tcl/board/stm32h7x_dual_qspi.cfg

   1 # SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 # stm32h754i-disco and stm32h750b-dk dual quad qspi.
   4
   5 # QUADSPI initialization
   6 # qpi: 4-line mode
   7 proc qspi_init { qpi } {
   8         global a
   9         mmw 0x580244E0 0x000007FF 0                             ;# RCC_AHB4ENR |= GPIOAEN-GPIOKEN (enable clocks)
  10         mmw 0x580244D4 0x00004000 0                             ;# RCC_AHB3ENR |= QSPIEN (enable clock)
  11         sleep 1                                                                 ;# Wait for clock startup
  12
  13         # PG06: BK1_NCS, PF10: CLK, PF06: BK1_IO3, PF07: BK1_IO2, PF09: BK1_IO1, PD11: BK1_IO0,
  14         # PG14: BK2_IO3, PG09: BK2_IO2, PH03: BK2_IO1, PH02: BK2_IO0
  15
  16         # PD11:AF09:V, PF10:AF09:V, PF09:AF10:V, PF07:AF09:V, PF06:AF09:V, PG14:AF09:H
  17         # PG09:AF09:V, PG06:AF10:H, PH03:AF09:V, PH02:AF09:V
  18
  19         # Port D: PD11:AF09:V
  20         mmw 0x58020C00 0x00800000 0x00400000    ;# MODER
  21         mmw 0x58020C08 0x00C00000 0x00000000    ;# OSPEEDR
  22         mmw 0x58020C24 0x00009000 0x00006000    ;# AFRH
  23         # Port F: PF10:AF09:V, PF09:AF10:V, PF07:AF09:V, PF06:AF09:V
  24         mmw 0x58021400 0x0028A000 0x00145000    ;# MODER
  25         mmw 0x58021408 0x003CF000 0x00000000    ;# OSPEEDR
  26         mmw 0x58021420 0x99000000 0x66000000    ;# AFRL
  27         mmw 0x58021424 0x000009A0 0x00000650    ;# AFRH
  28         # Port G: PG14:AF09:H, PG09:AF09:V, PG06:AF10:H
  29         mmw 0x58021800 0x20082000 0x10041000    ;# MODER
  30         mmw 0x58021808 0x200C2000 0x10001000    ;# OSPEEDR
  31         mmw 0x58021820 0x0A000000 0x05000000    ;# AFRL
  32         mmw 0x58021824 0x09000090 0x06000060    ;# AFRH
  33         # Port H: PH03:AF09:V, PH02:AF09:V
  34         mmw 0x58021C00 0x000000A0 0x00000050    ;# MODER
  35         mmw 0x58021C08 0x000000F0 0x00000000    ;# OSPEEDR
  36         mmw 0x58021C20 0x00009900 0x00006600    ;# AFRL
  37
  38         # correct FSIZE is 0x1A, however, this causes trouble when
  39         # reading the last bytes at end of bank in *memory mapped* mode
  40
  41         # for dual flash mode 2 * mt25ql512
  42         mww 0x52005000 0x05500058                               ;# QUADSPI_CR: PRESCALER=5, APMS=1, FTHRES=0, FSEL=0, DFM=1, SSHIFT=1, TCEN=1
  43         mww 0x52005004 0x001A0200                               ;# QUADSPI_DCR: FSIZE=0x1A, CSHT=0x02, CKMODE=0
  44
  45         mww 0x52005030 0x00001000                               ;# QUADSPI_LPTR: deactivate CS after 4096 clocks when FIFO is full
  46         mww 0x52005014 0x0D002503                               ;# QUADSPI_CCR: FMODE=0x3, DMODE=0x1, DCYC=0x0, ADSIZE=0x3, ADMODE=0x1, IMODE=0x1
  47         mmw 0x52005000 0x00000001 0                             ;# QUADSPI_CR: EN=1
  48
  49         # Exit QPI mode
  50         mmw 0x52005000 0x00000002 0                             ;# QUADSPI_CR: ABORT=1
  51         mww 0x52005014 0x000003F5                               ;# QUADSPI_CCR: FMODE=0x0, DMODE=0x0, DCYC=0x0, ADSIZE=0x0, ADMODE=0x0, IMODE=0x3, INSTR=Exit QPI
  52         sleep 1
  53
  54         if { $qpi == 1 } {
  55                 # Write Enable
  56                 mmw 0x52005000 0x00000002 0                     ;# QUADSPI_CR: ABORT=1
  57                 mww 0x52005014 0x00000106                       ;# QUADSPI_CCR: FMODE=0x0, DMODE=0x0, DCYC=0x0, ADSIZE=0x0, ADMODE=0x0, IMODE=0x1, INSTR=Write Enable
  58                 sleep 1
  59
  60                 # Configure dummy clocks via volatile configuration register
  61                 mmw 0x52005000 0x00000002 0                     ;# QUADSPI_CR: ABORT=1
  62                 mww 0x52005010 0x00000001                       ;# QUADSPI_DLR: 2 data bytes
  63                 mww 0x52005014 0x01000181                       ;# QUADSPI_CCR: FMODE=0x0, DMODE=0x1, DCYC=0x0, ADSIZE=0x0, ADMODE=0x0, IMODE=0x1, INSTR=Write Volatile Conf. Reg.
  64                 mwh 0x52005020 0xABAB                           ;# QUADSPI_DR: 0xAB 0xAB for 10 dummy clocks
  65                 sleep 1
  66
  67                 # Write Enable
  68                 mmw 0x52005000 0x00000002 0                     ;# QUADSPI_CR: ABORT=1
  69                 mww 0x52005014 0x00000106                       ;# QUADSPI_CCR: FMODE=0x0, DMODE=0x0, DCYC=0x0, ADSIZE=0x0, ADMODE=0x0, IMODE=0x1, INSTR=Write Enable
  70                 sleep 1
  71
  72                 # Enable QPI mode via enhanced volatile configuration register
  73                 mmw 0x52005000 0x00000002 0                     ;# QUADSPI_CR: ABORT=1
  74                 mww 0x52005010 0x00000001                       ;# QUADSPI_DLR: 2 data bytes
  75                 mww 0x52005014 0x01000161                       ;# QUADSPI_CCR: FMODE=0x0, DMODE=0x1, DCYC=0x0, ADSIZE=0x0, ADMODE=0x0, IMODE=0x1, INSTR=Write Enhanced Conf. Reg.
  76                 mwh 0x52005020 0x3F3F                           ;# QUADSPI_DR: 0x3F 0x3F to enable QPI and DPI mode
  77                 sleep 1
  78
  79                 # Enter QPI mode
  80                 mmw 0x52005000 0x00000002 0                     ;# QUADSPI_CR: ABORT=1
  81                 mww 0x52005014 0x00000135                       ;# QUADSPI_CCR: FMODE=0x0, DMODE=0x0, DCYC=0x0, ADSIZE=0x0, ADMODE=0x0, IMODE=0x1, INSTR=Enter QPI
  82                 sleep 1
  83
  84                 # memory-mapped fast read mode with 4-byte addresses and 10 dummy cycles (for read only)
  85                 mmw 0x52005000 0x00000002 0                     ;# QUADSPI_CR: ABORT=1
  86                 mww 0x52005014 0x0F283FEC                       ;# QUADSPI_CCR: FMODE=0x3, DMODE=0x3, DCYC=0xA, ADSIZE=0x3, ADMODE=0x3, IMODE=0x3, INSTR=Fast READ
  87         } else {
  88                 # memory-mapped read mode with 4-byte addresses
  89                 mmw 0x52005000 0x00000002 0                     ;# QUADSPI_CR: ABORT=1
  90                 mww 0x52005014 0x0D003513                       ;# QUADSPI_CCR: FMODE=0x3, DMODE=0x1, DCYC=0x0, ADSIZE=0x3, ADMODE=0x1, IMODE=0x1, INSTR=READ
  91         }
  92 }