On 07/31/2012 08:46 AM, R, Sricharan wrote: > Correct. > DRAM_ADDR_SPACE_END should be 0xFFFFFFFF for OMAP5.
OK, I will just drop this. > > Thanks, > Sricharan > > On Tue, Jul 31, 2012 at 9:12 PM, Tom Rini <tr...@ti.com> wrote: >> On 07/31/2012 08:27 AM, R, Sricharan wrote: >>> Hi Tom, >>> >>> On Tue, Jul 31, 2012 at 8:43 PM, Tom Rini <tr...@ti.com> wrote: >>>> On 07/31/2012 01:33 AM, R, Sricharan wrote: >>>>> Hi Tom, >>>>> [snip..] >>>>>> diff --git a/arch/arm/include/asm/arch-omap5/omap.h >>>>>> b/arch/arm/include/asm/arch-omap5/omap.h >>>>>> index 7f05cb5..c697e0b 100644 >>>>>> --- a/arch/arm/include/asm/arch-omap5/omap.h >>>>>> +++ b/arch/arm/include/asm/arch-omap5/omap.h >>>>>> @@ -39,11 +39,6 @@ >>>>>> #define OMAP54XX_L4_WKUP_BASE 0x4Ae00000 >>>>>> #define OMAP54XX_L4_PER_BASE 0x48000000 >>>>>> >>>>>> -#define OMAP54XX_DRAM_ADDR_SPACE_START 0x80000000 >>>>>> -#define OMAP54XX_DRAM_ADDR_SPACE_END 0xFFFFFFFF >>>>>> -#define DRAM_ADDR_SPACE_START OMAP54XX_DRAM_ADDR_SPACE_START >>>>>> -#define DRAM_ADDR_SPACE_END OMAP54XX_DRAM_ADDR_SPACE_END >>>>>> - >>>>> This is a problem for OMAP5, which has a trap section at 0xFF000000 >>>>> with in the sdram boundary. OMAP5 evm board has 2GB of memory from >>>>> 0x80000000 - 0xFFFFFFFF. Size of the trap section should not be >>>>> included in the >>>>> total sdram size. >>>> >>>> But it's not sdram size. What happens when you're executing at the trap >>>> section, or rather, where are you executing code from? >>> >>> When we execute at trap section address, the system aborts. >>> EMIF returns a exception. This is to catch the unmapped tiler >>> entries. >>> So total size of sdram size calculated should subtract the size >>> of trap section if that falls with in the sdram boundary, >>> as in case of omap5. This is taken care in omap_sdram_size >>> function. But with this change the trap section will go un-noticed. >> >> So you're saying the problem is that 0xFF... needs to be included in >> DRAM_ADDR_SPACE on omap5? >> >> -- >> Tom _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
