[lantiq] add a missing patch that makes board detection work again

Signed-off-by: John Crispin <blogic@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36186 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/lantiq/patches-3.8/0200-MIPS-read-the-mips_machine-name-from-OF-and-output-i.patch b/target/linux/lantiq/patches-3.8/0200-MIPS-read-the-mips_machine-name-from-OF-and-output-i.patch
new file mode 100644 (file)
index 0000000..3bdd136
--- /dev/null
+++ b/target/linux/lantiq/patches-3.8/0200-MIPS-read-the-mips_machine-name-from-OF-and-output-i.patch
@@ -0,0 +1,107 @@
+From 0184f7b64c68fe9606559e86bdd288de01c87a85 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Sun, 17 Mar 2013 10:30:48 +0100
+Subject: [PATCH 200/208] MIPS: read the mips_machine name from OF and output
+ it in /proc/cpuinfo
+
+This allows the userland to be compatible to the devive probing of mips_machine.
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ arch/mips/include/asm/prom.h |    3 +++
+ arch/mips/kernel/proc.c      |    6 +++++-
+ arch/mips/kernel/prom.c      |   24 ++++++++++++++++++++++++
+ 3 files changed, 32 insertions(+), 1 deletion(-)
+
+diff --git a/arch/mips/include/asm/prom.h b/arch/mips/include/asm/prom.h
+index 8808bf5..a4ad354 100644
+--- a/arch/mips/include/asm/prom.h
++++ b/arch/mips/include/asm/prom.h
+@@ -44,8 +44,11 @@ extern void __dt_setup_arch(struct boot_param_header *bph);
+       __dt_setup_arch(&__dtb_##sym##_begin);                          \
+ })
+ 
++extern char *of_mips_get_machine_name(void);
++
+ #else /* CONFIG_OF */
+ static inline void device_tree_init(void) { }
++static char *of_mips_get_machine_name(void) { return NULL; }
+ #endif /* CONFIG_OF */
+ 
+ #endif /* __ASM_PROM_H */
+diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
+index 135c4aa..9ab3d13 100644
+--- 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/prom.h>
+ #include <asm/mips_machine.h>
+ 
+ unsigned int vced_count, vcei_count;
+@@ -34,7 +35,10 @@ static int show_cpuinfo(struct seq_file *m, void *v)
+        */
+       if (n == 0) {
+               seq_printf(m, "system type\t\t: %s\n", get_system_type());
+-              if (mips_get_machine_name())
++              if (of_mips_get_machine_name())
++                      seq_printf(m, "machine\t\t\t: %s\n",
++                                 of_mips_get_machine_name());
++              else if (mips_get_machine_name())
+                       seq_printf(m, "machine\t\t\t: %s\n",
+                                  mips_get_machine_name());
+       }
+diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
+index 028f6f8..1aa68a2 100644
+--- a/arch/mips/kernel/prom.c
++++ b/arch/mips/kernel/prom.c
+@@ -23,6 +23,13 @@
+ #include <asm/page.h>
+ #include <asm/prom.h>
+ 
++static char of_mips_machine_name[64] = "Unknown";
++
++char *of_mips_get_machine_name(void)
++{
++      return of_mips_machine_name;
++}
++
+ int __init early_init_dt_scan_memory_arch(unsigned long node,
+                                         const char *uname, int depth,
+                                         void *data)
+@@ -50,6 +57,20 @@ void __init early_init_dt_setup_initrd_arch(unsigned long start,
+ }
+ #endif
+ 
++int __init early_init_dt_scan_model(unsigned long node,
++      const char *uname, int depth,
++      void *data)
++{
++      if (!depth) {
++              char *model = of_get_flat_dt_prop(node, "model", NULL);
++              if (model) {
++                      snprintf(of_mips_machine_name, sizeof(of_mips_machine_name), model);
++                      pr_info("MIPS: machine is %s\n", of_mips_machine_name);
++              }
++      }
++      return 0;
++}
++
+ void __init early_init_devtree(void *params)
+ {
+       /* Setup flat device-tree pointer */
+@@ -65,6 +86,9 @@ void __init early_init_devtree(void *params)
+       /* Scan memory nodes */
+       of_scan_flat_dt(early_init_dt_scan_root, NULL);
+       of_scan_flat_dt(early_init_dt_scan_memory_arch, NULL);
++
++      /* try to load the mips machine name */
++      of_scan_flat_dt(early_init_dt_scan_model, NULL);
+ }
+ 
+ void __init __dt_setup_arch(struct boot_param_header *bph)
+-- 
+1.7.10.4
+