When a push-button is released and PA13/PA14 are defined as input (high-Z)
the LED should not be active as the circuit is open but a small current
leak through PCB or push-button close the circuit and allows a small LED
bias giving erroneous level voltage.
So it is recommended to activate an internal pull-up in order to clearly
fix the voltage at PA13/PA14 when button is released and to wait
a short delay before to read the GPIO value only when the pull-up is
correctly configured.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Remove the mmc alias no more required as the sequence number
of mmc device is used for boot_instance.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Since commit f13ff88b61 ("gpio: stm32: add ops set_dir_flags")
the gpio flags are supported by stm32 pinctrl driver.
The cd-gpios is correctly handle in U-Boot and the patch on the
device tree can be removed.
This reverts commit 792919241b.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Save the environment at the end of the U-Boot partition, the GPT
partition named "ssbl" in SD card or eMMC and avoid requirements
on the "bootfs" file system generated via specific raw tools
(like wic and genimage).
With the previous configuration of the U-Boot environment saved in ext4
file, U-Boot need to create/modify the file uenv.txt in the ext4 file
system; so this EXT4 file system need to be generated without some
functionality, like metadata_csum and dir_index, because they are not
supported by U-Boot.
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This patch allows to switch the CPU frequency to 800MHz on the
ST Microelectronics board (DK1/DK2 and EV1) or dh electronics SOM
using the STM32MP15x SOC and when it is supported by the HW
(for STM32MP15xD and STM32MP15xF).
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
The cd-gpios with (GPIO_ACTIVE_LOW | GPIO_PULL_UP) gpio is thus far
unsupported, reinstate the old cd-gpios behavior until this handling
is fully implemented. This avoid potential issue for SDCard boot:
the card detect fails with floating gpio.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Add OP-TEE firmware node in stm32mp15 U-Boot DTSI. This node is
needed since commit [1] that changed U-Boot/stm32mp15 to detect
OP-TEE availability by probing the resource instead of relying on
U-Boot configuration. The software sequence implemented by [1] is
fine but U-Boot DTS/DTSI files were not updated accordingly since,
hence OP-TEE presence is never detected by U-Boot, preventing Linux
kernel from using OP-TEE resources.
For consistency and to synchronize stm32mp15 DTSI files (excluding
U-Boot specific DTSI files) with the Linux kernel ones, this change
also moves the OP-TEE reserved memory nodes from board generic DTSI
files to U-Boot specific board DTSI files.
Link: [1] commit 43df0a159d ("stm32mp1: dynamically detect op-tee presence")
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Force boot-led ON and no more rely on default-state.
This patch avoid device-tree modification for U-Boot.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit manages diversity for STM32M15x SOCs with:
- dedicated files to support all STM32MP15 SOCs family.
The differences between those SOCs are:
-STM32MP151 [1]: common file.
-STM32MP153 [2]: STM32MP151 + CANs + a second CortexA7-CPU.
-STM32MP157 [3]: STM32MP153 + DSI + GPU.
- new files to manage security diversity on STM32MP15x SOCs.
On STM32MP15xY, "Y" gives information:
-Y = A means no cryp IP and no secure boot.
-Y = C means cryp IP + secure boot.
- stm32mp157 pinctrl files to better manage package diversity.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Fix the following DT dtc warnings for stm32mp1 boards:
Warning (unit_address_vs_reg): /soc/rcc@50000000/st,pll@0:
node has a unit name, but no reg property
Warning (unit_address_vs_reg): /soc/rcc@50000000/st,pll@1:
node has a unit name, but no reg property
Warning (unit_address_vs_reg): /soc/rcc@50000000/st,pll@2:
node has a unit name, but no reg property
Warning (unit_address_vs_reg): /soc/rcc@50000000/st,pll@3:
node has a unit name, but no reg property
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
LTDC modifies the clock frequency to adapt it to the display. Such
frequency change is not detected by the FDCAN driver that instead
cache the value at probe and pretend to use it later.
Keep the LTDC alone on PLL4_Q by moving the FDCAN to PLL4_R.
Signed-off-by: Antonio Borneo <antonio.borneo@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Update the sdmmc2 node for eMMC support on eval board stm32mp157c-ev1.
- update slew-rate for pin configuration
- update "vqmmc-supply"
- remove "st,sig-dir"
- add mandatory "pinctrl-names"
- add "mmc-ddr-3_3v"
This patch solve the eMMC detection issue for command "mmc dev 1".
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Avoid U-Boot auto-boot interruption for line break detection
on console when the RX line connected to STLINK is floating
(-IO error in getc cause by framing error and testc return 1)
Same workaround is applied on all the STMicroelectonics board.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Synchronize device tree with v5.2-rc4 label and
update the associated u-boot dtsi.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Tested-by: Pierre-Jean Texier <pjtexier@koncepto.io>
This patch synchronizes U-boot DT with kernel one
This is based on https://patchwork.kernel.org/cover/10797115/
This patch adds initial support of STM32MP157 discovery boards:
- Add support of stm32mp157a discovery1 board (part number: STM32MP157A-DK1).
This board embeds a STM32MP157a SOC with AC package (TFBGA361, 148 ios)
and 512MB of DDR3. Several connections are available on this boards:
4*USB2.0, 1*USB2.0 typeC, SDcard, RJ45, HDMI, Arduino connector, ...
- Add support of stm32mp157c discovery2 board (part number: STM32MP157C-DK2).
This board is a "super-set" of stm32mp157a-dk1. A display panel (otm8009a)
and Murata wifi/BT combo is added.
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
- Add st,digbypass on clk_hse node (needed for board rev.C)
- MLAHB/AHB max frequency increased from 200 to 209MHz, with:
- PLL3P set to 208.8MHz for MCU sub-system
- PLL3Q set to 24.57MHz for 48kHz SAI/SPI2S
- PLL3R set to 11.29MHz for 44.1kHz SAI/SPI2S
- PLL4P set to 99MHz for SDMMC and SPDIFRX
- PLL4Q set to 74.25MHz for EVAL board
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This patch add the 4 LED available on the ED1 board and activated
gpio led driver.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have multiple licenses (in
these cases, dual license) declared in the SPDX-License-Identifier tag.
In this case we change from listing "LICENSE-A LICENSE-B" or "LICENSE-A
or LICENSE-B" or "(LICENSE-A OR LICENSE-B)" to "LICENSE-A OR LICENSE-B"
as per the Linux Kernel style document. Note that parenthesis are
allowed so when they were used before we continue to use them.
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
No more use static frequency HSI = 64MHz for STGEN clock
but HSE (with higher accurency) by default.
Need to remove CONFIG_SYS_HZ_CLOCK as arch timer frequency
is provided at boot by BootRom and cp15 cntfrq and modified
during clock tree initialization if needed.
When HSI is no more used by any device, this internal
oscillator can be switched off to reduce consumption.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Add command GPT support
Add EMMC boot support
Add the 2 other SDMMC instances for ED1:
- SDMMC2 = mmc 1, eMMC on the ED1 board
- SDMMC3 = extension connector, deactivated by default
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Add minimal devicetree for STM32MP157C-ED1 board,
with only the devices to allow boot from SDCARD:
- RCC for clock and reset
- UART4 for console
- I2C and PMIC
- DDR
- SDMMC0 for SDCard
Waiting Kernel upstream for alignment.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
