155 lines
4.4 KiB
Diff
155 lines
4.4 KiB
Diff
From dd4bb7e821d112bff981016fd4e7c014ca9425f9 Mon Sep 17 00:00:00 2001
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From: John Crispin <blogic@openwrt.org>
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Date: Thu, 11 Apr 2013 05:34:59 +0000
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Subject: [PATCH 100/137] MIPS: move mips_{set,get}_machine_name() to a more
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generic place
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Previously this functionality was only available to users of the mips_machine
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api. Moving the code to prom.c allows us to also add a OF wrapper.
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Signed-off-by: John Crispin <blogic@openwrt.org>
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Patchwork: http://patchwork.linux-mips.org/patch/5164/
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---
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arch/mips/include/asm/mips_machine.h | 4 ----
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arch/mips/include/asm/prom.h | 3 +++
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arch/mips/kernel/mips_machine.c | 21 ---------------------
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arch/mips/kernel/proc.c | 2 +-
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arch/mips/kernel/prom.c | 31 +++++++++++++++++++++++++++++++
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5 files changed, 35 insertions(+), 26 deletions(-)
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--- a/arch/mips/include/asm/mips_machine.h
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+++ b/arch/mips/include/asm/mips_machine.h
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@@ -42,13 +42,9 @@ extern long __mips_machines_end;
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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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#endif /* __ASM_MIPS_MACHINE_H */
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--- a/arch/mips/include/asm/prom.h
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+++ b/arch/mips/include/asm/prom.h
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@@ -48,4 +48,7 @@ extern void __dt_setup_arch(struct boot_
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static inline void device_tree_init(void) { }
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#endif /* CONFIG_OF */
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+extern char *mips_get_machine_name(void);
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+extern void mips_set_machine_name(const char *name);
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+
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#endif /* __ASM_PROM_H */
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--- a/arch/mips/kernel/mips_machine.c
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+++ b/arch/mips/kernel/mips_machine.c
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@@ -13,7 +13,6 @@
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#include <asm/mips_machine.h>
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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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#define for_each_machine(mach) \
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for ((mach) = (struct mips_machine *)&__mips_machines_start; \
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@@ -21,25 +20,6 @@ static char *mips_machine_name = "Unknow
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(unsigned long)(mach) < (unsigned long)&__mips_machines_end; \
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(mach)++)
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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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@@ -79,7 +59,6 @@ __init void mips_machine_setup(void)
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return;
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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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if (mips_machine->mach_setup)
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mips_machine->mach_setup();
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--- a/arch/mips/kernel/proc.c
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+++ b/arch/mips/kernel/proc.c
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@@ -12,7 +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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+#include <asm/prom.h>
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unsigned int vced_count, vcei_count;
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--- a/arch/mips/kernel/prom.c
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+++ b/arch/mips/kernel/prom.c
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@@ -23,6 +23,22 @@
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#include <asm/page.h>
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#include <asm/prom.h>
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+static char mips_machine_name[64] = "Unknown";
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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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+ if (name == NULL)
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+ return;
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+
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+ strncpy(mips_machine_name, name, sizeof(mips_machine_name));
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+ pr_info("MIPS: machine is %s\n", mips_get_machine_name());
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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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int __init early_init_dt_scan_memory_arch(unsigned long node,
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const char *uname, int depth,
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void *data)
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@@ -50,6 +66,18 @@ void __init early_init_dt_setup_initrd_a
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}
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#endif
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+int __init early_init_dt_scan_model(unsigned long node, const char *uname,
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+ int depth, void *data)
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+{
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+ if (!depth) {
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+ char *model = of_get_flat_dt_prop(node, "model", NULL);
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+
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+ if (model)
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+ mips_set_machine_name(model);
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+ }
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+ return 0;
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+}
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+
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void __init early_init_devtree(void *params)
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{
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/* Setup flat device-tree pointer */
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@@ -65,6 +93,9 @@ void __init early_init_devtree(void *par
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/* Scan memory nodes */
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of_scan_flat_dt(early_init_dt_scan_root, NULL);
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of_scan_flat_dt(early_init_dt_scan_memory_arch, NULL);
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+
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+ /* try to load the mips machine name */
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+ of_scan_flat_dt(early_init_dt_scan_model, NULL);
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}
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void __init __dt_setup_arch(struct boot_param_header *bph)
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