summaryrefslogtreecommitdiff
path: root/drivers/serial
AgeCommit message (Collapse)Author
2015-07-07arm: dcc: Add uart dcc support for armv8Siva Durga Prasad Paladugu
Added UART DCC support for armv8 Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2015-06-10sandbox: Move CONFIG_SANDBOX_SERIAL to KconfigSimon Glass
Move this over to Kconfig and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-06-10dm: serial: Don't support CONFIG_CONS_INDEX with device treeSimon Glass
This feature should be deprecated for new boards, and significantly adds to SPL code size. Drop it. Instead, we can use stdout-path in the /chosen node. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-06-10dm: ns16550: Support CONFIG_SYS_NS16550_MEM32 with driver modelSimon Glass
This option is used by some boards, so support it with driver model. This is really ugly - we should rewrite this driver once all users are moved to driver model. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-05-31ARM: UniPhier: update the vendor name of UniPhier in KconfigMasahiro Yamada
The business for UniPhier Soc family has been transferred from Panasonic Corporation to Socionext Inc. Update the SoC select menu in Kconfig. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-05-31ARM: UniPhier: replace <asm/io.h> with <linux/io.h>Masahiro Yamada
In the Linux coding style, it is recommended to include <linux/io.h> rather than <asm/io.h>. Follow this trend. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-05-27Revert "Revert "stm32f4: fix serial output""Tom Rini
Due to a misunderstanding, in 698a12b we reverted changes that we in fact wanted to keep. So lets fix that mistake and bring the code back to how it should have been. This reverts commit 698a12bef9e782dcd99c555a739c16eec8669f14. Signed-off-by: Tom Rini <trini@konsulko.com>
2015-05-10Revert "stm32f4: fix serial output"Tom Rini
As per the author, we don't need this patch really since the other patch "stm32f4: fix serial output" superseded it. This reverts commit 85e5f5b7a7f8d889271f94791606cde62d81d53f. Signed-off-by: Tom Rini <trini@konsulko.com>
2015-05-10serial: fdt: add device tree support for pl01xVikas Manocha
This patch adds device tree support for arm pl010/pl011 driver. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-05-10stm32f4: add serial print portkunhuahuang
Add the stm32F4 board's serial ports support. User can use it easily. The user only need to edit the number of the usart. The patch also fix the serial print out. Last, this version of patch fix the first patch checkpatch.pl error. Thanks to Kamil Lulko. Signed-off-by: kunhuahuang <huangkunhua@gmail.com>
2015-05-10stm32f4: fix serial outputkunhuahuang
This patch fix the serial output. The source is from Kamil Lulko's "stm32f429-discovery board support" Thanks, Varcain. I learned a lot. Signed-off-by: kunhuahuang <huangkunhua@gmail.com>
2015-05-05Merge branch 'u-boot/master' into 'u-boot-arm/master'Albert ARIBAUD
2015-04-29Merge branch 'zynq' of git://www.denx.de/git/u-boot-microblazeTom Rini
2015-04-29serial: zynq: Add support for slow emulation platformMichal Simek
On slow platforms not all baudrate setting is valid. Check it directly in the driver and setup maximum possible frequency. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-04-28serial: ns16550: Remove hard-coded baud_divisor settingAxel Lin
This was accidentally added by commit dd0b0122bacc "serial: ns16550: Add an option to specify the debug UART register shift". Remove it. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-04-23Merge branch 'master' of git://git.denx.de/u-boot-dmTom Rini
2015-04-23dm: Add a panic_str() function to reduce code sizeSimon Glass
The printf() in panic() adds about 1.5KB of code size to SPL when compiled with Thumb-2. Provide a smaller version that does not support printf()-style arguments and use it in two commonly compiled places. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-22serial: ns16550: Remove unnecessary init on UART setupSimon Glass
It is not necessary to write a zero baud rate to the device, and for some chips this will cause problems. Drop this code. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-22dm: ns16550: Support non-byte register spacing with driver modelSimon Glass
Allow this driver to support boards where the register shift is not 0. This fixes some compiler warnings which appear in that case. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-22serial: ns16550: Add an option to specify the debug UART register shiftSimon Glass
This UART permits different register spacing. To support the debug UART on devices which have a spacing other than 1 byte, allow the shift value to be specified. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-22stm32f4: Add serial driverrev13@wp.pl
Signed-off-by: Kamil Lulko <rev13@wp.pl> Reviewed-by: Tom Rini <trini@konsulko.com>
2015-04-21serial: pl01x: fix PL010 regressionLinus Walleij
commit aed2fbef5e9a0ab5a7cd01e742039a962f0b24ef "dm: serial: Tidy up the pl01x driver" caused a regression on (real hardware) PL010 by omitting to update the line control register when switching baudrate. Fix this by inlining the missing write to the baud control register. Also renaming the set_line_control() function to pl011_set_line_control() since this function is clearly PL011-specific, and it won't suffice to call that to set up line control. Tested on the Integrator/AP hardware. Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-18common: Make sure arch-specific map_sysmem() is definedJoe Hershberger
In the case where the arch defines a custom map_sysmem(), make sure that including just mapmem.h is sufficient to have these functions as they are when the arch does not override it. Also split the non-arch specific functions out of common.h Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-04-16dm: core: Add dev_get_uclass_priv() to access uclass private dataSimon Glass
Add a convenience function to access the private data that a uclass stores for each of its devices. Convert over most existing uses for consistency and to provide an example for others. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-16fix ARM DCC support for ARMv7 based cores (e.g. CortexA)Alexander Merkle
Signed-off-by: Alexander Merkle <alexander.merkle@lauterbach.com>
2015-04-03serial-arc: switch to DMAlexey Brodkin
Now when all infrastructure in ARC is ready for it let's switch ARC UART to driver model. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Simon Glass <sjg@chromium.org>
2015-04-03serial/serial_arc: set registers address during compilationAlexey Brodkin
Being global variable with 0 value it falls into .bss area which we may only use after relocation to RAM. And right afetr relocation we zero .bss - effectively cleaing register address set for early console. Now with pre-set value "regs" variable is no longer in .bss and this way safely survives relocation. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2015-03-25dm: serial: remove bogus include <ns16550.h>Masahiro Yamada
Serial-uclass should be generically implemented without depending a particular hardware. Fortunately, nothing in include/ns16550.h is referenced from drivers/serial/serial-uclass.c, so remove this bogus include. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Tom Rini <trini@konsulko.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-03-15ARM: UniPhier: adjust device trees for business transferMasahiro Yamada
Panasonic's System LSI products, UniPhier SoC family, have been transferred to Socionext Inc. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-03-02serial: ns16550: Fix build error due to a typoAxel Lin
Fix trivial typo. Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Axel Lin <axel.lin@ingics.com>
2015-03-01Merge branch 'master' of git://git.denx.de/u-boot-uniphierTom Rini
2015-03-01Merge branch 'master' of git://git.denx.de/u-boot-shTom Rini
2015-03-01serial: UniPhier: move LCR register setting to probe functionMasahiro Yamada
We do not have to set the LCR register every time we change the baud-rate. We just need to set it up once in the probe function. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-03-01serial: UniPhier: use 32 bit register accessMasahiro Yamada
For PH1-Pro4, the 8 bit write access to LCR register (offset = 0x11) is not working correctly. As a side effect, it also modifies MCR register (offset = 0x10) and results in unexpected behavior. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-02-25serial: sh: fix internal clock source on SCIFVladimir Barinov
The formula to calculate SCIF BRR for R-Car H2/M2/E2 SoCs is as follows: BRR = pclk / (64 * 2^(2n-1) * baudrate) - 1, the prescaler is 0 due to SCSMR settings, hence n=0 Also SCSCR must be set to use internal or external clock source. Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2015-02-25serial: sh: Remove invalid UTF-8 characterNobuhiro Iwamatsu
serial_sh.c contains invalid UTF-8 character. This deletes the character. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2015-02-24ARM: remove cm4008 and cm41xx board supportMasahiro Yamada
These are still non-generic boards. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Greg Ungerer <greg.ungerer@opengear.com> Acked-by: Marek Vasut <marex@denx.de>
2015-02-19serial: ns16550: Support debug UARTSimon Glass
Add debug UART functions to permit ns16550 to provide an early debug UART. Try to avoid using the stack so that this can be called from assembler before a stack is set up (at least on ARM and PowerPC). Signed-off-by: Simon Glass <sjg@chromium.org>
2015-02-19serial: ns16550: Add access functions that don't need platdataSimon Glass
For the debug UART we need to be able to provide any parameters before driver model is set up. Add parameters to the low-level access functions to make this possible. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-02-19serial: Support an early UART for debuggingSimon Glass
This came up in a discussion on the mailing list here: https://patchwork.ozlabs.org/patch/384613/ My concerns at the time were: - it doesn't need to be written in assembler - it doesn't need to be ARM-specific This patch provides a possible alternative. It works by allowing any serial driver to export one init function and provide a putc() function. These can be used to output debug data before the real serial driver is available. This implementation does not depend on driver model, and it is possible for it to operate without a stack on some architectures (e.g. PowerPC, ARM). It provides the same features as the ARM-specific debug.S but with more UART and architecture support. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-02-12dm: Add support for all targets which requires MANUAL_RELOCMichal Simek
Targets with CONFIG_NEEDS_MANUAL_RELOC do not use REL/RELA relocation (mostly only GOT) where functions aray are not updated. This patch is fixing function pointers for DM core and serial-uclass to ensure that relocated functions are called. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-02-12dm: sh: serial: Add support driver modelNobuhiro Iwamatsu
This adds driver model support with this driver. This was tested by Koelsch board and Gose board. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-02-12dm: Expand and complete Kconfig in drivers/Simon Glass
Expand the help messages for each driver. Add missing Kconfig for I2C, SPI flash and thermal. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-02-12powerpc: Add serial driver for driver modelSimon Glass
This uses the ns16550 driver but sets up the clock at run-time. It does not seem to be available in the device tree. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-01-29dm: core: Add a flag to control sequence numberingSimon Glass
At present we try to use the 'reg' property and device tree aliases to give devices a sequence number. The 'reg' property is often actually a memory address, so the sequence numbers thus-obtained are not useful. It would be better if the devices were just sequentially numbered in that case. In fact neither I2C nor SPI use this feature, so drop it. Some devices need us to look up an alias to number them within the uclass. Add a flag to control this, so it is not done unless it is needed. Adjust the tests to test this new behaviour. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-01-26Merge branch 'zynq' of git://www.denx.de/git/u-boot-microblazeTom Rini
2015-01-26serial: Extend structure comments with register offsetMichal Simek
This information help with debugging issues with uart. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-26serial: zynq: Use global baudrate instead of hardcoded oneMichal Simek
This change enables to change baudrate on command line. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-13x86: Use ePAPR defined properties for x86-uartBin Meng
Use ePAPR defined properties for x86-uart: clock-frequency and current-speed. Assign the value of clock-frequency in device tree to plat->clock of x86-uart instead of using hardcoded number. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-01-13serial: ns16550: Support ns16550 compatible pci uart devicesBin Meng
There are many pci uart devices which are ns16550 compatible. We can describe them in the board dts file and use it as the U-Boot serial console as specified in the chosen node 'stdout-path' property. Those pci uart devices can have their register be memory-mapped, or i/o-mapped. The driver will try to use the memory-mapped register if the reg property in the node has an entry to describe the memory-mapped register, otherwise i/o-mapped register will be used. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>