brcm2708: organize kernel patches

[openwrt/staging/dedeckeh.git] / target / linux / brcm2708 / patches-4.19 / 950-0706-arch-arm64-Add-Revision-Serial-Model-to-cpuinfo.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0706-arch-arm64-Add-Revision-Serial-Model-to-cpuinfo.patch b/target/linux/brcm2708/patches-4.19/950-0706-arch-arm64-Add-Revision-Serial-Model-to-cpuinfo.patch
new file mode 100644 (file)
index 0000000..5e29b47
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0706-arch-arm64-Add-Revision-Serial-Model-to-cpuinfo.patch
@@ -0,0 +1,58 @@
+From aabfcb0abbc34ca5f3c4b4f872123166eca2e100 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 3 Sep 2019 18:17:25 +0100
+Subject: [PATCH] arch/arm64: Add Revision, Serial, Model to cpuinfo
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm64/kernel/cpuinfo.c | 25 +++++++++++++++++++++++++
+ 1 file changed, 25 insertions(+)
+
+--- a/arch/arm64/kernel/cpuinfo.c
++++ b/arch/arm64/kernel/cpuinfo.c
+@@ -27,6 +27,7 @@
+ #include <linux/elf.h>
+ #include <linux/init.h>
+ #include <linux/kernel.h>
++#include <linux/of_platform.h>
+ #include <linux/personality.h>
+ #include <linux/preempt.h>
+ #include <linux/printk.h>
+@@ -126,6 +127,10 @@ static int c_show(struct seq_file *m, vo
+ {
+       int i, j;
+       bool compat = personality(current->personality) == PER_LINUX32;
++      struct device_node *np;
++      const char *model;
++      const char *serial;
++      u32 revision;
+ 
+       for_each_online_cpu(i) {
+               struct cpuinfo_arm64 *cpuinfo = &per_cpu(cpu_data, i);
+@@ -177,6 +182,26 @@ static int c_show(struct seq_file *m, vo
+               seq_printf(m, "CPU revision\t: %d\n\n", MIDR_REVISION(midr));
+       }
+ 
++      seq_printf(m, "Hardware\t: BCM2835\n");
++
++      np = of_find_node_by_path("/system");
++      if (np) {
++              if (!of_property_read_u32(np, "linux,revision", &revision))
++                      seq_printf(m, "Revision\t: %04x\n", revision);
++              of_node_put(np);
++      }
++
++      np = of_find_node_by_path("/");
++      if (np) {
++              if (!of_property_read_string(np, "serial-number",
++                                           &serial))
++                      seq_printf(m, "Serial\t\t: %s\n", serial);
++              if (!of_property_read_string(np, "model",
++                                           &model))
++                      seq_printf(m, "Model\t\t: %s\n", model);
++              of_node_put(np);
++      }
++
+       return 0;
+ }
+