From 0eee4b0b160f15c27da9291e92477df04c02e8c0 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Wed, 9 Dec 2020 18:02:30 +0100
Subject: [PATCH] arduino nano: add cpu frequency to kconfig
---
src/arch/arduino-nano/Kconfig | 9 +++++++++
src/arch/arduino-nano/Makefile.inc | 4 ++++
2 files changed, 13 insertions(+)
diff --git a/src/arch/arduino-nano/Kconfig b/src/arch/arduino-nano/Kconfig
index 071c18a..ab25a8f 100644
--- a/src/arch/arduino-nano/Kconfig
+++ b/src/arch/arduino-nano/Kconfig
@@ -1,6 +1,15 @@
# Copyright 2020 Daniel Friesel
#
# SPDX-License-Identifier: CC0-1.0
+
+config arch_arduino_nano_cpufreq
+int "CPU Frequency"
+#!accept [62500, 125000, 250000, 500000, 1000000, 2000000, 4000000, 8000000, 16000000]
+range 62500 16000000
+default 16000000
+help
+ Assumes an externel 16MHz crystal to be present
+
config arch_arduino_nano_driver_adc
bool "ADC (Analog-Digital-Converter)"
select meta_driver_adc
diff --git a/src/arch/arduino-nano/Makefile.inc b/src/arch/arduino-nano/Makefile.inc
index e524027..2365cfd 100644
--- a/src/arch/arduino-nano/Makefile.inc
+++ b/src/arch/arduino-nano/Makefile.inc
@@ -13,6 +13,10 @@ ifdef CONFIG_arch_arduino_nano_mega168
BAUD = 19200
endif
+ifdef CONFIG_arch_arduino_nano_cpufreq
+ cpu_freq = ${CONFIG_arch_arduino_nano_cpufreq}
+endif
+
cpu_freq ?= 16000000
COMMON_FLAGS += -Werror=overflow
--
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