1 /***********************license start***************
2 * Author: Cavium Networks
3 *
4 * Contact: support@caviumnetworks.com
5 * This file is part of the OCTEON SDK
6 *
7 * Copyright (c) 2003-2016 Cavium, Inc.
8 *
9 * This file is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License, Version 2, as
11 * published by the Free Software Foundation.
12 *
13 * This file is distributed in the hope that it will be useful, but
14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
16 * NONINFRINGEMENT. See the GNU General Public License for more
17 * details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this file; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 * or visit http://www.gnu.org/licenses/.
23 *
24 * This file may also be available under a different license from Cavium.
25 * Contact Cavium Networks for more information
26 ***********************license end**************************************/
27
28 /*
29 * This module provides system/board information obtained by the bootloader.
30 */
31
32 #ifndef __CVMX_SYSINFO_H__
33 #define __CVMX_SYSINFO_H__
34
35 #include "cvmx-coremask.h"
36
37 #define OCTEON_SERIAL_LEN 20
38 /**
39 * Structure describing application specific information.
40 * __cvmx_app_init() populates this from the cvmx boot descriptor.
41 * This structure is private to simple executive applications, so
42 * no versioning is required.
43 *
44 * This structure must be provided with some fields set in order to
45 * use simple executive functions in other applications (Linux kernel,
46 * u-boot, etc.) The cvmx_sysinfo_minimal_initialize() function is
47 * provided to set the required values in these cases.
48 */
49 struct cvmx_sysinfo {
50 /* System wide variables */
51 /* installed DRAM in system, in bytes */
52 uint64_t system_dram_size;
53
54 /* ptr to memory descriptor block */
55 uint64_t phy_mem_desc_addr;
56
57 /* Application image specific variables */
58 /* stack top address (virtual) */
59 uint64_t stack_top;
60 /* heap base address (virtual) */
61 uint64_t heap_base;
62 /* stack size in bytes */
63 uint32_t stack_size;
64 /* heap size in bytes */
65 uint32_t heap_size;
66 /* coremask defining cores running application */
67 struct cvmx_coremask core_mask;
68 /* Deprecated, use cvmx_coremask_first_core() to select init core */
69 uint32_t init_core;
70
71 /* exception base address, as set by bootloader */
72 uint64_t exception_base_addr;
73
74 /* cpu clock speed in hz */
75 uint32_t cpu_clock_hz;
76
77 /* dram data rate in hz (data rate = 2 * clock rate */
78 uint32_t dram_data_rate_hz;
79
80
81 uint16_t board_type;
82 uint8_t board_rev_major;
83 uint8_t board_rev_minor;
84 uint8_t mac_addr_base[6];
85 uint8_t mac_addr_count;
86 char board_serial_number[OCTEON_SERIAL_LEN];
87 /*
88 * Several boards support compact flash on the Octeon boot
89 * bus. The CF memory spaces may be mapped to different
90 * addresses on different boards. These values will be 0 if
91 * CF is not present. Note that these addresses are physical
92 * addresses, and it is up to the application to use the
93 * proper addressing mode (XKPHYS, KSEG0, etc.)
94 */
95 uint64_t compact_flash_common_base_addr;
96 uint64_t compact_flash_attribute_base_addr;
97 /*
98 * Base address of the LED display (as on EBT3000 board) This
99 * will be 0 if LED display not present. Note that this
100 * address is a physical address, and it is up to the
101 * application to use the proper addressing mode (XKPHYS,
102 * KSEG0, etc.)
103 */
104 uint64_t led_display_base_addr;
105 /* DFA reference clock in hz (if applicable)*/
106 uint32_t dfa_ref_clock_hz;
107 /* configuration flags from bootloader */
108 uint32_t bootloader_config_flags;
109
110 /* Uart number used for console */
111 uint8_t console_uart_num;
112 };
113
114 /**
115 * This function returns the system/board information as obtained
116 * by the bootloader.
117 *
118 *
119 * Returns Pointer to the boot information structure
120 *
121 */
122
123 extern struct cvmx_sysinfo *cvmx_sysinfo_get(void);
124
125 #endif /* __CVMX_SYSINFO_H__ */