1 # SPDX-License-Identifier: GPL-2.0-or-later
3 # This is an STM32L496G discovery board with a single STM32L496AGI6 chip.
4 # http://www.st.com/en/evaluation-tools/32l496gdiscovery.html
6 # This is for using the onboard STLINK
7 source [find interface/stlink.cfg]
9 transport select hla_swd
11 # increase working area to 96KB
12 set WORKAREASIZE 0x18000
17 source [find target/stm32l4x.cfg]
19 # QUADSPI initialization
22 mmw 0x4002104C 0x000001FF 0 ;# RCC_AHB2ENR |= GPIOAEN-GPIOIEN (enable clocks)
23 mmw 0x40021050 0x00000100 0 ;# RCC_AHB3ENR |= QSPIEN (enable clock)
24 sleep 1 ;# Wait for clock startup
26 # PB11: BK1_NCS, PA03: CLK, PA06: BK1_IO3, PA07: BK1_IO2, PB00: BK1_IO1, PB01: BK1_IO0
28 # PA07:AF10:V, PA06:AF10:V, PA03:AF10:V, PB11:AF10:V, PB01:AF10:V, PB00:AF10:V
30 # Port A: PA07:AF10:V, PA06:AF10:V, PA03:AF10:V
31 mmw 0x48000000 0x0000A080 0x00005040 ;# MODER
32 mmw 0x48000008 0x0000F0C0 0x00000000 ;# OSPEEDR
33 mmw 0x48000020 0xAA00A000 0x55005000 ;# AFRL
35 # Port B: PB11:AF10:V, PB01:AF10:V, PB00:AF10:V
36 mmw 0x48000400 0x0080000A 0x00400005 ;# MODER
37 mmw 0x48000408 0x00C0000F 0x00000000 ;# OSPEEDR
38 mmw 0x48000420 0x000000AA 0x00000055 ;# AFRL
39 mmw 0x48000424 0x0000A000 0x00005000 ;# AFRH
41 mww 0xA0001030 0x00001000 ;# QUADSPI_LPTR: deactivate CS after 4096 clocks when FIFO is full
42 mww 0xA0001000 0x01500008 ;# QUADSPI_CR: PRESCALER=1, APMS=1, FTHRES=0, FSEL=0, DFM=0, SSHIFT=0, TCEN=1
43 mww 0xA0001004 0x00160100 ;# QUADSPI_DCR: FSIZE=0x16, CSHT=0x01, CKMODE=0
44 mmw 0xA0001000 0x00000001 0 ;# QUADSPI_CR: EN=1
47 mww 0xA0001014 0x000003F5 ;# QUADSPI_CCR: FMODE=0x0, DMODE=0x0, DCYC=0x0, ADSIZE=0x0, ADMODE=0x0, IMODE=0x3, INSTR=RSTQIO
50 # memory-mapped read mode with 3-byte addresses
51 mww 0xA0001014 0x0D002503 ;# QUADSPI_CCR: FMODE=0x3, DMODE=0x1, DCYC=0x0, ADSIZE=0x2, ADMODE=0x1, IMODE=0x1, INSTR=READ
54 $_TARGETNAME configure -event reset-init {
55 mmw 0x40022000 0x00000004 0x00000003 ;# 4 WS for 72 MHz HCLK
57 mmw 0x40021000 0x00000100 0x00000000 ;# HSI on
58 mww 0x4002100C 0x01002432 ;# 72 MHz: PLLREN=1, PLLM=4, PLLN=36, PLLR=2, HSI
59 mww 0x40021008 0x00008001 ;# always HSI, APB1: /1, APB2: /1
60 mmw 0x40021000 0x01000000 0x00000000 ;# PLL on
62 mmw 0x40021008 0x00000003 0x00000000 ;# switch to PLL