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machine: add PCB SWTG018AS-V2.1.0 variant of the SWTGW218AS

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The SWTGW218AS label covers more than one PCB. On boards with the
SWTG018AS-V2.1.0 silkscreen the SFP module-detect is GPIO38 (no LOS pin
wired) and the LED block is wired differently, including a bi-color SFP
LED (green up to 2.5G, blue at 10G) that the LED-set encoding cannot
express. With the existing MACHINE_SWTGW218AS definition these boards
never detect an SFP module, so an SFP-uplinked switch comes up with no
working uplink.

Add the variant as its own machine define named by the PCB marking,
leaving MACHINE_SWTGW218AS unchanged for boards that match its wiring.
The LED register values are taken from the stock firmware; the PIN_MUX_0
write routes the blue-LED pin to the LED controller, without which no
LED register value can drive it. PIN_MUX_1/2 stay untouched so SFP
detect and i2c remain GPIOs.
This commit is contained in:
bloqaudio
2026-08-13 16:19:25 -05:00
parent 0c339e9123
commit 0998b7381f
2 changed files with 82 additions and 0 deletions
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machine.h
+1
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@@ -18,6 +18,7 @@
// #define MACHINE_HG0402XG_V1_1
// #define MACHINE_SWTG018AS_A_V_2_0
// #define MACHINE_SWTGW218AS
// #define MACHINE_PCB_SWTG018AS_V2_1_0
// #define MACHINE_PCB_K0402WS_V3
// #define MACHINE_K0501W_V2_0
// #define MACHINE_LIANGUO_ZX_SWTGW215AS