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Author SHA1 Message Date
Patrice Chotard
a1e384b4d9 ARM: DTS: stm32: adapt stm32h7 dts files for U-boot
This patch adapts stm32h743 disco and eval dts files to match
with U-boot requirements or add features wich are not yet
upstreamed on kernel side :

_ Add RCC clock driver node and update all clocks phandle
  accordingly.

  By default, on kernel side, all clocks was temporarly
  configured as a phandle to timer_clk waiting for a RCC
  clock driver to be available.
  On U-boot side, we now have a dedicated RCC clock driver, we
  can configured all clocks as phandle to this driver.

  All this binding update will be available soon in a kernel tag,
  as all the bindings have been acked by Rob Herring [1].

  [1] http://lkml.iu.edu/hypermail/linux/kernel/1704.0/00935.html

_ Align STM32H7 serial compatible string with the one which will be
  available in next kernel tag. The bindings has been acked by
  Rob Herring [2].
  This compatible string will be usefull to add stm32h7 specific
  feature for this serial driver.

  [2] https://lkml.org/lkml/2017/7/17/739

_ Add gpio compatible and aliases for stm32h743

_ Add FMC sdram node with associated new bindings value to
  manage second bank (ie bank 1).

_ Add missing HSI and CSI oscillators nodes needed
  by STM32H7 RCC clock driver.

  Clock sources could be:
	_ HSE (High Speed External)
	_ HSI (High Speed Internal)
	_ CSI (Low Power Internal)

  These clocks can be used as clocksource in some configuration.
  By default, HSE is selected as clock source.

_ Set HSE to 25Mhz for stm32h743i-disco and eval board

  By default, the external oscillator frequency is defined at
  25 Mhz in SoC stm32h743.dtsi file.
  It has been set at 125 Mhz in kernel DT temporarly waiting for
  RCC clock driver becomes available.

  As in U-boot we got a RCC clock driver, the real value of HSE
  clock can be used.

_ Add "u-boot,dm-pre-reloc" for rcc, fmc, fixed-clock, pinctrl,
  pwrcfg and gpio nodes.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-09-22 07:40:03 -04:00
Patrice Chotard
5fbb2b25ae ARM: DTS: stm32: add stm32h743i-eval files
This file is imported from linux kernel v4.13

Add device tree support for STM32H743 evaluation board.
This board offers :
  _ STM32H743XIH6 microcontroller with 2 Mbytes of
    Flash memory and 1 Mbyte of RAM in TFBGA240+25 package
  _ 5.7” 640x480 TFT color LCD with touch screen
  _ Ethernet compliant with IEEE-802.3-2002
  _ USB OTG HS and FS
  _ I2 C compatible serial interface
  _ RTC with rechargeable backup battery
  _ SAI Audio DAC
  _ ST-MEMS digital microphones
  _ 8-Gbyte (or more) SDIO3.0 interface microSD™ card
  _ 8Mx32bit SDRAM, 1Mx16bit SRAM and 8Mx16bit NOR Flash
  _ 1-Gbit Twin Quad-SPI NOR Flash
  _ Potentiometer
  _ 4 colored user LEDs
  _ Reset, wakeup, tamper or key buttons
  _ Joystick with 4-direction control and selector
  _ Board connectors :
     Power jack
     3 USB with Micro-AB
     RS-232 communications
     Ethernet RJ45
     FD-CAN compliant connection
     Stereo headset jack including analog microphone input
     2 audio jacks for external speakers
     microSD™ card
     JTAG/SWD and ETM trace
   _ Expansion connectors:
     Extension connectors and memory connectors for daughterboard
     or wire-wrap board
   _ Flexible power-supply options: ST-LINK USB VBUS or external
     sources
   _ On-board ST-LINK/V2-1 debugger/programmer with USB re-enumeration
     capability: mass storage, virtual COM port and debug port

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-09-22 07:40:03 -04:00