+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2000-2009
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* Copy the startup prototype, previously defined in common.h
* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __INIT_H_
#define __INIT_H_ 1
+#include <linux/types.h>
+
+struct global_data;
+
#ifndef __ASSEMBLY__ /* put C only stuff in this section */
+/* Avoid using CONFIG_EFI_STUB directly as we may boot from other loaders */
+#ifdef CONFIG_EFI_STUB
+#define ll_boot_init() false
+#else
+#define ll_boot_init() (!(gd->flags & GD_FLG_SKIP_LL_INIT))
+#endif
+
/*
* Function Prototypes
*/
/* common/board_f.c */
+void board_init_f(ulong dummy);
/**
* arch_cpu_init() - basic cpu-dependent setup for an architecture
* board_f.c for where it is called. If this is not provided, a default
* version (which does nothing) will be used.
*
- * @return: 0 on success, otherwise error
+ * Return: 0 on success, otherwise error
*/
int arch_cpu_init(void);
+/**
+ * arch_cpu_init_dm() - init CPU after driver model is available
+ *
+ * This is called immediately after driver model is available before
+ * relocation. This is similar to arch_cpu_init() but is able to reference
+ * devices
+ *
+ * Return: 0 if OK, -ve on error
+ */
+int arch_cpu_init_dm(void);
+
/**
* mach_cpu_init() - SoC/machine dependent CPU setup
*
* board_f.c for where it is called. If this is not provided, a default
* version (which does nothing) will be used.
*
- * @return: 0 on success, otherwise error
+ * Return: 0 on success, otherwise error
*/
int mach_cpu_init(void);
+/**
+ * arch_fsp_init() - perform firmware support package init
+ *
+ * Where U-Boot relies on binary blobs to handle part of the system init, this
+ * function can be used to set up the blobs. This is used on some Intel
+ * platforms.
+ *
+ * Return: 0
+ */
+int arch_fsp_init(void);
+
+/**
+ * arch_fsp_init() - perform post-relocation firmware support package init
+ *
+ * Where U-Boot relies on binary blobs to handle part of the system init, this
+ * function can be used to set up the blobs. This is used on some Intel
+ * platforms.
+ *
+ * Return: 0
+ */
+int arch_fsp_init_r(void);
+
+int dram_init(void);
+
+/**
+ * dram_init_banksize() - Set up DRAM bank sizes
+ *
+ * This can be implemented by boards to set up the DRAM bank information in
+ * gd->bd->bi_dram(). It is called just before relocation, after dram_init()
+ * is called.
+ *
+ * If this is not provided, a default implementation will try to set up a
+ * single bank. It will do this if CONFIG_NR_DRAM_BANKS and
+ * CONFIG_SYS_SDRAM_BASE are set. The bank will have a start address of
+ * CONFIG_SYS_SDRAM_BASE and the size will be determined by a call to
+ * get_effective_memsize().
+ *
+ * Return: 0 if OK, -ve on error
+ */
+int dram_init_banksize(void);
+
+long get_ram_size(long *base, long size);
+phys_size_t get_effective_memsize(void);
+
+int testdram(void);
+
+/**
+ * arch_reserve_stacks() - Reserve all necessary stacks
+ *
+ * This is used in generic board init sequence in common/board_f.c. Each
+ * architecture could provide this function to tailor the required stacks.
+ *
+ * On entry gd->start_addr_sp is pointing to the suggested top of the stack.
+ * The callee ensures gd->start_add_sp is 16-byte aligned, so architectures
+ * require only this can leave it untouched.
+ *
+ * On exit gd->start_addr_sp and gd->irq_sp should be set to the respective
+ * positions of the stack. The stack pointer(s) will be set to this later.
+ * gd->irq_sp is only required, if the architecture needs it.
+ *
+ * Return: 0 if no error
+ */
+int arch_reserve_stacks(void);
+
+/**
+ * arch_reserve_mmu() - Reserve memory for MMU TLB table
+ *
+ * Architecture-specific routine for reserving memory for the MMU TLB table.
+ * This is used in generic board init sequence in common/board_f.c.
+ *
+ * If an implementation is not provided, it will just be a nop stub.
+ *
+ * Return: 0 if OK
+ */
+int arch_reserve_mmu(void);
+
+/**
+ * init_cache_f_r() - Turn on the cache in preparation for relocation
+ *
+ * Return: 0 if OK, -ve on error
+ */
+int init_cache_f_r(void);
+
+#if !CONFIG_IS_ENABLED(CPU)
+/**
+ * print_cpuinfo() - Display information about the CPU
+ *
+ * Return: 0 if OK, -ve on error
+ */
+int print_cpuinfo(void);
+#endif
+int timer_init(void);
+int misc_init_f(void);
+
+#if defined(CONFIG_DTB_RESELECT)
+int embedded_dtb_select(void);
+#endif
+
+/* common/init/board_init.c */
+extern ulong monitor_flash_len;
+
+/**
+ * ulong board_init_f_alloc_reserve - allocate reserved area
+ * @top: top of the reserve area, growing down.
+ *
+ * This function is called by each architecture very early in the start-up
+ * code to allow the C runtime to reserve space on the stack for writable
+ * 'globals' such as GD and the malloc arena.
+ *
+ * Return: bottom of reserved area
+ */
+ulong board_init_f_alloc_reserve(ulong top);
+
+/**
+ * board_init_f_init_reserve - initialize the reserved area(s)
+ * @base: top from which reservation was done
+ *
+ * This function is called once the C runtime has allocated the reserved
+ * area on the stack. It must initialize the GD at the base of that area.
+ */
+void board_init_f_init_reserve(ulong base);
+
+struct global_data;
+
+/**
+ * arch_setup_gd() - Set up the global_data pointer
+ * @gd_ptr: Pointer to global data
+ *
+ * This pointer is special in some architectures and cannot easily be assigned
+ * to. For example on x86 it is implemented by adding a specific record to its
+ * Global Descriptor Table! So we we provide a function to carry out this task.
+ * For most architectures this can simply be:
+ *
+ * gd = gd_ptr;
+ */
+void arch_setup_gd(struct global_data *gd_ptr);
+
/* common/board_r.c */
+void board_init_r(struct global_data *id, ulong dest_addr)
+ __attribute__ ((noreturn));
+
+int cpu_init_r(void);
+int last_stage_init(void);
+int mac_read_from_eeprom(void);
+int set_cpu_clk_info(void);
+int update_flash_size(int flash_size);
+int arch_early_init_r(void);
+void pci_init(void);
+int misc_init_r(void);
+#if defined(CONFIG_VID)
+int init_func_vid(void);
+#endif
+
+/* common/board_info.c */
+int checkboard(void);
+int show_board_info(void);
+
+/**
+ * Get the uppermost pointer that is valid to access
+ *
+ * Some systems may not map all of their address space. This function allows
+ * boards to indicate what their highest support pointer value is for DRAM
+ * access.
+ *
+ * @param total_size Size of U-Boot (unused?)
+ */
+ulong board_get_usable_ram_top(ulong total_size);
+
+int board_early_init_f(void);
+
+/* manipulate the U-Boot fdt before its relocation */
+int board_fix_fdt(void *rw_fdt_blob);
+int board_late_init(void);
+int board_postclk_init(void); /* after clocks/timebase, before env/serial */
+int board_early_init_r(void);
+
+/* TODO(sjg@chromium.org): Drop this when DM_PCI migration is completed */
+void pci_init_board(void);
+
+void trap_init(unsigned long reloc_addr);
+
+/**
+ * main_loop() - Enter the main loop of U-Boot
+ *
+ * This normally runs the command line.
+ */
+void main_loop(void);
+
+#if defined(CONFIG_ARM)
+void relocate_code(ulong addr_moni);
+#else
+void relocate_code(ulong start_addr_sp, struct global_data *new_gd,
+ ulong relocaddr)
+ __attribute__ ((noreturn));
+#endif
#endif /* __ASSEMBLY__ */
/* Put only stuff here that the assembler can digest */
projects / oweals / u-boot.git / blobdiff