/***********************license start*************** * Author: Cavium Networks * * Contact: support@caviumnetworks.com * This file is part of the OCTEON SDK * * Copyright (c) 2003-2016 Cavium, Inc. * * This file 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. * * This file is distributed in the hope that it will be useful, but * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or * NONINFRINGEMENT. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License * along with this file; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * or visit http://www.gnu.org/licenses/. * * This file may also be available under a different license from Cavium. * Contact Cavium Networks for more information
***********************license end**************************************/
/* * This module provides system/board information obtained by the bootloader.
*/
#define OCTEON_SERIAL_LEN 20 /** * Structure describing application specific information. * __cvmx_app_init() populates this from the cvmx boot descriptor. * This structure is private to simple executive applications, so * no versioning is required. * * This structure must be provided with some fields set in order to * use simple executive functions in other applications (Linux kernel, * u-boot, etc.) The cvmx_sysinfo_minimal_initialize() function is * provided to set the required values in these cases.
*/ struct cvmx_sysinfo { /* System wide variables */ /* installed DRAM in system, in bytes */
uint64_t system_dram_size;
/* ptr to memory descriptor block */
uint64_t phy_mem_desc_addr;
/* Application image specific variables */ /* stack top address (virtual) */
uint64_t stack_top; /* heap base address (virtual) */
uint64_t heap_base; /* stack size in bytes */
uint32_t stack_size; /* heap size in bytes */
uint32_t heap_size; /* coremask defining cores running application */ struct cvmx_coremask core_mask; /* Deprecated, use cvmx_coremask_first_core() to select init core */
uint32_t init_core;
/* exception base address, as set by bootloader */
uint64_t exception_base_addr;
/* cpu clock speed in hz */
uint32_t cpu_clock_hz;
/* dram data rate in hz (data rate = 2 * clock rate */
uint32_t dram_data_rate_hz;
uint16_t board_type;
uint8_t board_rev_major;
uint8_t board_rev_minor;
uint8_t mac_addr_base[6];
uint8_t mac_addr_count; char board_serial_number[OCTEON_SERIAL_LEN]; /* * Several boards support compact flash on the Octeon boot * bus. The CF memory spaces may be mapped to different * addresses on different boards. These values will be 0 if * CF is not present. Note that these addresses are physical * addresses, and it is up to the application to use the * proper addressing mode (XKPHYS, KSEG0, etc.)
*/
uint64_t compact_flash_common_base_addr;
uint64_t compact_flash_attribute_base_addr; /* * Base address of the LED display (as on EBT3000 board) This * will be 0 if LED display not present. Note that this * address is a physical address, and it is up to the * application to use the proper addressing mode (XKPHYS, * KSEG0, etc.)
*/
uint64_t led_display_base_addr; /* DFA reference clock in hz (if applicable)*/
uint32_t dfa_ref_clock_hz; /* configuration flags from bootloader */
uint32_t bootloader_config_flags;
/* Uart number used for console */
uint8_t console_uart_num;
};
/** * This function returns the system/board information as obtained * by the bootloader. * * * Returns Pointer to the boot information structure *
*/
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