[PATCH 1/4] airoha: Add initial support for Airoha AN7581 SoC

[Christian Marangi <ansuelsmth@gmail.com>]

Add initial support for Airoha AN7581 SoC. This adds the initial Kconfig
and Makefile entry for the SoC, an initial RFB DTS and initial config
for it. Also add the initial code for cpu and RAM initialization.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 arch/arm/Kconfig                     |   9 ++
 arch/arm/Makefile                    |   1 +
 arch/arm/dts/an7581-evb.dts          | 144 +++++++++++++++++++++++++++
 arch/arm/mach-airoha/Kconfig         |  44 ++++++++
 arch/arm/mach-airoha/Makefile        |   5 +
 arch/arm/mach-airoha/an7581/Makefile |   3 +
 arch/arm/mach-airoha/an7581/init.c   |  47 +++++++++
 arch/arm/mach-airoha/cpu.c           |  20 ++++
 board/airoha/an7581/MAINTAINERS      |   6 ++
 board/airoha/an7581/Makefile         |   3 +
 board/airoha/an7581/an7581_rfb.c     |  16 +++
 configs/an7581_evb_defconfig         | 137 +++++++++++++++++++++++++
 include/configs/an7581.h             |  19 ++++
 13 files changed, 454 insertions(+)
 create mode 100644 arch/arm/dts/an7581-evb.dts
 create mode 100644 arch/arm/mach-airoha/Kconfig
 create mode 100644 arch/arm/mach-airoha/Makefile
 create mode 100644 arch/arm/mach-airoha/an7581/Makefile
 create mode 100644 arch/arm/mach-airoha/an7581/init.c
 create mode 100644 arch/arm/mach-airoha/cpu.c
 create mode 100644 board/airoha/an7581/MAINTAINERS
 create mode 100644 board/airoha/an7581/Makefile
 create mode 100644 board/airoha/an7581/an7581_rfb.c
 create mode 100644 configs/an7581_evb_defconfig
 create mode 100644 include/configs/an7581.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index da6f1174934..4729ac39257 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -600,6 +600,13 @@ choice
 	prompt "Target select"
 	default TARGET_HIKEY
 
+config ARCH_AIROHA
+	bool "Airoha SoCs"
+	select DM
+	select OF_CONTROL
+	help
+	  Support for the Airoha soc.
+
 config ARCH_AT91
 	bool "Atmel AT91"
 	select GPIO_EXTRA_HEADER
@@ -2251,6 +2258,8 @@ config SYS_KWD_CONFIG
 	  Path within the source directory to the kwbimage.cfg file to use
 	  when packaging the U-Boot image for use.
 
+source "arch/arm/mach-airoha/Kconfig"
+
 source "arch/arm/mach-apple/Kconfig"
 
 source "arch/arm/mach-aspeed/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 7334e79965f..5ecadb2ef1b 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -51,6 +51,7 @@ PLATFORM_CPPFLAGS += $(arch-y) $(tune-y)
 
 # Machine directory name.  This list is sorted alphanumerically
 # by CONFIG_* macro name.
+machine-$(CONFIG_ARCH_AIROHA)		+= airoha
 machine-$(CONFIG_ARCH_APPLE)		+= apple
 machine-$(CONFIG_ARCH_ASPEED)		+= aspeed
 machine-$(CONFIG_ARCH_AT91)		+= at91
diff --git a/arch/arm/dts/an7581-evb.dts b/arch/arm/dts/an7581-evb.dts
new file mode 100644
index 00000000000..be600ad0664
--- /dev/null
+++ b/arch/arm/dts/an7581-evb.dts
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+/dts-v1/;
+
+/ {
+	compatible = "airoha,an7581";
+	interrupt-parent = <&gic>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	chosen {
+		stdout-path = &uart1;
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0x0 0x20000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		atf-reserved-memory@80000000 {
+			no-map;
+			reg = <0x0 0x80000000 0x0 0x40000>;
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&cpu0>;
+				};
+				core1 {
+					cpu = <&cpu1>;
+				};
+				core2 {
+					cpu = <&cpu2>;
+				};
+				core3 {
+					cpu = <&cpu3>;
+				};
+			};
+		};
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x0>;
+			enable-method = "psci";
+			clock-frequency = <80000000>;
+			next-level-cache = <&L2_0>;
+		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x1>;
+			enable-method = "psci";
+			clock-frequency = <80000000>;
+			next-level-cache = <&L2_0>;
+		};
+
+		cpu2: cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x2>;
+			enable-method = "psci";
+			clock-frequency = <80000000>;
+			next-level-cache = <&L2_0>;
+		};
+
+		cpu3: cpu@3 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x3>;
+			enable-method = "psci";
+			clock-frequency = <80000000>;
+			next-level-cache = <&L2_0>;
+		};
+
+		L2_0: l2-cache0 {
+			compatible = "cache";
+		};
+	};
+
+	gic: interrupt-controller@09000000 {
+		compatible = "arm,gic-v3";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0x0 0x09000000 0x0 0x20000>,
+			  <0x0 0x09080000 0x0 0x80000>;
+		interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_LOW>;
+
+		its: gic-its@09020000 {
+			compatible = "arm,gic-v3-its";
+			msi-controller;
+			#msi-cell = <1>;
+			reg = <0x0 0x090200000 0x0 0x20000>;
+		};
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+		clock-frequency = <25000000>;
+	};
+
+	pmu {
+		compatible = "arm,cortex-a15-pmu";
+		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
+	uart1: serial@1fbf0000 {
+		compatible = "ns16550";
+		reg = <0x0 0x1fbf0000 0x0 0x30>;
+		reg-io-width = <4>;
+		reg-shift = <2>;
+		interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+		clock-frequency = <1843200>;
+		bootph-all;
+	};
+};
diff --git a/arch/arm/mach-airoha/Kconfig b/arch/arm/mach-airoha/Kconfig
new file mode 100644
index 00000000000..0470a01034f
--- /dev/null
+++ b/arch/arm/mach-airoha/Kconfig
@@ -0,0 +1,44 @@
+if ARCH_AIROHA
+
+config SYS_SOC
+	default "airoha"
+
+config SYS_VENDOR
+	default "airoha"
+
+choice
+	prompt "Airoha board select"
+
+config TARGET_AN7581
+	bool "Airoha AN7581 SoC"
+	select ARM64
+	help
+	  The Airoha EN7581 is a ARM-based SoC with a quad-core Cortex-A7
+	  including NEON and GPU, Mali-450 graphics, several DDR3 options,
+	  crypto engine, built-in Wi-Fi / Bluetooth combo chip, JPEG decoder,
+	  video interfaces supporting HDMI and MIPI, and video codec support.
+	  Peripherals include Gigabit Ethernet, switch, USB3.0 and OTG, PCIe,
+	  I2S, PCM, S/PDIF, UART, SPI, I2C, IR TX/RX, and PWM.
+
+endchoice
+
+config SYS_BOARD
+	string "Board name"
+	default "an7581" if TARGET_AN7581
+	default ""
+	help
+	  This option contains information about board name.
+	  Based on this option board/<CONFIG_SYS_VENDOR>/<CONFIG_SYS_BOARD> will
+	  be used.
+
+config SYS_CONFIG_NAME
+	string "Board configuration name"
+	default "an7581" if TARGET_AN7581
+	default ""
+	help
+	  This option contains information about board configuration name.
+	  Based on this option include/configs/<CONFIG_SYS_CONFIG_NAME>.h header
+	  will be used for board configuration.
+
+endif
+
diff --git a/arch/arm/mach-airoha/Makefile b/arch/arm/mach-airoha/Makefile
new file mode 100644
index 00000000000..215a300373b
--- /dev/null
+++ b/arch/arm/mach-airoha/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier:	GPL-2.0
+
+obj-y	+= cpu.o
+
+obj-$(CONFIG_TARGET_AN7581) += an7581/
diff --git a/arch/arm/mach-airoha/an7581/Makefile b/arch/arm/mach-airoha/an7581/Makefile
new file mode 100644
index 00000000000..886ab7e4eb9
--- /dev/null
+++ b/arch/arm/mach-airoha/an7581/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier:	GPL-2.0
+
+obj-y += init.o
diff --git a/arch/arm/mach-airoha/an7581/init.c b/arch/arm/mach-airoha/an7581/init.c
new file mode 100644
index 00000000000..cefe9c6db9e
--- /dev/null
+++ b/arch/arm/mach-airoha/an7581/init.c
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <fdtdec.h>
+#include <init.h>
+#include <asm/armv8/mmu.h>
+#include <asm/system.h>
+
+int print_cpuinfo(void)
+{
+	printf("CPU:   Airoha AN7581\n");
+	return 0;
+}
+
+int dram_init(void)
+{
+	return fdtdec_setup_mem_size_base();
+}
+
+int dram_init_banksize(void)
+{
+	return fdtdec_setup_memory_banksize();
+}
+
+void reset_cpu(ulong addr)
+{
+	psci_system_reset();
+}
+
+static struct mm_region an7581_mem_map[] = {
+	{
+		/* DDR */
+		.virt = 0x80000000UL,
+		.phys = 0x80000000UL,
+		.size = 0x80000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_OUTER_SHARE,
+	}, {
+		.virt = 0x00000000UL,
+		.phys = 0x00000000UL,
+		.size = 0x20000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		0,
+	}
+};
+struct mm_region *mem_map = an7581_mem_map;
diff --git a/arch/arm/mach-airoha/cpu.c b/arch/arm/mach-airoha/cpu.c
new file mode 100644
index 00000000000..a578e964664
--- /dev/null
+++ b/arch/arm/mach-airoha/cpu.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <cpu_func.h>
+#include <dm.h>
+#include <init.h>
+#include <wdt.h>
+#include <dm/uclass-internal.h>
+
+int arch_cpu_init(void)
+{
+	icache_enable();
+
+	return 0;
+}
+
+void enable_caches(void)
+{
+	/* Enable D-cache. I-cache is already enabled in start.S */
+	dcache_enable();
+}
diff --git a/board/airoha/an7581/MAINTAINERS b/board/airoha/an7581/MAINTAINERS
new file mode 100644
index 00000000000..480b89a73aa
--- /dev/null
+++ b/board/airoha/an7581/MAINTAINERS
@@ -0,0 +1,6 @@
+AN7581
+M:	Christian Marangi <ansuelsmth@gmail.com>
+S:	Maintained
+F:	board/airoha/an7581
+F:	include/configs/an7581.h
+F:	configs/an7581_rfb_defconfig
diff --git a/board/airoha/an7581/Makefile b/board/airoha/an7581/Makefile
new file mode 100644
index 00000000000..70f8db7bce9
--- /dev/null
+++ b/board/airoha/an7581/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier:	GPL-2.0
+
+obj-y	+= an7581_rfb.o
diff --git a/board/airoha/an7581/an7581_rfb.c b/board/airoha/an7581/an7581_rfb.c
new file mode 100644
index 00000000000..d38f7342949
--- /dev/null
+++ b/board/airoha/an7581/an7581_rfb.c
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Author: Christian Marangi <ansuelsmth@gmail.com>
+ */
+
+#include <asm/global_data.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+	return 0;
+}
diff --git a/configs/an7581_evb_defconfig b/configs/an7581_evb_defconfig
new file mode 100644
index 00000000000..b37511c026e
--- /dev/null
+++ b/configs/an7581_evb_defconfig
@@ -0,0 +1,137 @@
+CONFIG_ARM=y
+# CONFIG_SYS_HAS_NONCACHED_MEMORY is not set
+CONFIG_SYS_ARCH_TIMER=y
+CONFIG_SYS_THUMB_BUILD=y
+CONFIG_ARCH_AIROHA=y
+CONFIG_UBOOT_ARHT=y
+CONFIG_TEXT_BASE=0x81E00000
+CONFIG_SYS_MALLOC_F_LEN=0x4000
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_DEFAULT_DEVICE_TREE="an7581-evb"
+CONFIG_SPL_TEXT_BASE=0x201000
+CONFIG_SYS_PROMPT="U-Boot> "
+CONFIG_TARGET_AN7581=y
+CONFIG_SPL_SERIAL=y
+CONFIG_SPL_DRIVERS_MISC=y
+CONFIG_SPL_STACK_R_ADDR=0x40800000
+CONFIG_SYS_LOAD_ADDR=0x81800000
+CONFIG_SPL_PAYLOAD="u-boot-lzma.img"
+CONFIG_BUILD_TARGET="u-boot.bin"
+# CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
+# CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0xdeadbeef
+CONFIG_SPL_IMAGE="spl/u-boot-spl-mtk.bin"
+CONFIG_FIT=y
+CONFIG_SHA1=y
+CONFIG_SHA256=y
+CONFIG_SHA512=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_BOOTDELAY=3
+CONFIG_DEFAULT_FDT_FILE="an7581-evb"
+CONFIG_SYS_CONSOLE_IS_IN_ENV=y
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_SPL_MAX_SIZE=0x10000
+CONFIG_SPL_FOOTPRINT_LIMIT=y
+CONFIG_SPL_MAX_FOOTPRINT=0x10000
+CONFIG_SPL_SYS_MALLOC_SIMPLE=y
+# CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
+CONFIG_SPL_STACK=0x106000
+CONFIG_SPL_STACK_R=y
+CONFIG_SPL_NOR_SUPPORT=y
+CONFIG_SPL_WATCHDOG=y
+CONFIG_HUSH_PARSER=y
+CONFIG_SYS_MAXARGS=8
+CONFIG_SYS_PBSIZE=1049
+CONFIG_SYS_BOOTM_LEN=0x4000000
+CONFIG_CMD_BOOTMENU=y
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_XIMG is not set
+CONFIG_CMD_BIND=y
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_SF_TEST=y
+CONFIG_CMD_USB=y
+# CONFIG_CMD_SETEXPR is not set
+# CONFIG_CMD_NFS is not set
+CONFIG_CMD_PING=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_CMD_LOG=y
+CONFIG_CMD_SAVEENV=y
+CONFIG_OF_SPL_REMOVE_PROPS="pinctrl-0 pinctrl-names clock-names interrupt-parent assigned-clocks assigned-clock-parents"
+CONFIG_ENV_OVERWRITE=y
+CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_SPL_DM_SEQ_ALIAS=y
+CONFIG_REGMAP=y
+CONFIG_SPL_REGMAP=y
+CONFIG_SYSCON=y
+CONFIG_SPL_SYSCON=y
+CONFIG_CLK=y
+CONFIG_SPL_CLK=y
+CONFIG_MTD=y
+CONFIG_DM_MTD=y
+CONFIG_MTD_SPI_NAND=y
+CONFIG_SPI_FLASH_MTD=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH_EON=y
+CONFIG_SPI_FLASH_GIGADEVICE=y
+CONFIG_SPI_FLASH_ISSI=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_MMC_HS200_SUPPORT=y
+CONFIG_MMC_AIROHA=y
+CONFIG_MMC_WRITE=y
+CONFIG_BLOCK_CACHE=y
+# CONFIG_MEDIATEK_ETH is not set
+CONFIG_PHY=y
+#CONFIG_PHY_MTK_TPHY=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_PINCTRL_MT7629=y
+CONFIG_POWER_DOMAIN=y
+#CONFIG_MTK_POWER_DOMAIN=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_RAM=y
+CONFIG_SPL_RAM=y
+CONFIG_DM_SERIAL=y
+CONFIG_SYS_NS16550=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+# CONFIG_MTK_SNOR=y
+#CONFIG_SYSRESET=y
+#CONFIG_SPL_SYSRESET=y
+#CONFIG_SYSRESET_WATCHDOG=y
+#CONFIG_USB=y
+#CONFIG_USB_XHCI_HCD=y
+#CONFIG_USB_XHCI_MTK=y
+#CONFIG_USB_STORAGE=y
+#CONFIG_USB_KEYBOARD=y
+#CONFIG_WDT_MTK=y
+CONFIG_LZMA=y
+CONFIG_SPL_LZMA=y
+# CONFIG_EFI_LOADER is not set
+CONFIG_CMD_SPI=y
+CONFIG_ENV_IS_IN_SNAND_FLASH=y
+CONFIG_ENV_IS_IN_MMC=y
+CONFIG_ENV_OFFSET=0x7c000
+CONFIG_SYS_SNAND_ENV_DEV="bootloader"
+CONFIG_ENV_SIZE=0x4000
+CONFIG_ENV_SECT_SIZE=0x20000
+CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_CMD_MTD=y
+CONFIG_CMD_MTDPARTS=y
+CONFIG_DMA=y
+CONFIG_AIROHA_ETH=y
+CONFIG_ARHT_SPI=y
+CONFIG_CMD_BOOTZ=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_EXT4=y
+CONFIG_OF_LIBFDT=y
+CONFIG_DM_LED=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
+CONFIG_ARHT_GPIO=y
+CONFIG_DM_GPIO=y
diff --git a/include/configs/an7581.h b/include/configs/an7581.h
new file mode 100644
index 00000000000..901d99b3456
--- /dev/null
+++ b/include/configs/an7581.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Configuration for Airoha AN7581
+ */
+
+#ifndef __AN7581_H
+#define __AN7581_H
+
+#include <linux/sizes.h>
+
+#define CONFIG_SYS_UBOOT_BASE		CONFIG_TEXT_BASE
+
+#define CFG_SYS_INIT_RAM_ADDR           CONFIG_TEXT_BASE
+#define CFG_SYS_INIT_RAM_SIZE           SZ_2M
+
+/* DRAM */
+#define CONFIG_SYS_SDRAM_BASE		0x80000000
+
+#endif
-- 
2.48.1