From: Ahmad Fatoum Date: Wed, 29 Jan 2020 16:04:18 +0100 Subject: [PATCH] fdts: stm32mp1: add support for Linux Automation MC-1 board The Linux Automation MC-1 is a SBC built around the Octavo Systems OSD32MP15x SiP. The SiP features up to 1 GB DDR3 RAM, EEPROM and PMIC. The board has eMMC and a SD slot for storage. The SDRAM calibration values are taken as is from the DKx boards, which seem to be suitable for operation at German room temperature. This is deemed ok for now, but for use in the field, the SiP will likely need to have its timings determined in a climate chamber. Change-Id: I5f43a61930151ae9d1df2ea7d0f6f9697c813ce0 Signed-off-by: Ahmad Fatoum --- fdts/stm32mp157c-lxa-mc1.dts | 106 +++++++++++++++++ fdts/stm32mp15xx-osd32.dtsi | 278 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 384 insertions(+) create mode 100644 fdts/stm32mp157c-lxa-mc1.dts create mode 100644 fdts/stm32mp15xx-osd32.dtsi diff --git a/fdts/stm32mp157c-lxa-mc1.dts b/fdts/stm32mp157c-lxa-mc1.dts new file mode 100644 index 000000000000..47b96852496f --- /dev/null +++ b/fdts/stm32mp157c-lxa-mc1.dts @@ -0,0 +1,106 @@ +/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause) */ +/* + * Copyright (C) 2020 STMicroelectronics - All Rights Reserved + * Copyright (C) 2020 Ahmad Fatoum, Pengutronix + */ + +/dts-v1/; + +#include "stm32mp157.dtsi" +#include "stm32mp15xc.dtsi" +#include "stm32mp15xx-osd32.dtsi" +#include "stm32mp15xxac-pinctrl.dtsi" + +/ { + model = "Linux Automation MC-1 board"; + compatible = "lxa,stm32mp157c-mc1", "oct,stm32mp15xx-osd32", "st,stm32mp157"; + + aliases { + mmc0 = &sdmmc1; + mmc1 = &sdmmc2; + serial0 = &uart4; + }; + + chosen { + stdout-path = &uart4; + }; + + led-act { + compatible = "gpio-leds"; + + led-green { + label = "mc1:green:act"; + gpios = <&gpioa 13 1>; + linux,default-trigger = "heartbeat"; + }; + }; + + reg_3v3: regulator_3v3 { + compatible = "regulator-fixed"; + regulator-name = "3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + vin-supply = <&v3v3>; + }; +}; + +&sdmmc1 { + pinctrl-names = "default"; + pinctrl-0 = <&sdmmc1_b4_pins_a>; + bus-width = <4>; + cd-gpios = <&gpioh 3 1>; + disable-wp; + no-1-8-v; + st,neg-edge; + vmmc-supply = <®_3v3>; + status = "okay"; +}; + +&sdmmc1_b4_pins_a { + /* + * board lacks external pull-ups on SDMMC lines. Class 10 SD refuses to + * work, thus enable internal pull-ups. + */ + pins1 { + /delete-property/ bias-disable; + bias-pull-up; + }; + pins2 { + /delete-property/ bias-disable; + bias-pull-up; + }; +}; + +&sdmmc2 { + pinctrl-names = "default"; + pinctrl-0 = <&sdmmc2_b4_pins_a &mc1_sdmmc2_d47_pins_b>; + bus-width = <8>; + no-1-8-v; + no-sd; + no-sdio; + non-removable; + st,neg-edge; + vmmc-supply = <®_3v3>; + status = "okay"; +}; + +&uart4 { + pinctrl-names = "default"; + pinctrl-0 = <&uart4_pins_a>; + status = "okay"; +}; + +&pinctrl { + mc1_sdmmc2_d47_pins_b: mc1-sdmmc2-d47-1 { + pins { + pinmux = , /* SDMMC2_D4 */ + , /* SDMMC2_D5 */ + , /* SDMMC2_D6 */ + ; /* SDMMC2_D7 */ + slew-rate = <1>; + drive-push-pull; + bias-disable; + }; + }; +}; diff --git a/fdts/stm32mp15xx-osd32.dtsi b/fdts/stm32mp15xx-osd32.dtsi new file mode 100644 index 000000000000..9db838ea6b56 --- /dev/null +++ b/fdts/stm32mp15xx-osd32.dtsi @@ -0,0 +1,278 @@ +/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause) */ +/* + * Copyright (C) 2020 STMicroelectronics - All Rights Reserved + * Copyright (C) 2020 Ahmad Fatoum, Pengutronix + */ + +#include "stm32mp15-ddr3-1x4Gb-1066-binG.dtsi" +#include "stm32mp15-pinctrl.dtsi" + +&i2c4 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c4_pins_a>; + clock-frequency = <400000>; + i2c-scl-rising-time-ns = <185>; + i2c-scl-falling-time-ns = <20>; + status = "okay"; + + pmic: stpmic@33 { + compatible = "st,stpmic1"; + reg = <0x33>; + interrupts-extended = <&gpioa 0 IRQ_TYPE_EDGE_FALLING>; + interrupt-controller; + #interrupt-cells = <2>; + + regulators { + compatible = "st,stpmic1-regulators"; + + ldo1-supply = <&v3v3>; + ldo6-supply = <&v3v3>; + pwr_sw1-supply = <&bst_out>; + + vddcore: buck1 { + regulator-name = "vddcore"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1350000>; + regulator-always-on; + regulator-initial-mode = <0>; + regulator-over-current-protection; + }; + + vdd_ddr: buck2 { + regulator-name = "vdd_ddr"; + regulator-min-microvolt = <1350000>; + regulator-max-microvolt = <1350000>; + regulator-always-on; + regulator-initial-mode = <0>; + regulator-over-current-protection; + }; + + vdd: buck3 { + regulator-name = "vdd"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + st,mask-reset; + regulator-initial-mode = <0>; + regulator-over-current-protection; + }; + + v3v3: buck4 { + regulator-name = "v3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-over-current-protection; + regulator-initial-mode = <0>; + }; + + v1v8_audio: ldo1 { + regulator-name = "v1v8_audio"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + }; + + v3v3_hdmi: ldo2 { + regulator-name = "v3v3_hdmi"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + vtt_ddr: ldo3 { + regulator-name = "vtt_ddr"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <750000>; + regulator-always-on; + regulator-over-current-protection; + }; + + vdd_usb: ldo4 { + regulator-name = "vdd_usb"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + vdda: ldo5 { + regulator-name = "vdda"; + regulator-min-microvolt = <2900000>; + regulator-max-microvolt = <2900000>; + regulator-boot-on; + }; + + v1v2_hdmi: ldo6 { + regulator-name = "v1v2_hdmi"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + regulator-always-on; + }; + + vref_ddr: vref_ddr { + regulator-name = "vref_ddr"; + regulator-always-on; + regulator-over-current-protection; + }; + + bst_out: boost { + regulator-name = "bst_out"; + }; + + vbus_otg: pwr_sw1 { + regulator-name = "vbus_otg"; + regulator-active-discharge; + }; + + vbus_sw: pwr_sw2 { + regulator-name = "vbus_sw"; + regulator-active-discharge; + }; + }; + + pmic_watchdog: watchdog { + compatible = "st,stpmic1-wdt"; + status = "disabled"; + }; + }; +}; + +&rng1 { + status = "okay"; +}; + +/* ATF Specific */ +#include + +/ { + aliases { + gpio0 = &gpioa; + gpio1 = &gpiob; + gpio2 = &gpioc; + gpio3 = &gpiod; + gpio4 = &gpioe; + gpio5 = &gpiof; + gpio6 = &gpiog; + gpio7 = &gpioh; + gpio8 = &gpioi; + gpio25 = &gpioz; + i2c3 = &i2c4; + }; +}; + +&bsec { + board_id: board_id@ec { + reg = <0xec 0x4>; + st,non-secure-otp; + }; +}; + +&clk_hse { + st,digbypass; +}; + +&cpu0{ + cpu-supply = <&vddcore>; +}; + +&cpu1{ + cpu-supply = <&vddcore>; +}; + +/* CLOCK init */ +&rcc { + secure-status = "disabled"; + st,clksrc = < + CLK_MPU_PLL1P + CLK_AXI_PLL2P + CLK_MCU_PLL3P + CLK_PLL12_HSE + CLK_PLL3_HSE + CLK_PLL4_HSE + CLK_RTC_LSE + CLK_MCO1_DISABLED + CLK_MCO2_DISABLED + >; + + st,clkdiv = < + 1 /*MPU*/ + 0 /*AXI*/ + 0 /*MCU*/ + 1 /*APB1*/ + 1 /*APB2*/ + 1 /*APB3*/ + 1 /*APB4*/ + 2 /*APB5*/ + 23 /*RTC*/ + 0 /*MCO1*/ + 0 /*MCO2*/ + >; + + st,pkcs = < + CLK_CKPER_HSE + CLK_FMC_ACLK + CLK_QSPI_ACLK + CLK_ETH_PLL4P + CLK_SDMMC12_PLL4P + CLK_DSI_DSIPLL + CLK_STGEN_HSE + CLK_USBPHY_HSE + CLK_SPI2S1_PLL3Q + CLK_SPI2S23_PLL3Q + CLK_SPI45_HSI + CLK_SPI6_HSI + CLK_I2C46_HSI + CLK_SDMMC3_PLL4P + CLK_USBO_USBPHY + CLK_ADC_CKPER + CLK_CEC_LSE + CLK_I2C12_HSI + CLK_I2C35_HSI + CLK_UART1_HSI + CLK_UART24_HSI + CLK_UART35_HSI + CLK_UART6_HSI + CLK_UART78_HSI + CLK_SPDIF_PLL4P + CLK_FDCAN_PLL4R + CLK_SAI1_PLL3Q + CLK_SAI2_PLL3Q + CLK_SAI3_PLL3Q + CLK_SAI4_PLL3Q + CLK_RNG1_LSI + CLK_RNG2_LSI + CLK_LPTIM1_PCLK1 + CLK_LPTIM23_PCLK3 + CLK_LPTIM45_LSE + >; + + /* VCO = 1300.0 MHz => P = 650 (CPU) */ + pll1: st,pll@0 { + compatible = "st,stm32mp1-pll"; + reg = <0>; + cfg = < 2 80 0 0 0 PQR(1,0,0) >; + frac = < 0x800 >; + }; + + /* VCO = 1066.0 MHz => P = 266 (AXI), Q = 533 (GPU), R = 533 (DDR) */ + pll2: st,pll@1 { + compatible = "st,stm32mp1-pll"; + reg = <1>; + cfg = <2 65 1 0 0 PQR(1,1,1)>; + frac = <0x1400>; + }; + + /* VCO = 417.8 MHz => P = 209, Q = 24, R = 11 */ + pll3: st,pll@2 { + compatible = "st,stm32mp1-pll"; + reg = <2>; + cfg = <1 33 1 16 36 PQR(1,1,1)>; + frac = <0x1a04>; + }; + + /* VCO = 594.0 MHz => P = 99, Q = 74, R = 74 */ + pll4: st,pll@3 { + compatible = "st,stm32mp1-pll"; + reg = <3>; + cfg = <3 98 5 7 7 PQR(1,1,1)>; + }; +};