xref: /openbmc/u-boot/include/handoff.h (revision 9450ab2b)
1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * Passing basic information from SPL to U-Boot proper
4  *
5  * Copyright 2018 Google, Inc
6  */
7 
8 #ifndef __HANDOFF_H
9 #define __HANDOFF_H
10 
11 #if CONFIG_IS_ENABLED(HANDOFF)
12 
13 #include <asm/handoff.h>
14 
15 /**
16  * struct spl_handoff - information passed from SPL to U-Boot proper
17  *
18  * @ram_size: Value to use for gd->ram_size
19  */
20 struct spl_handoff {
21 	struct arch_spl_handoff arch;
22 	u64 ram_size;
23 #ifdef CONFIG_NR_DRAM_BANKS
24 	struct {
25 		u64 start;
26 		u64 size;
27 	} ram_bank[CONFIG_NR_DRAM_BANKS];
28 #endif
29 };
30 
31 void handoff_save_dram(struct spl_handoff *ho);
32 void handoff_load_dram_size(struct spl_handoff *ho);
33 void handoff_load_dram_banks(struct spl_handoff *ho);
34 #endif
35 
36 #endif
37