153 lines
4.8 KiB
C
153 lines
4.8 KiB
C
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/***********************license start***************
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* Author: Cavium Networks
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*
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* Contact: support@caviumnetworks.com
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* This file is part of the OCTEON SDK
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*
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* Copyright (c) 2003-2008 Cavium Networks
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, Version 2, as
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* published by the Free Software Foundation.
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*
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* This file is distributed in the hope that it will be useful, but
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* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
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* NONINFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this file; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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* or visit http://www.gnu.org/licenses/.
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*
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* This file may also be available under a different license from Cavium.
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* Contact Cavium Networks for more information
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***********************license end**************************************/
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/*
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* This module provides system/board information obtained by the bootloader.
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*/
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#ifndef __CVMX_SYSINFO_H__
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#define __CVMX_SYSINFO_H__
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#define OCTEON_SERIAL_LEN 20
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/**
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* Structure describing application specific information.
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* __cvmx_app_init() populates this from the cvmx boot descriptor.
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* This structure is private to simple executive applications, so
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* no versioning is required.
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*
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* This structure must be provided with some fields set in order to
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* use simple executive functions in other applications (Linux kernel,
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* u-boot, etc.) The cvmx_sysinfo_minimal_initialize() function is
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* provided to set the required values in these cases.
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*/
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struct cvmx_sysinfo {
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/* System wide variables */
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/* installed DRAM in system, in bytes */
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uint64_t system_dram_size;
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/* ptr to memory descriptor block */
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void *phy_mem_desc_ptr;
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/* Application image specific variables */
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/* stack top address (virtual) */
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uint64_t stack_top;
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/* heap base address (virtual) */
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uint64_t heap_base;
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/* stack size in bytes */
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uint32_t stack_size;
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/* heap size in bytes */
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uint32_t heap_size;
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/* coremask defining cores running application */
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uint32_t core_mask;
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/* Deprecated, use cvmx_coremask_first_core() to select init core */
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uint32_t init_core;
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/* exception base address, as set by bootloader */
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uint64_t exception_base_addr;
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/* cpu clock speed in hz */
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uint32_t cpu_clock_hz;
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/* dram data rate in hz (data rate = 2 * clock rate */
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uint32_t dram_data_rate_hz;
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uint16_t board_type;
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uint8_t board_rev_major;
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uint8_t board_rev_minor;
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uint8_t mac_addr_base[6];
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uint8_t mac_addr_count;
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char board_serial_number[OCTEON_SERIAL_LEN];
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/*
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* Several boards support compact flash on the Octeon boot
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* bus. The CF memory spaces may be mapped to different
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* addresses on different boards. These values will be 0 if
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* CF is not present. Note that these addresses are physical
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* addresses, and it is up to the application to use the
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* proper addressing mode (XKPHYS, KSEG0, etc.)
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*/
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uint64_t compact_flash_common_base_addr;
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uint64_t compact_flash_attribute_base_addr;
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/*
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* Base address of the LED display (as on EBT3000 board) This
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* will be 0 if LED display not present. Note that this
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* address is a physical address, and it is up to the
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* application to use the proper addressing mode (XKPHYS,
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* KSEG0, etc.)
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*/
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uint64_t led_display_base_addr;
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/* DFA reference clock in hz (if applicable)*/
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uint32_t dfa_ref_clock_hz;
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/* configuration flags from bootloader */
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uint32_t bootloader_config_flags;
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/* Uart number used for console */
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uint8_t console_uart_num;
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};
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/**
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* This function returns the system/board information as obtained
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* by the bootloader.
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*
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*
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* Returns Pointer to the boot information structure
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*
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*/
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extern struct cvmx_sysinfo *cvmx_sysinfo_get(void);
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/**
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* This function is used in non-simple executive environments (such as
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* Linux kernel, u-boot, etc.) to configure the minimal fields that
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* are required to use simple executive files directly.
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*
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* Locking (if required) must be handled outside of this
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* function
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*
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* @phy_mem_desc_ptr: Pointer to global physical memory descriptor
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* (bootmem descriptor) @board_type: Octeon board
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* type enumeration
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*
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* @board_rev_major:
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* Board major revision
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* @board_rev_minor:
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* Board minor revision
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* @cpu_clock_hz:
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* CPU clock freqency in hertz
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*
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* Returns 0: Failure
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* 1: success
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*/
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extern int cvmx_sysinfo_minimal_initialize(void *phy_mem_desc_ptr,
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uint16_t board_type,
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uint8_t board_rev_major,
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uint8_t board_rev_minor,
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uint32_t cpu_clock_hz);
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#endif /* __CVMX_SYSINFO_H__ */
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