The Groboards Giant Board is a ATSAMA5D27C-D1G SiP-based SBC. The board features a 500MHz ARM Cortex-A5 and 128MB DDR2 SDRAM in the SiP as well as a MicroSD slot on the PCB.
barebox doesn't yet support the sama5d2 SDHCI-variant, so board support is limited to toggling the LED and interfacing with the UART, but add this now till the rest may follow. Device tree is based on the vendor's device-tree available at https://github.com/Groboards/giantboard-tools Signed-off-by: Ahmad Fatoum <[email protected]> --- arch/arm/boards/Makefile | 1 + arch/arm/boards/sama5d27-giantboard/Makefile | 1 + .../arm/boards/sama5d27-giantboard/lowlevel.c | 56 ++++ arch/arm/dts/Makefile | 1 + arch/arm/dts/at91-sama5d27_giantboard.dts | 299 ++++++++++++++++++ arch/arm/mach-at91/Kconfig | 8 + images/Makefile.at91 | 4 + 7 files changed, 370 insertions(+) create mode 100644 arch/arm/boards/sama5d27-giantboard/Makefile create mode 100644 arch/arm/boards/sama5d27-giantboard/lowlevel.c create mode 100644 arch/arm/dts/at91-sama5d27_giantboard.dts diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile index 14538af53bf6..9fe458e0a390 100644 --- a/arch/arm/boards/Makefile +++ b/arch/arm/boards/Makefile @@ -113,6 +113,7 @@ obj-$(CONFIG_MACH_RPI_COMMON) += raspberry-pi/ obj-$(CONFIG_MACH_SABRELITE) += freescale-mx6-sabrelite/ obj-$(CONFIG_MACH_SABRESD) += freescale-mx6-sabresd/ obj-$(CONFIG_MACH_FREESCALE_IMX6SX_SABRESDB) += freescale-mx6sx-sabresdb/ +obj-$(CONFIG_MACH_SAMA5D27_GIANTBOARD) += sama5d27-giantboard/ obj-$(CONFIG_MACH_SAMA5D27_SOM1) += sama5d27-som1/ obj-$(CONFIG_MACH_SAMA5D3XEK) += sama5d3xek/ obj-$(CONFIG_MACH_SAMA5D3_XPLAINED) += sama5d3_xplained/ diff --git a/arch/arm/boards/sama5d27-giantboard/Makefile b/arch/arm/boards/sama5d27-giantboard/Makefile new file mode 100644 index 000000000000..b08c4a93ca27 --- /dev/null +++ b/arch/arm/boards/sama5d27-giantboard/Makefile @@ -0,0 +1 @@ +lwl-y += lowlevel.o diff --git a/arch/arm/boards/sama5d27-giantboard/lowlevel.c b/arch/arm/boards/sama5d27-giantboard/lowlevel.c new file mode 100644 index 000000000000..cd762bd9f053 --- /dev/null +++ b/arch/arm/boards/sama5d27-giantboard/lowlevel.c @@ -0,0 +1,56 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2019 Ahmad Fatoum, Pengutronix + */ + +#include <common.h> +#include <init.h> + +#include <asm/barebox-arm-head.h> +#include <asm/barebox-arm.h> +#include <mach/at91_pmc_ll.h> + +#include <mach/hardware.h> +#include <mach/iomux.h> +#include <debug_ll.h> +#include <mach/at91_dbgu.h> + +/* PCK = 492MHz, MCK = 164MHz */ +#define MASTER_CLOCK 164000000 + +#define sama5d2_pmc_enable_periph_clock(clk) \ + at91_pmc_sam9x5_enable_periph_clock(IOMEM(SAMA5D2_BASE_PMC), clk) + +static __always_inline void dbgu_init(void) +{ + unsigned mck = MASTER_CLOCK / 2; + + sama5d2_pmc_enable_periph_clock(SAMA5D2_ID_PIOD); + + at91_mux_pio4_set_A_periph(IOMEM(SAMA5D2_BASE_PIOD), + pin_to_mask(AT91_PIN_PD3)); /* DBGU TXD */ + + sama5d2_pmc_enable_periph_clock(SAMA5D2_ID_UART1); + + at91_dbgu_setup_ll(IOMEM(SAMA5D2_BASE_UART1), mck, 115200); + + putc_ll('>'); +} + +extern char __dtb_z_at91_sama5d27_giantboard_start[]; + +ENTRY_FUNCTION(start_sama5d27_giantboard, r0, r1, r2) +{ + void *fdt; + + arm_cpu_lowlevel_init(); + + arm_setup_stack(SAMA5D2_SRAM_BASE + SAMA5D2_SRAM_SIZE - 16); + + if (IS_ENABLED(CONFIG_DEBUG_LL)) + dbgu_init(); + + fdt = __dtb_z_at91_sama5d27_giantboard_start + get_runtime_offset(); + + barebox_arm_entry(SAMA5_DDRCS, SZ_128M, fdt); +} diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index b1c9a2c7903f..ddfe64e83bdf 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -138,6 +138,7 @@ lwl-dtb-$(CONFIG_MACH_ZII_VF610_DEV) += \ lwl-dtb-$(CONFIG_MACH_AT91SAM9263EK_DT) += at91sam9263ek.dtb.o lwl-dtb-$(CONFIG_MACH_MICROCHIP_KSZ9477_EVB) += at91-microchip-ksz9477-evb.dtb.o lwl-dtb-$(CONFIG_MACH_SAMA5D27_SOM1) += at91-sama5d27_som1_ek.dtb.o +lwl-dtb-$(CONFIG_MACH_SAMA5D27_GIANTBOARD) += at91-sama5d27_giantboard.dtb.o lwl-dtb-$(CONFIG_MACH_AT91SAM9X5EK) += at91sam9x5ek.dtb.o lwl-dtb-$(CONFIG_MACH_XILINX_ZCU104) += zynqmp-zcu104-revA.dtb.o diff --git a/arch/arm/dts/at91-sama5d27_giantboard.dts b/arch/arm/dts/at91-sama5d27_giantboard.dts new file mode 100644 index 000000000000..940379e43005 --- /dev/null +++ b/arch/arm/dts/at91-sama5d27_giantboard.dts @@ -0,0 +1,299 @@ +// SPDX-License-Identifer: GPL-2.0-or-later OR X11 +/* + * at91-sama5d27_giantboard.dts - Device Tree file for SAMA5D27 Giant Board + * + * Copyright (c) 2017, Microchip Technology Inc. + * 2016 Nicolas Ferre <[email protected]> + * 2017 Cristian Birsan <[email protected]> + * 2017 Claudiu Beznea <[email protected]> + * 2019 Ahmad Fatoum <[email protected]> + */ + +/dts-v1/; + +#include <arm/sama5d2.dtsi> +#include <arm/sama5d2-pinfunc.h> +#include <dt-bindings/mfd/atmel-flexcom.h> +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/regulator/active-semi,8945a-regulator.h> + +/ { + model = "Giant Board"; + compatible = "groboards,sama5d27-giantboard", "atmel,sama5d27", "atmel,sama5d2", "atmel,sama5"; + + chosen { + stdout-path = &uart1; + }; + + leds { + compatible = "gpio-leds"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_led_gpio_default>; + + orange { + label = "orange"; + gpios = <&pioA PIN_PA6 GPIO_ACTIVE_HIGH>; + linux,default-trigger = "mmc0"; + }; + }; + + memory { + reg = <0x20000000 0x8000000>; + }; +}; + +&slow_xtal { + clock-frequency = <32768>; +}; + +&main_xtal { + clock-frequency = <24000000>; +}; + +&usb0 { + status = "okay"; +}; + +&sdmmc1 { + bus-width = <4>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_sdmmc1_default>; + status = "okay"; +}; + +&spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_spi0_default>; + status = "disabled"; +}; + +&uart1 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_uart1_default>; + atmel,use-dma-rx; + atmel,use-dma-tx; + status = "okay"; +}; + +&shutdown_controller { + atmel,shdwc-debouncer = <976>; + atmel,wakeup-rtc-timer; + + input@0 { + reg = <0>; + atmel,wakeup-type = "low"; + }; +}; + +&watchdog { + status = "okay"; +}; + +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c0_default>; + dmas = <0>, <0>; +}; + +&i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c1_default>; + dmas = <0>, <0>; + i2c-sda-hold-time-ns = <350>; + status = "okay"; + + pmic@5b { + compatible = "active-semi,act8945a"; + reg = <0x5b>; + active-semi,vsel-low; + + regulators { + vdd_1v8_reg: REG_DCDC1 { + regulator-name = "VDD_1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + + regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_FIXED>, + <ACT8945A_REGULATOR_MODE_LOWPOWER>; + regulator-initial-mode = <ACT8945A_REGULATOR_MODE_FIXED>; + + regulator-state-mem { + regulator-on-in-suspend; + regulator-suspend-min-microvolt=<1850000>; + regulator-suspend-max-microvolt=<1850000>; + regulator-changeable-in-suspend; + regulator-mode=<ACT8945A_REGULATOR_MODE_LOWPOWER>; + }; + }; + + vdd_1v2_reg: REG_DCDC2 { + regulator-name = "VDD_1V2"; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1300000>; + regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_FIXED>, + <ACT8945A_REGULATOR_MODE_LOWPOWER>; + regulator-initial-mode = <ACT8945A_REGULATOR_MODE_FIXED>; + regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + vdd_3v3_reg: REG_DCDC3 { + regulator-name = "VDD_3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_FIXED>, + <ACT8945A_REGULATOR_MODE_LOWPOWER>; + regulator-initial-mode = <ACT8945A_REGULATOR_MODE_FIXED>; + regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + vdd_fuse_reg: REG_LDO1 { + regulator-name = "VDD_FUSE"; + regulator-min-microvolt = <2500000>; + regulator-max-microvolt = <2500000>; + regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_NORMAL>, + <ACT8945A_REGULATOR_MODE_LOWPOWER>; + regulator-initial-mode = <ACT8945A_REGULATOR_MODE_NORMAL>; + regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + vdd_3v3_lp_reg: REG_LDO2 { + regulator-name = "VDD_3V3_LP"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_NORMAL>, + <ACT8945A_REGULATOR_MODE_LOWPOWER>; + regulator-initial-mode = <ACT8945A_REGULATOR_MODE_NORMAL>; + regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + vdd_led_reg: REG_LDO3 { + regulator-name = "VDD_LED"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_NORMAL>, + <ACT8945A_REGULATOR_MODE_LOWPOWER>; + regulator-initial-mode = <ACT8945A_REGULATOR_MODE_NORMAL>; + regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + vdd_sdhc_1v8_reg: REG_LDO4 { + regulator-name = "VDD_SDHC_1V8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-allowed-modes = <ACT8945A_REGULATOR_MODE_NORMAL>, + <ACT8945A_REGULATOR_MODE_LOWPOWER>; + regulator-initial-mode = <ACT8945A_REGULATOR_MODE_NORMAL>; + regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + }; + + charger { + compatible = "active-semi,act8945a-charger"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_charger_chglev &pinctrl_charger_lbo &pinctrl_charger_irq>; + interrupt-parent = <&pioA>; + interrupts = <PIN_PB13 IRQ_TYPE_EDGE_RISING>; + + active-semi,chglev-gpios = <&pioA PIN_PA12 GPIO_ACTIVE_HIGH>; + active-semi,lbo-gpios = <&pioA PIN_PC8 GPIO_ACTIVE_LOW>; + active-semi,input-voltage-threshold-microvolt = <6600>; + active-semi,precondition-timeout = <40>; + active-semi,total-timeout = <3>; + }; + }; +}; + +&adc { + vddana-supply = <&vdd_3v3_reg>; + vref-supply = <&vdd_3v3_reg>; + status = "disabled"; +}; + +&pioA { + pinctrl_i2c0_default: i2c0_default { + pinmux = <PIN_PB31__TWD0>, + <PIN_PC0__TWCK0>; + bias-disable; + }; + + pinctrl_i2c1_default: i2c1_default { + pinmux = <PIN_PD4__TWD1>, + <PIN_PD5__TWCK1>; + bias-disable; + }; + + pinctrl_led_gpio_default: led_gpio_default { + pinmux = <PIN_PA6__GPIO>; + bias-pull-down; + }; + + pinctrl_sdmmc1_default: sdmmc1_default { + cmd_data { + pinmux = <PIN_PA28__SDMMC1_CMD>, + <PIN_PA18__SDMMC1_DAT0>, + <PIN_PA19__SDMMC1_DAT1>, + <PIN_PA20__SDMMC1_DAT2>, + <PIN_PA21__SDMMC1_DAT3>; + bias-pull-up; + }; + + conf-ck_cd { + pinmux = <PIN_PA22__SDMMC1_CK>, + <PIN_PA30__SDMMC1_CD>; + bias-disable; + }; + }; + + pinctrl_spi0_default: spi0_default { + pinmux = <PIN_PA14__SPI0_SPCK>, + <PIN_PA15__SPI0_MOSI>, + <PIN_PA16__SPI0_MISO>; + bias-disable; + }; + + pinctrl_uart1_default: uart1_default { + pinmux = <PIN_PD2__URXD1>, + <PIN_PD3__UTXD1>; + bias-disable; + }; + + pinctrl_charger_chglev: charger_chglev { + pinmux = <PIN_PA12__GPIO>; + bias-disable; + }; + + pinctrl_charger_irq: charger_irq { + pinmux = <PIN_PB13__GPIO>; + bias-disable; + }; + + pinctrl_charger_lbo: charger_lbo { + pinmux = <PIN_PC8__GPIO>; + bias-pull-up; + }; +}; diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 0eb5410664bb..eb14cd2c28da 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -587,6 +587,14 @@ config MACH_SAMA5D27_SOM1 help Select this if you are using Microchip's sama5d27 SoM evaluation kit +config MACH_SAMA5D27_GIANTBOARD + bool "Groboards SAMA5D27 Giant Board" + select SOC_SAMA5D2 + select OFDEVICE + select COMMON_CLK_OF_PROVIDER + help + Select this if you are using the Groboards sama5d27 Giantboard + endif comment "AT91 Board Options" diff --git a/images/Makefile.at91 b/images/Makefile.at91 index f321bdec3696..448d71fb981d 100644 --- a/images/Makefile.at91 +++ b/images/Makefile.at91 @@ -17,3 +17,7 @@ image-$(CONFIG_MACH_MICROCHIP_KSZ9477_EVB) += barebox-microchip-ksz9477-evb.img pblb-$(CONFIG_MACH_SAMA5D27_SOM1) += start_sama5d27_som1_ek FILE_barebox-sama5d27-som1-ek.img = start_sama5d27_som1_ek.pblb image-$(CONFIG_MACH_SAMA5D27_SOM1) += barebox-sama5d27-som1-ek.img + +pblb-$(CONFIG_MACH_SAMA5D27_GIANTBOARD) += start_sama5d27_giantboard +FILE_barebox-groboards-sama5d27-giantboard.img = start_sama5d27_giantboard.pblb +image-$(CONFIG_MACH_SAMA5D27_GIANTBOARD) += barebox-groboards-sama5d27-giantboard.img -- 2.25.1 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
