lede/target/linux/bcm27xx/patches-6.12/950-0135-arch-arm64-Add-Revision-Serial-Model-to-cpuinfo.patch
=?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= d81c03f05e bcm27xx: add 6.12 patches from RPi repo
These patches were generated from:
https://github.com/raspberrypi/linux/commits/rpi-6.12.y
With the following command:
git format-patch -N v6.12.27..HEAD
(HEAD -> 8d3206ee456a5ecdf9ddbfd8e5e231e4f0cd716e)

Exceptions:
- (def)configs patches
- github workflows patches
- applied & reverted patches
- readme patches
- wireless patches

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2025-06-20 17:01:06 +08:00

58 lines
1.6 KiB
Diff

From c799122659ee4066f04f5c856cc02f072871aea4 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 | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -17,6 +17,8 @@
#include <linux/elf.h>
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
#include <linux/personality.h>
#include <linux/preempt.h>
#include <linux/printk.h>
@@ -195,6 +197,10 @@ 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);
@@ -255,6 +261,24 @@ static int c_show(struct seq_file *m, vo
seq_printf(m, "CPU revision\t: %d\n\n", MIDR_REVISION(midr));
}
+ 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;
}