u-boot.git/board/mediatek/mt7988, branch master

arm: mediatek: mt7988: fix gd->bd->bi_dram[0].size

2026-06-24T15:06:16Z

Use board_get_usable_ram_top() instead of get_effective_memsize() to set gd->ram_top to something <= 4GiB. Both board_get_usable_ram_top() and get_effective_memsize() are used to set gd->ram_top in setup_dest_addr(). However, get_effective_memsize() also sets gd->bd->bi_dram[0].size in dram_init_banksize(), which is undesirable. Prior to commit bddd6bbef3dc ("arm: mediatek: mt7988: drop dram_init_banksize()"), gd->bd->bi_dram[0].size was overridden in a board-specific dram_init_banksize() implementation. When that was removed get_effective_memsize() set gd->bd->bi_dram[0].size to the wrong value because of CFG_MAX_MEM_MAPPED. Rather than continue to use an old-style CFG_ option and the potentially confusing overriding of gd->bd->bi_dram[0].size (it is difficult to see which order the functions that set it are called), we can just use board_get_usable_ram_top() to set gd->ram_top to the correct value instead. This is possible now, thanks to LMB_LIMIT_DMA_BELOW_RAM_TOP being set by default for 64-bit Mediatek ARM SoCs. The CFG_MAX_MEM_MAPPED option is removed since it is no longer needed. The config header and Kconfig option are also removed since that was the last CFG_ option. Reported-by: Rudy Andram Closes: https://lore.kernel.org/u-boot/20260602162233.2418471-1-rmandrad@gmail.com/ Fixes: bddd6bbef3dc ("arm: mediatek: mt7988: drop dram_init_banksize()") Link: https://patch.msgid.link/20260615-mtk-fix-ram-size-v2-4-f72cfc52ce58@baylibre.com Signed-off-by: David Lechner

treewide: Remove empty board_init() function from all boards

2025-07-24T19:30:19Z

Commit 86acdce2ba88 ("common: add config for board_init() call") introduced CONFIG_BOARD_INIT option. This option can be disabled for the boards where board_init() function is not needed. Remove empty board_init() calls for all boards where it's possible, and disable CONFIG_BOARD_INIT in all related defconfigs. This cleanup was made semi-automatically using these scripts: [1]. No functional change, but the binary size for the modified boards is reduced a bit. [1] https://github.com/joe-skb7/uboot-convert-scripts/tree/master/remove-board-init Signed-off-by: Sam Protsenko Tested-by: Adam Ford #imx8mm_beacon Tested-by: Bryan Brattlof Acked-by: Peng Fan #NXP boards

board: mediatek: add MT7988 reference boards

2023-08-03T13:40:50Z

This patch adds general board files based on MT7988 SoCs. MT7988 uses one mmc controller for booting from both SD and eMMC, and the pins of mmc controller booting from SD are also shared with one of spi controllers. So two configs are need for these boot types: 1. mt7988_rfb_defconfig - SPI-NOR, SPI-NAND and eMMC 2. mt7988_sd_rfb_defconfig - SPI-NAND and SD Signed-off-by: Weijie Gao