From 23abf07ce46b897a9460aea88eb3e8a0bc67a0b7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pali=20Roh=C3=A1r?= Date: Mon, 1 Feb 2021 12:24:42 +0100 Subject: docs: marvell: Add information into CLOCKSPRESET option how to identify CPU frequency MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Pali Rohár Change-Id: I5310c30051703bbf9f377762a00eb6a8188c6fa1 --- docs/plat/marvell/armada/build.rst | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/docs/plat/marvell/armada/build.rst b/docs/plat/marvell/armada/build.rst index 2715f2601..a4116cd4e 100644 --- a/docs/plat/marvell/armada/build.rst +++ b/docs/plat/marvell/armada/build.rst @@ -168,6 +168,13 @@ There are several build options: - CPU_1000_DDR_800 - CPU at 1000 MHz, DDR at 800 MHz - CPU_1200_DDR_750 - CPU at 1200 MHz, DDR at 750 MHz + Look at Armada37x0 chip package marking on board to identify correct CPU frequency. + The last line on package marking (next line after the 88F37x0 line) should contain: + + - C080 or I080 - chip with 800 MHz CPU - use ``CLOCKSPRESET=CPU_800_DDR_800`` + - C100 or I100 - chip with 1000 MHz CPU - use ``CLOCKSPRESET=CPU_1000_DDR_800`` + - C120 - chip with 1200 MHz CPU - use ``CLOCKSPRESET=CPU_1200_DDR_750`` + - BOOTDEV For Armada37x0 only, the flash boot device, default is ``SPINOR``. -- cgit v1.2.3