F: test/log/
F: test/py/tests/test_log.py
+M680X0 ARCHITECTURE
+M: Kuan-Wei Chiu <visitorckw@gmail.com>
+S: Maintained
+F: arch/m68k/cpu/m680x0/
+F: arch/m68k/include/asm/bootinfo.h
+
MALI DISPLAY PROCESSORS
M: Liviu Dudau <liviu.dudau@foss.arm.com>
S: Supported
select OF_CONTROL
select DM
select DM_SERIAL
+ select ARCH_COLDFIRE
bool
config MCF52x2
select OF_CONTROL
select DM
select DM_SERIAL
+ select ARCH_COLDFIRE
bool
config MCF523x
select OF_CONTROL
select DM
select DM_SERIAL
+ select ARCH_COLDFIRE
bool
config MCF530x
select OF_CONTROL
select DM
select DM_SERIAL
+ select ARCH_COLDFIRE
bool
config MCF5301x
select OF_CONTROL
select DM
select DM_SERIAL
+ select ARCH_COLDFIRE
bool
config MCF532x
select OF_CONTROL
select DM
select DM_SERIAL
+ select ARCH_COLDFIRE
bool
config MCF537x
select OF_CONTROL
select DM
select DM_SERIAL
+ select ARCH_COLDFIRE
bool
config MCF5441x
select OF_CONTROL
select DM
select DM_SERIAL
+ select ARCH_COLDFIRE
bool
+config M680x0
+ bool
+ help
+ This enables support for the classic Motorola 68000 family of
+ processors.
+
# processor type
config M5208
bool
bool
select MCF5441x
+config M68040
+ bool
+ select M680x0
+
# peripherals
config CF_DSPI
bool
endchoice
+config SYS_CPU
+ string
+ default "mcf52x2" if MCF52x2
+ default "mcf523x" if MCF523x
+ default "mcf530x" if MCF530x
+ default "mcf532x" if MCF532x
+ default "mcf5445x" if MCF5445x
+ default "m680x0" if M680x0
+
+config ARCH_COLDFIRE
+ bool
+
source "board/BuS/eb_cpu5282/Kconfig"
source "board/cobra5272/Kconfig"
source "board/freescale/m5208evbe/Kconfig"
cpuflags-$(CONFIG_MCF5301x) := -mcpu=53015 -fPIC
cpuflags-$(CONFIG_MCF532x) := -mcpu=5329 -fPIC
cpuflags-$(CONFIG_MCF5441x) := -mcpu=54418 -fPIC
+cpuflags-$(CONFIG_M68040) := -mcpu=68040 -fno-pic
PLATFORM_CPPFLAGS += $(cpuflags-y)
# (C) Copyright 2000-2002
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-PLATFORM_CPPFLAGS += -D__M68K__ -fPIC
+PLATFORM_CPPFLAGS += -D__M68K__
+ifneq ($(CONFIG_M680x0),y)
+PLATFORM_CPPFLAGS += -fPIC
+endif
KBUILD_LDFLAGS += -n -pie
PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
-PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
+PLATFORM_RELFLAGS += -ffixed-d7
+ifneq ($(CONFIG_M680x0),y)
+PLATFORM_RELFLAGS += -msep-data
+endif
LDFLAGS_FINAL += --gc-sections -pie
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2025, Kuan-Wei Chiu <visitorckw@gmail.com>
+
+extra-y += start.o
+obj-y += cpu.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * CPU specific code for m68040
+ *
+ * Copyright (C) 2025, Kuan-Wei Chiu <visitorckw@gmail.com>
+ */
+
+#include <config.h>
+#include <cpu_func.h>
+#include <init.h>
+#include <stdio.h>
+#include <asm/global_data.h>
+#include <linux/types.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void m68k_virt_init_reserve(ulong base)
+{
+ struct global_data *gd_ptr = (struct global_data *)base;
+ char *p = (char *)gd_ptr;
+ unsigned int i;
+
+ /* FIXME: usage of memset() here caused a hang on QEMU m68k virt. */
+ for (i = 0; i < sizeof(*gd_ptr); i++)
+ p[i] = 0;
+
+ gd = gd_ptr;
+
+ gd->malloc_base = base + sizeof(*gd_ptr);
+}
+
+int print_cpuinfo(void)
+{
+ puts("CPU: M68040 (QEMU Virt)\n");
+
+ return 0;
+}
+
+int get_clocks(void)
+{
+ return 0;
+}
+
+int cpu_init_r(void)
+{
+ return 0;
+}
+
+/*
+ * Relocation Stub
+ * We skip actual relocation for this QEMU bring-up and jump directly
+ * to board_init_r.
+ */
+
+void relocate_code(ulong sp, struct global_data *new_gd, ulong relocaddr)
+{
+ board_init_r(new_gd, relocaddr);
+}
+
+/* Stubs for Standard Facilities (Cache, Interrupts) */
+
+int disable_interrupts(void) { return 0; }
+void enable_interrupts(void) { return; }
+int interrupt_init(void) { return 0; }
+
+void icache_enable(void) {}
+void icache_disable(void) {}
+int icache_status(void) { return 0; }
+void dcache_enable(void) {}
+void dcache_disable(void) {}
+int dcache_status(void) { return 0; }
+void flush_cache(unsigned long start, unsigned long size) {}
+void flush_dcache_range(unsigned long start, unsigned long stop) {}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Startup code for m68040
+ *
+ * Copyright (C) 2025, Kuan-Wei Chiu <visitorckw@gmail.com>
+ */
+
+#include <asm-offsets.h>
+#include <config.h>
+#include <linux/linkage.h>
+
+.section .text
+
+/*
+ * Vector Table
+ * m68k uses the first 1KB for the exception vector table.
+ */
+.balign 4
+.global _vectors
+_vectors:
+ .long CFG_SYS_INIT_SP_ADDR /* 0x00: Initial SP */
+ .long _start /* 0x04: Initial PC (Reset) */
+ .long _fault /* 0x08: Bus Error */
+ .long _fault /* 0x0C: Address Error */
+ .long _fault /* 0x10: Illegal Instruction */
+ .long _fault /* 0x14: Zero Divide */
+ .long _fault /* 0x18: CHK */
+ .long _fault /* 0x1C: TRAPV */
+ .long _fault /* 0x20: Privilege */
+ .long _fault /* 0x24: Trace */
+ .long _fault /* 0x28: Line 1010 */
+ .long _fault /* 0x2C: Line 1111 */
+ .fill 0x400 - (.-_vectors), 1, 0
+
+/*
+ * Entry Point
+ */
+ENTRY(_start)
+ /* Disable Interrupts */
+ move.w #0x2700, %sr
+
+ /* Setup initial stack pointer */
+ move.l #CFG_SYS_INIT_SP_ADDR, %sp
+
+ /*
+ * Allocate Global Data (GD)
+ * board_init_f_alloc_reserve(top) returns the new top of stack in %d0
+ */
+ move.l %sp, -(%sp)
+ bsr.l board_init_f_alloc_reserve
+ addq.l #4, %sp
+
+ /* Update Stack Pointer and set GD register */
+ move.l %d0, %sp
+ move.l %d0, %d7 /* %d7 is the gd register */
+
+ /* Initialize Reserved Memory. */
+ move.l %d0, -(%sp)
+ bsr.l m68k_virt_init_reserve
+ addq.l #4, %sp
+
+ /* Enter board_init_f(0) */
+ clr.l -(%sp)
+ bsr.l board_init_f
+ addq.l #4, %sp
+
+ /* Should not return */
+hang:
+ bra.s hang
+ENDPROC(_start)
+
+_fault:
+ bra.s _fault
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Linker Script for m68040
+ *
+ * Copyright (C) 2025, Kuan-Wei Chiu <visitorckw@gmail.com>
+ */
+
+OUTPUT_ARCH(m68k)
+ENTRY(_start)
+
+SECTIONS
+{
+ . = 0x00000000;
+ __text_start = .;
+
+ .text :
+ {
+ arch/m68k/cpu/m680x0/start.o (.text*)
+ *(.text*)
+ }
+
+ . = ALIGN(16);
+ .rodata : { *(.rodata*) }
+
+ . = ALIGN(16);
+ .data : { *(.data*) }
+
+ . = ALIGN(4);
+ .u_boot_list : {
+ KEEP(*(SORT(*u_boot_list*)));
+ }
+
+ . = ALIGN(4);
+ __image_copy_end = .;
+ __init_end = .;
+
+ . = ALIGN(16);
+ __bss_start = .;
+ .bss :
+ {
+ *(.bss*)
+ . = ALIGN(16);
+ }
+ __bss_end = .;
+
+ _end = .;
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2025, Kuan-Wei Chiu <visitorckw@gmail.com>
+ *
+ * Definitions for the m68k bootinfo interface.
+ */
+
+#ifndef _ASM_M68K_BOOTINFO_H
+#define _ASM_M68K_BOOTINFO_H
+
+#ifndef __ASSEMBLY__
+
+struct bi_record {
+ unsigned short tag; /* tag ID */
+ unsigned short size; /* size of record (in bytes) */
+ unsigned long data[0]; /* data */
+};
+
+#endif /* __ASSEMBLY__ */
+
+/* Bootinfo Tag IDs */
+#define BI_LAST 0x0000
+#define BI_MACHTYPE 0x0001
+#define BI_CPUTYPE 0x0002
+#define BI_FPUTYPE 0x0003
+#define BI_MMUTYPE 0x0004
+#define BI_MEMCHUNK 0x0005
+#define BI_RAMDISK 0x0006
+#define BI_COMMAND_LINE 0x0007
+
+/* QEMU virt specific tags */
+#define BI_VIRT_QEMU_VERSION 0x8000
+#define BI_VIRT_GF_PIC_BASE 0x8001
+#define BI_VIRT_GF_RTC_BASE 0x8002
+#define BI_VIRT_GF_TTY_BASE 0x8003
+#define BI_VIRT_VIRTIO_BASE 0x8004
+#define BI_VIRT_CTRL_BASE 0x8005
+
+#endif /* _ASM_M68K_BOOTINFO_H */
## if the user asked for it
lib-$(CONFIG_USE_PRIVATE_LIBGCC) += lshrdi3.o muldi3.o ashldi3.o ashrdi3.o
-obj-y += bdinfo.o
obj-$(CONFIG_CMD_BOOTM) += bootm.o
-obj-y += cache.o
-obj-y += interrupts.o
-obj-y += time.o
-obj-y += traps.o
-obj-y += fec.o
+obj-$(CONFIG_ARCH_COLDFIRE) += cache.o interrupts.o time.o traps.o bdinfo.o fec.o
projects / thirdparty / u-boot.git / commitdiff
