04b6fa8330
facilities as well as support for the Octeon 2 family of SoCs.
XXX Note that with our antediluvian assembler, we can't support some Octeon 2
instructions and fall back to using the old ones instead.
176 lines
6.2 KiB
C
176 lines
6.2 KiB
C
/***********************license start***************
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* Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights
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* reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Cavium Networks nor the names of
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* its contributors may be used to endorse or promote products
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* derived from this software without specific prior written
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* permission.
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* This Software, including technical data, may be subject to U.S. export control
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* laws, including the U.S. Export Administration Act and its associated
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* regulations, and may be subject to export or import regulations in other
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* countries.
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
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* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
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* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
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* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
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* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
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* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
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* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
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* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
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* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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***********************license end**************************************/
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/**
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* @file
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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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* <hr>$Revision: 49448 $<hr>
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*
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*/
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#ifndef __CVMX_SYSINFO_H__
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#define __CVMX_SYSINFO_H__
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#ifndef CVMX_BUILD_FOR_LINUX_KERNEL
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#include "cvmx-app-init.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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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 no
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* 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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*/
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struct cvmx_sysinfo {
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/* System wide variables */
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uint64_t system_dram_size; /**< installed DRAM in system, in bytes */
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uint64_t phy_mem_desc_addr; /**< Address of the memory descriptor block */
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/* Application image specific variables */
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uint64_t stack_top; /**< stack top address (virtual) */
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uint64_t heap_base; /**< heap base address (virtual) */
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uint32_t stack_size; /**< stack size in bytes */
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uint32_t heap_size; /**< heap size in bytes */
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uint32_t core_mask; /**< coremask defining cores running application */
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uint32_t init_core; /**< Deprecated, use cvmx_coremask_first_core() to select init core */
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uint64_t exception_base_addr; /**< exception base address, as set by bootloader */
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uint32_t cpu_clock_hz; /**< cpu clock speed in hz */
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uint32_t dram_data_rate_hz; /**< dram data rate in hz (data rate = 2 * clock rate */
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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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uint32_t dfa_ref_clock_hz; /**< DFA reference clock in hz (if applicable)*/
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uint32_t bootloader_config_flags; /**< configuration flags from bootloader */
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uint8_t console_uart_num; /** < Uart number used for console */
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};
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#ifndef CVMX_BUILD_FOR_LINUX_KERNEL
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typedef struct cvmx_sysinfo cvmx_sysinfo_t;
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#endif
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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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* @return 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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#ifndef CVMX_BUILD_FOR_LINUX_KERNEL
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/**
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* This function is used in non-simple executive environments (such as Linux kernel, u-boot, etc.)
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* to configure the minimal fields that are required to use
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* 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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* @param phy_mem_desc_addr
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* Address of the global physical memory descriptor (bootmem
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* descriptor)
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* @param board_type Octeon board type enumeration
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*
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* @param board_rev_major
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* Board major revision
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* @param board_rev_minor
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* Board minor revision
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* @param cpu_clock_hz
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* CPU clock freqency in hertz
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*
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* @return 0: Failure
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* 1: success
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*/
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extern int cvmx_sysinfo_minimal_initialize(uint64_t phy_mem_desc_addr, uint16_t board_type, uint8_t board_rev_major,
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uint8_t board_rev_minor, uint32_t cpu_clock_hz);
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#endif
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#ifdef CVMX_BUILD_FOR_LINUX_USER
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/**
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* Initialize the sysinfo structure when running on
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* Octeon under Linux userspace
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*/
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extern void cvmx_sysinfo_linux_userspace_initialize(void);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* __CVMX_SYSINFO_H__ */
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