Difference between revisions of "Processors"
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Here is a list of different processor families, with miscellaneous notes for development information: | Here is a list of different processor families, with miscellaneous notes for development information: | ||
| − | See also | + | See also [[Hardware Hacking]] for a list of systems that include these processors. |
| + | |||
== ARM == | == ARM == | ||
See [http://www.arm.com ARM website] and the [http://en.wikipedia.org/wiki/ARM_architecture Wikipedia ARM article] for information about the ARM architecture and processor family. | See [http://www.arm.com ARM website] and the [http://en.wikipedia.org/wiki/ARM_architecture Wikipedia ARM article] for information about the ARM architecture and processor family. | ||
| + | |||
| + | From the Linux perspective, there are 2 very different kinds of ARM chips: | ||
| + | * ARM devices that include a MMU, and can run standard Linux | ||
| + | * ARM devices without a MMU, which cannot run standard Linux. However, they can run uClinux. The Linux/Microcontroller project is a port of Linux to systems without a Memory Management Unit (MMU), such as the ARM7TDMI and the Microblaze. ( http://uclinux.org/ ). Is it true that the the Linux [[security]] permissions system relies on the MMU? | ||
| + | |||
| + | ''(FIXME: indicate whether or not each chip has a MMU)'' | ||
| + | |||
Some major ARM platforms/SOCs are: | Some major ARM platforms/SOCs are: | ||
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* [http://www.arm.com/products/DevTools/Hardware_Platforms.html ARM RealView] platforms - by ARM Ltd. | * [http://www.arm.com/products/DevTools/Hardware_Platforms.html ARM RealView] platforms - by ARM Ltd. | ||
** Linux BSP and resources available at http://www.arm.com/linux with associated [http://www.linux-arm.org/git GIT tree] | ** Linux BSP and resources available at http://www.arm.com/linux with associated [http://www.linux-arm.org/git GIT tree] | ||
| − | * XScale/PXA - by Marvell (formerly Intel) | + | * XScale/PXA - by Marvell (formerly Intel) -- has MMU |
** Linux BSPs available in mainline kernel or from Marvell web-site (for Monahans) | ** Linux BSPs available in mainline kernel or from Marvell web-site (for Monahans) | ||
* Orion - by Marvell | * Orion - by Marvell | ||
** Linux BSP for Orion-2 SoC available on [http://marc.info/?l=linux-arm-kernel&m=117869744222933&w=2 ARM Linux Mailing List]. | ** Linux BSP for Orion-2 SoC available on [http://marc.info/?l=linux-arm-kernel&m=117869744222933&w=2 ARM Linux Mailing List]. | ||
| + | * Philips LPC21xx series of ARM processors are currently the lowest-cost ARM processors available. But they have no MMU. | ||
| + | * [[JuiceBox]] uses a ARM S3C44B0X. It runs uClinux. | ||
| + | * Atmel AT91RM9200 -- has MMU. | ||
== MIPS == | == MIPS == | ||
Revision as of 16:42, 11 June 2007
Here is a list of different processor families, with miscellaneous notes for development information:
See also Hardware Hacking for a list of systems that include these processors.
Contents |
ARM
See ARM website and the Wikipedia ARM article for information about the ARM architecture and processor family.
From the Linux perspective, there are 2 very different kinds of ARM chips:
- ARM devices that include a MMU, and can run standard Linux
- ARM devices without a MMU, which cannot run standard Linux. However, they can run uClinux. The Linux/Microcontroller project is a port of Linux to systems without a Memory Management Unit (MMU), such as the ARM7TDMI and the Microblaze. ( http://uclinux.org/ ). Is it true that the the Linux security permissions system relies on the MMU?
(FIXME: indicate whether or not each chip has a MMU)
Some major ARM platforms/SOCs are:
- DaVinci from Texas Instruments
- OMAP - by TI
- i.MX - by FreeScale
- Freescale's GIT repository for i.MX Linux support is at: http://opensource.freescale.com
- Info about this repository, as of April 2007 is at: http://www.spinics.net/lists/arm-kernel/msg39771.html
- Freescale's GIT repository for i.MX Linux support is at: http://opensource.freescale.com
- ARM RealView platforms - by ARM Ltd.
- Linux BSP and resources available at http://www.arm.com/linux with associated GIT tree
- XScale/PXA - by Marvell (formerly Intel) -- has MMU
- Linux BSPs available in mainline kernel or from Marvell web-site (for Monahans)
- Orion - by Marvell
- Linux BSP for Orion-2 SoC available on ARM Linux Mailing List.
- Philips LPC21xx series of ARM processors are currently the lowest-cost ARM processors available. But they have no MMU.
- JuiceBox uses a ARM S3C44B0X. It runs uClinux.
- Atmel AT91RM9200 -- has MMU.
MIPS
need info here
SH
need info here
x86
need info here
