Check for bmode before reading the boot device
to check if a serial downloader is started,
and returns UART if the serial downloader is set,
letting SPL to wait for an image if
CONFIG_SPL_YMODEM_SUPPORT is set.

This allows to load again a SPL based board
with imx_usb_loader together with a tool
such as kermit.
Signed-off-by: NStefano Babic <sbabic@denx.de>
CC: Tim Harvey <tharvey@gateworks.com>
CC: Fabio Estevam <Fabio.Estevam@freescale.com>
CC: Eric Nelson <eric.nelson@boundarydevices.com>
Reviewed-by: NEric Nelson <eric@nelint.com>
Tested-by: NEric Nelson <eric@nelint.com>

For some board designs, it might be useful to switch the DC-DC
clock source to something else rather the default 24 MHz, e.g.
for EMI reasons.

For this, override the mxs_power_setup_dcdc_clocksource function
in your board support files.

Example:
void mxs_power_setup_dcdc_clocksource(void)
{
    mxs_power_switch_dcdc_clocksource(POWER_MISC_FREQSEL_20MHZ);
}
Signed-off-by: NMichael Heimpold <mhei@heimpold.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: NMarek Vasut <marex@denx.de>

Use the macro SETUP_IOMUX_PAD(...) rather than imx_iomux_v3_setup_multiple_pads(...) in order to setup
the pin configuration for ECSPI1.

ARRAY_SIZE(pads) provides the wrong size for imx_iomux_v3_setup_multiple_pads(pads, ARRAY_SIZE(pads)) in
case of MX6QDL. In the particular case, the content of GPR12 is overwritten and the IPG/AHB/ATB/ATP clocks
are deactivated. Therefore, the connection to the system via JTAG is not possible anymore. Furthermore,
kernel version 3.0.35 hangs during bootprocess in the function etm_init().
Signed-off-by: NMichael Schanz <michael.schanz@congatec.com>
Acked-by: NOtavio Salvador <otavio@ossystems.com.br>

If fecmxc_initialize_multi() fails, it frees but does not unregister
the mdio bus, causing subsequent uses of the "mii" command to crash.
Fix this by adding mdio_unregister() calls where needed.
Signed-off-by: NMans Rullgard <mans@mansr.com>
Reviewed-by: NEric Nelson <eric@nelint.com>

If the host clock frequency is higher than 100 MHz, the MDIO hold
time needs to be increased from its current setting of one cycle in
order to meet the specified minium of 10 ns.  Writing an appropriate
value to the HOLDTIME field of the MII_SPEED register achieves this.

Comment copied from Linux kernel.
Signed-off-by: NMans Rullgard <mans@mansr.com>
Reviewed-by: NEric Nelson <eric@nelint.com>

This patch writes the default values for TXTL and RXTL to UARTx_UFCR.
Without this patch some older kernel versions crash as UARTx_UFCR was
not always correctly initialized.
Signed-off-by: NMaximilian Schwerin <maximilian.schwerin@tigris.de>

The low four bits of the SYSCTL register are reserved on the USDHC
controller on i.MX6 and i.MX7 processors, but are used for clocking
operations on earlier models.

Guard against their usage by hiding the bit mask macros on those
processors.

These bits are used to prevent glitches when changing clocks on
i.MX35 et al. Use the RSTA bit instead for i.MX6 and i.MX7.

>From the i.MX6DQ RM:
	To prevent possible glitch on the card clock, clear the
	FRC_SDCLK_ON bit when changing clock divisor value(SDCLKFS
	or DVS in System Control Register) or setting RSTA bit.
Signed-off-by: NEric Nelson <eric@nelint.com>
Reviewed-by: NFabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: NStefano Babic <sbabic@denx.de>
Reviewed-by: NHector Palacios <hector.palacios@digi.com>

Drop duplicated debug info for tcl.
Signed-off-by: NPeng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>

Switch Novena to distro bootcmd, so it can be used with debian easily.
Signed-off-by: NVagrant Cascadian <vagrant@aikidev.net>
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Sean Cross <xobs@kosagi.com>
Cc: Stefano Babic <sbabic@denx.de>
Tested-by: NVagrant Cascadian <vagrant@aikidev.net>

Should use parenthese to wrap the macro definition, otherwise
we will encounter error like the following:

"
if (base_addr != LCDIF1_BASE_ADDR) {
    puts("Wrong LCD interface!\n");
    return -EINVAL;
}
"

Without this patch, we will always encounter "Wrong LCD interface".
Signed-off-by: NPeng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: NStefano Babic <sbabic@denx.de>

cc: Peng Fan <Peng.Fan@freescale.com>
Signed-off-by: NJeroen Hofstee <jeroen@myspectrum.nl>
Reviewed-by: NPeng Fan <Peng.Fan@freescale.com>
Reviewed-by: NStefano Babic <sbabic@denx.de>

This commit "677f970b" introduce a new
macro "CONFIG_FSL_CLK" that get_clocks() should not be limited by ESDHC.

But that patch missed to enable it for i.MX7. THis patch enables
CONFIG_FSL_CLK to let get_clocks work.
Signed-off-by: NPeng Fan <Peng.Fan@freescale.com>
Cc: Adrian Alonso <aalonso@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>

Since commit 59370f3f ("net: phy: delay only if reset handler is
registered") Ethernet is no longer functional.

This commit does not have an issue in itself, but it revelead a problem
with the Ethernet initialization.

Fix this by calling enable_fec_anatop_clock() earlier and also
by adding a 10ms reset delay as recommended in the AR8031 datasheet.
Suggested-by: NJörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: NStefano Babic <sbabic@denx.de>

After the conversion to SPL the defconfig was renamed, so adjust it.
Signed-off-by: NOtavio Salvador <otavio@ossystems.com.br>

Simple patch to enable support for extfs filesystem in SPL,
this is useful to those who want to avoid vfat like plague.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>

The following patch changed the PFUZE100 swbst register bit definitions
and broke PMIC configuration on multiple boards, at least on the novena
and gw_ventana. This patch fixes it.

commit 8fa46350
Author: Peng Fan <Peng.Fan@freescale.com>
Date:   Fri Aug 7 16:43:45 2015 +0800

    power: regulator: add pfuze100 support
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Peng Fan <Peng.Fan@freescale.com>
Cc: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Vagrant Cascadian <vagrant@aikidev.net>
Reviewed-by: NPrzemyslaw Marczak <p.marczak@samsung.com>
Tested-by: NVagrant Cascadian <vagrant@aikidev.net>
Reviewed-by: NPeng Fan <Peng.Fan@freescale.com>
Acked-by: NTim Harvey <tharvey@gateworks.com>

At the moment, the desired brownout is at 1.0V. However,
this setting cannot be realized by hardware since we have
only 3 bits to represent the voltage difference from the
target value.

Target value is 1500 mV, brownout target is 1000 mV,
voltage steps are 25 mV.

Register content calculation:
  (1500 [mV] - 1000 [mV]) / 25 [mV] = 20 (decimal) = 0x14

  Register takes only 3 bits, that is 0x4.

But 0x4 * 25 [mV] = 100 [mV], that means that actual
brownout level is 1500 [mV] - 100 [mV] = 1.4 V.

Minimum possible BO level is
  1500 [mV] - 0x7 * 25 [mV] = 1315 [mV].

So lets use this value as desired BO value (which is
also the same as FSL bootlets use).
Signed-off-by: NMichael Heimpold <mhei@heimpold.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: NMarek Vasut <marex@denx.de>

On mx6sx, the CCM register bits for GPMI are different as other
mx6 platforms. Modify the GPMI clock function to support mx6sx.
Signed-off-by: NYe.Li <B37916@freescale.com>

Simplify if/else code, since if channel equals to MEM_BG_SYNC or
MEM_FG_SYNC, we have value 5 for 'dc_chan'.
Signed-off-by: NPeng Fan <Peng.Fan@freescale.com>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: NStefano Babic <sbabic@denx.de>

Add board_usb_phy_mode function for detecting whether a port is
being used as host or client using a GPIO. On Colibri Vybrid we
provide GPIO 102 for this very same purpose.
Signed-off-by: NSanchayan Maity <maitysanchayan@gmail.com>

Add MMC and SPI DFU support.
Signed-off-by: NOtavio Salvador <otavio@ossystems.com.br>
Reviewed-by: NFabio Estevam <fabio.estevam@freescale.com>

We should also take MX6D option in consideration when defining
imx_iomux_v3_setup_pad().
Signed-off-by: NOtavio Salvador <otavio@ossystems.com.br>
Reviewed-by: NFabio Estevam <fabio.estevam@freescale.com>

Congatec has several MX6 boards based on quad, dual, dual-lite and solo.

Add SPL support so that all the variants can be supported
Signed-off-by: NOtavio Salvador <otavio@ossystems.com.br>
Reviewed-by: NFabio Estevam <fabio.estevam@freescale.com>

Tested basic fastboot commands, such as:

On the U-boot prompt:

=> fastboot 0

On the host PC:

$ fastboot getvar bootloader-version -i 0x0525
bootloader-version: U-Boot 2015.10-rc2-09654-g8f41d27
finished. total time: 0.000s

$ fastboot reboot -i 0x0525 --> board reboots fine.
Signed-off-by: NOtavio Salvador <otavio@ossystems.com.br>
Reviewed-by: NFabio Estevam <fabio.estevam@freescale.com>

Congatec boards boot from SPI NOR, so it makes more sense to use
SPI NOR to store the environment variables.
Signed-off-by: NOtavio Salvador <otavio@ossystems.com.br>
Reviewed-by: NFabio Estevam <fabio.estevam@freescale.com>

Add SPI NOR support:

=> sf probe
SF: Detected SST25VF032B with page size 256 Bytes, erase size 4 KiB, total 4 MiB
Signed-off-by: NOtavio Salvador <otavio@ossystems.com.br>
Reviewed-by: NFabio Estevam <fabio.estevam@freescale.com>

Using 50 MiB malloc pool in SPL is nonsense. Since the caches are not
enabled in SPL, it takes 2 seconds to init the pool and has no obvious
benefit. Reduce the size to 1 MiB.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tim Harvey <tharvey@gateworks.com>
Tested-by: NStefano Babic <sbabic@denx.de>
Acked-by: NTim Harvey <tharvey@gateworks.com>

Add a README with a brief guide to porting serial drivers over to use
driver model.

Add a timeline also. All serial drivers should be converted by the end
of January 2016.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Add a test that verifies that USB keyboards work correctly on sandbox.
This verifies some additional parts of the USB stack.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Enable the USB keyboard on sandbox, now that we have a suitable emulation
driver.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Add a simple USB keyboard driver for sandbox. It provides a function to
'load' it with input data, which it will then stream through to the normal
U-Boot input subsystem. When the input data is exhausted, the keyboard stops
providing data.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Allow USB device emulation to support interrupt URBs so that we can use USB
keyboards with sandbox.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Replace the open-coded values with constants to make it clearer what they
mean.
Signed-off-by: NSimon Glass <sjg@chromium.org>

This was missed in the conversion to driver model.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Add tests that 'usb tree' produces the right output when a device changes
order on the bus.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Add tests that this command produces the right output, even when a rescan
results in a device disappearing from the bus.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Each scan of the USB bus may return different results. Existing driver-model
devices are reused when found, but if a device no longer exists it will stay
around, de-activated, but bound.

Detect these devices and remove them after the scan completes.
Signed-off-by: NSimon Glass <sjg@chromium.org>

This function should not be used with driver model. While there are users
of USB Ethernet that use driver model for USB but not Ethernet, we have
to keep it around. Add a comment to that effect.
Signed-off-by: NSimon Glass <sjg@chromium.org>

This reverts commit bb52b367.
Signed-off-by: NSimon Glass <sjg@chromium.org>

This reverts commit 6cda3695.

We want to avoid having the USB stack rely on unbind.
Signed-off-by: NSimon Glass <sjg@chromium.org>