98 lines
2.8 KiB
Diff
98 lines
2.8 KiB
Diff
From 0184f7b64c68fe9606559e86bdd288de01c87a85 Mon Sep 17 00:00:00 2001
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From: John Crispin <blogic@openwrt.org>
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Date: Sun, 17 Mar 2013 10:30:48 +0100
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Subject: [PATCH 200/208] MIPS: read the mips_machine name from OF and output
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it in /proc/cpuinfo
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This allows the userland to be compatible to the devive probing of mips_machine.
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Signed-off-by: John Crispin <blogic@openwrt.org>
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---
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arch/mips/include/asm/prom.h | 3 +++
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arch/mips/kernel/proc.c | 6 +++++-
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arch/mips/kernel/prom.c | 24 ++++++++++++++++++++++++
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3 files changed, 32 insertions(+), 1 deletion(-)
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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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@@ -44,8 +44,11 @@ extern void __dt_setup_arch(struct boot_
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__dt_setup_arch(&__dtb_##sym##_begin); \
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})
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+extern char *of_mips_get_machine_name(void);
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+
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#else /* CONFIG_OF */
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static inline void device_tree_init(void) { }
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+static char *of_mips_get_machine_name(void) { return NULL; }
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#endif /* CONFIG_OF */
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#endif /* __ASM_PROM_H */
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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/prom.h>
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#include <asm/mips_machine.h>
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unsigned int vced_count, vcei_count;
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@@ -34,7 +35,10 @@ static int show_cpuinfo(struct seq_file
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*/
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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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+ if (of_mips_get_machine_name())
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+ seq_printf(m, "machine\t\t\t: %s\n",
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+ of_mips_get_machine_name());
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+ else 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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--- a/arch/mips/kernel/prom.c
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+++ b/arch/mips/kernel/prom.c
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@@ -23,6 +23,13 @@
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#include <asm/page.h>
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#include <asm/prom.h>
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+static char of_mips_machine_name[64] = "Unknown";
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+
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+char *of_mips_get_machine_name(void)
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+{
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+ return of_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 +57,20 @@ 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,
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+ const char *uname, int depth,
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+ 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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+ if (model) {
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+ snprintf(of_mips_machine_name, sizeof(of_mips_machine_name), model);
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+ pr_info("MIPS: machine is %s\n", of_mips_machine_name);
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+ }
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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 +86,9 @@ 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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