handoff.h
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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Passing basic information from SPL to U-Boot proper
*
* Copyright 2018 Google, Inc
*/
#ifndef __HANDOFF_H
#define __HANDOFF_H
#if CONFIG_IS_ENABLED(HANDOFF)
#include <asm/handoff.h>
/**
* struct spl_handoff - information passed from SPL to U-Boot proper
*
* @ram_size: Value to use for gd->ram_size
*/
struct spl_handoff {
struct arch_spl_handoff arch;
u64 ram_size;
#ifdef CONFIG_NR_DRAM_BANKS
struct {
u64 start;
u64 size;
} ram_bank[CONFIG_NR_DRAM_BANKS];
#endif
};
void handoff_save_dram(struct spl_handoff *ho);
void handoff_load_dram_size(struct spl_handoff *ho);
void handoff_load_dram_banks(struct spl_handoff *ho);
/**
* handoff_arch_save() - Save arch-specific info into the handoff area
*
* This is defined to an empty function by default, but arch-specific code can
* define it to write to spi_handoff->arch. It is called from
* write_spl_handoff().
*
* @ho: Handoff area to fill in
* @return 0 if OK, -ve on error
*/
int handoff_arch_save(struct spl_handoff *ho);
#endif
#endif