Reviewed-on: http://vgitil04.il.marvell.com:8080/43289 Tested-by: iSoC Platform CI <ykjenk@marvell.com> Reviewed-by: Kostya Porotchkin <kostap@marvell.com> Reviewed-by: Igal Liberman <igall@marvell.com> Cc: Simon Glass <sjg@chromium.org> Cc: Stefan Roese <sr@denx.de> Signed-off-by: Ken Ma <make@marvell.com> Signed-off-by: Stefan Roese <sr@denx.de>master
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* Marvell Armada 37xx SoC pin and GPIO controller |
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|
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Each Armada 37xx SoC comes with two pin and GPIO controllers, one for the |
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South Bridge and the other for the North Bridge. |
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|
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GPIO and pin controller: |
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------------------------ |
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|
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Main node: |
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|
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Refer to pinctrl-bindings.txt in this directory for details of the |
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common pinctrl bindings used by client devices, including the meaning |
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of the phrase "pin configuration node". |
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|
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Required properties for pinctrl driver: |
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|
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- compatible: "marvell,armada3710-sb-pinctrl", "syscon, "simple-mfd" |
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for the South Bridge |
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"marvell,armada3710-nb-pinctrl", "syscon, "simple-mfd" |
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for the North Bridge |
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- reg: The first set of registers is for pinctrl/GPIO and the second |
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set is for the interrupt controller |
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- interrupts: list of interrupts used by the GPIO |
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|
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Available groups and functions for the North Bridge: |
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group: jtag |
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- pins 20-24 |
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- functions jtag, gpio |
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group sdio0 |
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- pins 8-10 |
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- functions sdio, gpio |
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group emmc_nb |
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- pins 27-35 |
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- functions emmc, gpio |
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group pwm0 |
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- pin 11 (GPIO1-11) |
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- functions pwm, gpio |
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|
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group pwm1 |
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- pin 12 |
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- functions pwm, gpio |
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|
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group pwm2 |
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- pin 13 |
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- functions pwm, gpio |
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|
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group pwm3 |
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- pin 14 |
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- functions pwm, gpio |
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|
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group pmic1 |
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- pin 7 |
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- functions pmic, gpio |
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|
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group pmic0 |
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- pin 6 |
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- functions pmic, gpio |
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|
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group i2c2 |
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- pins 2-3 |
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- functions i2c, gpio |
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|
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group i2c1 |
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- pins 0-1 |
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- functions i2c, gpio |
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group spi_cs1 |
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- pin 17 |
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- functions spi, gpio |
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group spi_cs2 |
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- pin 18 |
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- functions spi, gpio |
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group spi_cs3 |
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- pin 19 |
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- functions spi, gpio |
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group onewire |
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- pin 4 |
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- functions onewire, gpio |
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group uart1 |
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- pins 25-26 |
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- functions uart, gpio |
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group spi_quad |
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- pins 15-16 |
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- functions spi, gpio |
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group uart_2 |
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- pins 9-10 |
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- functions uart, gpio |
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|
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Available groups and functions for the South Bridge: |
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|
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group usb32_drvvbus0 |
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- pin 36 |
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- functions drvbus, gpio |
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group usb2_drvvbus1 |
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- pin 37 |
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- functions drvbus, gpio |
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group sdio_sb |
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- pins 60-65 |
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- functions sdio, gpio |
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group rgmii |
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- pins 42-53 |
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- functions mii, gpio |
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group pcie1 |
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- pins 39-41 |
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- functions pcie, gpio |
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group smi |
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- pins 54-55 |
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- functions smi, gpio |
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group ptp |
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- pins 56-58 |
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- functions ptp, gpio |
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group ptp_clk |
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- pin 57 |
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- functions ptp, mii |
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group ptp_trig |
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- pin 58 |
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- functions ptp, mii |
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group mii_col |
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- pin 59 |
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- functions mii, mii_err |
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GPIO subnode: |
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Please refer to gpio.txt in "gpio" directory for details of gpio-ranges property |
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and the common GPIO bindings used by client devices. |
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Required properties for the GPIO driver under the gpio subnode: |
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- interrupts: List of interrupt specifiers for the controllers interrupt. |
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- gpio-controller: Marks the device node as a GPIO controller. |
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- #gpio-cells: Should be 2. The first cell is the GPIO number and the |
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second cell specifies GPIO flags, as defined in |
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<dt-bindings/gpio/gpio.h>. Only the GPIO_ACTIVE_HIGH and |
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GPIO_ACTIVE_LOW flags are supported. |
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- gpio-ranges: Range of pins managed by the GPIO controller. |
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Example: |
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pinctrl_sb: pinctrl-sb@18800 { |
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compatible = "marvell,armada3710-sb-pinctrl", |
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"syscon", "simple-mfd"; |
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reg = <0x18800 0x100>, <0x18C00 0x20>; |
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gpiosb: gpiosb { |
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#gpio-cells = <2>; |
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gpio-ranges = <&pinctrl_sb 0 0 30>; |
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gpio-controller; |
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interrupts = |
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<GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>, |
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<GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>, |
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<GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>, |
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<GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>, |
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<GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>; |
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}; |
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rgmii_pins: mii-pins { |
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groups = "rgmii"; |
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function = "mii"; |
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}; |
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sdio_pins: sdio-pins { |
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groups = "sdio_sb"; |
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function = "sdio"; |
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}; |
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pcie_pins: pcie-pins { |
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groups = "pcie1"; |
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function = "pcie"; |
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}; |
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}; |
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