878 lines
20 KiB
Plaintext
878 lines
20 KiB
Plaintext
# Porting U-Boot onto RPXlite board
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# Written by Yoo. Jonghoon
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# E-Mail : yooth@ipone.co.kr
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# IP ONE Inc.
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# Since 2001. 1. 29
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# Shell : bash
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# Cross-compile tools : Montavista Hardhat
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# Debugging tools : Windriver VisionProbe (PowerPC BDM)
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# ppcboot ver. : ppcboot-0.8.1
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###############################################################
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# 1. Hardware setting
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###############################################################
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1.1. Board, BDM settings
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Install board, BDM, connect each other
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1.2. Save Register value
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Boot with board-on monitor program and save the
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register values with BDM.
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1.3. Configure flash programmer
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Check flash memory area in the memory map.
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0xFFC00000 - 0xFFFFFFFF
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Boot monitor program is at
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0xFFF00000
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You can program on-board flash memory with VisionClick
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flash programmer. Set the target flash device as:
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29DL800B
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(?) The flash memory device in the board *is* 29LV800B,
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but I cannot program it with '29LV800B' option.
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(in VisionClick flash programming tools)
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I don't know why...
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1.4. Save boot monitor program *IMPORTANT*
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Upload boot monitor program from board to file.
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boot monitor program starts at 0xFFF00000
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1.5. Test flash memory programming
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Try to erase boot program in the flash memory,
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and re-write them.
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*WARNING* YOU MUST SAVE BOOT PROGRAM TO FILE
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BEFORE ERASING FLASH
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###############################################################
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# 2. U-Boot setting
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###############################################################
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2.1. Download U-Boot tarball at
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ftp://ftp.denx.de
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(The latest version is ppcboot-0.8.1.tar.bz2)
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To extract the archive use the following syntax :
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> bzip2 -cd ppcboot-0.8.1.tar.bz2 | tar xf -
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2.2. Add the following lines in '.profile'
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export PATH=$PATH:/opt/hardhat/devkit/ppc/8xx/bin
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2.3. Make board specific config, for example:
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> cd ppcboot-0.8.1
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> make TQM860L_config
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Now we can build ppcboot bin files.
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After make all, you must see these files in your
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ppcboot root directory.
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ppcboot
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ppcboot.bin
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ppcboot.srec
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ppcboot.map
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2.4. Make your own board directory into the
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ppcboot-0.8.1/board
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and make your board-specific files here.
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For exmanple, tqm8xx files are composed of
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.depend : Nothing
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Makefile : To make config file
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config.mk : Sets base address
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flash.c : Flash memory control files
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ppcboot.lds : linker(ld) script? (I don't know this yet)
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tqm8xx.c : DRAM control and board check routines
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And, add your board config lines in the
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ppcboot-0.8.1/Makefile
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Finally, add config_(your board).h file in the
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ppcboot-0.8.1/include/
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I've made board/rpxlite directory, and just copied
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tqm8xx settings for now.
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Rebuild ppcboot for rpxlite board:
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> make rpxlite_config
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> make
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###############################################################
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# 3. U-Boot porting
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###############################################################
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3.1. My RPXlite files are based on tqm8xx board files.
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> cd board
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> cp -r tqm8xx RPXLITE
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> cd RPXLITE
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> mv tqm8xx.c RPXLITE.c
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> cd ../../include
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> cp config_tqm8xx.h config_RPXLITE.h
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3.2. Modified files are:
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board/RPXLITE/RPXLITE.c /* DRAM-related routines */
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board/RPXLITE/flash.c /* flash-related routines */
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board/RPXLITE/config.mk /* set text base address */
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cpu/mpc8xx/serial.c /* board specific register setting */
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include/config_RPXLITE.h /* board specific registers */
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See 'reg_config.txt' for register values in detail.
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###############################################################
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# 4. Running Linux
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###############################################################
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###############################################################
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# Misc Information
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###############################################################
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mem_config.txt:
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===============
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Flash memory device : AM29LV800BB (1Mx8Bit) x 4 device
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manufacturer id : 01 (AMD)
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device id : 5B (AM29LV800B)
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size : 4Mbyte
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sector # : 19
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Sector information :
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number start addr. size
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00 FFC0_0000 64
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01 FFC1_0000 32
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02 FFC1_8000 32
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03 FFC2_0000 128
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04 FFC4_0000 256
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05 FFC8_0000 256
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06 FFCC_0000 256
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07 FFD0_0000 256
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08 FFD4_0000 256
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09 FFD8_0000 256
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10 FFDC_0000 256
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11 FFE0_0000 256
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12 FFE4_0000 256
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13 FFE8_0000 256
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14 FFEC_0000 256
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15 FFF0_0000 256
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16 FFF4_0000 256
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17 FFF8_0000 256
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18 FFFC_0000 256
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reg_config.txt:
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===============
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/*------------------------------------------------------------------- */
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/*------------------------------------------------------------------- */
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/* SIU (System Interface Unit) */
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/* */
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/*------------------------------------------------------------------- */
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/*------------------------------------------------------------------- */
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/*### IMMR */
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/*### Internal Memory Map Register */
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/*### Chap. 11.4.1 */
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ISB = 0xFA20 /* Set the Immap base = 0xFA20 0000 */
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PARTNUM = 0x21
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MASKNUM = 0x00
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=> 0xFA20 2100
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---------------------------------------------------------------------
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/*### SIUMCR */
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/*### SIU Module Configuration Register */
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/*### Chap. 11.4.2 */
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/*### Offset : 0x0000 0000 */
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EARB = 0
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EARP = 0
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DSHW = 0
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DBGC = 0
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DBPC = 0
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FRC = 0
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DLK = 0
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OPAR = 0
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PNCS = 0
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DPC = 0
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MPRE = 0
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MLRC = 10 /* ~KR/~RETRY/~IRQ4/SPKROUT functions as ~KR/~TRTRY */
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AEME = 0
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SEME = 0
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BSC = 0
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GB5E = 0
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B2DD = 0
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B3DD = 0
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=> 0x0000 0800
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---------------------------------------------------------------------
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/*### SYPCR */
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/*### System Protection Control Register */
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/*### Chap. 11.4.3 */
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/*### Offset : 0x0000 0004 */
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SWTC = 0xFFFF /* SW watchdog timer count = 0xFFFF */
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BMT = 0x06 /* BUS monitoring timing */
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BME = 1 /* BUS monitor enable */
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SWF = 1
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SWE = 0 /* SW watchdog disable */
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SWRI = 0
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SWP = 1
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=> 0xFFFF 0689
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---------------------------------------------------------------------
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/*### TESR */
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/*### Transfer Error Status Register */
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/*### Chap. 11.4.4 */
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/*### Offset : 0x0000 0020 */
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IEXT = 0
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ITMT = 0
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IPB = 0000
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DEXT = 0
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DTMT = 0
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DPB = 0000
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=> 0x0000 0000
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---------------------------------------------------------------------
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/*### SIPEND */
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/*### SIU Interrupt Pending Register */
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/*### Chap. 11.5.4.1 */
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/*### Offset : 0x0000 0010 */
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IRQ0~IRQ7 = 0
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LVL0~LVL7 = 0
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=> 0x0000 0000
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---------------------------------------------------------------------
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/*### SIMASK */
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/*### SIU Interrupt Mask Register */
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/*### Chap. 11.5.4.2 */
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/*### Offset : 0x0000 0014 */
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IRM0~IRM7 = 0 /* Mask all interrupts */
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LVL0~LVL7 = 0
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=> 0x0000 0000
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---------------------------------------------------------------------
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/*### SIEL */
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/*### SIU Interrupt Edge/Level Register */
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/*### Chap. 11.5.4.3 */
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/*### Offset : 0x0000 0018 */
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ED0~ED7 = 0 /* Low level triggered */
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WMn0~WMn7 = 0 /* Not allowed to exit from low-power mode */
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=> 0x0000 0000
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---------------------------------------------------------------------
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/*### SIVEC */
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/*### SIU Interrupt Vector Register */
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/*### Chap. 11.5.4.4 */
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/*### Offset : 0x0000 001C */
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INTC = 3C /* The lowest interrupt is pending..(?) */
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=> 0x3C00 0000
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---------------------------------------------------------------------
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/*### SWSR */
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/*### Software Service Register */
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/*### Chap. 11.7.1 */
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/*### Offset : 0x0000 001E */
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SEQ = 0
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=> 0x0000
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---------------------------------------------------------------------
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/*### SDCR */
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/*### SDMA Configuration Register */
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/*### Chap. 20.2.1 */
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/*### Offset : 0x0000 0032 */
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FRZ = 0
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RAID = 01 /* Priority level 5 (BR5) (normal operation) */
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=> 0x0000 0001
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/*------------------------------------------------------------------- */
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/*------------------------------------------------------------------- */
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/* UPMA (User Programmable Machine A) */
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/* */
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/*------------------------------------------------------------------- */
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/*------------------------------------------------------------------- */
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/*### Chap. 16.6.4.1 */
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/*### Offset = 0x0000 017c */
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T0 = CFFF CC24 /* Single Read */
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T1 = 0FFF CC04
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T2 = 0CAF CC04
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T3 = 03AF CC08
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T4 = 3FBF CC27 /* last */
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T5 = FFFF CC25
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T6 = FFFF CC25
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T7 = FFFF CC25
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T8 = CFFF CC24 /* Burst Read */
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T9 = 0FFF CC04
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T10 = 0CAF CC84
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T11 = 03AF CC88
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T12 = 3FBF CC27 /* last */
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T13 = FFFF CC25
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T14 = FFFF CC25
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T15 = FFFF CC25
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T16 = FFFF CC25
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T17 = FFFF CC25
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T18 = FFFF CC25
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T19 = FFFF CC25
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T20 = FFFF CC25
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T21 = FFFF CC25
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T22 = FFFF CC25
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T23 = FFFF CC25
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T24 = CFFF CC24 /* Single Write */
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T25 = 0FFF CC04
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T26 = 0CFF CC04
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T27 = 03FF CC00
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T28 = 3FFF CC27 /* last */
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T29 = FFFF CC25
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T30 = FFFF CC25
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T31 = FFFF CC25
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T32 = CFFF CC24 /* Burst Write */
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T33 = 0FFF CC04
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T34 = 0CFF CC80
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T35 = 03FF CC8C
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T36 = 0CFF CC00
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T37 = 33FF CC27 /* last */
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T38 = FFFF CC25
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T39 = FFFF CC25
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T40 = FFFF CC25
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T41 = FFFF CC25
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T42 = FFFF CC25
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T43 = FFFF CC25
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T44 = FFFF CC25
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T45 = FFFF CC25
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T46 = FFFF CC25
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T47 = FFFF CC25
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T48 = C0FF CC24 /* Refresh */
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T49 = 03FF CC24
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T50 = 0FFF CC24
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T51 = 0FFF CC24
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T52 = 3FFF CC27 /* last */
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T53 = FFFF CC25
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T54 = FFFF CC25
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T55 = FFFF CC25
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T56 = FFFF CC25
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T57 = FFFF CC25
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T58 = FFFF CC25
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T59 = FFFF CC25
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T60 = FFFF CC25 /* Exception */
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T61 = FFFF CC25
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T62 = FFFF CC25
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T63 = FFFF CC25
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/*------------------------------------------------------------------- */
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/*------------------------------------------------------------------- */
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/* UPMB */
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/* */
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/*------------------------------------------------------------------- */
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/*------------------------------------------------------------------- */
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---------------------------------------------------------------------
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/*### Chap. 16.6.4.1 */
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/*------------------------------------------------------------------- */
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/*------------------------------------------------------------------- */
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/* MEMC */
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/* */
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/*------------------------------------------------------------------- */
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/*------------------------------------------------------------------- */
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---------------------------------------------------------------------
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/*### BR0 & OR0 */
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/*### Base Registers & Option Registers */
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/*### Chap. 16.4.1 & 16.4.2 */
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/*### Offset : BR0(0x0000 0100) & OR0(0x0000 0104) */
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/*### Flash memory */
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BA = 1111 1110 0000 0000 0 /* Base addr = 0xFE00 0000 */
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AT = 000
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PS = 00
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PARE = 0
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WP = 0
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MS = 0 /* GPCM */
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V = 1 /* Valid */
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=> 0xFE00 0001
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AM = 1111 1110 0000 0000 0 /* 32MBytes */
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ATM = 000
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CSNT/SAM = 0
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ACS/G5LA,G5LS = 00
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BIH = 1 /* Burst inhibited */
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SCY = 0100 /* cycle length = 4 */
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SETA = 0
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TRLX = 0
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EHTR = 0
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=> 0xFE00 0140
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/*### BR1 & OR1 */
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/*### Base Registers & Option Registers */
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/*### Chap. 16.4.1 & 16.4.2 */
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/*### Offset : BR1(0x0000 0108) & OR1(0x0000 010C) */
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/*### SDRAM */
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BA = 0000 0000 0000 0000 0 /* Base addr = 0x0000 0000 */
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AT = 000
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PS = 00
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PARE = 0
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WP = 0
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MS = 1 /* UPMA */
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V = 1 /* Valid */
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=> 0x0000 0081
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AM = 1111 1110 0000 0000 /* 32MBytes */
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ATM = 000
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CSNT/SAM = 1
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ACS/G5LA,G5LS = 11
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BIH = 0
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SCY = 0000 /* cycle length = 0 */
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SETA = 0
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TRLX = 0
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EHTR = 0
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=> 0xFE00 0E00
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/*### BR2 & OR2 */
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/*### Base Registers & Option Registers */
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/*### Chap. 16.4.1 & 16.4.2 */
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/*### Offset : BR2(0x0000 0110) & OR2(0x0000 0114) */
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BR2 & OR2 = 0x0000 0000 /* Not used */
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/*### BR3 & OR3 */
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/*### Base Registers & Option Registers */
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/*### Chap. 16.4.1 & 16.4.2 */
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/*### Offset : BR3(0x0000 0118) & OR3(0x0000 011C) */
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/*### BCSR */
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BA = 1111 1010 0100 0000 0 /* Base addr = 0xFA40 0000 */
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AT = 000
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PS = 00
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PARE = 0
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WP = 0
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MS = 0 /* GPCM */
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V = 1 /* Valid */
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=> 0xFA40 0001
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AM = 1111 1111 0111 1111 1 /* (?) */
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ATM = 000
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CSNT/SAM = 1
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ACS/G5LA,G5LS = 00
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BIH = 1 /* Burst inhibited */
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SCY = 0001 /* cycle length = 1 */
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SETA = 0
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TRLX = 0
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=> 0xFF7F 8910
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/*### BR4 & OR4 */
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/*### Base Registers & Option Registers */
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/*### Chap. 16.4.1 & 16.4.2 */
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/*### Offset : BR4(0x0000 0120) & OR4(0x0000 0124) */
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/*### NVRAM & SRAM */
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BA = 1111 1010 0000 0000 0 /* Base addr = 0xFA00 0000 */
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AT = 000
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PS = 01
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PARE = 0
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WP = 0
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MS = 0 /* GPCM */
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V = 1 /* Valid */
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=> 0xFA00 0401
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AM = 1111 1111 1111 1000 0 /* 8MByte */
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ATM = 000
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CSNT/SAM = 1
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ACS/G5LA,G5LS = 00
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BIH = 1 /* Burst inhibited */
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SCY = 0111 /* cycle length = 7 */
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SETA = 0
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TRLX = 0
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=> 0xFFF8 0970
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/*### BR5 & OR5 */
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/*### Base Registers & Option Registers */
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/*### Chap. 16.4.1 & 16.4.2 */
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/*### Offset : BR2(0x0000 0128) & OR2(0x0000 012C) */
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BR5 & OR5 = 0x0000 0000 /* Not used */
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/*### BR6 & OR6 */
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/*### Base Registers & Option Registers */
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/*### Chap. 16.4.1 & 16.4.2 */
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/*### Offset : BR2(0x0000 0130) & OR2(0x0000 0134) */
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BR6 & OR6 = 0x0000 0000 /* Not used */
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/*### BR7 & OR7 */
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/*### Base Registers & Option Registers */
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/*### Chap. 16.4.1 & 16.4.2 */
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/*### Offset : BR7(0x0000 0138) & OR7(0x0000 013C) */
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BR7 & OR7 = 0x0000 0000 /* Not used */
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/*### MAR */
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/*### Memory Address Register */
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/*### Chap. 16.4.7 */
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/*### Offset : 0x0000 0164 */
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MA = External memory address
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/*### MCR */
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/*### Memory Command Register */
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/*### Chap. 16.4.5 */
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/*### Offset : 0x0000 0168 */
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OP = xx /* Command op code */
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UM = 1 /* Select UPMA */
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MB = 001 /* Select CS1 */
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MCLF = xxxx /* Loop times */
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MAD = xx xxxx /* Memory array index */
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/*### MAMR */
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/*### Machine A Mode Register */
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/*### Chap. 16.4.4 */
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/*### Offset : 0x0000 0170 */
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PTA = 0101 1000
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PTAE = 1 /* Periodic timer A enabled */
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AMA = 010
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DSA = 00
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G0CLA = 000
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GPLA4DIS = 1
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RLFA = 0100
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WLFA = 0011
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|
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
|