zynq: Use arch_cpu_init() instead of lowlevel_init()

Zynq lowlevel_init() was implemented in C but stack
pointer is setup after function call in _main().
Move architecture setup to arch_cpu_init() which is call
as the first function in board_init_f() which
already have correct stack pointer.

Reported-by: Sven Schwermer <sven.schwermer@tuhh.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/arch/arm/cpu/armv7/zynq/cpu.c b/arch/arm/cpu/armv7/zynq/cpu.c
index 156cb0099ab914467262ba4aca9c70e1bee39b34..09bec8b45e1ed6fa7d93d6d54dfd25a692155caa 100644 (file)
--- a/arch/arm/cpu/armv7/zynq/cpu.c
+++ b/arch/arm/cpu/armv7/zynq/cpu.c
@@ -26,6 +26,10 @@
 #include <asm/arch/hardware.h>
 
 void lowlevel_init(void)
+{
+}
+
+int arch_cpu_init(void)
 {
        zynq_slcr_unlock();
        /* remap DDR to zero, FILTERSTART */
@@ -47,6 +51,8 @@ void lowlevel_init(void)
        writel(0xC, &slcr_base->ddr_urgent);
 
        zynq_slcr_lock();
+
+       return 0;
 }
 
 void reset_cpu(ulong addr)