Appendix F. Sample BDI-2000 Configuration File / Embedded Linux Primer: A Practical, Real-World Approach / Библиотека (книги, учебники и журналы) / В помощь Веб-Мастеру

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Christopher Hallinan i

Книги автора: Embedded Linux Primer: A Practical, Real-World Approach

Книга: Embedded Linux Primer: A Practical, Real-World Approach

Appendix F. Sample BDI-2000 Configuration File

; bdiGDB configuration file for the UEI PPC 5200 Board ; Revision 1.0 ; Revision 1.1 (Added serial port setup) ; ----------------------------------------------------------- ; 4 MB Flash (Am29DL323) ; 128 MB Micron DDR DRAM [INIT] ; init core register WREG MSR 0x00003002 ;MSR : FP,ME,RI WM32 0x80000000 0x00008000 ;MBAR : internal registers at 0x80000000 ; Default after RESET, MBAR sits at 0x80000000 ; because it's POR value is 0x0000_8000 (!) WSPR 311 0x80000000 ; MBAR : save internal register offset ; SPR311 is the MBAR in G2_LE WSPR 279 0x80000000 ;SPRG7: save internal memory offsetReg: 279 ; Init CDM (Clock Distribution Module) ; Hardware Reset config { ; ppc_pll_cfg[0..4] = 01000b : XLB:Core -> 1:3 : Core:f(VCO) -> 1:2 : XLB:f(VCO) -> 1:6 ; xlb_clk_sel = 0 -> XLB_CLK=f(sys) / 4 = 132 MHz ; sys_pll_cfg_1 = 0 -> NOP ; sys_pll_cfg_0 = 0 -> f(sys) = 16x SYS_XTAL_IN = 528 MHz ; } ; CDM Configuration Register WM32 0x8000020c 0x01000101 ; enable DDR Mode ; ipb_clk_sel = 1 -> XLB_CLK / 2 (ipb_clk = 66 MHz) ; pci_clk_sel = 01 -> IPB_CLK/2 ; CS0 Flash WM32 0x80000004 0x0000ff00 ;CS0 start = 0xff000000 - Flash memory is on CS0 WM32 0x80000008 0x0000ffff ;CS0 stop = 0xffffffff ; IPBI Register and Wait State Enable WM32 0x80000054 0x00050001 ;CSE: enable CS0, disable CSBOOT, ;Wait state enable ; CS2 also enabled WM32 0x80000300 0x00045d30 ;BOOT ctrl ; bits 0-7: WaitP (try 0xff) ; bits 8-15: WaitX (try 0xff) ; bit 16: Multiplex or non-mux'ed (0x0 = non-muxed) ; bit 17: reserved (Reset value = 0x1, keep it) ; bit 18: Ack Active (0x0) ; bit 19: CE (Enable) 0x1 ; bits 20-21: Address Size (0x11 = 25/6 bits) ; bits 22:23: Data size field (0x01 = 16-bits) ; bits 24:25: Bank bits (0x00) ; bits 26-27: WaitType (0x11) ; bits 28: Write Swap (0x0 = no swap) ; bits 29: Read Swap (0x0 = no swap) ; bit 30: Write Only (0x0 = read enable) ; bit 31: Read Only (0x0 = write enable) ; CS2 Logic Registers WM32 0x80000014 0x0000e00e WM32 0x80000018 0x0000efff ; LEDS: ; LED1 - bits 0-7 ; LED2 - bits 8-15 ; LED3 - bits 16-23 ; LED4 - bits 24-31 ; off = 0x01 ; on = 0x02 ; mm 0xe00e2030 0x02020202 1 (all on) ; mm 0xe00e2030 0x01020102 1 (2 on, 2 off) WM32 0x80000308 0x00045b30 ; CS2 Configuration Register ; bits 0-7: WaitP (try 0xff) ; bits 8-15: WaitX (try 0xff) ; bit 16: Multiplex or non-mux'ed (0x0 = non-muxed) ; bit 17: reserved (Reset value = 0x1, keep it) ; bit 18: Ack Active (0x0) ; bit 19: CE (Enable) 0x1 ; bits 20-21: Address Size (0x10 = 24 bits) ; bits 22:23: Data size field (0x11 = 32-bits) ; bits 24:25: Bank bits (0x00) ; bits 26-27: WaitType (0x11) ; bits 28: Write Swap (0x0 = no swap) ; bits 29: Read Swap (0x0 = no swap) ; bit 30: Write Only (0x0 = read enable) ; bit 31: Read Only (0x0 = write enable) WM32 0x80000318 0x01000000 ; Master LPC Enable ; init SDRAM controller ; For the UEI PPC 5200 Board, ; Micron 46V32M16-75E (8 MEG x 16 x 4 banks) ; 64 MB per Chip, for a total of 128 MB ; arranged as a single "space" (i.e 1 CS) ; with the following configuration: ; 8 Mb x 16 x 4 banks ; Refresh count 8K ; Row addressing: 8K (A0..12) 13 bits ; Column addressing: 1K (A0..9) 10 bits ; Bank Addressing: 4 (BA0..1) 2 bits ; Key Timing Parameters: (-75E) ; Clockrate (CL=2) 133 MHz ; DO Window 2.5 ns ; Access Window: +/- 75 ns ; DQS - DQ Skew: +0.5 ns ; t(REFI): 7.8 us MAX ; Initialization Requirements (General Notes) ; The memory Mode/Extended Mode registers must be ; initialized during the system boot sequence. But before ; writing to the controller Mode register, the mode_en and ; cke bits in the Control register must be set to 1. After ; memory initialization is complete, the Control register ; mode_en bit should be cleared to prevent subsequent access ; to the controller Mode register. ; SDRAM init sequence ; 1) Setup and enable chip selects ; 2) Setup config registers ; 3) Setup TAP Delay ; Setup and enable SDRAM CS WM32 0x80000034 0x0000001a ;SDRAM CS0, 128MB @ 0x00000000 WM32 0x80000038 0x08000000 ;SDRAM CS1, disabled @ 0x08000000 WM32 0x80000108 0x73722930 ;SDRAM Config 1 Samsung ; Assume CL=2 ; bits 0-3: srd2rwp: in clocks (0x6) ; bits 507: swt2rwp: in clocks -> Data sheet suggests ; 0x3 for DDR (0x3) ; bits 8-11: rd_latency -> for DDR 0x7 ; bits 13-15: act2rw -> 0x2 ; bit 16: reserved ; bits 17-19: pre2act -> 0x02 ; bits 20-23: ref2act -> 0x09 ; bits 25-27: wr_latency -> for DDR 0x03 ; bits 28-31: Reserved WM32 0x8000010c 0x46770000 ;SDRAM Config 2 Samsung ; bits 0-3: brd2rp -> for DDR 0x4 ; bits 4-7: bwt2rwp -> for DDR 0x6 ; bits 8-11: brd2wt -> 0x6 ; bits 12-15: burst_length -> 0x07 (bl - 1) ; bits 16-13: Reserved ; Setup initial Tap delay WM32 0x80000204 0x18000000 ; Start in the end of the range (24 = 0x18) Samsung WM32 0x80000104 0xf10f0f00 ;SDRAM Control (was 0xd14f0000) ; bit 0: mode_en (1=write) ; bit 1: cke (MEM_CLK_EN) ; bit 2: ddr (DDR mode on) ; bit 3: ref_en (Refresh enable) ; bits 4-6: Reserved ; bit 7: hi_addr (XLA[4:7] as row/col ; must be set to '1' 'cuz we need 13 RA bits ; for the Micron chip above ; bit 8: reserved ; bit 9: drive_rule - 0x0 ; bit 10-15: ref_interval, see UM 0x0f ; bits 16-19: reserved ; bits 20-23: dgs_oe[3:0] (not sure) ; but I think this is req'd for DDR 0xf ; bits 24-28: Resv'd ; bit 29: 1 = soft refresh ; bit 30 1 = soft_precharge ; bit 31: reserved WM32 0x80000104 0xf10f0f02 ;SDRAM Control: precharge all WM32 0x80000104 0xf10f0f04 ;SDRAM Control: refresh WM32 0x80000104 0xf10f0f04 ;SDRAM Control: refresh WM32 0x80000100 0x018d0000 ; SDRAM Mode Samsung ; bits 0-1: MEM_MBA - selects std or extended MODE reg 0x0 ; bits 2-13: MEM_MA (see DDR DRAM Data sheet) ; bits 2-7: Operating Mode -> 0x0 = normal ; bits 8-10: CAS Latency (CL) -> Set to CL=2 for DDR (0x2) ; bit 11: Burst Type: Sequential for PMC5200 -> 0x0 ; bits 12-14: Set to 8 for MPC5200 -> 0x3 ; bit 15: cmd = 1 for MODE REG WRITE WM32 0x80000104 0x710f0f00 ;SDRAM Control: Lock Mode Register (was 0x514f0000) ; *********** Initialize the serial port *********** ; Pin Configuration WM32 0x80000b00 0x00008004 ; UART1 ; Reset PSC WM8 0x80002008 0X10 ; Reset - Select MR1 WM16 0x80002004 0 ; Clock Select Register - 0 enables both Rx & Tx Clocks WM32 0x80002040 0 ; SICR - UART Mode WM8 0x80002000 0x13 ; Write MR1 (default after reset) ; 8-bit, no parity WM8 0x80002000 0x07 ; Write MR2 (after MR1) (one stop bit) WM8 0x80002018 0x0 ; Counter/Timer Upper Reg (115.2KB) WM8 0x8000201c 0x12 ; Counter/Timer Lower Reg (divider = 18) ; Reset and enable serial port Rx/Tx WM8 0x80002008 0x20 WM8 0x80002008 0x30 WM8 0x80002008 0x05 ; define maximal transfer size TSZ4 0x80000000 0x80003FFF ;internal registers ; define the valid memory map MMAP 0x00000000 0x07FFFFFF ;Memory range for SDRAM MMAP 0xFF000000 0xFFFFFFFF ;ROM space MMAP 0xE00E0000 0xE00EFFFF ; PowerPC Logic MMAP 0x80000000 0x8fffffff ; Default MBAR MMAP 0xC0000000 0XCFFFFFFF ; Linux Kernal [TARGET] CPUTYPE 5200 ;the CPU type JTAGCLOCK 0 ;use 16 MHz JTAG clock WORKSPACE 0x80008000 ;workspace for fast download WAKEUP 1000 ;give reset time to complete STARTUP RESET MEMDELAY 2000 ;additional memory access delay BOOTADDR 0xfff00100 REGLIST ALL BREAKMODE SOFT ; or HARD POWERUP 1000 WAKEUP 500 MMU XLAT PTBASE 0x000000f0 [HOST] IP 192.168.1.9 FORMAT ELF LOAD MANUAL ;load code MANUAL or AUTO after reset PROMPT uei> [FLASH] CHIPTYPE AM29BX16 ;Flash type (AM29F | AM29BX8 | AM29BX16 | I28BX8 | I28BX16) CHIPSIZE 0x00400000 ;The size of one flash chip in bytes BUSWIDTH 16 ;The width of the flash memory bus in bits (8 | 16 | 32) WORKSPACE 0x80008000 ;workspace in internal SRAM FILE u-boot.bin FORMAT BIN 0xFFF00000 ERASE 0xFFF00000 ;erase a sector of flash ERASE 0xFFF10000 ;erase a sector of flash ERASE 0xFFF20000 ;erase a sector of flash ERASE 0xFFF30000 ;erase a sector of flash ERASE 0xFFF40000 ;erase a sector of flash [REGS] FILE $reg5200.def

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