128Mb of DDR is selected from UBL and it depends on whether the RAM is selected with 16bit bus width or 32-bit bus width
Regard's Rohan Tabish --- On Mon, 30/8/10, hitesh <[email protected]> wrote: From: hitesh <[email protected]> Subject: Problem with 256MB DDR on DM365 To: [email protected] Date: Monday, 30 August, 2010, 18:46 Hi ALL We are facing one issue related to the memory allocation on DM365 based board. We have 256MB DDR on our board. But when we allocate more than 128 MB of memory to the kernel (in bootargs), sometimes kernel gives paging request errors while running application or sometimes it is not able to even boot (i.e. kernel panic). We have done changes in the U-boot to configure the DDR of 256MB. We have modified the following U-boot source file: File: include/configs/davinci_dm365_evm.h Change: (As below) #define CFG_MALLOC_LEN (0x40000 + 128*1024) /* malloc () len */ #define CFG_GBL_DATA_SIZE (128) /* reserved for initial data */ #define CFG_MEMTEST_START (0x82000000) /* memtest start address */ #define CFG_MEMTEST_END (0x90000000) /* 16MB RAM test */ #define CONFIG_NR_DRAM_BANKS (1) /* we have 1 bank of DRAM */ #define CONFIG_STACKSIZE (256*1024) /* regular stack */ #define PHYS_SDRAM_1 0x80000000 /* DDR Start */ // ORIGINAL: #define PHYS_SDRAM_1_SIZE 0x8000000 /* DDR size 128MB */ #define PHYS_SDRAM_1_SIZE 0x10000000 /* DDR size 256MB */ Details of our DM365 board is as follows: Silicon Version of DM365: DM365ZCE30 DVSDK Version: dvsdk_2_10_01_18 Linux Version: linux-2.6.18_pro500 PSP Version: PSP_02_10_00_14 DDR Size: 256MB. Any body help me what are the changes are still left? Is there any missing in setting? What are the setting if we go from 128MB ddr to 256MB size of DDR? Thanks Hitesh Patel --- -----Inline Attachment Follows----- _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
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