Synchronize stm32h7 device tree with kernel v4.20.
U-boot DT files and pinctrl bindings are updated,
useless nodes are removed and gpio compatible added.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
In order to prepare and ease future DT synchronization with kernel
DT, migrate all U-boot specific nodes/properties/addons to
U-boot DT files.
As sdmmc is not yet supported on kernel side, sdmmc nodes
are located in eval-u-boot and disco-u-boot DT files.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Add pinctrl and sdmmc nodes to add MMC support for
STM32H743 evaluation board.
Evaluation board needs a second pinctrl node
"pinctrl_sdmmc1_level_shifter" to drive a level shifter
on MMC bus.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
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>
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>
