Changes between Version 17 and Version 18 of FSA

Timestamp:

04/29/2025 04:05:47 PM (6 days ago)

Author:

Tim Harvey

Comment:

added pinout and gpio details for GW16FP0

FSA

@@ -1835 +1835 @@
 
 == GW16FP0 FSA to Mini-PCIe Adapter
-
-This adapter allows standard Mini-PCIe wireless cards and modems to be plugged into a VeniceFLEX SBC. 
-
-This adapter exposes a Mini-PCIe slot that adheres to the generic Mini-PCIe specification, primarily with PCIe and USB signals. 
+The GW16FP0 FSA MiniPCIe adapter provides a MiniPCIe socket with the following:
+ * PCIe (1-lane Gen3)
+ * USB3.0 (muxed with PCIe so you must select either PCIe (default) or USB 3.0 via a GPIO)
+ * SIM (routed directly to card)
+ * W_DISABLE# (3.3V I/O)
+ * PERST# (3.3V I/O)
+ * USB2.0
+ * LEDW# (Yellow OD)
+ * LEDL# (Yellow OD)
+
+This adapter exposes a Mini-PCIe slot that adheres to the generic Mini-PCIe specification, primarily with PCIe and USB signals.
+
+Pinout (from baseboard perspective):
+||= pin =||= signal              =||= signal    =||= pin =||
+||  1    || NC                    || 3.3V        || 2     ||
+||  3    || NC                    || GND         || 4     ||
+||  5    || NC                    || NC          || 6     ||
+||  7    || NC                    || SIM_VDD     || 8     ||
+||  9    || GND                   || SIM_DAT     || 10    ||
+||  11   || REFCLK-^^^3^^^        || SIM_CLK     || 12    ||
+||  13   || REFCLK+^^^3^^^        || SIM_RST     || 14    ||
+||  15   || GND                   || NC          || 16    ||
+||  17   || NC                    || GND         || 18    ||
+||  19   || NC                    || W_DISABLE#  || 20    ||
+||  21   || GND                   || PERST#      || 22    ||
+||  23   || PERN0/USB-RX- ^^^1^^^ || 3.3V        || 24    ||
+||  25   || PERP0/USB-RX+ ^^^1^^^ || GND         || 26    ||
+||  27   || GND                   || NC (can be 1.5V) ^^^2^^^ || 28    ||
+||  29   || GND                   || NC          || 30    ||
+||  31   || PETN0/USB_TX- ^^^1^^^ || NC          || 32    ||
+||  33   || PETP0/USB_TX+ ^^^1^^^ || GND         || 34    ||
+||  35   || GND                   || USB_DN      || 36    ||
+||  37   || GND                   || USB_DP      || 38    ||
+||  39   || 3.3V                  || GND         || 40    ||
+||  41   || 3.3V                  || LEDW#(OD)   || 42    ||
+||  43   || GND                   || LEDL#(OD)   || 44    ||
+||  45   || NC                    || NC          || 46    ||
+||  47   || NC                    || NC (can be 1.5V)^^^2^^^ || 48    ||
+||  49   || NC                    || GND         || 50    ||
+||  51   || NC                    || 3.3V        || 52    ||
+ 1. A GPIO steerable MUX allows the PCI signals to be muxed to USB2.0 
+ 2. While a VDD_1P5 signal is part of the miniPCIe specification most cards do not use it and the voltage regulator is unloaded by default (but can be loaded as a special build)
+ 3. PCI REFCLK can be isolated via resistor build options (many MiniPCIe cards that do not use PCI use these signals for something else)
+
+The following FSA GPIO's are used on this adapter:
+ * GPIO0: wdisable# (default output-high for enabled)
+ * GPIO1: pci_usb_sel (default output-low for PCI)
+
+Example:
+ * MiniPCIe card in FSA1:
+  - using USB3.0 instead of PCI: drive fsa1_sel_pci# low to select USB3 in U-Boot as part of 'preboot' script:
+{{{#!bash
+u-boot=> setenv preboot "$preboot; gpio clr fsa1_sel_pci#"
+u-boot=> saveenv
+}}}
+ * MiniPCIe card in FSA2:
+  - disable RF in Linux: drive fsa2_wdisable# low
+{{{#!bash
+# gpioset --mode signal $(gpiofind "fsa2_wdisable#")=0
+}}}
+