From f904cdbb68167c647887f19929ad295dbaac8862 Mon Sep 17 00:00:00 2001 From: Dirk Behme Date: Tue, 27 Jan 2009 18:19:12 +0100 Subject: OMAP3: Add common power code, README, and BeagleBoard Add BeagleBoard support, common power code and README. Signed-off-by: Jason Kridner Signed-off-by: Dirk Behme --- doc/README.omap3 | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 doc/README.omap3 (limited to 'doc/README.omap3') diff --git a/doc/README.omap3 b/doc/README.omap3 new file mode 100644 index 000000000..7ac521f76 --- /dev/null +++ b/doc/README.omap3 @@ -0,0 +1,72 @@ + +Summary +======= + +This README is about U-Boot support for TI's ARM Cortex-A8 based OMAP3 [1] +family of SoCs. TI's OMAP3 SoC family contains an ARM Cortex-A8. Additionally, +some family members contain a TMS320C64x+ DSP and/or an Imagination SGX 2D/3D +graphics processor and various other standard peripherals. + +Currently the following boards are supported: + +* OMAP3530 BeagleBoard [2] + +Toolchain +========= + +While ARM Cortex-A8 support ARM v7 instruction set (-march=armv7a) we compile +with -march=armv5 to allow more compilers to work. For U-Boot code this has +no performance impact. + +Build +===== + +* BeagleBoard: + +make omap3_beagle_config +make + +Custom commands +=============== + +To make U-Boot for OMAP3 support NAND device SW or HW ECC calculation, U-Boot +for OMAP3 supports custom user command + +nandecc hw/sw + +To be compatible with NAND drivers using SW ECC (e.g. kernel code) + +nandecc sw + +enables SW ECC calculation. HW ECC enabled with + +nandecc hw + +is typically used to write 2nd stage bootloader (known as 'x-loader') which is +executed by OMAP3's boot rom and therefore has to be written with HW ECC. + +For all other commands see + +help + +Acknowledgements +================ + +OMAP3 U-Boot is based on U-Boot tar ball [3] for BeagleBoard and EVM done by +several TI employees. + +Links +===== + +[1] OMAP3: + +http://www.ti.com/omap3 (high volume) and +http://www.ti.com/omap35x (broad market) + +[2] OMAP3530 BeagleBoard: + +http://beagleboard.org/ + +[3] TI OMAP3 U-Boot: + +http://beagleboard.googlecode.com/files/u-boot_beagle_revb.tar.gz -- cgit v1.2.3