The Wifx L1 is a SAMA5D4 LoRaWAN gateway. It boots from NAND, but this
can be overridden by inserting a bootable SD-Card.
This first port only provides second-stage SD-Card support. It enables
use of UART, I2C/EEPROM, Ethernet and SD-Card. For NAND use on SAMA5D4,
an updated Linux driver was ported to barebox.
This will follow separately.
Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
arch/arm/boards/Makefile | 1 +
arch/arm/boards/sama5d4_wifx/Makefile | 4 +
arch/arm/boards/sama5d4_wifx/board.c | 38 +++
arch/arm/boards/sama5d4_wifx/lowlevel.c | 18 ++
arch/arm/dts/Makefile | 1 +
arch/arm/dts/at91-sama5d4_wifx_l1.dts | 358 ++++++++++++++++++++++++
arch/arm/dts/sama5d4.dtsi | 9 +
arch/arm/mach-at91/Kconfig | 8 +
images/Makefile.at91 | 4 +
9 files changed, 441 insertions(+)
create mode 100644 arch/arm/boards/sama5d4_wifx/Makefile
create mode 100644 arch/arm/boards/sama5d4_wifx/board.c
create mode 100644 arch/arm/boards/sama5d4_wifx/lowlevel.c
create mode 100644 arch/arm/dts/at91-sama5d4_wifx_l1.dts
create mode 100644 arch/arm/dts/sama5d4.dtsi
diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
index 0f4339ebed5d..f47aea6602a6 100644
--- a/arch/arm/boards/Makefile
+++ b/arch/arm/boards/Makefile
@@ -132,6 +132,7 @@ obj-$(CONFIG_MACH_SAMA5D3XEK) += sama5d3xek/
obj-$(CONFIG_MACH_SAMA5D3_XPLAINED) += sama5d3_xplained/
obj-$(CONFIG_MACH_MICROCHIP_KSZ9477_EVB) += microchip-ksz9477-evb/
obj-$(CONFIG_MACH_SAMA5D4_XPLAINED) += sama5d4_xplained/
+obj-$(CONFIG_MACH_SAMA5D4_WIFX) += sama5d4_wifx/
obj-$(CONFIG_MACH_SAMA5D4EK) += sama5d4ek/
obj-$(CONFIG_MACH_SCB9328) += scb9328/
obj-$(CONFIG_MACH_SEEED_ODYSSEY) += seeed-odyssey/
diff --git a/arch/arm/boards/sama5d4_wifx/Makefile b/arch/arm/boards/sama5d4_wifx/Makefile
new file mode 100644
index 000000000000..5678718188b9
--- /dev/null
+++ b/arch/arm/boards/sama5d4_wifx/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+lwl-y += lowlevel.o
+obj-y += board.o
diff --git a/arch/arm/boards/sama5d4_wifx/board.c b/arch/arm/boards/sama5d4_wifx/board.c
new file mode 100644
index 000000000000..44573da67a39
--- /dev/null
+++ b/arch/arm/boards/sama5d4_wifx/board.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <deep-probe.h>
+#include <bootsource.h>
+#include <driver.h>
+#include <init.h>
+#include <bbu.h>
+#include <of.h>
+
+static int wifx_l1_probe(struct device_d *dev)
+{
+ int flags_sd = 0;
+
+ if (bootsource_get() == BOOTSOURCE_NAND) {
+ of_device_enable_path("/chosen/environment-nand");
+ } else {
+ of_device_enable_path("/chosen/environment-microsd");
+ flags_sd = BBU_HANDLER_FLAG_DEFAULT;
+ }
+
+ bbu_register_std_file_update("sd", flags_sd, "/mnt/mmc1.0/barebox.bin",
+ filetype_arm_barebox);
+
+ return 0;
+}
+
+static const struct of_device_id wifx_l1_of_match[] = {
+ { .compatible = "wifx,l1" },
+ { /* sentinel */ },
+};
+BAREBOX_DEEP_PROBE_ENABLE(wifx_l1_of_match);
+
+static struct driver_d wifx_l1_board_driver = {
+ .name = "board-lxa-mc1",
+ .probe = wifx_l1_probe,
+ .of_compatible = wifx_l1_of_match,
+};
+device_platform_driver(wifx_l1_board_driver);
diff --git a/arch/arm/boards/sama5d4_wifx/lowlevel.c b/arch/arm/boards/sama5d4_wifx/lowlevel.c
new file mode 100644
index 000000000000..0c3529e65965
--- /dev/null
+++ b/arch/arm/boards/sama5d4_wifx/lowlevel.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// SPDX-FileCopyrightText: 2022 Ahmad Fatoum, Pengutronix
+
+#include <debug_ll.h>
+#include <mach/barebox-arm.h>
+#include <mach/ddramc.h>
+
+SAMA5D4_ENTRY_FUNCTION(start_sama5d4_wifx_l1, r4)
+{
+ extern char __dtb_z_at91_sama5d4_wifx_l1_start[];
+ void *fdt;
+
+ putc_ll('>');
+
+ fdt = __dtb_z_at91_sama5d4_wifx_l1_start + get_runtime_offset();
+
+ sama5d4_barebox_entry(r4, fdt);
+}
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 5ceb97129fed..dca13df4ba6f 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -191,6 +191,7 @@ lwl-$(CONFIG_MACH_SAMA5D3_XPLAINED) += at91-sama5d3_xplained.dtb.o
lwl-$(CONFIG_MACH_MICROCHIP_KSZ9477_EVB) += at91-microchip-ksz9477-evb.dtb.o
lwl-$(CONFIG_MACH_SAMA5D27_SOM1) += at91-sama5d27_som1_ek.dtb.o
lwl-$(CONFIG_MACH_SAMA5D27_GIANTBOARD) += at91-sama5d27_giantboard.dtb.o
+lwl-$(CONFIG_MACH_SAMA5D4_WIFX) += at91-sama5d4_wifx_l1.dtb.o
lwl-$(CONFIG_MACH_AT91SAM9X5EK) += at91sam9x5ek.dtb.o
lwl-$(CONFIG_MACH_XILINX_ZCU104) += zynqmp-zcu104-revA.dtb.o
lwl-$(CONFIG_MACH_XILINX_ZCU106) += zynqmp-zcu106-revA.dtb.o
diff --git a/arch/arm/dts/at91-sama5d4_wifx_l1.dts b/arch/arm/dts/at91-sama5d4_wifx_l1.dts
new file mode 100644
index 000000000000..ea16ea21344c
--- /dev/null
+++ b/arch/arm/dts/at91-sama5d4_wifx_l1.dts
@@ -0,0 +1,358 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
+// SPDX-FileCopyrightText: 2021 Wifx
+// SPDX-FileCopyrightText: 2021 Yannick Lanz <yannick.lanz@xxxxxxxx>
+// SPDX-FileCopyrightText: 2022 Ahmad Fatoum, Pengutronix
+
+/dts-v1/;
+
+#include <arm/sama5d4.dtsi>
+#include "sama5d4.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "Wifx L1";
+ compatible = "wifx,l1", "atmel,sama5d4", "atmel,sama5";
+
+ chosen {
+ stdout-path = &usart3;
+
+ environment-microsd {
+ compatible = "barebox,environment";
+ device-path = &mmc1;
+ file-path = "barebox.env";
+ status = "disabled";
+ };
+
+ environment-nand {
+ compatible = "barebox,environment";
+ device-path = &env_nand;
+ status = "disabled";
+ };
+ };
+
+ aliases {
+ rtc0 = &ds1339;
+ rtc1 = &rtc_internal;
+ serial1 = &usart1;
+ serial4 = &usart4;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ status = "okay";
+
+ status_internal {
+ gpios = <&pioE 15 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ };
+ };
+
+ pps {
+ compatible = "pps-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gnss_pps>;
+
+ gpios = <&pioC 24 GPIO_ACTIVE_HIGH>;
+ /* assert-falling-edge; */
+ };
+
+ vddbu_2v_reg: regulator-vddbu-2v {
+ compatible = "regulator-fixed";
+ regulator-name = "VDDBU_2V";
+ regulator-min-microvolt = <2000000>;
+ regulator-max-microvolt = <2000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+};
+
+&slow_xtal {
+ clock-frequency = <32768>;
+};
+
+&main_xtal {
+ clock-frequency = <12000000>;
+};
+
+&spi0 {
+ status = "okay";
+ cs-gpios = <&pioC 3 GPIO_ACTIVE_HIGH>;
+
+ sx1302@0 {
+ compatible = "semtech,sx1301";
+ spi-max-frequency = <10000000>;
+ reg = <0>;
+ };
+};
+
+&i2c0 {
+ status = "okay";
+ clock-frequency = <100000>;
+ i2c-digital-filter;
+ i2c-analog-filter;
+};
+
+&i2c1 {
+ status = "okay";
+ clock-frequency = <400000>;
+ i2c-digital-filter;
+ i2c-analog-filter;
+
+ stts751: temp_sensor@38 {
+ compatible = "stts751";
+ reg = <0x38>;
+ };
+
+ m24c08: eeprom@54 {
+ compatible = "atmel,24c08";
+ reg = <0x54>;
+ pagesize = <16>;
+ };
+
+ mac_at24mac402: eeprom@58 {
+ compatible = "atmel,24mac402";
+ reg = <0x58>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ethaddr: mac-address@9a {
+ reg = <0x9a 6>;
+ };
+ };
+
+ ds1339: rtc@68 {
+ compatible = "dallas,ds1339";
+ reg = <0x68>;
+ trickle-resistor-ohms = <250>;
+ };
+};
+
+&i2c2 {
+ status = "okay";
+ clock-frequency = <400000>;
+ i2c-digital-filter;
+ i2c-analog-filter;
+
+ ec@2a {
+ compatible = "wifx,wgw-ec-i2c";
+ reg = <0x2a>;
+
+ interrupt-parent = <&pioE>;
+ interrupts = <27 IRQ_TYPE_EDGE_RISING>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mcu_irq &pinctrl_mcu_cpu_state>;
+
+ cpu-state-gpios = <&pioA 19 0>;
+
+ usb_typec: usbc {
+ compatible = "wifx,wgw-ec-usbc";
+ #trigger-source-cells = <0>;
+ };
+
+ leds {
+ compatible = "wifx,wgw-ec-leds";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ statusled {
+ reg = <0>;
+ label = "status";
+ max-brightness = <255>;
+ linux,default-trigger = "heartbeat";
+ };
+
+ serviceled {
+ reg = <1>;
+ label = "service";
+ max-brightness = <255>;
+ linux,default-trigger = "wgw-usbc-data-mode";
+ trigger-sources = <&usb_typec>;
+ };
+ };
+ };
+};
+
+&macb0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_macb0_rmii &pinctrl_macb0_phy_irq>;
+ phy-mode = "rmii";
+ phy-handle = <&phy0>;
+ nvmem-cells = <ðaddr>;
+ nvmem-cell-names = "mac-address";
+ status = "okay";
+
+ phy0: ethernet-phy@1 {
+ interrupt-parent = <&pioA>;
+ interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
+ reg = <1>;
+ };
+};
+
+&mmc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mmc1_clk_cmd_dat0 &pinctrl_mmc1_dat1_3 &pinctrl_mmc1_cd>;
+ status = "okay";
+
+ slot@0 {
+ reg = <0>;
+ bus-width = <4>;
+ cd-gpios = <&pioE 3 0>;
+ };
+};
+
+&usart1 {
+ atmel,use-dma-rx;
+ atmel,use-dma-tx;
+ pinctrl-0 = <&pinctrl_usart1>;
+ status = "okay";
+};
+
+&usart3 {
+ atmel,use-dma-rx;
+ atmel,use-dma-tx;
+ status = "okay";
+};
+
+&tcb0 {
+ timer@0 {
+ compatible = "atmel,tcb-timer";
+ reg = <0>;
+ };
+
+ timer@1 {
+ compatible = "atmel,tcb-timer";
+ reg = <1>;
+ };
+};
+
+/* disable unused TCBs */
+&tcb1 {
+ status = "disabled";
+};
+
+&tcb2 {
+ status = "disabled";
+};
+
+&watchdog {
+ status = "okay";
+};
+
+rtc_internal: &{/ahb/apb/rtc@fc0686b0} {
+ status = "okay";
+};
+
+&usb0 {
+ atmel,vbus-gpio = <&pioE 31 GPIO_ACTIVE_HIGH>;
+ atmel,id-gpio = <&pioD 11 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usb_vbus>;
+ status = "okay";
+};
+
+&usb1 {
+ num-ports = <3>;
+ atmel,vbus-gpio = <0 0 0 >;
+ atmel,id-gpio = <&pioD 11 GPIO_ACTIVE_HIGH 0 0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usb_id>;
+ status = "okay";
+};
+
+&usb2 {
+ status = "okay";
+};
+
+&ebi {
+ pinctrl-0 = <&pinctrl_ebi_cs3 &pinctrl_ebi_nrd_nandoe
+ &pinctrl_ebi_nwe_nandwe &pinctrl_ebi_nandrdy
+ &pinctrl_ebi_data_0_7 &pinctrl_ebi_nand_addr>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&nand_controller {
+ status = "okay";
+ atmel,pmecc-cap = <4>;
+ atmel,pmecc-sector-size = <512>;
+
+ nand@3 {
+ reg = <0x3 0x0 0x2>;
+ atmel,rb = <0>;
+ nand-bus-width = <8>;
+ nand-ecc-mode = "hw";
+ nand-on-flash-bbt;
+ label = "atmel_nand";
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ at91bootstrap@0 {
+ label = "at91bootstrap";
+ reg = <0x0 0x40000>;
+ };
+
+ uboot@40000 {
+ label = "uboot";
+ reg = <0x40000 0xC0000>;
+ };
+
+ env_nand: uboot-env@100000 {
+ label = "uboot-env";
+ reg = <0x100000 0x80000>;
+ };
+
+ ubi@180000 {
+ label = "ubi";
+ reg = <0x180000 0x3FE00000>;
+ };
+ };
+ };
+};
+
+&pinctrl {
+ board {
+ pinctrl_mmc1_cd: mmc1_cd {
+ atmel,pins = <AT91_PIOE 3 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+ pinctrl_usb_vbus: usb_vbus {
+ atmel,pins = <AT91_PIOE 31 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+ pinctrl_usb_id: usb_id {
+ atmel,pins = <AT91_PIOD 11 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+ pinctrl_mcu_irq: mcu_irq_0 {
+ atmel,pins = <AT91_PIOE 27 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+ pinctrl_mcu_cpu_state: mcu_cpu_state {
+ atmel,pins = <AT91_PIOA 19 AT91_PERIPH_GPIO (AT91_PINCTRL_OUTPUT | AT91_PINCTRL_OUTPUT_VAL(1))>;
+ };
+ pinctrl_macb0_phy_irq: macb0_phy_irq_0 {
+ atmel,pins = <AT91_PIOA 4 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+ pinctrl_sx130x_rst: sx130x_rst {
+ atmel,pins = <AT91_PIOA 1 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+ pinctrl_rf_front_pwr_en: rf_front_pwr_en {
+ atmel,pins = <AT91_PIOA 1 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+
+ pinctrl_ext_rst: ext_rst {
+ atmel,pins = <AT91_PIOA 17 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+ pinctrl_ext_pwr_en: ext_pwr_en {
+ atmel,pins = <AT91_PIOD 18 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_DOWN>;
+ };
+ pinctrl_ext_boot_n: ext_boot_n {
+ atmel,pins = <AT91_PIOD 19 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+ pinctrl_ext_wake: ext_wake {
+ atmel,pins = <AT91_PIOA 5 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+ };
+ pinctrl_gnss_pps: gnss_pps {
+ atmel,pins = <AT91_PIOC 24 AT91_PERIPH_GPIO AT91_PINCTRL_DEGLITCH>;
+ };
+ };
+};
diff --git a/arch/arm/dts/sama5d4.dtsi b/arch/arm/dts/sama5d4.dtsi
new file mode 100644
index 000000000000..d7dbba667d14
--- /dev/null
+++ b/arch/arm/dts/sama5d4.dtsi
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/ {
+ aliases {
+ mmc0 = &mmc0;
+ mmc1 = &mmc1;
+ };
+};
+
+/delete-node/ &{/memory@20000000};
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 529512b6c0db..22ed71350cb1 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -640,6 +640,14 @@ config MACH_SAMA5D27_GIANTBOARD
help
Select this if you are using the Groboards sama5d27 Giantboard
+config MACH_SAMA5D4_WIFX
+ bool "Wifx L1 LoRaWAN base station"
+ select SOC_SAMA5D4
+ select OFDEVICE
+ select COMMON_CLK_OF_PROVIDER
+ help
+ Select this if you are using the SAMA5D4-based Wifx L1.
+
endif
comment "AT91 Board Options"
diff --git a/images/Makefile.at91 b/images/Makefile.at91
index 71cc959f5d05..c6a6fb697bfe 100644
--- a/images/Makefile.at91
+++ b/images/Makefile.at91
@@ -51,3 +51,7 @@ pblb-$(CONFIG_MACH_SKOV_ARM9CPU) += start_skov_arm9cpu
FILE_barebox-skov-arm9cpu.img = start_skov_arm9cpu.pblb
MAX_PBL_MEMORY_SIZE_start_skov_arm9cpu = 0x12000
image-$(CONFIG_MACH_SKOV_ARM9CPU) += barebox-skov-arm9cpu.img
+
+pblb-$(CONFIG_MACH_SAMA5D4_WIFX) += start_sama5d4_wifx_l1
+FILE_barebox-wifx-l1.img = start_sama5d4_wifx_l1.pblb
+image-$(CONFIG_MACH_SAMA5D4_WIFX) += barebox-wifx-l1.img
--
2.30.2
