From 12e695ec7b160b1cc62831838244454b7edd03d3 Mon Sep 17 00:00:00 2001 From: Leah Woods Date: Sat, 18 Jul 2015 19:31:16 -0400 Subject: New board: ThinkPad R500 (experimental) The ich9deblob and ich9gen utilities were modified, so that they support reading and/or writing descriptor images where the GbE region is not defined. These utilities were also re-factored and tidied up a bit. A quick was noticed during the course of this work, in that Compenent 1 Density was being set to 8MiB constantly, even on systems with 4MiB flash chips. Component 2 Density was set statically to 2MiB. ich9gen now sets both to 4MiB or 8MiB, depending on whether building the descriptor for a 4MiB or 8MiB ROM image. There are still some ACPI bugs (see docs/hcl/r500.html), which will have to be fixed upstream. TODO: get hw reg dumps from a factory R500, and compare with the X200 or T400 dumps. --- (limited to 'docs/hcl/gm45_remove_me.html') diff --git a/docs/hcl/gm45_remove_me.html b/docs/hcl/gm45_remove_me.html index c78dfe1..d3aff4a 100644 --- a/docs/hcl/gm45_remove_me.html +++ b/docs/hcl/gm45_remove_me.html @@ -110,6 +110,17 @@
  • ich9fdgbe_4m.bin: this is for GM45 laptops with the 4MB flash chip.
  • ich9fdgbe_8m.bin: this is for GM45 laptops with the 8MB flash chip.
    • + +

    + Two other files will also be created, for the ThinkPad R500 which has a different NIC and, therefore, + no GbE region (for this laptop, it is not necessary to change the MAC address in the flash chip, because + it's burned into the NIC): +

    +

    Assuming that your libreboot image is named libreboot.rom, copy @@ -117,7 +128,18 @@ and then insert the descriptor+gbe file into the ROM image. For 8MiB flash chips:
    $ dd if=ich9fdgbe_8m.bin of=libreboot.rom bs=1 count=12k conv=notrunc
    For 4MiB flash chips:
    - $ dd if=ich9fdgbe_4m.bin of=libreboot.rom bs=1 count=12k conv=notrunc + $ dd if=ich9fdgbe_4m.bin of=libreboot.rom bs=1 count=12k conv=notrunc
    +

    +

    + For the ThinkPad R500, do this instead:
    + For 8MiB flash chips (highly unlikely on the ThinkPad R500):
    + $ dd if=ich9fdnogbe_8m.bin of=libreboot.rom bs=1 count=4k conv=notrunc
    + For 4MiB flash chips (You probably have this):
    + $ dd if=ich9fdnogbe_4m.bin of=libreboot.rom bs=1 count=4k conv=notrunc
    + NOTE: This shouldn't be necessary. Libreboot ROM images already contain a descriptor embedded inside + the ROM images for GM45, generated by the ich9gen utility. It's only desirable to re-insert your own + when changing the MAC address, which is unnecessary (actually impossible) on the R500, because on that laptop, + as already stated, the NIC already has the correct MAC address burned in, along with along configuration data.

    @@ -220,6 +242,11 @@ The first 4KiB contains the descriptor data region for your system, and the next 8KiB contains the gbe region (config data for your gigabit NIC). These 2 regions could actually be separate files, but they are joined into 1 file in this case.

    +

    + A 4KiB file named deblobbed_4kdescriptor.bin will alternatively appear, if no GbE region was detected inside the ROM image. + This is usually the case, when a discrete NIC is used (eg Broadcom) instead of Intel. Only the Intel NICs need a GbE region in + the flash chip. +

    Assuming that your libreboot image is named libreboot.rom, copy @@ -227,6 +254,14 @@ and then run:
    $ dd if=deblobbed_descriptor.bin of=libreboot.rom bs=1 count=12k conv=notrunc

    +

    + Alternatively, if you got a the deblobbed_4kdescriptor.bin file (no GbE defined), + do this: + $ dd if=deblobbed_4kdescriptor.bin of=libreboot.rom bs=1 count=4k conv=notrunc +

    +

    + +

    The utility will also generate 4 additional files: -- cgit v0.9.1