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 /common/init | |
| 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 'common/init')
| -rw-r--r-- | common/init/Makefile | 1 | ||||
| -rw-r--r-- | common/init/handoff.c | 47 |
2 files changed, 48 insertions, 0 deletions
diff --git a/common/init/Makefile b/common/init/Makefile index 4902635f53..853b56d1e5 100644 --- a/common/init/Makefile +++ b/common/init/Makefile @@ -5,3 +5,4 @@ # obj-y += board_init.o +obj-$(CONFIG_$(SPL_TPL_)HANDOFF) += handoff.o diff --git a/common/init/handoff.c b/common/init/handoff.c new file mode 100644 index 0000000000..e00b43e6a7 --- /dev/null +++ b/common/init/handoff.c @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Passing basic information from SPL to U-Boot proper + * + * Copyright 2018 Google, Inc + */ + +#include <common.h> +#include <handoff.h> + +DECLARE_GLOBAL_DATA_PTR; + +void handoff_save_dram(struct spl_handoff *ho) +{ + ho->ram_size = gd->ram_size; +#ifdef CONFIG_NR_DRAM_BANKS + { + struct bd_info *bd = gd->bd; + int i; + + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + ho->ram_bank[i].start = bd->bi_dram[i].start; + ho->ram_bank[i].size = bd->bi_dram[i].size; + } + } +#endif +} + +void handoff_load_dram_size(struct spl_handoff *ho) +{ + gd->ram_size = ho->ram_size; +} + +void handoff_load_dram_banks(struct spl_handoff *ho) +{ +#ifdef CONFIG_NR_DRAM_BANKS + { + struct bd_info *bd = gd->bd; + int i; + + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + bd->bi_dram[i].start = ho->ram_bank[i].start; + bd->bi_dram[i].size = ho->ram_bank[i].size; + } + } +#endif +} |