Changes between Version 18 and Version 19 of FSA

Timestamp:

04/29/2025 04:10:21 PM (6 days ago)

Author:

Tim Harvey

Comment:

added gpio details for GW16FE0

FSA

@@ -88 +88 @@
  1. The COEX[1..3] signals are ganged to each FSA socket on the baseboard
  2. There are no SPI pins defined in the M.2 specification; MOSI/MSIO/CLK above are defined as 'VENDOR SPECIFIED', SPI_SS0 (pin 64) is defined as RESERVED in v1-v3 of the M.2 specification and as VIO 1.8V in the v4 specification, and ALERT# is defined as an I2C interrupt which can also be used as a SPI interrupt.
+
+
+The following FSA GPIO's are used on this adapter:
+ * GPIO0: wdisable1# (default output-high for enabled)
+ * GPIO1: wdisable2# (default output-high for enabled)
+
+Example:
+ * M.2 E-Key card in FSA1:
+  - driving wdisable1# low in U-Boot
+{{{#!bash
+u-boot=> gpio clr fsa1_wdisable1#"
+}}}
+ * M.2 E-Key card in FSA2:
+  - driving wdisable2# low in Linux:
+{{{#!bash
+# gpioset --mode signal $(gpiofind "fsa2_wdisable2#")=0
+}}}
+