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Set the CONFIG_MXC_GPT_HCLK configuration in mx6_common.h, so that
24Mhz OSC clock source will be selected for GPT on all MX6 platforms.
Signed-off-by: Ye.Li <B37916@freescale.com>
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This allows u-boot to load different OS or Bare Metal application on
different cores of the i.MX6 SoC.
For example: running Android on cpu0 and a RT OS like QNX/FreeRTOS on cpu1.
Signed-off-by: Gabriel Huau <contact@huau-gabriel.fr>
Acked-by: Stefano Babic <sbabic@denx.de>
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Commit e9fd66defd7e (ARM: mx6: define CONFIG_ARM_ERRATA_742230) enables
errata 742230 for imx6, because it helps remove one reboot issue.
However, this errata does not really apply on imx6, because Cortex-A9
on imx6 is r2p10 while the errata only applies to revisions r1p0..r2p2.
At a later time, commit f71cbfe3ca5d (ARM: Add workaround for Cortex-A9
errata 794072) adds support of errata 794072, which applies to all
Cortex-A9 revisions. As the workaround for both errata are exactly
same, it makes a lot more sense to select 794072 instead of 742230 for
imx6. Since we already enable 794072 for imx6, it's time to drop
errata 742230 to avoid confusion.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Acked-by: Nitin Garg <nitin.garg@freescale.com>
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Since MX6 is Cortex-A9 r2p10, enable software workaround
for errata 794072 and 761320.
Signed-off-by: Nitin Garg <nitin.garg@freescale.com>
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Add L2 cache support and enable it by default.
Configure the L2 cache in the same way as done by FSL kernel:
http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/tree/arch/arm/mach-mx6/mm.c?h=imx_3.0.35_4.1.0
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Dirk Behme <dirk.behme@gmail.com>
Acked-by: Stefano Babic <sbabic@denx.de>
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When changing LDO voltages we need to wait for the required amount of time
for the voltage to settle.
Also, as the timer is still not available when arch_cpu_init() is called, we
need to call it later at board_postclk_init() phase.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
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The ARM errata 742230 - "ARM errata: DMB operation may be faulty" is
claimed for Cortex-A9 (r1p0..r2p2). Though i.MX6 uses a newer revision
than r2p2, we are seeing a reboot failure on i.MX6 SMP build that can be
fixed by applying the workaround for this errata. So for safety, let's
define CONFIG_ARM_ERRATA_742230 to enable the workaround on i.MX6.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Now that U-Boot has common CONFIG_ options to work around some ARM CPU
errata, enable the relevant options on MX6, and remove the custom
lowlevel_init.S, since it's just duplicated code now.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Jason Liu <r64343@freescale.com>
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