2 SPEAr (Structured Processor Enhanced Architecture).
4 SPEAr600 is also known as SPEArPlus and SPEAr300 is also known as SPEArBasic
6 The SPEAr SoC family embeds a customizable logic that can be programmed
7 one-time by a customer at silicon mask level (i.e. not at runtime!).
9 U-Boot supports four SoCs: SPEAr600, SPEAr3xx
11 All 4 SoCs (SPEAr3xx and SPEAr600) share common peripherals. SPEAr300 and
12 SPEAr600 do not have EMI.
14 1. ARM926ejs core based (sp600 has two cores, the 2nd handled only in Linux)
15 2. FastEthernet (sp600 has Gbit version, but same controller - GMAC)
18 5. NAND controller (FSMC)
25 Everything is supported in Linux.
26 u-boot is currently not supporting all peripeharls (just a few as listed below).
28 2. NAND controller (FSMC)
29 3. Serial Memory Interface
30 4. EMI (Parallel NOR interface)
36 spear320 build with environment variables placed at default
37 location i.e. Serial NOR device
38 make spear320_pnor_config
39 This option generates a uboot image that supports emi controller
40 for CFI compliant parallel NOR flash. Environment variables are
41 placed in Parallel NOR device
42 make spear320_nand_config
43 spear320 build with environment variables placed in NAND device
44 make spear320_usbtty_config
45 spear320 build with usbtty terminal as default and environment
46 placed at default location
47 make spear320_usbtty_pnor_config
48 spear320 build with usbtty terminal as default and environment
50 make spear320_usbtty_nand_config
51 Build with usbtty terminal as default and environment placed in
54 make spear300_nand_config
55 make spear300_usbtty_config
56 make spear300_usbtty_nand_config
58 make spear310_pnor_config
59 make spear310_nand_config
60 make spear310_usbtty_config
61 make spear310_usbtty_pnor_config
62 make spear310_usbtty_nand_config
64 make spear600_nand_config
65 make spear600_usbtty_config
66 make spear600_usbtty_nand_config
68 Mac id storage and retrieval in spear platforms
70 Please read doc/README.enetaddr for the implementation guidelines for mac id
71 usage. Basically, environment has precedence over board specific storage. The
72 ethaddr beeing used for the network interface is always taken only from
73 environment variables. Although, we can check the mac id programmed in i2c
74 memory by using chip_config command