fw.s
资源名称:SMDK2440.rar [点击查看]
上传用户:qiulin1960
上传日期:2013-10-16
资源大小:2844k
文件大小:30k
源码类别:
Windows CE
开发平台:
Windows_Unix
- ;******************************************************************************
- ;*
- ;* System On Chip(SOC)
- ;*
- ;* Copyright (c) 2002 Software Center, Samsung Electronics, Inc.
- ;* Copyright (c) 2002 Mobile Solution Project Team, Samsung Electronics, Inc.
- ;* All rights reserved.
- ;*
- ;* This software is the confidential and proprietary information of Samsung
- ;* Electronics, Inc("Confidential Information"). You Shall not disclose such
- ;* Confidential Information and shall use it only in accordance with the terms
- ;* of the license agreement you entered into Samsung.
- ;*
- ;******************************************************************************
- OPT 2
- INCLUDE kxarm.h
- INCLUDE reg2440.a
- OPT 1
- OPT 128
- ;---------------------------------------------------------------------------
- ; 4 LED light function
- ; The LEDs are located below AMD Flash ROM
- MACRO
- LED_ON $data
- LDR r10, =0x56000054
- LDR r11, =$data
- MOV r11, r11, lsl #4
- STR r11, [r10]
- MEND
- ;---------------------------------------------------------------------------
- ; 4 LED light function
- ; The LEDs are located below AMD Flash ROM
- MACRO
- VLED_ON $data
- LDR r10, =0xB1600054
- LDR r11, =$data
- MOV r11, r11, lsl #4
- STR r11, [r10]
- MEND
- ;---------------------------------------------------------------------------
- IMPORT KernelStart
- IMPORT ARMClearUTLB
- IMPORT ARMFlushICache
- IMPORT ARMFlushDCache
- EXPORT SelfRefreshAndPowerOff
- EXPORT SelfRefreshAndPowerOff2
- ; for S3C2440 v0.17 board
- ; 300MHz -> 1.1 +- 0.05 Volt
- ; 400MHz -> 1.2 +- 0.05 Volt
- ; 533MHz -> 1.35 +- 0.05 Volt
- ; /////////////////////////////////////////
- ; // D4 D3 D2 D1 D0
- ; // 0 1 0 0 0 // 1.35V
- ; // 0 1 0 0 1 // 1.30V
- ; // 0 1 0 1 0 // 1.25V
- ; // 0 1 0 1 1 // 1.20V
- ; // 0 1 1 0 0 // 1.15V
- ; // 0 1 1 0 1 // 1.10V
- ; // 0 1 1 1 0 // 1.05V
- ; // 0 1 1 1 1 // 1.00V
- ; // 1 0 0 0 1 // 0.95V
- ; // 1 0 0 1 1 // 0.90V
- ; // 1 0 1 0 1 // 0.85V
- ; // 1 0 1 1 1 // 0.80V
- GBLA FIN
- FIN SETA 12 ; 12, 16
- GBLA S2440A
- S2440A SETA 1 ; 0 = S2440X, 1 = S2440A
- ;FCLK EQU (400)
- ;PLLVAL EQU ((((92)<<12) + (1<<4) + 0x0))
- ;FCLK EQU (533)
- ;PLLVAL EQU (((214 << 12) + (3 << 4) + 0))
- [ FIN = 12 ;
- GBLA CLKVAL
- ;CLKVAL SETA 300
- CLKVAL SETA 400
- [ CLKVAL = 300
- FCLK EQU (300)
- [ S2440A = 1 ; S2440A
- PLLVAL EQU (((67 << 12) + (1 << 4) + 1))
- | ; S2440X
- PLLVAL EQU (((67 << 12) + (1 << 4) + 0))
- ]
- CLKDIVVAL EQU 7 ; 0x0 = 1:1:1, 0x1 = 1:1:2, 0x2 = 1:2:2, 0x3 = 1:2:4, 0x4 = 1:4:4, 0x5 = 1:4:8, 0x6 = 1:3:3, 0x7 = 1:3:6
- D4VAL EQU 0 ; 1.05 V
- D3VAL EQU 1
- D2VAL EQU 1
- D1VAL EQU 1
- D0VAL EQU 0
- ]
- [ CLKVAL = 400
- FCLK EQU (400)
- [ S2440A = 1 ; S2440A
- PLLVAL EQU (((92 << 12) + (1 << 4) + 1))
- | ; S2440X
- PLLVAL EQU (((92 << 12) + (1 << 4) + 0))
- ]
- CLKDIVVAL EQU 5 ; 0x0 = 1:1:1, 0x1 = 1:1:2, 0x2 = 1:2:2, 0x3 = 1:2:4, 0x4 = 1:4:4, 0x5 = 1:4:8, 0x6 = 1:3:3, 0x7 = 1:3:6
- D4VAL EQU 0 ; 1.3V
- D3VAL EQU 1
- D2VAL EQU 0
- D1VAL EQU 0
- D0VAL EQU 1
- ]
- UPLLVAL EQU (((56 << 12) + (2 << 4) + 2))
- ] ; FIN = OSC_12MHZ
- [ FIN = 16
- GBLA CLKVAL
- ;CLKVAL SETA 296
- CLKVAL SETA 399
- ;CLKVAL SETA 530
- [ CLKVAL = 296
- FCLK EQU (296)
- [ S2440A = 1 ; S2440A
- PLLVAL EQU (((97 << 12) + (1 << 4) + 2))
- | ; S2440X
- PLLVAL EQU (((97 << 12) + (1 << 4) + 1))
- ]
- CLKDIVVAL EQU 7 ; 0x0 = 1:1:1, 0x1 = 1:1:2, 0x2 = 1:2:2, 0x3 = 1:2:4, 0x4 = 1:4:4, 0x5 = 1:4:8, 0x6 = 1:3:3, 0x7 = 1:3:6
- D4VAL EQU 0 ; 1.05 V
- D3VAL EQU 1
- D2VAL EQU 1
- D1VAL EQU 1
- D0VAL EQU 0
- ]
- [ CLKVAL = 399
- FCLK EQU (399)
- [ S2440A = 1 ; S2440A
- PLLVAL EQU (((110 << 12) + (3 << 4) + 1))
- | ; S2440X
- PLLVAL EQU (((110 << 12) + (3 << 4) + 0))
- ]
- CLKDIVVAL EQU 7 ; 0x0 = 1:1:1, 0x1 = 1:1:2, 0x2 = 1:2:2, 0x3 = 1:2:4, 0x4 = 1:4:4, 0x5 = 1:4:8, 0x6 = 1:3:3, 0x7 = 1:3:6
- D4VAL EQU 0 ; 1.3V
- D3VAL EQU 1
- D2VAL EQU 0
- D1VAL EQU 0
- D0VAL EQU 1
- ]
- [ CLKVAL = 530
- FCLK EQU (530)
- [ S2440A = 1 ; S2440A
- PLLVAL EQU (((86 << 12) + (1 << 4) + 1))
- | ; S2440X
- PLLVAL EQU (((86 << 12) + (1 << 4) + 0))
- ]
- CLKDIVVAL EQU 5 ; 0x0 = 1:1:1, 0x1 = 1:1:2, 0x2 = 1:2:2, 0x3 = 1:2:4, 0x4 = 1:4:4, 0x5 = 1:4:8, 0x6 = 1:3:3, 0x7 = 1:3:6
- D4VAL EQU 0 ; 1.35 V
- D3VAL EQU 1
- D2VAL EQU 0
- D1VAL EQU 0
- D0VAL EQU 0
- ]
- UPLLVAL EQU (((60 << 12) + (0x4 << 4) + 0x2))
- ] ; FIN = OSC_16MHZ
- R1_iA EQU (1 << 31)
- R1_nF EQU (1 << 30)
- ; Data Cache Characteristics.
- ;
- DCACHE_LINES_PER_SET_BITS EQU 6
- DCACHE_LINES_PER_SET EQU 64
- DCACHE_NUM_SETS EQU 8
- DCACHE_SET_INDEX_BIT EQU (32 - DCACHE_LINES_PER_SET_BITS)
- DCACHE_LINE_SIZE EQU 32
- SLEEPDATA_BASE_VIRTUAL EQU 0xAC024000 ; keep in sync w/ config.bib
- SLEEPDATA_BASE_PHYSICAL EQU 0x30024000
- WORD_SIZE EQU (4)
- SleepState_Data_Start EQU (0)
- SleepState_WakeAddr EQU (SleepState_Data_Start )
- SleepState_MMUCTL EQU (SleepState_WakeAddr + WORD_SIZE )
- SleepState_MMUTTB EQU (SleepState_MMUCTL + WORD_SIZE )
- SleepState_MMUDOMAIN EQU (SleepState_MMUTTB + WORD_SIZE )
- SleepState_SVC_SP EQU (SleepState_MMUDOMAIN + WORD_SIZE )
- SleepState_SVC_SPSR EQU (SleepState_SVC_SP + WORD_SIZE )
- SleepState_FIQ_SPSR EQU (SleepState_SVC_SPSR + WORD_SIZE )
- SleepState_FIQ_R8 EQU (SleepState_FIQ_SPSR + WORD_SIZE )
- SleepState_FIQ_R9 EQU (SleepState_FIQ_R8 + WORD_SIZE )
- SleepState_FIQ_R10 EQU (SleepState_FIQ_R9 + WORD_SIZE )
- SleepState_FIQ_R11 EQU (SleepState_FIQ_R10 + WORD_SIZE )
- SleepState_FIQ_R12 EQU (SleepState_FIQ_R11 + WORD_SIZE )
- SleepState_FIQ_SP EQU (SleepState_FIQ_R12 + WORD_SIZE )
- SleepState_FIQ_LR EQU (SleepState_FIQ_SP + WORD_SIZE )
- SleepState_ABT_SPSR EQU (SleepState_FIQ_LR + WORD_SIZE )
- SleepState_ABT_SP EQU (SleepState_ABT_SPSR + WORD_SIZE )
- SleepState_ABT_LR EQU (SleepState_ABT_SP + WORD_SIZE )
- SleepState_IRQ_SPSR EQU (SleepState_ABT_LR + WORD_SIZE )
- SleepState_IRQ_SP EQU (SleepState_IRQ_SPSR + WORD_SIZE )
- SleepState_IRQ_LR EQU (SleepState_IRQ_SP + WORD_SIZE )
- SleepState_UND_SPSR EQU (SleepState_IRQ_LR + WORD_SIZE )
- SleepState_UND_SP EQU (SleepState_UND_SPSR + WORD_SIZE )
- SleepState_UND_LR EQU (SleepState_UND_SP + WORD_SIZE )
- SleepState_SYS_SP EQU (SleepState_UND_LR + WORD_SIZE )
- SleepState_SYS_LR EQU (SleepState_SYS_SP + WORD_SIZE )
- SleepState_Data_End EQU (SleepState_SYS_LR + WORD_SIZE )
- SLEEPDATA_SIZE EQU (SleepState_Data_End - SleepState_Data_Start) / 4
- MMU_CTL_MASK EQU 0x3FFF0000
- MMU_TTB_MASK EQU 0x00003FFF
- MMU_ID_MASK EQU 0xFFFFFFF0
- Mode_USR EQU 0x10
- Mode_FIQ EQU 0x11
- Mode_IRQ EQU 0x12
- Mode_SVC EQU 0x13
- Mode_ABT EQU 0x17
- Mode_UND EQU 0x1B
- Mode_SYS EQU 0x1F
- I_Bit EQU 0x80
- F_Bit EQU 0x40
- BIT_SELFREFRESH EQU (1<<22)
- HandleFIQ EQU 0x33ffff1c
- ;**
- ; * StartUp - Image EntryPoint
- ; *
- ; * @return .
- ; * @param .
- ; *
- STARTUPTEXT
- LEAF_ENTRY StartUp
- 1 b ResetHandler
- b %B1 ;handler for Undefined mode
- b %B1 ;handler for SWI interrupt
- b %B1 ;handler for PAbort
- b %B1 ;handler for DAbort
- b %B1 ;reserved
- b %B1 ;handler for IRQ interrupt
- ;b HandlerFIQ ;handler for FIQ interrupt
- ENTER_POWER_OFF ;FIQ Handler
- ; LED_ON 0x4
- ldr r0,=GPFCON
- ldr r1,=0x5500
- str r1,[r0]
- ldr r0,=GPFDAT
- ldr r1,=0x20
- str r1,[r0]
- ldr r5,=REFRESH
- ldr r6,[r5]
- orr r6, r6, #BIT_SELFREFRESH
- ldr r3,=MISCCR
- ldr r4,[r3]
- orr r4,r4,#(3<<17)
- bic r4,r4, #(7 << 20)
- orr r4,r4, #(6 << 20)
- ldr r2,=0x7fff8
- ldr r1,=CLKCON
- mov r0,#16
- b _EPO ;This code isn't needed for code on the ROM
- ALIGN 32
- _EPO
- 1 str r6, [r5] ;Enable SDRAM self-refresh
- 2 subs r0,r0,#1 ;Wait until self-refresh is issued,which may not be needed.
- bne %B2
- str r4,[r3] ;Make sure that SCLK0:SCLK->0, SCLK1:SCLK->0, SCKE=L during boot-up
- str r2,[r1] ;CPU will enter into POWER_OFF mode.
- b .
- LTORG
- ResetHandler
- ; LED_ON 0xa
- ; for smdk2440 v0.17 board 533Mhz (by shlim 031107)
- [ {FALSE}
- ldr r0, = GPBDAT ; D4
- ldr r1, [r0]
- ldr r2, = 0x77f
- and r1, r1, r2
- ldr r2, = (0<<7)
- orr r1, r1, r2
- str r1, [r0]
- ]
- ldr r0, = GPFDAT ; D3~0
- ldr r1, [r0]
- ldr r2, = 0x0f
- and r1, r1, r2
- ldr r2, = (1<<7)
- orr r1, r1, r2
- ldr r2, = (0<<6)
- orr r1, r1, r2
- ldr r2, = (0<<5)
- orr r1, r1, r2
- ldr r2, = (0<<4)
- orr r1, r1, r2
- str r1, [r0]
- [ {FALSE}
- ldr r0, = GPBCON ; GPB7: Output
- ldr r1, [r0]
- ldr r2, = 0x3f3fff
- and r1, r1, r2
- ldr r2, = (1<<14)
- orr r1, r1, r2
- str r1, [r0]
- ]
- ldr r0, = GPFCON ; GPF4~7: Output
- ldr r1, [r0]
- ldr r2, = 0x00ff
- and r1, r1, r2
- ldr r2, = 0x5500
- orr r1, r1, r2
- str r1, [r0]
- [ {FALSE}
- ldr r0, = GPBDAT ; Latch enable
- ldr r1, [r0]
- ldr r2, = ~(0<<8)
- and r1, r1, r2
- str r1, [r0]
- ldr r0, = GPBCON ; GPB8: Output
- ldr r1, [r0]
- ldr r2, = 0x3cffff
- and r1, r1, r2
- ldr r2, = (1<<16)
- orr r1, r1, r2
- str r1, [r0]
- ldr r0, = GPBDAT ; Output enable
- ldr r1, [r0]
- ldr r2, = (1<<10)
- orr r1, r1, r2
- str r1, [r0]
- ldr r0, = GPBCON ; GPB10: Output
- ldr r1, [r0]
- ldr r2, = 0x0fffff
- and r1, r1, r2
- ldr r2, = (1<<20)
- orr r1, r1, r2
- str r1, [r0]
- ldr r0, = GPBDAT ; Latch disable
- ldr r1, [r0]
- ldr r2, = (1<<8)
- orr r1, r1, r2
- str r1, [r0]
- ]
- ; end for 533Mhz code
- ldr r0, = INTMSK
- ldr r1, = ~BIT_BAT_FLT ; all interrupt disable, nBATT_FLT =enabled
- str r1, [r0]
- ldr r0, = INTSUBMSK
- ldr r1, = 0x7ff ;all sub interrupt disable
- str r1, [r0]
- ldr r0, = INTMOD
- ldr r1, = BIT_BAT_FLT ; set all interrupt as IRQ, BAT_FLT = FIQ
- str r1, [r0]
- ldr r1, =MISCCR ; MISCCR's Bit [22:20] -> 100
- ldr r0, [r1]
- bic r0, r0, #(7 << 20)
- orr r0, r0, #(4 << 20)
- str r0, [r1]
- bl ARMClearUTLB
- bl ARMFlushICache
- ldr r0, = (DCACHE_LINES_PER_SET - 1)
- ldr r1, = (DCACHE_NUM_SETS - 1)
- ldr r2, = DCACHE_SET_INDEX_BIT
- ldr r3, = DCACHE_LINE_SIZE
- bl ARMFlushDCache
- nop
- nop
- nop
- ldr r0, = GPFCON
- ldr r1, = 0x55aa
- str r1, [r0]
- ldr r0, = WTCON ; watch dog disable
- ldr r1, = 0x0
- str r1, [r0]
- [ {TRUE}
- ldr r0, = CLKDIVN
- ldr r1, = CLKDIVVAL ; 0x0 = 1:1:1 , 0x1 = 1:1:2, use CLKDIVVAL instead of 7
- ; 0x2 = 1:2:2 , 0x3 = 1:2:4, 0x4 = 1:4:4, 0x5 = 1:4:8, 0x6 = 1:3:3, 0x7 = 1:3:6
- str r1, [r0]
- ands r1, r1, #0xe ; Make AsyncBusMode
- beq %F1
- mrc p15, 0, r0, c1, c0, 0
- orr r0, r0, #R1_nF:OR:R1_iA
- mcr p15, 0, r0, c1, c0, 0
- 1
- ldr r0, = LOCKTIME ; To reduce PLL lock time, adjust the LOCKTIME register.
- ldr r1, = 0xffffff
- str r1, [r0]
- ldr r0, = UPLLCON ; Fin=12MHz, Fout=48MHz
- [ FIN = 12
- ldr r1, = ((0x38 << 12) + (0x2 << 4) + 0x2)
- |
- ldr r1, = ((60 << 12) + (4 << 4) + 0x2)
- ]
- str r1, [r0]
- nop ; Caution: After UPLL setting, at least 7-clocks delay must be inserted for setting hardware be completed.
- nop
- nop
- nop
- nop
- nop
- nop
- ldr r0, = CAMDIVN
- ldr r1, = 0
- str r1, [r0]
- ldr r0, = MPLLCON ; Configure MPLL ; Fin=12MHz, Fout=50MHz
- ldr r1, = PLLVAL
- str r1, [r0]
- ]
- mov r0, #0x2000
- 1
- subs r0, r0, #1
- bne %B1
- ; :::::::::::::::::::::::::::::::::::::::::::::
- ; Add for Power Management
- ; - - - - - - - - - - - - - - - - - - - - - - -
- ldr r1, =GSTATUS2 ; Determine Booting Mode
- ldr r10, [r1]
- tst r10, #0x2 ; Power-Off reset Check
- beq %F2 ; if not wakeup from PowerOffmode
- ; goto Watchdog reset test.
- b %F3 ; if wakeup from PowerOff mode
- ; goto Power-up code.
- ; Watchdog reset
- 2
- tst r10, #0x4 ; In case of the wake-up from Watchdog reset,
- ; go to SDRAM start address(0x3020_0000)
- b %F4 ; If not wakeup from Watchdog reset,
- beq %F4 ; If not wakeup from Watchdog reset,
- ; goto Normal Mode.
- mov r0, #4
- str r0, [r1] ; Clear the GSTATUS2. Because same code is located in memory address.
- ; Set memory control registers
- add r0, pc, #SMRDATA - (. + 8)
- ldr r1, = BWSCON ; BWSCON Address
- add r2, r0, #52 ; End address of SMRDATA
- loop0
- ldr r3, [r0], #4
- str r3, [r1], #4
- cmp r2, r0
- bne loop0
- mov r1, #256
- loop1
- subs r1, r1, #1 ; wait until the SelfRefresh is released.
- bne loop1
- ldr r2, =0x201000 ; offset into the RAM
- add r2, r2, #0x30000000 ; add physical base
- mov pc, r2 ; & jump to StartUp address
- b .
- ; Case of Power-off reset
- 3
- ldr r1, =MISCCR ; MISCCR's Bit 17, 18, 19 -> 0
- ldr r0, [r1]
- bic r0, r0, #(3 << 17)
- str r0, [r1]
- ; - - - - - - - - - - - - - - - - - - - - - - -
- ; Add for Power Management
- ; :::::::::::::::::::::::::::::::::::::::::::::
- 4
- add r0, pc, #SMRDATA - (. + 8)
- ldr r1, = BWSCON ; BWSCON Address
- add r2, r0, #52 ; End address of SMRDATA
- 1
- ldr r3, [r0], #4
- str r3, [r1], #4
- cmp r2, r0
- bne %B1
- ; :::::::::::::::::::::::::::::::::::::::::::::
- ; Add for Power Management
- ; - - - - - - - - - - - - - - - - - - - - - - -
- tst r10, #0x2 ; Power-Off reset check
- beq BringUpWinCE ; Normal Mode Booting
- ; Recover Process : Starting Point
- ldr r1, =GSTATUS2 ; Determine Booting Mode
- ldr r10, [r1]
- str r10, [r1] ; Clear Booting Mode
- ; 1. Checksum Calculation saved Data
- ldr r5, =SLEEPDATA_BASE_PHYSICAL ; pointer to physical address of reserved Sleep mode info data structure
- mov r3, r5 ; pointer for checksum calculation
- mov r2, #0
- ldr r0, =SLEEPDATA_SIZE ; get size of data structure to do checksum on
- 40
- ldr r1, [r3], #4 ; pointer to SLEEPDATA
- and r1, r1, #0x1
- mov r1, r1, LSL #31
- orr r1, r1, r1, LSR #1
- add r2, r2, r1
- subs r0, r0, #1 ; dec the count
- bne %b40 ; loop till done
- ldr r0,=GSTATUS3
- ldr r3, [r0] ; get the Sleep data checksum from the Power Manager Scratch pad register
- teq r2, r3 ; compare to what we saved before going to sleep
- ; bne BringUpWinCE ; bad news - do a cold boot - If emergency power off case, normal booting.
- bne JumpToRAM ; bad news - do a cold boot - If emergency power off case, normal booting.
- b MMUENABLE
- JumpToRAM
- ldr r2, =0x201000 ; offset into the RAM
- ldr r3, =0x30000000 ; add physical base
- add r2, r2, r3
- mov pc, r2 ; & jump to StartUp address
- MMUENABLE
- ; 2. MMU Enable
- ldr r10, [r5, #SleepState_MMUDOMAIN] ; load the MMU domain access info
- ldr r9, [r5, #SleepState_MMUTTB] ; load the MMU TTB info
- ldr r8, [r5, #SleepState_MMUCTL] ; load the MMU control info
- ldr r7, [r5, #SleepState_WakeAddr] ; load the LR address
- nop
- nop
- nop
- nop
- nop
- ; if software reset
- mov r1, #0x38000000
- teq r1, r7
- bne %f1
- bl BringUpWinCE
- ; wakeup routine
- 1
- mcr p15, 0, r10, c3, c0, 0 ; setup access to domain 0
- mcr p15, 0, r9, c2, c0, 0 ; PT address
- mcr p15, 0, r0, c8, c7, 0 ; flush I+D TLBs
- mcr p15, 0, r8, c1, c0, 0 ; restore MMU control
- ; 3. Jump to Kernel Image's fw.s(Awake_address)
- mov pc, r7 ; & jump to new virtual address (back up Power management stack)
- nop
- ; - - - - - - - - - - - - - - - - - - - - - - -
- ; Add for Power Management
- ; :::::::::::::::::::::::::::::::::::::::::::::
- BringUpWinCE
- ldr r0, = GPFDAT
- mov r1, #0x60
- str r1, [r0]
- add r0, pc, #OEMAddressTable - (. + 8)
- bl KernelStart
- LTORG
- SMRDATA DATA
- DCD (0+(B1_BWSCON<<4)+(B2_BWSCON<<8)+(B3_BWSCON<<12)+(B4_BWSCON<<16)+(B5_BWSCON<<20)+(B6_BWSCON<<24)+(B7_BWSCON<<28))
- DCD ((B0_Tacs<<13)+(B0_Tcos<<11)+(B0_Tacc<<8)+(B0_Tcoh<<6)+(B0_Tah<<4)+(B0_Tacp<<2)+(B0_PMC)) ;GCS0
- DCD ((B1_Tacs<<13)+(B1_Tcos<<11)+(B1_Tacc<<8)+(B1_Tcoh<<6)+(B1_Tah<<4)+(B1_Tacp<<2)+(B1_PMC)) ;GCS1
- DCD ((B2_Tacs<<13)+(B2_Tcos<<11)+(B2_Tacc<<8)+(B2_Tcoh<<6)+(B2_Tah<<4)+(B2_Tacp<<2)+(B2_PMC)) ;GCS2
- DCD ((B3_Tacs<<13)+(B3_Tcos<<11)+(B3_Tacc<<8)+(B3_Tcoh<<6)+(B3_Tah<<4)+(B3_Tacp<<2)+(B3_PMC)) ;GCS3
- DCD ((B4_Tacs<<13)+(B4_Tcos<<11)+(B4_Tacc<<8)+(B4_Tcoh<<6)+(B4_Tah<<4)+(B4_Tacp<<2)+(B4_PMC)) ;GCS4
- DCD ((B5_Tacs<<13)+(B5_Tcos<<11)+(B5_Tacc<<8)+(B5_Tcoh<<6)+(B5_Tah<<4)+(B5_Tacp<<2)+(B5_PMC)) ;GCS5
- DCD ((B6_MT<<15)+(B6_Trcd<<2)+(B6_SCAN)) ;GCS6
- DCD ((B7_MT<<15)+(B7_Trcd<<2)+(B7_SCAN)) ;GCS7
- DCD ((REFEN<<23)+(TREFMD<<22)+(Trp<<20)+(Trc<<18)+(Tchr<<16)+REFCNT)
- DCD 0xB2 ;SCLK power saving mode, BANKSIZE 128M/128M
- DCD 0x20 ;MRSR6 CL=3clk
- DCD 0x20 ;MRSR7
- ; DCD 0xB2 ;SCLK power saving mode, BANKSIZE 128M/128M
- ; DCD 0x30 ;MRSR6 CL=3clk
- ; DCD 0x30 ;MRSR7
- INCLUDE map.a
- TEXTAREA
- ;**
- ; * CPUPowerWDReset - Software reset routine. Use watchdog timer and SDRAM to self-refresh mode.
- ; *
- ; * Entry none
- ; * Exit none
- ; * Uses r0-r3
- ; *
- LEAF_ENTRY CPUPowerWDReset
- ; VLED_ON 0xb
- ;Watchdog reset enable.
- ldr r1, =vWTCON
- ldr r0, [r1]
- orr r0, r0, #(1<<5) ; Enable watchdog timer.
- str r0, [r1]
- ldr r0, =vREFRESH
- ldr r1, [r0] ; r1=rREFRESH
- orr r1, r1, #(1 << 22)
- ;Set memory control self-refersh
- ldr r0,=vREFRESH
- ldr r3,[r0] ;r3=rREFRESH, may fill TLB
- orr r3, r3, #BIT_SELFREFRESH
- b %F1
- ALIGN 32 ;The following instructions will be in I-Cache
- 1
- str r3, [r0] ;Enable SDRAM self-refresh
- b .
- ;**
- ; * CPUPowerReset - Software reset routine. Just jump to StartUp in this file.
- ; *
- ; * Entry none
- ; * Exit none
- ; * Uses r0-r3
- ; *
- LEAF_ENTRY CPUPowerReset
- ldr r3, =SLEEPDATA_BASE_VIRTUAL ; base of Sleep mode storage
- mov r2, #0x38000000 ; store Virtual return address
- str r2, [r3], #4
- ; Disable MMU
- ldr r2, = PhysicalStart
- ldr r3, = (0x8C000000 - 0x30000000)
- sub r2, r2, r3
- mov r1, #0x0070 ; Disable MMU
- mcr p15, 0, r1, c1, c0, 0
- nop
- mov pc, r2 ; Jump to PStart
- nop
- ; MMU & caches now disabled.
- PhysicalStart
- bl ARMClearUTLB
- bl ARMFlushICache
- ldr r0, = (DCACHE_LINES_PER_SET - 1)
- ldr r1, = (DCACHE_NUM_SETS - 1)
- ldr r2, = DCACHE_SET_INDEX_BIT
- ldr r3, = DCACHE_LINE_SIZE
- bl ARMFlushDCache
- ldr r2, =0x201000 ; offset into the RAM
- ldr r3, =0x30000000 ; add physical base
- add r2, r2, r3
- mov pc, r2 ; & jump to StartUp address
- ;**
- ; * EmergencyCPUPowerOff - Emergency condition ( fast poweroff ).
- ; *
- ; * Entry none
- ; * Exit none
- ; * Uses r0-r3
- ; *
- LEAF_ENTRY EmergencyCPUPowerOff
- ; 1. Push SVC state onto our stack
- stmdb sp!, {r4-r12}
- stmdb sp!, {lr}
- ; 2. Save MMU & CPU Register to RAM
- ldr r3, =SLEEPDATA_BASE_VIRTUAL ; base of Sleep mode storage
- ; ldr r2, =Awake_address ; store Virtual return address
- ldr r2, =0xAC201000 ; store Virtual return address
- str r2, [r3], #4
- mrc p15, 0, r2, c1, c0, 0 ; load r2 with MMU Control
- ldr r0, =MMU_CTL_MASK ; mask off the undefined bits
- bic r2, r2, r0
- str r2, [r3], #4 ; store MMU Control data
- mrc p15, 0, r2, c2, c0, 0 ; load r2 with TTB address.
- ldr r0, =MMU_TTB_MASK ; mask off the undefined bits
- bic r2, r2, r0
- str r2, [r3], #4 ; store TTB address
- mrc p15, 0, r2, c3, c0, 0 ; load r2 with domain access control.
- str r2, [r3], #4 ; store domain access control
- str sp, [r3], #4 ; store SVC stack pointer
- mrs r2, spsr
- str r2, [r3], #4 ; store SVC status register
- mov r1, #Mode_FIQ:OR:I_Bit:OR:F_Bit ; Enter FIQ mode, no interrupts
- msr cpsr, r1
- mrs r2, spsr
- stmia r3!, {r2, r8-r12, sp, lr} ; store the FIQ mode registers
- mov r1, #Mode_ABT:OR:I_Bit:OR:F_Bit ; Enter ABT mode, no interrupts
- msr cpsr, r1
- mrs r0, spsr
- stmia r3!, {r0, sp, lr} ; store the ABT mode Registers
- mov r1, #Mode_IRQ:OR:I_Bit:OR:F_Bit ; Enter IRQ mode, no interrupts
- msr cpsr, r1
- mrs r0, spsr
- stmia r3!, {r0, sp, lr} ; store the IRQ Mode Registers
- mov r1, #Mode_UND:OR:I_Bit:OR:F_Bit ; Enter UND mode, no interrupts
- msr cpsr, r1
- mrs r0, spsr
- stmia r3!, {r0, sp, lr} ; store the UND mode Registers
- mov r1, #Mode_SYS:OR:I_Bit:OR:F_Bit ; Enter SYS mode, no interrupts
- msr cpsr, r1
- stmia r3!, {sp, lr} ; store the SYS mode Registers
- mov r1, #Mode_SVC:OR:I_Bit:OR:F_Bit ; Back to SVC mode, no interrupts
- msr cpsr, r1
- ; 3. do Checksum on the Sleepdata
- [ {FALSE}
- ldr r3, =SLEEPDATA_BASE_VIRTUAL ; get pointer to SLEEPDATA
- mov r2, #0
- ldr r0, =SLEEPDATA_SIZE ; get size of data structure (in words)
- 30
- ldr r1, [r3], #4
- and r1, r1, #0x1
- mov r1, r1, LSL #31
- orr r1, r1, r1, LSR #1
- add r2, r2, r1
- subs r0, r0, #1
- bne %b30
- ]
- ldr r0, =vGPIOBASE
- str r2, [r0, #oGSTATUS3] ; Store in Power Manager Scratch pad register
- ; 4. Interrupt Disable
- ldr r0, =vINTBASE
- mvn r2, #0
- str r2, [r0, #oINTMSK]
- str r2, [r0, #oSRCPND]
- str r2, [r0, #oINTPND]
- ; 5. Cache Flush
- [ {FALSE}
- bl ARMClearUTLB
- bl ARMFlushICache
- ldr r0, = (DCACHE_LINES_PER_SET - 1)
- ldr r1, = (DCACHE_NUM_SETS - 1)
- ldr r2, = DCACHE_SET_INDEX_BIT
- ldr r3, = DCACHE_LINE_SIZE
- bl ARMFlushDCache
- ]
- ; 6. Setting Wakeup External Interrupt(EINT0,1,2) Mode
- ldr r0, =vGPIOBASE
- ldr r1, =0x550a
- str r1, [r0, #oGPFCON]
- ; ldr r1, =0x55550100
- ; str r1, [r0, #oGPGCON]
- ; 7. Go to Power-Off Mode
- ldr r0, =vMISCCR
- ldr r0, [r0]
- ldr r0, =vCLKCON
- ldr r0, [r0]
- ldr r0, =vREFRESH
- ldr r1, [r0] ; r1=rREFRESH
- orr r1, r1, #(1 << 22)
- ldr r2, =vMISCCR
- ldr r3, [r2]
- orr r3, r3, #(3<<17) ; Make sure that SCLK0:SCLK->0, SCLK1:SCLK->0, SCKE=L during boot-up
- ldr r4, =vCLKCON
- ldr r5, =0x7fff8 ; Power Off Mode
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ; Sometimes it is not working in cache mode. So I modify to jump to ROM area.
- ldr r6, =0x92000000 ; make address to 0x9200 0020
- add r6, r6, #0x20 ;
- mov pc, r6 ; jump to Power off code in ROM
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- b SelfRefreshAndPowerOff2
- ALIGN 32 ; for I-Cache Line(32Byte, 8 Word)
- SelfRefreshAndPowerOff2 ; run with Instruction Cache's code
- str r1, [r0] ; Enable SDRAM self-refresh
- str r3, [r2] ; MISCCR Setting
- str r5, [r4] ; Power Off !!
- b .
- LTORG
- ;**
- ; * CPUPowerOff - OFF button handler(Called from OEMPowerOff() in cfw.c)
- ; * This routine is invoked when the OFF button is pressed. It is responsible
- ; * for any final power off state and putting the cpu into standby.
- ; *
- ; * Entry none
- ; * Exit none
- ; * Uses r0-r3
- ; *
- LEAF_ENTRY CPUPowerOff
- ; 1. Push SVC state onto our stack
- stmdb sp!, {r4-r12}
- stmdb sp!, {lr}
- ; VLED_ON 0x0
- ; 2. Save MMU & CPU Register to RAM
- ldr r3, =SLEEPDATA_BASE_VIRTUAL ; base of Sleep mode storage
- ldr r2, =Awake_address ; store Virtual return address
- str r2, [r3], #4
- mrc p15, 0, r2, c1, c0, 0 ; load r2 with MMU Control
- ldr r0, =MMU_CTL_MASK ; mask off the undefined bits
- bic r2, r2, r0
- str r2, [r3], #4 ; store MMU Control data
- mrc p15, 0, r2, c2, c0, 0 ; load r2 with TTB address.
- ldr r0, =MMU_TTB_MASK ; mask off the undefined bits
- bic r2, r2, r0
- str r2, [r3], #4 ; store TTB address
- mrc p15, 0, r2, c3, c0, 0 ; load r2 with domain access control.
- str r2, [r3], #4 ; store domain access control
- str sp, [r3], #4 ; store SVC stack pointer
- mrs r2, spsr
- str r2, [r3], #4 ; store SVC status register
- mov r1, #Mode_FIQ:OR:I_Bit:OR:F_Bit ; Enter FIQ mode, no interrupts
- msr cpsr, r1
- mrs r2, spsr
- stmia r3!, {r2, r8-r12, sp, lr} ; store the FIQ mode registers
- mov r1, #Mode_ABT:OR:I_Bit:OR:F_Bit ; Enter ABT mode, no interrupts
- msr cpsr, r1
- mrs r0, spsr
- stmia r3!, {r0, sp, lr} ; store the ABT mode Registers
- mov r1, #Mode_IRQ:OR:I_Bit:OR:F_Bit ; Enter IRQ mode, no interrupts
- msr cpsr, r1
- mrs r0, spsr
- stmia r3!, {r0, sp, lr} ; store the IRQ Mode Registers
- mov r1, #Mode_UND:OR:I_Bit:OR:F_Bit ; Enter UND mode, no interrupts
- msr cpsr, r1
- mrs r0, spsr
- stmia r3!, {r0, sp, lr} ; store the UND mode Registers
- mov r1, #Mode_SYS:OR:I_Bit:OR:F_Bit ; Enter SYS mode, no interrupts
- msr cpsr, r1
- stmia r3!, {sp, lr} ; store the SYS mode Registers
- mov r1, #Mode_SVC:OR:I_Bit:OR:F_Bit ; Back to SVC mode, no interrupts
- msr cpsr, r1
- ; 3. do Checksum on the Sleepdata
- ldr r3, =SLEEPDATA_BASE_VIRTUAL ; get pointer to SLEEPDATA
- mov r2, #0
- ldr r0, =SLEEPDATA_SIZE ; get size of data structure (in words)
- 30
- ldr r1, [r3], #4
- and r1, r1, #0x1
- mov r1, r1, LSL #31
- orr r1, r1, r1, LSR #1
- add r2, r2, r1
- subs r0, r0, #1
- bne %b30
- ldr r0, =vGPIOBASE
- str r2, [r0, #oGSTATUS3] ; Store in Power Manager Scratch pad register
- ; 4. Interrupt Disable
- ldr r0, =vINTBASE
- mvn r2, #0
- str r2, [r0, #oINTMSK]
- str r2, [r0, #oSRCPND]
- str r2, [r0, #oINTPND]
- ; 5. Cache Flush
- bl ARMClearUTLB
- bl ARMFlushICache
- ldr r0, = (DCACHE_LINES_PER_SET - 1)
- ldr r1, = (DCACHE_NUM_SETS - 1)
- ldr r2, = DCACHE_SET_INDEX_BIT
- ldr r3, = DCACHE_LINE_SIZE
- bl ARMFlushDCache
- ; 6. Setting Wakeup External Interrupt(EINT0,1,2) Mode
- ldr r0, =vGPIOBASE
- ldr r1, =0x550a
- str r1, [r0, #oGPFCON]
- ; ldr r1, =0x55550100
- ; str r1, [r0, #oGPGCON]
- ; 7. Go to Power-Off Mode
- ldr r0, =vMISCCR ; hit the TLB
- ldr r0, [r0]
- ldr r0, =vCLKCON
- ldr r0, [r0]
- ldr r0, =vREFRESH
- ldr r1, [r0] ; r1=rREFRESH
- orr r1, r1, #(1 << 22)
- ldr r2, =vMISCCR
- ldr r3, [r2]
- orr r3, r3, #(3<<17) ; Make sure that SCLK0:SCLK->0, SCLK1:SCLK->0, SCKE=L during boot-up
- bic r3, r3, #(7<<20)
- orr r3, r3, #(6<<20)
- ldr r4, =vCLKCON
- ldr r5, =0x7fff8 ; Power Off Mode
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ; Sometimes it is not working in cache mode. So I modify to jump to ROM area.
- ldr r6, =0x92000000 ; make address to 0x9200 0020
- add r6, r6, #0x20 ;
- mov pc, r6 ; jump to Power off code in ROM
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- b SelfRefreshAndPowerOff
- ALIGN 32 ; for I-Cache Line(32Byte, 8 Word)
- SelfRefreshAndPowerOff ; run with Instruction Cache's code
- str r1, [r0] ; Enable SDRAM self-refresh
- str r3, [r2] ; MISCCR Setting
- str r5, [r4] ; Power Off !!
- b .
- LTORG
- ; This point is called from EBOOT's startup code(MMU is enabled)
- ; in this routine, left information(REGs, INTMSK, INTSUBMSK ...)
- Awake_address
- ; 1. Recover CPU Registers
- ldr r3, =SLEEPDATA_BASE_VIRTUAL ; Sleep mode information data structure
- add r2, r3, #SleepState_FIQ_SPSR
- mov r1, #Mode_FIQ:OR:I_Bit:OR:F_Bit ; Enter FIQ mode, no interrupts - also FIQ
- msr cpsr, r1
- ldr r0, [r2], #4
- msr spsr, r0
- ldr r8, [r2], #4
- ldr r9, [r2], #4
- ldr r10, [r2], #4
- ldr r11, [r2], #4
- ldr r12, [r2], #4
- ldr sp, [r2], #4
- ldr lr, [r2], #4
- mov r1, #Mode_ABT:OR:I_Bit ; Enter ABT mode, no interrupts
- msr cpsr, r1
- ldr r0, [r2], #4
- msr spsr, r0
- ldr sp, [r2], #4
- ldr lr, [r2], #4
- mov r1, #Mode_IRQ:OR:I_Bit ; Enter IRQ mode, no interrupts
- msr cpsr, r1
- ldr r0, [r2], #4
- msr spsr, r0
- ldr sp, [r2], #4
- ldr lr, [r2], #4
- mov r1, #Mode_UND:OR:I_Bit ; Enter UND mode, no interrupts
- msr cpsr, r1
- ldr r0, [r2], #4
- msr spsr, r0
- ldr sp, [r2], #4
- ldr lr, [r2], #4
- mov r1, #Mode_SYS:OR:I_Bit ; Enter SYS mode, no interrupts
- msr cpsr, r1
- ldr sp, [r2], #4
- ldr lr, [r2]
- mov r1, #Mode_SVC:OR:I_Bit ; Enter SVC mode, no interrupts - FIQ is available
- msr cpsr, r1
- ldr r0, [r3, #SleepState_SVC_SPSR]
- msr spsr, r0
- ; 2. Recover Last mode's REG's, & go back to caller of CPUPowerOff()
- ldr sp, [r3, #SleepState_SVC_SP]
- ldr lr, [sp], #4
- ldmia sp!, {r4-r12}
- mov pc, lr ; and now back to our sponsors
- END