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 #include <bdk.h>
40 #include "libbdk-arch/bdk-csrs-gpio.h"
41 #include "libbdk-hal/bdk-config.h"
42 #include "libbdk-hal/bdk-gpio.h"
43 #include "libbdk-boot/bdk-boot-gpio.h"
44
45 /**
46 * Configure GPIO on all nodes as part of booting
47 */
bdk_boot_gpio(void)48 void bdk_boot_gpio(void)
49 {
50 const int NUM_GPIO = bdk_gpio_get_num();
51 for (bdk_node_t n = BDK_NODE_0; n < BDK_NUMA_MAX_NODES; n++)
52 {
53 if (bdk_numa_exists(n))
54 {
55 for (int gpio = 0; gpio < NUM_GPIO; gpio++)
56 {
57 int pin_sel = bdk_config_get_int(BDK_CONFIG_GPIO_PIN_SELECT, gpio, n);
58 if (pin_sel >= 0)
59 {
60 BDK_TRACE(INIT, "Connecting N%d.GPIO%d to pin select 0x%x\n",
61 n, gpio, pin_sel);
62 bdk_gpio_select_pin(n, gpio, pin_sel);
63 }
64 int invert = bdk_config_get_int(BDK_CONFIG_GPIO_POLARITY, gpio, n);
65 if (invert)
66 BDK_CSR_MODIFY(c, n, BDK_GPIO_BIT_CFGX(gpio), c.s.pin_xor = 1);
67 }
68 }
69 }
70 }
71