123456789101112131415161718192021222324252627282930313233343536373839404142434445464748 |
- /*
- * omap_hwmod implementation for OMAP2/3/4
- *
- * Copyright (C) 2009-2011 Nokia Corporation
- * Copyright (C) 2011-2012 Texas Instruments, Inc.
- *
- * Paul Walmsley, Benoît Cousson, Kevin Hilman
- *
- * Created in collaboration with (alphabetical order): Thara Gopinath,
- * Tony Lindgren, Rajendra Nayak, Vikram Pandita, Sakari Poussa, Anand
- * Sawant, Santosh Shilimkar, Richard Woodruff
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Introduction
- * ------------
- * One way to view an OMAP SoC is as a collection of largely unrelated
- * IP blocks connected by interconnects. The IP blocks include
- * devices such as ARM processors, audio serial interfaces, UARTs,
- * etc. Some of these devices, like the DSP, are created by TI;
- * others, like the SGX, largely originate from external vendors. In
- * TI's documentation, on-chip devices are referred to as "OMAP
- * modules." Some of these IP blocks are identical across several
- * OMAP versions. Others are revised frequently.
- *
- * These OMAP modules are tied together by various interconnects.
- * Most of the address and data flow between modules is via OCP-based
- * interconnects such as the L3 and L4 buses; but there are other
- * interconnects that distribute the hardware clock tree, handle idle
- * and reset signaling, supply power, and connect the modules to
- * various pads or balls on the OMAP package.
- *
- * OMAP hwmod provides a consistent way to describe the on-chip
- * hardware blocks and their integration into the rest of the chip.
- * This description can be automatically generated from the TI
- * hardware database. OMAP hwmod provides a standard, consistent API
- * to reset, enable, idle, and disable these hardware blocks. And
- * hwmod provides a way for other core code, such as the Linux device
- * code or the OMAP power management and address space mapping code,
- * to query the hardware database.
- *
- * Using hwmod
- * -----------
- * Drivers won't call hwmod functions directly. That is done by the
- * omap_device code, and in rare occasions, by custom integration code
- * in arch/arm/ *omap*. The omap_device code includes functions to
|