I'm running this on a Coldfire (MCF5484) processor for Linux 2.6.25. I've got 64MB of Intel P33 flash. I have two chips that have their chip selects tied together to give me 32 bit read/write.
flinfo shows:
Bank # 1: CFI conformant FLASH (32 x 16) Size: 64 MB in 259 SectorsEC0000 Intel Extended command set, Manufacturer ID: 0x89, Device ID: 0x22 Erase timeout: 4096 ms, write timeout: 1 ms Buffer write timeout: 2 ms, buffer size: 64 bytes addr_first: 0xfc002000 Sector Start Addresses:0 FC000000 RO FC010000 RO FC020000 RO FC030000 RO FC040000 RO FC080000 RO FC0C0000 RO FC100000 RO FC140000 RO FC180000 RO FC1C0000 RO FC200000 FC240000 FC280000 FC2C0000 FC300000 FC340000 FC380000 FC3C0000 FC400000 etc....
Got CS0 set as:
#define CFG_CS0_BASE 0xFC000000 #define CFG_CS0_MASK (((CFG_BOOTSZ << 20) - 1) & 0xFFFF0001) #define CFG_CS0_CTRL 0x00002500
This chips first four sectors are 32K (the rest are 128K). The CFG_ENV_SECT_SIZE is set to 0x2000. However if I change it to 32K I get errors. On top of that the sector boundaries look fine in flinfo. I put in some debug to see more about the error and I get:
-> save Saving Environment to Flash... addr_first: 0xfc002000 info->start[0]: 0xfc000000 b_end: 0xffffffff Error: start address not on sector boundary
Not sure what to do with this. Any help appreciated.