diff options
| author | Ilias Apalodimas <[email protected]> | 2026-06-17 10:48:19 +0300 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2026-06-24 18:13:24 -0600 |
| commit | 1174c99ab421168221be372bd83a4143bf5f167d (patch) | |
| tree | 8cf44beda8b853593a111add53bfab27c0b06293 /include/asm-generic | |
| parent | 47e9c542ee032e89f556adc73c2aeff3acb0e5a9 (diff) | |
treewide: move bi_dram[] from bd to gd
Currently, the bi_dram[] information is stored in the board info
structure (bd). Because bd is only valid after reserve_board(),
dram_init_banksize() must be called late in the initialization process.
This limitation is problematic, as it forces us to rely on a variety of
bespoke functions to determine board RAM, bank memory sizes, and other
early setup requirements.
By moving bi_dram[] into the global data (gd), we can run it earlier.
This is particularly convenient since boards define their own
dram_init_banksize() routines, which do not always rely on parsing
Device Tree (DT) memory nodes.
Additionally, U-Boot defaults to relocating to the top of the first memory
bank. While boards currently use custom functions to override this
behavior, having the DRAM bank information available earlier in gd makes
relocating to a different bank trivial and standardizes the process.
Reviewed-by: Anshul Dalal <[email protected]>
Tested-by: Michal Simek <[email protected]> # Versal Gen 2 Vek385
Tested-by: Anshul Dalal <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Ilias Apalodimas <[email protected]>
Tested-by: Christophe Leroy (CS GROUP) <[email protected]>
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/global_data.h | 7 | ||||
| -rw-r--r-- | include/asm-generic/u-boot.h | 4 |
2 files changed, 7 insertions, 4 deletions
diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h index ba6a10cf2ad..ad7ebb1bbc9 100644 --- a/include/asm-generic/global_data.h +++ b/include/asm-generic/global_data.h @@ -457,6 +457,13 @@ struct global_data { */ struct upl *upl; #endif + /** + * @dram: array describing DRAM banks (start address and size for each bank) + */ + struct { /* RAM configuration */ + phys_addr_t start; + phys_size_t size; + } dram[CONFIG_NR_DRAM_BANKS]; }; #ifndef DO_DEPS_ONLY static_assert(sizeof(struct global_data) == GD_SIZE); diff --git a/include/asm-generic/u-boot.h b/include/asm-generic/u-boot.h index 8c619c1b74a..931fe2f3274 100644 --- a/include/asm-generic/u-boot.h +++ b/include/asm-generic/u-boot.h @@ -59,10 +59,6 @@ struct bd_info { #endif ulong bi_arch_number; /* unique id for this board */ ulong bi_boot_params; /* where this board expects params */ - struct { /* RAM configuration */ - phys_addr_t start; - phys_size_t size; - } bi_dram[CONFIG_NR_DRAM_BANKS]; }; #endif /* __ASSEMBLY__ */ |