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powerpc/powernv: Add opal details to the hardware description
author
Michael Ellerman
<mpe@ellerman.id.au>
Fri, 30 Sep 2022 08:27:08 +0000
(18:27 +1000)
committer
Michael Ellerman
<mpe@ellerman.id.au>
Fri, 30 Sep 2022 08:35:53 +0000
(18:35 +1000)
Add OPAL version details to the hardware description, which is printed
at boot and in case of an oops.
eg: Hardware name: ... opal:v6.2
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link:
https://lore.kernel.org/r/20220930082709.55830-5-mpe@ellerman.id.au
arch/powerpc/platforms/powernv/setup.c
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diff --git
a/arch/powerpc/platforms/powernv/setup.c
b/arch/powerpc/platforms/powernv/setup.c
index
dac545a
..
61ab2d3
100644
(file)
--- a/
arch/powerpc/platforms/powernv/setup.c
+++ b/
arch/powerpc/platforms/powernv/setup.c
@@
-17,6
+17,7
@@
#include <linux/console.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/console.h>
#include <linux/delay.h>
#include <linux/irq.h>
+#include <linux/seq_buf.h>
#include <linux/seq_file.h>
#include <linux/of.h>
#include <linux/of_fdt.h>
#include <linux/seq_file.h>
#include <linux/of.h>
#include <linux/of_fdt.h>
@@
-207,8
+208,29
@@
static void __init pnv_setup_arch(void)
pnv_rng_init();
}
pnv_rng_init();
}
+static void __init pnv_add_hw_description(void)
+{
+ struct device_node *dn;
+ const char *s;
+
+ dn = of_find_node_by_path("/ibm,opal/firmware");
+ if (!dn)
+ return;
+
+ if (of_property_read_string(dn, "version", &s) == 0 ||
+ of_property_read_string(dn, "git-id", &s) == 0)
+ seq_buf_printf(&ppc_hw_desc, "opal:%s ", s);
+
+ if (of_property_read_string(dn, "mi-version", &s) == 0)
+ seq_buf_printf(&ppc_hw_desc, "mi:%s ", s);
+
+ of_node_put(dn);
+}
+
static void __init pnv_init(void)
{
static void __init pnv_init(void)
{
+ pnv_add_hw_description();
+
/*
* Initialize the LPC bus now so that legacy serial
* ports can be found on it
/*
* Initialize the LPC bus now so that legacy serial
* ports can be found on it