From: Rouven Czerwinski <r.czerwinski@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Subject: [PATCH] of: base: ignore disabled memory nodes
Date: Mon, 9 Nov 2020 06:51:50 +0100 [thread overview]
Message-ID: <20201109055150.16444-1-r.czerwinski@pengutronix.de> (raw)
Qemu with the secure extension enabled will insert a secram node into
the device tree:
secram@e000000 {
secure-status = "okay";
status = "disabled";
reg = <0x0 0xe000000 0x0 0x1000000>;
device_type = "memory";
};
Barebox would previously parse this node, add it as a memory bank and
than reinsert an enabled node into the fixed up device tree.
Fix this by skipping disabled memory nodes.
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
---
drivers/of/base.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 0a2632f963..32cb1e78a5 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -2090,6 +2090,9 @@ int of_add_memory(struct device_node *node, bool dump)
if (!resource_size(&res))
continue;
+ if (!of_device_is_available(node))
+ continue;
+
of_add_memory_bank(node, dump, mem_bank_num,
res.start, resource_size(&res));
mem_bank_num++;
--
2.28.0
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next reply other threads:[~2020-11-09 5:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-09 5:51 Rouven Czerwinski [this message]
2020-11-09 9:23 ` Sascha Hauer
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