Commit 37576cb0 authored by Michael Ellerman's avatar Michael Ellerman
Browse files

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: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220930082709.55830-5-mpe@ellerman.id.au
parent 54122970

arch/powerpc/platforms/powernv/setup.c

+22 −0
Original line number Diff line number Diff line
@@ -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