 +PPA firmware 0x00400000 +Secure Headers 0x00600000 +Cortina PHY firmware 0x00980000 +DPAA2 MC 0x00A00000 +DPAA2 DPL 0x00D00000 +DPAA2 DPC 0x00E00000 +Kernel.itb 0x01000000 + +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' + |