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powerpc/powernv: Add opal details to the hardware description 

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
This commit is contained in:
Michael Ellerman 2022-09-30 18:27:08 +10:00
parent 5412297079
commit 37576cb096
1 changed files with 22 additions and 0 deletions
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22
arch/powerpc/platforms/powernv/setup.c
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@ -17,6 +17,7 @@
#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>
@ -207,8 +208,29 @@ static void __init pnv_setup_arch(void)
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)
{
pnv_add_hw_description();
/*
* Initialize the LPC bus now so that legacy serial
* ports can be found on it