5 This README is about U-Boot support for TI's ARM Cortex-A8 based OMAP3 [1]
6 family of SoCs. TI's OMAP3 SoC family contains an ARM Cortex-A8. Additionally,
7 some family members contain a TMS320C64x+ DSP and/or an Imagination SGX 2D/3D
8 graphics processor and various other standard peripherals.
10 Currently the following boards are supported:
12 * OMAP3530 BeagleBoard [2]
19 While ARM Cortex-A8 support ARM v7 instruction set (-march=armv7a) we compile
20 with -march=armv5 to allow more compilers to work. For U-Boot code this has
21 no performance impact.
28 make omap3_beagle_config
33 make omap3_overo_config
39 To make U-Boot for OMAP3 support NAND device SW or HW ECC calculation, U-Boot
40 for OMAP3 supports custom user command
44 To be compatible with NAND drivers using SW ECC (e.g. kernel code)
48 enables SW ECC calculation. HW ECC enabled with
52 is typically used to write 2nd stage bootloader (known as 'x-loader') which is
53 executed by OMAP3's boot rom and therefore has to be written with HW ECC.
55 For all other commands see
62 OMAP3 U-Boot is based on U-Boot tar ball [4] for BeagleBoard and EVM done by
70 http://www.ti.com/omap3 (high volume) and
71 http://www.ti.com/omap35x (broad market)
73 [2] OMAP3530 BeagleBoard:
75 http://beagleboard.org/
79 http://www.gumstix.net/Overo/
83 http://beagleboard.googlecode.com/files/u-boot_beagle_revb.tar.gz