From 02ec123eb820f9dc14450511eb317764b99c34f4 Mon Sep 17 00:00:00 2001
From: taco <taco@sly.nu>
Date: Sun, 9 Aug 2026 11:41:09 +1000
Subject: [PATCH] add QSPIFlash support for Seeed MeshTracker X1

---
 variants/meshtracker_x1/platformio.ini |  2 ++
 variants/meshtracker_x1/variant.cpp    |  3 +++
 variants/meshtracker_x1/variant.h      | 14 ++++++++++++++
 3 files changed, 19 insertions(+)

diff --git a/variants/meshtracker_x1/platformio.ini b/variants/meshtracker_x1/platformio.ini
index 6a46a79f9..1ce8bf17a 100644
--- a/variants/meshtracker_x1/platformio.ini
+++ b/variants/meshtracker_x1/platformio.ini
@@ -75,6 +75,7 @@ board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
 board_upload.maximum_size = 708608
 build_flags = ${MeshTracker_X1.build_flags}
   -I examples/companion_radio/ui-orig
+  -D QSPIFLASH=1
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
 ;  -D MESH_PACKET_LOGGING=1
@@ -103,6 +104,7 @@ board_build.ldscript = boards/nrf52840_s140_v7_extrafs.ld
 board_upload.maximum_size = 708608
 build_flags = ${MeshTracker_X1.build_flags}
   -I examples/companion_radio/ui-orig
+  -D QSPIFLASH=1
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D BLE_PIN_CODE=123456
diff --git a/variants/meshtracker_x1/variant.cpp b/variants/meshtracker_x1/variant.cpp
index 5a685a8ef..27c4c22ef 100644
--- a/variants/meshtracker_x1/variant.cpp
+++ b/variants/meshtracker_x1/variant.cpp
@@ -70,6 +70,9 @@ void initVariant()
   pinMode(PIN_3V3_EN, OUTPUT);
   digitalWrite(PIN_3V3_EN, HIGH);
 
+  pinMode(PIN_FLASH_EN, OUTPUT);
+  digitalWrite(PIN_FLASH_EN, HIGH);
+
   pinMode(PIN_BAT_ADC_EN, OUTPUT);
   digitalWrite(PIN_BAT_ADC_EN, HIGH);
 
diff --git a/variants/meshtracker_x1/variant.h b/variants/meshtracker_x1/variant.h
index c3dbd274f..46414b488 100644
--- a/variants/meshtracker_x1/variant.h
+++ b/variants/meshtracker_x1/variant.h
@@ -122,3 +122,17 @@
 // Buzzer
 
 #define BUZZER_PIN              (25)            // P0.25, pwm output
+
+////////////////////////////////////////////////////////////////////////////////
+// QSPI Flash
+
+#define PIN_FLASH_EN           (15)             // P0.15 (Flash power enable)
+
+#define PIN_QSPI_SCK           (19)             // P0.19
+#define PIN_QSPI_CS            (20)             // P0.20
+#define PIN_QSPI_IO0           (21)             // P0.21
+#define PIN_QSPI_IO1           (22)             // P0.22
+#define PIN_QSPI_IO2           (23)             // P0.23
+#define PIN_QSPI_IO3           (32)             // P1.00
+
+#define EXTERNAL_FLASH_DEVICES  GD25Q64C
\ No newline at end of file