From: tbultel at free.fr <tbultel@free.fr>
To: u-boot@lists.denx.de
Subject: [U-Boot] Running mx6qsabrelite at 1Gz with Freescale kernel rel_imx_3.0.35_4.1.0
Date: Tue, 18 Mar 2014 12:28:30 +0100 [thread overview]
Message-ID: <1395142110.53282ddeee751@imp.free.fr> (raw)
Hi,
I am working on a board (AMOS820 from Via) based on the mx6qsabrelite.
The BSP provided by the manufacturer is quite old.
I managed to port it from Freescale uboot-imx rel_imx_3.0.35_4.1.0 to u-boot
mainline, and basically the latest issue I have is the cpu frequency.
The kernel I use is the rel_imx_3.0.35_4.1.0 as well (same tag name)
With the old u-boot, it runs at 1Ghz because the BSP explicitly has a call to
clk_config(CONFIG_REF_CLK_FREQ, 1000, CPU_CLK);
With the new u-boot, it runs at default freq which is 800Mhz (at least, what I
guess from the Bogomips because no other log says it)
I have attempted to pass "arm_freq=1000" to the boot args but that does not
change anything.
My concern is that clk_config does not seem to be available anymore, there is
get_mcu_main_clk but no set routine.
I wonder if it is intentional, I could write a set routine but I wonder if it
could be accepted as a patch.
What it your advice about it ?
Regards
Thierry
next reply other threads:[~2014-03-18 11:28 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-18 11:28 tbultel at free.fr [this message]
2014-03-18 12:34 ` [U-Boot] Running mx6qsabrelite at 1Gz with Freescale kernel rel_imx_3.0.35_4.1.0 Stefano Babic
2014-03-21 18:47 ` Thierry Bultel
2014-03-21 22:50 ` Eric Nelson
2014-03-22 1:33 ` Marek Vasut
2014-03-22 15:13 ` Eric Nelson
2014-03-22 15:17 ` [U-Boot] [PATCH] ARM: mx6: Disable PCIe on SABRE Lite/Nitrogen6x Eric Nelson
2014-03-22 18:26 ` Marek Vasut
2014-03-22 20:50 ` Thierry Bultel
2014-03-22 21:49 ` Eric Nelson
2014-03-23 0:15 ` Marek Vasut
2014-03-23 0:11 ` Marek Vasut
2014-03-23 16:50 ` Stefano Babic
2014-03-23 16:48 ` Stefano Babic
2014-04-01 8:17 ` Stefano Babic
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