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From: Marc Reilly <marc@cpdesign.com.au>
To: barebox@lists.infradead.org
Subject: [PATCH 2/4] ARM: beaglebone: add helper init script for checking if BBBW
Date: Mon, 14 Jun 2021 08:26:37 +1000	[thread overview]
Message-ID: <20210613222639.13190-2-marc@cpdesign.com.au> (raw)
In-Reply-To: <20210613222639.13190-1-marc@cpdesign.com.au>

This adds a check against the eeprom contents to see if the board is a
Beaglebone black wireless. (two bytes at offset 0x12 of eeprom will be
"BW").
If it is, the global board.variant is updated to "boneblackwireless"

Signed-off-by: Marc Reilly <marc@cpdesign.com.au>
---
 .../defaultenv-beaglebone/data/bbb-eeprom-0x0C      |  1 +
 .../defaultenv-beaglebone/init/check-bbb-type       | 13 +++++++++++++
 2 files changed, 14 insertions(+)
 create mode 100644 arch/arm/boards/beaglebone/defaultenv-beaglebone/data/bbb-eeprom-0x0C
 create mode 100644 arch/arm/boards/beaglebone/defaultenv-beaglebone/init/check-bbb-type

diff --git a/arch/arm/boards/beaglebone/defaultenv-beaglebone/data/bbb-eeprom-0x0C b/arch/arm/boards/beaglebone/defaultenv-beaglebone/data/bbb-eeprom-0x0C
new file mode 100644
index 000000000..258b93951
--- /dev/null
+++ b/arch/arm/boards/beaglebone/defaultenv-beaglebone/data/bbb-eeprom-0x0C
@@ -0,0 +1 @@
+BW
diff --git a/arch/arm/boards/beaglebone/defaultenv-beaglebone/init/check-bbb-type b/arch/arm/boards/beaglebone/defaultenv-beaglebone/init/check-bbb-type
new file mode 100644
index 000000000..b7c8b3683
--- /dev/null
+++ b/arch/arm/boards/beaglebone/defaultenv-beaglebone/init/check-bbb-type
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+memcmp -b -s /dev/eeprom0 -d /env/data/bbb-eeprom-0x0C 0x0c 0x00 2
+result=$?
+echo $result
+
+if [ $result = 0 ]
+then
+        echo "Beaglebone Wireless detected"
+        global.board.variant=boneblackwireless
+else
+        echo "Beaglebone Black (non-wireless) detected"
+fi
-- 
2.31.1


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  reply	other threads:[~2021-06-13 22:30 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-13 22:26 [PATCH 1/4] common: boot: don't return too early in bootscript dryrun Marc Reilly
2021-06-13 22:26 ` Marc Reilly [this message]
2021-06-15  9:11   ` [PATCH 2/4] ARM: beaglebone: add helper init script for checking if BBBW Sascha Hauer
2021-06-13 22:26 ` [PATCH 3/4] ARM: am33xx: add define for 800Mhz MPU PLL point Marc Reilly
2021-06-15  9:14   ` Sascha Hauer
2021-06-13 22:26 ` [PATCH 4/4] ARM: beaglebone: init MPU speed to 800Mhz Marc Reilly
2021-06-14  8:51 ` [PATCH 1/4] common: boot: don't return too early in bootscript dryrun Ahmad Fatoum
2021-06-15  5:31   ` Marc Reilly
2021-06-15  8:59   ` Sascha Hauer

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