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Diffstat (limited to 'arch/mips/include/asm/octeon/cvmx-sysinfo.h')
| -rw-r--r-- | arch/mips/include/asm/octeon/cvmx-sysinfo.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/arch/mips/include/asm/octeon/cvmx-sysinfo.h b/arch/mips/include/asm/octeon/cvmx-sysinfo.h new file mode 100644 index 000000000000..61dd5741afe4 --- /dev/null +++ b/arch/mips/include/asm/octeon/cvmx-sysinfo.h @@ -0,0 +1,152 @@ +/***********************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__ */ |