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arm-trusted-firmware-mediatek: add MT7987 DDR4 4BG images

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Add the DDR4_4BG_MODE option, which supports 4GB DDR4 RAM
for the MT7987 and 8GB DDR4 RAM for the MT7988. If this mode
is not enabled, bl2 can only recognize half the size of RAM.

Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
Link: https://github.com/openwrt/openwrt/pull/21000
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Chukun Pan 2025-11-10 18:16:30 +08:00 committed by Hauke Mehrtens
parent 3b14ace444
commit f037a2e8bb
1 changed files with 20 additions and 0 deletions
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20
package/boot/arm-trusted-firmware-mediatek/Makefile
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@ -30,6 +30,7 @@ define Trusted-Firmware-A/Default
BOOT_DEVICE:=
DDR3_FLYBY:=
DDR3_FREQ_1866:=
DDR4_4BG_MODE:=
DDR_TYPE:=
NAND_TYPE:=
BOARD_QFN:=
@ -410,6 +411,14 @@ define Trusted-Firmware-A/mt7987-emmc-comb
DRAM_USE_COMB:=1
endef
define Trusted-Firmware-A/mt7987-emmc-ddr4-4bg
NAME:=MediaTek MT7987 (eMMC, DDR4 4GB)
BOOT_DEVICE:=emmc
BUILD_SUBTARGET:=filogic
PLAT:=mt7987
DDR4_4BG_MODE:=1
endef
define Trusted-Firmware-A/mt7987-nor-comb
NAME:=MediaTek MT7987 (NOR)
BOOT_DEVICE:=nor
@ -426,6 +435,14 @@ define Trusted-Firmware-A/mt7987-sdmmc-comb
DRAM_USE_COMB:=1
endef
define Trusted-Firmware-A/mt7987-sdmmc-ddr4-4bg
NAME:=MediaTek MT7987 (SD card, DDR4 4GB)
BOOT_DEVICE:=sdmmc
BUILD_SUBTARGET:=filogic
PLAT:=mt7987
DDR4_4BG_MODE:=1
endef
define Trusted-Firmware-A/mt7987-spim-nand0-ubi-comb
NAME:=MediaTek MT7987 (SPI-NAND via SPIM, UBI)
BOOT_DEVICE:=spim-nand
@ -670,8 +687,10 @@ TFA_TARGETS:= \
mt7986-spim-nand-ubi-ddr4 \
mt7986-spim-nand-4k-ddr4 \
mt7987-emmc-comb \
mt7987-emmc-ddr4-4bg \
mt7987-nor-comb \
mt7987-sdmmc-comb \
mt7987-sdmmc-ddr4-4bg \
mt7987-spim-nand0-ubi-comb \
mt7987-spim-nand2-ubi-comb \
mt7987-ram-comb \
@ -705,6 +724,7 @@ TFA_MAKE_FLAGS += \
HAVE_DRAM_OBJ_FILE=yes \
$(if $(DDR3_FLYBY),DDR3_FLYBY=1) \
$(if $(DDR3_FREQ_1866),DDR3_FREQ_1866=1) \
$(if $(DDR4_4BG_MODE),DDR4_4BG_MODE=1) \
$(if $(DRAM_USE_COMB),DRAM_USE_COMB=1) \
$(if $(RAM_BOOT_UART_DL),RAM_BOOT_UART_DL=1) \
$(if $(USE_UBI),UBI=1 $(if $(findstring mt7622,$(PLAT)),OVERRIDE_UBI_START_ADDR=0x80000)) \