The issue was the SysTick timer, which was configured by the bootloader to
blink the backlight LEDs, but was not de-configured before booting to the
application.

Without the SysTick timer de-configured, the FreeRTOS tick timer, which relies
on the SysTick timer, fired before FreeRTOS could be properly configured. Since
the FreeRTOS SysTick handler contains some OS-specific functions and data, the
fact that these were not initialized probably led to a segfault.

This issue was fixed in boot.c, by de-configuring the SysTick timer.

Conflicts:
	sw/bootloader-an0042/main.c

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

The GCC optimization *brake* the bootloader code. It was happening
that on BOOT_jump() function call the ARM registers were not properly
set. The result was that the PC and SP register were pointing at the wrong
addresses.
Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

It was used with the loader-loader version. Without relocable code we
don't need to move the vector table for the bootloader (we'll need to do
that for the application)
Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

This will give a feedback to the user about the booting
Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

This is just for testing purpose
Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

two slow run before jump into bootloader code
two fast run before running bootloaer code
Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Create a set of internal utilities for the project. For the time being,
just the SuperCar blinking for the first MCU dev kit, and the delay
function.
Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>

This is just a copy of the Silicon Labs bootloader (AN0042).
Signed-off-by: Federico Vaga <federico.vaga@gmail.com>