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/***********************license start***************
* Author: Cavium Networks
*
* Contact: support@caviumnetworks.com
* This file is part of the OCTEON SDK
*
* Copyright (c) 2003-2008 Cavium Networks
*
* 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__
#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 */
void *phy_mem_desc_ptr;
/* 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 */
uint32_t 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);
/**
* This function is used in non-simple executive environments (such as
* Linux kernel, u-boot, etc.) to configure the minimal fields that
* are required to use simple executive files directly.
*
* Locking (if required) must be handled outside of this
* function
*
* @phy_mem_desc_ptr: Pointer to global physical memory descriptor
* (bootmem descriptor) @board_type: Octeon board
* type enumeration
*
* @board_rev_major:
* Board major revision
* @board_rev_minor:
* Board minor revision
* @cpu_clock_hz:
* CPU clock freqency in hertz
*
* Returns 0: Failure
* 1: success
*/
extern int cvmx_sysinfo_minimal_initialize(void *phy_mem_desc_ptr,
uint16_t board_type,
uint8_t board_rev_major,
uint8_t board_rev_minor,
uint32_t cpu_clock_hz);
#endif /* __CVMX_SYSINFO_H__ */
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