diff options
| author | Simon Glass <sjg@chromium.org> | 2018-11-15 18:44:09 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-11-26 08:25:37 -0500 |
| commit | b0edea3c27af3bf7b959fa190a7fe9d7881153c5 (patch) | |
| tree | e48319d91713218a49706b7526f147f2d56c7aee /include/handoff.h | |
| parent | 27028f186d17a25507eb7d5c9b852d8555432679 (diff) | |
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>
Diffstat (limited to 'include/handoff.h')
| -rw-r--r-- | include/handoff.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/include/handoff.h b/include/handoff.h new file mode 100644 index 00000000000..aacb0f5ebf2 --- /dev/null +++ b/include/handoff.h @@ -0,0 +1,36 @@ +/* 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 |