Hello Thomas,
Quick suggestion since I dont know all the details: Can you increase the size of the space mapped to say 16 MB (some larget value than 256 KB) and check if the bus error repeats?
#define NPP_BOARD_INTERNAL_SRAM_SIZE (16 *1024 * 1024)
Thanks Manish Lachwani
Thomas Petazzoni wrote:
Hello,
Manish Lachwani a écrit :
What are these values: NPP_BOARD_INTERNAL_SRAM_BASE, NPP_BOARD_INTERNAL_SRAM_END and NPP_BOARD_INTERNAL_SRAM_BASE.
#define NPP_BOARD_INTERNAL_SRAM_BASE 0xfe000000UL #define NPP_BOARD_INTERNAL_SRAM_SIZE (256*1024) #define NPP_BOARD_INTERNAL_SRAM_END \ (NPP_BOARD_INTERNAL_SRAM_BASE + NPP_BOARD_INTERNAL_SRAM_SIZE)
Do you think it's a problem related to the SRAM ?
Also, what is ENTRYLO() defined as?
static inline unsigned long ENTRYLO(unsigned long paddr) { return ((paddr & PAGE_MASK) | (_PAGE_PRESENT | __READABLE | __WRITEABLE | _PAGE_GLOBAL | _CACHE_UNCACHED)) >> 6; }
This code is taken from the jaguar_atx setup.c file.
Thanks,
Thomas