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]
18 * OpenPandora Ltd. Pandora [5]
20 * TI/Logic PD Zoom MDK [6]
22 * TI/Logic PD Zoom 2 [7]
24 * CompuLab Ltd. CM-T35 [8]
29 While ARM Cortex-A8 support ARM v7 instruction set (-march=armv7a) we compile
30 with -march=armv5 to allow more compilers to work. For U-Boot code this has
31 no performance impact.
38 make omap3_beagle_config
43 make omap3_overo_config
53 make omap3_pandora_config
58 make omap3_zoom1_config
63 make omap3_zoom2_config
74 To make U-Boot for OMAP3 support NAND device SW or HW ECC calculation, U-Boot
75 for OMAP3 supports custom user command
79 To be compatible with NAND drivers using SW ECC (e.g. kernel code)
83 enables SW ECC calculation. HW ECC enabled with
87 is typically used to write 2nd stage bootloader (known as 'x-loader') which is
88 executed by OMAP3's boot rom and therefore has to be written with HW ECC.
90 For all other commands see
101 if (!omap_request_gpio(N)) {
102 omap_set_gpio_direction(N, 0);
103 omap_set_gpio_dataout(N, 1);
108 if (!omap_request_gpio(N)) {
109 omap_set_gpio_direction(N, 0);
110 omap_set_gpio_dataout(N, 0);
115 if (!omap_request_gpio(N)) {
116 omap_set_gpio_direction(N, 1);
117 val = omap_get_gpio_datain(N);
121 printf("GPIO N is set\n");
123 printf("GPIO N is clear\n");
129 OMAP3 U-Boot is based on U-Boot tar ball [9] for BeagleBoard and EVM done by
130 several TI employees.
137 http://www.ti.com/omap3 (high volume) and
138 http://www.ti.com/omap35x (broad market)
140 [2] OMAP3530 BeagleBoard:
142 http://beagleboard.org/
146 http://www.gumstix.net/Overo/
150 http://focus.ti.com/docs/toolsw/folders/print/tmdxevm3503.html
152 [5] OpenPandora Ltd. Pandora:
154 http://openpandora.org/
156 [6] TI/Logic PD Zoom MDK:
158 http://www.logicpd.com/products/devkit/ti/zoom_mobile_development_kit
160 [7] TI/Logic PD Zoom 2
162 http://www.logicpd.com/sites/default/files/1012659A_Zoom_OMAP34x-II_MDP_Brief.pdf
164 [8] CompuLab Ltd. CM-T35:
166 http://www.compulab.co.il/t3530/html/t3530-cm-datasheet.htm
170 http://beagleboard.googlecode.com/files/u-boot_beagle_revb.tar.gz