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6f6fbb334c
In both the Freescale DDR controller and the SPD spec, bank address bits
are stored as the number of bank address bits minus 2. For example, if a
chip had 8 banks (3 total bank address bits), the value of
bank_addr_bits would be 1. This is rather surprising for users
configuring their memory manually, since they can't set bank_addr_bits
to the actual number of bank address bits. Rectify this.
There is at least one example of this kind of mistake already, in
board/freescale/t102xrdb/ddr.c. The documented MT40A512M8HX has two bank
address bits, but bank_addr_bits was set to 2, implying 4 bank address
bits. Such a value is reserved in BA_BITS_CS, but I suspect the
controller simply ignores the top bit, making this kind of mistake
harmless, if misleading.
Fixes: e8a7f1c32b5 ("powerpc/t1023rdb: Add T1023 RDB board support")
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Overview
--------
The LS1043A Reference Design Board (RDB) is a high-performance computing,
evaluation, and development platform that supports the QorIQ LS1043A
LayerScape Architecture processor. The LS1043ARDB provides SW development
platform for the Freescale LS1043A processor series, with a complete
debugging environment. The LS1043A RDB is lead-free and RoHS-compliant.
LS1043A SoC Overview
--------------------
Please refer arch/arm/cpu/armv8/fsl-layerscape/doc/README.soc for LS1043A
SoC overview.
LS1043ARDB board Overview
-----------------------
- SERDES Connections, 4 lanes supporting:
- PCI Express 2.0 with two PCIe connectors supporting: miniPCIe card and
standard PCIe card
- QSGMII with x4 RJ45 connector
- 10GBase-R with x1 RJ45 connector
- DDR Controller
- 2GB 32bits DDR4 SDRAM. Support rates of up to 1600MT/s
-IFC/Local Bus
- One 128MB NOR flash 16-bit data bus
- One 512 MB NAND flash with ECC support
- CPLD connection
- USB 3.0
- Two super speed USB 3.0 Type A ports
- SDHC: connects directly to a full SD/MMC slot
- DSPI: 16 MB high-speed flash Memory for boot code and storage (up to 108MHz)
- 4 I2C controllers
- UART
- Two 4-pin serial ports at up to 115.2 Kbit/s
- Two DB9 D-Type connectors supporting one Serial port each
- ARM JTAG support
Memory map from core's view
----------------------------
Start Address End Address Description Size
0x00_0000_0000 0x00_000F_FFFF Secure Boot ROM 1MB
0x00_0100_0000 0x00_0FFF_FFFF CCSRBAR 240MB
0x00_1000_0000 0x00_1000_FFFF OCRAM0 64KB
0x00_1001_0000 0x00_1001_FFFF OCRAM1 64KB
0x00_2000_0000 0x00_20FF_FFFF DCSR 16MB
0x00_6000_0000 0x00_67FF_FFFF IFC - NOR Flash 128MB
0x00_7E80_0000 0x00_7E80_FFFF IFC - NAND Flash 64KB
0x00_7FB0_0000 0x00_7FB0_0FFF IFC - FPGA 4KB
0x00_8000_0000 0x00_FFFF_FFFF DRAM1 2GB
Booting Options
---------------
a) NOR boot
b) NAND boot
c) SD boot