The CREDITS file was removed from barebox in 2015 by commit 6570288f2d97
("Remove the CREDITS file"). Remove references to it from several files.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Turns on the LED on MIO7 on the Zedboard to have a signal

Signed-off-by: Michael Graichen <michael.graichen@hotmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Added the configuration for FPGA an PCAP clock control

Signed-off-by: Michael Graichen <michael.graichen@hotmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fixed GEM0 MIO Settings according to what Vivado says

Signed-off-by: Michael Graichen <michael.graichen@hotmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Allows for significantly easier debugging of PBL functions.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Calling arm_cpu_lowlevel_init() from zynq_cpu_lowlevel_init() adds a stack
push/pop to the latter function which doesn't work this early in the boot.

As the BootROM apparently hands proccessor control to us in abort(!?!)
mode, setting up a stack requires duplicating most of arm_cpu_lowlevel_init().
To get around this catch-22 move the call to arm_cpu_lowlevel_init back into
the board lowlevel start function, so we don't need a stack at all.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Make sure the required workarounds for CPU errata are applied.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

If the code is already executing in DRAM, the PS7 init must not be
executed, as it initializes the DRAM controller.

As the OCM can be configured to an address which aliases with the DRAM
address space we can't reliably infer if we are running from OCM or
DRAM from the execution address. So instead of using the address, look
at the OCM mapping, as the BootROM leaves a quite unique mapping behind
with 192KB OCM mapped at the low address and 64KB mapped to the high
address.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Move the PS7 inititalization into its own function. This helps
readability and logically splits the FPGA toolchain generated
setup from the reset of the board init.

Also execute the PS7 setup after the lowlevel CPU init, as this
is the regular order used in the Barebox codebase.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Finally move over to a multi-image based build.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Provide the DTB to allow devices to be probed from there,
instead of board code.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

barebox_arm_reset_vector() is a global function but we never provided a
prototype anywhere. The prototypes differ for the different boards, so
to provide a common prototype we must harmonize them.

void barebox_arm_reset_vector(uint32_t r0, uint32_t r1, uint32_t r2)

Should be suitable for all boards.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Mostly to make it clear that boarddata needs to be
something we can dereference.

As this is a pretty invasive change, use the opportunity
to make the signature 64bit safe.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

The ZedBoard has a connection for the GEM0. Use it.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

The Avnet ZedBoard is an evalboard with a Zynq-7020 based MPSoC.
There is also a Digilent ZedBoard, that is the same but only for
academic customers.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>