From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Gortmaker Date: Mon, 16 Mar 2015 15:53:05 -0400 Subject: [U-Boot] [PATCH v2] sbc8548: document how to write main flash from alternate flash In-Reply-To: <550722CD.20009@freescale.com> References: <550722CD.20009@freescale.com> Message-ID: <1426535585-761-1-git-send-email-paul.gortmaker@windriver.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de If you are running on the alternate flash in order to fix a corrupted main flash image, it might be good to have the steps for that documented as well. Also delete any protect commands from non-active flash banks; they are only required for the instances where you are writing to the currently in use flash image. Signed-off-by: Paul Gortmaker --- [v2: drop protect commands from instances where we flash the non active flash bank ; it wasn't protected anyway.] board/sbc8548/README | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/board/sbc8548/README b/board/sbc8548/README index feac5e3e63e5..92731645f266 100644 --- a/board/sbc8548/README +++ b/board/sbc8548/README @@ -132,11 +132,19 @@ image in the SODIMM that is built with CONFIG_SYS_ALT_BOOT enabled, tftp u-boot.bin md 200000 10 - protect off all era eff00000 efffffff cp.b 200000 eff00000 100000 md eff00000 10 - protect on all + +If you are running the alternate 64MB /CS0 settings and want to update +the "normal" default 8MB u-boot image, then (built with CONFIG_SYS_ALT_BOOT +disabled) the steps will become: + + tftp u-boot.bin + md 200000 10 + erase effa0000 efffffff + cp.b 200000 effa0000 60000 + md effa0000 10 Finally, if you are running the alternate 64MB /CS0 settings and want to update the in-use u-boot image, then (again with CONFIG_SYS_ALT_BOOT -- 2.2.1