Commit graph

710 commits

Author SHA1 Message Date
Icenowy Zheng
e8f86a0261 sunxi: fix the default value of CONS_INDEX on non-A23/A33 SUN8I
Only A23/A33 in SUN8I want a default value of CONS_INDEX of 5, for other
chips the default value is 1 like other Allwinner SoCs.

Fix this default value.

The original wrong value has lead to wrong console on H3 Orange Pi
boards.

Fixes: 7095f86418 ("sunxi: Convert CONS_INDEX to Kconfig")

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-25 11:44:21 +02:00
Mylène Josserand
7095f86418 sunxi: Convert CONS_INDEX to Kconfig
Convert the CONS_INDEX configuration to Kconfig.
Update sunxi's defconfigs to remove SYS_EXTRA_OPTIONS variable not
needed anymore.
Default value is 1 except for sun5i (equals 2) and sun8i (equals 5).

Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com>
[Maxime: Added a depends on ARCH_SUNXI to avoid build breakages]
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-20 13:20:32 +02:00
xypron.glpk@gmx.de
73be5b3fa7 usbtty: avoid potential NULL pointer dereference
If current_urb is NULL it should not be dereferenced.

The problem was indicated by cppcheck.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-04-18 10:29:23 -04:00
Tom Rini
b7b24a7a3c Merge git://git.denx.de/u-boot-dm
Here with some DM changes as well as the long-standing AT91 DM/DT
conversion patches which I have picked up via dm.
2017-04-13 17:31:06 -04:00
Alexandru Gagniuc
6f8c351e98 serial: ns16550: Link in the DM driver when when using platdata
Do not condition the compilation of the U_BOOT_DRIVER by !OF_PLATDATA.
This is inconsistent with the majority of other drivers. This also
blocks OF_PLATDATA boards with an 16550-compatible serial from using
serial in SPL.

Signed-off-by: Alexandru Gagniuc <alex.g@adaptrum.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Added tweak for rock to avoid a TPL build failure:
Signed-off-by: Simon Glass <sjg@chromium.org>
2017-04-13 11:43:23 -06:00
Alyssa Rosenzweig
b2aa889411 Fix a bug with PL010s running at 19200 baud
I don't have the hardware test this, but it is almost certainly a typo
in the code dating back to at least 2004.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
2017-04-13 09:41:08 -04:00
Andy Shevchenko
c5f8dd482b serial: Add serial driver for Intel MID
Add a specific serial driver for Intel MID platforms.

It has special fractional divider which can be programmed via UART_PS,
UART_MUL, and UART_DIV registers.

The UART clock is calculated as

	UART clock = XTAL * UART_MUL / UART_DIV

The baudrate is calculated as

	baud rate = UART clock / UART_PS / DLAB

Initialize fractional divider correctly for Intel Edison platform.

For backward compatibility we have to set initial DLAB value to 16
and speed to 115200 baud, where initial frequency is 29491200Hz, and
XTAL frequency is 38.4MHz.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2017-04-10 10:02:03 +08:00
Simon Glass
891f7ae633 dm: serial: Allow driver-model serial to be disabled for TPL
Add separate enable/disable controls for driver-model serial. While this
is generally enabled in SPL it may not be in TPL, since serial output can
be obtained with the debug UART with minimal code size.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-04-05 16:36:59 -04:00
Tom Rini
ea3310e8aa Blackfin: Remove
The architecture is currently unmaintained, remove.

Cc: Benjamin Matthews <mben12@gmail.com>
Cc: Chong Huang <chuang@ucrobotics.com>
Cc: Dimitar Penev <dpn@switchfin.org>
Cc: Haitao Zhang <hzhang@ucrobotics.com>
Cc: I-SYST Micromodule <support@i-syst.com>
Cc: M.Hasewinkel (MHA) <info@ssv-embedded.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Martin Strubel <strubel@section5.ch>
Cc: Peter Meerwald <devel@bct-electronic.com>
Cc: Sonic Zhang <sonic.adi@gmail.com>
Cc: Valentin Yakovenkov <yakovenkov@niistt.ru>
Cc: Wojtek Skulski <info@skutek.com>
Cc: Wojtek Skulski <skulski@pas.rochester.edu>
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-04-05 13:52:01 -04:00
Tom Rini
02ccab1908 Merge branch 'master' of git://www.denx.de/git/u-boot-imx
Signed-off-by: Tom Rini <trini@konsulko.com>

Conflicts:
	configs/bk4r1_defconfig
	configs/colibri_vf_defconfig
	configs/pcm052_defconfig
	include/configs/colibri_vf.h
	include/configs/pcm052.h
2017-03-19 15:13:38 -04:00
Philipp Tomsich
f40574e2d7 Kconfig: Migrate CONFIG_BAUDRATE
Move this in to Kconfig with a default of 115200.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[trini: Run moveconfig.py, reword commit slightly]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-03-19 14:48:37 -04:00
Sébastien Szymanski
3a5d63635d dm: imx: serial: add i.MX6UL support
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
2017-03-19 17:24:13 +01:00
Tom Rini
f9515756b6 Merge git://git.denx.de/u-boot-rockchip
This includes support for rk3188 from Heiko Stübner and and rk3328 from
Kever Yang.  Also included is SPL support for rk3399 and a fix for
rk3288 to get it booting again (spl_early_init()).
2017-03-17 14:15:17 -04:00
Vikas Manocha
fd03b83a99 stm32f7: serial: use clock driver to enable clock
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-03-17 14:15:13 -04:00
Vikas Manocha
42bf5e7c27 serial: stm32f7: add device tree support
This patch adds device tree support for stm32f7 serial driver & removes serial
platform data structure.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-03-17 14:15:12 -04:00
Peng Fan
7edf5c45f0 serial: lpuart: add i.MX7ULP support
Add i.MX7ULP support.
The buadrate calculation on i.MX7ULP is different,so add a new setbrg
function for i.MX7ULP.
Add a enum lpuart_devtype for runtime check for different platforms.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Cc: York Sun <york.sun@nxp.com>
Cc: Shaohui Xie <Shaohui.Xie@nxp.com>
Cc: Alison Wang <b18965@freescale.com>
2017-03-17 09:27:08 +01:00
Peng Fan
c40d612b1a serial: lpuart: restructure lpuart driver
Drop CONFIG_LPUART_32B_REG.
Move the register structure to a common file include/fsl_lpuart.h
Define lpuart_serial_platdata structure which includes the reg base and flags.
For 32Bit register access, use lpuart_read32/lpuart_write32 which handles
big/little endian.
For 8Bit register access, still use the orignal code.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by : Stefano Babic <sbabic@denx.de>
Cc: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Cc: York Sun <york.sun@nxp.com>
Cc: Shaohui Xie <Shaohui.Xie@nxp.com>
Cc: Alison Wang <b18965@freescale.com>
2017-03-17 09:27:08 +01:00
Heiko Stübner
cd76916fa3 rockchip: serial: Adapt rockchip of-platdata driver for rk3188
Add necessary structs to have the driver also work for the serial
on the rk3188.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
2017-03-16 16:03:44 -06:00
Tom Rini
b504ff9f6b Xilinx changes for v2017.05
- Move to DM clk driver
 - Add clk support for zynq_sdhci
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Merge tag 'xilinx-for-v2017.05' of git://www.denx.de/git/u-boot-microblaze

Xilinx changes for v2017.05

- Move to DM clk driver
- Add clk support for zynq_sdhci
2017-03-16 16:44:23 -04:00
Patrice Chotard
214a17e61d STiH410: Add STi serial driver
This patch adds support to ASC (asynchronous serial controller)
driver, which is basically a standard serial driver. This IP
is common across other STMicroelectronics SoCs

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-03-14 20:40:19 -04:00
Stefan Herbrechtsmeier
781745bd87 zynq: Move zynq to clock framework
Move the zynq to clock framework and remove unused functions as well as
the CONFIG_ZYNQ_PS_CLK_FREQ configuration.

Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2017-02-17 10:22:46 +01:00
Simon Glass
e160f7d430 dm: core: Replace of_offset with accessor
At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-02-08 06:12:14 -07:00
Heiko Schocher
17fa032671 serial, ns16550: bugfix: ns16550 fifo not enabled
commit: 65f83802b7 "serial: 16550: Add getfcr accessor"
breaks u-boot commandline working with long commands
sending to the board.

Since the above patch, you have to setup the fcr register.

For board/archs which enable OF_PLATDATA, the new field
fcr in struct ns16550_platdata is not filled with a
default value ...

This leads in not setting up the uarts fifo, which ends
in problems, when you send long commands to u-boots
commandline.

Detected this issue with automated tbot tests on am335x
based shc board.

The error does not popup, if you type commands. You need
to copy&paste a long command to u-boots commandshell
(or send a long command with tbot)

Possible boards/plattforms with problems:
./arch/arm/cpu/arm926ejs/lpc32xx/devices.c
./arch/arm/mach-tegra/board.c
./board/overo/overo.c
./board/quipos/cairo/cairo.c
./board/logicpd/omap3som/omap3logic.c
./board/logicpd/zoom1/zoom1.c
./board/timll/devkit8000/devkit8000.c
./board/lg/sniper/sniper.c
./board/ti/beagle/beagle.c
./drivers/serial/serial_rockchip.c

Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-01-20 09:15:19 -05:00
Tom Rini
7f73ca484f Kconfig: CONFIG_OF_PLATDATA doesn't really exist
There is no CONFIG_OF_PLATDATA, only CONFIG_SPL_OF_PLATDATA, so rename
the two references to CONFIG_OF_PLATDATA to CONFIG_SPL_OF_PLATDATA.

Signed-off-by: Tom Rini <trini@konsulko.com>
2017-01-14 12:20:23 -05:00
Marek Vasut
0b060eefd9 serial: 16550: Add Ingenic JZ4780 support
Add compatibility string for the Ingenic JZ4780 SoC, the necessary
UART enable bit into FCR and register shift. Neither are encoded
in the DTS coming from Linux, so we need to support it this way.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-12-19 12:26:37 -05:00
Marek Vasut
79fd928188 serial: 16550: Add port type as driver data
Add driver data to each compatible string to identify the type of
the port. Since all the ports in the driver are entirely compatible
with 16550 for now, all are marked with PORT_NS16550. But, there
are ports which have specific quirks, like the JZ4780 UART, which
do not have any DT property to denote the quirks. Instead, Linux
uses the compatible string to discern such ports and enable the
necessary quirks.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
2016-12-19 12:26:37 -05:00
Marek Vasut
65f83802b7 serial: 16550: Add getfcr accessor
Add function which allows fetching the default FCR register setting
from platform data for DM , while retaining old behavior for non-DM
by returning UART_FCRVAL.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-12-19 12:26:36 -05:00
Patrick Bruenn
98d62e618b arm: imx: add i.MX53 Beckhoff CX9020 Embedded PC
Add CX9020 board based on mx53loco.
Add simplified imx53 base device tree from kernel v4.8-rc8, to reuse
serial_mxc with DTE and prepare for device tree migration of other
functions and imx53 devices.

The CX9020 differs from i.MX53 Quick Start Board by:
- use uart2 instead of uart1
- DVI-D connector instead of VGA
- no audio
- CCAT FPGA connected to emi
- enable rtc

Signed-off-by: Patrick Bruenn <p.bruenn@beckhoff.com>
2016-12-16 12:57:12 +01:00
Simon Glass
ebb2c53585 serial: Drop the s3c24x0 serial driver
This is not used by any boards. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: David Müller <d.mueller@elsoft.ch>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2016-12-04 13:55:00 -05:00
Fabian Vogt
cb97ad47bf serial: bcm283x_mu: support disabling after initialization
For the Raspberry Pi 3 it needs to be possible to disable the serial
device after initialization happens, as only after the GPIO device is available
it is known whether the mini uart is usable.

Signed-off-by: Fabian Vogt <fvogt@suse.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-11-28 20:09:50 -05:00
Fabian Vogt
165316e38f serial: pl01x: expose skip_init platdata option in DT
To be able to represent the skip-init platdata element with OF_CONTROL,
it needs to be read from the device tree as well and put into the platform data.

Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Fabian Vogt <fvogt@suse.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-11-28 20:09:47 -05:00
Fabian Vogt
9f755f5d09 serial: bcm283x_mu: add device tree support
This patch adds device tree support for the bcm283x mini-uart driver.

Signed-off-by: Fabian Vogt <fvogt@suse.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-11-28 20:09:46 -05:00
Tom Rini
ed77ccd014 Merge git://git.denx.de/u-boot-fsl-qoriq
Signed-off-by: Tom Rini <trini@konsulko.com>

Conflicts:
	arch/arm/Kconfig
2016-11-25 17:39:54 -05:00
Marcel Ziswiler
cbfa67a16b serial: pxa: integrate optional driver model handling
Optional driver model handling integration.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2016-11-23 13:53:20 +01:00
Marcel Ziswiler
d804a5e1c3 serial: pxa: use kconfig for serial configuration
Migrate the PXA serial driver to be configured via Kconfig.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2016-11-23 13:53:20 +01:00
Shaohui Xie
9b46213b4f lpuart: add a get_lpuart_clk function
It's not always true that LPUART clock is CONFIG_SYS_CLK_FREQ. This
patch provides a weak function get_lpuart_clk(), so that the clock
can be ovreridden on a specific board which uses different clock
for LPUART.

Signed-off-by: Shaohui Xie <Shaohui.Xie@nxp.com>
[YS: Reformat commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
2016-11-21 09:20:32 -08:00
Tom Rini
1df182ddf7 Merge branch 'master' of git://git.denx.de/u-boot-atmel 2016-10-28 14:14:18 -04:00
Wenyou Yang
998cf3c2be serial: atmel_usart: Support enable an early debug UART
Add support to enable an early debug UART for debugging.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-10-28 18:37:15 +02:00
Wenyou Yang
6ec739aa52 serial: Kconfig: Add ATMEL_USART option
Add ATMEL_USART option to support to enable the Atmel usart driver
from Kconfig.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-10-28 18:37:15 +02:00
Tom Rini
4f892924d2 Merge branch 'master' of git://www.denx.de/git/u-boot-imx
Signed-off-by: Tom Rini <trini@konsulko.com>

Conflicts:
	common/Kconfig
	configs/dms-ba16_defconfig
2016-10-28 11:12:03 -04:00
Jagan Teki
8829e662ce serial: Kconfig: Add MXC_UART entry
Added kconfig for MXC_UART driver.

Cc: Simon Glass <sjg@chromium.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2016-10-26 16:53:16 +02:00
Simon Glass
869588decd Convert CONFIG_SYS_STDIO_DEREGISTER to Kconfig
This converts the following to Kconfig:
   CONFIG_SYS_STDIO_DEREGISTER

This option should never be enabled in SPL, so use
CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER) when checking the option.

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Re-sync]
Signed-off-by: Tom Rini <trini@konsulko.com>
2016-10-23 18:34:17 -04:00
Tom Rini
f5fd45ff64 Merge branch 'master' of git://www.denx.de/git/u-boot-imx 2016-10-08 09:33:37 -04:00
Masahiro Yamada
021abf696f Revert "ns16650: Make sure we have CONFIG_CLK set before using infrastructure"
This reverts commit 82f5279b0c.

The build failure of k2*evm boards was fixed in a different way by
the previous commit.  It is nasty to patch generic drivers around
with #ifdef CONFIG_CLK just for the KeyStone's matter.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-10-08 09:33:31 -04:00
Stefan Agner
a99546ab62 dm: imx: serial: support device tree
Support instatiation through device tree. Also parse the fsl,dte-mode
property to determine whether DTE mode shall be used.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-10-07 12:26:14 +02:00
Alexandre Courbot
ab895d6af2 serial: ns16550: Handle -ENOENT when requesting clock
When calling clk_get_by_index(), fall back to the legacy method of
getting the clock if -ENOENT is returned.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
2016-10-06 10:31:59 -04:00
Stefan Roese
6985d49662 serial: Add serial_mvebu_a3700 for Armada 3700 SoC
The Armada 3700's UART is a simple serial port. It has a 32 bytes
Tx FIFO and a 64 bytes Rx FIFO integrated. This patch adds support
for this UART including the DEBUG UART functions for very early
debug output.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Wilson Ding <dingwei@marvell.com>
Cc: Victor Gu <xigu@marvell.com>
Cc: Hua Jing <jinghua@marvell.com>
Cc: Terry Zhou <bjzhou@marvell.com>
Cc: Hanna Hawa <hannah@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
2016-09-27 17:29:52 +02:00
Masahiro Yamada
1221ce459d treewide: replace #include <asm/errno.h> with <linux/errno.h>
Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have
the same content.  (both just wrap <asm-generic/errno.h>)

Replace all include directives for <asm/errno.h> with <linux/errno.h>.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[trini: Fixup include/clk.]
Signed-off-by: Tom Rini <trini@konsulko.com>
2016-09-23 17:55:42 -04:00
Tom Rini
82f5279b0c ns16650: Make sure we have CONFIG_CLK set before using infrastructure
We cannot call on the CONFIG_CLK based clk_get_rate function unless
CONFIG_CLK is set.

Signed-off-by: Tom Rini <trini@konsulko.com>
2016-09-22 15:39:11 -04:00
Paul Burton
50fce1d5d8 serial: ns16550: Support clocks via phandle
Previously ns16550 compatible UARTs probed via device tree have needed
their device tree nodes to contain a clock-frequency property. An
alternative to this commonly used with Linux is to reference a clock via
a phandle. This patch allows U-Boot to support that, retrieving the
clock frequency by probing the appropriate clock device.

For example, a system might choose to provide the UART base clock as a
reference to a clock common to multiple devices:

  sys_clk: clock {
    compatible = "fixed-clock";
    #clock-cells = <0>;
    clock-frequency = <10000000>;
  };

  uart0: uart@10000000 {
    compatible = "ns16550a";
    reg = <0x10000000 0x1000>;
    clocks = <&sys_clk>;
  };

  uart1: uart@10000000 {
    compatible = "ns16550a";
    reg = <0x10001000 0x1000>;
    clocks = <&sys_clk>;
  };

This removes the need for the frequency information to be duplicated in
multiple nodes and allows the device tree to be more descriptive of the
system.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-09-21 15:04:32 +02:00
Alexander Graf
601147b06a serial: bcm283x_mu: Detect disabled serial device
On the raspberry pi, you can disable the serial port to gain dynamic frequency
scaling which can get handy at times.

However, in such a configuration the serial controller gets its rx queue filled
up with zero bytes which then happily get transmitted on to whoever calls
getc() today.

This patch adds detection logic for that case by checking whether the RX pin is
mapped to GPIO15 and disables the mini uart if it is not mapped properly.

That way we can leave the driver enabled in the tree and can determine during
runtime whether serial is usable or not, having a single binary that allows for
uart and non-uart operation.

Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-09-06 13:18:19 -04:00
Masahiro Yamada
85dc2fe119 ARM: uniphier: change UNIPHIER_SERIAL to default y option
This is very likely to be necessary for normal use cases.
Set its default to 'y' for shorter defconfig files.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-28 13:11:35 +09:00
Tom Rini
c98b171e10 Merge branch 'rmobile' of git://git.denx.de/u-boot-sh
[trini: Drop CMD_BOOTI as it's now on by default on ARM64]
Signed-off-by: Tom Rini <trini@konsulko.com>
2016-08-20 16:40:34 -04:00
masakazu.mochizuki.wd@hitachi.com
6f107e4cf6 arm: rmobile: Add BLANCHE board support
BLANCHE is development board based on R-Car V2H SoC (R8A7792)

This commit supports the following periherals:
- SCIF, Ethernet, QSPI, MMC

Signed-off-by: Masakazu Mochizuki <masakazu.mochizuki.wd@hitachi.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2016-08-17 10:25:35 +09:00
Hiroyuki Yokoyama
d6ee8ce51d serial: sh: Add support R8A7795
This can be used in the same way as other R-CAR serial setting.

Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2016-08-17 10:25:34 +09:00
Tom Rini
4711e7f7af Merge branch 'master' of git://www.denx.de/git/u-boot-imx 2016-07-28 08:45:00 -04:00
Masahiro Yamada
4e3d84066e ARM: uniphier: use (devm_)ioremap() instead of map_sysmem()
This does not have much impact on behavior, but makes code look more
more like Linux.  The use of devm_ioremap() often helps to delete
.remove callbacks entirely.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-07-24 00:13:10 +09:00
Michal Simek
59da82ef82 serial: zynq: Read information about clock from DT
Read information about clock frequency from DT.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com>
2016-07-22 14:04:40 +02:00
Tom Rini
45031f1a1e Merge branch 'master' of git://git.denx.de/u-boot-sh 2016-07-21 10:40:35 -04:00
Breno Lima
5d219d46aa serial_mxc: Remove unconditional DCE setting
Commit 83fd908f28 ("dm: imx: serial: Support DTE mode when using driver
model") breaks the serial output for the imx boards that do not use
the serial driver model.

The reason for the breakage is that it's setting UFCR_DCEDTE
unconditionally for the non-dm case.

So keep the original behavior by removing UFCR_DCEDTE setting in the
non-dm case.

Tested on mx7sabresd and mx6wandboard.

Signed-off-by: Breno Lima <breno.lima@nxp.com>
Acked-by: Stefan Agner <stefan.agner@toradex.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2016-07-21 10:43:52 +02:00
Stefan Agner
83fd908f28 dm: imx: serial: Support DTE mode when using driver model
The MXC UART IP can be run in DTE or DCE mode. This depends on the
board wiring and the pinmux used and hence is board specific. This
extends platform data with a new field to choose wheather DTE
mode shall be used.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-07-19 19:52:13 +02:00
Tom Rini
ebe621d5fb Merge git://git.denx.de/u-boot-dm 2016-07-15 08:06:22 -04:00
Simon Glass
2fc24d5335 rockchip: serial: Add an of-platdata driver for rockchip
Add a driver that works with of-platdata. It sets up the platform data and
calls the standard ns16550 driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-14 20:40:24 -06:00
Simon Glass
b2927fbaa8 dm: serial: ns16550: Update to support of-platdata
With of-platdata this driver cannot know the format of the of-platdata
struct, so we cannot use generic code for accessing the of-platdata. Each
SoC that uses this driver will need to set up ns16550's platdata for it.
So don't compile in the generic code.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-14 20:40:24 -06:00
Simon Glass
b484b0daef dm: serial: Add support for of-platdata
When this feature is enabled, we cannot access the device tree to find out
which serial device to use. Just use the first serial driver we find.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-14 20:40:24 -06:00
Simon Glass
0110f509c8 sandbox: serial: Don't sync video in SPL
SPL does not support an LCD display so there is no need to sync the video
when there is serial output.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-14 20:40:24 -06:00
Toshifumi NISHINAGA
ba0a3c16e0 stm32: clk: Add 200MHz clock configuration for stm32f746 discovery board
This patch adds 200MHz clock configuration for stm32f746 discovery board.
This patch is based on STM32F4 and emcraft's[1].

[1]:  https://github.com/EmcraftSystems/u-boot

Signed-off-by: Toshifumi NISHINAGA <tnishinaga.dev@gmail.com>
2016-07-14 18:22:41 -04:00
Yoshinori Sato
747431b9d5 serial_sh: Add standrad SCI (w/o FIFO) support
Add support for standard type SCI (without FIFO) port.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2016-07-09 05:51:57 +09:00
Yoshinori Sato
359787cfe4 serial_sh: Device Tree support
Add Device Tree bindings.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2016-07-09 05:51:57 +09:00
Stephen Warren
135aa95002 clk: convert API to match reset/mailbox style
The following changes are made to the clock API:
* The concept of "clocks" and "peripheral clocks" are unified; each clock
  provider now implements a single set of clocks. This provides a simpler
  conceptual interface to clients, and better aligns with device tree
  clock bindings.
* Clocks are now identified with a single "struct clk", rather than
  requiring clients to store the clock provider device and clock identity
  values separately. For simple clock consumers, this isolates clients
  from internal details of the clock API.
* clk.h is split so it only contains the client/consumer API, whereas
  clk-uclass.h contains the provider API. This aligns with the recently
  added reset and mailbox APIs.
* clk_ops .of_xlate(), .request(), and .free() are added so providers
  can customize these operations if needed. This also aligns with the
  recently added reset and mailbox APIs.
* clk_disable() is added.
* All users of the current clock APIs are updated.
* Sandbox clock tests are updated to exercise clock lookup via DT, and
  clock enable/disable.
* rkclk_get_clk() is removed and replaced with standard APIs.

Buildman shows no clock-related errors for any board for which buildman
can download a toolchain.

test/py passes for sandbox (which invokes the dm clk test amongst
others).

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-06-19 17:05:55 -06:00
Stoica Cosmin-Stefan
1f68dbc881 serial: Introduce linflex uart support
The Linflex module is integrated on some NXP automotive SoCs part of the former
Freescale portfolio, like S32V234, an SoC for Advanced Driver Assistance
Systems.

Original-signed-off-by: Stoica Cosmin-Stefan <cosminstefan.stoica@freescale.com>
Original-signed-off-by: Chircu Bogdan <Bogdan.Chircu@freescale.com>
Original-signed-off-by: Depons Eric <eric.depons@freescale.com>
Original-signed-off-by: Eddy Petrișor <eddy.petrisor@gmail.com>

Signed-off-by: Eddy Petrișor <eddy.petrisor@gmail.com>
2016-06-13 08:56:02 -04:00
Wenyou Yang
c1631c8a04 serial: atmel_usart: Add device tree support
Add device tree support.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-06-12 23:49:38 +02:00
Tom Rini
d77fa2ff76 Merge http://git.denx.de/u-boot-samsung
Signed-off-by: Tom Rini <trini@konsulko.com>

Conflicts:
	configs/peach-pi_defconfig
	configs/peach-pit_defconfig
2016-06-06 13:39:43 -04:00
Marek Vasut
03c6f1761e serial: 16550: Drop OMAP1510 support
The CONFIG_OMAP1510 is no longer defined, so remove this dead code.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Nishanth Menon <nm@ti.com>
2016-06-02 21:21:41 -04:00
Marek Vasut
fa4ce72316 serial: 16550: Make serial_io/out_shift available to debug mode
The ns16550 driver needs serial_in_shift() and serial_out_shift()
when compiled in debug UART mode, so shift the DM_SERIAL check a
little to make these functions available.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-06-02 21:21:41 -04:00
Beniamino Galvani
bfcef28ae4 arm: add initial support for Amlogic Meson and ODROID-C2
This adds platform code for the Amlogic Meson GXBaby (S905) SoC and a
board definition for ODROID-C2. This initial submission only supports
UART and Ethernet (through the existing Designware driver). DTS files
are the ones submitted to Linux arm-soc for 4.7 [1].

[1] https://patchwork.ozlabs.org/patch/603583/

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-27 15:39:47 -04:00
Paul Burton
df8ec55d52 dm: ns16550: Don't map_physmem for I/O ports
If the UART is to be accessed using I/O port accessors (inb & outb) then
using map_physmem doesn't make sense, since it operates in a different
memory space. Remove the call to map_physmem when
CONFIG_SYS_NS16550_PORT_MAPPED is defined, allowing I/O port addresses
to not be mangled by the incorrect mapping.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2016-05-26 01:34:13 +02:00
Thomas Abraham
cf75cdf96e serial: s5p: use clock api to get clock rate
On Exynos platforms that support clock driver API, allow the driver to
use clock api get the SCLK clock rate.

Cc: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2016-05-25 10:00:19 +09:00
Thomas Abraham
5ab6c4df27 serial: s5p: get the port id number from the alias of the device node
The port id, if not specified in the device node, can be obtained from
the alias of the device node listed in the aliases node.

Cc: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2016-05-25 10:00:19 +09:00
Wills Wang
773f3b2538 ar933x: serial: Remove the explicit pinctrl setting
The correct pinctrl is handled automatically so we don't need to do it in
the driver.

Signed-off-by: Wills Wang <wills.wang@live.com>
2016-05-21 01:36:38 +02:00
Wills Wang
60b49761e9 drivers: serial: add serial driver for ar933x SOC
This patch add support for ar933x serial.

Signed-off-by: Wills Wang <wills.wang@live.com>
Reviewed-by: Thomas Chou <thomas@wytron.com.tw>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-21 01:25:50 +02:00
angelo@sysam.it
e27802af54 m68k: add DM model serial driver
Boards can now use DM serial driver, or still legacy mcf uart
driver version.

Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Acked-by: Simon Glass <sjg@chromium.org>
2016-05-17 09:54:43 -06:00
Stephen Warren
e3a46e3ee2 serial: bcm283x_mu: make pending values more explicit
dm_serial_ops.pending should return the number of characters, not just a
valid C Boolean integer value. The existing code does already does this,
but only as an accident since BCM283X_MU_LSR_RX_READY happens to be
BIT(0). Enhance the code to be more explicit about the values it returns.

Suggested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
2016-04-18 17:11:47 -04:00
Alexey Brodkin
8b15010b1f arc: get rid of running_on_hw
ISS is obsolete now and nSIM is used for simulation instead.
In its turn nSIM properly handles baud-rate settings so get rid
of now useless check.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2016-04-11 10:20:30 -07:00
Mateusz Kulikowski
142a20c367 serial: Add support for Qualcomm serial port
This driver works in "new" Data Mover UART mode, so
will be compatible with modern Qualcomm chips only.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
2016-04-01 17:18:07 -04:00
Masahiro Yamada
b37a1ccea2 serial: uniphier: use devm_get_addr() to get base address
Currently, fdtdec_get_addr_size() does not support the address
translation, so it cannot handle device trees with non-straight
"ranges" properties.  (This would be a problem with DTS for UniPhier
ARMv8 SoCs.)

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-04-01 00:17:07 +09:00
Stephen Warren
3917c26909 serial: add BCM283x mini UART driver
The RPi3 typically uses the regular UART for high-speed communication with
the Bluetooth device, leaving us the mini UART to use for the serial
console. Add support for this UART so we can use it.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
2016-03-27 09:12:52 -04:00
Masahiro Yamada
d5cf32977f ARM: uniphier: support Debug UART
For ARM32 architecture, CONFIG_DEBUG_LL is available for early
low-level debugging (and actually UniPhier 32bit SoCs use it), but
ARM64 architecture does not support it.  Instead, CONFIG_DEBUG_UART
is available as an architecture-independent debug facility.

This commit supports it on all the UniPhier SoCs (including the new
ARMv8 SoCs), which is very useful for new SoC bringups.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-03-24 01:45:41 +09:00
Eric Anholt
cd0fa5bff8 serial: pl01x: Add support for devices with the rate pre-configured.
For Raspberry Pi, we had the input clock rate to the pl011 fixed in
the rpi.c file, but it may be changed by firmware due to user changes
to config.txt.  Since the firmware always sets up the uart (default
115200 output unless the user changes it), we can just skip our own
uart init to simplify the boot process and more reliably get serial
output.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Tom Rini <trini@konsulko.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
2016-03-22 12:16:12 -04:00
Michal Simek
59b35ddd26 dm: ns16550: Add support for reg-offset property
reg-offset is the part of standard 8250 binding in the kernel.
It is shifting start of address space by reg-offset.
On Xilinx platform this offset is typically 0x1000.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Moved the new field to the end of the struct to avoid problems:
Signed-off-by: Simon Glass <sjg@chromium.org>
2016-03-17 21:27:39 -06:00
Simon Glass
e4d6ab0c2c x86: Allow use of serial soon after relocation
At present on x86 machines with use cache-as-RAM, the memory goes away just
before board_init_r() is called. This means that serial drivers are
no-longer unavailable, until initr_dm() it called, etc.

Any attempt to use printf() within this period will cause a hang.

To fix this, mark the serial devices as 'unavailable' when it is no-longer
available. Bring it back when serial_initialize() is called. This means that
the debug UART will be used instead for this period.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-03-17 10:27:24 +08:00
Alison Wang
ab761ce9f9 dm: serial: Remove duplicated carriage return character
As the handling for carriage return and line feed is done in the common
DM driver serial-uclass.c, such handling in some serial DM drivers is
duplicated and need to be removed.

Signed-off-by: Alison Wang <alison.wang@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-03-14 15:34:50 -06:00
Alison Wang
055457ef25 serial: Move carriage return before line feed for some serial drivers
In general, a carriage return needs to execute before a line feed.
The patch is to change some serial drivers based on this rule, such
as serial_mxc.c, serial_pxa.c, serial_s3c24x0.c and usbtty.c.

Signed-off-by: Alison Wang <alison.wang@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-03-14 15:34:50 -06:00
Alison Wang
c5917b4b05 dm: serial-uclass: Move a carriage return before a line feed
In general, a carriage return needs to execute before a line feed. The
patch is to change serial DM driver serial-uclass.c based on this rule.

Signed-off-by: Alison Wang <alison.wang@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-03-14 15:34:50 -06:00
Tom Rini
e5e88c6596 Revert "dm: ns16550: Add support for reg-offset property"
This reverts commit d9a3bec682.

While this is a correct change to do long term it unfortunately breaks a
number of platforms that are using pdata and not named struct members so
they are getting all of their data after 'base' incorrect.

Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2016-02-29 10:26:20 -05:00
Michal Simek
966bfa7347 serial: dcc: Move driver to DM
Enabling this driver requires some DT changes.
Adding DCC to root or main bus:
dcc: dcc {
	compatible = "arm,dcc";
	u-boot,dm-pre-reloc;
};

Extend alias list to link DCC:
	serial0 = &uart0;
	serial1 = &uart1;
	serial2 = &dcc;

Change stdout-path to point to dcc port.
	stdout-path = "serial2:115200n8";

Also add support for debug uart to help with early debug.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-25 19:06:37 -05:00
Vikas Manocha
6a12cebd90 stm32x7: add support for stm32x7 serial driver
This patch adds support for stm32f7 family usart peripheral.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-24 18:43:54 -05:00
Michal Simek
d9a3bec682 dm: ns16550: Add support for reg-offset property
reg-offset is the part of standard 8250 binding in the kernel.
It is shifting start of address space by reg-offset.
On Xilinx platform this offset is typically 0x1000.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-02-22 16:21:10 +01:00
Michal Simek
6cd0f2a6cd serial: zynq: Change logic in putc
Sync logic with Linux kernel where TX empty flag is checked before char
is sent.
This logic is fixing problem with console on zynqmp platform.

For example:
DRAM:  2 GiB
Enabling Caches...
EL Level:	��   sdhci@ff170000: 0
Using default environment

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com>
2016-02-22 16:21:04 +01:00
David Müller (ELSOFT AG)
470250e8e6 s3c24xx: serial: Remove dead code
Signed-off-by: David Müller <d.mueller@elsoft.ch>
2016-02-08 10:24:18 -05:00