Commit graph

41 commits

Author SHA1 Message Date
Lokesh Vutla
f2ef204312 arm: v7R: Add support for MPU
The Memory Protection Unit(MPU) allows to partition memory into regions
and set individual protection attributes for each region. In absence
of MPU a default map[1] will take effect. Add support for configuring
MPU on Cortex-R, by reusing the existing support for Cortex-M processor.

[1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0460d/I1002400.html

Tested-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-05-07 15:53:29 -04:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
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 a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Patrice Chotard
f5bd13ed57 mach-stm32: Use default memory map as background region
On linux kernel side, on STM32F7 and STM32H7 SoCs, DMA requires
uncachable regions. These regions are defined in DT.
Since kernel linux v4.15, on ARMv7-M Cortex, kernel is able
to configure MPU regions depending on DT settings.

As kernel is able to configure MPU, this allows to remove
MPU region settings in bootloader.

On Cortex M processors, MPU allows to use a default memory map.
(see B3.5.4 MPU Control Register, MPU_CTRL in
https://developer.arm.com/products/architecture/m-profile/docs/ddi0403/latest/armv7-m-architecture-reference-manual)
Use the default memory map as background region for all STM32 SoCs
family with an additional MPU region corresponding to the SDRAM area.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13 21:45:37 -04:00
Patrice Chotard
aa5e3e22f4 board: stm32: switch to DM STM32 timer
Use available DM stm32_timer driver instead of dedicated
mach-stm32/stm32fx/timer.c.

Remove all defines or files previously used for timer usage in
arch/arm/include/asm/arch-stm32fx and in arch/arm/mach-stm32/stm32fx

Enable DM STM32_TIMER for STM32F4/F7 and H7.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13 21:45:37 -04:00
Patrice Chotard
a70c05f10a board: stm32: Fix stm32f746-disco boot
Since 'commit af2f44267 ("fdc spl: use different BOARD_INIT MACRO for spl and tpl")'
board stm32f746-disco can't boot.

The macro CONFIG_IS_ENABLED() can't evaluate the value of
CONFIG_SPL_BOARD_INIT as it was defined in include/configs/stm32f746-disco.h
without attributed value.

Moving CONFIG_SPL_BOARD_INIT from stm32f746-disco.h to mach-stm32/Kconfig
fixes this issue.

Fixes: af2f44267 ("fdc spl: use different BOARD_INIT MACRO for spl and tpl")
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-01-29 12:48:30 -05:00
Patrice Chotard
e23b19f4a8 board: stm32: Add stm32f429-evaluation board support
Add stm32f429-evaluation board support.
For more information, please visit:
http://www.st.com/en/evaluation-tools/stm32429i-eval.html

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-01-28 09:39:05 -05:00
Patrice Chotard
aea0af8993 configs: stm32: move config flag from defconfig to Kconfig
Move system flags from defconfig to mach-stm32/Kconfig

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
2018-01-19 15:49:32 -05:00
Patrice Chotard
ae74de0dfd serial: stm32: Rename serial_stm32x7.c to serial_stm32.c
Now this driver is used across stm32f4, stm32f7 and stm32h7
SoCs family, give it a generic name.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
2018-01-19 15:49:32 -05:00
Patrice Chotard
c0cdd5adc8 board: stm32: add stm32f469-discovery board support
This board offers :

 _ STM32F469NIH6 microcontroller featuring 2 Mbytes of Flash memory
   and 324 Kbytes of RAM in BGA216 package
 _ On-board ST-LINK/V2-1 SWD debugger, supporting USB reenumeration capability:
     _ Mbed-enabled (mbed.org)
     _ USB functions: USB virtual COM port, mass storage, debug port
 _ 4 inches 800x480 pixel TFT color LCD with MIPI DSI interface and capacitive
   touch screen
 _ SAI Audio DAC, with a stereo headphone output jack
 _ 3 MEMS microphones
 _ MicroSD card connector
 _ I2C extension connector
 _ 4Mx32bit SDRAM
 _ 128-Mbit Quad-SPI NOR Flash
 _ Reset and wake-up buttons
 _ 4 color user LEDs
 _ USB OTG FS with Micro-AB connector
 _ Three power supply options:
 _ Expansion connectors and Arduino™ UNO V3 connectors

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-01-10 08:05:47 -05:00
Patrice Chotard
4a56fd484a board: stm32f429-disco: switch to DM STM32 clock driver
Use available DM clk_stm32f.c driver instead of dedicated
mach-stm32/stm32f4/clock.c.

Migrate periph_clock defines from stm32_periph.h directly in
CLK driver. These periph_clock defines will be removed when STMMAC,
TIMER2 and SYSCFG drivers will support DM CLK.

Enable also CLK flag.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-01-10 08:05:46 -05:00
Patrice Chotard
dcb11959d8 mach-stm32: stmf32f4: timer: remove clock_get() call
In order to use common clock driver between STM32F4 and
STM32F7, remove clock_get() call
As APB_PSC is always set to 2, only case when
clock_get(CLOCK_AHB) != clock_get(CLOCK_APB1) is kept

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-01-10 08:05:46 -05:00
Patrice Chotard
c729fb258a mach-stm32: Factorize MPU's region config for STM32 SoCs
MPU's region setup can be factorized between STM32F4/F7/H7 SoCs family
and used a common MPU's region config.

Only one exception for STM32H7 which doesn't have device area
located at 0xA000 0000.

For STM32F4, configure_clocks() need to be moved from arch_cpu_init()
to board_early_init_f().

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
2017-11-29 22:30:50 -05:00
Patrice Chotard
014a953c4a stm32: migrate clock structs in include/stm32_rcc.h
In order to factorize code between STM32F4 and STM32F7
migrate all structs related to RCC clocks in include/stm32_rcc.h

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
2017-11-29 22:30:50 -05:00
Patrice Chotard
3bc599c956 stm32: fix STMicroelectronics copyright
Uniformize STMicroelectronics copyrights headers for STM32
related code.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-11-06 09:51:01 -05:00
Bo Shen
72dee54b4e ARM: stm32f7: fix prescaler calculation of timer
As the timer 2 is on APB1 bus, the maximum of clock frequency of APB1 timer
clock is half of SYSCLK. Then to calculate the timer prescaler for timer 2
which need to be divided by 2.

Signed-off-by: Bo Shen <voice.shen@gmail.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
2017-10-08 16:19:56 -04:00
Patrice Chotard
246771b184 board: Add stm32h7 SoC, discovery and evaluation boards support
This patch adds support for stm32h7 soc family, stm32h743
discovery and evaluation boards.

For more information about STM32H7 series, please visit:
http://www.st.com/en/microcontrollers/stm32h7-series.html

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-09-22 07:40:03 -04:00
Vikas Manocha
1e87f9ced4 spl: stm32: make falcon mode activation configurable
With this change, it will be possible to de-select falcon mode & spl
will only boot U-Boot.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Suggested-by: Bo Shen <voice.shen@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-08-26 14:56:13 -04:00
Patrice Chotard
bc5d038445 stm32f1: remove stm32f1 support
A few years ago STM32F1 SoCs support has been added :
0144caf22c  gpio: stm32: add stm32f1 support
2d18ef2364  ARMv7M: add STM32F1 support

But neither STM32F1 dedicated defconfig nor board was
associated to these commits.

Got confirmation from Tom Rini and Matt Porter to remove
all this code [1]

[1] http://u-boot.10912.n7.nabble.com/Remove-STM32F1-support-td301603.html

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-08-13 15:17:37 -04:00
xypron.glpk@gmx.de
d1fe19766b stm32: remove redundant 'else if'
The if in the else branch is superfluous.
We can use a simple if.

The problem was indicated by cppcheck.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2017-08-13 15:17:28 -04:00
Patrice Chotard
679590ebc0 stmf32f4: soc: fix buildman compilation error
fix the following compilation error reported by buidlman:

       arm:  +   stm32f429-discovery
+arch/arm/mach-stm32/stm32f4/soc.c: In function 'arch_cpu_init':
+arch/arm/mach-stm32/stm32f4/soc.c:30:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
+  for (int i = 0; i < ARRAY_SIZE(stm32_region_config); i++)
+  ^
+arch/arm/mach-stm32/stm32f4/soc.c:30:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
+make[3]: *** [arch/arm/mach-stm32/stm32f4/soc.o] Error 1
+make[2]: *** [arch/arm/mach-stm32/stm32f4] Error 2
+make[1]: *** [arch/arm/mach-stm32] Error 2
+make: *** [sub-make] Error 2

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Vikas Manocha <vikas.manocha@st.com>
2017-08-04 20:38:38 -04:00
Simon Glass
747c4c68c0 stm32: Correct positioning of declaration
The current code gives a warning:

arch/arm/mach-stm32/stm32f7/soc.c: In function 'arch_cpu_init':
arch/arm/mach-stm32/stm32f7/soc.c:38:2: error: 'for' loop initial
    declarations are only allowed in C99 or C11 mode
  for (int i = 0; i < ARRAY_SIZE(stm32_region_config); i++)
  ^
arch/arm/mach-stm32/stm32f7/soc.c:38:2: note: use option -std=c99,
    -std=gnu99, -std=c11 or -std=gnu11 to compile your code

Fix it by moving the declaration to the top of the function.

Signed-off-by: Simon Glass <sjg@chromium.org>
Series-cc trini
2017-07-06 16:17:17 -04:00
Vikas Manocha
1a73bd842e spl: stm32f7: configure for xip booting
With xip booting configuration, we don't need to copy the next image
(U-Boot or linux xipimage) from flash to sdram area.

Flash memory organization is like this:
	spl-U-Boot:	u-boot-spl.bin 	: 0x0800_0000
	U-Boot :	u-boot-dtb.bin	: 0x0800_8000
	linux :		xipImage	: 0x0800_8000

It is also possible to have U-Boot binary & linux binaries configured at
different addresses of flash memory like U-Boot at 0x0800_8000 & linux
xipImage at 0x0800_4000. But in any case, spl-U-Boot needs to be compiled for
U-Boot as next binary with SPL_OS_BOOT option disabled.
By default, spl is configured to boot linux xipImage.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2017-06-09 11:24:00 -04:00
Vikas Manocha
55a3ef714f spl: stm32f7: add kernel boot support
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2017-06-09 11:24:00 -04:00
Vikas Manocha
b97476965b stm32: stm32f7: add spl build support
This commit supports booting from stm32 internal nor flash. spl U-Boot
initializes the sdram memory, copies next image (e.g. standard U-Boot)
to sdram & then jumps to entry point.

Here are the flash memory addresses for U-Boot-spl & standard U-Boot:
	- spl U-Boot		: 0x0800_0000
	- standard U-Boot	: 0x0800_8000

To compile u-boot without spl: Remove SUPPORT_SPL configuration
(arch/arm/mach-stm32/Kconfig)

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
[trini: Rework Kconfig logic a bit]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-06-09 11:23:55 -04:00
Vikas Manocha
624b7101ee stm32f7: configure mpu valid for f7 family
This configuration should be valid for all F7 family devices in general.
Here is the regions info:

	- Region0 : 4GB	  : cacheable & executable.
	- Region1 : 512MB : text area	: strogly ordered & executable.
	- Region2 : 512MB : peripherals : device memory & non-executable.
	- Region3 : 512MB : peripherals : device memory & non-executable.
	- Region4 : 512MB : cortexM area: strongly ordered & non-executable.

Higher region number overrides the lower region configuration.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2017-05-12 08:37:08 -04:00
Vikas Manocha
33b78476d2 stm32: use armv7m MPU configuration support
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2017-05-12 08:37:07 -04:00
Vikas Manocha
dc11d83a2e stm32f7: enable instruction & data cache
It also enables commands for cache enable/disable/status.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
cc: Christophe KERELLO <christophe.kerello@st.com>
2017-04-08 09:26:51 -04:00
Vikas Manocha
712f99a5dd clk: stm32f7: add clock driver for stm32f7 family
add basic clock driver support for stm32f7 to enable clocks required by
the peripherals.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-03-17 14:15:12 -04:00
Michael Kurz
d4363baada ARM: SPI: stm32: add stm32f746 qspi driver
This patch adds support for the QSPI IP found in stm32f7 devices.

Signed-off-by: Michael Kurz <michi.kurz@gmail.com>
2017-01-28 14:04:50 -05:00
Michael Kurz
b20b70fcc0 net: stm32: add designware mac glue code for stm32
This patch adds glue code required for enabling the designware
mac on stm32f7 devices.

Signed-off-by: Michael Kurz <michi.kurz@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2017-01-28 14:04:47 -05:00
Michael Kurz
081de09d49 ARM: stm32: use clock setup function defined in clock.c
Use the clock setup function defined in clock.c instead of setting the
clock bits directly in the drivers.
Remove register definitions of RCC in rcc.h as these are already
defined in the struct in stm32.h

Signed-off-by: Michael Kurz <michi.kurz@gmail.com>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
2017-01-28 14:04:45 -05:00
Michael Kurz
bad5188be2 ARM: stm32: cleanup stm32f7 files
Cleanup stm32f7 files:
- use BIT macro
- use GENMASK macro
- use rcc struct instead of macro additions

Add missing stm32f7 register in rcc struct

Signed-off-by: Michael Kurz <michi.kurz@gmail.com>
Acked-by: Vikas MANOCHA<vikas.manocha@st.com>
2017-01-28 14:04:43 -05:00
Tom Rini
95d5273303 Revert "stm32: Change USART port to USART6 for stm32f746 discovery board"
Per Vikas' request, the problem this commit is supposed to be solving is
something he doesn't see and further this introduces additional hardware
requirements.

This reverts commit 4b2fd720a7.

Signed-off-by: Tom Rini <trini@konsulko.com>
2016-07-21 15:38:13 -04:00
Toshifumi NISHINAGA
4b2fd720a7 stm32: Change USART port to USART6 for stm32f746 discovery board
This change is to remove a halt at about 200KiB
while sending a large(1MiB) binary to a micro controller using USART1.
USART1 is connected to a PC via an on-board ST-Link debugger
that also functions as a USB-Serial converter.
However, it seems to loss some data occasionally.
So I changed the serial port to USART6 and connected it to the PC using
an FTDI USB-Serial cable, therefore the transmission was successfully
completed.

Signed-off-by: Toshifumi NISHINAGA <tnishinaga.dev@gmail.com>
2016-07-14 18:22:44 -04:00
Toshifumi NISHINAGA
25c1b1353c stm32: Add SDRAM support for stm32f746 discovery board
This patch adds SDRAM support for stm32f746 discovery board.
This patch depends on previous patch.
This patch is based on STM32F4 and emcraft's[1].

[1]:  https://github.com/EmcraftSystems/u-boot

Signed-off-by: Toshifumi NISHINAGA <tnishinaga.dev@gmail.com>
2016-07-14 18:22:43 -04:00
Toshifumi NISHINAGA
ba0a3c16e0 stm32: clk: Add 200MHz clock configuration for stm32f746 discovery board
This patch adds 200MHz clock configuration for stm32f746 discovery board.
This patch is based on STM32F4 and emcraft's[1].

[1]:  https://github.com/EmcraftSystems/u-boot

Signed-off-by: Toshifumi NISHINAGA <tnishinaga.dev@gmail.com>
2016-07-14 18:22:41 -04:00
Vikas Manocha
9ecb0c416c stm32: stm32f4: move flash driver to mtd driver location
Same flash driver can be used by other stm32 families like stm32f7.
Better place for this driver would be mtd driver location.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2016-03-26 18:49:28 -04:00
Vikas Manocha
e66c49fa93 stm32: add support for stm32f7 & stm32f746 discovery board
This patch adds support for stm32f7 family & stm32f746 board.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2016-02-24 18:43:57 -05:00
Vikas Manocha
14cec06113 gpio: stm32_gpio: move clock config from driver to board
This patch removes the gpio clock enable from gpio driver & move it in the
board code, making it possible to use the gpio driver with other socs.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2016-02-24 18:42:49 -05:00
Vikas Manocha
dffceb4b15 serial: serial_stm32: move clock config from driver to board
This patch removes the uart clock enable from serial driver & move it in the
board code.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-08 10:10:36 -05:00
Vikas Manocha
0a61ee880c stm32: move stm32 specific code to mach-stm32
This patch moves stm32 sources at one place, with this armv7m now contains
only generic stuff.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2016-01-20 10:19:41 -05:00