u-boot/include/handoff.h
Simon Glass b0edea3c27 spl: Add support for passing handoff info to U-Boot proper
There is some basic informaton that SPL normally wants to pass through to
U-Boot, such as the SDRAM size and bank information.

Mkae use of the new bloblist structure for this. Add a new 'handoff' blob
which is set up in SPL and passed to U-Boot proper. Also adda  test for
sandbox_spl that checks that this works correctly and a new 'sb' command
to show the information passed from SPL.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
2018-11-26 08:25:37 -05:00

36 lines
705 B
C

/* 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);
#endif
#endif