| Freescale MPC837xEMDS Board |
| ----------------------------------------- |
| 1. Board Switches and Jumpers |
| 1.0 There are four Dual-In-Line Packages(DIP) Switches on MPC837xEMDS board |
| For some reason, the HW designers describe the switch settings |
| in terms of 0 and 1, and then map that to physical switches where |
| the label "On" refers to logic 0 and "Off" is logic 1. |
| |
| Switch bits are numbered 1 through, like, 4 6 8 or 10, but the |
| bits may contribute to signals that are numbered based at 0, |
| and some of those signals may be high-bit-number-0 too. Heed |
| well the names and labels and do not get confused. |
| |
| "Off" == 1 |
| "On" == 0 |
| |
| SW4[8] is the bit labled 8 on Switch 4. |
| SW2[1:6] refers to bits labeled 1 through 6 in order on switch 2. |
| SW2[1:8]= 0000_0001 refers to bits labeled 1 through 7 is set as "On" |
| and bits labeled 8 is set as "Off". |
| |
| 1.1 For the MPC837xEMDS Processor Board |
| |
| First, make sure the board default setting is consistent with the |
| document shipped with your board. Then apply the following setting: |
| SW3[1-8]= 0011_0000 (BOOTSEQ, ROMLOC setting) |
| SW4[1-8]= 0000_0110 (core PLL setting) |
| SW5[1-8]= 1001_1000 (system PLL, boot up from low end of flash) |
| SW6[1-8]= 0000_1000 (HRCW is read from NOR FLASH) |
| SW7[1-8]= 0110_1101 (TSEC1/2 interface setting - RGMII) |
| J3 2-3, TSEC1 LVDD1 with 2.5V |
| J6 2-3, TSEC2 LVDD2 with 2.5V |
| J9 2-3, CLKIN from osc on board |
| J10 removed, CS0 connect to NOR flash; when mounted, CS0 connect to NAND |
| J11 removed, Hardware Reset Configuration Word load from FLASH(NOR or NAND) |
| mounted, HRCW load from BCSR. |
| |
| on board Oscillator: 66M |
| |
| 2. Memory Map |
| |
| 2.1. The memory map should look pretty much like this: |
| |
| 0x0000_0000 0x7fff_ffff DDR 2G |
| 0x8000_0000 0x8fff_ffff PCI MEM prefetch 256M |
| 0x9000_0000 0x9fff_ffff PCI MEM non-prefetch 256M |
| 0xc000_0000 0xdfff_ffff Empty 512M |
| 0xe000_0000 0xe00f_ffff Int Mem Reg Space 1M |
| 0xe010_0000 0xe02f_ffff Empty 2M |
| 0xe030_0000 0xe03f_ffff PCI IO 1M |
| 0xe040_0000 0xe05f_ffff Empty 2M |
| 0xe060_0000 0xe060_7fff NAND Flash 32K |
| 0xf400_0000 0xf7ff_ffff Empty 64M |
| 0xf800_0000 0xf800_7fff BCSR on CS1 32K |
| 0xfe00_0000 0xffff_ffff NOR Flash on CS0 32M |
| |
| 3. Definitions |
| |
| 3.1 Explanation of NEW definitions in: |
| |
| include/configs/MPC837XEMDS.h |
| |
| CONFIG_MPC83XX MPC83xx family for both MPC837x and MPC8360 |
| CONFIG_MPC837X MPC837x specific |
| CONFIG_MPC837XEMDS MPC837XEMDS board specific |
| |
| 4. Compilation |
| |
| Assuming you're using BASH shell: |
| |
| export CROSS_COMPILE=your-cross-compile-prefix |
| cd u-boot |
| make distclean |
| make MPC837XEMDS_config |
| make |
| |
| 5. Downloading and Flashing Images |
| |
| 5.0 Download over serial line using Kermit: |
| |
| loadb |
| [Drop to kermit: |
| ^\c |
| send <u-boot-bin-image> |
| c |
| ] |
| |
| |
| Or via tftp: |
| |
| tftp 40000 u-boot.bin |
| |
| 5.1 Reflash U-boot Image using U-boot |
| |
| tftp 40000 u-boot.bin |
| protect off fe000000 fe1fffff |
| erase fe000000 fe1fffff |
| |
| cp.b 40000 fe000000 xxxx |
| |
| You have to supply the correct byte count with 'xxxx' from the TFTP result log. |
| |
| 6. Notes |
| 1) The console baudrate for MPC837XEMDS is 115200bps. |
