serial: ns16550: Set read/write functions depending on reg-io-width ...

Set proper register read/write functions depending on reg-io-width
device tree property.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: phycore-rk3288: Use UART2 as debug output ...

RK3288's UART2 is the default debug uart interface.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: start: Fix image size calculation ...

In barebox_non_pbl_start() we do not run at the address we are linked
at, so we must read linker variables using ld_var(). Since ld_var()
current is not available on arm64 we create two zero sized arrays,
one at the begin of the image and one at the end. The difference
between both is the image size we are looking for.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: start: Fix boarddata allocation ...

It's essential that we always pass the same size value to
arm_mem_barebox_image(), otherwise the result will be inconsistent.
Pass arm_barebox_size instead of barebox_image_size as the latter
does not contain the max bss segment size.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arm: am33xx: Initialize EMIF REG_PR_OLD_COUNT ...

This patch is based on a patch from the U-Boot and fixes two errors with
the LCDC. Original commit message from Jyri Sarha [1]:
"Initialize EMIF OCP_CONFIG registers REG_COS_COUNT_1, REG_COS_COUNT_2,
and REG_PR_OLD_COUNT field for Beaglebone-Black and am335x-evm. With
the default values LCDC suffers from DMA FIFO underflows and frame
synchronization lost errors. The initialization values are the highest
that work flawlessly when heavy memory load is generated by CPU. 32bpp
colors were used in the test. On BBB the video mode used 110MHz pixel
clock. The mode supported by the panel of am335x-evm uses 30MHz pixel
clock."

The register values are generated by testing, because there is no formula
to calculate them. Also from Jyri Sarha [1]:
"In practice the only rule to find an optimal value is to find as high as
possible REG_PR_OLD_COUNT value that does not produce LCDC FIFO
underflows under worst case scenario. The worst case happens when the
highest pixel clock videomode with maximum bpp is used while memory
subsystem is stressed by endless stream of writes hitting the same
memory memory bank (can be the same address)."

It only contains the BeagleBone Black and the Phytec SoM, because I
don't have other boards.

[1] https://patchwork.ozlabs.org/patch/704013/

Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arm: omap: OMAP_SERIALBOOT needs console support ...

It is quite useless without a console and breaks the build.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: Makefile: format fix ...

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>

scripts/omap4_usbboot: use libusb ...

Signed-off-by: Vicente Bergas <vicencb@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/vybrid'

Merge branch 'for-next/truncate'

Merge branch 'for-next/mvebu'

Merge branch 'for-next/misc'

Merge branch 'for-next/imx'

Merge branch 'for-next/i2c'

Merge branch 'for-next/dts'

gpio: Add GPIO driver for Vybrid ...

Add GPIO driver for VF610 Family of SoCs (based on analogous driver from
Linux kernel)

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: fec: Add support for Vybrid variant ...

Add support for Vybrid variant of this IP block

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: fec: Enable all clocks specified for FEC ...

For some i.MX variants more than just "ipg" clock need to be enabled for
Ethernet to function, so change the code to enable all of the clock
defined for FEC node (this is what analogous Linux driver does as well).

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: ocotp: Add Vybrid support ...

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: ocotp: Account for shadow memory gaps ...

Shadow memory does not have a true 1:1 mapping to fuse address
space. All i.MX6 devices, with exception of i.MX6SL have a 0x100 byte
gap between banks 5 and 6 (or addresses 0x2f and 0x30), so we need to
account for that when reading data from shadow memory.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: ocotp: Remove unused #define ...

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: Kconfig: Enable OCOTP on Vybrid ...

Enable OCOTP driver on Vybrid as well as i.MX6

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: esdhc: Request "per" clock explicitly ...

Calling clk_get() with NULL as the second argument will give us "ipg"
clock as a result. The actual clock feeding into the peripheral is "per"
and, depending on the SoC, "ipg" and "per" may be separated by a clock
divider, so querying "ipg"'s rate may not result in rate that does not
represent the actual peripheral clock rate.

Change the code to request "per" as our peripheral clock to avoid
aforementioned problem.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: esdhc: Do not rely on CPU type for quirks ...

CPU type is not a reliable indicator of the underlying type of IP core
used, since there's no 1:1 mapping between the two. As example of one
such violation consider Vybrid SoC which contains IP block from i.MX53.

Instead port feature flags from corresponding Linux kernel driver and
use the ones that are relevant.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: i2c: Add Vybrid support ...

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: i2c: Use read/write adapter functions ...

Use read/write adapter functions instead of directly calling to
readb/writeb. This is needed to prepare driver code to support Vybrid
SoC's variant of this block.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: Add 'lpuart' serial driver ...

Add 'lpuart' serial driver, based on analogous driver from U-Boot

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

vf610: Give enet_osc explicit "enet_ext" name ...

Give enet_osc explicit "enet_ext" name, since without it, Barebox
version of clk_set_parent fails when trying to re-parent "enet_sel".

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: Add VF610 clock tree initialization code ...

Based on analogous code from Linux kernel

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: clk: Port imx_clk_mux_flags from Linux ...

Port imx_clk_mux_flags from Linux, to simplify clock code porting.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>