Overview
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The LS1028A Reference Design (RDB) is a high-performance computing,
evaluation, and development platform that supports ARM SoC LS1028A and its
derivatives.
LS1028A SoC Overview
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Please refer arch/arm/cpu/armv8/fsl-layerscape/doc/README.soc
RDB Default Switch Settings (1: ON; 0: OFF)
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For XSPI NOR boot (default)
SW2: 1111_1000
SW3: 1111_0000
SW5: 0011_1001
For SD Boot
SW2: 1000_1000
SW3: 1111_0000
SW5: 0011_1001
For eMMC Boot
SW2: 1001_1000
SW3: 1111_0000
SW5: 0011_1001
LS1028ARDB board Overview
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Processor
Two Arm Cortex- A72 processor cores:
- Based on 64-bit ARMv8 architecture
- Up to 1.3 GHz operation
- Single-threaded cores with 48 KB L1 instruction cache and 32 KB L1
data cache
- Arranged as a single cluster of two cores sharing a single 1 MB L2
cache
DDR memory
- Five onboard 1G x8 discrete memory modules (Four data byte lanes
ECC)
- 32-bit data and 4-bit ECC
- One chip select
- Data transfer rates of up to 1.6 GT/s
- Single-bit error correction and double-bit error detection ECC (4-bit
check word across 32-bit data)
High-speed serial ports(SerDes)
- Lane 0: Supports one 1 GbE RJ45 SGMII, connected through the
Qualcomm AR8033 PHY
- Lane 1: Supports four 1.25 GbE RJ45 QSGMII, each connected
through the NXP F104S8A PHY
- Lane 2: Connects to one PCIe M.2 Key-E slot to support PCIe Gen3
(8 Gbit/s) cards
- Lane 3: Connects to one PCIe M.2 Key-E slot or one SATA M.2 Key-B
slot through a register mux to support either PCIe Gen 3 (8 Gbit/s) or
SATA Gen 3 cards (6 Gbit/s) at a time
eSDHC
- eSDHC1, eSDHC2
SPI
- Connects to two mikroBUS sockets to support mikro-click modules,
such as Bluetooth 4.0, 2.4 GHz IEEE 802.15.4 radio transceiver, near
field communications (NFC) controller
Octal SPI (XSPI)
- One 256 MB onboard XSPI serial NOR flash memory
- One 512 MB onboard XSPI serial NAND flash memory
- Supports a QSPI emulator for offboard QSPI emulation
I2C
- All system devices are accessed via I2C1, which is multiplexed on
I2C multiplexer PCA9848 to isolate address conflicts and reduce
capacitive load
- I2C1 is used for EEPROMs, RTC, INA220 current-power sensor,
thermal monitor, PCIe/SATA M.2 connectors and mikro-click modules
1 and 2
CAN
- The two CAN DB9 ports can support CAN FD fast phase at data rates of
up to 5 Mbit/s
Serial audio interface(SAI)
- Audio codec SGTL5000 provides headphone and audio LINEOUT for
stereo speakers
- IEEE1588 interface to support audio on SAI4
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