| # Porting U-Boot onto RPXlite board |
| # Written by Yoo. Jonghoon |
| # E-Mail : yooth@ipone.co.kr |
| # IP ONE Inc. |
| |
| # Since 2001. 1. 29 |
| |
| # Shell : bash |
| # Cross-compile tools : Montavista Hardhat |
| # Debugging tools : Windriver VisionProbe (PowerPC BDM) |
| # ppcboot ver. : ppcboot-0.8.1 |
| |
| ############################################################### |
| # 1. Hardware setting |
| ############################################################### |
| |
| 1.1. Board, BDM settings |
| Install board, BDM, connect each other |
| |
| 1.2. Save Register value |
| Boot with board-on monitor program and save the |
| register values with BDM. |
| |
| 1.3. Configure flash programmer |
| Check flash memory area in the memory map. |
| 0xFFC00000 - 0xFFFFFFFF |
| |
| Boot monitor program is at |
| 0xFFF00000 |
| |
| You can program on-board flash memory with VisionClick |
| flash programmer. Set the target flash device as: |
| |
| 29DL800B |
| |
| (?) The flash memory device in the board *is* 29LV800B, |
| but I cannot program it with '29LV800B' option. |
| (in VisionClick flash programming tools) |
| I don't know why... |
| |
| 1.4. Save boot monitor program *IMPORTANT* |
| Upload boot monitor program from board to file. |
| boot monitor program starts at 0xFFF00000 |
| |
| 1.5. Test flash memory programming |
| Try to erase boot program in the flash memory, |
| and re-write them. |
| *WARNING* YOU MUST SAVE BOOT PROGRAM TO FILE |
| BEFORE ERASING FLASH |
| |
| ############################################################### |
| # 2. U-Boot setting |
| ############################################################### |
| |
| 2.1. Download U-Boot tarball at |
| ftp://ftp.denx.de |
| (The latest version is ppcboot-0.8.1.tar.bz2) |
| |
| To extract the archive use the following syntax : |
| > bzip2 -cd ppcboot-0.8.1.tar.bz2 | tar xf - |
| |
| 2.2. Add the following lines in '.profile' |
| export PATH=$PATH:/opt/hardhat/devkit/ppc/8xx/bin |
| |
| 2.3. Make board specific config, for example: |
| > cd ppcboot-0.8.1 |
| > make TQM860L_config |
| |
| Now we can build ppcboot bin files. |
| After make all, you must see these files in your |
| ppcboot root directory. |
| |
| ppcboot |
| ppcboot.bin |
| ppcboot.srec |
| ppcboot.map |
| |
| 2.4. Make your own board directory into the |
| ppcboot-0.8.1/board |
| and make your board-specific files here. |
| |
| For exmanple, tqm8xx files are composed of |
| .depend : Nothing |
| Makefile : To make config file |
| config.mk : Sets base address |
| flash.c : Flash memory control files |
| ppcboot.lds : linker(ld) script? (I don't know this yet) |
| tqm8xx.c : DRAM control and board check routines |
| |
| And, add your board config lines in the |
| ppcboot-0.8.1/Makefile |
| |
| Finally, add config_(your board).h file in the |
| ppcboot-0.8.1/include/ |
| |
| I've made board/rpxlite directory, and just copied |
| tqm8xx settings for now. |
| |
| Rebuild ppcboot for rpxlite board: |
| > make rpxlite_config |
| > make |
| |
| ############################################################### |
| # 3. U-Boot porting |
| ############################################################### |
| |
| 3.1. My RPXlite files are based on tqm8xx board files. |
| > cd board |
| > cp -r tqm8xx RPXLITE |
| > cd RPXLITE |
| > mv tqm8xx.c RPXLITE.c |
| > cd ../../include |
| > cp config_tqm8xx.h config_RPXLITE.h |
| |
| 3.2. Modified files are: |
| board/RPXLITE/RPXLITE.c /* DRAM-related routines */ |
| board/RPXLITE/flash.c /* flash-related routines */ |
| board/RPXLITE/config.mk /* set text base address */ |
| arch/powerpc/cpu/mpc8xx/serial.c /* board specific register setting */ |
| include/config_RPXLITE.h /* board specific registers */ |
| |
| See 'reg_config.txt' for register values in detail. |
| |
| ############################################################### |
| # 4. Running Linux |
| ############################################################### |
| |
| |
| ############################################################### |
| # Misc Information |
| ############################################################### |
| |
| mem_config.txt: |
| =============== |
| |
| Flash memory device : AM29LV800BB (1Mx8Bit) x 4 device |
| manufacturer id : 01 (AMD) |
| device id : 5B (AM29LV800B) |
| size : 4Mbyte |
| sector # : 19 |
| |
| Sector information : |
| |
| number start addr. size |
| 00 FFC0_0000 64 |
| 01 FFC1_0000 32 |
| 02 FFC1_8000 32 |
| 03 FFC2_0000 128 |
| 04 FFC4_0000 256 |
| 05 FFC8_0000 256 |
| 06 FFCC_0000 256 |
| 07 FFD0_0000 256 |
| 08 FFD4_0000 256 |
| 09 FFD8_0000 256 |
| 10 FFDC_0000 256 |
| 11 FFE0_0000 256 |
| 12 FFE4_0000 256 |
| 13 FFE8_0000 256 |
| 14 FFEC_0000 256 |
| 15 FFF0_0000 256 |
| 16 FFF4_0000 256 |
| 17 FFF8_0000 256 |
| 18 FFFC_0000 256 |
| |
| |
| reg_config.txt: |
| =============== |
| |
| |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| /* SIU (System Interface Unit) */ |
| /* */ |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| |
| |
| /*### IMMR */ |
| /*### Internal Memory Map Register */ |
| /*### Chap. 11.4.1 */ |
| |
| ISB = 0xFA20 /* Set the Immap base = 0xFA20 0000 */ |
| PARTNUM = 0x21 |
| MASKNUM = 0x00 |
| |
| => 0xFA20 2100 |
| |
| --------------------------------------------------------------------- |
| |
| /*### SIUMCR */ |
| /*### SIU Module Configuration Register */ |
| /*### Chap. 11.4.2 */ |
| /*### Offset : 0x0000 0000 */ |
| |
| EARB = 0 |
| EARP = 0 |
| DSHW = 0 |
| DBGC = 0 |
| DBPC = 0 |
| FRC = 0 |
| DLK = 0 |
| OPAR = 0 |
| PNCS = 0 |
| DPC = 0 |
| MPRE = 0 |
| MLRC = 10 /* ~KR/~RETRY/~IRQ4/SPKROUT functions as ~KR/~TRTRY */ |
| AEME = 0 |
| SEME = 0 |
| BSC = 0 |
| GB5E = 0 |
| B2DD = 0 |
| B3DD = 0 |
| |
| => 0x0000 0800 |
| |
| --------------------------------------------------------------------- |
| |
| /*### SYPCR */ |
| /*### System Protection Control Register */ |
| /*### Chap. 11.4.3 */ |
| /*### Offset : 0x0000 0004 */ |
| |
| SWTC = 0xFFFF /* SW watchdog timer count = 0xFFFF */ |
| BMT = 0x06 /* BUS monitoring timing */ |
| BME = 1 /* BUS monitor enable */ |
| SWF = 1 |
| SWE = 0 /* SW watchdog disable */ |
| SWRI = 0 |
| SWP = 1 |
| |
| => 0xFFFF 0689 |
| |
| --------------------------------------------------------------------- |
| |
| /*### TESR */ |
| /*### Transfer Error Status Register */ |
| /*### Chap. 11.4.4 */ |
| /*### Offset : 0x0000 0020 */ |
| |
| IEXT = 0 |
| ITMT = 0 |
| IPB = 0000 |
| DEXT = 0 |
| DTMT = 0 |
| DPB = 0000 |
| |
| => 0x0000 0000 |
| |
| --------------------------------------------------------------------- |
| |
| /*### SIPEND */ |
| /*### SIU Interrupt Pending Register */ |
| /*### Chap. 11.5.4.1 */ |
| /*### Offset : 0x0000 0010 */ |
| |
| IRQ0~IRQ7 = 0 |
| LVL0~LVL7 = 0 |
| |
| => 0x0000 0000 |
| |
| --------------------------------------------------------------------- |
| |
| /*### SIMASK */ |
| /*### SIU Interrupt Mask Register */ |
| /*### Chap. 11.5.4.2 */ |
| /*### Offset : 0x0000 0014 */ |
| |
| IRM0~IRM7 = 0 /* Mask all interrupts */ |
| LVL0~LVL7 = 0 |
| |
| => 0x0000 0000 |
| |
| --------------------------------------------------------------------- |
| |
| /*### SIEL */ |
| /*### SIU Interrupt Edge/Level Register */ |
| /*### Chap. 11.5.4.3 */ |
| /*### Offset : 0x0000 0018 */ |
| |
| ED0~ED7 = 0 /* Low level triggered */ |
| WMn0~WMn7 = 0 /* Not allowed to exit from low-power mode */ |
| |
| => 0x0000 0000 |
| |
| --------------------------------------------------------------------- |
| |
| /*### SIVEC */ |
| /*### SIU Interrupt Vector Register */ |
| /*### Chap. 11.5.4.4 */ |
| /*### Offset : 0x0000 001C */ |
| |
| INTC = 3C /* The lowest interrupt is pending..(?) */ |
| |
| => 0x3C00 0000 |
| |
| --------------------------------------------------------------------- |
| |
| /*### SWSR */ |
| /*### Software Service Register */ |
| /*### Chap. 11.7.1 */ |
| /*### Offset : 0x0000 001E */ |
| |
| SEQ = 0 |
| |
| => 0x0000 |
| |
| --------------------------------------------------------------------- |
| |
| /*### SDCR */ |
| /*### SDMA Configuration Register */ |
| /*### Chap. 20.2.1 */ |
| /*### Offset : 0x0000 0032 */ |
| |
| FRZ = 0 |
| RAID = 01 /* Priority level 5 (BR5) (normal operation) */ |
| |
| => 0x0000 0001 |
| |
| |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| /* UPMA (User Programmable Machine A) */ |
| /* */ |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| |
| /*### Chap. 16.6.4.1 */ |
| /*### Offset = 0x0000 017c */ |
| |
| T0 = CFFF CC24 /* Single Read */ |
| T1 = 0FFF CC04 |
| T2 = 0CAF CC04 |
| T3 = 03AF CC08 |
| T4 = 3FBF CC27 /* last */ |
| T5 = FFFF CC25 |
| T6 = FFFF CC25 |
| T7 = FFFF CC25 |
| T8 = CFFF CC24 /* Burst Read */ |
| T9 = 0FFF CC04 |
| T10 = 0CAF CC84 |
| T11 = 03AF CC88 |
| T12 = 3FBF CC27 /* last */ |
| T13 = FFFF CC25 |
| T14 = FFFF CC25 |
| T15 = FFFF CC25 |
| T16 = FFFF CC25 |
| T17 = FFFF CC25 |
| T18 = FFFF CC25 |
| T19 = FFFF CC25 |
| T20 = FFFF CC25 |
| T21 = FFFF CC25 |
| T22 = FFFF CC25 |
| T23 = FFFF CC25 |
| T24 = CFFF CC24 /* Single Write */ |
| T25 = 0FFF CC04 |
| T26 = 0CFF CC04 |
| T27 = 03FF CC00 |
| T28 = 3FFF CC27 /* last */ |
| T29 = FFFF CC25 |
| T30 = FFFF CC25 |
| T31 = FFFF CC25 |
| T32 = CFFF CC24 /* Burst Write */ |
| T33 = 0FFF CC04 |
| T34 = 0CFF CC80 |
| T35 = 03FF CC8C |
| T36 = 0CFF CC00 |
| T37 = 33FF CC27 /* last */ |
| T38 = FFFF CC25 |
| T39 = FFFF CC25 |
| T40 = FFFF CC25 |
| T41 = FFFF CC25 |
| T42 = FFFF CC25 |
| T43 = FFFF CC25 |
| T44 = FFFF CC25 |
| T45 = FFFF CC25 |
| T46 = FFFF CC25 |
| T47 = FFFF CC25 |
| T48 = C0FF CC24 /* Refresh */ |
| T49 = 03FF CC24 |
| T50 = 0FFF CC24 |
| T51 = 0FFF CC24 |
| T52 = 3FFF CC27 /* last */ |
| T53 = FFFF CC25 |
| T54 = FFFF CC25 |
| T55 = FFFF CC25 |
| T56 = FFFF CC25 |
| T57 = FFFF CC25 |
| T58 = FFFF CC25 |
| T59 = FFFF CC25 |
| T60 = FFFF CC25 /* Exception */ |
| T61 = FFFF CC25 |
| T62 = FFFF CC25 |
| T63 = FFFF CC25 |
| |
| |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| /* UPMB */ |
| /* */ |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| --------------------------------------------------------------------- |
| |
| /*### Chap. 16.6.4.1 */ |
| |
| |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| /* MEMC */ |
| /* */ |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| --------------------------------------------------------------------- |
| |
| /*### BR0 & OR0 */ |
| /*### Base Registers & Option Registers */ |
| /*### Chap. 16.4.1 & 16.4.2 */ |
| /*### Offset : BR0(0x0000 0100) & OR0(0x0000 0104) */ |
| /*### Flash memory */ |
| |
| BA = 1111 1110 0000 0000 0 /* Base addr = 0xFE00 0000 */ |
| AT = 000 |
| PS = 00 |
| PARE = 0 |
| WP = 0 |
| MS = 0 /* GPCM */ |
| V = 1 /* Valid */ |
| |
| => 0xFE00 0001 |
| |
| AM = 1111 1110 0000 0000 0 /* 32MBytes */ |
| ATM = 000 |
| CSNT/SAM = 0 |
| ACS/G5LA,G5LS = 00 |
| BIH = 1 /* Burst inhibited */ |
| SCY = 0100 /* cycle length = 4 */ |
| SETA = 0 |
| TRLX = 0 |
| EHTR = 0 |
| |
| => 0xFE00 0140 |
| |
| /*### BR1 & OR1 */ |
| /*### Base Registers & Option Registers */ |
| /*### Chap. 16.4.1 & 16.4.2 */ |
| /*### Offset : BR1(0x0000 0108) & OR1(0x0000 010C) */ |
| /*### SDRAM */ |
| |
| BA = 0000 0000 0000 0000 0 /* Base addr = 0x0000 0000 */ |
| AT = 000 |
| PS = 00 |
| PARE = 0 |
| WP = 0 |
| MS = 1 /* UPMA */ |
| V = 1 /* Valid */ |
| |
| => 0x0000 0081 |
| |
| AM = 1111 1110 0000 0000 /* 32MBytes */ |
| ATM = 000 |
| CSNT/SAM = 1 |
| ACS/G5LA,G5LS = 11 |
| BIH = 0 |
| SCY = 0000 /* cycle length = 0 */ |
| SETA = 0 |
| TRLX = 0 |
| EHTR = 0 |
| |
| => 0xFE00 0E00 |
| |
| /*### BR2 & OR2 */ |
| /*### Base Registers & Option Registers */ |
| /*### Chap. 16.4.1 & 16.4.2 */ |
| /*### Offset : BR2(0x0000 0110) & OR2(0x0000 0114) */ |
| |
| BR2 & OR2 = 0x0000 0000 /* Not used */ |
| |
| /*### BR3 & OR3 */ |
| /*### Base Registers & Option Registers */ |
| /*### Chap. 16.4.1 & 16.4.2 */ |
| /*### Offset : BR3(0x0000 0118) & OR3(0x0000 011C) */ |
| /*### BCSR */ |
| |
| BA = 1111 1010 0100 0000 0 /* Base addr = 0xFA40 0000 */ |
| AT = 000 |
| PS = 00 |
| PARE = 0 |
| WP = 0 |
| MS = 0 /* GPCM */ |
| V = 1 /* Valid */ |
| |
| => 0xFA40 0001 |
| |
| AM = 1111 1111 0111 1111 1 /* (?) */ |
| ATM = 000 |
| CSNT/SAM = 1 |
| ACS/G5LA,G5LS = 00 |
| BIH = 1 /* Burst inhibited */ |
| SCY = 0001 /* cycle length = 1 */ |
| SETA = 0 |
| TRLX = 0 |
| |
| => 0xFF7F 8910 |
| |
| /*### BR4 & OR4 */ |
| /*### Base Registers & Option Registers */ |
| /*### Chap. 16.4.1 & 16.4.2 */ |
| /*### Offset : BR4(0x0000 0120) & OR4(0x0000 0124) */ |
| /*### NVRAM & SRAM */ |
| |
| BA = 1111 1010 0000 0000 0 /* Base addr = 0xFA00 0000 */ |
| AT = 000 |
| PS = 01 |
| PARE = 0 |
| WP = 0 |
| MS = 0 /* GPCM */ |
| V = 1 /* Valid */ |
| |
| => 0xFA00 0401 |
| |
| AM = 1111 1111 1111 1000 0 /* 8MByte */ |
| ATM = 000 |
| CSNT/SAM = 1 |
| ACS/G5LA,G5LS = 00 |
| BIH = 1 /* Burst inhibited */ |
| SCY = 0111 /* cycle length = 7 */ |
| SETA = 0 |
| TRLX = 0 |
| |
| => 0xFFF8 0970 |
| |
| /*### BR5 & OR5 */ |
| /*### Base Registers & Option Registers */ |
| /*### Chap. 16.4.1 & 16.4.2 */ |
| /*### Offset : BR2(0x0000 0128) & OR2(0x0000 012C) */ |
| |
| BR5 & OR5 = 0x0000 0000 /* Not used */ |
| |
| /*### BR6 & OR6 */ |
| /*### Base Registers & Option Registers */ |
| /*### Chap. 16.4.1 & 16.4.2 */ |
| /*### Offset : BR2(0x0000 0130) & OR2(0x0000 0134) */ |
| |
| BR6 & OR6 = 0x0000 0000 /* Not used */ |
| |
| /*### BR7 & OR7 */ |
| /*### Base Registers & Option Registers */ |
| /*### Chap. 16.4.1 & 16.4.2 */ |
| /*### Offset : BR7(0x0000 0138) & OR7(0x0000 013C) */ |
| |
| BR7 & OR7 = 0x0000 0000 /* Not used */ |
| |
| /*### MAR */ |
| /*### Memory Address Register */ |
| /*### Chap. 16.4.7 */ |
| /*### Offset : 0x0000 0164 */ |
| |
| MA = External memory address |
| |
| /*### MCR */ |
| /*### Memory Command Register */ |
| /*### Chap. 16.4.5 */ |
| /*### Offset : 0x0000 0168 */ |
| |
| OP = xx /* Command op code */ |
| UM = 1 /* Select UPMA */ |
| MB = 001 /* Select CS1 */ |
| MCLF = xxxx /* Loop times */ |
| MAD = xx xxxx /* Memory array index */ |
| |
| /*### MAMR */ |
| /*### Machine A Mode Register */ |
| /*### Chap. 16.4.4 */ |
| /*### Offset : 0x0000 0170 */ |
| |
| PTA = 0101 1000 |
| PTAE = 1 /* Periodic timer A enabled */ |
| AMA = 010 |
| DSA = 00 |
| G0CLA = 000 |
| GPLA4DIS = 1 |
| RLFA = 0100 |
| WLFA = 0011 |
| TLFA = 0000 |
| |
| => 0x58A0 1430 |
| |
| /*### MBMR */ |
| /*### Machine B Mode Register */ |
| /*### Chap. 16.4.4 */ |
| /*### Offset : 0x0000 0174 */ |
| |
| PTA = 0100 1110 |
| PTAE = 0 /* Periodic timer B disabled */ |
| AMA = 000 |
| DSA = 00 |
| G0CLA = 000 |
| GPLA4DIS = 1 |
| RLFA = 0000 |
| WLFA = 0000 |
| TLFA = 0000 |
| |
| => 0x4E00 1000 |
| |
| /*### MSTAT */ |
| /*### Memory Status Register */ |
| /*### Chap. 16.4.3 */ |
| /*### Offset : 0x0000 0178 */ |
| |
| PER0~PER7 = Parity error |
| WPER = Write protection error |
| |
| => 0x0000 |
| |
| /*### MPTPR */ |
| /*### Memory Periodic Timer Prescaler Register */ |
| /*### Chap. 16.4.8 */ |
| /*### Offset : 0x0000 017A */ |
| |
| PTP = 0000 1000 /* Divide by 8 */ |
| |
| => 0x0800 |
| |
| /*### MDR */ |
| /*### Memory Data Register */ |
| /*### Chap. 16.4.6 */ |
| /*### Offset : 0x0000 017C */ |
| |
| MD = Memory data contains the RAM array word |
| |
| |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| /* TIMERS */ |
| /* */ |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| --------------------------------------------------------------------- |
| |
| /*### TBREFx */ |
| /*### Timebase Reference Registers */ |
| /*### Chap. 11.9.2 */ |
| /*### Offset : TBREFF0(0x0000 0204)/TBREFF1(0x0000 0208) */ |
| /*### (Locked) */ |
| |
| TBREFF0 = 0xFFFF FFFF |
| TBREFF1 = 0xFFFF FFFF |
| |
| --------------------------------------------------------------------- |
| |
| /*### TBSCR */ |
| /*### Timebase Status and Control Registers */ |
| /*### Chap. 11.9.3 */ |
| /*### Offset : 0x0000 0200 */ |
| /*### (Locked) */ |
| |
| TBIRQ = 00000000 |
| REF0 = 0 |
| REF1 = 0 |
| REFE0 = 0 /* Reference interrupt disable */ |
| REFE1 = 0 |
| TBF = 1 |
| TBE = 1 /* Timebase enable */ |
| |
| => 0x0003 |
| |
| --------------------------------------------------------------------- |
| |
| /*### RTCSC */ |
| /*### Real-Time Clock Status and Control Registers */ |
| /*### Chap. 11.10.1 */ |
| /*### Offset : 0x0000 0220 */ |
| /*### (Locked) */ |
| |
| RTCIRQ = 00000000 |
| SEC = 1 |
| ALR = 0 |
| 38K = 0 /* PITRTCLK is driven by 32.768KHz */ |
| SIE = 0 |
| ALE = 0 |
| RTF = 0 |
| RTE = 1 /* Real-Time clock enabled */ |
| |
| => 0x0081 |
| |
| --------------------------------------------------------------------- |
| |
| /*### RTC */ |
| /*### Real-Time Clock Registers */ |
| /*### Chap. 11.10.2 */ |
| /*### Offset : 0x0000 0224 */ |
| /*### (Locked) */ |
| |
| RTC = Real time clock measured in second |
| |
| --------------------------------------------------------------------- |
| |
| /*### RTCAL */ |
| /*### Real-Time Clock Alarm Registers */ |
| /*### Chap. 11.10.3 */ |
| /*### Offset : 0x0000 022C */ |
| /*### (Locked) */ |
| |
| ALARM = 0xFFFF FFFF |
| |
| --------------------------------------------------------------------- |
| |
| /*### RTSEC */ |
| /*### Real-Time Clock Alarm Second Registers */ |
| /*### Chap. 11.10.4 */ |
| /*### Offset : 0x0000 0228 */ |
| /*### (Locked) */ |
| |
| COUNTER = Counter bits(fraction of a second) |
| |
| --------------------------------------------------------------------- |
| |
| /*### PISCR */ |
| /*### Periodic Interrupt Status and Control Register */ |
| /*### Chap. 11.11.1 */ |
| /*### Offset : 0x0000 0240 */ |
| /*### (Locked) */ |
| |
| PIRQ = 0 |
| PS = 0 /* Write 1 to clear */ |
| PIE = 0 |
| PITF = 1 |
| PTE = 0 /* PIT disabled */ |
| |
| --------------------------------------------------------------------- |
| |
| /*### PITC */ |
| /*### PIT Count Register */ |
| /*### Chap. 11.11.2 */ |
| /*### Offset : 0x0000 0244 */ |
| /*### (Locked) */ |
| |
| PITC = PIT count |
| |
| --------------------------------------------------------------------- |
| |
| /*### PITR */ |
| /*### PIT Register */ |
| /*### Chap. 11.11.3 */ |
| /*### Offset : 0x0000 0248 */ |
| /*### (Locked) */ |
| |
| PIT = PIT count /* Read only */ |
| |
| |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| /* CLOCKS */ |
| /* */ |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| --------------------------------------------------------------------- |
| |
| |
| --------------------------------------------------------------------- |
| |
| /*### SCCR */ |
| /*### System Clock and Reset Control Register */ |
| /*### Chap. 15.6.1 */ |
| /*### Offset : 0x0000 0280 */ |
| /*### (Locked) */ |
| |
| COM = 11 /* Clock output disabled */ |
| TBS = 1 /* Timebase frequency source is GCLK2 divided by 16 */ |
| RTDIV = 0 /* The clock is divided by 4 */ |
| RTSEL = 0 /* OSCM(Crystal oscillator) is selected */ |
| CRQEN = 0 |
| PRQEN = 0 |
| EBDF = 00 /* CLKOUT is GCLK2 divided by 1 */ |
| DFSYNC = 00 /* Divided by 1 (normal operation) */ |
| DFBRG = 00 /* Divided by 1 (normal operation) */ |
| DFNL = 000 |
| DFNH = 000 |
| |
| => 0x6200 0000 |
| |
| --------------------------------------------------------------------- |
| |
| /*### PLPRCR */ |
| /*### PLL, Low-Power, and Reset Control Register */ |
| /*### Chap. 15.6.2 */ |
| /*### Offset : 0x0000 0284 */ |
| /*### (Locked) */ |
| |
| MF = 0x005 /* 48MHz (?) ( = 8MHz * (MF+1) ) */ |
| SPLSS = 0 |
| TEXPS = 0 |
| TMIST = 0 |
| CSRC = 0 /* The general system clock is generated by the DFNH field */ |
| LPM = 00 /* Normal high/normal low mode */ |
| CSR = 0 |
| LOLRE = 0 |
| FIOPD = 0 |
| |
| => 0x0050 0000 |
| |
| --------------------------------------------------------------------- |
| |
| /*### RSR */ |
| /*### Reset Status Register */ |
| /*### Chap. 12.2 */ |
| /*### Offset : 0x0000 0288 */ |
| /*### (Locked) */ |
| |
| EHRS = External hard reset |
| ESRS = External soft reset |
| LLRS = Loss-of-lock reset |
| SWRS = Software watchdog reset |
| CSRS = Check stop reset |
| DBHRS = Debug port hard reset |
| DBSRS = Debug port soft reset |
| JTRS = JTAG reset |
| |
| |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| /* DMA */ |
| /* */ |
| /*------------------------------------------------------------------- */ |
| /*------------------------------------------------------------------- */ |
| --------------------------------------------------------------------- |
| |
| /*### SDSR */ |
| /*### SDMA Status Register */ |
| /*### Chap. 20.2.2 */ |
| /*### Offset : 0x0000 0908 */ |
| |
| SBER = 0 /* SDMA channel bus error */ |
| DSP2 = 0 /* DSP chain2 (Tx) interrupt */ |
| DSP1 = 0 /* DSP chain1 (Rx) interrupt */ |
| |
| => 0x00 |
| |
| /*### SDMR */ |
| /*### SDMA Mask Register */ |
| /*### Chap. 20.2.3 */ |
| /*### Offset : 0x0000 090C */ |
| |
| SBER = 0 |
| DSP2 = 0 |
| DSP1 = 0 /* All interrupts are masked */ |
| |
| => 0x00 |
| |
| /*### SDAR */ |
| /*### SDMA Address Register */ |
| /*### Chap. 20.2.4 */ |
| /*### Offset : 0x0000 0904 */ |
| |
| AR = 0xxxxx xxxx /* current system address */ |
| |
| => 0xFA20 23AC |
| |
| /*### IDSRx */ |
| /*### IDMA Status Register */ |
| /*### Chap. 20.3.3.2 */ |
| /*### Offset : IDSR1(0x0000 0910) & IDSR2(0x0000 0918) */ |
| |
| AD = 0 |
| DONE = 0 |
| OB = 0 |
| |
| => 0x00 |
| |
| /*### IDMRx */ |
| /*### IDMA Mask Register */ |
| /*### Chap. 20.3.3.3 */ |
| /*### Offset : IDMR1(0x0000 0914) & IDMR2(0x0000 091C) */ |
| |
| AD = 0 |
| DONE = 0 |
| OB = 0 |
