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2022-08-31ARM: dts: at91: sama7g5ek: specify proper regulator output rangesClaudiu Beznea1-9/+9
Min and max output ranges of regulators need to satisfy board requirements not PMIC requirements. Thus adjust device tree to cope with this. Fixes: 7540629e2fc7 ("ARM: dts: at91: add sama7g5 SoC DT and sama7g5-ek") Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220826083927.3107272-7-claudiu.beznea@microchip.com
2022-06-27ARM: dts: at91: align gpio-key node names with dtschemaKrzysztof Kozlowski1-2/+2
The node names should be generic and DT schema expects certain pattern (e.g. with key/button/switch). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220616005333.18491-38-krzysztof.kozlowski@linaro.org
2022-05-27Merge tag 'at91-dt-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/lateArnd Bergmann1-1/+20
AT91 DT #2 for 5.19: - at91: more DT compliance updates for RTC and RTT nodes - at91: sama7g5: add microphone support * tag 'at91-dt-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux: ARM: dts: at91: sama7g5ek: add node for PDMC0 ARM: dts: at91: sama7g5: add nodes for PDMC ARM: dts: at91: Use the generic "rtc" node name for the rtt IPs ARM: dts: at91: Add the required 'atmel, rtt-rtc-time-reg' property Link: https://lore.kernel.org/r/20220517153252.92393-1-nicolas.ferre@microchip.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-05-17ARM: dts: at91: sama7g5ek: add node for PDMC0Codrin Ciubotariu1-1/+20
SAMA7G5-EK has 4 PDM microphones connected to PDMC0. PDMC0 pinmux is in conflict with gmac1, gmac1 being enabled by default. Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/all/20220307122202.2251639-6-codrin.ciubotariu@microchip.com Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2022-04-13ARM: dts: at91: sama7g5ek: Align the impedance of the QSPI0's HSIO and PCB linesTudor Ambarus1-1/+1
The impedance of the QSPI PCB lines on the sama7g5ek is 50 Ohms. Align the output impedance of the QSPI0 HSIOs by setting a medium drive strength which corresponds to an impedance of 56 Ohms when VDD is in the 3.0V - 3.6V range. The high drive strength setting corresponds to an output impedance of 42 Ohms on the QSPI0 HSIOs. Suggested-by: Mihai Sain <mihai.sain@microchip.com> Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20220406130505.422042-1-tudor.ambarus@microchip.com
2022-04-13ARM: dts: at91: sama7g5ek: enable pull-up on flexcom3 console linesEugen Hristev1-1/+1
Flexcom3 is used as board console serial. There are no pull-ups on these lines on the board. This means that if a cable is not connected (that has pull-ups included), stray characters could appear on the console as the floating pins voltage levels are interpreted as incoming characters. To avoid this problem, enable the internal pull-ups on these lines. Fixes: 7540629e2fc7 ("ARM: dts: at91: add sama7g5 SoC DT and sama7g5-ek") Cc: stable@vger.kernel.org # v5.15+ Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20220307113827.2419331-1-eugen.hristev@microchip.com
2022-02-25ARM: dts: at91: sama7g5ek: set regulator voltages for standby stateClaudiu Beznea1-0/+5
Set regulator voltages for standby state to avoid wrong behavior of system while in standby. The CPU voltage has been chosen as being the one corresponding to OPP=600MHz. Next commit will set the 600MHz OPP as the suspend OPP. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20220113144900.906370-8-claudiu.beznea@microchip.com
2022-02-25ARM: dts: at91: fix low limit for CPU regulatorClaudiu Beznea1-1/+1
Fix low limit for CPU regulator. Otherwise setting voltages lower than 1.125V will not be allowed (CPUFreq will not be allowed to set proper voltages on proper frequencies). Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20220113144900.906370-7-claudiu.beznea@microchip.com
2022-02-25ARM: dts: at91: sama7g5: Enable can0 and can1 support in sama7g5-ekHari Prasath1-0/+25
Enable the can0 and can1 controllers in sama7g5-ek board along with its pin mux settings. Signed-off-by: Hari Prasath <Hari.PrasathGE@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20220222113924.25799-3-Hari.PrasathGE@microchip.com
2021-12-13ARM: dts: at91: sama7g5ek: Add QSPI0 nodeTudor Ambarus1-0/+73
QSPI0 comunicates with a MX66LM1G45G SPI NOR flash. Enable the controller and describe the flash. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20211209123643.341892-2-tudor.ambarus@microchip.com
2021-11-03Merge tag 'dt-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds1-0/+20
Pull ARM SoC DT updates from Arnd Bergmann: "This is a rather large update for the ARM devicetree files, after a few quieter releases, with 775 total commits and 47 branches pulled into this one. There are 5 new SoC types plus some minor variations, and a total of 60 new machines, so I'm limiting the summary to the main noteworthy items: - Apple M1 gain support for PCI and pinctrl, getting a bit closer to a usable system out of the box. - Qualcomm gains support for Snapdragon 690 (aka SM6350) as well as SM7225, 11 new smartphones, and three additional Chromebooks, and improvements all over the place. - Samsung gains support for ExynosAutov9, an automotive version of their smartphone SoC, but otherwise no major changes. - Microchip adds the SAMA5D29 SoC in the SAMA5 family, and a number of improvements for the recently added SAMA7 family. The LAN966 SoC that was added in the platform code does not have dts files yet. Two board files are added for the older at91sam9g20 SoC - Aspeed supports two additional server boards using their AST2600 as BMC, and improves support for qemu models - Rockchip RK3566/RK3688 gets added, along with six new development boards using RK3328/RK3399/RK3566, and one Chromebook tablet. - Two NAS boxes are added using the ARMv4 based Gemini platform - One new board is added to the Intel Arria SoC FPGA family - Marvell adds one network switch based on Armada 381 and the new MOCHAbin 7040 development board - NXP adds support for the S32G2 automotive SoC, two imx6 based ebook readers, and three additional development boards, which is notably less than their usual additions, but they also gain improvements to their many existing boards - STmicroelectronics adds their stm32mp13 SoC family along with a reference board - Renesas adds new versions of their R-Car Gen3 SoCs and many updates for their older generations - Broadcom adds support for a number of Cisco Meraki wireless controllers, along with two new boards and other updates for BCM53xx/BCM47xx networking SoCs and the Raspberry Pi boards - Mediatek improves support for the MT81xx SoCs used in Chromebooks as well as the MT76xx networking SoCs - NVIDIA adds a number of cleanups and additional support for more hardware on the already supported machines - TI K3 adds support for three new boards along with cleanups - Toshiba adds one board for the Visconti family - Xilinx adds five new ZynqMP based machines - Amlogic support is added for the Radxa Zero and two Jethub home automation controllers, along with changes to other machines - Rob Herring continues his work on fixing dtc warnings all over the tree. - Minor updates for TI OMAP, Mstar, Allwinner/sunxi, Hisilicon, Ux500, Unisoc" * tag 'dt-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (720 commits) arm64: dts: apple: j274: Expose PCI node for the Ethernet MAC address arm64: dts: apple: t8103: Add root port interrupt routing arm64: dts: apple: t8103: Add PCIe DARTs arm64: apple: Add PCIe node arm64: apple: Add pinctrl nodes ARM: dts: arm: Update ICST clock nodes 'reg' and node names ARM: dts: arm: Update register-bit-led nodes 'reg' and node names arm64: dts: exynos: add chipid node for exynosautov9 SoC ARM: dts: qcom: fix typo in IPQ8064 thermal-sensor node Revert "arm64: dts: qcom: msm8916-asus-z00l: Add sensors" arm64: dts: qcom: ipq6018: Remove unused 'iface_clk' property from dma-controller node arm64: dts: qcom: ipq6018: Remove unused 'qcom,config-pipe-trust-reg' property arm64: dts: qcom: sm8350: Add CPU topology and idle-states arm64: dts: qcom: Drop unneeded extra device-specific includes arm64: dts: qcom: msm8916: Drop standalone smem node arm64: dts: qcom: Fix node name of rpm-msg-ram device nodes arm64: dts: qcom: msm8916-asus-z00l: Add sensors arm64: dts: qcom: msm8916-asus-z00l: Add SDCard arm64: dts: qcom: msm8916-asus-z00l: Add touchscreen arm64: dts: qcom: sdm845-oneplus: remove devinfo-size from ramoops node ...
2021-10-21ARM: dts: at91: sama7g5-ek: use blocks 0 and 1 of TCB0 as cs and ceClaudiu Beznea1-0/+12
Use blocks 0 and 1 of TCB0 for clocksource and clockevent functionality. PIT64B is already enabled on SAMA7G5 targets for this but TCB0 will be used as a fallback only in case PIT64B will fail to probe. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20211020094656.3343242-4-claudiu.beznea@microchip.com
2021-10-04ARM: dts: at91: sama7g5ek: to not touch slew-rate for SDMMC pinsClaudiu Beznea1-0/+6
With commit c709135e576b ("pinctrl: at91-pio4: add support for slew-rate") and commit cbde6c823bfa ("pinctrl: at91-pio4: Fix slew rate disablement") the slew-rate is enabled by default for each configured pin. The datasheet specifies at chapter "Output Driver AC Characteristics" that HSIO drivers (use in SDMMCx and QSPI0 peripherals), don't have a slewrate setting but are rather calibrated against an external 1% resistor mounted on the SDMMCx_CAL or QSPI0_CAL pins. Depending on the target signal frequency and the external load, it is possible to adjust their target output impedance. Thus set slew-rate = <0> for SDMMC (QSPI is not enabled at the moment in device tree). Fixes: 7540629e2fc7 ("ARM: dts: at91: add sama7g5 SoC DT and sama7g5-ek") Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20210915074836.6574-3-claudiu.beznea@microchip.com
2021-10-04ARM: dts: at91: sama7g5ek: use proper slew-rate settings for GMACsClaudiu Beznea1-6/+22
Datasheet chapter "EMAC Timings" specifies that while in 3.3V domain GMAC's MDIO pins should be configured with slew-rate enabled, while the data + signaling pins should be configured with slew-rate disabled when GMAC works in RGMII or RMII modes. The pin controller for SAMA7G5 sets the slew-rate as enabled for all pins. Adapt the device tree to comply with these. Fixes: 7540629e2fc7 ("ARM: dts: at91: add sama7g5 SoC DT and sama7g5-ek") Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20210915074836.6574-2-claudiu.beznea@microchip.com
2021-10-04ARM: dts: at91: sama7g5ek: add suspend voltage for ddr3l railClaudiu Beznea1-0/+2
SAMA7G5-EK board has DDR3L type of memory soldered. This needs 1.35V. The 1.35V for DDR3L rail at run-time is selected by the proper configuration on SELV2 pin (for 1.35V it needs to be in high-z state). When suspended the MCP16502 PMIC soldered on SAMA7G5-EK will use different sets of configuration registers to provide proper voltages on its rail. Run-time configuration registers could be configured differently than suspend configuration register for MCP16502 (VSEL2 affects only run-time configuration). In suspend states the DDR3L memory soldered on SAMA7G5-EK switches to self-refresh. Even on self-refresh it needs to be powered by a 1.35V rail. Thus, make sure the PMIC is configured properly when system is suspended. Fixes: 7540629e2fc7 (ARM: dts: at91: add sama7g5 SoC DT and sama7g5-ek") Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20210930154219.2214051-2-claudiu.beznea@microchip.com
2021-09-15ARM: dts: at91: sama7g5ek: enable ADC on the boardEugen Hristev1-0/+8
The ADC controller on the board is fed by a 2.5V reference voltage. By default the channels #14 and #15 are dedicated to analog input (marked AN on the board), on the connectors mikrobus1 and mikrobus2. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20210901123013.329792-11-eugen.hristev@microchip.com
2021-09-14ARM: dts: at91: sama7g5: add shdwc nodeClaudiu Beznea1-0/+9
Add shutdown controller node and enable it. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20210823131915.23857-5-claudiu.beznea@microchip.com
2021-07-19ARM: dts: at91: add sama7g5 SoC DT and sama7g5-ekEugen Hristev1-0/+656
Add Device Tree for sama7g5 SoC and associated board sama7g5-ek Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> [claudiu.beznea@microchip.com: add clocks, ethernet, timers, power] Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> [codrin.ciubotariu@microchip.com: add audio] Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> [nicolas.ferre@microchip.com: removed eeproms, reorder i2s dma chans] Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20210628120452.74408-2-eugen.hristev@microchip.com