slugos: move to ixp4xx-kernel, change nslu2 to more generic ixp4xx in conf

 - rather than build nslu2-kernel or nas100d-kernel slugos-image now
   builds ixp4xx-kernel, the generic kernel.  ixp4xx is now used as the
   normal MACHINE override, even though MACHINE itself is still set to
   nslu2 or nas100d (or ixp4xx).

4 files changed, 42 insertions, 19 deletions

diff --git a/conf/machine/include/ixp4xx.conf b/conf/machine/include/ixp4xx.conf
index 3c5077056e..19a2ee0141 100644
--- a/conf/machine/include/ixp4xx.conf
+++ b/conf/machine/include/ixp4xx.conf
@@ -46,7 +46,7 @@ DISTRO_BASE = ""
 
 IXP4XX_SUFFIX = "${MACHINE_ARCH}"
 # <string>
-#    Kernel suffix - 'ixp4xxb' or 'ixp4xxl' for a truely generic image, controls
+#    Kernel suffix - 'ixp4xxbe' or 'ixp4xxle' for a truely generic image, controls
 #    the suffix on the name of the generated zImage, override in the DISTRO
 #    configuration if patches or defconfig are changed for the DISTRO.
 
@@ -97,19 +97,19 @@ FULL_OPTIMIZATION = "-Os -fomit-frame-pointer -frename-registers \
 #    setting because of the large number of ways it is used within OpenEmbedded.
 TARGET_ARCH = "${@['armeb', 'arm'][bb.data.getVar('ARCH_BYTE_SEX', d, 1) == 'le']}"
 
-# PACKAGE_ARCH
+# TARGET_PACKAGE_ARCH [not used]
 #    The correct setting for the generated packages.  This corresponds to the
 #    -march flag passed to the compiler because that limits the architectures
 #    on which the generated code will run.
 BYTE_SEX_CHAR = "${@['b', 'l'][bb.data.getVar('ARCH_BYTE_SEX', d, 1) == 'le']}"
-PACKAGE_ARCH_BASE = "${@['armv5te', 'thumbv5t'][bb.data.getVar('ARM_INSTRUCTION_SET', d, 1) == 'thumb']}"
-PACKAGE_ARCH = "${PACKAGE_ARCH_BASE}${BYTE_SEX_CHAR}"
+TARGET_PACKAGE_ARCH_BASE = "${@['armv5te', 'thumbv5t'][bb.data.getVar('ARM_INSTRUCTION_SET', d, 1) == 'thumb']}"
+TARGET_PACKAGE_ARCH = "${TARGET_PACKAGE_ARCH_BASE}${BYTE_SEX_CHAR}"
 
 # MACHINE_ARCH
 #    The correct setting for packages which are specific to the machine, this
 #    defaults to ${MACHINE} in bitbake.conf, however it is set to ixp4xx here
 #    because everything built here is no more specific than that.
-MACHINE_ARCH = "ixp4xx${BYTE_SEX_CHAR}"
+MACHINE_ARCH = "ixp4xx${ARCH_BYTE_SEX}"
 
 # IPKG_ARCHS
 #    The full list of package architectures which should run on the system.
@@ -117,7 +117,10 @@ MACHINE_ARCH = "ixp4xx${BYTE_SEX_CHAR}"
 #    by the distro.  The arm list is derived from the architecture settings
 #    known to gcc, the thumb list is then derived from that (only the 't'
 #    architectures of course).
-ARM_ARCHITECTURES = "${TARGET_ARCH} armv2${BYTE_SEX_CHAR} armv2a${BYTE_SEX_CHAR} armv3${BYTE_SEX_CHAR} armv3m${BYTE_SEX_CHAR} armv4${BYTE_SEX_CHAR} armv4t${BYTE_SEX_CHAR} armv5${BYTE_SEX_CHAR} armv5t${BYTE_SEX_CHAR} armv5e${BYTE_SEX_CHAR} armv5te${BYTE_SEX_CHAR} xscale${BYTE_SEX_CHAR}"
+#[not used]: TARGET_ARCH is handled below because it is also currently
+# used for thumb packages.
+#ARM_ARCHITECTURES = "${TARGET_ARCH} armv2${BYTE_SEX_CHAR} armv2a${BYTE_SEX_CHAR} armv3${BYTE_SEX_CHAR} armv3m${BYTE_SEX_CHAR} armv4${BYTE_SEX_CHAR} armv4t${BYTE_SEX_CHAR} armv5${BYTE_SEX_CHAR} armv5t${BYTE_SEX_CHAR} armv5e${BYTE_SEX_CHAR} armv5te${BYTE_SEX_CHAR} xscale${BYTE_SEX_CHAR}"
+ARM_ARCHITECTURES = "armv2${BYTE_SEX_CHAR} armv2a${BYTE_SEX_CHAR} armv3${BYTE_SEX_CHAR} armv3m${BYTE_SEX_CHAR} armv4${BYTE_SEX_CHAR} armv4t${BYTE_SEX_CHAR} armv5${BYTE_SEX_CHAR} armv5t${BYTE_SEX_CHAR} armv5e${BYTE_SEX_CHAR} armv5te${BYTE_SEX_CHAR} xscale${BYTE_SEX_CHAR}"
 THUMB_ARCHITECTURES = "thumbe${BYTE_SEX_CHAR} thumbv4t${BYTE_SEX_CHAR} thumbv5t${BYTE_SEX_CHAR}"
 
 #    NOTE: this list contains just the things which rootfs_ipk.bbclass does
@@ -128,14 +131,22 @@ THUMB_ARCHITECTURES = "thumbe${BYTE_SEX_CHAR} thumbv4t${BYTE_SEX_CHAR} thumbv5t$
 #    This is a priority ordered list - most desireable architecture at the end,
 #    so put <ARM_INSTRUCTION_SET>_ARCHITECTURES at the end and, if
 #    THUMB_INTERWORK precede this with the other architectures.
-IPKG_ARCHS = "${@(lambda arch_thumb, arch_arm, is_arm, interwork: \
+IPKG_ARCHS = "ixp4xx ${MACHINE} \
+		${@(lambda arch_thumb, arch_arm, is_arm, interwork: \
 		(interwork and (is_arm and arch_thumb or arch_arm) + ' ' or '') \
-		+ (is_arm and arch_arm or arch_thumb)) \
+		+ '${TARGET_ARCH} ' + (is_arm and arch_arm or arch_thumb)) \
 	       (bb.data.getVar('THUMB_ARCHITECTURES', d, 1), \
 		bb.data.getVar('ARM_ARCHITECTURES', d, 1), \
 		bb.data.getVar('ARM_INSTRUCTION_SET', d, 1) != 'thumb', \
 		bb.data.getVar('THUMB_INTERWORK', d, 1) == 'yes')} \
-		${MACHINE_ARCH} ${MACHINE}${BYTE_SEX_CHAR}"
+		${MACHINE_ARCH} ${MACHINE}${ARCH_BYTE_SEX}"
+
+# IPKG_ARCH_LIST [not used]
+#    This is used to override the ipkgarchs settings in rootfs_ipk.bbclass, allowing
+#    the removal of the raw "${MACHINE}" from the end of the list.  ${MACHINE} and
+#    ixp4xx are included at the start (lower priority) as the non-byte-sex specific
+#    versions.
+IPKG_ARCH_LIST = "all any noarch ixp4xx ${MACHINE} ${IPKG_ARCHS}"
 
 #-------------------------------------------------------------------------------
 # Package versions
@@ -152,3 +163,16 @@ INHERIT += "nslu2-mirrors"
 
 PREFERRED_VERSION_ipkg ?= "0.99.155"
 PREFERRED_VERSION_ipkg-native ?= "0.99.154"
+
+#-------------------------------------------------------------------------------
+# Board defaults
+#-------------------------------------------------------------------------------
+# These values are board specific but they seem to be common to a large number
+# of boards so are reasonable defaults.
+SERIAL_CONSOLE = "115200 ttyS0"
+KERNEL_CONSOLE = "ttyS0,115200n8"
+USE_VT = "0"
+
+# Always add the LEFIXUP - if desired this can be removed for a specific board
+# if that board has an LE boot loader and therefore does not require it.
+IXP4XX_LEFIXUP = "1"
diff --git a/conf/machine/ixp4xx.conf b/conf/machine/ixp4xx.conf
new file mode 100644
index 0000000000..c088485fcc
--- /dev/null
+++ b/conf/machine/ixp4xx.conf
@@ -0,0 +1,5 @@
+#@TYPE: Machine
+#@NAME: Generic IXP4XX kernel
+#@DESCRIPTION: Machine configuration for a generic ixp4xx board
+
+include conf/machine/include/ixp4xx.conf
diff --git a/conf/machine/nas100d.conf b/conf/machine/nas100d.conf
index f99b601628..a628841878 100644
--- a/conf/machine/nas100d.conf
+++ b/conf/machine/nas100d.conf
@@ -5,10 +5,7 @@
 include conf/machine/include/ixp4xx.conf
 
 # The correct settings for the NAS100D board:
-SERIAL_CONSOLE = "115200 ttyS0"
-KERNEL_CONSOLE = "ttyS0,115200n8"
-USE_VT = "0"
 CMDLINE_ROOT = "root=/dev/mtdblock2 rw rootfstype=jffs2 mem=64M@0x00000000 init=/linuxrc"
-IXP4XX_SUFFIX = "${MACHINE}${BYTE_SEX_CHAR}"
+# This following means the kernel will only run on a NAS100D board:
+IXP4XX_SUFFIX = "${MACHINE}${ARCH_BYTE_SEX}"
 IXP4XX_MACHID = "865"
-IXP4XX_LEFIXUP = "1"
diff --git a/conf/machine/nslu2.conf b/conf/machine/nslu2.conf
index a20e8b73a9..96b9e37ce0 100644
--- a/conf/machine/nslu2.conf
+++ b/conf/machine/nslu2.conf
@@ -5,10 +5,7 @@
 include conf/machine/include/ixp4xx.conf
 
 # The correct settings for the NSLU2 board:
-SERIAL_CONSOLE = "115200 ttyS0"
-KERNEL_CONSOLE = "ttyS0,115200n8"
-USE_VT = "0"
 CMDLINE_ROOT = "root=/dev/mtdblock4 rw rootfstype=jffs2 mem=32M@0x00000000 init=/linuxrc"
-IXP4XX_SUFFIX = "${MACHINE}${BYTE_SEX_CHAR}"
+IXP4XX_SUFFIX = "${MACHINE}${ARCH_BYTE_SEX}"
+# This following means the kernel will only run on a NSLU2:
 IXP4XX_MACHID = "597"
-IXP4XX_LEFIXUP = "1"