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Adding Raspberry Pi kernel and headers

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This commit is contained in:
Dave Higham 2011-11-14 21:20:29 +00:00
parent df7d35df38
commit 563cd42729
9 changed files with 494 additions and 0 deletions
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243
core/kernel26-raspberrypi/PKGBUILD Normal file
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# Maintainer: Mike Staszel <mikestaszel@plugapps.com>
# Rasberry Pi kernel and headers
noautobuild=1
plugrel=2
#ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-2.6.35.7.tar.bz2
pkgbase="kernel26-raspberrypi"
pkgname=('kernel26-raspberrypi' 'kernel26-headers-raspberrypi')
#_kernelname=${pkgname#kernel26}
_kernelname=""
_basekernel=2.6.35
pkgver=${_basekernel}.7
_pkgrel=1
pkgrel=${_pkgrel}
#pkgrel=${_pkgrel}.${plugrel}
makedepends=('xmlto' 'docbook-xsl' 'make' 'python2')
_patchname="patch-${pkgver}-${_pkgrel}-ARCH"
arch=(arm)
KARCH=arm
LDFLAGS=""
license=('GPL2')
url="http://www.kernel.org"
source=('armdma.patch'
'args-uncompressed.txt'
'boot-uncompressed.txt'
'imagetool-uncompressed.py'
'ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-2.6.35.7.tar.bz2'
'rp-patches.tar.gz'
'sys_accept4.patch')
md5sums=('6e7667c6c6348bfeca22eaaa05462d62'
'9335d1263fd426215db69841a380ea26'
'a00e424e2fbb8c5a5f77ba2c4871bed4'
'2f82dbe5752af65ff409d737caf11954'
'f741879bcd3a5366a1bbe0ad5cdb7935'
'968a3a9468b90a8a50dae8cafb276760'
'fdbbc3c4f34d5959504f027bdc1e7a73')
options=('!distcc' '!ccache')
build() {
cd "${srcdir}/linux-${pkgver}"
# Copy in the ethernet firmware, needed for make!
cp ${srcdir}/args-uncompressed.txt arch/arm/boot/
cp ${srcdir}/boot-uncompressed.txt arch/arm/boot/
cp ${srcdir}/imagetool-uncompressed.py arch/arm/boot/
# Prepare sources
#make prepare
make clean # sometimes git isn't clean
make mrproper # same as above
# Configure the kernel. Replace the line below with one of your choice.
#make menuconfig # CLI menu for configuration
#make nconfig # new CLI menu for configuration
#make oldconfig # using old config from previous kernel version
# ALARM: add dma_coherent_write_sync calls to USB EHCI driver
patch -Np1 -i "${srcdir}/rp-patches/rpdh1.patch"
patch -Np1 -i "${srcdir}/rp-patches/smsc95xx.patch"
patch -Np1 -i "${srcdir}/armdma.patch"
patch -Np1 -i "${srcdir}/sys_accept4.patch"
# Make the config compatible with Arch Linux's naming scheme
# sed 's|CONFIG_LOCALVERSION="-trimslice-1.02"|CONFIG_LOCALVERSION="-ARCH"|g' -i .config
# Copy back our configuration (use with new kernel version)
#cp ./.config ../${_basekernel}.config
# Halt the build for configuration only
#return 1
# Build!
make -j2 #${MAKEFLAGS}
}
package_kernel26-raspberrypi() {
pkgdesc="The Linux Kernel and modules"
groups=('base')
depends=('coreutils' 'module-init-tools>=3.12-2')
replaces=('kernel24' 'kernel24-scsi' 'kernel26-scsi'
'alsa-driver' 'ieee80211' 'hostap-driver26'
'pwc' 'nforce' 'squashfs' 'unionfs' 'ivtv'
'zd1211' 'kvm-modules' 'iwlwifi' 'rt2x00-cvs'
'gspcav1' 'atl2' 'wlan-ng26' 'rt2500' 'nouveau-drm')
provides=('kernel26=2.6.38')
conflicts=('kernel26' 'kernel26-tegra' 'kernel26-omap')
install=kernel26.install
optdepends=('crda: to set the correct wireless channels of your country')
KARCH=arm
cd "${srcdir}/linux-${pkgver}"
# get kernel version
_kernver="$(make kernelrelease)"
mkdir -p ${pkgdir}/{lib/modules,lib/firmware,boot}
make INSTALL_MOD_PATH=${pkgdir} modules_install
# cp System.map ${pkgdir}/boot/System.map26${_kernelname}
cd arch/$KARCH/boot/
/usr/bin/python2 imagetool-uncompressed.py
cd "${srcdir}/linux-${pkgver}"
cp arch/$KARCH/boot/kernel.img ${pkgdir}/boot/kernel.img
# set correct depmod command for install
sed \
-e "s/KERNEL_NAME=.*/KERNEL_NAME=${_kernelname}/g" \
-e "s/KERNEL_VERSION=.*/KERNEL_VERSION=${_kernver}/g" \
-i $startdir/kernel26.install
# remove build and source links
rm -f ${pkgdir}/lib/modules/${_kernver}/{source,build}
# remove the firmware
rm -rf ${pkgdir}/lib/firmware
# gzip -9 all modules to save 100MB of space
find "$pkgdir" -name '*.ko' -exec gzip -9 {} \;
}
package_kernel26-headers-raspberrypi() {
pkgdesc="Header files and scripts for building modules for kernel26"
provides=('kernel26-headers=2.35.7')
conflicts=('kernel26-headers' 'kernel26-headers-tegra' 'kernel26-headers-omap')
KARCH=arm
mkdir -p ${pkgdir}/lib/modules/${_kernver}
cd ${pkgdir}/lib/modules/${_kernver}
ln -sf ../../../usr/src/linux-${_kernver} build
cd "${srcdir}/linux-${pkgver}"
install -D -m644 Makefile \
${pkgdir}/usr/src/linux-${_kernver}/Makefile
install -D -m644 kernel/Makefile \
${pkgdir}/usr/src/linux-${_kernver}/kernel/Makefile
install -D -m644 .config \
${pkgdir}/usr/src/linux-${_kernver}/.config
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/include
for i in acpi asm-generic config generated linux math-emu media net pcmcia scsi sound trace video xen; do
cp -a include/$i ${pkgdir}/usr/src/linux-${_kernver}/include/
done
# copy arch includes for external modules
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH
cp -a arch/$KARCH/include ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/mach-bcm2708
cp -a arch/$KARCH/mach-bcm2708/include ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/mach-bcm2708/
# copy files necessary for later builds, like nvidia and vmware
cp Module.symvers ${pkgdir}/usr/src/linux-${_kernver}
cp -a scripts ${pkgdir}/usr/src/linux-${_kernver}
# fix permissions on scripts dir
chmod og-w -R ${pkgdir}/usr/src/linux-${_kernver}/scripts
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/.tmp_versions
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/kernel
cp arch/$KARCH/Makefile ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/
if [ "$CARCH" = "i686" ]; then
cp arch/$KARCH/Makefile_32.cpu ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/
fi
cp arch/$KARCH/kernel/asm-offsets.s ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/kernel/
# add headers for lirc package
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video
cp drivers/media/video/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/
for i in bt8xx cpia2 cx25840 cx88 em28xx et61x251 pwc saa7134 sn9c102; do
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/$i
cp -a drivers/media/video/$i/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/$i
done
# mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/staging/usbvideo/
# cp -a drivers/staging/usbvideo/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/staging/usbvideo/
# add docbook makefile
install -D -m644 Documentation/DocBook/Makefile \
${pkgdir}/usr/src/linux-${_kernver}/Documentation/DocBook/Makefile
# add dm headers
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/md
cp drivers/md/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/md
# add inotify.h
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/include/linux
cp include/linux/inotify.h ${pkgdir}/usr/src/linux-${_kernver}/include/linux/
# add wireless headers
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/net/mac80211/
cp net/mac80211/*.h ${pkgdir}/usr/src/linux-${_kernver}/net/mac80211/
# add dvb headers for external modules
# in reference to:
# http://bugs.archlinux.org/task/9912
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-core
cp drivers/media/dvb/dvb-core/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-core/
# add dvb headers for external modules
# in reference to:
# http://bugs.archlinux.org/task/11194
#mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/include/config/dvb/
#cp include/config/dvb/*.h ${pkgdir}/usr/src/linux-${_kernver}/include/config/dvb/
# add dvb headers for http://mcentral.de/hg/~mrec/em28xx-new
# in reference to:
# http://bugs.archlinux.org/task/13146
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/
cp drivers/media/dvb/frontends/lgdt330x.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/
cp drivers/media/video/msp3400-driver.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/
# add dvb headers
# in reference to:
# http://bugs.archlinux.org/task/20402
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-usb
cp drivers/media/dvb/dvb-usb/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-usb/
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends
cp drivers/media/dvb/frontends/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/common/tuners
cp drivers/media/common/tuners/*.h ${pkgdir}/usr/src/linux-${_kernver}/drivers/media/common/tuners/
# add xfs and shmem for aufs building
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/fs/xfs
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/mm
cp fs/xfs/xfs_sb.h ${pkgdir}/usr/src/linux-${_kernver}/fs/xfs/xfs_sb.h
# add headers vor virtualbox
# in reference to:
# http://bugs.archlinux.org/task/14568
cp -a include/drm $pkgdir/usr/src/linux-${_kernver}/include/
# add headers for broadcom wl
# in reference to:
# http://bugs.archlinux.org/task/14568
cp -a include/trace $pkgdir/usr/src/linux-${_kernver}/include/
# add headers for crypto modules
# in reference to:
# http://bugs.archlinux.org/task/22081
cp -a include/crypto $pkgdir/usr/src/linux-${_kernver}/include/
# copy in Kconfig files
for i in `find . -name "Kconfig*"`; do
mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/`echo $i | sed 's|/Kconfig.*||'`
cp $i ${pkgdir}/usr/src/linux-${_kernver}/$i
done
chown -R root.root ${pkgdir}/usr/src/linux-${_kernver}
find ${pkgdir}/usr/src/linux-${_kernver} -type d -exec chmod 755 {} \;
# strip scripts directory
find ${pkgdir}/usr/src/linux-${_kernver}/scripts -type f -perm -u+w 2>/dev/null | while read binary ; do
case "$(file -bi "$binary")" in
*application/x-sharedlib*) # Libraries (.so)
/usr/bin/strip $STRIP_SHARED "$binary";;
*application/x-archive*) # Libraries (.a)
/usr/bin/strip $STRIP_STATIC "$binary";;
*application/x-executable*) # Binaries
/usr/bin/strip $STRIP_BINARIES "$binary";;
esac
done
# remove unneeded architectures
rm -rf ${pkgdir}/usr/src/linux-${_kernver}/arch/{alpha,avr32,blackfin,cris,frv,h8300,ia64,m32r,m68k,m68knommu,mips,microblaze,mn10300,parisc,powerpc,ppc,s390,sh,sh64,sparc,sparc64,um,v850,xtensa}
}

12
core/kernel26-raspberrypi/args-uncompressed.txt Normal file
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; kernel args (place at 0x00000100)
0x00000005
0x54410001
0x00000001
0x00001000
0x00000000
0x00000004
0x54410002
0x08000000
0x00000000
0x00000000
0x00000000

122
core/kernel26-raspberrypi/armdma.patch Normal file
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diff -urN linux-3.1-rc4-a/arch/arm/include/asm/dma-mapping.h linux-3.1-rc4-b/arch/arm/include/asm/dma-mapping.h
--- linux-3.1-rc4-a/arch/arm/include/asm/dma-mapping.h 2011-08-29 05:16:01.000000000 +0100
+++ linux-3.1-rc4-b/arch/arm/include/asm/dma-mapping.h 2011-09-02 12:09:00.000000000 +0100
@@ -205,6 +205,15 @@
int dma_mmap_writecombine(struct device *, struct vm_area_struct *,
void *, dma_addr_t, size_t);
+#ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE
+#define ARCH_HAS_DMA_COHERENT_WRITE_SYNC
+
+static inline void dma_coherent_write_sync(void)
+{
+ dsb();
+ outer_sync();
+}
+#endif
#ifdef CONFIG_DMABOUNCE
/*
diff -urN linux-3.1-rc4-a/Documentation/DMA-API-HOWTO.txt linux-3.1-rc4-b/Documentation/DMA-API-HOWTO.txt
--- linux-3.1-rc4-a/Documentation/DMA-API-HOWTO.txt 2011-08-29 05:16:01.000000000 +0100
+++ linux-3.1-rc4-b/Documentation/DMA-API-HOWTO.txt 2011-09-02 12:01:09.000000000 +0100
@@ -400,6 +400,22 @@
from a pool before you destroy the pool. This function may not
be called in interrupt context.
+Some architectures which supporting DMA coherent memory may still have write
+buffering between the CPU and DMA memory. This buffering may delay CPU writes
+from reaching coherent memory in a timely manner. These delays in turn can
+lead lead to dramatic performance issues in certain cases. An architecture
+may mitigate this problem to a large degree by having a write buffer flush
+implicit in the MMIO functions used to write to device registers. This works
+for the most common cases where a driver needs to write to a register to tell
+a device that something was written to the shared coherent memory. There are
+other cases where the device polls the dma-coherent memory for data written
+by the driver. In such cases, the driver needs to explicity force write buffer
+data to memory by calling:
+
+ dma_coherent_write_sync();
+
+
+
DMA Direction
The interfaces described in subsequent portions of this document
diff -urN linux-3.1-rc4-a/Documentation/DMA-API.txt linux-3.1-rc4-b/Documentation/DMA-API.txt
--- linux-3.1-rc4-a/Documentation/DMA-API.txt 2011-08-29 05:16:01.000000000 +0100
+++ linux-3.1-rc4-b/Documentation/DMA-API.txt 2011-09-02 12:03:06.000000000 +0100
@@ -418,6 +418,18 @@
....
+Part Ie - Write buffering to dma-coherent memory
+------------------------------------------------
+
+Some architectures supporting DMA coherent memory may have write
+buffering between the CPU and DMA memory. This buffering may delay
+CPU writes from reaching coherent memory in a timely manner.
+
+ void
+ dma_coherent_write_sync()
+
+Force any outstanding coherent writes to memory.
+
Part II - Advanced dma_ usage
-----------------------------
diff -urN linux-3.1-rc4-a/drivers/usb/host/ehci-q.c linux-3.1-rc4-b/drivers/usb/host/ehci-q.c
--- linux-3.1-rc4-a/drivers/usb/host/ehci-q.c 2011-08-29 05:16:01.000000000 +0100
+++ linux-3.1-rc4-b/drivers/usb/host/ehci-q.c 2011-09-02 12:17:20.000000000 +0100
@@ -114,6 +114,7 @@
/* HC must see latest qtd and qh data before we clear ACTIVE+HALT */
wmb ();
hw->hw_token &= cpu_to_hc32(ehci, QTD_TOGGLE | QTD_STS_PING);
+ dma_coherent_write_sync();
}
/* if it weren't for a common silicon quirk (writing the dummy into the qh
@@ -404,6 +405,7 @@
wmb();
hw->hw_token = cpu_to_hc32(ehci,
token);
+ dma_coherent_write_sync();
goto retry_xacterr;
}
stopped = 1;
@@ -753,8 +755,10 @@
}
/* by default, enable interrupt on urb completion */
- if (likely (!(urb->transfer_flags & URB_NO_INTERRUPT)))
+ if (likely(!(urb->transfer_flags & URB_NO_INTERRUPT))) {
qtd->hw_token |= cpu_to_hc32(ehci, QTD_IOC);
+ dma_coherent_write_sync();
+ }
return head;
cleanup:
@@ -1081,6 +1085,7 @@
/* let the hc process these next qtds */
wmb ();
dummy->hw_token = token;
+ dma_coherent_write_sync();
urb->hcpriv = qh_get (qh);
}
diff -urN linux-3.1-rc4-a/include/linux/dma-mapping.h linux-3.1-rc4-b/include/linux/dma-mapping.h
--- linux-3.1-rc4-a/include/linux/dma-mapping.h 2011-08-29 05:16:01.000000000 +0100
+++ linux-3.1-rc4-b/include/linux/dma-mapping.h 2011-09-02 12:06:06.000000000 +0100
@@ -154,6 +154,12 @@
}
#endif
+#ifndef ARCH_HAS_DMA_COHERENT_WRITE_SYNC
+static inline void dma_coherent_write_sync(void)
+{
+}
+#endif
+
/*
* Managed DMA API
*/

17
core/kernel26-raspberrypi/boot-uncompressed.txt Normal file
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@ -0,0 +1,17 @@
; bootloader (place at 0x00000000)
0xea000006
0xe1a00000
0xe1a00000
0xe1a00000
0xe1a00000
0xe1a00000
0xe1a00000
0xe1a00000
0xe3a00000
0xe3a01042
0xe3811c0c
0xe59f2000
0xe59ff000
0x00000100
0x00008000

41
core/kernel26-raspberrypi/imagetool-uncompressed.py Normal file
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@ -0,0 +1,41 @@
#!/usr/bin/python2
import os
import re
import sys
try:
linuxdir = sys.argv[1]
except:
linuxdir = "linux"
re_line = re.compile(r"0x(?P<value>[0-9a-f]{8})")
mem = [0 for i in range(32768)]
def load_to_mem(name, addr):
f = open(name)
for l in f.readlines():
m = re_line.match(l)
if m:
value = int(m.group("value"), 16)
for i in range(4):
mem[addr] = int(value >> i * 8 & 0xff)
addr += 1
f.close()
load_to_mem("boot-uncompressed.txt", 0x00000000)
load_to_mem("args-uncompressed.txt", 0x00000100)
f = open("first32k.bin", "wb")
for m in mem:
f.write(chr(m))
f.close()
os.system("cat first32k.bin Image > kernel.img")

20
core/kernel26-raspberrypi/kernel26.install Normal file
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KERNEL_NAME=
KERNEL_VERSION=2.6.35.7
post_install() {
# ARM doesn't use mkinitcpio or anything like that
# so we skip it here
echo -e "\033[1mNotice\033[0m"
echo ""
echo "This package is built for the Raspberry Pi."
echo ""
/sbin/depmod ${KERNEL_VERSION}
}
post_upgrade() {
post_install
}
op=$1
shift
$op $*

17
core/kernel26-raspberrypi/kernel26.preset Normal file
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# mkinitcpio preset file for kernel26
########################################
# DO NOT EDIT THIS LINE:
source /etc/mkinitcpio.d/kernel26.kver
########################################
ALL_config="/etc/mkinitcpio.conf"
PRESETS=('default' 'fallback')
#default_config="/etc/mkinitcpio.conf"
default_image="/boot/kernel26.img"
#default_options=""
#fallback_config="/etc/mkinitcpio.conf"
fallback_image="/boot/kernel26-fallback.img"
fallback_options="-S autodetect"

BIN
core/kernel26-raspberrypi/rp-patches.tar.gz Normal file
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22
core/kernel26-raspberrypi/sys_accept4.patch Normal file
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diff -rupN linux-2.6.35/arch/arm/include/asm/unistd.h linux-2.6.35.arm-sys_accept4/arch/arm/include/asm/unistd.h
--- linux-2.6.35/arch/arm/include/asm/unistd.h 2010-05-17 19:51:29.000000000 +0200
+++ linux-2.6.35.arm-sys_accept4/arch/arm/include/asm/unistd.h 2010-08-03 14:34:35.000000000 +0200
@@ -392,6 +392,7 @@
#define __NR_rt_tgsigqueueinfo (__NR_SYSCALL_BASE+363)
#define __NR_perf_event_open (__NR_SYSCALL_BASE+364)
#define __NR_recvmmsg (__NR_SYSCALL_BASE+365)
+#define __NR_accept4 (__NR_SYSCALL_BASE+366)
/*
* The following SWIs are ARM private.
diff -rupN linux-2.6.35/arch/arm/kernel/calls.S linux-2.6.35.arm-sys_accept4/arch/arm/kernel/calls.S
--- linux-2.6.35/arch/arm/kernel/calls.S 2010-05-17 19:51:29.000000000 +0200
+++ linux-2.6.35.arm-sys_accept4/arch/arm/kernel/calls.S 2010-08-03 14:34:35.000000000 +0200
@@ -375,6 +375,7 @@
CALL(sys_rt_tgsigqueueinfo)
CALL(sys_perf_event_open)
/* 365 */ CALL(sys_recvmmsg)
+ CALL(sys_accept4)
#ifndef syscalls_counted
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
#define syscalls_counted