[U-Boot] kirkwood: CONFIG_SYS_INIT_SP_ADDR wrong?

[Daniel Hobi <daniel.hobi@schmid-telecom.ch>]

Hi Prafulla,

In commit 0b20ed76 (Kirkwood: Changes specific to ARM relocation
support), you set CONFIG_SYS_INIT_SP_ADDR to 0xC8012000 which is
supposed to lie within the internal Security SRAM.

However, the Kirkwood Functional Specification (chapter 2.13 Default
Address Map) and arch/arm/include/asm/arch-kirkwood/cpu.h suggest that
the Security SRAM is mapped to 0xC8010000. Given the size of 2 KiB, the
upper end would be 0xC8010800.

So I am wondering whether the value 0xC8012000 works at all.

In addition, "CONFIG_SYS_INIT_SP_ADDR should point to RAM with enough
space for global data above and enough stack space below", as Reinhard
Meyer points out in:

http://article.gmane.org/gmane.comp.boot-loaders.u-boot/87490

Since you use quite a large print buffer (CONFIG_SYS_PBSIZE > 1 KiB), I
assume something like 0xC8010700 might work.

@Heiko: include/configs/km_arm.h may have the same problem.

Best regards,
Daniel