Changes between Version 20 and Version 21 of FSA

Timestamp:

04/29/2025 05:13:54 PM (6 days ago)

Author:

Tim Harvey

Comment:

updated power enable section and linux gpio commands

FSA

@@ -142 +142 @@
   - In U-Boot:
 {{{#!bash
-u-boot=> gpio clr fsa2_wdisable#
+gpio clr fsa2_wdisable#
 }}}
   - In Linux:
 {{{#!bash
-# gpioset --mode signal $(gpiofind "fsa2_wdisable#")=0
+gpioset --mode exkt $(gpiofind fsa2_wdisable#)=0
 }}}
 
@@ -155 +155 @@
  * FSA2 (J30): USB2.0, USB3.0, PCIE3.0 (2x 1x lanes), PCM, UART (4-wire), SPI, SDIO (1.8V), GPIO (3x), Power Enable
 
-=== 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. 
-
-To toggle the gpio, use the gpioinfo command from the Linux command line to see the assigned GPIO. For more GPIO instructions, read [wiki:gpio#LinuxGPIO]
-
+
+=== 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
@@ -228 +241 @@
   - driving wdisable1# low in U-Boot
 {{{#!bash
-u-boot=> gpio clr fsa1_wdisable1#"
+gpio clr fsa1_wdisable1#
 }}}
  * M.2 E-Key card in FSA2:
   - driving wdisable2# low in Linux:
 {{{#!bash
-# gpioset --mode signal $(gpiofind "fsa2_wdisable2#")=0
+gpioset --mode exit $(gpiofind fsa2_wdisable2#)=0
 }}}
 
@@ -2041 +2054 @@
   - disable RF in Linux: drive fsa2_wdisable# low
 {{{#!bash
-# gpioset --mode signal $(gpiofind "fsa2_wdisable#")=0
-}}}
-
+gpioset --mode exit $(gpiofind fsa2_wdisable#)=0
+}}}
+