| |
| 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!). |
| |
| U-Boot supports four SoCs: SPEAr600, SPEAr3xx |
| |
| All 4 SoCs (SPEAr3xx and SPEAr600) share common peripherals. SPEAr300 and |
| SPEAr600 do not have EMI. |
| |
| 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 currently not 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 spear320_config |
| spear320 build with environment variables placed at default |
| location i.e. Serial NOR device |
| make spear320_pnor_config |
| This option generates a uboot image that supports emi controller |
| for CFI compliant parallel NOR flash. Environment variables are |
| placed in Parallel NOR device |
| make spear320_nand_config |
| spear320 build with environment variables placed in NAND device |
| make spear320_usbtty_config |
| spear320 build with usbtty terminal as default and environment |
| placed at default location |
| make spear320_usbtty_pnor_config |
| spear320 build with usbtty terminal as default and environment |
| placed in pnor device |
| make spear320_usbtty_nand_config |
| Build with usbtty terminal as default and environment placed in |
| NAND device |
| make spear300_config |
| make spear300_nand_config |
| make spear300_usbtty_config |
| make spear300_usbtty_nand_config |
| make spear310_config |
| make spear310_pnor_config |
| make spear310_nand_config |
| make spear310_usbtty_config |
| make spear310_usbtty_pnor_config |
| make spear310_usbtty_nand_config |
| make spear600_config |
| make spear600_nand_config |
| make spear600_usbtty_config |
| make spear600_usbtty_nand_config |
| |
| Mac id storage and retrieval in spear platforms |
| |
| Please read doc/README.enetaddr for the implementation guidelines for mac id |
| usage. Basically, environment has precedence over board specific storage. The |
| ethaddr beeing used for the network interface is always taken only from |
| environment variables. Although, we can check the mac id programmed in i2c |
| memory by using chip_config command |
