X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Finit.h;h=b5a167b6edb0194a08b1de235d3f970a5bb4e013;hb=c2a38411d11d4b4bed5d89990fb5940c2cbaa02e;hp=f952602b2fb3820b8e41e726ac05c6bc933bf93b;hpb=11f86cbaff517da4561ab2ed05354671be6ef7a1;p=oweals%2Fu-boot.git diff --git a/include/init.h b/include/init.h index f952602b2f..b5a167b6ed 100644 --- a/include/init.h +++ b/include/init.h @@ -1,18 +1,28 @@ +/* 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 + +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 */ @@ -28,7 +38,7 @@ void board_init_f(ulong dummy); * 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); @@ -39,7 +49,7 @@ int arch_cpu_init(void); * relocation. This is similar to arch_cpu_init() but is able to reference * devices * - * @return 0 if OK, -ve on error + * Return: 0 if OK, -ve on error */ int arch_cpu_init_dm(void); @@ -51,7 +61,7 @@ int arch_cpu_init_dm(void); * 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); @@ -61,9 +71,22 @@ int mach_cpu_init(void); * 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); /** @@ -79,12 +102,17 @@ int dram_init(void); * CONFIG_SYS_SDRAM_BASE and the size will be determined by a call to * get_effective_memsize(). * - * @return 0 if OK, -ve on error + * 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); + /** - * Reserve all necessary stacks + * 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. @@ -97,14 +125,40 @@ int dram_init_banksize(void); * 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 + * 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 reserve_mmu(void); int misc_init_f(void); + #if defined(CONFIG_DTB_RESELECT) int embedded_dtb_select(void); #endif @@ -114,28 +168,30 @@ 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. * - * @top: top of the reserve area, growing down. - * @return: bottom of reserved area + * 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. - * - * @base: top from which reservation was done */ 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 @@ -143,12 +199,67 @@ void board_init_f_init_reserve(ulong base); * For most architectures this can simply be: * * gd = gd_ptr; - * - * @gd_ptr: Pointer to global data */ -void arch_setup_gd(gd_t *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 */