mmc: davinci: fix mmc boot in SPL
[oweals/u-boot.git] / board / freescale / ls1021aiot / README
1 Overview
2 --------
3 The LS1021A-IOT is a Freescale reference board that hosts
4 the LS1021A SoC.
5
6 LS1021AIOT board Overview
7 -------------------------
8  - DDR Controller
9         - Supports 1GB un-buffered DDR3L SDRAM discrete
10         devices(32-bit bus) with 4 bit ECC
11         - DDR power supplies 1.35V to all devices with
12         automatic tracking of VTT
13         - Soldered DDR chip
14         - Supprot one fixed speed
15  - Ethernet
16         - Two on-board SGMII 10/100/1G ethernet ports
17         - One Gbit Etherent RGMII interface to 4-ports switch
18         with 4x 10/100/1000 RJ145 ports
19  - CPLD
20         - 8-bit registers in CPLD for system configuration
21         - connected to IFC_AD[0:7]
22  - Power Supplies
23         - 12V@5A DC
24  - SDHC
25         - SDHC port connects directly to a full 8-bit SD/MMC slot
26         - Support for SDIO devices
27  - USB
28         - Two on-board USB 3.0
29         - One on-board USB k22
30  - PCIe
31         - Two MiniPCIe Solts
32  - SATA
33         - Support SATA Connector
34  - AUDIO
35         - AUDIO in and out
36  - I/O Expansion
37         - Arduino Shield Connector
38         - Port0 - CAN/GPIO/Flextimer
39         - Port1 - GPIO/CPLD Expansion
40         - Port2 - SPI/I2C/UART
41
42 Memory map
43 -----------
44 The addresses in brackets are physical addresses.
45
46 Start Address   End Address             Description                     Size
47 0x00_0100_0000  0x00_0FFF_FFFF  CCSRBAR                         240MB
48 0x00_4000_0000  0x00_43FF_FFFF  QSPI(Chip select 0)     64MB
49 0x00_4400_0000  0x00_47FF_FFFF  QSPI(Chip select 1)     64MB
50 0x00_6000_0000  0x00_6000_FFFF  CPLD                            64K
51 0x00_8000_0000  0x00_BFFF_FFFF  DDR                                     1GB
52
53 Boot description
54 -----------------
55 LS1021A-IOT support two ways of boot:
56 Qspi boot and SD boot
57 The board doesn't support boot from another
58 source without changing any switch/jumper.