Add basic support for the MyirTech MYD-YA15XC-T development board [1].
...
deep-probe: supported due to myir,myc-stm32mp15x
stm32mp-init: detected STM32MP151AAC Rev.Z
STM32 RCC reset reason POR (MP_RSTSR: 0x00000015)
Boot from SD...
psci psci.of: detected version 1.1
stpmic1-i2c stpmic10: PMIC Chip Version: 0x21
stm32-usbphyc [email protected]: registered rev:1.0
nand_base: device found, Manufacturer ID: 0x2c, Chip ID: 0xda
nand_base: Micron MT29F2G08ABAEAWP
nand_base: 256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
Bad block table found at page 131008, version 0x01
Bad block table found at page 130944, version 0x01
nand_read_bbt: bad block at 0x000000d60000
nand_read_bbt: bad block at 0x000000fa0000
nand_read_bbt: bad block at 0x00000d460000
stm32_sdmmc [email protected]: registered as mmc0
mmc0: detected SD card version 2.0
mmc0: registered mmc0
stm32_sdmmc [email protected]: registered as mmc1
stm32-iwdg [email protected]: probed
Product name: MYC-YA151C-256N256D-65-I-T
Product serial: TW202103290400145
malloc space: 0xc7ef7a80 -> 0xcfdef4ff (size 127 MiB)
envfs: no envfs (magic mismatch) - envfs never written?
NOTICE: ubi0: scanning is finished
NOTICE: ubi0: registering /dev/nand0.system.ubi
NOTICE: ubi0: registering kernel as /dev/nand0.system.ubi.kernel
NOTICE: ubi0: registering root as /dev/nand0.system.ubi.root
NOTICE: ubi0: registering bbox as /dev/nand0.system.ubi.bbox
NOTICE: ubi0: attached mtd0 (name "nand0.system", size 237 MiB) to ubi0
NOTICE: ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
NOTICE: ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
NOTICE: ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
NOTICE: ubi0: good PEBs: 1895, bad PEBs: 5, corrupted PEBs: 0
NOTICE: ubi0: user volume: 3, internal volumes: 1, max. volumes count: 128
NOTICE: ubi0: max/mean erase counter: 1/0, WL threshold: 65536, image sequence 
number: 3389077539
NOTICE: ubi0: available PEBs: 529, total reserved PEBs: 1366, PEBs reserved for 
bad PEB handling: 35

Hit m for menu or any to stop autoboot:    2
barebox@MYC-YA151C-256N256D-65-I-T:/
...

[1] https://www.myirtech.com/list.asp?id=659

Signed-off-by: Alexander Shiyan <[email protected]>
---
 arch/arm/boards/Makefile                  |   1 +
 arch/arm/boards/myirtech-stm32/Makefile   |   4 +
 arch/arm/boards/myirtech-stm32/board.c    | 143 +++++++
 arch/arm/boards/myirtech-stm32/lowlevel.c |  27 ++
 arch/arm/dts/Makefile                     |   1 +
 arch/arm/dts/stm32mp15x-myirtech-myc.dtsi | 351 +++++++++++++++++
 arch/arm/dts/stm32mp15x-myirtech-myd.dts  | 458 ++++++++++++++++++++++
 arch/arm/mach-stm32mp/Kconfig             |   7 +
 images/Makefile.stm32mp                   |   2 +
 9 files changed, 994 insertions(+)
 create mode 100644 arch/arm/boards/myirtech-stm32/Makefile
 create mode 100644 arch/arm/boards/myirtech-stm32/board.c
 create mode 100644 arch/arm/boards/myirtech-stm32/lowlevel.c
 create mode 100644 arch/arm/dts/stm32mp15x-myirtech-myc.dtsi
 create mode 100644 arch/arm/dts/stm32mp15x-myirtech-myd.dts

diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
index 83a3179185..2ff10329b2 100644
--- a/arch/arm/boards/Makefile
+++ b/arch/arm/boards/Makefile
@@ -140,6 +140,7 @@ obj-$(CONFIG_MACH_SOLIDRUN_MICROSOM)                += 
solidrun-microsom/
 obj-$(CONFIG_MACH_STM32MP15XX_DKX)             += stm32mp15xx-dkx/
 obj-$(CONFIG_MACH_STM32MP13XX_DK)              += stm32mp13xx-dk/
 obj-$(CONFIG_MACH_LXA_MC1)                     += lxa-mc1/
+obj-$(CONFIG_MACH_MYIRTECH_STM32MP1)           += myirtech-stm32/
 obj-$(CONFIG_MACH_STM32MP15X_EV1)              += stm32mp15x-ev1/
 obj-$(CONFIG_MACH_TECHNEXION_PICO_HOBBIT)      += technexion-pico-hobbit/
 obj-$(CONFIG_MACH_TECHNEXION_WANDBOARD)                += technexion-wandboard/
diff --git a/arch/arm/boards/myirtech-stm32/Makefile 
b/arch/arm/boards/myirtech-stm32/Makefile
new file mode 100644
index 0000000000..511d4971fa
--- /dev/null
+++ b/arch/arm/boards/myirtech-stm32/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/myirtech-stm32/board.c 
b/arch/arm/boards/myirtech-stm32/board.c
new file mode 100644
index 0000000000..187a3b8a59
--- /dev/null
+++ b/arch/arm/boards/myirtech-stm32/board.c
@@ -0,0 +1,143 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <bootsource.h>
+#include <common.h>
+#include <deep-probe.h>
+#include <envfs.h>
+#include <environment.h>
+#include <globalvar.h>
+#include <init.h>
+#include <machine_id.h>
+#include <net.h>
+#include <of.h>
+#include <mach/stm32mp/bbu.h>
+
+struct id_eeprom {
+       u8 hrcw_primary[0x10];
+       u8 pn[64];
+       u8 sn[64];
+       u8 mac0[6];
+       u8 mac1[6];
+} __packed;
+
+static int stm32mp15x_myirtech_serial_fixup(struct device_node *root, void 
*unused)
+{
+       char *serial;
+
+       serial = basprintf("%s", getenv("global.machine_id"));
+       of_set_property(root, "serial-number", serial, strlen(serial) + 1, 1);
+       free(serial);
+
+       return 0;
+}
+
+static int stm32mp15x_myirtech_eeprom_init(void)
+{
+       struct id_eeprom eeprom;
+       struct cdev *cdev;
+       char str[64];
+       int len;
+
+       if (!of_machine_is_compatible("myir,myc-stm32mp15x"))
+               return 0;
+
+       cdev = cdev_by_name("eeprom0");
+       if (!cdev) {
+               pr_err("Can't find EEPROM\n");
+               return -ENODEV;
+       }
+
+       if (cdev_read(cdev, &eeprom, sizeof(eeprom), 0, 0) < 0) {
+               pr_err("Can't read EEPROM\n");
+               return -EIO;
+       }
+
+       len = (eeprom.pn[0] - '0');
+       if ((len < 8) || (len > 64)) {
+               pr_err("Unable to get product name\n");
+               return -EINVAL;
+       }
+
+       strncpy(str, &eeprom.pn[1], len);
+       str[len] = '\0';
+       pr_info("Product name: %s\n", str);
+       globalvar_add_simple("model", str);
+
+       len = (eeprom.sn[0] - '0');
+       if ((len < 8) || (len > 64)) {
+               pr_err("Unable to get product serial\n");
+               return -EINVAL;
+       }
+
+       strncpy(str, &eeprom.sn[1], len);
+       str[len] = '\0';
+       pr_info("Product serial: %s\n", str);
+       machine_id_set_hashable(str, len);
+       of_register_fixup(stm32mp15x_myirtech_serial_fixup, NULL);
+
+       if (!is_valid_ether_addr(eeprom.mac0)) {
+               int i, j;
+
+               /* Make fixed MAC-address based on serial number */
+               memcpy(eeprom.mac0, str, sizeof(eeprom.mac0));
+               for (i = sizeof(eeprom.mac0); i < len; i++)
+                       for (j = 0; j < sizeof(eeprom.mac0); j++)
+                               eeprom.mac0[j] ^= str[i];
+       }
+
+       eth_register_ethaddr(0, eeprom.mac0);
+
+       return 0;
+}
+of_populate_initcall(stm32mp15x_myirtech_eeprom_init);
+
+static int stm32mp15x_myirtech_probe(struct device *dev)
+{
+       int instance = bootsource_get_instance(), def = -1;
+       const enum bootsource bs = bootsource_get();
+
+       barebox_set_hostname("myir-stm32");
+
+       switch (bs) {
+       case BOOTSOURCE_MMC:
+               if (instance == 0) {
+                       of_device_enable_path("/chosen/environment-sd");
+                       pr_info("Boot from SD...\n");
+               } else {
+                       of_device_enable_path("/chosen/environment-emmc");
+                       pr_info("Boot from eMMC...\n");
+               }
+               def = instance;
+               break;
+       case BOOTSOURCE_NAND:
+               of_device_enable_path("/chosen/environment-nand");
+               pr_info("Boot from NAND...\n");
+               def = 2;
+               break;
+       default:
+               return 0;
+       }
+
+       stm32mp_bbu_mmc_register_handler("sd", "/dev/mmc0.ssbl",
+                                        (def == 0) ? BBU_HANDLER_FLAG_DEFAULT 
: 0);
+
+       stm32mp_bbu_mmc_register_handler("emmc", "/dev/mmc1.ssbl",
+                                        (def == 1) ? BBU_HANDLER_FLAG_DEFAULT 
: 0);
+
+       //TODO: NAND
+
+       return 0;
+}
+
+static const struct of_device_id stm32mp15x_myirtech_of_match[] = {
+       { .compatible = "myir,myc-stm32mp15x" },
+       { },
+};
+BAREBOX_DEEP_PROBE_ENABLE(stm32mp15x_myirtech_of_match);
+
+static struct driver stm32mp15x_myirtech_board_driver = {
+       .name = "board-myirtech-stm32",
+       .probe = stm32mp15x_myirtech_probe,
+       .of_compatible = stm32mp15x_myirtech_of_match,
+};
+device_platform_driver(stm32mp15x_myirtech_board_driver);
diff --git a/arch/arm/boards/myirtech-stm32/lowlevel.c 
b/arch/arm/boards/myirtech-stm32/lowlevel.c
new file mode 100644
index 0000000000..715a8eeb96
--- /dev/null
+++ b/arch/arm/boards/myirtech-stm32/lowlevel.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <common.h>
+#include <mach/stm32mp/entry.h>
+#include <debug_ll.h>
+
+extern char __dtb_z_stm32mp15x_myirtech_myd_start[];
+
+static void setup_uart(void)
+{
+       /* first stage has set up the UART, so nothing to do here */
+       putc_ll('>');
+}
+
+ENTRY_FUNCTION(start_stm32mp15x_myir, r0, r1, r2)
+{
+       void *fdt;
+
+       stm32mp_cpu_lowlevel_init();
+
+       if (IS_ENABLED(CONFIG_DEBUG_LL))
+               setup_uart();
+
+       fdt = __dtb_z_stm32mp15x_myirtech_myd_start + get_runtime_offset();
+
+       stm32mp1_barebox_entry(fdt);
+}
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 81e11bb6a3..b882c4942b 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -143,6 +143,7 @@ lwl-$(CONFIG_MACH_SEEED_ODYSSEY) += 
stm32mp157c-odyssey.dtb.o
 lwl-$(CONFIG_MACH_STM32MP15XX_DKX) += stm32mp157c-dk2.dtb.o 
stm32mp157a-dk1.dtb.o
 lwl-$(CONFIG_MACH_STM32MP13XX_DK) += stm32mp135f-dk.dtb.o
 lwl-$(CONFIG_MACH_LXA_MC1) += stm32mp157c-lxa-mc1.dtb.o
+lwl-$(CONFIG_MACH_MYIRTECH_STM32MP1) += stm32mp15x-myirtech-myd.dtb.o
 lwl-$(CONFIG_MACH_STM32MP15X_EV1) += stm32mp157c-ev1.dtb.o
 lwl-$(CONFIG_MACH_SCB9328) += imx1-scb9328.dtb.o
 lwl-$(CONFIG_MACH_TECHNEXION_WANDBOARD) += imx6q-wandboard.dtb.o 
imx6dl-wandboard.dtb.o
diff --git a/arch/arm/dts/stm32mp15x-myirtech-myc.dtsi 
b/arch/arm/dts/stm32mp15x-myirtech-myc.dtsi
new file mode 100644
index 0000000000..7f843ad2ab
--- /dev/null
+++ b/arch/arm/dts/stm32mp15x-myirtech-myc.dtsi
@@ -0,0 +1,351 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* SPDX-FileCopyrightText: Alexander Shiyan, <[email protected]> */
+
+#include <arm/stm32mp151.dtsi>
+#include <arm/stm32mp15-pinctrl.dtsi>
+#include <arm/stm32mp15xxac-pinctrl.dtsi>
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/mfd/st,stpmic1.h>
+
+/ {
+       model = "MYIR MYC-YA15XC-T";
+       compatible = "myir,myc-stm32mp15x", "st,stm32mp151";
+
+       aliases {
+               i2c0 = &i2c1;
+               i2c1 = &i2c2;
+               i2c2 = &i2c3;
+               i2c3 = &i2c4;
+               i2c4 = &i2c5;
+               i2c5 = &i2c6;
+       };
+
+       memory@c0000000 {
+               device_type = "memory";
+               reg = <0xc0000000 0x10000000>;
+       };
+
+       reserved-memory {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               ranges;
+
+               mcuram2: mcuram2@10000000 {
+                       compatible = "shared-dma-pool";
+                       reg = <0x10000000 0x40000>;
+                       no-map;
+               };
+
+               vdev0vring0: vdev0vring0@10040000 {
+                       compatible = "shared-dma-pool";
+                       reg = <0x10040000 0x1000>;
+                       no-map;
+               };
+
+               vdev0vring1: vdev0vring1@10041000 {
+                       compatible = "shared-dma-pool";
+                       reg = <0x10041000 0x1000>;
+                       no-map;
+               };
+
+               vdev0buffer: vdev0buffer@10042000 {
+                       compatible = "shared-dma-pool";
+                       reg = <0x10042000 0x4000>;
+                       no-map;
+               };
+
+               mcuram: mcuram@30000000 {
+                       compatible = "shared-dma-pool";
+                       reg = <0x30000000 0x40000>;
+                       no-map;
+               };
+
+               retram: retram@38000000 {
+                       compatible = "shared-dma-pool";
+                       reg = <0x38000000 0x10000>;
+                       no-map;
+               };
+
+               optee: optee@0xde000000 {
+                       reg = <0xde000000 0x02000000>;
+                       no-map;
+               };
+       };
+
+       vin_som: vin_som {
+               compatible = "regulator-fixed";
+               regulator-name = "vin_som";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               regulator-always-on;
+       };
+
+       leds: leds {
+               compatible = "gpio-leds";
+
+               led_cpu: led_cpu {
+                       label = "som:cpu";
+                       color = <LED_COLOR_ID_BLUE>;
+                       default-state = "off";
+                       function = LED_FUNCTION_CPU;
+                       gpios = <&gpioa 13 (GPIO_ACTIVE_LOW | GPIO_PUSH_PULL)>;
+                       linux,default-trigger = LED_FUNCTION_CPU;
+               };
+       };
+};
+
+&bsec {
+       board_id: board_id@ec {
+               reg = <0xec 0x4>;
+               st,non-secure-otp;
+       };
+};
+
+&cpu0 {
+       cpu-supply = <&vddcore>;
+};
+
+&dts {
+       status = "okay";
+};
+
+&fmc {
+       pinctrl-names = "default", "sleep";
+       pinctrl-0 = <&fmc_pins_a>;
+       pinctrl-1 = <&fmc_sleep_pins_a>;
+       status = "okay";
+
+       nand-controller@4,0 {
+               status = "okay";
+
+               nand@0 {
+                       reg = <0>;
+                       nand-on-flash-bbt;
+                       nand-ecc-strength = <4>;
+                       nand-ecc-step-size = <512>;
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       nand_parts: partitions {
+                               compatible = "fixed-partitions";
+                               #address-cells = <1>;
+                               #size-cells = <1>;
+
+                               partition@0 {
+                                       label = "fsbl1";
+                                       reg = <0x0 0x80000>;
+                               };
+
+                               partition@80000 {
+                                       label = "fsbl2";
+                                       reg = <0x80000 0x80000>;
+                               };
+
+                               partition@100000 {
+                                       label = "matadata1";
+                                       reg = <0x100000 0x80000>;
+                               };
+
+                               partition@180000 {
+                                       label = "matadata2";
+                                       reg = <0x180000 0x80000>;
+                               };
+
+                               partition@200000 {
+                                       label = "fip-a1";
+                                       reg = <0x200000 0x400000>;
+                               };
+
+                               partition@600000 {
+                                       label = "fip-a2";
+                                       reg = <0x600000 0x400000>;
+                               };
+
+                               partition@a00000 {
+                                       label = "fip-b1";
+                                       reg = <0xa00000 0x400000>;
+                               };
+
+                               partition@e00000 {
+                                       label = "fip-b2";
+                                       reg = <0xe00000 0x400000>;
+                               };
+
+                               partition@1200000 {
+                                       label = "system";
+                                       reg = <0x01200000 0>;
+                               };
+                       };
+               };
+       };
+};
+
+&i2c4 {
+       pinctrl-names = "default", "sleep";
+       pinctrl-0 = <&i2c4_pins_a>;
+       pinctrl-1 = <&i2c4_sleep_pins_a>;
+       clock-frequency = <400000>;
+       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";
+                       buck1-supply = <&vin_som>;
+                       buck2-supply = <&vin_som>;
+                       buck3-supply = <&vin_som>;
+                       buck4-supply = <&vin_som>;
+                       ldo1-supply = <&v3v3>;
+                       ldo4-supply = <&vin_som>;
+                       vref_ddr-supply = <&vin_som>;
+                       boost-supply = <&vin_som>;
+                       pwr_sw1-supply = <&bst_out>;
+                       pwr_sw2-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>;
+                       };
+
+                       vdda: ldo1 {
+                               regulator-name = "vdda";
+                               regulator-min-microvolt = <1700000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-always-on;
+                       };
+
+                       vtt_ddr: ldo3 {
+                               regulator-name = "vtt_ddr";
+                               regulator-always-on;
+                       };
+
+                       vdd_usb: ldo4 {
+                               regulator-name = "vdd_usb";
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                       };
+
+                       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;
+                       };
+               };
+
+               onkey: onkey {
+                       compatible = "st,stpmic1-onkey";
+                       interrupts = <IT_PONKEY_F 0>, <IT_PONKEY_R 0>;
+                       interrupt-names = "onkey-falling", "onkey-rising";
+                       power-off-time-sec = <10>;
+               };
+       };
+
+       eeprom: eeprom@50 {
+               compatible = "atmel,24c32";
+               reg = <0x50>;
+               pagesize = <32>;
+               num-addresses = <8>;
+               wp-gpios = <&gpioa 14 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+       };
+};
+
+&ipcc {
+       status = "okay";
+};
+
+&iwdg2 {
+       timeout-sec = <32>;
+       status = "okay";
+};
+
+&m4_rproc {
+       memory-region = <&retram>, <&mcuram>, <&mcuram2>, <&vdev0vring0>,
+                       <&vdev0vring1>, <&vdev0buffer>;
+       mboxes = <&ipcc 0>, <&ipcc 1>, <&ipcc 2>, <&ipcc 3>;
+       mbox-names = "vq0", "vq1", "shutdown", "detach";
+       interrupt-parent = <&exti>;
+       interrupts = <68 IRQ_TYPE_EDGE_RISING>;
+       status = "okay";
+};
+
+&pwr_regulators {
+       vdd-supply = <&vdd>;
+       vdd_3v3_usbfs-supply = <&vdd_usb>;
+};
+
+&rng1 {
+       status = "okay";
+};
+
+&rtc {
+       status = "okay";
+};
+
+&sdmmc2 {
+       pinctrl-names = "default", "opendrain", "sleep";
+       pinctrl-0 = <&sdmmc2_b4_pins_a &sdmmc2_d47_pins_a>;
+       pinctrl-1 = <&sdmmc2_b4_od_pins_a &sdmmc2_d47_pins_a>;
+       pinctrl-2 = <&sdmmc2_b4_sleep_pins_a &sdmmc2_d47_sleep_pins_a>;
+       non-removable;
+       no-sd;
+       no-sdio;
+       st,neg-edge;
+       bus-width = <8>;
+       vmmc-supply = <&v3v3>;
+       vqmmc-supply = <&vdd>;
+       mmc-ddr-3_3v;
+       status = "okay";
+};
diff --git a/arch/arm/dts/stm32mp15x-myirtech-myd.dts 
b/arch/arm/dts/stm32mp15x-myirtech-myd.dts
new file mode 100644
index 0000000000..b15a4312d4
--- /dev/null
+++ b/arch/arm/dts/stm32mp15x-myirtech-myd.dts
@@ -0,0 +1,458 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* SPDX-FileCopyrightText: Alexander Shiyan, <[email protected]> */
+
+/dts-v1/;
+
+#include "stm32mp15x-myirtech-myc.dtsi"
+
+#include <dt-bindings/net/qca-ar803x.h>
+
+/ {
+       model = "MYIR MYD-YA15XC-T";
+       compatible = "myir,myd-stm32mp15x", "myir,myc-stm32mp15x", 
"st,stm32mp151";
+
+       aliases {
+               ethernet0 = &ethernet0;
+               serial0 = &uart4;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       backlight: backlight {
+               compatible = "pwm-backlight";
+               pwms = <&pwm2 0 100000 0>;
+               brightness-levels = <0 255>;
+               num-interpolated-steps = <256>;
+               default-brightness-level = <255>;
+       };
+
+       panel: panel {
+               compatible = "panel-lvds";
+               backlight = <&backlight>;
+               data-mapping = "vesa-24";
+               enable-gpios = <&gpioi 3 (GPIO_ACTIVE_HIGH | GPIO_PUSH_PULL)>;
+               power-supply = <&vdd_3v3>;
+               height-mm = <0>;
+               width-mm = <0>;
+
+               port {
+                       panel_in: endpoint {
+                               remote-endpoint = <&ltdc_ep0_out>;
+                       };
+               };
+       };
+
+       vin: vin {
+               compatible = "regulator-fixed";
+               regulator-name = "vin";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               regulator-always-on;
+       };
+
+       vdd_3v3: vdd_3v3 {
+               compatible = "regulator-fixed";
+               regulator-name = "vdd_3v3";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-always-on;
+               vin-supply = <&v3v3>;
+       };
+};
+
+&leds {
+       led_live: led_live {
+               label = "board:live";
+               color = <LED_COLOR_ID_BLUE>;
+               default-state = "off";
+               function = LED_FUNCTION_HEARTBEAT;
+               gpios = <&extgpio 4 GPIO_ACTIVE_LOW>;
+               linux,default-trigger = LED_FUNCTION_HEARTBEAT;
+               panic-indicator;
+       };
+};
+
+&vin_som {
+       vin-supply = <&vin>;
+};
+
+&i2c2 {
+       pinctrl-names = "default", "sleep";
+       pinctrl-0 = <&i2c2_pins &i2c2_pins_z>;
+       pinctrl-1 = <&i2c2_sleep_pins &i2c2_sleep_pins_z>;
+       clock-frequency = <400000>;
+       status = "okay";
+
+       extgpio: pcf8575@20 {
+               compatible = "nxp,pcf8575";
+               reg = <0x20>;
+               gpio-controller;
+               #gpio-cells = <2>;
+       };
+
+       typec: stusb1600@28 {
+               pinctrl-names = "default";
+               pinctrl-0 = <&stusb1600_pins>;
+               compatible = "st,stusb1600";
+               reg = <0x28>;
+               interrupt-parent = <&gpioa>;
+               interrupts = <10 IRQ_TYPE_EDGE_FALLING>;
+               vdd-supply = <&vin>;
+
+               connector {
+                       compatible = "usb-c-connector";
+                       label = "USB-C";
+                       power-role = "dual";
+                       power-opmode = "default";
+
+                       port {
+                               con_usbotg_hs_ep: endpoint {
+                                       remote-endpoint = <&usbotg_hs_ep>;
+                               };
+                       };
+               };
+       };
+
+       rx8025: rtc@32 {
+               compatible = "epson,rx8025";
+               reg = <0x32>;
+       };
+};
+
+&ethernet0 {
+       pinctrl-0 = <&ethernet0_rgmii_pins_a>;
+       pinctrl-1 = <&ethernet0_rgmii_sleep_pins_a>;
+       pinctrl-names = "default", "sleep";
+       max-speed = <1000>;
+       phy-handle = <&phy0>;
+       phy-mode = "rgmii-id";
+       status = "okay";
+
+       mdio {
+               compatible = "snps,dwmac-mdio";
+               reset-gpios = <&gpiog 3 (GPIO_ACTIVE_LOW | GPIO_PUSH_PULL)>;
+               reset-delay-us = <10000>;
+               reset-post-delay-us = <2000>;
+
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               phy0: ethernet-phy@6 {
+                       reg = <6>;
+                       qca,clk-out-frequency = <125000000>;
+                       qca,clk-out-strength = <AR803X_STRENGTH_FULL>;
+               };
+       };
+};
+
+&ltdc {
+       pinctrl-names = "default", "sleep";
+       pinctrl-0 = <&ltdc_pins>;
+       pinctrl-1 = <&ltdc_sleep_pins>;
+       status = "okay";
+
+       port {
+               ltdc_ep0_out: endpoint@0 {
+                       reg = <0>;
+                       remote-endpoint = <&panel_in>;
+               };
+       };
+};
+
+&sai1 {
+       pinctrl-names = "default", "sleep";
+       pinctrl-0 = <&sai1_pins>;
+       pinctrl-1 = <&sai1_sleep_pins>;
+       clocks = <&rcc SAI1>, <&rcc PLL3_Q>, <&rcc PLL3_R>;
+       clock-names = "pclk", "x8k", "x11k";
+       status = "okay";
+};
+
+&sdmmc1 {
+       pinctrl-names = "default", "opendrain", "sleep";
+       pinctrl-0 = <&sdmmc1_b4_pins_a>;
+       pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
+       pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>;
+       cd-gpios = <&gpioa 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+       disable-wp;
+       st,neg-edge;
+       vmmc-supply = <&vdd>;
+       status = "okay";
+};
+
+&spi5 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&spi5_pins>;
+       cs-gpios = <&gpioh 5 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+                  <&gpiof 13 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+       status = "okay";
+};
+
+&timers2 {
+       status = "okay";
+
+       pwm2: pwm {
+               pinctrl-names = "default", "sleep";
+               pinctrl-0 = <&tim2_pwm_pins>;
+               pinctrl-1 = <&tim2_pwm_sleep_pins>;
+               status = "okay";
+       };
+};
+
+&uart4 {
+       pinctrl-names = "default", "sleep", "idle";
+       pinctrl-0 = <&uart4_pins>;
+       pinctrl-1 = <&uart4_sleep_pins>;
+       pinctrl-2 = <&uart4_idle_pins>;
+       status = "okay";
+};
+
+&usbh_ehci {
+       phys = <&usbphyc_port0>;
+       phy-names = "usb";
+       status = "okay";
+};
+
+&usbotg_hs {
+       phys = <&usbphyc_port1 0>;
+       phy-names = "usb2-phy";
+       usb-role-switch;
+       vbus-supply = <&vbus_otg>;
+       status = "okay";
+
+       port {
+               usbotg_hs_ep: endpoint {
+                       remote-endpoint = <&con_usbotg_hs_ep>;
+               };
+       };
+};
+
+&usbphyc {
+       status = "okay";
+};
+
+&usbphyc_port0 {
+       phy-supply = <&vdd_usb>;
+       st,tune-hs-dc-level = <2>;
+       st,enable-fs-rftime-tuning;
+       st,enable-hs-rftime-reduction;
+       st,trim-hs-current = <15>;
+       st,trim-hs-impedance = <1>;
+       st,tune-squelch-level = <3>;
+       st,tune-hs-rx-offset = <2>;
+       st,no-lsfs-sc;
+
+       connector {
+               compatible = "usb-a-connector";
+               vbus-supply = <&vin>;
+       };
+};
+
+&usbphyc_port1 {
+       phy-supply = <&vdd_usb>;
+       st,tune-hs-dc-level = <2>;
+       st,enable-fs-rftime-tuning;
+       st,enable-hs-rftime-reduction;
+       st,trim-hs-current = <15>;
+       st,trim-hs-impedance = <1>;
+       st,tune-squelch-level = <3>;
+       st,tune-hs-rx-offset = <2>;
+       st,no-lsfs-sc;
+};
+
+&pinctrl {
+       i2c2_pins: i2c2-0 {
+               pins {
+                       pinmux = <STM32_PINMUX('H', 4, AF4)>;           /* 
I2C2_SCL */
+                       bias-disable;
+                       drive-open-drain;
+                       slew-rate = <0>;
+               };
+       };
+
+       i2c2_sleep_pins: i2c2-sleep-0 {
+               pins {
+                       pinmux = <STM32_PINMUX('H', 4, ANALOG)>;        /* 
I2C2_SCL */
+               };
+       };
+
+       ltdc_pins: ltdc-0 {
+               pins {
+                       pinmux = <STM32_PINMUX('G',  7, AF14)>,         /* 
LCD_CLK */
+                                <STM32_PINMUX('I', 10, AF14)>,         /* 
LCD_HSYNC */
+                                <STM32_PINMUX('I',  9, AF14)>,         /* 
LCD_VSYNC */
+                                <STM32_PINMUX('E', 13, AF14)>,         /* 
LCD_DE */
+                                <STM32_PINMUX('H',  2, AF14)>,         /* 
LCD_R0 */
+                                <STM32_PINMUX('H',  3, AF14)>,         /* 
LCD_R1 */
+                                <STM32_PINMUX('H',  8, AF14)>,         /* 
LCD_R2 */
+                                <STM32_PINMUX('H',  9, AF14)>,         /* 
LCD_R3 */
+                                <STM32_PINMUX('H', 10, AF14)>,         /* 
LCD_R4 */
+                                <STM32_PINMUX('H', 11, AF14)>,         /* 
LCD_R5 */
+                                <STM32_PINMUX('H', 12, AF14)>,         /* 
LCD_R6 */
+                                <STM32_PINMUX('E', 15, AF14)>,         /* 
LCD_R7 */
+                                <STM32_PINMUX('E', 14, AF14)>,         /* 
LCD_G0 */
+                                <STM32_PINMUX('E',  6, AF14)>,         /* 
LCD_G1 */
+                                <STM32_PINMUX('H', 13, AF14)>,         /* 
LCD_G2 */
+                                <STM32_PINMUX('H', 14, AF14)>,         /* 
LCD_G3 */
+                                <STM32_PINMUX('H', 15, AF14)>,         /* 
LCD_G4 */
+                                <STM32_PINMUX('I',  0, AF14)>,         /* 
LCD_G5 */
+                                <STM32_PINMUX('I',  1, AF14)>,         /* 
LCD_G6 */
+                                <STM32_PINMUX('I',  2, AF14)>,         /* 
LCD_G7 */
+                                <STM32_PINMUX('D',  9, AF14)>,         /* 
LCD_B0 */
+                                <STM32_PINMUX('G', 12, AF14)>,         /* 
LCD_B1 */
+                                <STM32_PINMUX('G', 10, AF14)>,         /* 
LCD_B2 */
+                                <STM32_PINMUX('D', 10, AF14)>,         /* 
LCD_B3 */
+                                <STM32_PINMUX('I',  4, AF14)>,         /* 
LCD_B4 */
+                                <STM32_PINMUX('I',  5, AF14)>,         /* 
LCD_B5 */
+                                <STM32_PINMUX('I',  6, AF14)>,         /* 
LCD_B6 */
+                                <STM32_PINMUX('I',  7, AF14)>;         /* 
LCD_B7 */
+                       bias-disable;
+                       drive-push-pull;
+                       slew-rate = <1>;
+               };
+       };
+
+       ltdc_sleep_pins: ltdc-sleep-0 {
+               pins {
+                       pinmux = <STM32_PINMUX('G',  7, ANALOG)>,       /* 
LCD_CLK */
+                                <STM32_PINMUX('I', 10, ANALOG)>,       /* 
LCD_HSYNC */
+                                <STM32_PINMUX('I',  9, ANALOG)>,       /* 
LCD_VSYNC */
+                                <STM32_PINMUX('E', 13, ANALOG)>,       /* 
LCD_DE */
+                                <STM32_PINMUX('H',  2, ANALOG)>,       /* 
LCD_R0 */
+                                <STM32_PINMUX('H',  3, ANALOG)>,       /* 
LCD_R1 */
+                                <STM32_PINMUX('H',  8, ANALOG)>,       /* 
LCD_R2 */
+                                <STM32_PINMUX('H',  9, ANALOG)>,       /* 
LCD_R3 */
+                                <STM32_PINMUX('H', 10, ANALOG)>,       /* 
LCD_R4 */
+                                <STM32_PINMUX('H', 11, ANALOG)>,       /* 
LCD_R5 */
+                                <STM32_PINMUX('H', 12, ANALOG)>,       /* 
LCD_R6 */
+                                <STM32_PINMUX('E', 15, ANALOG)>,       /* 
LCD_R7 */
+                                <STM32_PINMUX('E', 14, ANALOG)>,       /* 
LCD_G0 */
+                                <STM32_PINMUX('E',  6, ANALOG)>,       /* 
LCD_G1 */
+                                <STM32_PINMUX('H', 13, ANALOG)>,       /* 
LCD_G2 */
+                                <STM32_PINMUX('H', 14, ANALOG)>,       /* 
LCD_G3 */
+                                <STM32_PINMUX('H', 15, ANALOG)>,       /* 
LCD_G4 */
+                                <STM32_PINMUX('I',  0, ANALOG)>,       /* 
LCD_G5 */
+                                <STM32_PINMUX('I',  1, ANALOG)>,       /* 
LCD_G6 */
+                                <STM32_PINMUX('I',  2, ANALOG)>,       /* 
LCD_G7 */
+                                <STM32_PINMUX('D',  9, ANALOG)>,       /* 
LCD_B0 */
+                                <STM32_PINMUX('G', 12, ANALOG)>,       /* 
LCD_B1 */
+                                <STM32_PINMUX('G', 10, ANALOG)>,       /* 
LCD_B2 */
+                                <STM32_PINMUX('D', 10, ANALOG)>,       /* 
LCD_B3 */
+                                <STM32_PINMUX('I',  4, ANALOG)>,       /* 
LCD_B4 */
+                                <STM32_PINMUX('I',  5, ANALOG)>,       /* 
LCD_B5 */
+                                <STM32_PINMUX('I',  6, ANALOG)>,       /* 
LCD_B6 */
+                                <STM32_PINMUX('I',  7, ANALOG)>;       /* 
LCD_B7 */
+               };
+       };
+
+       sai1_pins: sai1-0 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('B', 2, AF6)>,           /* 
SAI1_SD_A */
+                                <STM32_PINMUX('F', 8, AF6)>,           /* 
SAI1_SCK_B */
+                                <STM32_PINMUX('F', 9, AF6)>,           /* 
SAI1_FS_B */
+                                <STM32_PINMUX('F', 7, AF6)>;           /* 
SAI1_MCLK_B */
+                       slew-rate = <0>;
+                       drive-push-pull;
+                       bias-disable;
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('F', 6, AF6)>;           /* 
SAI1_SD_B */
+                       bias-disable;
+               };
+       };
+
+       sai1_sleep_pins: sai1-sleep-0 {
+               pins {
+                       pinmux = <STM32_PINMUX('B', 2, ANALOG)>,        /* 
SAI1_SD_A */
+                                <STM32_PINMUX('F', 8, ANALOG)>,        /* 
SAI1_SCK_B */
+                                <STM32_PINMUX('F', 9, ANALOG)>,        /* 
SAI1_FS_B */
+                                <STM32_PINMUX('F', 7, ANALOG)>,        /* 
SAI1_MCLK_B */
+                                <STM32_PINMUX('F', 6, ANALOG)>;        /* 
SAI1_SD_B */
+               };
+       };
+
+       spi5_pins: spi5-0 {
+               pins {
+                       pinmux = <STM32_PINMUX('H', 6, AF5)>,           /* 
SPI5_SCK */
+                                <STM32_PINMUX('F', 11, AF5)>;          /* 
SPI5_MOSI */
+                       bias-disable;
+                       drive-push-pull;
+                       slew-rate = <1>;
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('H', 7, AF5)>;           /* 
SPI5_MISO */
+                       bias-disable;
+               };
+       };
+
+       stusb1600_pins: stusb1600-0 {
+               pins {
+                       pinmux = <STM32_PINMUX('A', 10, ANALOG)>;       /* 
STUSB1600 IRQ */
+                       bias-pull-up;
+               };
+       };
+
+       tim2_pwm_pins: tim2-pwm-0 {
+               pins {
+                       pinmux = <STM32_PINMUX('G', 8, AF1)>;           /* 
TIM2_CH1 */
+                       bias-disable;
+                       drive-push-pull;
+                       slew-rate = <0>;
+               };
+       };
+
+       tim2_pwm_sleep_pins: tim2-pwm-sleep-0 {
+               pins {
+                       pinmux = <STM32_PINMUX('G', 8, ANALOG)>;        /* 
TIM2_CH1 */
+               };
+       };
+
+       uart4_pins: uart4-0 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('G', 11, AF6)>;          /* 
UART4_TX */
+                       bias-disable;
+                       drive-push-pull;
+                       slew-rate = <0>;
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('A', 11, AF6)>;          /* 
UART4_RX */
+                       bias-disable;
+               };
+       };
+
+       uart4_idle_pins: uart4-idle-0 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('G', 11, ANALOG)>;       /* 
UART4_TX */
+               };
+               pins2 {
+                       pinmux = <STM32_PINMUX('A', 11, AF6)>;          /* 
UART4_RX */
+                       bias-disable;
+               };
+       };
+
+       uart4_sleep_pins: uart4-sleep-0 {
+               pins1 {
+                       pinmux = <STM32_PINMUX('G', 11, ANALOG)>,       /* 
UART4_TX */
+                                <STM32_PINMUX('A', 11, ANALOG)>;       /* 
UART4_RX */
+               };
+       };
+};
+
+&pinctrl_z {
+       i2c2_pins_z: i2c2-0 {
+               pins {
+                       pinmux = <STM32_PINMUX('Z', 7, AF3)>;           /* 
I2C2_SDA */
+                       bias-disable;
+                       drive-open-drain;
+                       slew-rate = <0>;
+               };
+       };
+
+       i2c2_sleep_pins_z: i2c2-sleep-0 {
+               pins {
+                       pinmux = <STM32_PINMUX('Z', 7, ANALOG)>;        /* 
I2C2_SDA */
+               };
+       };
+};
diff --git a/arch/arm/mach-stm32mp/Kconfig b/arch/arm/mach-stm32mp/Kconfig
index bc0a48d64c..358aad940c 100644
--- a/arch/arm/mach-stm32mp/Kconfig
+++ b/arch/arm/mach-stm32mp/Kconfig
@@ -29,6 +29,13 @@ config MACH_LXA_MC1
        select ARCH_STM32MP157
        bool "Linux Automation MC-1 board"
 
+config MACH_MYIRTECH_STM32MP1
+       bool "MYIR Tech Limited SOMs"
+       select ARCH_STM32MP157
+       select MACHINE_ID
+       help
+          Say Y here if you are using a STM32MP15x based MYIR SOM
+
 config MACH_SEEED_ODYSSEY
        select ARCH_STM32MP157
        bool "Seeed Studio Odyssey"
diff --git a/images/Makefile.stm32mp b/images/Makefile.stm32mp
index 59d6572207..344dd41eb7 100644
--- a/images/Makefile.stm32mp
+++ b/images/Makefile.stm32mp
@@ -36,6 +36,8 @@ $(call build_stm32mp_image, CONFIG_MACH_STM32MP15X_EV1, 
start_stm32mp15x_ev1, st
 
 $(call build_stm32mp_image, CONFIG_MACH_LXA_MC1, start_stm32mp157c_lxa_mc1, 
stm32mp157c-lxa-mc1)
 
+$(call build_stm32mp_image, CONFIG_MACH_MYIRTECH_STM32MP1, 
start_stm32mp15x_myir, stm32mp15x-myir)
+
 $(call build_stm32mp_image, CONFIG_MACH_PROTONIC_STM32MP1, start_prtt1a, 
prtt1a)
 $(call build_stm32mp_image, CONFIG_MACH_PROTONIC_STM32MP1, start_prtt1s, 
prtt1s)
 $(call build_stm32mp_image, CONFIG_MACH_PROTONIC_STM32MP1, start_prtt1c, 
prtt1c)
-- 
2.39.1


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