From 0ce3f6bcfe8241e51dd6936d24e6a88c907c535d Mon Sep 17 00:00:00 2001
From: Joel Challis <git@zvecr.com>
Date: Thu, 19 Jan 2023 00:27:00 +0000
Subject: De-duplicate platform detection (#19603)

---
 builddefs/build_keyboard.mk | 24 ++++++------------------
 1 file changed, 6 insertions(+), 18 deletions(-)

(limited to 'builddefs/build_keyboard.mk')

diff --git a/builddefs/build_keyboard.mk b/builddefs/build_keyboard.mk
index ec0336f7c3..6d355c9b85 100644
--- a/builddefs/build_keyboard.mk
+++ b/builddefs/build_keyboard.mk
@@ -184,6 +184,12 @@ include $(BUILDDEFS_PATH)/converters.mk
 
 include $(BUILDDEFS_PATH)/mcu_selection.mk
 
+# PLATFORM_KEY should be detected in info.json via key 'processor' (or rules.mk 'MCU')
+ifeq ($(PLATFORM_KEY),)
+    $(call CATASTROPHIC_ERROR,Platform not defined)
+endif
+PLATFORM=$(shell echo $(PLATFORM_KEY) | tr '[:lower:]' '[:upper:]')
+
 # Find all the C source files to be compiled in subfolders.
 KEYBOARD_SRC :=
 
@@ -257,24 +263,6 @@ ifneq ("$(wildcard $(KEYBOARD_PATH_5)/$(KEYBOARD_FOLDER_5).h)","")
     FOUND_KEYBOARD_H = $(KEYBOARD_FOLDER_5).h
 endif
 
-# Determine and set parameters based on the keyboard's processor family.
-# We can assume a ChibiOS target When MCU_FAMILY is defined since it's
-# not used for LUFA
-ifdef MCU_FAMILY
-    PLATFORM=CHIBIOS
-    PLATFORM_KEY=chibios
-    FIRMWARE_FORMAT?=bin
-    OPT_DEFS += -DMCU_$(MCU_FAMILY)
-else ifdef ARM_ATSAM
-    PLATFORM=ARM_ATSAM
-    PLATFORM_KEY=arm_atsam
-    FIRMWARE_FORMAT=bin
-else
-    PLATFORM=AVR
-    PLATFORM_KEY=avr
-    FIRMWARE_FORMAT?=hex
-endif
-
 # Find all of the config.h files and add them to our CONFIG_H define.
 CONFIG_H :=
 ifneq ("$(wildcard $(KEYBOARD_PATH_5)/config.h)","")
-- 
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