docs/install/bbb_setup.html: Add info about wp/hold and pinouts

2 files changed, 26 insertions, 40 deletions

diff --git a/docs/install/bbb_setup.html b/docs/install/bbb_setup.html
index 0c51251..d1a4e3d 100644
--- a/docs/install/bbb_setup.html
+++ b/docs/install/bbb_setup.html
@@ -297,6 +297,21 @@ Note: flashrom can never write if the flash chip isn't found automatically.
  18              -       - 3.3V PSU RED
  22              -       - NC - this is pin 1 on the flash chip
 <i>This is how you will connect. Numbers refer to pin numbers on the BBB, on the plugs near the DC jack.</i>
+
+You may also need to connect pins 1 and 9 (tie to 3.3V supply). These are HOLD# and WP#.
+On some systems they are held high, if the flash chip is attached to the board.
+If you're flashing a chip that isn't connected to a board, you'll almost certainly
+have to connect them.
+
+SOIC16 pinout (more info available online, or in the datasheet for your flash chip):
+HOLD	1-16	SCK
+VDD	2-15	MOSI
+N/C	3-14	N/C
+N/C	4-13	N/C
+N/C	5-12	N/C
+N/C	6-11	N/C
+SS		7-10	GND
+MISO	8-9	WP
 </pre>
 			<p>
 				The following shows how to connect clip to the BBB	(on the P9 header), for SOIC-8 (clip: Pomona 5250):
@@ -307,6 +322,17 @@ Note: flashrom can never write if the flash chip isn't found automatically.
  NC              -       - 21
  3.3V PSU RED    -       - 17 - this is pin 1 on the flash chip
 <i>This is how you will connect. Numbers refer to pin numbers on the BBB, on the plugs near the DC jack.</i>
+
+You may also need to connect pins 3 and 7 (tie to 3.3V supply). These are HOLD# and WP#.
+On some systems they are held high, if the flash chip is attached to the board.
+If you're flashing a chip that isn't connected to a board, you'll almost certainly
+have to connect them.
+
+SOIC8 pinout (more info available online, or in the datasheet for your flash chip):
+SS		1-8	VDD
+MISO	2-7	HOLD
+WP		3-6	SCK
+GND	4-5	MOSI
 </pre>
 			<p>
 				<b>NC = no connection</b>
diff --git a/docs/tasks.html b/docs/tasks.html
index 5ce2bc9..f59a585 100644
--- a/docs/tasks.html
+++ b/docs/tasks.html
@@ -253,46 +253,6 @@
 							Get them for the following remaining boards: X60, T60, macbook21, R400
 						</li>
 						<li>
-							Apparently, leaving HOLD and WP pins floating (unconnected) isn't a good idea.
-							Information online says that this needs to be connected along with 3.3V - look into this.
-							(it is specific to each flash chip, so read the datasheets).
-							<ul>
-								<li>
-									eg http://flashrom.org/FT2232SPI_Programmer - 
-									&quot; The WP# and HOLD# pins should be tied to VCC! If you leave them unconnected you'll likely experience strange issues.&quot;
-								</li>
-								<li>
-									&lt;pehjota&gt; stefanct: We've never had any &quot;strange issues&quot; with leaving WP# and HOLD# 
-									unconnected on the Macronix and Atmel SOIC-8 and SOIC-16 flash chips on the X200.  
-									IIRC, the datasheets don't say how those pins are wired internally or whether they can 
-									be left unconnected.  But I tested their voltages while flashing, and they float high 
-									on their own, so they seem to support it fine.
-								</li>
-								<li>
-									&lt;pehjota&gt; fchmmr: You would connect the WP# and HOLD# pins to 3.3 V (on an ATX PSU you'd 
-									hook up more cables to the other orange pins, with your PSU I guess you'd wrap more wires 
-									around the 3.3-V screw), just like you do VCC.  But as I said above, it doesn't seem to 
-									be necessary (WP# and HOLD# seem to be held high already).<br/>
-									&lt;pehjota&gt; I got a solid ~3.3 V (i.e. pulled high, not floating between high and low) 
-									from WP# and HOLD# with just VCC, GND, MOSI, MISO, CS#, and SCLK connected.  Plus, we haven't 
-									had any write protection issues as I'd expect from floating WP# and HOLD#, AFAIK.<br/>
-									&lt;pehjota&gt; fchmmr: These pins do nothing if they're held high.  The "#" (not) means they cause different behavior when held low.
-								</li>
-								<li>
-									&lt;stefanct&gt; fchmmr: pehjota: it may not be a problem if the chip is soldered to the x200, but it surely is when it isnt.
-								</li>
-								<li>
-									&lt;stefanct&gt; yes...
-									&lt;stefanct&gt; a small note noting that would be appreciated because there are enough people out there already that ignore those pins and get stuck
-									&gt;pehjota&gt; stefanct: You mean a note in the libreboot documentation explaining why we don't have to connect HOLD# and WP# to anything and how they would have to be tied to VCC on a chip not soldered to a board?
-									&lt;Kamilion&gt; How about a more useful note that explains the whole discussion you two had succinctly?
-									&lt;Kamilion&gt; Not everyone is going to be an EE to know about the # indicating the pin should be pulled low to be active.
-									&lt;Kamilion&gt; reminds me, I need to pull out my pomona and try to fix some intel NIC roms
-									&lt;stefanct&gt; pehjota: yes
-								</li>
-							</ul>
-						</li>
-						<li>
 							Adapt the notes at <a href="install/bbb_setup.html#stability">install/bbb_setup.html#stability</a>
 							into a full guide.
 						</li>