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因為礙於文章篇幅，所以僅列出第一版與最後一版的差異。

Index: arch/arm/configs/android_pxa270_defconfig
==============================================================
=====
--- arch/arm/configs/android_pxa270_defconfig    (.../linux-2.6.25-android-1.0_r1/
arch/arm/configs/android_pxa270_defconfig)     (revision 1)
+++ arch/arm/configs/android_pxa270_defconfig
(.../kernel/linux-2.6.25-android-1.0_r1/arch/arm/configs/android_pxa270_defconfig)
(revision 147)
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.25
-# Tue Dec 23 16:30:14 2008
+# Linux kernel version: 2.6.25[cycdisk@gmail.com]
+# Sat May 16 23:38:41 2009
#
CONFIG_ARM=y
CONFIG_SYS_SUPPORTS_APM_EMULATION=y
@@ -35,7 +35,7 @@
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
+# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
@@ -44,7 +44,7 @@
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
# CONFIG_IKCONFIG is not set
-CONFIG_LOG_BUF_SHIFT=14
+CONFIG_LOG_BUF_SHIFT=16
#CONFIG_CGROUPS is not set
CONFIG_GROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
@@ -82,7 +82,7 @@
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
-# CONFIG_ASHMEM is not set
+CONFIG_ASHMEM=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
#CONFIG_SLAB is not set
@@ -220,18 +220,9 @@
#
#CONFIG_PCI_SYSCALL is not set
#CONFIG_ARCH_SUPPORTS_MSI is not set
-CONFIG_PCCARD=y
-# CONFIG_PCMCIA_DEBUG is not set
-CONFIG_PCMCIA=y
-CONFIG_PCMCIA_LOAD_CIS=y
-CONFIG_PCMCIA_IOCTL=y
+# CONFIG_PCCARD is not set

#
-#PC-card bridges
-#
-CONFIG_PCMCIA_PXA2XX=y
-
-#
#Kernel Features
#
CONFIG_TICK_ONESHOT=y
@@ -290,7 +281,13 @@
#
# Power management options
#
-# CONFIG_PM is not set
+CONFIG_PM=y
+# CONFIG_PM_LEGACY is not set
+# CONFIG_PM_DEBUG is not set
+CONFIG_PM_SLEEP=y
+CONFIG_SUSPEND=y
+CONFIG_SUSPEND_FREEZER=y
+# CONFIG_APM_EMULATION is not set
CONFIG_ARCH_SUSPEND_POSSIBLE=y
#
@@ -393,10 +390,6 @@
# CONFIG_BT_HCIBCM203X is not set
# CONFIG_BT_HCIBPA10X is not set
# CONFIG_BT_HCIBFUSB is not set
-# CONFIG_BT_HCIDTL1 is not set
-# CONFIG_BT_HCIBT3C is not set
-# CONFIG_BT_HCIBLUECARD is not set
-# CONFIG_BT_HCIBTUART is not set
# CONFIG_BT_HCIVHCI is not set
# CONFIG_AF_RXRPC is not set
@@ -426,7 +419,7 @@
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
-CONFIG_DEBUG_DRIVER=y
+# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
@@ -539,7 +532,6 @@
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
-CONFIG_BLK_DEV_IDECS=y
# CONFIG_BLK_DEV_IDECD is not set
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
@@ -597,7 +589,6 @@
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_SCSI_DEBUG is not set
-# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
# CONFIG_ATA is not set
# CONFIG_MD is not set
CONFIG_NETDEVICES=y
@@ -638,7 +629,6 @@
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
-# CONFIG_NET_PCMCIA is not set
# CONFIG_WAN is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
@@ -668,11 +658,31 @@
#
# Input device drivers
#
-# CONFIG_INPUT_KEYBOARD is not set
+CONFIG_INPUT_KEYBOARD=y
+# CONFIG_KEYBOARD_ATKBD is not set
+# CONFIG_KEYBOARD_SUNKBD is not set
+# CONFIG_KEYBOARD_LKKBD is not set
+# CONFIG_KEYBOARD_XTKBD is not set
+# CONFIG_KEYBOARD_NEWTON is not set
+# CONFIG_KEYBOARD_STOWAWAY is not set
+# CONFIG_KEYBOARD_PXA27x is not set
+CONFIG_KEYBOARD_ANDROID=y
+# CONFIG_KEYBOARD_GPIO is not set
+# CONFIG_KEYBOARD_GOLDFISH_EVENTS is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
-# CONFIG_INPUT_TOUCHSCREEN is not set
+CONFIG_INPUT_TOUCHSCREEN=y
+# CONFIG_TOUCHSCREEN_FUJITSU is not set
+# CONFIG_TOUCHSCREEN_GUNZE is not set
+# CONFIG_TOUCHSCREEN_ELO is not set
+# CONFIG_TOUCHSCREEN_MTOUCH is not set
+# CONFIG_TOUCHSCREEN_MK712 is not set
+# CONFIG_TOUCHSCREEN_PENMOUNT is not set
+# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
+# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
+CONFIG_TOUCHSCREEN_UCB1400=y
+# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
# CONFIG_INPUT_MISC is not set
#
@@ -709,14 +719,6 @@
CONFIG_HW_RANDOM=m
# CONFIG_NVRAM is not set
# CONFIG_R3964 is not set
-
-#
-# PCMCIA character devices
-#
-# CONFIG_SYNCLINK_CS is not set
-# CONFIG_CARDMAN_4000 is not set
-# CONFIG_CARDMAN_4040 is not set
-# CONFIG_IPWIRELESS is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_CREATOR_PXA270_LCD is not set
@@ -761,6 +763,7 @@
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_PCF8575 is not set
# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_RTC8564 is not set
# CONFIG_TPS65010 is not set
# CONFIG_SENSORS_MAX6875 is not set
# CONFIG_SENSORS_TSL2550 is not set
@@ -907,9 +910,9 @@
CONFIG_FB=y
+# CONFIG_TOUCHSCREEN_FUJITSU is not set
+# CONFIG_TOUCHSCREEN_GUNZE is not set
+# CONFIG_TOUCHSCREEN_ELO is not set
+# CONFIG_TOUCHSCREEN_MTOUCH is not set
+# CONFIG_TOUCHSCREEN_MK712 is not set
+# CONFIG_TOUCHSCREEN_PENMOUNT is not set
+# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
+# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
+CONFIG_TOUCHSCREEN_UCB1400=y
+# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
# CONFIG_INPUT_MISC is not set
#
@@ -709,14 +719,6 @@
CONFIG_HW_RANDOM=m
# CONFIG_NVRAM is not set
# CONFIG_R3964 is not set
-
-#
-# PCMCIA character devices
-#
-# CONFIG_SYNCLINK_CS is not set
-# CONFIG_CARDMAN_4000 is not set
-# CONFIG_CARDMAN_4040 is not set
-# CONFIG_IPWIRELESS is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_CREATOR_PXA270_LCD is not set
@@ -761,6 +763,7 @@
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_PCF8575 is not set
# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_RTC8564 is not set
# CONFIG_TPS65010 is not set
# CONFIG_SENSORS_MAX6875 is not set
# CONFIG_SENSORS_TSL2550 is not set
@@ -907,9 +910,9 @@
CONFIG_FB=y
# CONFIG_USB_DEVICEFS is not set
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
+# CONFIG_USB_SUSPEND is not set
+# CONFIG_USB_PERSIST is not set
# CONFIG_USB_OTG is not set
#
@@ -1090,7 +1093,6 @@
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
-# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_LIBUSUAL is not set
@@ -1146,12 +1148,62 @@
# CONFIG_NEW_LEDS is not set
# CONFIG_SWITCH is not set
CONFIG_RTC_LIB=y
-# CONFIG_RTC_CLASS is not set
+CONFIG_RTC_CLASS=y
+# CONFIG_RTC_HCTOSYS is not set
+# CONFIG_RTC_DEBUG is not set
#
+# RTC interfaces
+#
+# CONFIG_RTC_INTF_SYSFS is not set
+# CONFIG_RTC_INTF_PROC is not set
+# CONFIG_RTC_INTF_DEV is not set
+# CONFIG_RTC_DRV_TEST is not set
+
+#
+# I2C RTC drivers
+#
+# CONFIG_RTC_DRV_DS1307 is not set
+# CONFIG_RTC_DRV_DS1374 is not set
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+# CONFIG_RTC_DRV_RS5C372 is not set
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+# CONFIG_RTC_DRV_PCF8563 is not set
+# CONFIG_RTC_DRV_PCF8583 is not set
+# CONFIG_RTC_DRV_M41T80 is not set
+# CONFIG_RTC_DRV_S35390A is not set
+
+#
+# SPI RTC drivers
+#
+
+#
+# Platform RTC drivers
+#
+# CONFIG_RTC_DRV_CMOS is not set
+# CONFIG_RTC_DRV_DS1511 is not set
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_V3020 is not set
+
+#
+# on-CPU RTC drivers
+#
+# CONFIG_RTC_DRV_SA1100 is not set
+# CONFIG_RTC_DRV_GOLDFISH is not set
+
+#
# Android
#
# CONFIG_ANDROID_RAM_CONSOLE is not set
+CONFIG_ANDROID_POWER=y
+CONFIG_ANDROID_POWER_ALARM=y
+CONFIG_ANDROID_POWER_STAT=y
CONFIG_ANDROID_LOGGER=y
CONFIG_ANDROID_TIMED_GPIO=y
CONFIG_ANDROID_BINDER_IPC=y
@@ -1163,8 +1215,13 @@
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT2_FS_XIP is not set
-# CONFIG_EXT3_FS is not set
+CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS_XATTR=y
+# CONFIG_EXT3_FS_POSIX_ACL is not set
+# CONFIG_EXT3_FS_SECURITY is not set
# CONFIG_EXT4DEV_FS is not set
+CONFIG_JBD=y
+CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
@@ -1216,7 +1273,16 @@
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
-# CONFIG_YAFFS_FS is not set
+CONFIG_YAFFS_FS=y
+CONFIG_YAFFS_YAFFS1=y
+# CONFIG_YAFFS_9BYTE_TAGS is not set
+# CONFIG_YAFFS_DOES_ECC is not set
+CONFIG_YAFFS_YAFFS2=y
+CONFIG_YAFFS_AUTO_YAFFS2=y
+# CONFIG_YAFFS_DISABLE_LAZY_LOAD is not set
+# CONFIG_YAFFS_DISABLE_WIDE_TNODES is not set
+# CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED is not set
+CONFIG_YAFFS_SHORT_NAMES_IN_RAM=y
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_FS_DEBUG=0
CONFIG_JFFS2_FS_WRITEBUFFER=y
@@ -1349,9 +1415,9 @@
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
-CONFIG_DEBUG_KOBJECT=y
+# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
-CONFIG_DEBUG_INFO=y
+# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
@@ -1363,10 +1429,9 @@
# CONFIG_LATENCYTOP is not set
# CONFIG_SAMPLES is not set
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
+# CONFIG_DEBUG_ERRORS is not set
# CONFIG_DEBUG_STACK_USAGE is not set
-CONFIG_DEBUG_LL=y
-# CONFIG_DEBUG_ICEDCC is not set
+# CONFIG_DEBUG_LL is not set

 #
 # Security options
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