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* mx6: add support of multi-processor commandGabriel Huau2014-08-201-0/+2
| | | | | | | | | 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>
* mx6: drop ARM errata 742230Shawn Guo2014-06-171-1/+0
| | | | | | | | | | | | | | | | | 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>
* MX6: Enable ARM errata workaround 794072 and 761320Nitin Garg2014-04-071-0/+2
| | | | | | | Since MX6 is Cortex-A9 r2p10, enable software workaround for errata 794072 and 761320. Signed-off-by: Nitin Garg <nitin.garg@freescale.com>
* mx6: Enable L2 cache supportFabio Estevam2014-02-111-0/+5
| | | | | | | | | | | 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>
* mx6: soc: Add the required LDO ramp up delayFabio Estevam2014-01-021-0/+1
| | | | | | | | | | 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>
* ARM: mx6: define CONFIG_ARM_ERRATA_742230Shawn Guo2013-04-171-0/+1
| | | | | | | | | | 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>
* ARM: mx6: use common CPU errata config optionsStephen Warren2013-03-071-0/+23
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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