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source [find interface/stlink.cfg]

set CHIPNAME stm32h750vbt6

# enable stmqspi
if {![info exists QUADSPI]} {
    set QUADSPI 1
}

source [find target/stm32h7x.cfg]

# QUADSPI initialization
proc qspi_init {  } {
    global a
    mmw 0x580244E0 0x000007FF 0             ;# RCC_AHB4ENR |= GPIOAEN-GPIOKEN (enable clocks)
    mmw 0x580244D4 0x00004000 0             ;# RCC_AHB3ENR |= QSPIEN (enable clock)
    sleep 1                                 ;# Wait for clock startup

    # PB06:AF10:H, PB02:AF09:H, PD13:AF09:H, PD12:AF09:H, PD11:AF09:H, PE02:AF09:H
    # Port B: PB06:AF10:H, PB02:AF09:H
    mmw 0x58020400 0x00002020 0x00001010    ;# MODER
    mmw 0x58020408 0x00002020 0x00001010    ;# OSPEEDR
    mmw 0x5802040C 0x00000000 0x00003030    ;# PUPDR
    mmw 0x58020420 0x0A000900 0x05000600    ;# AFRL
    # Port D: PD13:AF09:H, PD12:AF09:H, PD11:AF09:H
    mmw 0x58020C00 0x0A800000 0x05400000    ;# MODER
    mmw 0x58020C08 0x0A800000 0x05400000    ;# OSPEEDR
    mmw 0x58020C0C 0x00000000 0x0FC00000    ;# PUPDR
    mmw 0x58020C24 0x00999000 0x00666000    ;# AFRH
    # Port E: PE02:AF09:H
    mmw 0x58021000 0x00000020 0x00000010    ;# MODER
    mmw 0x58021008 0x00000020 0x00000010    ;# OSPEEDR
    mmw 0x5802100C 0x00000000 0x00000030    ;# PUPDR
    mmw 0x58021020 0x00000900 0x00000600    ;# AFRL

    # correct FSIZE is 0x16, however, this causes trouble when
    # reading the last bytes at end of bank in *memory mapped* mode

    # for single flash mode w25q64jv
                                            ;# 010101010000000000000 0 011000
    mww 0x52005000 0x05500018               ;# QUADSPI_CR: PRESCALER=5, APMS=1, FTHRES=1, FSEL=0, DFM=0, SSHIFT=1, TCEN=1
    mww 0x52005004 0x00160500               ;# QUADSPI_DCR: FSIZE=0x16, CSHT=0x05, CKMODE=0
                                            ;# FSIZE flash的大小。

    mww 0x52005030 0x00001000               ;# QUADSPI_LPTR: deactivate CS after 4096 clocks when FIFO is full
                                            ;# 11010000000000 10 010100000011
    mww 0x52005014 0x0D002503               ;# QUADSPI_CCR: FMODE=0x3, DMODE=0x1, DCYC=0x0, ADSIZE=0x2, ADMODE=0x1, IMODE=0x1
    mmw 0x52005000 0x00000001 0             ;# QUADSPI_CR: EN=1

    # Exit QPI mode
    #mmw 0x52005000 0x00000002 0            ;# QUADSPI_CR: ABORT=1
    #mww 0x52005014 0x000003F5              ;# QUADSPI_CCR: FMODE=0x0, DMODE=0x0, DCYC=0x0, ADSIZE=0x0, ADMODE=0x0, IMODE=0x3, INSTR=Exit QPI
    sleep 1

    # reset flash
    mmw 0x52005000 0x00000002 0             ;# QUADSPI_CR: ABORT=1
    mww 0x52005014 0x00000166               ;# QUADSPI_CCR: FMODE=0x0, DMODE=0x0, DCYC=0x0, ADSIZE=0x0, ADMODE=0x0, IMODE=0x1, INSTR=0x66
    mww 0x52005014 0x00000199               ;# QUADSPI_CCR: FMODE=0x0, DMODE=0x0, DCYC=0x0, ADSIZE=0x0, ADMODE=0x0, IMODE=0x1, INSTR=0x99

    # memory-mapped read mode with 3-byte addresses
    mmw 0x52005000 0x00000002 0             ;# QUADSPI_CR: ABORT=1
                                            ;# 11 11 0 00100 00 11 10 11 01 11101011
    mww 0x52005014 0x0F10EDEB               ;# QUADSPI_CCR: FMODE=0x3, DMODE=0x3, DCYC=0x4, ADSIZE=0x2, ADMODE=0x3, IMODE=0x1, INSTR=READ
    ;mww 0x52005014 0x0D002503
}

$_CHIPNAME.cpu0 configure -event reset-init {
    global QUADSPI

    mmw 0x52002000 0x00000004 0x0000000B    ;# FLASH_ACR: 4 WS for 192 MHZ HCLK

    mmw 0x58024400 0x00000001 0x00000018    ;# RCC_CR: HSIDIV=1, HSI on
    mmw 0x58024410 0x10000000 0xEE000007    ;# RCC_CFGR: MCO2=system, MCO2PRE=8, HSI as system clock
    mww 0x58024418 0x00000040               ;# RCC_D1CFGR: D1CPRE=1, D1PPRE=2, HPRE=1
    mww 0x5802441C 0x00000440               ;# RCC_D2CFGR: D2PPRE2=2, D2PPRE1=2
    mww 0x58024420 0x00000040               ;# RCC_D3CFGR: D3PPRE=2
    mww 0x58024428 0x00000040               ;# RCC_PPLCKSELR: DIVM3=0, DIVM2=0, DIVM1=4, PLLSRC=HSI
    mmw 0x5802442C 0x0001000C 0x00000002    ;# RCC_PLLCFGR: PLL1RGE=8MHz to 16MHz, PLL1VCOSEL=wide
    mww 0x58024430 0x01070217               ;# RCC_PLL1DIVR: 192 MHz: DIVR1=2, DIVQ=8, DIVP1=2, DIVN1=24
    mmw 0x58024400 0x01000000 0             ;# RCC_CR: PLL1ON=1
    sleep 1
    mmw 0x58024410 0x00000003 0             ;# RCC_CFGR: PLL1 as system clock
    sleep 1

    adapter speed 4000

    if { $QUADSPI } {
        qspi_init
    }
}