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Vipin KUMAR6fffcdf2010-01-15 19:15:42 +05301
2SPEAr (Structured Processor Enhanced Architecture).
3
4SPEAr600 is also known as SPEArPlus and SPEAr300 is also known as SPEArBasic
5
6The SPEAr SoC family embeds a customizable logic that can be programmed
7one-time by a customer at silicon mask level (i.e. not at runtime!).
8
9We are now adding the support in u-boot for two SoC: SPEAr600 and SPEAr3xx.
10
11All 4 SoCs share common peripherals.
12
131. ARM926ejs core based (sp600 has two cores, the 2nd handled only in Linux)
142. FastEthernet (sp600 has Gbit version, but same controller - GMAC)
153. USB Host
164. USB Device
175. NAND controller (FSMC)
186. Serial NOR ctrl
197. I2C
208. SPI
219. CLCD
2210. others ..
23
24Everything is supported in Linux.
25u-boot is not currently supporting all peripeharls (just a few as listed below).
261. USB Device
272. NAND controller (FSMC)
283. Serial Memory Interface
294. EMI (Parallel NOR interface)
304. I2C
315. UART
32
33Build options
34 make spear600_config
35 make spear300_config
36 make spear310_config
37 make spear320_config
38
39Further options
40 make ENV=NAND (supported by all 4 SoCs)
41 - This option generates a uboot image that saves environment inn NAND
42
43 make CONSOLE=USB (supported by all 4 SoCs)
44 - This option generates a uboot image for using usbdevice as a tty i/f
45
46 make FLASH=PNOR (supported by SPEAr310 and SPEAr320)
47 - This option generates a uboot image that supports emi controller for
48 CFI compliant parallel NOR flash