diff options
Diffstat (limited to 'target/linux/generic/patches-2.6.32/020-mips_multi_machine_support.patch')
| -rw-r--r-- | target/linux/generic/patches-2.6.32/020-mips_multi_machine_support.patch | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/target/linux/generic/patches-2.6.32/020-mips_multi_machine_support.patch b/target/linux/generic/patches-2.6.32/020-mips_multi_machine_support.patch new file mode 100644 index 0000000000..d73b2d1523 --- /dev/null +++ b/target/linux/generic/patches-2.6.32/020-mips_multi_machine_support.patch @@ -0,0 +1,208 @@ +--- /dev/null ++++ b/arch/mips/include/asm/mips_machine.h +@@ -0,0 +1,54 @@ ++/* ++ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published ++ * by the Free Software Foundation. ++ * ++ */ ++ ++#ifndef __ASM_MIPS_MACHINE_H ++#define __ASM_MIPS_MACHINE_H ++ ++#include <linux/init.h> ++#include <linux/list.h> ++ ++#include <asm/bootinfo.h> ++ ++struct mips_machine { ++ unsigned long mach_type; ++ const char *mach_id; ++ const char *mach_name; ++ void (*mach_setup)(void); ++}; ++ ++#define MIPS_MACHINE(_type, _id, _name, _setup) \ ++static const char machine_name_##_type[] __initconst \ ++ __aligned(1) = _name; \ ++static const char machine_id_##_type[] __initconst \ ++ __aligned(1) = _id; \ ++static struct mips_machine machine_##_type \ ++ __used __section(.mips.machines.init) = \ ++{ \ ++ .mach_type = _type, \ ++ .mach_id = machine_id_##_type, \ ++ .mach_name = machine_name_##_type, \ ++ .mach_setup = _setup, \ ++}; ++ ++extern long __mips_machines_start; ++extern long __mips_machines_end; ++ ++#ifdef CONFIG_MIPS_MACHINE ++int mips_machtype_setup(char *id) __init; ++void mips_machine_setup(void) __init; ++void mips_set_machine_name(const char *name) __init; ++char *mips_get_machine_name(void); ++#else ++static inline int mips_machtype_setup(char *id) { return 1; } ++static inline void mips_machine_setup(void) { } ++static inline void mips_set_machine_name(const char *name) { } ++static inline char *mips_get_machine_name(void) { return NULL; } ++#endif /* CONFIG_MIPS_MACHINE */ ++ ++#endif /* __ASM_MIPS_MACHINE_H */ +--- /dev/null ++++ b/arch/mips/kernel/mips_machine.c +@@ -0,0 +1,86 @@ ++/* ++ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published ++ * by the Free Software Foundation. ++ * ++ */ ++#include <linux/mm.h> ++#include <linux/string.h> ++#include <linux/slab.h> ++ ++#include <asm/mips_machine.h> ++ ++static struct mips_machine *mips_machine __initdata; ++static char *mips_machine_name = "Unknown"; ++ ++#define for_each_machine(mach) \ ++ for ((mach) = (struct mips_machine *)&__mips_machines_start; \ ++ (mach) && \ ++ (unsigned long)(mach) < (unsigned long)&__mips_machines_end; \ ++ (mach)++) ++ ++__init void mips_set_machine_name(const char *name) ++{ ++ char *p; ++ ++ if (name == NULL) ++ return; ++ ++ p = kstrdup(name, GFP_KERNEL); ++ if (!p) ++ pr_err("MIPS: no memory for machine_name\n"); ++ ++ mips_machine_name = p; ++} ++ ++char *mips_get_machine_name(void) ++{ ++ return mips_machine_name; ++} ++ ++__init int mips_machtype_setup(char *id) ++{ ++ struct mips_machine *mach; ++ ++ for_each_machine(mach) { ++ if (mach->mach_id == NULL) ++ continue; ++ ++ if (strcmp(mach->mach_id, id) == 0) { ++ mips_machtype = mach->mach_type; ++ return 0; ++ } ++ } ++ ++ pr_err("MIPS: no machine found for id '%s', supported machines:\n", id); ++ pr_err("%-24s : %s\n", "id", "name"); ++ for_each_machine(mach) ++ pr_err("%-24s : %s\n", mach->mach_id, mach->mach_name); ++ ++ return 1; ++} ++ ++__setup("machtype=", mips_machtype_setup); ++ ++__init void mips_machine_setup(void) ++{ ++ struct mips_machine *mach; ++ ++ for_each_machine(mach) { ++ if (mips_machtype == mach->mach_type) { ++ mips_machine = mach; ++ break; ++ } ++ } ++ ++ if (!mips_machine) ++ return; ++ ++ mips_set_machine_name(mips_machine->mach_name); ++ pr_info("MIPS: machine is %s\n", mips_machine_name); ++ ++ if (mips_machine->mach_setup) ++ mips_machine->mach_setup(); ++} +--- a/arch/mips/kernel/Makefile ++++ b/arch/mips/kernel/Makefile +@@ -87,6 +87,7 @@ obj-$(CONFIG_GPIO_TXX9) += gpio_txx9.o + + obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o + obj-$(CONFIG_EARLY_PRINTK) += early_printk.o ++obj-$(CONFIG_MIPS_MACHINE) += mips_machine.o + + 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) + +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -854,6 +854,9 @@ config MIPS_DISABLE_OBSOLETE_IDE + config SYNC_R4K + bool + ++config MIPS_MACHINE ++ def_bool n ++ + config NO_IOPORT + def_bool n + +--- a/arch/mips/kernel/proc.c ++++ b/arch/mips/kernel/proc.c +@@ -12,6 +12,7 @@ + #include <asm/cpu-features.h> + #include <asm/mipsregs.h> + #include <asm/processor.h> ++#include <asm/mips_machine.h> + + unsigned int vced_count, vcei_count; + +@@ -31,8 +32,12 @@ static int show_cpuinfo(struct seq_file + /* + * For the first processor also print the system type + */ +- if (n == 0) ++ if (n == 0) { + seq_printf(m, "system type\t\t: %s\n", get_system_type()); ++ if (mips_get_machine_name()) ++ seq_printf(m, "machine\t\t\t: %s\n", ++ mips_get_machine_name()); ++ } + + seq_printf(m, "processor\t\t: %ld\n", n); + sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n", +--- a/arch/mips/kernel/vmlinux.lds.S ++++ b/arch/mips/kernel/vmlinux.lds.S +@@ -97,6 +97,13 @@ SECTIONS + INIT_TEXT_SECTION(PAGE_SIZE) + INIT_DATA_SECTION(16) + ++ . = ALIGN(4); ++ .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) { ++ __mips_machines_start = .; ++ *(.mips.machines.init) ++ __mips_machines_end = .; ++ } ++ + /* .exit.text is discarded at runtime, not link time, to deal with + * references from .rodata + */ |