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Re: [Libreboot] R400: Using GPIO33 to enable reflash
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From: |
Denis 'GNUtoo' Carikli |
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Subject: |
Re: [Libreboot] R400: Using GPIO33 to enable reflash |
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Date: |
Wed, 20 Apr 2016 14:41:25 +0200 |
On Fri, 1 Apr 2016 21:54:41 +0000 (UTC)
Joerg Albert <address@hidden> wrote:
> AFAIK the protected range restrictions mentioned in the link above are
> implemented in the Lenovo BIOS. Does libreboot impose them as well
> based on the bits in the flash descriptor table?
Theses are two different things:
- The protected range registers are registers set by the boot
fimrware(here the Lenovo BIOS). In the case of the X200T a PR
register protects what seem to be the BIOS boot block.
- The flash descriptor bits are set, in the flash descriptor. What the
boot fimrware doesn't affect such bits.
Denis.
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