In mctl_mem_matches() we need to flush/invalidate cache, so that
we can be sure, we're actually reading back data from DRAM, and
not values cached in data cache.
This fixes unreliable detection of DRAM size on Orange Pi 3.
Signed-off-by: Ondrej Jirman <megous@megous.com>
The DRAM controller manual suggests to first program the PHY
initialisation parameters to the PHY_PIR register, and then set bit 0 to
trigger the initialisation. This is also used in boot0.
Follow this recommendation by setting bit 0 in a separate step.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Using memcpy() is, however tempting, not a good idea: It depends on the
specific implementation of memcpy, also lacks barriers. In this
particular case the first registers were written using 64-bit writes,
and the last register using four separate single-byte writes.
Replace the memcpy with a proper loop using the writel() accessor.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
This is useful for boot scripts to be able to decide whether to
boot or not and whether to notify the user of what is wrong.
Signed-off-by: Ondrej Jirman <megous@megous.com>
Device tree is slightly different from Linux kernel one, because of
different ABI for display timings between u-boot and Linux.
Signed-off-by: Ondrej Jirman <megous@megous.com>
- Enable LVDS pins (PD18-PD27)
- De-assert LVDS interface reset line
- Enable sunxi_lcd platform device for A83T
- Really disable all interrupts
- A83T does have only a simple clock gate for TCON0 clock
(no need to select source)
- Lifted some analog circuitry setup magic from the Linux driver
Signed-off-by: Ondrej Jirman <megous@megous.com>
A83T SoC has PLL_DE at pll9. Change the name to make it less
confusing when we'll add DE2 support for A83T.
Signed-off-by: Ondrej Jirman <megous@megous.com>
Shows a menu of items that can be controlled using touch panel.
This is useful for touch based devices like tablets to select
alternative boot options (multi-boot).
Signed-off-by: Ondrej Jirman <megous@megous.com>
We don't have DM support for PMIC/GPIO/regulators, so this needs
to be handled via config options and some custom board initialization
code for now.
Signed-off-by: Ondrej Jirman <megous@megous.com>
To enable LDO on GPIO0 and set it to required voltage define
CONFIG_AXP_GPIO_LDO0_VOLT=<mV> in your defconfig. Eg. <mV> can
be 3100 for 3.1V.
Signed-off-by: Ondrej Jirman <megous@megous.com>
To enable I2C0 on A83T add CONFIG_I2C0_ENABLE=y to defconfig and
enable appropriate node in device tree.
Signed-off-by: Ondrej Jirman <megous@megous.com>
Touchapnel devices are useful in u-boot for implementation of boot
menu user interfaces on tablets and other touch based devices.
This uclass implements start, stop and get_touches interface methods.
Signed-off-by: Ondrej Jirman <megous@megous.com>
Enabling DM_MMC is forcing CONFIG_BLK=y so if any board which uses
SCSI must need to enable DM_SCSI otherwise SCSI reads on that particular
target making invalid reading to the disk drive.
Allwinner platform do support SCSI on A10, A20 and R40 SoC's out of
these only A10 have DM_SCSI enabled. So enabling DM_MMC on A20, R40
would eventually end-up with scsi disk read failures like [1]
So, enable DM_MMC in all places of respective SoC's instead of enabling
them globally to Allwinner platform.
Now, DM_MMC is enabled in Allwinner SoC's except A20 and R40.
[1] https://lists.denx.de/pipermail/u-boot/2019-April/364057.html
Reported-by: Pablo Sebastián Greco <pgreco@centosproject.org>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
