MTK Android修改System分区

Z: k3326_p_hq_rf8637sadevice ockchipcommonBoardConfig.mk

#Calculate partition size from parameter.txt
USE_DEFAULT_PARAMETER := $(shell test -f $(TARGET_DEVICE_DIR)/parameter.txt && echo true)
ifeq ($(strip $(USE_DEFAULT_PARAMETER)), true)
BOARD_SYSTEMIMAGE_PARTITION_SIZE := $(shell python device/rockchip/common/get_partition_size.py $(TARGET_DEVICE_DIR)/parameter.txt system)
BOARD_OEMIMAGE_PARTITION_SIZE := $(shell python device/rockchip/common/get_partition_size.py $(TARGET_DEVICE_DIR)/parameter.txt oem)
BOARD_VENDORIMAGE_PARTITION_SIZE := $(shell python device/rockchip/common/get_partition_size.py $(TARGET_DEVICE_DIR)/parameter.txt vendor)
BOARD_CACHEIMAGE_PARTITION_SIZE := $(shell python device/rockchip/common/get_partition_size.py $(TARGET_DEVICE_DIR)/parameter.txt cache)
BOARD_BOOTIMAGE_PARTITION_SIZE := $(shell python device/rockchip/common/get_partition_size.py $(TARGET_DEVICE_DIR)/parameter.txt boot)
BOARD_DTBOIMG_PARTITION_SIZE := $(shell python device/rockchip/common/get_partition_size.py $(TARGET_DEVICE_DIR)/parameter.txt dtbo)
BOARD_RECOVERYIMAGE_PARTITION_SIZE := $(shell python device/rockchip/common/get_partition_size.py $(TARGET_DEVICE_DIR)/parameter.txt recovery)

#$(info Calculated BOARD_SYSTEMIMAGE_PARTITION_SIZE=$(BOARD_SYSTEMIMAGE_PARTITION_SIZE) use $(TARGET_DEVICE_DIR)/parameter.txt)
else
BOARD_SYSTEMIMAGE_PARTITION_SIZE ?= 1073741824
BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
BOARD_OEMIMAGE_PARTITION_SIZE ?= 536870912
BOARD_VENDORIMAGE_PARTITION_SIZE ?= 536870912
BOARD_BOOTIMAGE_PARTITION_SIZE ?= 41943040
BOARD_RECOVERYIMAGE_PARTITION_SIZE ?= 41943040
BOARD_DTBOIMG_PARTITION_SIZE ?= 8388608
ifneq ($(strip $(TARGET_DEVICE_DIR)),)
#$(info $(TARGET_DEVICE_DIR)/parameter.txt not found! Use default BOARD_SYSTEMIMAGE_PARTITION_SIZE=$(BOARD_SYSTEMIMAGE_PARTITION_SIZE))
endif
endif

rk3326_p_hq_rf8637sadevice ockchip k3326 k3326_midparameter.txt

---

FIRMWARE_VER:9.0
MACHINE_MODEL:RK3326
MACHINE_ID:007
MANUFACTURER: RK3326
MAGIC: 0x5041524B
ATAG: 0x00200800
MACHINE: 3326
CHECK_MASK: 0x80
PWR_HLD: 0,0,A,0,1
TYPE: GPT
CMDLINE:mtdparts=rk29xxnand:0x00002000@0x00004000(uboot),0x00002000@0x00006000(trust),0x00002000@0x00008000(misc),0x00002000@0x0000a000(dtb),0x00002000@0x0000c000(dtbo),0x00000800@0x0000e000(vbmeta),0x00010000@0x0000e800(boot),0x00030000@0x0001e800(recovery),0x00028000@0x0004e800(backup),0x00002000@0x00076800(security),0x00070000@0x00078800(cache),0x00400000@0x000e8800(system),0x00008000@0x004E8800(metadata),0x00070000@0x004F0800(vendor),0x00020000@0x00560800(oem),0x00000400@0x00510800(frp),-@0x00450c00(userdata:grow)
uuid:system=af01642c-9b84-11e8-9b2a-234eb5e198a0

**********************************************************************************************
system分区大小修改：0x00400000@0x000e8800(system)
0x00400000：空间大小---修改这里
0x000e8800：空间地址

例如：0x00400000
2b0000（十六进制）转化为十进制，x 512变为字节 ，除于1024 ，然后在除于1024 ，得到最终的兆字节大小：1440mb

转化公式：
1.2b0000(十六进制)转化为(十进制)为：2949120
2.2949120 x 512字节 = 1509949440
3.1509949440 / 1024 = 1474560 KB
4.1474560 / 1024 = 1440 MB

注意：后面的空间地址=前面的空间大小 + 前面的地址大小，即：

0x00400000@0x000e8800(system),0x00008000@0x004e8800(metadata)

0x00400000 + 0x000e8800 = 0x004e8800