From 1174c99ab421168221be372bd83a4143bf5f167d Mon Sep 17 00:00:00 2001 From: Ilias Apalodimas Date: Wed, 17 Jun 2026 10:48:19 +0300 Subject: 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 Tested-by: Michal Simek # Versal Gen 2 Vek385 Tested-by: Anshul Dalal Reviewed-by: Simon Glass Signed-off-by: Ilias Apalodimas Tested-by: Christophe Leroy (CS GROUP) --- include/asm-generic/global_data.h | 7 +++++++ include/asm-generic/u-boot.h | 4 ---- 2 files changed, 7 insertions(+), 4 deletions(-) (limited to 'include/asm-generic') 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__ */ -- cgit v1.3.1