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186 lines
4.7 KiB
186 lines
4.7 KiB
/* |
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* This file is subject to the terms and conditions of the GNU General Public |
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* License. See the file COPYING in the main directory of this archive |
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* for more details. |
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* |
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* Copyright (C) 1995, 1996, 2003 by Ralf Baechle |
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* Copyright (C) 1995, 1996 Andreas Busse |
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* Copyright (C) 1995, 1996 Stoned Elipot |
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* Copyright (C) 1995, 1996 Paul M. Antoine. |
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* Copyright (C) 2009 Zhang Le |
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*/ |
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#ifndef _ASM_BOOTINFO_H |
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#define _ASM_BOOTINFO_H |
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#include <linux/types.h> |
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#include <asm/setup.h> |
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/* |
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* The MACH_ IDs are sort of equivalent to PCI product IDs. As such the |
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* numbers do not necessarily reflect technical relations or similarities |
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* between systems. |
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*/ |
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/* |
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* Valid machtype values for group unknown |
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*/ |
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#define MACH_UNKNOWN 0 /* whatever... */ |
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/* |
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* Valid machtype for group DEC |
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*/ |
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#define MACH_DSUNKNOWN 0 |
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#define MACH_DS23100 1 /* DECstation 2100 or 3100 */ |
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#define MACH_DS5100 2 /* DECsystem 5100 */ |
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#define MACH_DS5000_200 3 /* DECstation 5000/200 */ |
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#define MACH_DS5000_1XX 4 /* DECstation 5000/120, 125, 133, 150 */ |
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#define MACH_DS5000_XX 5 /* DECstation 5000/20, 25, 33, 50 */ |
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#define MACH_DS5000_2X0 6 /* DECstation 5000/240, 260 */ |
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#define MACH_DS5400 7 /* DECsystem 5400 */ |
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#define MACH_DS5500 8 /* DECsystem 5500 */ |
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#define MACH_DS5800 9 /* DECsystem 5800 */ |
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#define MACH_DS5900 10 /* DECsystem 5900 */ |
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/* |
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* Valid machtype for group Mikrotik |
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*/ |
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#define MACH_MIKROTIK_RB532 0 /* Mikrotik RouterBoard 532 */ |
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#define MACH_MIKROTIK_RB532A 1 /* Mikrotik RouterBoard 532A */ |
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/* |
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* Valid machtype for Loongson family |
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*/ |
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enum loongson2ef_machine_type { |
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MACH_LOONGSON_UNKNOWN, |
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MACH_LEMOTE_FL2E, |
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MACH_LEMOTE_FL2F, |
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MACH_LEMOTE_ML2F7, |
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MACH_LEMOTE_YL2F89, |
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MACH_DEXXON_GDIUM2F10, |
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MACH_LEMOTE_NAS, |
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MACH_LEMOTE_LL2F, |
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MACH_LOONGSON_END |
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}; |
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/* |
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* Valid machtype for group INGENIC |
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*/ |
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enum ingenic_machine_type { |
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MACH_INGENIC_UNKNOWN, |
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MACH_INGENIC_JZ4720, |
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MACH_INGENIC_JZ4725, |
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MACH_INGENIC_JZ4725B, |
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MACH_INGENIC_JZ4730, |
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MACH_INGENIC_JZ4740, |
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MACH_INGENIC_JZ4750, |
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MACH_INGENIC_JZ4755, |
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MACH_INGENIC_JZ4760, |
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MACH_INGENIC_JZ4770, |
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MACH_INGENIC_JZ4775, |
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MACH_INGENIC_JZ4780, |
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MACH_INGENIC_X1000, |
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MACH_INGENIC_X1000E, |
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MACH_INGENIC_X1830, |
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MACH_INGENIC_X2000, |
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MACH_INGENIC_X2000E, |
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}; |
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extern char *system_type; |
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const char *get_system_type(void); |
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extern unsigned long mips_machtype; |
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extern void detect_memory_region(phys_addr_t start, phys_addr_t sz_min, phys_addr_t sz_max); |
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extern void prom_init(void); |
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extern void prom_free_prom_memory(void); |
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extern void prom_cleanup(void); |
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extern void free_init_pages(const char *what, |
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unsigned long begin, unsigned long end); |
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extern void (*free_init_pages_eva)(void *begin, void *end); |
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/* |
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* Initial kernel command line, usually setup by prom_init() |
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*/ |
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extern char arcs_cmdline[COMMAND_LINE_SIZE]; |
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/* |
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* Registers a0, a1, a3 and a4 as passed to the kernel entry by firmware |
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*/ |
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extern unsigned long fw_arg0, fw_arg1, fw_arg2, fw_arg3; |
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#ifdef CONFIG_USE_OF |
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#include <linux/libfdt.h> |
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#include <linux/of_fdt.h> |
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extern char __appended_dtb[]; |
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static inline void *get_fdt(void) |
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{ |
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if (IS_ENABLED(CONFIG_MIPS_RAW_APPENDED_DTB) || |
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IS_ENABLED(CONFIG_MIPS_ELF_APPENDED_DTB)) |
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if (fdt_magic(&__appended_dtb) == FDT_MAGIC) |
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return &__appended_dtb; |
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if (fw_arg0 == -2) /* UHI interface */ |
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return (void *)fw_arg1; |
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if (IS_ENABLED(CONFIG_BUILTIN_DTB)) |
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if (&__dtb_start != &__dtb_end) |
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return &__dtb_start; |
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return NULL; |
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} |
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#endif |
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/* |
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* Platform memory detection hook called by arch_mem_init() |
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*/ |
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extern void plat_mem_setup(void); |
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#ifdef CONFIG_SWIOTLB |
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/* |
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* Optional platform hook to call swiotlb_setup(). |
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*/ |
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extern void plat_swiotlb_setup(void); |
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#else |
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static inline void plat_swiotlb_setup(void) {} |
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#endif /* CONFIG_SWIOTLB */ |
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#ifdef CONFIG_USE_OF |
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/** |
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* plat_get_fdt() - Return a pointer to the platform's device tree blob |
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* |
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* This function provides a platform independent API to get a pointer to the |
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* flattened device tree blob. The interface between bootloader and kernel |
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* is not consistent across platforms so it is necessary to provide this |
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* API such that common startup code can locate the FDT. |
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* |
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* This is used by the KASLR code to get command line arguments and random |
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* seed from the device tree. Any platform wishing to use KASLR should |
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* provide this API and select SYS_SUPPORTS_RELOCATABLE. |
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* |
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* Return: Pointer to the flattened device tree blob. |
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*/ |
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extern void *plat_get_fdt(void); |
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#ifdef CONFIG_RELOCATABLE |
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/** |
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* plat_fdt_relocated() - Update platform's information about relocated dtb |
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* |
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* This function provides a platform-independent API to set platform's |
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* information about relocated DTB if it needs to be moved due to kernel |
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* relocation occurring at boot. |
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*/ |
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void plat_fdt_relocated(void *new_location); |
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#endif /* CONFIG_RELOCATABLE */ |
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#endif /* CONFIG_USE_OF */ |
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#endif /* _ASM_BOOTINFO_H */
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