xref: /aosp_15_r20/external/coreboot/src/vendorcode/cavium/bdk/libdram/dram-gpio.h (revision b9411a12aaaa7e1e6a6fb7c5e057f44ee179a49c)
1 /***********************license start***********************************
2 * Copyright (c) 2003-2017  Cavium Inc. ([email protected]). All rights
3 * reserved.
4 *
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met:
9 *
10 *   * Redistributions of source code must retain the above copyright
11 *     notice, this list of conditions and the following disclaimer.
12 *
13 *   * Redistributions in binary form must reproduce the above
14 *     copyright notice, this list of conditions and the following
15 *     disclaimer in the documentation and/or other materials provided
16 *     with the distribution.
17 *
18 *   * Neither the name of Cavium Inc. nor the names of
19 *     its contributors may be used to endorse or promote products
20 *     derived from this software without specific prior written
21 *     permission.
22 *
23 * This Software, including technical data, may be subject to U.S. export
24 * control laws, including the U.S. Export Administration Act and its
25 * associated regulations, and may be subject to export or import
26 * regulations in other countries.
27 *
28 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
29 * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
30 * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT
31 * TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
32 * REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
33 * DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES
34 * OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR
35 * PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT,
36 * QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE  RISK
37 * ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
38 ***********************license end**************************************/
39 
40 /**
41  * Functions for reporting DRAM init status through GPIOs.
42  * Useful for triggering scopes and such. Internal use only.
43  */
44 
45 extern void pulse_gpio_pin(bdk_node_t node, int pin, int usecs);
46 
47