summaryrefslogtreecommitdiff
path: root/board/mediatek/mt7987
AgeCommit message (Collapse)Author
2026-06-24arm: mediatek: mt7987: fix gd->bd->bi_dram[0].sizeDavid Lechner
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 56183fb025c2 ("arm: mediatek: mt7987: 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. On mt7987, there is already an implementation of board_get_usable_ram_top() for other reasons, so it is modified to also limit ram_top to 4GiB (mt7987 is currently the only thing that sets CONFIG_MTK_TZ_MOVABLE=y so it is safe to change this here without unintentional side-effects). 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. Fixes: 56183fb025c2 ("arm: mediatek: mt7987: drop dram_init_banksize()") Link: https://patch.msgid.link/[email protected] Signed-off-by: David Lechner <[email protected]>
2025-07-24treewide: Remove empty board_init() function from all boardsSam Protsenko
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 <[email protected]> Tested-by: Adam Ford <[email protected]> #imx8mm_beacon Tested-by: Bryan Brattlof <[email protected]> Acked-by: Peng Fan <[email protected]> #NXP boards
2025-01-30board: mediatek: add MT7987 reference boardsWeijie Gao
This patch adds general board files based on MT7987 SoC. MT7987 uses one mmc controller for booting from both SD and eMMC, and the pins of mmc controller are also shared with one spi controller. So three configs are need for these boot types: 1. mt7987_rfb_defconfig - SPI-NOR (spi2) and SPI-NAND (spi0) 2. mt7987_emmc_rfb_defconfig - eMMC + SPI-NOR (spi2) 3. mt7987_sd_rfb_defconfig - SD + SPI-NOR (spi2) Note: spi2 also supports booting from SPI-NAND, but not the default option. Signed-off-by: Sam Shih <[email protected]> Signed-off-by: Weijie Gao <[email protected]>