treewide: Fix some typos

lib/lm4f/rcc.c

@@ -28,7 +28,7 @@ Alexandru Gagniuc <mr.nuke.me@gmail.com>
 
  * \brief <b>libopencm3 LM4F Clock control API</b>
  *
- * The LM$F clock API provides functionaliity for manipulating the system clock,
+ * The LM$F clock API provides functionality for manipulating the system clock,
  * oscillator, and PLL. Functions are provided for fine-grained control of clock
  * control registers, while also providing higher level functionality to easily
  * configure the main system clock source.
@@ -98,7 +98,7 @@ Alexandru Gagniuc <mr.nuke.me@gmail.com>
  * @endcode
  *
  * If write access is desired (i.e. when changing the system clock via the
- * fine-grained mechanisms), then include the following  line in your code:
+ * fine-grained mechanisms), then include the following line in your code:
  * @code
  *	extern uint32_t lm4f_rcc_sysclk_freq;
  * @endcode
@@ -419,7 +419,7 @@ static uint32_t xtal_to_freq(enum xtal_t xtal)
  * \brief Configure the system clock source
  *
  * Sets up the system clock, including configuring the oscillator source, and
- * PLL to acheve the desired system clock frequency. Where applicable, The LM4F
+ * PLL to achieve the desired system clock frequency. Where applicable, The LM4F
  * clock API uses the new RCC2 register to configure clock parameters.
  *
  * Enables the main oscillator if the clock source is OSCSRC_MOSC. If the main

lib/stm32/common/rcc_common_all.c

@@ -271,7 +271,7 @@ void rcc_osc_bypass_disable(enum rcc_osc osc)
 }
 
 /* This is a helper to calculate dividers that go 2/4/8/16/64/128/256/512.
- * These dividers also use the top bit as an "enable". This is tyipcally
+ * These dividers also use the top bit as an "enable". This is typically
  * used for AHB and other system clock prescaler. */
 uint16_t rcc_get_div_from_hpre(uint8_t div_val) {
 	if (div_val < 0x8) {

mk/README

@@ -67,7 +67,7 @@ Variables to tell gcc about project dependencies and input files
 ----------------------------------------------------------------
 
 LDSCRIPT	Linker script file name (can be generated or fixed)
-LIBDEPS		Array of library filenames that shoud be rebuilt if needed
+LIBDEPS		Array of library filenames that should be rebuilt if needed
 LDLIBS		Array of libraries to be linked with (array of -l<libname>)
 OBJS		Array of object files to be built