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List: linux-i2c
Subject: Re: [PATCH 0/4] Fix the i2c/clk bug of stm32 mcu platform
From: Patrice CHOTARD <patrice.chotard () foss ! st ! com>
Date: 2021-05-31 14:58:37
Message-ID: 770ec91e-044b-ec6d-9e5d-0632fb333f43 () foss ! st ! com
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Hi Dillon
On 5/31/21 4:29 PM, Dillon Min wrote:
> Hi Patrice
>
> On Mon, May 31, 2021 at 9:51 PM Patrice CHOTARD
> <patrice.chotard@foss.st.com> wrote:
> >
> >
> >
> > On 5/31/21 3:38 PM, Dillon Min wrote:
> > > Hi Patrice
> > >
> > > Thanks for your time to test my patch.
> > >
> > > On Mon, May 31, 2021 at 9:20 PM Patrice CHOTARD
> > > <patrice.chotard@foss.st.com> wrote:
> > > >
> > > > Hi Dillon
> > > >
> > > >
> > > >
> > > > On 5/14/21 1:02 PM, dillon.minfei@gmail.com wrote:
> > > > > From: Dillon Min <dillon.minfei@gmail.com>
> > > > >
> > > > > This seriese fix three i2c/clk bug for stm32 f4/f7
> > > > > - kernel runing in sdram, i2c driver get data timeout
> > > > > - ltdc clk turn off after kernel console active
> > > > > - kernel hang in set ltdc clock rate
> > > > >
> > > > > clk bug found on stm32f429/f469-disco board
> > > > >
> > > > > Hi Patrice:
> > > > > below is the guide to verify the patch:
> > > > >
> > > > > setup test env with following files(link at below 'files link'):
> > > > > [1] u-boot-dtb.bin
> > > > > [2] rootfs zip file (used in kernel initramfs)
> > > > > [3] u-boot's mkimage to create itb file
> > > > > [4] kernel config file
> > > > > [5] my itb with-or-without i2c patch
> > > > >
> > > > > This patch based on kernel commit:
> > > > > 88b06399c9c766c283e070b022b5ceafa4f63f19
> > > > >
> > > > > Note:
> > > > > panel-ilitek-ili9341.c is the driver which was submitted last year, but not
> > > > > get accepted. it's used to setup touch screen calibration, then test i2c.
> > > > >
> > > > > create itb file(please correct path of 'data'):
> > > > > ./mkimage -f stm32.its stm32.itb
> > > > >
> > > > > HW setup:
> > > > > console:
> > > > > PA9, PA10
> > > > > usart0
> > > > > serial@40011000
> > > > > 115200 8n1
> > > > >
> > > > > -- flash u-boot.bin to stm32f429-disco on PC
> > > > > $ sudo openocd -f board/stm32f429discovery.cfg -c \
> > > > > '{PATH-TO-YOUR-UBOOT}/u-boot-dtb.bin 0x08000000 exit reset'
> > > > >
> > > > > -- setup kernel load bootargs at u-boot
> > > > > U-Boot > setenv bootargs 'console=tty0 console=ttySTM0,115200
> > > > > root=/dev/ram rdinit=/linuxrc loglevel=8 fbcon=rotate:2'
> > > > > U-Boot > loady;bootm
> > > > > (download stm32.dtb or your kernel with itb format, or download zImage, \
> > > > > dtb)
> > > >
> > > >
> > > > Thanks for these informations
> > > > I was able to load and boot DTB and uImage directly in SDRAM as you \
> > > > suggested, i saw Linux logo and kernel log on the STM32F429-disco display,
> > > > but i can't reach the login.
> > > >
> > > > The last kernel log i got is :
> > > >
> > > > Starting kernel ...
> > > >
> > > > [ 0.000000] Booting Linux on physical CPU 0x0
> > > > [ 0.000000] Linux version 5.13.0-rc1-00082-g9dbbd5cb6240-dirty \
> > > > (nxp11987@lmecxl0573.lme1 [ 0.000000] CPU: ARMv7-M [410fc241] revision 1 \
> > > > (ARMv7M), cr=00000000 [ 0.000000] CPU: unknown data cache, unknown \
> > > > instruction cache [ 0.000000] OF: fdt: Machine model: STMicroelectronics \
> > > > STM32F429i-DISCO board [ 0.000000] Zone ranges:
> > > > [ 0.000000] Normal [mem 0x0000000090000000-0x00000000907fffff]
> > > > [ 0.000000] Movable zone start for each node
> > > > [ 0.000000] Early memory node ranges
> > > >
> > > > [...]
> > > >
> > > > [ 2.637564] printk: console [ttySTM0] enabled
> > > > [ 2.747984] panel-ilitek-ili9341 spi0.1: get optional vcc failed
> > > > [ 2.758986] spi_stm32 40015000.spi: driver initialized
> > > > [ 2.795733] i2c /dev entries driver
> > > > [ 2.849955] stmpe-i2c 0-0041: stmpe811 detected, chip id: 0x811
> > > > [ 2.922030] stmpe-ts stmpe-ts: DMA mask not set
> > > > [ 2.965729] input: stmpe-ts as \
> > > > /devices/platform/soc/40005c00.i2c/i2c-0/0-0041/stmpe-ts0 [ 2.991570] \
> > > > stm32f4-i2c 40005c00.i2c: STM32F4 I2C driver registered [ 3.058262] [drm] \
> > > > Initialized stm 1.0.0 20170330 for 40016800.display-controller on min0 [ \
> > > > 3.665951] panel-ilitek-ili9341 spi0.1: initialized display rgb interface [ \
> > > > 3.765208] Console: switching to colour frame buffer device 30x40 [ \
> > > > 4.014269] stm32-display 40016800.display-controller: [drm] fb0: stmdrmfb \
> > > > frame buffere [ 4.212737] Freeing unused kernel memory: 324K
> > > > [ 4.287300] This architecture does not have kernel memory protection.
> > > > [ 4.401202] Run /linuxrc as init process
> > > > [ 4.478622] with arguments:
> > > > [ 4.555069] /linuxrc
> > > > [ 4.595406] with environment:
> > > > [ 4.672213] HOME=/
> > > > [ 4.712511] TERM=linux
> > > > [ 206.785289] random: crng init done
> > >
> > > I guess you didn't add the rootfs to uImage I sent you.
> >
> > I do use your rootfs
> >
> > > Could you post all the logs from u-boot startup to kernel log end.
> >
> >
> > U-Boot 2021.07-rc2 (May 28 2021 - 17:05:35 +0200)
> >
> > DRAM: 8 MiB
> > Flash: 2 MiB
> > Loading Environment from Flash... OK
> > In: serial@40011000
> > Out: serial@40011000
> > Err: serial@40011000
> > Hit any key to stop autoboot: 0
> > U-Boot > setenv bootargs 'console=tty0 console=ttySTM0,115200 root=/dev/ram \
> > rdinit=/lin'
>
> It seems bootargs are broken here.
> should be setenv bootargs 'console=tty0 console=ttySTM0,115200
> root=/dev/ram rdinit=/linuxrc loglevel=8 fbcon=rotate:2'
It's just a copy/paste issue from my minicom window to my mailer,
but the bootargs is correct ;-)
See a correct U-boot/kernel log in attached.
>
> > U-Boot >
> > U-Boot >
> > U-Boot > setenv loadaddr 0x90400000
> > U-Boot > loady
> > ## Ready for binary (ymodem) download to 0x90400000 at 115200 bps...
> > CxyzModem - CRC mode, 156(SOH)/0(STX)/0(CAN) packets, 7 retries
> > ## Total Size = 0x00004cad = 19629 Bytes
> > U-Boot > setenv loadaddr 0x90406000
> > U-Boot > loady
> > ## Ready for binary (ymodem) download to 0x90406000 at 115200 bps...
> > C- CRC mode, 12453(SOH)/0(STX)/0(CAN) packets, 4 retries
> > ## Total Size = 0x00185140 = 1593664 Bytes
> > U-Boot > bootm 0x90406000 - 0x90400000
> > ## Booting kernel from Legacy Image at 90406000 ...
> > Image Name: Linux-5.13.0-rc1-00082-g9dbbd5cb
> > Image Type: ARM Linux Kernel Image (uncompressed)
> > Data Size: 1593600 Bytes = 1.5 MiB
> > Load Address: 90008000
> > Entry Point: 90008000
> > Verifying Checksum ... OK
> > ## Flattened Device Tree blob at 90400000
> > Booting using the fdt blob at 0x90400000
> > Loading Kernel Image
> > Loading Device Tree to 905b9000, end 905c0cac ... OK
> >
> > Starting kernel ...
> >
> > [ 0.000000] Booting Linux on physical CPU 0x0
> > [ 0.000000] Linux version 5.13.0-rc1-00082-g9dbbd5cb6240-dirty \
> > (nxp11987@lmecxl0573.lme1 [ 0.000000] CPU: ARMv7-M [410fc241] revision 1 \
> > (ARMv7M), cr=00000000 [ 0.000000] CPU: unknown data cache, unknown instruction \
> > cache [ 0.000000] OF: fdt: Machine model: STMicroelectronics STM32F429i-DISCO \
> > board [ 0.000000] Zone ranges:
> > [ 0.000000] Normal [mem 0x0000000090000000-0x00000000907fffff]
> > [ 0.000000] Movable zone start for each node
> > [ 0.000000] Early memory node ranges
> > [ 0.000000] node 0: [mem 0x0000000090000000-0x00000000907fffff]
> > [ 0.000000] Initmem setup node 0 [mem 0x0000000090000000-0x00000000907fffff]
> > [ 0.000000] On node 0 totalpages: 2048
> > [ 0.000000] Normal zone: 16 pages used for memmap
> > [ 0.000000] Normal zone: 0 pages reserved
> > [ 0.000000] Normal zone: 2048 pages, LIFO batch:0
> > [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
> > [ 0.000000] pcpu-alloc: [0] 0
> > [ 0.000000] Built 1 zonelists, mobility grouping off. Total pages: 2032
> > [ 0.000000] Kernel command line: console=tty0 console=ttySTM0,115200 \
> > root=/dev/ram rdin2
>
> ditto
same explanation as above, the command line displayed is truncated, but it is the one \
expected.
>
> > [ 0.000000] Dentry cache hash table entries: 1024 (order: 0, 4096 bytes, \
> > linear) [ 0.000000] Inode-cache hash table entries: 1024 (order: 0, 4096 \
> > bytes, linear) [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap \
> > free:off [ 0.000000] Memory: 5264K/8192K available (1372K kernel code, 302K \
> > rwdata, 516K rodata,) [ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, \
> > CPUs=1, Nodes=1 [ 0.000000] rcu: Preemptible hierarchical RCU implementation.
> > [ 0.000000] rcu: RCU event tracing is enabled.
> > [ 0.000000] Trampoline variant of Tasks RCU enabled.
> > [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 \
> > jiffies. [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
> > [ 0.000000] /soc/interrupt-controller@40013c00: bank0
> > [ 0.000000] random: get_random_bytes called from start_kernel+0x203/0x370 with \
> > crng_ini0 [ 0.000000] clocksource: arm_system_timer: mask: 0xffffff \
> > max_cycles: 0xffffff, max_idls [ 0.000000] ARM System timer initialized as \
> > clocksource [ 0.000026] sched_clock: 32 bits at 90MHz, resolution 11ns, wraps \
> > every 23860929530ns [ 0.000665] timer@40000c00: STM32 sched_clock registered
> > [ 0.001275] Switching to timer-based delay loop, resolution 11ns
> > [ 0.001712] timer@40000c00: STM32 delay timer registered
> > [ 0.002253] clocksource: timer@40000c00: mask: 0xffffffff max_cycles: \
> > 0xffffffff, max_is [ 0.003076] /soc/timer@40000c00: STM32 clockevent driver \
> > initialized (32 bits) [ 0.014135] Console: colour dummy device 80x30
> > [ 0.062375] printk: console [tty0] enabled
> > [ 0.063843] Calibrating delay loop (skipped), value calculated using timer \
> > frequency.. ) [ 0.066453] pid_max: default: 4096 minimum: 301
> > [ 0.071393] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, \
> > linear) [ 0.073734] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 \
> > bytes, linear) [ 0.104759] rcu: Hierarchical SRCU implementation.
> > [ 0.111552] devtmpfs: initialized
> > [ 0.339332] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, \
> > max_idle_ns:s [ 0.341835] pinctrl core: initialized pinctrl subsystem
> > [ 0.658423] stm32f429-pinctrl soc:pin-controller: No package detected, use \
> > default one [ 0.680505] stm32f429-pinctrl soc:pin-controller: GPIOA bank added
> > [ 0.689824] stm32f429-pinctrl soc:pin-controller: GPIOB bank added
> > [ 0.699409] stm32f429-pinctrl soc:pin-controller: GPIOC bank added
> > [ 0.708775] stm32f429-pinctrl soc:pin-controller: GPIOD bank added
> > [ 0.718094] stm32f429-pinctrl soc:pin-controller: GPIOE bank added
> > [ 0.727535] stm32f429-pinctrl soc:pin-controller: GPIOF bank added
> > [ 0.736953] stm32f429-pinctrl soc:pin-controller: GPIOG bank added
> > [ 0.746404] stm32f429-pinctrl soc:pin-controller: GPIOH bank added
> > [ 0.756098] stm32f429-pinctrl soc:pin-controller: GPIOI bank added
> > [ 0.765436] stm32f429-pinctrl soc:pin-controller: GPIOJ bank added
> > [ 0.774870] stm32f429-pinctrl soc:pin-controller: GPIOK bank added
> > [ 0.776730] stm32f429-pinctrl soc:pin-controller: Pinctrl STM32 initialized
> > [ 0.997446] stm32-dma 40026000.dma-controller: STM32 DMA driver registered
> > [ 1.029604] stm32-dma 40026400.dma-controller: STM32 DMA driver registered
> > [ 1.043098] clocksource: Switched to clocksource timer@40000c00
> > [ 1.358086] workingset: timestamp_bits=30 max_order=11 bucket_order=0
> > [ 1.632751] io scheduler mq-deadline registered
> > [ 1.634287] io scheduler kyber registered
> > [ 1.650574] STM32 USART driver initialized
> > [ 1.661272] 40011000.serial: ttySTM0 at MMIO 0x40011000 (irq = 34, base_baud = \
> > 5625000)t [ 2.603317] random: fast init done
> > [ 2.637564] printk: console [ttySTM0] enabled
> > [ 2.747984] panel-ilitek-ili9341 spi0.1: get optional vcc failed
> > [ 2.758986] spi_stm32 40015000.spi: driver initialized
> > [ 2.795733] i2c /dev entries driver
> > [ 2.849955] stmpe-i2c 0-0041: stmpe811 detected, chip id: 0x811
> > [ 2.922030] stmpe-ts stmpe-ts: DMA mask not set
> > [ 2.965729] input: stmpe-ts as \
> > /devices/platform/soc/40005c00.i2c/i2c-0/0-0041/stmpe-ts0 [ 2.991570] \
> > stm32f4-i2c 40005c00.i2c: STM32F4 I2C driver registered [ 3.058262] [drm] \
> > Initialized stm 1.0.0 20170330 for 40016800.display-controller on min0 [ \
> > 3.665951] panel-ilitek-ili9341 spi0.1: initialized display rgb interface [ \
> > 3.765208] Console: switching to colour frame buffer device 30x40 [ 4.014269] \
> > stm32-display 40016800.display-controller: [drm] fb0: stmdrmfb frame buffere [ \
> > 4.212737] Freeing unused kernel memory: 324K [ 4.287300] This architecture \
> > does not have kernel memory protection. [ 4.401202] Run /linuxrc as init \
> > process [ 4.478622] with arguments:
> > [ 4.555069] /linuxrc
> > [ 4.595406] with environment:
> > [ 4.672213] HOME=/
> > [ 4.712511] TERM=linux
> > [ 206.785289] random: crng init done
> >
> >
> > >
> > > If possible, you can try my suggestion.
> > > - tar -jxf stm32_rootfs.tar.bz2
> > > - add stm32_rootfs to your kernel config( enable initramfs)
> >
> > As explained above, that's what i did
> >
> > > - make O=YOUR_KERNEL_OUT zImage dtbs LOADADDR=0x90008000
> >
> >
> >
> > > - create itb file (combine dtb and kernel, initramfs) by mkimage
> > > ./mkimage -f stm32.its stm32.itb
> >
> > I didn't use .itb file, but directly uImage loaded @0x90406000 and \
> > stm32f429-disco.dtb loaded @0x90400000
>
> It's fine with manual load dtb and uImage.
>
> >
> > How do you generate .its file ?
>
> I refer to u-boot doc , U-BOOT-SOURCE/doc/uImage.FIT/kernel.its
> you can just change the PATH('data = ' filed) of my stm32.its.
> you can correct bootargs in u-boot, try again
>
> good luck.
>
> Thanks
>
> Best Regards
> Dillon
>
> >
> >
> > > (before above command, make sure you correct stm32.its adapt to your env)
> > >
> > > This process will make u-boot to load the kernel more simple.
> > >
> > > Thanks.
> > >
> > > Best Regards.
> > > Dillon
> > >
> > >
> > > >
> > > >
> > > > I can't test your I2C patch.
> > > >
> > > > Patrice
> > > >
> > > >
> > > > > -- setup ts_calibrate running env on stm32f429-disco
> > > > > / # export TSLIB_CONFFILE=/etc/ts.conf
> > > > > / # export TSLIB_TSDEVICE=/dev/input/event0
> > > > > / # export TSLIB_CONSOLEDEVICE=none
> > > > > / # export TSLIB_FBDEVICE=/dev/fb0
> > > > >
> > > > > -- clear screen
> > > > > / # ./fb
> > > > >
> > > > > -- run ts_calibrate
> > > > > / # ts_calibrate
> > > > > (you can calibrate touchscreen now, and get below errors)
> > > > >
> > > > > [ 113.942087] stmpe-i2c0-0041: failed to read regs 0x52: -110
> > > > > [ 114.063598] stmpe-i2c 0-0041: failed to read reg 0x4b: -16
> > > > > [ 114.185629] stmpe-i2c 0-0041: failed to read reg 0x40: -16
> > > > > [ 114.307257] stmpe-i2c 0-0041: failed to write reg 0xb: -16
> > > > >
> > > > > ...
> > > > > with i2c patch applied, you will find below logs:
> > > > >
> > > > > RAW---------------------> 3164 908 183 118.110884
> > > > > TS_READ_RAW----> x = 3164, y =908, pressure = 183
> > > > > RAW---------------------> 3166 922 126 118.138946
> > > > > TS_READ_RAW----> x = 3166, y = 922, pressure = 126
> > > > > ....
> > > > >
> > > > > files link:
> > > > > https://drive.google.com/drive/folders/1qNbjChcB6UGtKzne2F5x9_WG_sZFyo3o?usp=sharing
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > Dillon Min (4):
> > > > > drm/panel: Add ilitek ili9341 panel driver
> > > > > i2c: stm32f4: Fix stmpe811 get xyz data timeout issue
> > > > > clk: stm32: Fix stm32f429's ltdc driver hang in set clock rate
> > > > > clk: stm32: Fix ltdc's clock turn off by clk_disable_unused() after
> > > > > kernel startup
> > > > >
> > > > > drivers/clk/clk-stm32f4.c | 10 +-
> > > > > drivers/gpu/drm/panel/Kconfig | 12 +
> > > > > drivers/gpu/drm/panel/Makefile | 1 +
> > > > > drivers/gpu/drm/panel/panel-ilitek-ili9341.c | 1285 \
> > > > > ++++++++++++++++++++++++++ drivers/i2c/busses/i2c-stm32f4.c | \
> > > > > 12 +- 5 files changed, 1310 insertions(+), 10 deletions(-)
> > > > > create mode 100755 drivers/gpu/drm/panel/panel-ilitek-ili9341.c
> > > > >
["uboot_kernel_log.txt" (text/plain)]
U-Boot 2021.07-rc2 (May 28 2021 - 17:05:35 +0200) \
\
DRAM: 8 MiB \
Flash: 2 MiB \
Loading Environment from Flash... OK \
In: serial@40011000 \
Out: serial@40011000 \
Err: serial@40011000 \
Hit any key to stop autoboot: 0 \
U-Boot > setenv bootargs 'console=tty0 console=ttySTM0,115200 root=/dev/ram \
rdinit=/linuxrc loglevel=8 fbcon=rotate:2' U-Boot > setenv loadaddr 0x90400000 \
U-Boot > loady \
## Ready for binary (ymodem) download to 0x90400000 at 115200 bps... \
CyzModem - CRC mode, 156(SOH)/0(STX)/0(CAN) packets, 6 retries \
## Total Size = 0x00004cad = 19629 Bytes \
U-Boot > setenv loadaddr 0x90406000 \
U-Boot > loady \
## Ready for binary (ymodem) download to 0x90406000 at 115200 bps... \
CyzModem - CRC mode, 12453(SOH)/0(STX)/0(CAN) packets, 4 retries \
## Total Size = 0x00185140 = 1593664 Bytes \
U-Boot > bootm 0x90406000 - 0x90400000 \
## Booting kernel from Legacy Image at 90406000 ... \
Image Name: Linux-5.13.0-rc1-00082-g9dbbd5cb \
Image Type: ARM Linux Kernel Image (uncompressed) \
Data Size: 1593600 Bytes = 1.5 MiB \
Load Address: 90008000 \
Entry Point: 90008000 \
Verifying Checksum ... OK \
## Flattened Device Tree blob at 90400000 \
Booting using the fdt blob at 0x90400000 \
Loading Kernel Image \
Loading Device Tree to 905b9000, end 905c0cac ... OK \
\
Starting kernel ...
\
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 5.13.0-rc1-00082-g9dbbd5cb6240-dirty \
(nxp11987@lmecxl0573.lme.st.com) (arm-buildroot-uclinux-uclibcgnueabi1 [ 0.000000] \
CPU: ARMv7-M [410fc241] revision 1 (ARMv7M), cr=00000000 [ 0.000000] CPU: unknown \
data cache, unknown instruction cache [ 0.000000] OF: fdt: Machine model: \
STMicroelectronics STM32F429i-DISCO board [ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x0000000090000000-0x00000000907fffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000090000000-0x00000000907fffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000090000000-0x00000000907fffff]
[ 0.000000] On node 0 totalpages: 2048
[ 0.000000] Normal zone: 16 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 2048 pages, LIFO batch:0
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists, mobility grouping off. Total pages: 2032
[ 0.000000] Kernel command line: console=tty0 console=ttySTM0,115200 root=/dev/ram \
rdinit=/linuxrc loglevel=8 fbcon=rotate:2 [ 0.000000] Dentry cache hash table \
entries: 1024 (order: 0, 4096 bytes, linear) [ 0.000000] Inode-cache hash table \
entries: 1024 (order: 0, 4096 bytes, linear) [ 0.000000] mem auto-init: stack:off, \
heap alloc:off, heap free:off [ 0.000000] Memory: 5264K/8192K available (1372K \
kernel code, 302K rwdata, 516K rodata, 324K init, 119K bss, 2928K reserved, 0K cma-) \
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ \
0.000000] rcu: Preemptible hierarchical RCU implementation. [ 0.000000] rcu: \
RCU event tracing is enabled. [ 0.000000] Trampoline variant of Tasks RCU \
enabled. [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 \
jiffies. [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[ 0.000000] /soc/interrupt-controller@40013c00: bank0
[ 0.000000] random: get_random_bytes called from start_kernel+0x203/0x370 with \
crng_init=0 [ 0.000000] clocksource: arm_system_timer: mask: 0xffffff max_cycles: \
0xffffff, max_idle_ns: 331816030 ns [ 0.000000] ARM System timer initialized as \
clocksource [ 0.000026] sched_clock: 32 bits at 90MHz, resolution 11ns, wraps \
every 23860929530ns [ 0.000665] timer@40000c00: STM32 sched_clock registered
[ 0.001275] Switching to timer-based delay loop, resolution 11ns
[ 0.001712] timer@40000c00: STM32 delay timer registered
[ 0.002253] clocksource: timer@40000c00: mask: 0xffffffff max_cycles: 0xffffffff, \
max_idle_ns: 21236227187 ns [ 0.003076] /soc/timer@40000c00: STM32 clockevent \
driver initialized (32 bits) [ 0.014135] Console: colour dummy device 80x30
[ 0.062375] printk: console [tty0] enabled
[ 0.063843] Calibrating delay loop (skipped), value calculated using timer \
frequency.. 180.00 BogoMIPS (lpj=900000) [ 0.066453] pid_max: default: 4096 \
minimum: 301 [ 0.071393] Mount-cache hash table entries: 1024 (order: 0, 4096 \
bytes, linear) [ 0.073734] Mountpoint-cache hash table entries: 1024 (order: 0, \
4096 bytes, linear) [ 0.104759] rcu: Hierarchical SRCU implementation.
[ 0.111552] devtmpfs: initialized
[ 0.339332] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, \
max_idle_ns: 19112604462750000 ns [ 0.341835] pinctrl core: initialized pinctrl \
subsystem [ 0.658423] stm32f429-pinctrl soc:pin-controller: No package detected, \
use default one [ 0.680505] stm32f429-pinctrl soc:pin-controller: GPIOA bank added
[ 0.689824] stm32f429-pinctrl soc:pin-controller: GPIOB bank added
[ 0.699409] stm32f429-pinctrl soc:pin-controller: GPIOC bank added
[ 0.708775] stm32f429-pinctrl soc:pin-controller: GPIOD bank added
[ 0.718094] stm32f429-pinctrl soc:pin-controller: GPIOE bank added
[ 0.727535] stm32f429-pinctrl soc:pin-controller: GPIOF bank added
[ 0.736953] stm32f429-pinctrl soc:pin-controller: GPIOG bank added
[ 0.746404] stm32f429-pinctrl soc:pin-controller: GPIOH bank added
[ 0.756098] stm32f429-pinctrl soc:pin-controller: GPIOI bank added
[ 0.765436] stm32f429-pinctrl soc:pin-controller: GPIOJ bank added
[ 0.774870] stm32f429-pinctrl soc:pin-controller: GPIOK bank added
[ 0.776730] stm32f429-pinctrl soc:pin-controller: Pinctrl STM32 initialized
[ 0.997446] stm32-dma 40026000.dma-controller: STM32 DMA driver registered
[ 1.029604] stm32-dma 40026400.dma-controller: STM32 DMA driver registered
[ 1.043098] clocksource: Switched to clocksource timer@40000c00
[ 1.358086] workingset: timestamp_bits=30 max_order=11 bucket_order=0
[ 1.632751] io scheduler mq-deadline registered
[ 1.634287] io scheduler kyber registered
[ 1.650574] STM32 USART driver initialized
[ 1.661272] 40011000.serial: ttySTM0 at MMIO 0x40011000 (irq = 34, base_baud = \
5625000) is a stm32-usart [ 2.603317] random: fast init done
[ 2.637564] printk: console [ttySTM0] enabled
[ 2.747984] panel-ilitek-ili9341 spi0.1: get optional vcc failed
[ 2.758986] spi_stm32 40015000.spi: driver initialized
[ 2.795733] i2c /dev entries driver
[ 2.849955] stmpe-i2c 0-0041: stmpe811 detected, chip id: 0x811
[ 2.922030] stmpe-ts stmpe-ts: DMA mask not set
[ 2.965729] input: stmpe-ts as \
/devices/platform/soc/40005c00.i2c/i2c-0/0-0041/stmpe-ts/input/input0 [ 2.991570] \
stm32f4-i2c 40005c00.i2c: STM32F4 I2C driver registered [ 3.058262] [drm] \
Initialized stm 1.0.0 20170330 for 40016800.display-controller on minor 0 [ \
3.665951] panel-ilitek-ili9341 spi0.1: initialized display rgb interface [ \
3.765213] Console: switching to colour frame buffer device 30x40 [ 4.014240] \
stm32-display 40016800.display-controller: [drm] fb0: stmdrmfb frame buffer device [ \
4.212714] Freeing unused kernel memory: 324K [ 4.287271] This architecture does \
not have kernel memory protection. [ 4.401197] Run /linuxrc as init process
[ 4.478612] with arguments:
[ 4.555066] /linuxrc
[ 4.595404] with environment:
[ 4.672212] HOME=/
[ 4.712511] TERM=linux
[ 206.785288] random: crng init done
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