On 10/26/2010 10:25 AM, Heiko Schocher wrote:
Hello Stefano,
Stefano Babic wrote:
On 10/26/2010 10:05 AM, Shawn Guo wrote:
Hi Stefano,
On Tue, Oct 26, 2010 at 3:59 PM, Stefano Babic sbabic@denx.de wrote:
On 10/25/2010 05:14 PM, Shawn Guo wrote:
+#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_1 +#define CONFIG_SYS_INIT_SP_ADDR (IRAM_BASE_ADDR + 0x1000)
What is the meaning of the offset at 0x1000 ? Is there something at IRAM_BASE_ADDR ?
I thought CONFIG_SYS_INIT_SP_ADDR is assigned to stack pointer (sp) which decrease the address. Is it not the case?
Yes, my doubt is due to the fact that we do not set the SP at the end of the IRAM and we set it to an arbitrary address in between.
We should set the CONFIG_SYS_INIT_SP_ADDR @ (IRAM_BASE_ADDR + IRAM_BASE_SIZE
- CONFIG_SYS_GBL_DATA_SIZE)
Agree, this is what I set for the vision2 board. We should be consistent and do the same for the mx51evk.
Don;t know if IRAM_BASE_SIZE exists ...
we must define it. I set it in the board configuration file, but it is wrong. The value should be moved into register definition file for the SoC (imx-regs.h)
Best regards, Stefano Babic