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Diffstat (limited to 'doc/README.spear')
| -rw-r--r-- | doc/README.spear | 54 |
1 files changed, 40 insertions, 14 deletions
diff --git a/doc/README.spear b/doc/README.spear index a8b1052..0789b3f 100644 --- a/doc/README.spear +++ b/doc/README.spear @@ -6,9 +6,10 @@ 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. +U-Boot supports four SoCs: SPEAr600, SPEAr3xx -All 4 SoCs share common peripherals. +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) @@ -22,7 +23,7 @@ All 4 SoCs share common peripherals. 10. others .. Everything is supported in Linux. -u-boot is not currently supporting all peripeharls (just a few as listed below). +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 @@ -31,18 +32,43 @@ u-boot is not currently supporting all peripeharls (just a few as listed below). 5. UART Build options - make spear600_config + 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 spear320_config - -Further options - make ENV=NAND (supported by all 4 SoCs) - - This option generates a uboot image that saves environment inn NAND + 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 - make CONSOLE=USB (supported by all 4 SoCs) - - This option generates a uboot image for using usbdevice as a tty i/f +Mac id storage and retrieval in spear platforms - make FLASH=PNOR (supported by SPEAr310 and SPEAr320) - - This option generates a uboot image that supports emi controller for - CFI compliant parallel NOR flash +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 |