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>
The watchdog of mediatek chips is enabled by bootrom before u-boot is
running. Previously we choose to enable the wdt driver only to disable the
watchdog hardware.
Now wdt service is enabled by default. The function arch_misc_init which is
only used to disable wdt is no longer needed.
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
The initr_watchdog is currently placed before initr_serial. The
initr_watchdog calls printf and printf finally calls ops->putc of a serial
driver.
However, gd->cur_serial_dev points to a udevice allocated in board_f. The
gd->cur_serial_dev->driver->ops->putc points the the code region before
relocation.
Some serial drivers call WATCHDOG_RESET() in ops->putc. When DM is enabled
for watchdog, watchdog_reset() is called. watchdog_reset() calls get_timer
to get current timer.
On some platforms the timer driver is also a DM driver. initr_watchdog is
placed right after initr_dm, which means the timer driver hasn't been
initialized. So dm_timer_init() is called. To create a new udevice, calloc
is called.
However start from ops->putc, u-boot execution flow is redirected into the
memory region before relocation (board_f). In board_f, dlmalloc hasn't
been initialized. The call to calloc will fail, and this will cause DM to
print out an error message, and it will call printf again, causing
recursive error outputs.
This patch places initr_watchdog after initr_serial to solve this issue.
Cc: Stefan Roese <sr@denx.de>
Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Tested-by: Suniel Mahesh <sunil.m@techveda.org>
