Group: Hardware/TODO/DUPLICATE INFO/Processors

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= Processor, Compiler, Links, Status =
 +
{| class="wikitable"
 +
|-
 +
!Model
 +
!Links
 +
!3D
 +
!Treacherous
 +
|-
 +
|S5PV210
 +
|datasheet
 +
|PowerVR
 +
|Factory-configurable (*1)
 +
|-
 +
|Orion
 +
|
 +
|PowerVR
 +
|TBD
 +
|-
 +
|AM3715
 +
|
 +
|PowerVR
 +
|No (*2)
 +
|-
 +
|AM3703
 +
|
 +
|SIMD (NEON)
 +
|No (*2)
 +
|-
 +
|AM3892
 +
|
 +
|SIMD (NEON)
 +
|No (*2)
 +
|-
 +
|AM3894
 +
|
 +
|PowerVR
 +
|No (*2)
 +
|-
 +
|OMAP4400
 +
|
 +
|PowerVR
 +
|No (*2)
 +
|-
 +
|jz4760
 +
|linux-mips
 +
|SIMD FPU (XBurst)
 +
|No
 +
|-
 +
|PNX8490
 +
|product brief
 +
|SIMD (NEON)
 +
|TBD
 +
|-
 +
|PNX8491
 +
|product brief
 +
|PowerVR
 +
|TBD
 +
|}
 +
 +
== Notes ==
 +
 +
* (*1)It is possible to effectively disable any opportunity for the S5PC110 and S5PV210 from being "Treacherous", by blowing an e-fuse. Once "normal booting" has been selected, it is not possible to enable "secure" (Treacherous) booting:
 +
      6.1 OVERVIEW OF BOOTING SEQUENCE
 +
      S5PC110 consists of 64KB ROM and 96KB SRAM as internal memory. For booting, internal 64KB ROM and
 +
      internal 96KB SRAM regions can be used. S5PC110 boots from internal ROM to enable secure booting, which
 +
      ensures that the image cannot be altered by unauthorized users. To select secure booting or normal booting,
 +
      S5PC110 should use e-fuse information. This information cannot be altered after being programmed.
 +
* (*2)TI CPUs with hardware motherboard to prevent treachery. discussion here

Revision as of 13:22, 21 January 2011

Introduction

The purpose of this page is to allow CPUs to be evaluated for suitability for use in FSF-endorsed hardware. Presence or otherwise of a CPU on this page DOES NOT imply that it is an exhaustive list, nor does it imply that each and every CPU is or is not FSF-endorsed. Certain CPUs for example require proprietary libraries for their 3D Graphics, but over time a Free Software compliant alternative may become available, or may be reverse-engineered, in which case CPUs that previously did not qualify suddenly would.

So to be clear: this page is for the PURPOSES of evaluating CPUs, to store research about their present status, NOT to specifically or categorically state "this CPU is endorsed, period".

Processors, types and pricing (appx)

Manufacturer Model Type Speed Price
Samsung S5PV210 ARM Cortex A8 1ghz $14
Samsung Orion ARM Cortex A9 1ghz ?$45?
TI AM3715 ARM Cortex A8 1ghz $24
TI AM3703 ARM Cortex A8 1ghz $17
TI AM3892 ARM Cortex A8 1.5ghz n/a
TI AM3894 ARM Cortex A8 1.5ghz $43
TI OMAP4400 ARM Cortex A9 1ghz ?$45?
Ingenix jz4760 MIPS32 (x1) 700mhz $7
NXP PNX8490 ARM Cortex A9 800mhz n/a
NXP PNX8491 ARM Cortex A9 800mhz n/a

Processor, Compiler, Links, Status

Model Links 3D Treacherous
S5PV210 datasheet PowerVR Factory-configurable (*1)
Orion PowerVR TBD
AM3715 PowerVR No (*2)
AM3703 SIMD (NEON) No (*2)
AM3892 SIMD (NEON) No (*2)
AM3894 PowerVR No (*2)
OMAP4400 PowerVR No (*2)
jz4760 linux-mips SIMD FPU (XBurst) No
PNX8490 product brief SIMD (NEON) TBD
PNX8491 product brief PowerVR TBD

Notes

  • (*1)It is possible to effectively disable any opportunity for the S5PC110 and S5PV210 from being "Treacherous", by blowing an e-fuse. Once "normal booting" has been selected, it is not possible to enable "secure" (Treacherous) booting:
     6.1 OVERVIEW OF BOOTING SEQUENCE
     S5PC110 consists of 64KB ROM and 96KB SRAM as internal memory. For booting, internal 64KB ROM and
     internal 96KB SRAM regions can be used. S5PC110 boots from internal ROM to enable secure booting, which
     ensures that the image cannot be altered by unauthorized users. To select secure booting or normal booting,
     S5PC110 should use e-fuse information. This information cannot be altered after being programmed.
  • (*2)TI CPUs with hardware motherboard to prevent treachery. discussion here
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