tegra: colibri_t20: optimised configuration

Optimise kernel configuration in the following areas:
- limit CGROUP options
- OPTIMIZE_FOR_SIZE
- no more HARMONY, VENTANA, KAEN, PAZ00, TRIMSLICE, WARIO or WHISTLER specific HW support
- ARM_ERRATA_752520
- VMSPLIT_2G
- no more IP_MULTICAST, IP_PNP_BOOTP, IP_PNP_RARP, TCP_CONG_ADVANCED or IPV6 support
- no more NETFILTER_XT support
- support Ambicom WL250N-USB Wireless 802.11b/g/n (V1.0a) with Ralink RT3070 chipset (Note: proprietary rt2870.bin firmware required)
- UBI support
- no more CONFIG_MD or CONFIG_DM support
- no more CONFIG_PPP_FILTER or CONFIG_PPP_SYNC_TTY support
- no more legacy joystick and PS/2 keyboard/mouse support
- provision for external octal UART support
- provision for analog input support
- no more CONFIG_TEGRA_CAMERA or CONFIG_TEGRA_DTV support
- no more CONFIG_TEGRA_DSI or CONFIG_TEGRA_NVHDCP support
- no more CONFIG_LCD_CLASS_DEVICE support
- CONFIG_HIDRAW and CONFIG_USB_HIDDEV required for Toradex Oak
- CONFIG_USB_SERIAL_GENERIC instead of CONFIG_USB_SERIAL_OPTION
- CONFIG_USB_ETH failed to build
- no more CONFIG_MMC_TEST support
- no more CONFIG_MSDOS_FS support
- no more CONFIG_LOCKUP_DETECTOR, CONFIG_DEBUG_SLAB, CONFIG_DEBUG_MUTEXES or CONFIG_DEBUG_SG support
- no more CONFIG_CRYPTO_TEST support

1 files changed, 34 insertions, 139 deletions

diff --git a/arch/arm/configs/colibri_t20_defconfig b/arch/arm/configs/colibri_t20_defconfig
index 175df0e21637..2332b4644654 100644
--- a/arch/arm/configs/colibri_t20_defconfig
+++ b/arch/arm/configs/colibri_t20_defconfig
@@ -7,17 +7,6 @@ CONFIG_TASK_IO_ACCOUNTING=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_CGROUPS=y
-CONFIG_CGROUP_DEBUG=y
-CONFIG_CGROUP_FREEZER=y
-CONFIG_CGROUP_DEVICE=y
-CONFIG_CPUSETS=y
-CONFIG_CGROUP_CPUACCT=y
-CONFIG_RESOURCE_COUNTERS=y
-CONFIG_CGROUP_MEM_RES_CTLR=y
-CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
-CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED=y
-CONFIG_CGROUP_SCHED=y
-CONFIG_RT_GROUP_SCHED=y
 CONFIG_BLK_CGROUP=y
 CONFIG_NAMESPACES=y
 CONFIG_UTS_NS=y
@@ -26,10 +15,13 @@ CONFIG_USER_NS=y
 CONFIG_PID_NS=y
 CONFIG_NET_NS=y
 CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 # CONFIG_SYSCTL_SYSCALL is not set
 CONFIG_KALLSYMS_ALL=y
 # CONFIG_ELF_CORE is not set
 CONFIG_EMBEDDED=y
+# CONFIG_PERF_EVENTS is not set
+# CONFIG_PCI_QUIRKS is not set
 CONFIG_SLAB=y
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=y
@@ -40,27 +32,19 @@ CONFIG_MODULE_FORCE_UNLOAD=y
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARCH_TEGRA=y
-CONFIG_GPIO_PCA953X=y
 CONFIG_MACH_COLIBRI_T20=y
-CONFIG_MACH_HARMONY=y
-CONFIG_MACH_VENTANA=y
-CONFIG_MACH_KAEN=y
-CONFIG_MACH_PAZ00=y
-CONFIG_MACH_TRIMSLICE=y
-CONFIG_MACH_WARIO=y
-CONFIG_MACH_WHISTLER=y
 CONFIG_TEGRA_PWM=y
 CONFIG_TEGRA_EMC_SCALING_ENABLE=y
 CONFIG_TEGRA_CLOCK_DEBUG_WRITE=y
 CONFIG_USB_HOTPLUG=y
-CONFIG_TEGRA_USB_MODEM_POWER=y
 CONFIG_TEGRA_PREINIT_CLOCKS=y
-CONFIG_TEGRA_PREPOWER_WIFI=y
 CONFIG_ARM_ERRATA_720789=y
 CONFIG_ARM_ERRATA_751472=y
+CONFIG_ARM_ERRATA_752520=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_SMP=y
+CONFIG_VMSPLIT_2G=y
 CONFIG_NR_CPUS=2
 CONFIG_PREEMPT=y
 CONFIG_AEABI=y
@@ -82,11 +66,8 @@ CONFIG_PACKET=y
 CONFIG_UNIX=y
 CONFIG_NET_KEY=y
 CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
 CONFIG_IP_PNP=y
 CONFIG_IP_PNP_DHCP=y
-CONFIG_IP_PNP_BOOTP=y
-CONFIG_IP_PNP_RARP=y
 CONFIG_INET_AH=m
 CONFIG_INET_ESP=y
 CONFIG_INET_IPCOMP=m
@@ -95,21 +76,7 @@ CONFIG_INET_XFRM_MODE_TUNNEL=m
 CONFIG_INET_XFRM_MODE_BEET=m
 # CONFIG_INET_LRO is not set
 # CONFIG_INET_DIAG is not set
-CONFIG_TCP_CONG_ADVANCED=y
-CONFIG_TCP_CONG_CUBIC=m
-CONFIG_TCP_CONG_VEGAS=m
-CONFIG_TCP_CONG_VENO=m
-CONFIG_TCP_CONG_ILLINOIS=m
-CONFIG_IPV6=y
-CONFIG_IPV6_PRIVACY=y
-CONFIG_IPV6_ROUTER_PREF=y
-CONFIG_IPV6_OPTIMISTIC_DAD=y
-CONFIG_INET6_AH=y
-CONFIG_INET6_ESP=y
-CONFIG_INET6_IPCOMP=y
-CONFIG_IPV6_MIP6=y
-CONFIG_IPV6_TUNNEL=y
-CONFIG_IPV6_MULTIPLE_TABLES=y
+# CONFIG_IPV6 is not set
 # CONFIG_ANDROID_PARANOID_NETWORK is not set
 CONFIG_NETFILTER=y
 CONFIG_NETFILTER_NETLINK_LOG=y
@@ -120,7 +87,6 @@ CONFIG_NF_CT_PROTO_SCTP=y
 CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=y
 CONFIG_NF_CONNTRACK_FTP=y
-CONFIG_NF_CONNTRACK_H323=y
 CONFIG_NF_CONNTRACK_IRC=y
 CONFIG_NF_CONNTRACK_NETBIOS_NS=y
 CONFIG_NF_CONNTRACK_PPTP=y
@@ -128,32 +94,6 @@ CONFIG_NF_CONNTRACK_SANE=y
 CONFIG_NF_CONNTRACK_SIP=y
 CONFIG_NF_CONNTRACK_TFTP=y
 CONFIG_NETFILTER_TPROXY=y
-CONFIG_NETFILTER_XT_TARGET_CLASSIFY=y
-CONFIG_NETFILTER_XT_TARGET_CONNMARK=y
-CONFIG_NETFILTER_XT_TARGET_MARK=y
-CONFIG_NETFILTER_XT_TARGET_NFQUEUE=y
-CONFIG_NETFILTER_XT_MATCH_COMMENT=y
-CONFIG_NETFILTER_XT_MATCH_CONNBYTES=y
-CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=y
-CONFIG_NETFILTER_XT_MATCH_CONNMARK=y
-CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
-CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=y
-CONFIG_NETFILTER_XT_MATCH_HELPER=y
-CONFIG_NETFILTER_XT_MATCH_IPRANGE=y
-CONFIG_NETFILTER_XT_MATCH_LENGTH=y
-CONFIG_NETFILTER_XT_MATCH_LIMIT=y
-CONFIG_NETFILTER_XT_MATCH_MAC=y
-CONFIG_NETFILTER_XT_MATCH_MARK=y
-CONFIG_NETFILTER_XT_MATCH_POLICY=y
-CONFIG_NETFILTER_XT_MATCH_PKTTYPE=y
-CONFIG_NETFILTER_XT_MATCH_QTAGUID=y
-CONFIG_NETFILTER_XT_MATCH_QUOTA=y
-CONFIG_NETFILTER_XT_MATCH_SOCKET=y
-CONFIG_NETFILTER_XT_MATCH_STATE=y
-CONFIG_NETFILTER_XT_MATCH_STATISTIC=y
-CONFIG_NETFILTER_XT_MATCH_STRING=y
-CONFIG_NETFILTER_XT_MATCH_TIME=y
-CONFIG_NETFILTER_XT_MATCH_U32=y
 CONFIG_NF_CONNTRACK_IPV4=y
 CONFIG_IP_NF_IPTABLES=y
 CONFIG_IP_NF_MATCH_AH=y
@@ -170,7 +110,6 @@ CONFIG_IP_NF_MANGLE=y
 CONFIG_IP_NF_ARPTABLES=y
 CONFIG_IP_NF_ARPFILTER=y
 CONFIG_IP_NF_ARP_MANGLE=y
-CONFIG_IP6_NF_IPTABLES=y
 CONFIG_NET_SCHED=y
 CONFIG_NET_SCH_HTB=y
 CONFIG_NET_SCH_INGRESS=y
@@ -193,7 +132,7 @@ CONFIG_BT_HCIUART_H4=y
 CONFIG_BT_HCIUART_LL=y
 CONFIG_BT_BLUESLEEP=y
 CONFIG_CFG80211=y
-CONFIG_RFKILL=y
+CONFIG_MAC80211=y
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_FIRMWARE_IN_KERNEL is not set
@@ -203,87 +142,60 @@ CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_NAND_TEGRA=y
 CONFIG_MTD_NAND=y
+CONFIG_MTD_UBI=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_MISC_DEVICES=y
-CONFIG_AD525X_DPOT=y
-CONFIG_AD525X_DPOT_I2C=y
-CONFIG_APDS9802ALS=y
-CONFIG_ISL29003=y
-CONFIG_SENSORS_NCT1008=y
 CONFIG_UID_STAT=y
-CONFIG_BCM4329_RFKILL=y
 CONFIG_TEGRA_CRYPTO_DEV=y
-CONFIG_MPU_SENSORS_TIMERIRQ=y
-CONFIG_MPU_SENSORS_MPU3050=m
-CONFIG_MPU_SENSORS_KXTF9=m
-CONFIG_MPU_SENSORS_AK8963=m
-CONFIG_MPU_SENSORS_AK8975=m
+# CONFIG_INV_SENSORS is not set
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_BLK_DEV_SR=y
 CONFIG_BLK_DEV_SR_VENDOR=y
 CONFIG_CHR_DEV_SG=y
 CONFIG_SCSI_MULTI_LUN=y
-CONFIG_MD=y
-CONFIG_BLK_DEV_DM=y
-CONFIG_DM_CRYPT=y
-CONFIG_DM_UEVENT=y
 CONFIG_NETDEVICES=y
 CONFIG_DUMMY=y
-CONFIG_R8169=y
+# CONFIG_NETDEV_1000 is not set
 # CONFIG_NETDEV_10000 is not set
-CONFIG_BCM4329=m
-CONFIG_BCM4329_FIRST_SCAN=y
-CONFIG_BCM4329_FW_PATH="/lib/firmware/bcm4329/fw_bcm4329.bin"
-CONFIG_BCM4329_NVRAM_PATH="/lib/firmware/nvram_4329.txt"
-CONFIG_BCM4329_WIFI_CONTROL_FUNC=y
-CONFIG_USB_CATC=y
-CONFIG_USB_KAWETH=y
-CONFIG_USB_PEGASUS=y
-CONFIG_USB_RTL8150=y
+CONFIG_RT2X00=y
+CONFIG_RT2800USB=y
 CONFIG_USB_USBNET=y
-CONFIG_USB_NET_DM9601=y
-CONFIG_USB_NET_SMSC75XX=y
-CONFIG_USB_NET_SMSC95XX=y
+# CONFIG_USB_NET_CDC_NCM is not set
 # CONFIG_USB_NET_NET1080 is not set
-CONFIG_USB_NET_MCS7830=y
+# CONFIG_USB_BELKIN is not set
 # CONFIG_USB_NET_ZAURUS is not set
 CONFIG_PPP=y
-CONFIG_PPP_FILTER=y
 CONFIG_PPP_ASYNC=y
-CONFIG_PPP_SYNC_TTY=y
 CONFIG_PPP_DEFLATE=y
 CONFIG_PPP_BSDCOMP=y
 CONFIG_PPP_MPPE=y
 CONFIG_PPPOLAC=y
 CONFIG_PPPOPNS=y
-CONFIG_INPUT_JOYDEV=y
+# CONFIG_INPUT_MOUSEDEV is not set
 CONFIG_INPUT_EVDEV=y
 CONFIG_INPUT_KEYRESET=y
+# CONFIG_KEYBOARD_ATKBD is not set
 CONFIG_KEYBOARD_GPIO=y
-CONFIG_KEYBOARD_TEGRA=y
-CONFIG_INPUT_JOYSTICK=y
+# CONFIG_INPUT_MOUSE is not set
 CONFIG_INPUT_TOUCHSCREEN=y
-CONFIG_TOUCHSCREEN_ATMEL_MXT=y
-CONFIG_TOUCHSCREEN_PANJIT_I2C=y
-CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI=y
 CONFIG_TOUCHSCREEN_WM97XX=y
 # CONFIG_TOUCHSCREEN_WM9705 is not set
 # CONFIG_TOUCHSCREEN_WM9713 is not set
 CONFIG_INPUT_MISC=y
 CONFIG_INPUT_UINPUT=y
 CONFIG_INPUT_GPIO=y
-CONFIG_INPUT_ADXL34X=y
-CONFIG_INPUT_ALPS_GPIO_SCROLLWHEEL=y
+# CONFIG_SERIO is not set
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
+# CONFIG_SERIAL_8250_PCI is not set
+CONFIG_SERIAL_8250_NR_UARTS=9
+CONFIG_SERIAL_8250_RUNTIME_UARTS=9
 CONFIG_SERIAL_TEGRA=y
 # CONFIG_HW_RANDOM is not set
 CONFIG_I2C_CHARDEV=y
-CONFIG_I2C_MUX=y
-CONFIG_I2C_MUX_PCA954x=y
 CONFIG_I2C_TEGRA=y
 CONFIG_SPI=y
 CONFIG_SPI_TEGRA=y
@@ -291,27 +203,19 @@ CONFIG_SPI_SPIDEV=y
 CONFIG_DEBUG_GPIO=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_POWER_SUPPLY=y
-CONFIG_BATTERY_BQ20Z75=y
-CONFIG_CHARGER_GPIO=y
-CONFIG_SENSORS_ADT7461=y
-CONFIG_SENSORS_LM90=y
+CONFIG_BATTERY_WM97XX=y
 CONFIG_SENSORS_LM95245=y
+CONFIG_WATCHDOG=y
+CONFIG_TEGRA_WATCHDOG=y
 CONFIG_MFD_TPS6586X=y
-CONFIG_MFD_MAX8907C=y
 CONFIG_REGULATOR=y
 CONFIG_REGULATOR_FIXED_VOLTAGE=y
 CONFIG_REGULATOR_VIRTUAL_CONSUMER=y
-CONFIG_REGULATOR_MAX8907C=y
 CONFIG_REGULATOR_TPS6586X=y
 CONFIG_MEDIA_SUPPORT=y
 CONFIG_VIDEO_DEV=y
-CONFIG_VIDEO_HELPER_CHIPS_AUTO=y
-CONFIG_VIDEO_OV5650=m
-CONFIG_VIDEO_OV2710=m
-CONFIG_VIDEO_SOC380=m
-CONFIG_TORCH_SSL3250A=m
-CONFIG_VIDEO_SH532U=m
-CONFIG_VIDEO_AD5820=m
+# CONFIG_TEGRA_CAMERA is not set
+# CONFIG_TEGRA_DTV is not set
 CONFIG_USB_VIDEO_CLASS=y
 # CONFIG_RADIO_ADAPTERS is not set
 # CONFIG_VGA_ARB is not set
@@ -319,10 +223,8 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y
 CONFIG_FB=y
 CONFIG_TEGRA_GRHOST=y
 CONFIG_TEGRA_DC=y
-CONFIG_TEGRA_DSI=y
-CONFIG_TEGRA_NVHDCP=y
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
-CONFIG_LCD_CLASS_DEVICE=y
+# CONFIG_LCD_CLASS_DEVICE is not set
 CONFIG_BACKLIGHT_CLASS_DEVICE=y
 # CONFIG_BACKLIGHT_GENERIC is not set
 CONFIG_BACKLIGHT_PWM=y
@@ -331,12 +233,12 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 CONFIG_SOUND=y
 CONFIG_SND=y
+# CONFIG_SND_PCI is not set
 CONFIG_SND_SOC=y
 CONFIG_SND_SOC_TEGRA=y
-CONFIG_SND_SOC_TEGRA_WM8903=y
 CONFIG_SND_SOC_TEGRA_COLIBRI_T20=y
-CONFIG_SND_SOC_TEGRA_WM8753=y
-CONFIG_HID_SONY=y
+CONFIG_HIDRAW=y
+CONFIG_USB_HIDDEV=y
 CONFIG_USB=y
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 CONFIG_USB_DEVICEFS=y
@@ -350,28 +252,26 @@ CONFIG_USB_WDM=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_LIBUSUAL=y
 CONFIG_USB_SERIAL=y
+CONFIG_USB_SERIAL_GENERIC=y
 CONFIG_USB_SERIAL_PL2303=y
-CONFIG_USB_SERIAL_OPTION=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_VBUS_DRAW=500
 CONFIG_USB_FSL_USB2=y
+#CONFIG_USB_ETH=y
 CONFIG_USB_MASS_STORAGE=m
 CONFIG_USB_COLIBRI_OTG=y
 CONFIG_MMC=y
 CONFIG_MMC_UNSAFE_RESUME=y
-CONFIG_MMC_TEST=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_SDHCI_TEGRA=y
 CONFIG_SWITCH=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_DS1307=y
-CONFIG_RTC_DRV_MAX8907C=y
 CONFIG_RTC_DRV_TPS6586X=y
 CONFIG_RTC_DRV_TEGRA=y
 CONFIG_STAGING=y
 CONFIG_IIO=y
-CONFIG_SENSORS_ISL29018=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_POSIX_ACL=y
@@ -390,20 +290,20 @@ CONFIG_CUSE=y
 CONFIG_ISO9660_FS=m
 CONFIG_JOLIET=y
 CONFIG_ZISOFS=y
-CONFIG_MSDOS_FS=m
 CONFIG_VFAT_FS=y
 CONFIG_NTFS_FS=m
 CONFIG_NTFS_RW=y
 CONFIG_TMPFS=y
 CONFIG_YAFFS_FS=y
 CONFIG_YAFFS_DISABLE_TAGS_ECC=y
+CONFIG_UBIFS_FS=y
 CONFIG_NFS_FS=y
 CONFIG_NFS_V3=y
 CONFIG_NFS_V3_ACL=y
 CONFIG_NFS_V4=y
 CONFIG_NFS_V4_1=y
 CONFIG_ROOT_NFS=y
-CONFIG_CIFS=m
+CONFIG_CIFS=y
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_EFI_PARTITION=y
 CONFIG_NLS_CODEPAGE_437=y
@@ -412,17 +312,12 @@ CONFIG_NLS_ISO8859_1=y
 CONFIG_NLS_UTF8=m
 CONFIG_PRINTK_TIME=y
 CONFIG_MAGIC_SYSRQ=y
-CONFIG_LOCKUP_DETECTOR=y
 CONFIG_SCHEDSTATS=y
 CONFIG_TIMER_STATS=y
-CONFIG_DEBUG_SLAB=y
 # CONFIG_DEBUG_PREEMPT is not set
-CONFIG_DEBUG_MUTEXES=y
 CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_VM=y
-CONFIG_DEBUG_SG=y
 CONFIG_FUNCTION_TRACER=y
-CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_SHA256=y
 CONFIG_CRYPTO_TWOFISH=y
 # CONFIG_CRYPTO_ANSI_CPRNG is not set