96aa0c6b0b
Patches from Raspberry Pi repo: https://github.com/raspberrypi/linux/commits/rpi-4.9.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
53 lines
1.6 KiB
Diff
53 lines
1.6 KiB
Diff
From c33ee72bce07fc83e4797ebea1bce97c0b301ba2 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
|
|
Date: Wed, 3 Jun 2015 12:26:13 +0200
|
|
Subject: [PATCH] ARM: bcm2835: Set Serial number and Revision
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
The VideoCore bootloader passes in Serial number and
|
|
Revision number through Device Tree. Make these available to
|
|
userspace through /proc/cpuinfo.
|
|
|
|
Mainline status:
|
|
|
|
There is a commit in linux-next that standardize passing the serial
|
|
number through Device Tree (string: /serial-number):
|
|
ARM: 8355/1: arch: Show the serial number from devicetree in cpuinfo
|
|
|
|
There was an attempt to do the same with the revision number, but it
|
|
didn't get in:
|
|
[PATCH v2 1/2] arm: devtree: Set system_rev from DT revision
|
|
|
|
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
|
|
---
|
|
arch/arm/mach-bcm/board_bcm2835.c | 10 ++++++++++
|
|
1 file changed, 10 insertions(+)
|
|
|
|
--- a/arch/arm/mach-bcm/board_bcm2835.c
|
|
+++ b/arch/arm/mach-bcm/board_bcm2835.c
|
|
@@ -16,13 +16,23 @@
|
|
#include <linux/irqchip.h>
|
|
#include <linux/of_address.h>
|
|
#include <linux/clk/bcm2835.h>
|
|
+#include <asm/system_info.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
|
|
static void __init bcm2835_init(void)
|
|
{
|
|
+ struct device_node *np = of_find_node_by_path("/system");
|
|
+ u32 val;
|
|
+ u64 val64;
|
|
+
|
|
bcm2835_init_clocks();
|
|
+
|
|
+ if (!of_property_read_u32(np, "linux,revision", &val))
|
|
+ system_rev = val;
|
|
+ if (!of_property_read_u64(np, "linux,serial", &val64))
|
|
+ system_serial_low = val64;
|
|
}
|
|
|
|
static const char * const bcm2835_compat[] = {
|