diff --git a/arch/arm/boards/zii-imx7d-dev/Makefile b/arch/arm/boards/zii-imx7d-dev/Makefile index 01c7a25..e1baed1 100644 --- a/arch/arm/boards/zii-imx7d-dev/Makefile +++ b/arch/arm/boards/zii-imx7d-dev/Makefile @@ -1,2 +1,3 @@ +CFLAGS_pbl-lowlevel.o := -fno-tree-switch-conversion -fno-jump-tables obj-y += board.o lwl-y += lowlevel.o diff --git a/arch/arm/boards/zii-imx7d-dev/board.c b/arch/arm/boards/zii-imx7d-dev/board.c index 0a99976..89f0515 100644 --- a/arch/arm/boards/zii-imx7d-dev/board.c +++ b/arch/arm/boards/zii-imx7d-dev/board.c @@ -33,7 +33,8 @@ static int zii_imx7d_rpu2_coredevices_init(void) { - if (!of_machine_is_compatible("zii,imx7d-zii-rpu2")) + if (!of_machine_is_compatible("zii,imx7d-zii-rpu2") && + !of_machine_is_compatible("zii,imx7d-rmu2")) return 0; zii_imx7d_rpu2_init_fec(); diff --git a/arch/arm/boards/zii-imx7d-dev/lowlevel.c b/arch/arm/boards/zii-imx7d-dev/lowlevel.c index d7f8feb..3ad4940 100644 --- a/arch/arm/boards/zii-imx7d-dev/lowlevel.c +++ b/arch/arm/boards/zii-imx7d-dev/lowlevel.c @@ -19,6 +19,7 @@ #include extern char __dtb_imx7d_zii_rpu2_start[]; +extern char __dtb_imx7d_zii_rmu2_start[]; static inline void setup_uart(void) { @@ -39,12 +40,69 @@ putc_ll('>'); } +enum zii_platform_imx7d_type { + ZII_PLATFORM_IMX7D_RPU2 = 0b0000, + ZII_PLATFORM_IMX7D_RMU2 = 0b1000, +}; + +static unsigned int get_system_type(void) +{ +#define GPIO_DR 0x000 +#define GPIO_GDIR 0x004 +#define SYSTEM_TYPE GENMASK(15, 12) + + u32 gdir, dr; + void __iomem *gpio2 = IOMEM(MX7_GPIO2_BASE_ADDR); + void __iomem *iomuxbase = IOMEM(MX7_IOMUXC_BASE_ADDR); + + /* + * System type is encoded as a 4-bit number specified by the + * following pins (pulled up or down with resistors on the + * board). + */ + imx_setup_pad(iomuxbase, MX7D_PAD_EPDC_DATA12__GPIO2_IO12); + imx_setup_pad(iomuxbase, MX7D_PAD_EPDC_DATA13__GPIO2_IO13); + imx_setup_pad(iomuxbase, MX7D_PAD_EPDC_DATA14__GPIO2_IO14); + imx_setup_pad(iomuxbase, MX7D_PAD_EPDC_DATA15__GPIO2_IO15); + + gdir = readl(gpio2 + GPIO_GDIR); + gdir &= ~SYSTEM_TYPE; + writel(gdir, gpio2 + GPIO_GDIR); + + dr = readl(gpio2 + GPIO_DR); + + return FIELD_GET(SYSTEM_TYPE, dr); +} + ENTRY_FUNCTION(start_zii_imx7d_dev, r0, r1, r2) { + void *fdt; + const unsigned int system_type = get_system_type(); + imx7_cpu_lowlevel_init(); if (IS_ENABLED(CONFIG_DEBUG_LL)) setup_uart(); - imx7d_barebox_entry(__dtb_imx7d_zii_rpu2_start + get_runtime_offset()); + switch (system_type) { + default: + if (IS_ENABLED(CONFIG_DEBUG_LL)) { + relocate_to_current_adr(); + setup_c(); + puts_ll("\n*********************************\n"); + puts_ll("* Unknown system type: "); + puthex_ll(system_type); + puts_ll("\n* Assuming RPU2\n"); + puts_ll("*********************************\n"); + } + /* FALLTHROUGH */ + case ZII_PLATFORM_IMX7D_RPU2: + fdt = __dtb_imx7d_zii_rpu2_start; + break; + case ZII_PLATFORM_IMX7D_RMU2: + fdt = __dtb_imx7d_zii_rmu2_start; + break; + } + + imx7d_barebox_entry(fdt + get_runtime_offset()); } diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index 4c79b98..010408b 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -133,7 +133,7 @@ pbl-dtb-$(CONFIG_MACH_AT91SAM9X5EK) += at91sam9x5ek.dtb.o pbl-dtb-$(CONFIG_MACH_XILINX_ZCU104) += zynqmp-zcu104-revA.dtb.o -pbl-dtb-$(CONFIG_MACH_ZII_IMX7D_DEV) += imx7d-zii-rpu2.dtb.o +pbl-dtb-$(CONFIG_MACH_ZII_IMX7D_DEV) += imx7d-zii-rpu2.dtb.o imx7d-zii-rmu2.dtb.o pbl-dtb-$(CONFIG_MACH_WAGO_PFC_AM35XX) += am35xx-pfc-750_820x.dtb.o pbl-dtb-$(CONFIG_MACH_LS1046ARDB) += fsl-ls1046a-rdb.dtb.o pbl-dtb-$(CONFIG_MACH_TQMLS1046A) += fsl-tqmls1046a-mbls10xxa.dtb.o diff --git a/arch/arm/dts/imx7d-zii-rmu2.dts b/arch/arm/dts/imx7d-zii-rmu2.dts new file mode 100644 index 0000000..1d0d631 --- /dev/null +++ b/arch/arm/dts/imx7d-zii-rmu2.dts @@ -0,0 +1,8 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) + +/* + * Copyright (C) 2019 Zodiac Inflight Innovations + */ + +#include "imx7d-zii-rmu2.dtsi" +#include "imx7d-ddrc.dtsi" diff --git a/arch/arm/dts/imx7d-zii-rmu2.dtsi b/arch/arm/dts/imx7d-zii-rmu2.dtsi new file mode 100644 index 0000000..7b36b1c --- /dev/null +++ b/arch/arm/dts/imx7d-zii-rmu2.dtsi @@ -0,0 +1,361 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* + * Device tree file for ZII's RMU2 board + * + * RMU - Remote Modem Unit + * + * Copyright (C) 2019 Zodiac Inflight Innovations + */ + +/dts-v1/; +#include +#include + +/ { + model = "ZII RMU2 Board"; + compatible = "zii,imx7d-rmu2", "fsl,imx7d"; + + chosen { + stdout-path = &uart2; + }; + + gpio-leds { + compatible = "gpio-leds"; + pinctrl-0 = <&pinctrl_leds_debug>; + pinctrl-names = "default"; + + debug { + label = "zii:green:debug1"; + gpios = <&gpio2 8 GPIO_ACTIVE_HIGH>; + linux,default-trigger = "heartbeat"; + }; + }; +}; + +&cpu0 { + arm-supply = <&sw1a_reg>; +}; + +&ecspi1 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_ecspi1>; + cs-gpios = <&gpio4 19 GPIO_ACTIVE_HIGH>; + status = "okay"; + + flash@0 { + compatible = "jedec,spi-nor"; + spi-max-frequency = <20000000>; + reg = <0>; + #address-cells = <1>; + #size-cells = <1>; + }; +}; + +&fec1 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_enet1>; + assigned-clocks = <&clks IMX7D_ENET1_TIME_ROOT_SRC>, + <&clks IMX7D_ENET1_TIME_ROOT_CLK>; + assigned-clock-parents = <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>; + assigned-clock-rates = <0>, <100000000>; + phy-mode = "rgmii"; + phy-handle = <&fec1_phy>; + status = "okay"; + + mdio { + #address-cells = <1>; + #size-cells = <0>; + + fec1_phy: phy@0 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_enet1_phy_reset>, + <&pinctrl_enet1_phy_interrupt>; + reg = <0>; + interrupt-parent = <&gpio1>; + interrupts = <2 IRQ_TYPE_LEVEL_LOW>; + reset-gpios = <&gpio5 11 GPIO_ACTIVE_LOW>; + }; + }; +}; + +&i2c1 { + clock-frequency = <100000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c1>; + status = "okay"; + + pmic: pmic@8 { + compatible = "fsl,pfuze3000"; + reg = <0x08>; + + regulators { + sw1a_reg: sw1a { + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + regulator-always-on; + regulator-ramp-delay = <6250>; + }; + + sw1c_reg: sw1b { + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <1475000>; + regulator-boot-on; + regulator-always-on; + regulator-ramp-delay = <6250>; + }; + + sw2_reg: sw2 { + regulator-min-microvolt = <1500000>; + regulator-max-microvolt = <1850000>; + regulator-boot-on; + regulator-always-on; + }; + + sw3a_reg: sw3 { + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <1650000>; + regulator-boot-on; + regulator-always-on; + }; + + swbst_reg: swbst { + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5150000>; + }; + + snvs_reg: vsnvs { + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <3000000>; + regulator-boot-on; + regulator-always-on; + }; + + vref_reg: vrefddr { + regulator-boot-on; + regulator-always-on; + }; + + vgen1_reg: vldo1 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + vgen2_reg: vldo2 { + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <1550000>; + regulator-always-on; + }; + + vgen3_reg: vccsd { + regulator-min-microvolt = <2850000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + vgen4_reg: v33 { + regulator-min-microvolt = <2850000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + vgen5_reg: vldo3 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + vgen6_reg: vldo4 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + }; + }; + + eeprom@50 { + compatible = "atmel,24c04"; + reg = <0x50>; + }; + + eeprom@52 { + compatible = "atmel,24c04"; + reg = <0x52>; + }; +}; + +&uart2 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_uart2>; + assigned-clocks = <&clks IMX7D_UART2_ROOT_SRC>; + assigned-clock-parents = <&clks IMX7D_OSC_24M_CLK>; + status = "okay"; +}; + +&uart4 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_uart4>; + assigned-clocks = <&clks IMX7D_UART4_ROOT_SRC>; + assigned-clock-parents = <&clks IMX7D_PLL_SYS_MAIN_240M_CLK>; + status = "okay"; + + rave-sp { + compatible = "zii,rave-sp-rdu2"; + current-speed = <1000000>; + #address-cells = <1>; + #size-cells = <1>; + + watchdog { + compatible = "zii,rave-sp-watchdog"; + }; + + eeprom@a3 { + compatible = "zii,rave-sp-eeprom"; + reg = <0xa3 0x4000>; + #address-cells = <1>; + #size-cells = <1>; + zii,eeprom-name = "main-eeprom"; + }; + }; +}; + +&usbotg2 { + dr_mode = "host"; + disable-over-current; + status = "okay"; +}; + +&usdhc1 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usdhc1>; + bus-width = <4>; + no-1-8-v; + no-sdio; + keep-power-in-suspend; + status = "okay"; +}; + +&usdhc3 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usdhc3>; + bus-width = <8>; + no-1-8-v; + non-removable; + no-sdio; + no-sd; + keep-power-in-suspend; + status = "okay"; +}; + +&wdog1 { + status = "disabled"; +}; + +&snvs_rtc { + status = "disabled"; +}; + +&snvs_pwrkey { + status = "disabled"; +}; + +&iomuxc { + pinctrl_ecspi1: ecspi1grp { + fsl,pins = < + MX7D_PAD_ECSPI1_SCLK__ECSPI1_SCLK 0x2 + MX7D_PAD_ECSPI1_MOSI__ECSPI1_MOSI 0x2 + MX7D_PAD_ECSPI1_MISO__ECSPI1_MISO 0x2 + MX7D_PAD_ECSPI1_SS0__GPIO4_IO19 0x59 + >; + }; + + pinctrl_enet1: enet1grp { + fsl,pins = < + MX7D_PAD_SD2_CD_B__ENET1_MDIO 0x3 + MX7D_PAD_SD2_WP__ENET1_MDC 0x3 + MX7D_PAD_ENET1_RGMII_TXC__ENET1_RGMII_TXC 0x1 + MX7D_PAD_ENET1_RGMII_TD0__ENET1_RGMII_TD0 0x1 + MX7D_PAD_ENET1_RGMII_TD1__ENET1_RGMII_TD1 0x1 + MX7D_PAD_ENET1_RGMII_TD2__ENET1_RGMII_TD2 0x1 + MX7D_PAD_ENET1_RGMII_TD3__ENET1_RGMII_TD3 0x1 + MX7D_PAD_ENET1_RGMII_TX_CTL__ENET1_RGMII_TX_CTL 0x1 + MX7D_PAD_ENET1_RGMII_RXC__ENET1_RGMII_RXC 0x1 + MX7D_PAD_ENET1_RGMII_RD0__ENET1_RGMII_RD0 0x1 + MX7D_PAD_ENET1_RGMII_RD1__ENET1_RGMII_RD1 0x1 + MX7D_PAD_ENET1_RGMII_RD2__ENET1_RGMII_RD2 0x1 + MX7D_PAD_ENET1_RGMII_RD3__ENET1_RGMII_RD3 0x1 + MX7D_PAD_ENET1_RGMII_RX_CTL__ENET1_RGMII_RX_CTL 0x1 + >; + }; + + pinctrl_enet1_phy_reset: enet1phyresetgrp { + fsl,pins = < + MX7D_PAD_SD2_RESET_B__GPIO5_IO11 0x14 + + >; + }; + + pinctrl_i2c1: i2c1grp { + fsl,pins = < + MX7D_PAD_I2C1_SDA__I2C1_SDA 0x4000007f + MX7D_PAD_I2C1_SCL__I2C1_SCL 0x4000007f + >; + }; + + pinctrl_leds_debug: debuggrp { + fsl,pins = < + MX7D_PAD_EPDC_DATA08__GPIO2_IO8 0x59 + >; + }; + + + pinctrl_uart2: uart2grp { + fsl,pins = < + MX7D_PAD_UART2_RX_DATA__UART2_DCE_RX 0x79 + MX7D_PAD_UART2_TX_DATA__UART2_DCE_TX 0x79 + >; + }; + + pinctrl_uart4: uart4grp { + fsl,pins = < + MX7D_PAD_SD2_DATA0__UART4_DCE_RX 0x79 + MX7D_PAD_SD2_DATA1__UART4_DCE_TX 0x79 + >; + }; + + pinctrl_usdhc1: usdhc1grp { + fsl,pins = < + MX7D_PAD_SD1_CMD__SD1_CMD 0x59 + MX7D_PAD_SD1_CLK__SD1_CLK 0x19 + MX7D_PAD_SD1_DATA0__SD1_DATA0 0x59 + MX7D_PAD_SD1_DATA1__SD1_DATA1 0x59 + MX7D_PAD_SD1_DATA2__SD1_DATA2 0x59 + MX7D_PAD_SD1_DATA3__SD1_DATA3 0x59 + >; + }; + + pinctrl_usdhc3: usdhc3grp { + fsl,pins = < + MX7D_PAD_SD3_CMD__SD3_CMD 0x59 + MX7D_PAD_SD3_CLK__SD3_CLK 0x19 + MX7D_PAD_SD3_DATA0__SD3_DATA0 0x59 + MX7D_PAD_SD3_DATA1__SD3_DATA1 0x59 + MX7D_PAD_SD3_DATA2__SD3_DATA2 0x59 + MX7D_PAD_SD3_DATA3__SD3_DATA3 0x59 + MX7D_PAD_SD3_DATA4__SD3_DATA4 0x59 + MX7D_PAD_SD3_DATA5__SD3_DATA5 0x59 + MX7D_PAD_SD3_DATA6__SD3_DATA6 0x59 + MX7D_PAD_SD3_DATA7__SD3_DATA7 0x59 + MX7D_PAD_SD3_RESET_B__SD3_RESET_B 0x59 + >; + }; +}; + +&iomuxc_lpsr { + pinctrl_enet1_phy_interrupt: enet1phyinterruptgrp { + fsl,phy = < + MX7D_PAD_LPSR_GPIO1_IO02__GPIO1_IO2 0x08 + >; + }; +};