From: Michael Ellerman <mpe@ellerman.id.au>
To: <linuxppc-dev@lists.ozlabs.org>
Cc: nathanl@linux.ibm.com
Subject: [PATCH v3 5/6] powerpc/powernv: Add opal details to the hardware description
Date: Fri, 30 Sep 2022 18:27:08 +1000 [thread overview]
Message-ID: <20220930082709.55830-5-mpe@ellerman.id.au> (raw)
In-Reply-To: <20220930082709.55830-1-mpe@ellerman.id.au>
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>
---
arch/powerpc/platforms/powernv/setup.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
v3: Drop quotes for brevity.
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
index dac545aa0308..61ab2d38ff4b 100644
--- 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/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
--
2.37.3
next prev parent reply other threads:[~2022-09-30 8:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-30 8:27 [PATCH v3 1/6] powerpc: Add hardware description string Michael Ellerman
2022-09-30 8:27 ` [PATCH v3 2/6] powerpc: Add PVR & CPU name to hardware description Michael Ellerman
2022-09-30 8:27 ` [PATCH v3 3/6] powerpc/64: Add logical PVR to the " Michael Ellerman
2022-09-30 8:27 ` [PATCH v3 4/6] powerpc: Add device-tree model " Michael Ellerman
2022-09-30 8:27 ` Michael Ellerman [this message]
2022-09-30 8:27 ` [PATCH v3 6/6] powerpc/pseries: Add firmware details " Michael Ellerman
2022-10-04 13:26 ` [PATCH v3 1/6] powerpc: Add hardware description string Michael Ellerman
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