2 files changed, 19 insertions, 17 deletions

diff --git a/quantum/rgblight/rgblight.c b/quantum/rgblight/rgblight.c
index 02188df95b..ea28801a40 100644
--- a/quantum/rgblight/rgblight.c
+++ b/quantum/rgblight/rgblight.c
@@ -177,18 +177,19 @@ void rgblight_check_config(void) {
     }
 }
 
-uint32_t eeconfig_read_rgblight(void) {
+uint64_t eeconfig_read_rgblight(void) {
 #ifdef EEPROM_ENABLE
-    return eeprom_read_dword(EECONFIG_RGBLIGHT);
+    return (uint64_t)((eeprom_read_dword(EECONFIG_RGBLIGHT)) | ((uint64_t)eeprom_read_byte(EECONFIG_RGBLIGHT_EXTENDED) << 32));
 #else
     return 0;
 #endif
 }
 
-void eeconfig_update_rgblight(uint32_t val) {
+void eeconfig_update_rgblight(uint64_t val) {
 #ifdef EEPROM_ENABLE
     rgblight_check_config();
-    eeprom_update_dword(EECONFIG_RGBLIGHT, val);
+    eeprom_update_dword(EECONFIG_RGBLIGHT, val & 0xFFFFFFFF);
+    eeprom_update_byte(EECONFIG_RGBLIGHT_EXTENDED, (val >> 32) & 0xFF);
 #endif
 }
 
@@ -263,13 +264,13 @@ void rgblight_reload_from_eeprom(void) {
     }
 }
 
-uint32_t rgblight_read_dword(void) {
+uint64_t rgblight_read_qword(void) {
     return rgblight_config.raw;
 }
 
-void rgblight_update_dword(uint32_t dword) {
+void rgblight_update_qword(uint64_t qword) {
     RGBLIGHT_SPLIT_SET_CHANGE_MODEHSVS;
-    rgblight_config.raw = dword;
+    rgblight_config.raw = qword;
     if (rgblight_config.enable)
         rgblight_mode_noeeprom(rgblight_config.mode);
     else {
@@ -489,7 +490,7 @@ void rgblight_increase_speed_helper(bool write_to_eeprom) {
     if (rgblight_config.speed < 3) rgblight_config.speed++;
     // RGBLIGHT_SPLIT_SET_CHANGE_HSVS; // NEED?
     if (write_to_eeprom) {
-        eeconfig_update_rgblight(rgblight_config.raw); // EECONFIG needs to be increased to support this
+        eeconfig_update_rgblight(rgblight_config.raw);
     }
 }
 void rgblight_increase_speed(void) {
@@ -503,7 +504,7 @@ void rgblight_decrease_speed_helper(bool write_to_eeprom) {
     if (rgblight_config.speed > 0) rgblight_config.speed--;
     // RGBLIGHT_SPLIT_SET_CHANGE_HSVS; // NEED??
     if (write_to_eeprom) {
-        eeconfig_update_rgblight(rgblight_config.raw); // EECONFIG needs to be increased to support this
+        eeconfig_update_rgblight(rgblight_config.raw);
     }
 }
 void rgblight_decrease_speed(void) {
@@ -612,7 +613,7 @@ uint8_t rgblight_get_speed(void) {
 void rgblight_set_speed_eeprom_helper(uint8_t speed, bool write_to_eeprom) {
     rgblight_config.speed = speed;
     if (write_to_eeprom) {
-        eeconfig_update_rgblight(rgblight_config.raw); // EECONFIG needs to be increased to support this
+        eeconfig_update_rgblight(rgblight_config.raw);
         dprintf("rgblight set speed [EEPROM]: %u\n", rgblight_config.speed);
     } else {
         dprintf("rgblight set speed [NOEEPROM]: %u\n", rgblight_config.speed);
diff --git a/quantum/rgblight/rgblight.h b/quantum/rgblight/rgblight.h
index 2e85541313..001058f962 100644
--- a/quantum/rgblight/rgblight.h
+++ b/quantum/rgblight/rgblight.h
@@ -244,19 +244,20 @@ extern const uint16_t RGBLED_RGBTEST_INTERVALS[1] PROGMEM;
 extern const uint8_t  RGBLED_TWINKLE_INTERVALS[3] PROGMEM;
 extern bool           is_rgblight_initialized;
 
-// Should stay in sycn with rgb matrix config as we reuse eeprom storage for both (for now)
 typedef union {
-    uint32_t raw;
+    uint64_t raw;
     struct {
         bool    enable : 1;
         uint8_t mode : 7;
         uint8_t hue : 8;
         uint8_t sat : 8;
         uint8_t val : 8;
-        uint8_t speed : 8; // EECONFIG needs to be increased to support this
+        uint8_t speed : 8;
     };
 } rgblight_config_t;
 
+_Static_assert(sizeof(rgblight_config_t) == sizeof(uint64_t), "RGB Light EECONFIG out of spec.");
+
 typedef struct _rgblight_status_t {
     uint8_t base_mode;
     bool    timer_enabled;
@@ -367,10 +368,10 @@ HSV     rgblight_get_hsv(void);
 void     rgblight_init(void);
 void     rgblight_suspend(void);
 void     rgblight_wakeup(void);
-uint32_t rgblight_read_dword(void);
-void     rgblight_update_dword(uint32_t dword);
-uint32_t eeconfig_read_rgblight(void);
-void     eeconfig_update_rgblight(uint32_t val);
+uint64_t rgblight_read_qword(void);
+void     rgblight_update_qword(uint64_t qword);
+uint64_t eeconfig_read_rgblight(void);
+void     eeconfig_update_rgblight(uint64_t val);
 void     eeconfig_update_rgblight_current(void);
 void     eeconfig_update_rgblight_default(void);
 void     eeconfig_debug_rgblight(void);