Changes between Version 21 and Version 22 of FSA

Timestamp:

04/29/2025 05:15:03 PM (7 months ago)

Author:

Tim Harvey

Comment:

moved power enable section

FSA

@@ -150 +150 @@
 
 
+
+== FSA Card Power Enable
+Power enable allows the power to be completely removed from the Mini-PCIe or M.2 card from a Linux GPIO. This can be useful for resetting devices and/or power saving.
+
+If an FSA adapter and baseboard supports power enable for an FSA socket, the GPIO will be named 'fsa<n>_card_pen' and can be accessed in both Linux and U-Boot. For example:
+ * disable and re-enable card power on FSA2:
+  - In U-Boot:
+{{{#!bash
+gpio clr fsa2_card_pen # drive low to disable
+gpio set fsa2_card_pen # drive high to enable
+}}}
+  - In Linux:
+{{{#!bash
+gpioset --mode exit $(gpiofind "fsa2_card_pen")=0 # drive low to disable
+gpioset --mode exit $(gpiofind "fsa2_card_pen")=1 # drive high to enable
+}}}
+
+Note that card power enable is available on all current FSA adapters and on the GW82xx-C (C Revision) baseboard.
+
 == GW82xx Baseboard
 The GW82xx has two FSA sockets:
  * FSA1 (J29): USB2.0, USB3.0, PCIE3.0 (2x 1x lanes), SPI, GPIO (3x), Power Enable
  * FSA2 (J30): USB2.0, USB3.0, PCIE3.0 (2x 1x lanes), PCM, UART (4-wire), SPI, SDIO (1.8V), GPIO (3x), Power Enable
-
-
-=== FSA Card Power Enable
-Power enable allows the power to be completely removed from the Mini-PCIe or M.2 card from a Linux GPIO. This can be useful for resetting devices and/or power saving.
-
-If an FSA adapter and baseboard supports power enable for an FSA socket, the GPIO will be named 'fsa<n>_card_pen' and can be accessed in both Linux and U-Boot. For example:
- * disable and re-enable card power on FSA2:
-  - In U-Boot:
-{{{#!bash
-gpio clr fsa2_card_pen # drive low to disable
-gpio set fsa2_card_pen # drive high to enable
-}}}
-  - In Linux:
-{{{#!bash
-gpioset --mode exit $(gpiofind "fsa2_card_pen")=0 # drive low to disable
-gpioset --mode exit $(gpiofind "fsa2_card_pen")=1 # drive high to enable
-}}}
-
-Note that card power enable is available on all current FSA adapters and on the GW82xx-C (C Revision) baseboard.
 
 == GW16FE0 FSA M.2 E-Key Adapter