First set of u-boot-atmel features and fixes for 2019.10 cycle

This includes the Atmel QSPI driver and support for the at91 boards.
This is the port of the driver from Linux, mostly done by Tudor Ambarus.

The spi-nor flash resides on spi bus 1. Update the CONFIG_ENV_SPI_CS
and CONFIG_BOOTCOMMAND accordingly.

Based on original work by Wenyou Yang.
Signed-off-by: NEugen Hristev <eugen.hristev@microchip.com>
[tudor.ambarus@microchip.com: amend the commit message.]
Signed-off-by: NTudor Ambarus <tudor.ambarus@microchip.com>

Use the qspi memory layout defined in at91-sama5_common - it aligns
with the 8 Mbyte flash (sst26vf064b-104i/sn) available in sama5d27_som1_ek.
Signed-off-by: NTudor Ambarus <tudor.ambarus@microchip.com>

Add the default config file of QSPI media. The config is based on
sama5d27_som1_ek_mmc_defconfig.
Signed-off-by: NTudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: NJagan Teki <jagan@amarulasolutions.com>

Add the default config file of QSPI media. The config is based on
sama5d2_xplained_mmc_defconfig.
Signed-off-by: NTudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: NJagan Teki <jagan@amarulasolutions.com>

Use the same memory layout as we use for the NAND boot on the other boards.

QSPI flashes are present on the following boards:
sama5d2_xplained RevB:  32 Mbyte flash (mx25l3273fm2i-08g)
sama5d2_xplained RevC:   8 Mbyte flash (sst26vf064b-104i/sn)
sama5d27_som1_ek:        8 Mbyte flash (sst26vf064b-104i/sn)
sama5d2_ptc_ek:          8 Mbyte flash (sst26vf064b-104i/sn)

The 8 Mbyte limit is enough to cope with the memory layout used in the NAND
boot. rootfs exceeds the 8 Mbyte limit and will stay in eMMC in the
sama5d2_xplained case. The final scope is to use a single memory layout for
all boot medias.
Signed-off-by: NCyrille Pitchen <cyrille.pitchen@microchip.com>
[tudor.ambarus@microchip.com: change memory layout, add commit message]
Signed-off-by: NTudor Ambarus <tudor.ambarus@microchip.com>

Fix the following:
- use "jedec,spi-nor" binding, we use jedec compatible flashes
- set bus width to 4, we use quad capable flashes
- differentiate bewteen data and clk and cs pins
- drop partions as we don't use them in u-boot.
Signed-off-by: NCyrille Pitchen <cyrille.pitchen@microchip.com>
[tudor.ambarus@microchip.com: use "jedec,spi-nor", edit commit message]
Signed-off-by: NTudor Ambarus <tudor.ambarus@microchip.com>

We use a sst spi-nor flash memory on sama5d27_som1_ek. Select
the others for testing purposes.
Signed-off-by: NTudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: NJagan Teki <jagan@amarulasolutions.com>

We have a macronix spi-nor flash on sama5d2_xplained RevB and
a sst spi-nor flash on RevC. Select the rest for testing purposes.
Signed-off-by: NTudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: NJagan Teki <jagan@amarulasolutions.com>

Backport the driver from linux v5.1-rc5 and adapt it for u-boot.
Tested on sama5d2_xplained Rev B with mx25l25635e spi-nor flash.
Signed-off-by: NTudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: NJagan Teki <jagan@amarulasolutions.com>

Pull request for UEFI sub-system for v2019.10-rc1

Fix a possible overflow for GUID partition tables.

For some runtime services we only have implementations valid at boottime.
So we replace them when leaving boottime. Move this from
SetVirtualAddressMap() to ExitBootServices() as SetVirtualAddressMap() is
not called by all operating systems. Adjust the Python tests accordingly.

Bump the supported UEFI specification version to 2.8.

- fix khadas-vim README
- add support for unique generated MAC adresses from SoC serial,
  limited to Amlogic GXL/GXM boards for now

- Pull in the series to split fsl_esdhc for i.MX/non-i.MX cleanly

Signed-off-by: NTom Rini <trini@konsulko.com>

- mtmips: network stability fixes for gardena-smart-gateway

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: NStefan Roese <sr@denx.de>
Reviewed-by: NRyder Lee <ryder.lee@mediatek.com>
Signed-off-by: NWeijie 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: NRyder Lee <ryder.lee@mediatek.com>
Signed-off-by: NWeijie Gao <weijie.gao@mediatek.com>
Reviewed-by: NStefan Roese <sr@denx.de>
Tested-by: NFrank Wunderlich <frank-w@public-files.de>
Tested-by: NSuniel Mahesh <sunil.m@techveda.org>

Fix booting for wandboard

- fix pwm backlight

One of the SD-CARD slots on the Wandboard Quad B1 is MMC 2. Enable it as a
boot device.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: NFabio Estevam <festevam@gmail.com>

- DWC and i.MX6 fixes

set_pwm() will always fail with -ENOSYS if pwm_ops set_invert() is
not implemented, leaving the backlight dark. Fix this by returning
no error if set_invert() is not implemented and no polarity change
is requested.

Fixes: 57e77754 ("video: backlight: Parse PWM polarity cell")
Signed-off-by: NMarc Dietrich <marvin24@gmx.de>

Linux can be called with a command line parameter efi=novamap, cf.
commit 4e46c2a95621 ("efi/arm/arm64: Allow SetVirtualAddressMap() to be
omitted"). In this case SetVirtualAddressMap() is not called after
ExitBootServices().

OpenBSD 32bit does not call SetVirtualAddressMap() either.

Runtime services must be set to an implementation supported at runtime
in ExitBootServices().
Reported-by: NArd Biesheuvel <ard.biesheuvel@linaro.org>
Suggested-by: NAlexander Graf <agraf@csgraf.de>
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

We do not need any array typed detach list. Let's simply update the
pointers directly.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

Move the logic determining which board supports reset at runtime to Kconfig.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

As not all boards support resets at runtime do not test for it in the
Python tests.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

We are implementing UEFI variable RuntimeServicesSupported and set the
unimplemented runtime functions return EFI_UNSUPPORTED as described in UEFI
specification 2.8. So let's also advertise this specification version in
our system table.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: NAlexander Graf <agraf@csgraf.de>

The runtime services SetVirtualAddress() and ConvertPointer() become
unavailable after SetVirtualAddress(). Other runtime services become
unavailable after ExitBootServices.

Move the update of SetVirtualAddress() and ConvertPointer() to
efi_relocate_runtime_table().

Use functions with the correct signature when detaching.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

Provide a unit test for the variable services at runtime.

Currently we expect EFI_UNSUPPORTED to be returned as the runtime
implementation is still missing.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

Unimplemented runtime services should always return EFI_UNSUPPORTED as
described in the UEFI 2.8 spec.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

Our variable services are only provided at boottime. Therefore when
leaving boottime the variable function are replaced by dummy functions
returning EFI_UNSUPPORTED. Move this patching of the runtime table to the
variable services implementation. Executed it in ExitBootServices().
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

The detaching of the runtime will have to move to ExitBootServices() to
encompass operating system that do not call SetVirtualAddressMap().

This patch changes the logic for the relocation of the pointers in the
runtime table such that the relocation becomes independent of the entries
in the detach list.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

Some entries in the system table are set to NULL in ExitBootServices(). We
had them in the runtime detach list to avoid relocation of NULL. Let's
instead assign the pointers dynamically in efi_initialize_system_table() to
avoid the relocation entry.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

Provide an initialization routine for variable services.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

Let's keep similar things together.

Move efi_query_variable_info() to lib/efi_loader/efi_variable.c
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

Leave only a single space after * if not aligning.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

Correct the error message in test_efi_selftest_device_tree().
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

The current short description has a typo. Let it stand out clear that we
provide unit tests.

Improve the description of the CMD_BOOTEFI_SELFTEST configuration option.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: NAlexander Graf <agraf@csgraf.de>

In part_get_info_efi() we use the output of print_efiname() to set
info->name[]. The size of info->name is PART_NAME_LEN = 32 but
print_efiname() returns a string with a maximum length of
PARTNAME_SZ + 1 = 37.

Use snprintf() instead of sprintf() to avoid buffer overflow.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>