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-rw-r--r--www/faq.md26
-rw-r--r--www/index.md4
2 files changed, 28 insertions, 2 deletions
diff --git a/www/faq.md b/www/faq.md
index 38607be4..cf6e2dae 100644
--- a/www/faq.md
+++ b/www/faq.md
@@ -1122,6 +1122,32 @@ Are other operating systems compatible?
Unknown. Probably not.
+Does libreboot make my machine 100% free?
+==========================================
+Libreboot on all devices only provides host hardware init firmware images,
+that can be written 25XX SPI NOR Flash. But on many systems there are
+a lot more computers running blob firmware.
+Some of them are not practicable to replace due to being located on Mask ROM.
+Some devices have EC firmware being build as well.
+Additionally, besides software components, there are hardware ones
+(from ICs to boards) that are not released on OSHW licenses.
+We do not have a single device that would be "100% free",
+and such absolutes are nearly impossible to reach.
+
+Notable proprietary blobs (not a complete list):
+* All devices
+ * SATA/PATA Hard Drive/Optical Disc Drive Firmware
+ ([often contain powerful ARM based computer](
+ http://spritesmods.com/?art=hddhack&page=1))
+ * Pendrives and any USB peripherals - they contain a computer
+ with code running to at the very least handle the USB protocol
+* ThinkPads:
+ * EC Firmware (H8S until including Sandy Bridge, later ARC based MEC16xx)
+ * TrackPoint Firmware (8051)
+ * Penabled devices contain µPD78F0514 MCU on wacom subboard,
+ and Atmega (AVR) on led indicator/button board
+ * Battery BMS, bq8030 (CoolRISC C816)
+
Where can I learn more about electronics
==========================================
diff --git a/www/index.md b/www/index.md
index 38cc88a5..a273e739 100644
--- a/www/index.md
+++ b/www/index.md
@@ -38,8 +38,8 @@ which makes computers functional whether for day to day usage or software
development.
Libreboot's main upstream provider is [coreboot](https://www.coreboot.org/),
-and [we don't include binary blobs in our images]
-(docs/#about-the-libreboot-project).
+and [we don't include binary blobs
+in our images](docs/#about-the-libreboot-project).
We upstream our custom patches to projects like coreboot,
depthcharge, GRUB, and flashrom where possible. Together, our build system
and documentation is provided with the aim of making free boot firmware