mirror of https://github.com/hak5/openwrt.git
209 lines
5.3 KiB
Diff
209 lines
5.3 KiB
Diff
--- /dev/null
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+++ b/arch/mips/include/asm/mips_machine.h
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@@ -0,0 +1,54 @@
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+/*
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+ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License version 2 as published
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+ * by the Free Software Foundation.
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+ *
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+ */
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+
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+#ifndef __ASM_MIPS_MACHINE_H
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+#define __ASM_MIPS_MACHINE_H
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+
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+#include <linux/init.h>
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+#include <linux/list.h>
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+
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+#include <asm/bootinfo.h>
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+
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+struct mips_machine {
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+ unsigned long mach_type;
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+ const char *mach_id;
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+ const char *mach_name;
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+ void (*mach_setup)(void);
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+};
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+
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+#define MIPS_MACHINE(_type, _id, _name, _setup) \
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+static const char machine_name_##_type[] __initconst \
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+ __aligned(1) = _name; \
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+static const char machine_id_##_type[] __initconst \
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+ __aligned(1) = _id; \
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+static struct mips_machine machine_##_type \
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+ __used __section(.mips.machines.init) = \
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+{ \
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+ .mach_type = _type, \
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+ .mach_id = machine_id_##_type, \
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+ .mach_name = machine_name_##_type, \
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+ .mach_setup = _setup, \
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+};
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+
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+extern long __mips_machines_start;
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+extern long __mips_machines_end;
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+
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+#ifdef CONFIG_MIPS_MACHINE
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+int mips_machtype_setup(char *id) __init;
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+void mips_machine_setup(void) __init;
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+void mips_set_machine_name(const char *name) __init;
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+char *mips_get_machine_name(void);
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+#else
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+static inline int mips_machtype_setup(char *id) { return 1; }
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+static inline void mips_machine_setup(void) { }
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+static inline void mips_set_machine_name(const char *name) { }
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+static inline char *mips_get_machine_name(void) { return NULL; }
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+#endif /* CONFIG_MIPS_MACHINE */
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+
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+#endif /* __ASM_MIPS_MACHINE_H */
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--- /dev/null
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+++ b/arch/mips/kernel/mips_machine.c
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@@ -0,0 +1,86 @@
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+/*
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+ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License version 2 as published
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+ * by the Free Software Foundation.
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+ *
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+ */
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+#include <linux/mm.h>
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+#include <linux/string.h>
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+#include <linux/slab.h>
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+
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+#include <asm/mips_machine.h>
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+
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+static struct mips_machine *mips_machine __initdata;
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+static char *mips_machine_name = "Unknown";
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+
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+#define for_each_machine(mach) \
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+ for ((mach) = (struct mips_machine *)&__mips_machines_start; \
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+ (mach) && \
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+ (unsigned long)(mach) < (unsigned long)&__mips_machines_end; \
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+ (mach)++)
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+
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+__init void mips_set_machine_name(const char *name)
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+{
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+ char *p;
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+
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+ if (name == NULL)
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+ return;
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+
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+ p = kstrdup(name, GFP_KERNEL);
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+ if (!p)
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+ pr_err("MIPS: no memory for machine_name\n");
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+
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+ mips_machine_name = p;
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+}
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+
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+char *mips_get_machine_name(void)
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+{
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+ return mips_machine_name;
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+}
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+
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+__init int mips_machtype_setup(char *id)
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+{
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+ struct mips_machine *mach;
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+
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+ for_each_machine(mach) {
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+ if (mach->mach_id == NULL)
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+ continue;
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+
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+ if (strcmp(mach->mach_id, id) == 0) {
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+ mips_machtype = mach->mach_type;
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+ return 0;
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+ }
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+ }
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+
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+ pr_err("MIPS: no machine found for id '%s', supported machines:\n", id);
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+ pr_err("%-24s : %s\n", "id", "name");
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+ for_each_machine(mach)
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+ pr_err("%-24s : %s\n", mach->mach_id, mach->mach_name);
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+
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+ return 1;
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+}
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+
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+__setup("machtype=", mips_machtype_setup);
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+
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+__init void mips_machine_setup(void)
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+{
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+ struct mips_machine *mach;
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+
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+ for_each_machine(mach) {
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+ if (mips_machtype == mach->mach_type) {
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+ mips_machine = mach;
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+ break;
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+ }
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+ }
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+
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+ if (!mips_machine)
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+ return;
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+
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+ mips_set_machine_name(mips_machine->mach_name);
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+ pr_info("MIPS: machine is %s\n", mips_machine_name);
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+
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+ if (mips_machine->mach_setup)
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+ mips_machine->mach_setup();
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+}
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--- a/arch/mips/kernel/Makefile
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+++ b/arch/mips/kernel/Makefile
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@@ -93,6 +93,7 @@ obj-$(CONFIG_GPIO_TXX9) += gpio_txx9.o
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obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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+obj-$(CONFIG_MIPS_MACHINE) += mips_machine.o
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CFLAGS_cpu-bugs64.o = $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi)
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--- a/arch/mips/Kconfig
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+++ b/arch/mips/Kconfig
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@@ -851,6 +851,9 @@ config MIPS_DISABLE_OBSOLETE_IDE
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config SYNC_R4K
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bool
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+config MIPS_MACHINE
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+ def_bool n
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+
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config NO_IOPORT
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def_bool n
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--- a/arch/mips/kernel/proc.c
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+++ b/arch/mips/kernel/proc.c
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@@ -12,6 +12,7 @@
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#include <asm/cpu-features.h>
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#include <asm/mipsregs.h>
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#include <asm/processor.h>
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+#include <asm/mips_machine.h>
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unsigned int vced_count, vcei_count;
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@@ -31,8 +32,12 @@ static int show_cpuinfo(struct seq_file
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/*
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* For the first processor also print the system type
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*/
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- if (n == 0)
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+ if (n == 0) {
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seq_printf(m, "system type\t\t: %s\n", get_system_type());
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+ if (mips_get_machine_name())
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+ seq_printf(m, "machine\t\t\t: %s\n",
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+ mips_get_machine_name());
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+ }
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seq_printf(m, "processor\t\t: %ld\n", n);
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sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n",
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--- a/arch/mips/kernel/vmlinux.lds.S
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+++ b/arch/mips/kernel/vmlinux.lds.S
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@@ -98,6 +98,13 @@ SECTIONS
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INIT_TEXT_SECTION(PAGE_SIZE)
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INIT_DATA_SECTION(16)
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+ . = ALIGN(4);
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+ .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
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+ __mips_machines_start = .;
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+ *(.mips.machines.init)
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+ __mips_machines_end = .;
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+ }
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+
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/* .exit.text is discarded at runtime, not link time, to deal with
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* references from .rodata
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*/
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