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45 * Interface to Octeon boot structure
47 * <hr>$Revision: $<hr>
50 #ifndef __OCTEON_BOOT_INFO_H__
51 #define __OCTEON_BOOT_INFO_H__
53 #ifdef CVMX_BUILD_FOR_LINUX_KERNEL
54 #include <linux/types.h>
60 * This structure is access by bootloader, Linux kernel and the Linux
61 * user space utility "bootoct".
63 * In the bootloader, this structure is accessed by assembly code in start.S,
64 * so any changes to content or size must be reflected there as well.
66 * This is placed at a fixed address in DRAM, so that cores can access it
67 * when they come out of reset. It is used to setup the minimal bootloader
68 * runtime environment (stack, but no heap, global data ptr) that is needed
69 * by the non-boot cores to setup the environment for the applications.
70 * The boot_info_addr is the address of a boot_info_block_t structure
71 * which contains more core-specific information.
73 * The Linux kernel and the Linux bootoct utility access this structure for
74 * implementing CPU hotplug functionality and booting of idle cores with SE
80 /* First stage address - in ram instead of flash */
82 /* Setup code for application, NOT application entry point */
83 uint32_t app_start_func_addr;
84 /* k0 is used for global data - needs to be passed to other cores */
86 /* Address of boot info block structure */
87 uint64_t boot_info_addr;
88 uint32_t flags; /* flags */
93 * Definition of a data structure setup by the bootloader to enable Linux to
94 * launch SE apps on idle cores.
97 struct linux_app_boot_info
99 uint32_t labi_signature;
100 uint32_t start_core0_addr;
101 uint32_t avail_coremask;
102 uint32_t pci_console_active;
103 uint32_t icache_prefetch_disable;
104 uint64_t InitTLBStart_addr;
105 uint32_t start_app_addr;
106 uint32_t cur_exception_base;
107 uint32_t no_mark_private_data;
108 uint32_t compact_flash_common_base_addr;
109 uint32_t compact_flash_attribute_base_addr;
110 uint32_t led_display_base_addr;
111 #ifndef __OCTEON_NEWLIB__
112 #if defined(__U_BOOT__) || !defined(__KERNEL__)
117 typedef struct linux_app_boot_info linux_app_boot_info_t;
121 /* If not to copy a lot of bootloader's structures
122 here is only offset of requested member */
123 #define AVAIL_COREMASK_OFFSET_IN_LINUX_APP_BOOT_BLOCK 0x765c
125 /* hardcoded in bootloader */
126 #define LABI_ADDR_IN_BOOTLOADER 0x700
128 #define LINUX_APP_BOOT_BLOCK_NAME "linux-app-boot"
130 #define LABI_SIGNATURE 0xAABBCC01
132 /* from uboot-headers/octeon_mem_map.h */
133 #if defined(CVMX_BUILD_FOR_LINUX_KERNEL) || defined(__OCTEON_NEWLIB__)
134 #define EXCEPTION_BASE_INCR (4 * 1024)
137 #define OCTEON_NUM_CORES 16
138 /* Increment size for exception base addresses (4k minimum) */
139 #define EXCEPTION_BASE_BASE 0
140 #define BOOTLOADER_PRIV_DATA_BASE (EXCEPTION_BASE_BASE + 0x800)
141 #define BOOTLOADER_BOOT_VECTOR (BOOTLOADER_PRIV_DATA_BASE)
142 #define BOOTLOADER_DEBUG_TRAMPOLINE (BOOTLOADER_BOOT_VECTOR + BOOT_VECTOR_SIZE) /* WORD */
143 #define BOOTLOADER_DEBUG_TRAMPOLINE_CORE (BOOTLOADER_DEBUG_TRAMPOLINE + 4) /* WORD */
145 #define OCTEON_EXCEPTION_VECTOR_BLOCK_SIZE (OCTEON_NUM_CORES*EXCEPTION_BASE_INCR) /* 16 4k blocks */
146 #define BOOTLOADER_DEBUG_REG_SAVE_BASE (EXCEPTION_BASE_BASE + OCTEON_EXCEPTION_VECTOR_BLOCK_SIZE)
148 #define BOOT_VECTOR_NUM_WORDS (8)
149 #define BOOT_VECTOR_SIZE ((OCTEON_NUM_CORES*4)*BOOT_VECTOR_NUM_WORDS)
152 #endif /* __OCTEON_BOOT_INFO_H__ */