From a8a0eb825ea7208502954865ab09e7ec8a90221c Mon Sep 17 00:00:00 2001
From: Vegard Storheil Eriksen <zyp@jvnv.net>
Date: Sun, 7 Jul 2013 19:57:19 +0200
Subject: Don't build STM32-specific code for other targets.

---
 i2c/i2c.cpp       | 4 ++++
 rcc/rcc.cpp       | 4 ++++
 startup/entry.cpp | 4 ----
 usart/usart.cpp   | 4 ++++
 4 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/i2c/i2c.cpp b/i2c/i2c.cpp
index a395b13..833844e 100644
--- a/i2c/i2c.cpp
+++ b/i2c/i2c.cpp
@@ -1,3 +1,5 @@
+#if defined(STM32F1) || defined(STM32F4)
+
 #include "i2c.h"
 
 #include <rcc/rcc.h>
@@ -143,3 +145,5 @@ void I2C_t::read_reg(uint8_t addr_, uint8_t reg_, uint8_t len, uint8_t* buf) {
 		Thread::yield();
 	}
 }
+
+#endif
diff --git a/rcc/rcc.cpp b/rcc/rcc.cpp
index 7e711f9..9f10f7c 100644
--- a/rcc/rcc.cpp
+++ b/rcc/rcc.cpp
@@ -1,3 +1,5 @@
+#if defined(STM32F1) || defined(STM32F3) || defined(STM32F4)
+
 #include "rcc.h"
 #include "flash.h"
 
@@ -49,3 +51,5 @@ void rcc_init() {
 	
 	#endif
 }
+
+#endif
diff --git a/startup/entry.cpp b/startup/entry.cpp
index 64aac37..3ad18f2 100644
--- a/startup/entry.cpp
+++ b/startup/entry.cpp
@@ -1,5 +1,4 @@
 #include <stdint.h>
-#include <rcc/rcc.h>
 #include <cortex_m/fpu.h>
 
 int main();
@@ -18,9 +17,6 @@ extern funcp_t _fini_array_start;
 extern funcp_t _fini_array_end;
 
 void __attribute__((naked)) entry() {
-	// Initialize HAL.
-	rcc_init();
-	
 	// Load .data from rom image.
 	uint32_t* rp = &_data_rom;
 	uint32_t* wp = &_data_start;
diff --git a/usart/usart.cpp b/usart/usart.cpp
index 61fe393..9de49af 100644
--- a/usart/usart.cpp
+++ b/usart/usart.cpp
@@ -1,3 +1,5 @@
+#if defined(STM32F1) || defined(STM32F3) || defined(STM32F4)
+
 #include "usart.h"
 
 template<>
@@ -5,3 +7,5 @@ void interrupt<Interrupt::USART1>() {
 	USART1.recv();
 	//GPIOB.ODR ^= 1 << 1;
 }
+
+#endif
-- 
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