SPEAr (Structured Processor Enhanced Architecture). SPEAr600 is also known as SPEArPlus and SPEAr300 is also known as SPEArBasic The SPEAr SoC family embeds a customizable logic that can be programmed one-time by a customer at silicon mask level (i.e. not at runtime!). We are now adding the support in u-boot for two SoC: SPEAr600 and SPEAr3xx. All 4 SoCs share common peripherals. 1. ARM926ejs core based (sp600 has two cores, the 2nd handled only in Linux) 2. FastEthernet (sp600 has Gbit version, but same controller - GMAC) 3. USB Host 4. USB Device 5. NAND controller (FSMC) 6. Serial NOR ctrl 7. I2C 8. SPI 9. CLCD 10. others .. Everything is supported in Linux. u-boot is not currently supporting all peripeharls (just a few as listed below). 1. USB Device 2. NAND controller (FSMC) 3. Serial Memory Interface 4. EMI (Parallel NOR interface) 4. I2C 5. UART Build options make spear600_config make spear300_config make spear310_config make spear320_config Further options make ENV=NAND (supported by all 4 SoCs) - This option generates a uboot image that saves environment inn NAND make CONSOLE=USB (supported by all 4 SoCs) - This option generates a uboot image for using usbdevice as a tty i/f make FLASH=PNOR (supported by SPEAr310 and SPEAr320) - This option generates a uboot image that supports emi controller for CFI compliant parallel NOR flash