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2021-07-25ARM: dts: stm32: fix timer nodes on STM32 MCU to prevent warningsAlexandre Torgue
[ Upstream commit 2388f14d8747f8304e26ee870790e188c9431efd ] Prevent warning seen with "make dtbs_check W=1" command: Warning (avoid_unnecessary_addr_size): /soc/timers@40001c00: unnecessary address-cells/size-cells without "ranges" or child "reg" property Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-25ARM: dts: stm32: fix RCC node name on stm32f429 MCUAlexandre Torgue
[ Upstream commit e4b948415a89a219d13e454011cdcf9e63ecc529 ] This prevent warning observed with "make dtbs_check W=1" Warning (simple_bus_reg): /soc/rcc@40023810: simple-bus unit address format error, expected "40023800" Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-08-02ARM: dts: stm32: add pwm cells to stm32f429Fabrice Gasnier
STM32 Timers support generic 3 cells PWM to encode PWM number, period and polarity. Fixes: c0e14fc712d9 ("ARM: dts: stm32: add Timers driver for stm32f429 MCU") Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
2019-04-11ARM: dts: stm32: Add romem and temperature calibration on stm32f429Fabrice Gasnier
Add & enable stm32 factory-programmed memory. Describe temperature sensor calibration cells. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
2019-02-15Merge tag 'stm32-dt-for-v5.1-1' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into arm/dt STM32 DT updates for v5.1, round 1 Highlights: ---------- MPU part: -Enable Digital Thermal Sensor (dts) on stm32mp157c-ed1 (and so ev1). MCU part: -Add SPI support on stm32f429 SOC (4 SPIs instances). * tag 'stm32-dt-for-v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32: ARM: dts: stm32: Enable thermal sensor support on STM32MP157c-ed1 ARM: dts: stm32: add SPI support on STM32F429 SoC Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-02-01ARM: dts: stm32: add SPI support on STM32F429 SoCCezary Gapinski
This patch adds all SPI instances of the STM32F429 SoC. Signed-off-by: Cezary Gapinski <cezary.gapinski@gmail.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
2019-01-30ARM: dts: Kill off skeleton{64}.dtsiRob Herring
Remove the usage of skeleton.dtsi in the remaining dts files. It was deprecated since commit 9c0da3cc61f1 ("ARM: dts: explicitly mark skeleton.dtsi as deprecated"). This will make adding a unit-address to memory nodes easier. The main tricky part to removing skeleton.dtsi is we could end up with no /memory node at all when a bootloader depends on one being present. I hacked up dtc to check for this condition. Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Antoine Tenart <antoine.tenart@bootlin.com> Acked-by: Alexandre TORGUE <alexandre.torgue@st.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com> Tested-by: Gregory CLEMENT <gregory.clement@bootlin.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-09-20ARM: dts: stm32: Add clk-lse node's label on stm32f429Patrice Chotard
Add missing clk_lse label for node clk-lse. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
2018-07-13ARM: dts: stm32: update iwdg with lsi clock name for stm32f429Ludovic Barre
This patch updates iwdg watchdog to use lsi clock name. Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
2018-06-25ARM: dts: stm32: update rtc st,syscfg property on stm32f429Amelie Delaunay
To fit with latest rtc driver updates, rtc st,syscfg property must contain the control register offset of pwrcfg and the mask corresponding to the DBP (Disable Backup Protection) bit. Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
2018-02-27ARM: dts: stm32: Add SDIO controller for stm32f429Patrice Chotard
stm32f429 embeds ARM_PL180 sdi IP, adds SDIO controller node to allow MMC support. Signed-off-by: Andrea Merello <andrea.merello@gmail.com> Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
2017-10-09Merge 4.14-rc4 into tty-nextGreg Kroah-Hartman
We want the tty/serial fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-04ARM: dts: stm32: use right pinctrl compatible for stm32f469Alexandre Torgue
Currently, same stm32f429-pinctrl driver is used for stm32f429 and stm32f469. As pin map is different between those 2 MCUs, a stm32f469-pinctrl driver has been recently added. This patch -allows to use stm32f469-pinctrl driver for stm32f469 boards -reworks stm32 devicetree files to fit with stm32f429 / stm32f469 In the same time it fixes an issue when only MACH_STM32F469 flag is selected in menuconfig. Fixes: d28bcd53fa90 ("ARM: stm32: Introduce MACH_STM32F469 flag") Reported-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
2017-10-04Arm: dts: stm32: remove extra compatible string from DT & driverVikas Manocha
This patch remove the extra compatibility string "st,stm32-usart" from driver & device tree. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-27ARM: dts: stm32: Add DAC support on stm32f429Fabrice Gasnier
Add support for DAC (Digital to Analog Converter) to STM32F429. STM32F429 DAC has two output channels. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Acked-by: Joanthan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
2017-06-07ARM: dts: stm32: Add CRC support to stm32f429Cosar Dindar
Add CRC32 Crypto support to stm32f429. Signed-off-by: Cosar Dindar <cosardindar@gmail.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-06-07ARM: dts: stm32: Enable DCMI support on STM32F429 MCUHugues Fruchet
Enable DCMI camera interface on STM32F429 MCU. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-06-07ARM: dts: stm32: Set gpio controller as interrupt controller on F4 and F7Alexandre TORGUE
This patch set each gpio controller as a interrupt controller. User who wants to use gpio as interrupt will have choice to use either "gpiolib" interface or "common" interrupt interface. Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-06-07ARM: dts: stm32: Add watchdog support for STM32F429 SoCYannick Fertre
Add watchdog into DT for stm32f429 family. Signed-off-by: Yannick FERTRE <yannick.fertre@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-06-07ARM: dts: stm32: Add ltdc support on stm32f429 MCUYannick Fertre
Add LTDC (Lcd-tft Display Controller) support. Signed-off-by: Yannick Fertre <yannick.fertre@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-04-03ARM: dts: stm32: Add USB FS support for STM32F429 MCUBruno Herrera
This patch adds the USB pins and nodes for USB FS core. Signed-off-by: Bruno Herrera <bruherrera@gmail.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-03-23ARM: dts: stm32: Enable dma by default on stm32f4 adcFabrice Gasnier
Configure STM32F4 ADC to use dma by default. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-02-01ARM: dts: stm32: Add I2C1 support for STM32F429 SoCM'boumba Cedric Madianga
This patch adds I2C1 support for STM32F429 SoC Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-02-01ARM: dts: stm32: Use clock DT binding definition on stm32f429 familyGabriel Fernandez
This patch uses clock DT binding definition instead numerical values for stm32f429 board. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-02-01ARM: dts: stm32: add Timers driver for stm32f429 MCUBenjamin Gaignard
Add Timers and it sub-nodes into DT for stm32f429 family. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-01-20ARM: dts: stm32: Add RTC support for STM32F429 MCUAmelie Delaunay
This patch adds STM32 RTC bindings for STM32F429. Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-01-20ARM: dts: stm32: set HSE_RTC clock frequency to 1 MHz on stm32f429Amelie Delaunay
This patch set HSE_RTC clock frequency to 1 MHz, as the clock supplied to the RTC must be 1 MHz. Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-01-20ARM: dts: stm32: Include auxiliary stm32fx clock definitionGabriel Fernandez
This patch include auxiliary clock definition (clocks which are not derived from system clock. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-01-20ARM: dts: stm32: Add external I2S clock on stm32f429 MCUGabriel Fernandez
This patch adds an external I2S clock in the DT. The I2S clock could be derived from an external I2S clock or by I2S pll. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-01-20ARM: dts: stm32: Add ADC support to stm32f429Fabrice GASNIER
Add ADC support & pinctrl analog phandle (adc3_in8) to stm32f429. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2017-01-20ARM: dts: stm32: Add missing USART3 pin config to stm32f469-disco boardBruno Meirelles Herrera
This patch adds USART3 pin configuration on PB10/PA11 pins for STM32F469I-DISCO board. Signed-off-by: Bruno Herrera <bruherrera@gmail.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2016-11-04ARM: dts: stm32f429: add LSI and LSE clocksGabriel Fernandez
This patch adds lsi / lse oscillators. These clocks can be use by RTC clocks. The clock drivers needs to disable the power domain write protection using syscon / regmap to enable these clocks. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2016-11-04ARM: dts: stm32f429: remove Ethernet wake on Lan supportAlexandre TORGUE
This patch removes WoL (Wake on Lan) support as it is not yet fully supported and tested. Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2016-11-04ARM: dts: stm32f429: Align Ethernet node with new bindings propertiesAlexandre TORGUE
This patch aligns clocks names and node reference according to new stm32-dwmac glue binding. It also renames Ethernet pinctrl phandle (indeed there is no need to add 0 as Ethernet instance as there is only one IP in SOC). Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2016-11-04ARM: DT: stm32: move dma translation to board filesAlexandre TORGUE
stm32f469-disco and stm32f429-eval boards use SDRAM start address remapping (to @0) to boost performances. A DMA translation through "dma-ranges" property was needed for other masters than the M4 CPU. stm32f429-disco doesn't use remapping so doesn't need this DMA translation. This patches moves this DMA translation definition from stm32f429 soc file to board files. Tested-by: Bruno Herrera <bruherrera@gmail.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2016-11-04ARM: DT: STM32: add dma for usart3 on F429Alexandre TORGUE
Add DMA support for USART3 on STM32F429 MCU. Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2016-11-04ARM: DT: STM32: add dma for usart1 on F429Gerald Baeza
Tested-by: Bruno Herrera <bruherrera@gmail.com> Signed-off-by: Gerald Baeza <gerald.baeza@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2016-11-04ARM: dts: Add GPIO irq support to STM32F429Maxime Coquelin
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
2016-10-07Merge tag 'armsoc-dt' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM DT updates from Arnd Bergmann: "These are as usual a very large number of mostly boring updates to enable devices in existing machines, or to fix minor bugs. Notably, an ongoing treewide effort to fix warnings caused by an update to the device tree compiler. These are enabled with "make W=1" at the moment but can hopefully become the default once all issues have been addressed. No new SoC platform is added this time around (Armada 395 and Orion mv88f5181 are slight variations of existing ones), but a significant number of new dts files are added, which I list by platform: - Allwinner: Empire Electronix M712 and iNet d978 Rev2 tablets, Orange Pi PC Plus, Orange Pi 2, Orange Pi Plus 2E, Orange Pi Lite, Olimex A33-Olinuxino, and Nano Pi Neo single-board computers - ARM Realview: all supported machines (ported from board files) - Broadcom: BCM958525er, BCM958522er, BCM988312hr, BCM958623hr and BCM958622hr reference boards for Northstar platform, Raspberry Pi Zero single-board computer - Marvell EBU: Netgear WNR854T router (ported from board file), Armada 395 SoC platform and GP board Armada 390 DB development board - NXP i.MX: imx7s Warp7 reference board, Gateworks Ventana GW553x single-board computer, Technologic Systems TS-4900 and Engicam IMX6UL GEA M6UL computer-on-module, Inverse Path USB armory board - Qualcomm: LG Nexus 5 Phone - Renesas: r8a7792/wheat and r7s72100/rskrza1 development boards - Rockchip: Rockchip RK3288 Fennec reference board, Firefly RK3288 Reload platform - ST Microelectronics STi: B2260 (96boards) single-board computer - TI Davinci: OMAP-L138 LCDK Development kit - TI OMAP: beagleboard-x15 rev B1 single-board computer" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (390 commits) ARM: dts: sony-nsz-gs7: add missing unit name to /memory node ARM: dts: chromecast: add missing unit name to /memory node ARM: dts: berlin2q-marvell-dmp: add missing unit name to /memory node ARM: dts: berlin2: Add missing unit name to /soc node ARM: dts: berlin2cd: Add missing unit name to /soc node ARM: dts: berlin2q: Add missing unit name to /soc node ARM: dts: berlin2: Remove skeleton.dtsi inclusion ARM: dts: berlin2cd: Remove skeleton.dtsi inclusion ARM: dts: berlin2q: Remove skeleton.dtsi inclusion arm: dts: berlin2q: enable all wdt nodes unconditionally arm: dts: berlin2: enable all wdt nodes unconditionally ARM: dts: omap5-igep0050.dts: Use tabs for indentation ARM: dts: Fix igepv5 power button GPIO direction ARM: dts: am335x-evmsk: Add blue-and-red-wiring -property to lcdc node ARM: dts: am335x-evmsk: Whitespace cleanup of lcdc related nodes ARM: dts: am335x-evm: Add blue-and-red-wiring -property to lcdc node ARM: dts: s3c64xx: Use macros for pinctrl configuration ARM: dts: s3c2416: Use macros for pinctrl configuration ARM: dts: s5pv210: Use macros for pinctrl configuration ARM: dts: s3c64xx: Use common macros for pinctrl configuration ...
2016-10-07Merge tag 'armsoc-drivers' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "Driver updates for ARM SoCs, including a couple of newly added drivers: - The Qualcomm external bus interface 2 (EBI2), used in some of their mobile phone chips for connecting flash memory, LCD displays or other peripherals - Secure monitor firmware for Amlogic SoCs, and an NVMEM driver for the EFUSE based on that firmware interface. - Perf support for the AppliedMicro X-Gene performance monitor unit - Reset driver for STMicroelectronics STM32 - Reset driver for SocioNext UniPhier SoCs Aside from these, there are minor updates to SoC-specific bus, clocksource, firmware, pinctrl, reset, rtc and pmic drivers" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (50 commits) bus: qcom-ebi2: depend on HAS_IOMEM pinctrl: mvebu: orion5x: Generalise mv88f5181l support for 88f5181 clk: mvebu: Add clk support for the orion5x SoC mv88f5181 dt-bindings: EXYNOS: Add Exynos5433 PMU compatible clocksource: exynos_mct: Add the support for ARM64 perf: xgene: Add APM X-Gene SoC Performance Monitoring Unit driver Documentation: Add documentation for APM X-Gene SoC PMU DTS binding MAINTAINERS: Add entry for APM X-Gene SoC PMU driver bus: qcom: add EBI2 driver bus: qcom: add EBI2 device tree bindings rtc: rtc-pm8xxx: Add support for pm8018 rtc nvmem: amlogic: Add Amlogic Meson EFUSE driver firmware: Amlogic: Add secure monitor driver soc: qcom: smd: Reset rx tail rather than tx memory: atmel-sdramc: fix a possible NULL dereference reset: hi6220: allow to compile test driver on other architectures reset: zynq: add driver Kconfig option reset: sunxi: add driver Kconfig option reset: stm32: add driver Kconfig option reset: socfpga: add driver Kconfig option ...
2016-09-21ARM/dts: Add EXTI controller node to stm32f429Alexandre TORGUE
Originally-from: Maxime Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Cc: Daniel Thompson <daniel.thompson@linaro.org> Cc: Jason Cooper <jason@lakedaemon.net> Cc: arnd@arndb.de Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: bruherrera@gmail.com Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org Cc: Rob Herring <robh+dt@kernel.org> Cc: lee.jones@linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1474387259-18926-5-git-send-email-alexandre.torgue@st.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-09-06ARM: dts: armv7-m: remove skeleton.dtsi includeJoachim Eastwood
Remove skeleton.dtsi from the common ARM Cortex-M dtsi. This will allow us to remove skeleton.dtsi on a per platform basis and get rid of the unit address warning on the memory nodes without getting duplicate memory nodes. See 3ebee5a2e141 ("arm64: dts: kill skeleton.dtsi") for additional reasons not to use the skeleton.dtsi. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Vladimir Murzin <vladimir.murzin@arm.com> Acked-by: Stefan Agner <stefan@agner.ch> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
2016-08-24ARM: dts: stm32f429: add missing #reset-cells of rccGabriel Fernandez
This patch adds #reset-cells property to rcc node. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-03-01ARM: dts: stm32f429: Add Ethernet supportAlexandre TORGUE
Add Ethernet support (Synopsys MAC IP 3.50a) on stm32f429 SOC. Signed-off-by: Alexandre TORGUE <alexandre.torgue@gmail.com> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
2016-03-01ARM: dts: stm32f429: Add system config bank nodeAlexandre TORGUE
Signed-off-by: Alexandre TORGUE <alexandre.torgue@gmail.com> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
2016-02-25ARM: dts: stm32429i-eval: Add USB HS host mode supportMaxime Coquelin
This patch adds USB HS support in host mode only. This port supports OTG mode, but the device more is not working properly as of now. Once the device mode fixed, the node will be updated to support OTG. Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
2016-02-23ARM: dts: stm32f429: Fix clocks referenced by GPIO banksMaxime Coquelin
All the clocks referenced by the GPIO banks were not the good ones. Reported-by: Bruno Herrera <bruherrera@gmail.com> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
2016-02-11ARM: dts: stm32f429: Boost perfs by remapping SDRAM Bank 1 to 0x0Maxime Coquelin
STM32F429 allows to remap FMC SDRAM Bank 1 from 0xc0000000 to 0x0, by writing 0x4 to SYSCFG_MEMRMP register. As mentionned in the reference manual (see chapter 9.3.1), the performance gain is really interresting: "In remap mode at address 0x0000 0000, the CPU can access the external memory via ICode bus instead of System bus which boosts up the performance." These are the dhrystone results with and without the remap enabled: Default (SDRAM in 0xc0000000): --------------------------------- Microseconds for one run through Dhrystone: 31.8 Dhrystones per Second: 31416.9 Remap (SDRAM in 0x0000000): ----------------------------- Microseconds for one run through Dhrystone: 20.6 Dhrystones per Second: 48520.1 This patch first change the SDRAM start address to 0x0 for STM32429i-EVAL board, and also set the dma-range property as the other masters than the M4 CPU still see SDRAM in 0xc0000000. Note that the Discovery board cannot benefit from this feature, since the SDRAM is connected to Bank 2. Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
2016-02-11ARM: dts: Add USART1 pin config to STM32F429 boardsMaxime Coquelin
This patch selects USART1 pin configuration on PA9/PA10 pins for both Eval and Disco boards. Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
2016-02-11ARM: dts: Add pinctrl node to STM32F429Maxime Coquelin
The STM32F429 MCU has 11 GPIO banks, with 16 pins per bank. Acked-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>