0fb79851c3
If no fdt is provided on command line and the new field get_dtb in struct arm_boot_info is set then call it to get a device tree blob. Signed-off-by: John Rigby <john.rigby@linaro.org> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Message-id: 1385140638-10444-4-git-send-email-peter.maydell@linaro.org [PMM: minor tweaks and cleanup] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
77 lines
2.8 KiB
C
77 lines
2.8 KiB
C
/*
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* Misc ARM declarations
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*
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* Copyright (c) 2006 CodeSourcery.
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* Written by Paul Brook
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*
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* This code is licensed under the LGPL.
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*
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*/
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#ifndef ARM_MISC_H
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#define ARM_MISC_H 1
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#include "exec/memory.h"
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#include "hw/irq.h"
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/* armv7m.c */
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qemu_irq *armv7m_init(MemoryRegion *address_space_mem,
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int flash_size, int sram_size,
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const char *kernel_filename, const char *cpu_model);
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/* arm_boot.c */
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struct arm_boot_info {
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uint64_t ram_size;
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const char *kernel_filename;
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const char *kernel_cmdline;
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const char *initrd_filename;
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const char *dtb_filename;
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hwaddr loader_start;
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/* multicore boards that use the default secondary core boot functions
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* need to put the address of the secondary boot code, the boot reg,
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* and the GIC address in the next 3 values, respectively. boards that
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* have their own boot functions can use these values as they want.
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*/
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hwaddr smp_loader_start;
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hwaddr smp_bootreg_addr;
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hwaddr gic_cpu_if_addr;
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int nb_cpus;
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int board_id;
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int (*atag_board)(const struct arm_boot_info *info, void *p);
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/* multicore boards that use the default secondary core boot functions
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* can ignore these two function calls. If the default functions won't
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* work, then write_secondary_boot() should write a suitable blob of
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* code mimicking the secondary CPU startup process used by the board's
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* boot loader/boot ROM code, and secondary_cpu_reset_hook() should
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* perform any necessary CPU reset handling and set the PC for the
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* secondary CPUs to point at this boot blob.
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*/
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void (*write_secondary_boot)(ARMCPU *cpu,
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const struct arm_boot_info *info);
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void (*secondary_cpu_reset_hook)(ARMCPU *cpu,
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const struct arm_boot_info *info);
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/* if a board is able to create a dtb without a dtb file then it
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* sets get_dtb. This will only be used if no dtb file is provided
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* by the user. On success, sets *size to the length of the created
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* dtb, and returns a pointer to it. (The caller must free this memory
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* with g_free() when it has finished with it.) On failure, returns NULL.
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*/
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void *(*get_dtb)(const struct arm_boot_info *info, int *size);
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/* if a board needs to be able to modify a device tree provided by
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* the user it should implement this hook.
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*/
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void (*modify_dtb)(const struct arm_boot_info *info, void *fdt);
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/* Used internally by arm_boot.c */
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int is_linux;
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hwaddr initrd_start;
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hwaddr initrd_size;
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hwaddr entry;
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};
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void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info *info);
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/* Multiplication factor to convert from system clock ticks to qemu timer
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ticks. */
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extern int system_clock_scale;
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#endif /* !ARM_MISC_H */
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