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From: "Pali Rohár" <pali@kernel.org>
To: Stefan Roese <sr@denx.de>, Marek Behun <marek.behun@nic.cz>
Cc: u-boot@lists.denx.de
Subject: [PATCH 2/4] board: turris: Do not cache Atsha device in BSS
Date: Fri,  8 Apr 2022 16:30:13 +0200	[thread overview]
Message-ID: <20220408143015.23163-2-pali@kernel.org> (raw)
In-Reply-To: <20220408143015.23163-1-pali@kernel.org>

Atsha device is used prior relocation and at this early stage BSS does not
have to be ready yet. So do not cache Atsha device in BSS.

Fixes support for other Turris routers.

Signed-off-by: Pali Rohár <pali@kernel.org>
---
 board/CZ.NIC/turris_atsha_otp.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/board/CZ.NIC/turris_atsha_otp.c b/board/CZ.NIC/turris_atsha_otp.c
index a4a77c74fb19..840721a9b737 100644
--- a/board/CZ.NIC/turris_atsha_otp.c
+++ b/board/CZ.NIC/turris_atsha_otp.c
@@ -18,10 +18,8 @@
 
 static struct udevice *get_atsha204a_dev(void)
 {
-	static struct udevice *dev;
-
-	if (dev)
-		return dev;
+	/* Cannot be static because BSS does not have to be ready at this early stage */
+	struct udevice *dev;
 
 	if (uclass_get_device_by_name(UCLASS_MISC, "atsha204a@64", &dev)) {
 		puts("Cannot find ATSHA204A on I2C bus!\n");
-- 
2.20.1


  reply	other threads:[~2022-04-08 14:31 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-08 14:30 [PATCH 1/4] board: turris: Move Turris Atsha OTP code to separate file Pali Rohár
2022-04-08 14:30 ` Pali Rohár [this message]
2022-04-08 17:45   ` [PATCH 2/4] board: turris: Do not cache Atsha device in BSS Marek Behún
2022-04-21 14:14   ` Stefan Roese
2022-04-08 14:30 ` [PATCH 3/4] board: turris: Allow to specify first eth idx of first MAC address Pali Rohár
2022-04-08 17:45   ` Marek Behún
2022-04-21 14:15   ` Stefan Roese
2022-04-08 14:30 ` [PATCH 4/4] board: turris: Rename atsha204a@64 DT node to crypto@64 Pali Rohár
2022-04-08 17:46   ` Marek Behún
2022-04-21 14:15   ` Stefan Roese
2022-04-08 17:45 ` [PATCH 1/4] board: turris: Move Turris Atsha OTP code to separate file Marek Behún
2022-04-21 14:14 ` Stefan Roese

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