6fffcdf8c8
README.spear contains information about SPEAr architecture and build options etc Signed-off-by: Vipin <vipin.kumar@st.com>
49 lines
1.3 KiB
Plaintext
49 lines
1.3 KiB
Plaintext
|
|
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
|