From df881bce8576f091b2d8cb53b8ce8a43aeedecde Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Sun, 25 Jan 2015 19:35:19 -0800
Subject: altos: Add self-flash support for STM32F042 processor

Also moves the usual address for applications out of the way of the
flash loader.

Signed-off-by: Keith Packard <keithp@keithp.com>
---
 src/stmf0/ao_timer.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/stmf0/ao_timer.c')

diff --git a/src/stmf0/ao_timer.c b/src/stmf0/ao_timer.c
index 82a4cad6..3aae7e55 100644
--- a/src/stmf0/ao_timer.c
+++ b/src/stmf0/ao_timer.c
@@ -247,6 +247,10 @@ ao_clock_init(void)
 	/* Clear reset flags */
 	stm_rcc.csr |= (1 << STM_RCC_CSR_RMVF);
 
+#if !AO_HSI && !AO_NEED_HSI
+	/* Turn off the HSI clock */
+	stm_rcc.cr &= ~(1 << STM_RCC_CR_HSION);
+#endif
 #if DEBUG_THE_CLOCK
 	/* Output SYSCLK on PA8 for measurments */
 
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