From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH 2/2] Documentation: add imx6ull-evk boot mode documentation
Date: Fri, 9 Aug 2019 14:29:43 +0200 [thread overview]
Message-ID: <20190809122943.2185-2-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20190809122943.2185-1-a.fatoum@pengutronix.de>
The compute module on the 6ULL-EVK has two DIP switches for choosing the
boot mode. Instead of looking them up in the vendor documentation[1] each
time, document them here.
[1]: https://media.digikey.com/pdf/Data%20Sheets/Freescale%20Semi/i.MX_6UL_EVK_QSG.pdf
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
Documentation/boards/imx/nxp-imx6ull-evk.rst | 62 ++++++++++++++++++++
1 file changed, 62 insertions(+)
create mode 100644 Documentation/boards/imx/nxp-imx6ull-evk.rst
diff --git a/Documentation/boards/imx/nxp-imx6ull-evk.rst b/Documentation/boards/imx/nxp-imx6ull-evk.rst
new file mode 100644
index 000000000000..04d35ba73f6d
--- /dev/null
+++ b/Documentation/boards/imx/nxp-imx6ull-evk.rst
@@ -0,0 +1,62 @@
+NXP i.MX6ULL EVK Evaluation Board
+=================================
+
+Board comes with:
+
+* 512MiB of DDR3L SDRAM
+* 256 MB Quad SPI Flash
+
+
+Boot Configuration
+==================
+
+The NXP i.MX6ULL EVK Evaluation Board has two switches responsible for
+configuring bootsource/boot mode:
+
+ * SW602 for selecting appropriate BOOT_MODE
+ * SW601 for selecting appropriate boot medium
+
+In order to select internal boot set SW602 as follows::
+
+ +-----+
+ | |
+ | O | | <--- on = high level
+ | | | |
+ | | O | <--- off = low level
+ | |
+ | 1 2 |
+ +-----+
+
+Bootsource is the QSPI::
+
+ +---------+
+ | |
+ | | | | | |
+ | | | | | | <---- QSPI
+ | O O O O |
+ | |
+ | 1 2 3 4 |
+ +---------+
+
+Bootsource is the MicroSD::
+
+ +---------+
+ | |
+ | | | O | |
+ | | | | | | <---- MicroSD
+ | O O | O |
+ | |
+ | 1 2 3 4 |
+ +---------+
+
+
+Serial boot SW602 setting needed for ``imx-usb-loader`` is as follows::
+
+ +-----+
+ | |
+ | | O | <--- on = high level
+ | | | |
+ | O | | <--- off = low level
+ | |
+ | 1 2 |
+ +-----+
--
2.20.1
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next prev parent reply other threads:[~2019-08-09 12:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-09 12:29 [PATCH 1/2] Documentation: imx8mq-evk: fix typo (s/NXM/NXP/) Ahmad Fatoum
2019-08-09 12:29 ` Ahmad Fatoum [this message]
2019-08-09 12:33 ` [PATCH] fixup! Documentation: add imx6ull-evk boot mode documentation Ahmad Fatoum
2019-08-12 7:08 ` [PATCH 1/2] Documentation: imx8mq-evk: fix typo (s/NXM/NXP/) Sascha Hauer
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