Kumar Gala wrote:
Is the physical memory map the same on the ITX as it is on the 8349EMDS?
Beats me.
The EMDS has this for the BATs:
#define CFG_PCI1_MEM_BASE 0x80000000 #define CFG_PCI1_MEM_PHYS CFG_PCI1_MEM_BASE #define CFG_PCI1_MEM_SIZE 0x10000000 /* 256M */ #define CFG_PCI1_MMIO_BASE 0x90000000 #define CFG_PCI1_MMIO_PHYS CFG_PCI1_MMIO_BASE #define CFG_PCI1_MMIO_SIZE 0x10000000 /* 256M */ #define CFG_PCI1_IO_BASE 0x00000000 #define CFG_PCI1_IO_PHYS 0xE2000000 #define CFG_PCI1_IO_SIZE 0x00100000 /* 1M */
#define CFG_PCI2_MEM_BASE 0xA0000000 #define CFG_PCI2_MEM_PHYS CFG_PCI2_MEM_BASE #define CFG_PCI2_MEM_SIZE 0x10000000 /* 256M */ #define CFG_PCI2_MMIO_BASE 0xB0000000 #define CFG_PCI2_MMIO_PHYS CFG_PCI2_MMIO_BASE #define CFG_PCI2_MMIO_SIZE 0x10000000 /* 256M */ #define CFG_PCI2_IO_BASE 0x00000000 #define CFG_PCI2_IO_PHYS 0xE2100000 #define CFG_PCI2_IO_SIZE 0x00100000 /* 1M */
Question #1: Why is CFG_PCI1_MEM_PHYS the same as CFG_PCI1_MEM_BASE, but CFG_PCI1_IO_PHYS is not the same as CFG_PCI1_IO_BASE?
I'm porting the ITX support from an older U-Boot (1.1.3) that was written by another group. This is what they have:
#define CFG_PCI1_MEM_BASE 0x80000000 #define CFG_PCI1_MEM_PHYS CFG_PCI1_MEM_BASE #define CFG_PCI1_MEM_SIZE 0x20000000 /* 512M */ #define CFG_PCI1_IO_BASE 0x00000000 #define CFG_PCI1_IO_PHYS 0xe2000000 #define CFG_PCI1_IO_SIZE 0x1000000 /* 16M */
#define CFG_PCI2_MEM_BASE 0xA0000000 #define CFG_PCI2_MEM_PHYS CFG_PCI2_MEM_BASE #define CFG_PCI2_MEM_SIZE 0x20000000 /* 512M */ #define CFG_PCI2_IO_BASE 0x00000000 #define CFG_PCI2_IO_PHYS 0xe3000000 #define CFG_PCI2_IO_SIZE 0x1000000 /* 16M */
As you can see, some numbers are different, and some are missing. I had to guess what value to use for CFG_PCI1_MMIO_BASE, etc.
I don't know why the PCI sizes are larger on the ITX than on the EMDS. I have no documentation that tells me what these numbers should be.