Author: adrian
Date: Mon Mar 12 01:15:58 2012
New Revision: 232845
URL: http://svn.freebsd.org/changeset/base/232845
Log:
Begin modifying the PB92 config file to actually generate a flashable,
bootable image.
The kernel has to fit inside an 896KiB area in a 4MB SPI flash.
So a bunch of stuff can't be included (and more is to come), including
(unfortunately) IPv6.
TODO:
* GPIO modules need to be created
* Shrink the image a bit more by removing some of the CAM layer debugging
strings.
Modified:
head/sys/mips/conf/PB92
Modified: head/sys/mips/conf/PB92
==============================================================================
--- head/sys/mips/conf/PB92 Mon Mar 12 01:06:29 2012 (r232844)
+++ head/sys/mips/conf/PB92 Mon Mar 12 01:15:58 2012 (r232845)
@@ -13,6 +13,17 @@ options HZ=1000
# The PB92 has 32mb of RAM; hard-code that
options AR71XX_REALMEM=32*1024*1024
+# It's UBOOT, not Redboot - without this, things will hang at startup
+options AR71XX_ENV_UBOOT
+
+# We have to build most things as modules rather than in the kernel.
+# The PB92 has 4MB of SPI flash and the default kernel "partition"
+# is only 892KiB. In order to try and squeeze into that (so people
+# who already are using it without modifying the default flash layout)
+# we need to cut down on a lot of things.
+
+makeoptions MODULES_OVERRIDE="ath ath_pci ath_ahb bridgestp if_bridge
if_gif if_gre random wlan wlan_acl wlan_amrr wlan_ccmp wlan_rssadapt wlan_tkip
wlan_wep wlan_xauth usb ar71xx"
+
hints "PB92.hints"
include "../atheros/std.ar71xx"
@@ -24,7 +35,8 @@ options KDB
options SCHED_4BSD #4BSD scheduler
options INET #InterNETworking
-options INET6
+# Can't do IPv6 - it just doesn't fit.
+# options INET6
# options NFSCL #Network Filesystem Client
options PSEUDOFS #Pseudo-filesystem framework
options _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time
extensions
@@ -41,11 +53,10 @@ options FFS
#options UFS_ACL #Support for access control lists
#options UFS_DIRHASH #Improve performance on big
directories
-options MD_ROOT
-options MD_ROOT_SIZE=5120
-device geom_uzip
-options GEOM_UZIP
-options ROOTDEVNAME=\"ufs:/dev/md0.uzip\"
+# Support uncompress lzma rootfs
+device geom_uncompress
+options GEOM_UNCOMPRESS
+options ROOTDEVNAME=\"ufs:/dev/map/rootfs.uncompress\"
# PCI bus
device pci
@@ -58,49 +69,50 @@ device nvram2env
options IEEE80211_DEBUG
options IEEE80211_SUPPORT_MESH
options IEEE80211_SUPPORT_TDMA
-device wlan # 802.11 support
-device wlan_wep # 802.11 WEP support
-device wlan_ccmp # 802.11 CCMP support
-device wlan_tkip # 802.11 TKIP support
-device wlan_xauth # 802.11 hostap support
+options IEEE80211_ALQ
+#device wlan # 802.11 support
+#device wlan_wep # 802.11 WEP support
+#device wlan_ccmp # 802.11 CCMP support
+#device wlan_tkip # 802.11 TKIP support
+#device wlan_xauth # 802.11 hostap support
-device ath # Atheros pci/cardbus NIC's
-device ath_pci # PCI/PCIe bus glue
+#device ath # Atheros pci/cardbus NIC's
+#device ath_pci # PCI/PCIe bus glue
options ATH_DEBUG
options ATH_ENABLE_11N
options ATH_DIAGAPI
-device ath_hal
+# device ath_hal
options AH_SUPPORT_AR5416
options AH_DEBUG
options AH_DEBUG_ALQ
-device ath_rate_sample
+# device ath_rate_sample
device mii
device arge
# USB devices - PB92 has EHCI only
-device usb
+#device usb
options USB_EHCI_BIG_ENDIAN_DESC # handle big-endian
byte order
options USB_DEBUG
options USB_HOST_ALIGN=32
-device ehci
+#device ehci
# Mass storage
-device scbus
-device umass
-device da
+#device scbus
+#device umass
+#device da
# Read MSDOS formatted disks
options GEOM_PART_BSD
options GEOM_PART_MBR
-options MSDOSFS
+# options MSDOSFS
# GPIO Bus
-device gpio
-device gpioled
+#device gpio
+#device gpioled
# SPI and flash
device spibus
@@ -118,7 +130,7 @@ device uart
# Network twiddling
device loop
device ether
-device md
-device bpf
-device random
-device if_bridge
+#device md
+#device bpf
+#device random
+#device if_bridge
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