/***********************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 .
*/
#ifndef __CVMX_SYSINFO_H__
#define __CVMX_SYSINFO_H__
#include "cvmx-coremask.h"
#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
*
*/
extern struct cvmx_sysinfo *cvmx_sysinfo_get(void );
#endif /* __CVMX_SYSINFO_H__ */
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