initial commitmain

Signed-off-by: Ian M. <ian@aptel.org>

5 files changed, 96 insertions, 0 deletions

diff --git a/atos/Makefile b/atos/Makefile
new file mode 100644
index 0000000..eea25c3
--- /dev/null
+++ b/atos/Makefile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2026, Apollo Telephone Laboratories.
+# Provided under the BSD-3 clause.
+#
+
+.PHONY: all
+all: boot
+
+.PHONY: boot
+boot: machine
+	cd boot/$(CONFIG_ARCH)/$(CONFIG_CHIP); $(MAKE)
+
+.PHONY: machine
+machine:
+	cd arch/$(CONFIG_ARCH)/$(CONFIG_CHIP); $(MAKE)
diff --git a/atos/arch/rv64/jh7110/Makefile b/atos/arch/rv64/jh7110/Makefile
new file mode 100644
index 0000000..2e9f989
--- /dev/null
+++ b/atos/arch/rv64/jh7110/Makefile
@@ -0,0 +1,28 @@
+#
+# Copyright (c) 2026, Apollo Telephone Laboratories.
+# Provided under the BSD-3 clause.
+#
+
+include ../../../../mk/atos.mk
+
+ASMFILES = $(shell find . -name "*.S")
+ASMOFILES = $(ASMFILES:.S=.S.o)
+MISC_OFILES = $(shell find $(GLOBAL_ROOT)/atos -name "*.o")
+CFLAGS = $(INTERNAL_CFLAGS)
+
+KERNEL_ELF_OUT = $(GLOBAL_ROOT)/out/atos.sys
+KERNEL_BIN_OUT = $(GLOBAL_ROOT)/out/atos.bin
+
+.PHONY: all
+all: $(KERNEL_ELF_OUT)
+	$(PROMPT) "OBJCOPY" $(KERNEL_BIN_OUT)
+	$(OBJCOPY) -O binary $(KERNEL_ELF_OUT) $(KERNEL_BIN_OUT)
+
+.PHONY: $(KERNEL_ELF_OUT)
+$(KERNEL_ELF_OUT): $(ASMOFILES)
+	$(PROMPT) "LD" $(KERNEL_ELF_OUT)
+	$(LD) -Tdev/link.ld $(MISC_OFILES) -o $(KERNEL_ELF_OUT)
+
+%.S.o: %.S
+	$(PROMPT) "CC" $<
+	$(CC) -c $< $(CFLAGS) -o $@
diff --git a/atos/arch/rv64/jh7110/dev/link.ld b/atos/arch/rv64/jh7110/dev/link.ld
new file mode 100644
index 0000000..c425651
--- /dev/null
+++ b/atos/arch/rv64/jh7110/dev/link.ld
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2026, Apollo Telephone Laboratories.
+ * Provided under the BSD-3 clause.
+ */
+
+ENTRY(MdHartEntry)
+
+SECTIONS {
+    . = 0x42200000;
+
+    .text : {
+        *(.text .text.*)
+    }
+
+    . += CONSTANT(MAXPAGESIZE);
+
+    .rodata : {
+        *(.rodata .rodata.*)
+    }
+
+    . += CONSTANT(MAXPAGESIZE);
+
+    .data : {
+        *(.data .data.*)
+    }
+
+    . += CONSTANT(MAXPAGESIZE);
+
+    .bss : {
+        *(.bss .bss.*)
+    }
+}
diff --git a/atos/arch/rv64/jh7110/ke/head.S b/atos/arch/rv64/jh7110/ke/head.S
new file mode 100644
index 0000000..bc4a5ae
--- /dev/null
+++ b/atos/arch/rv64/jh7110/ke/head.S
@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) 2026, Apollo Telephone Laboratories.
+ * Provided under the BSD-3 clause.
+ */
+
+    .text
+    .globl MdHartEntry
+MdHartEntry:
+1:  wfi
+    j 1b
diff --git a/atos/boot/rv64/jh7110/Makefile b/atos/boot/rv64/jh7110/Makefile
new file mode 100644
index 0000000..122fdba
--- /dev/null
+++ b/atos/boot/rv64/jh7110/Makefile
@@ -0,0 +1,11 @@
+#
+# Copyright (c) 2026, Apollo Telephone Laboratories.
+# Provided under the BSD-3 clause.
+#
+
+IMG_PATH = $(GLOBAL_ROOT)/out/cirrus.img
+
+.PHONY: all
+all:
+	mkfs.fat -C $(IMG_PATH) 4096
+	mcopy -i $(IMG_PATH) $(GLOBAL_ROOT)/out/atos.bin ::