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yaml --- r: 303120 b: refs/heads/master c: 6ed272f h: refs/heads/master v: v3
git-mirror · May 14, 2012 · a64aa0d · a64aa0d
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diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 985f03c2e95625ead38fbd5846b1360e20225117
+refs/heads/master: 6ed272f245893f2278a9f5a59bacd857664c7d1f
diff --git a/trunk/Documentation/arm/00-INDEX b/trunk/Documentation/arm/00-INDEX
@@ -4,6 +4,8 @@ Booting
 	- requirements for booting
 Interrupts
 	- ARM Interrupt subsystem documentation
+IXP2000
+	- Release Notes for Linux on Intel's IXP2000 Network Processor
 msm
 	- MSM specific documentation
 Netwinder

diff --git a/trunk/Documentation/arm/IXP2000 b/trunk/Documentation/arm/IXP2000
@@ -0,0 +1,69 @@
+
+-------------------------------------------------------------------------
+Release Notes for Linux on Intel's IXP2000 Network Processor
+
+Maintained by Deepak Saxena <dsaxena@plexity.net>
+-------------------------------------------------------------------------
+
+1. Overview
+
+Intel's IXP2000 family of NPUs (IXP2400, IXP2800, IXP2850) is designed
+for high-performance network applications such high-availability
+telecom systems. In addition to an XScale core, it contains up to 8
+"MicroEngines" that run special code, several high-end networking 
+interfaces (UTOPIA, SPI, etc), a PCI host bridge, one serial port,
+flash interface, and some other odds and ends. For more information, see:
+
+http://developer.intel.com
+
+2. Linux Support
+
+Linux currently supports the following features on the IXP2000 NPUs:
+
+- On-chip serial
+- PCI
+- Flash (MTD/JFFS2)
+- I2C through GPIO
+- Timers (watchdog, OS)
+
+That is about all we can support under Linux ATM b/c the core networking
+components of the chip are accessed via Intel's closed source SDK. 
+Please contact Intel directly on issues with using those. There is
+also a mailing list run by some folks at Princeton University that might
+be of help:  https://lists.cs.princeton.edu/mailman/listinfo/ixp2xxx
+
+WHATEVER YOU DO, DO NOT POST EMAIL TO THE LINUX-ARM OR LINUX-ARM-KERNEL
+MAILING LISTS REGARDING THE INTEL SDK.
+
+3. Supported Platforms
+
+- Intel IXDP2400 Reference Platform
+- Intel IXDP2800 Reference Platform
+- Intel IXDP2401 Reference Platform
+- Intel IXDP2801 Reference Platform
+- RadiSys ENP-2611
+
+4. Usage Notes
+
+- The IXP2000 platforms usually have rather complex PCI bus topologies
+  with large memory space requirements. In addition, b/c of the way the
+  Intel SDK is designed, devices are enumerated in a very specific
+  way. B/c of this this, we use "pci=firmware" option in the kernel
+  command line so that we do not re-enumerate the bus.
+
+- IXDP2x01 systems have variable clock tick rates that we cannot determine 
+  via HW registers. The "ixdp2x01_clk=XXX" cmd line options allow you
+  to pass the clock rate to the board port.
+
+5. Thanks
+
+The IXP2000 work has been funded by Intel Corp. and MontaVista Software, Inc.
+
+The following people have contributed patches/comments/etc:
+
+Naeem F. Afzal
+Lennert Buytenhek
+Jeffrey Daly
+
+-------------------------------------------------------------------------
+Last Update: 8/09/2004
diff --git a/trunk/MAINTAINERS b/trunk/MAINTAINERS
@@ -640,6 +640,13 @@ S:	Maintained
 F:	drivers/amba/
 F:	include/linux/amba/bus.h
 
+ARM/ADI ROADRUNNER MACHINE SUPPORT
+M:	Lennert Buytenhek <kernel@wantstofly.org>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm/mach-ixp23xx/
+F:	arch/arm/mach-ixp23xx/include/mach/
+
 ARM/ADS SPHERE MACHINE SUPPORT
 M:	Lennert Buytenhek <kernel@wantstofly.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -852,11 +859,21 @@ M:	Dan Williams <dan.j.williams@intel.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 
+ARM/INTEL IXP2000 ARM ARCHITECTURE
+M:	Lennert Buytenhek <kernel@wantstofly.org>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+
 ARM/INTEL IXDP2850 MACHINE SUPPORT
 M:	Lennert Buytenhek <kernel@wantstofly.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 
+ARM/INTEL IXP23XX ARM ARCHITECTURE
+M:	Lennert Buytenhek <kernel@wantstofly.org>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+
 ARM/INTEL IXP4XX ARM ARCHITECTURE
 M:	Imre Kaloz <kaloz@openwrt.org>
 M:	Krzysztof Halasa <khc@pm.waw.pl>

diff --git a/trunk/arch/arm/Kconfig b/trunk/arch/arm/Kconfig
@@ -340,8 +340,8 @@ config ARCH_AT91
 	select IRQ_DOMAIN
 	select NEED_MACH_IO_H if PCCARD
 	help
-	  This enables support for systems based on Atmel
-	  AT91RM9200 and AT91SAM9* processors.
+	  This enables support for systems based on the Atmel AT91RM9200,
+	  AT91SAM9 processors.
 
 config ARCH_BCMRING
 	bool "Broadcom BCMRING"
@@ -528,6 +528,28 @@ config ARCH_IOP33X
 	help
 	  Support for Intel's IOP33X (XScale) family of processors.
 
+config ARCH_IXP23XX
+ 	bool "IXP23XX-based"
+	depends on MMU
+	select CPU_XSC3
+ 	select PCI
+	select ARCH_USES_GETTIMEOFFSET
+	select NEED_MACH_IO_H
+	select NEED_MACH_MEMORY_H
+	help
+	  Support for Intel's IXP23xx (XScale) family of processors.
+
+config ARCH_IXP2000
+	bool "IXP2400/2800-based"
+	depends on MMU
+	select CPU_XSCALE
+	select PCI
+	select ARCH_USES_GETTIMEOFFSET
+	select NEED_MACH_IO_H
+	select NEED_MACH_MEMORY_H
+	help
+	  Support for Intel's IXP2400/2800 (XScale) family of processors.
+
 config ARCH_IXP4XX
 	bool "IXP4xx-based"
 	depends on MMU
@@ -1024,6 +1046,10 @@ source "arch/arm/mach-iop13xx/Kconfig"
 
 source "arch/arm/mach-ixp4xx/Kconfig"
 
+source "arch/arm/mach-ixp2000/Kconfig"
+
+source "arch/arm/mach-ixp23xx/Kconfig"
+
 source "arch/arm/mach-kirkwood/Kconfig"
 
 source "arch/arm/mach-ks8695/Kconfig"

diff --git a/trunk/arch/arm/Makefile b/trunk/arch/arm/Makefile
@@ -149,6 +149,8 @@ machine-$(CONFIG_ARCH_INTEGRATOR)	:= integrator
 machine-$(CONFIG_ARCH_IOP13XX)		:= iop13xx
 machine-$(CONFIG_ARCH_IOP32X)		:= iop32x
 machine-$(CONFIG_ARCH_IOP33X)		:= iop33x
+machine-$(CONFIG_ARCH_IXP2000)		:= ixp2000
+machine-$(CONFIG_ARCH_IXP23XX)		:= ixp23xx
 machine-$(CONFIG_ARCH_IXP4XX)		:= ixp4xx
 machine-$(CONFIG_ARCH_KIRKWOOD)		:= kirkwood
 machine-$(CONFIG_ARCH_KS8695)		:= ks8695

diff --git a/trunk/arch/arm/boot/compressed/head-xscale.S b/trunk/arch/arm/boot/compressed/head-xscale.S
@@ -32,3 +32,10 @@ __XScale_start:
 		bic	r0, r0, #0x1000		@ clear Icache
 		mcr	p15, 0, r0, c1, c0, 0
 
+#ifdef CONFIG_ARCH_IXP2000
+		mov	r1, #-1
+		mov	r0, #0xd6000000
+		str	r1, [r0, #0x14]
+		str	r1, [r0, #0x18]
+#endif
+
diff --git a/trunk/arch/arm/common/Makefile b/trunk/arch/arm/common/Makefile
@@ -11,5 +11,7 @@ obj-$(CONFIG_DMABOUNCE)		+= dmabounce.o
 obj-$(CONFIG_SHARP_LOCOMO)	+= locomo.o
 obj-$(CONFIG_SHARP_PARAM)	+= sharpsl_param.o
 obj-$(CONFIG_SHARP_SCOOP)	+= scoop.o
+obj-$(CONFIG_ARCH_IXP2000)	+= uengine.o
+obj-$(CONFIG_ARCH_IXP23XX)	+= uengine.o
 obj-$(CONFIG_PCI_HOST_ITE8152)  += it8152.o
 obj-$(CONFIG_ARM_TIMER_SP804)	+= timer-sp.o