aboutsummaryrefslogtreecommitdiff
path: root/drivers/serial
AgeCommit message (Collapse)Author
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>
2014-12-18x86: Rename coreboot-serial to x86-serialBin Meng
Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2014-12-11dm: serial_pl01x: Add missing private data sizeSimon Glass
The private data size is missing from the driver, so we store it at 0, which causes problems when something overwrites memory at 0. Fix this. Change-Id: I6f551ee905b0064ae8343e41e46450c37c8c8c1a Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Stephen Warren <swarren@wwwdotorg.org>
2014-12-08Merge branch 'master' of git://git.denx.de/u-boot-tiTom Rini
2014-12-08serial: pl01x: avoid pl01x type check two timesVikas Manocha
Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
2014-12-08serial: pl01x: disable as per type of pl01xVikas Manocha
pl010 & pl011 have different control register offsets, setting it as per the pl01x type. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
2014-12-08serial: pl01x: move all line control at same placeVikas Manocha
Receive line control uses same setting as transmit line control, also one lcrh write is effective for both baud rate & receive line control internal update. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
2014-12-08serial: pl01x: fix pl011 baud rate configurationVikas Manocha
UART_IBRD, UART_FBRD, and UART_LCR_H form a single 30-bit wide register which is updated on a single write strobe generated by a UART_LCR_H write. So, to internally update the content of UART_IBRD or UART_FBRD, a write to UART_LCR_H must always be performed at the end. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
2014-12-08serial: pl01x: pass pl01x_type to set baudrateVikas Manocha
Although we were checking the pl01x type, seems like PL010 type was being passed by mistake. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
2014-12-04ns16550.c: Fix for ns16550 driver hanging on OMAP4Gregoire Gentil
The same problem that is seen on some OMAP3 is also seen on some OMAP4 so include them in the test in order to prevent some hangs during SPL. [trini: Re-word commit message, make apply cleanly] Signed-off-by: Tom Rini <trini@ti.com>
2014-12-01Merge git://git.denx.de/u-boot-fdtTom Rini
2014-11-28serial: UniPhier: support OF configurationMasahiro Yamada
This commit implements the ofdata_to_platdata handler for the UniPhier serial driver and adds serial device nodes to the device tree sources. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-11-27fdt: remove fdtdec_get_alias_node() functionMasahiro Yamada
The fdt_path_offset() checks an alias too. fdtdec_get_alias_node(blob, "foo") is equivalent to fdt_path_offset(blob, "foo"). Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org>
2014-11-24Merge git://git.denx.de/u-boot-dmTom Rini
Conflicts: drivers/serial/serial-uclass.c Signed-off-by: Tom Rini <trini@ti.com>
2014-11-24Merge git://git.denx.de/u-boot-x86Tom Rini
Conflicts: arch/x86/cpu/Makefile Signed-off-by: Tom Rini <trini@ti.com>
2014-11-23linux/kernel.h: sync min, max, min3, max3 macros with LinuxMasahiro Yamada
U-Boot has never cared about the type when we get max/min of two values, but Linux Kernel does. This commit gets min, max, min3, max3 macros synced with the kernel introducing type checks. Many of references of those macros must be fixed to suppress warnings. We have two options: - Use min, max, min3, max3 only when the arguments have the same type (or add casts to the arguments) - Use min_t/max_t instead with the appropriate type for the first argument Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Pavel Machek <pavel@denx.de> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Tested-by: Lukasz Majewski <l.majewski@samsung.com> [trini: Fixup arch/blackfin/lib/string.c] Signed-off-by: Tom Rini <trini@ti.com>
2014-11-21dm: tegra: Add platform data for the SPL uartSimon Glass
Since we currently don't have device tree available in SPL, add platform data so the uart works. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-11-21dm: Allow stdio registration to be droppedSimon Glass
Provide a CONFIG_DM_STDIO option to enable registering a serial device with the stdio library. This is seldom useful in SPL, so disable it by default when building for SPL. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@ti.com>
2014-11-21dm: serial: Support changing the baud rateSimon Glass
Implement this feature in the uclass so that the baudrate can be changed with 'setenv baudrate <rate>'. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-11-21dm: at91: Add driver model support for the serial driverSimon Glass
Add driver model support while retaining the existing legacy code. This allows the driver to support boards that have converted to driver model as well as those that have not. Signed-off-by: Simon Glass <sjg@chromium.org>
2014-11-21dm: at91: Refactor serial driver slightly for driver modelSimon Glass
Before adding driver model support, split out a few of the functions so that they can be used by the driver model code. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Andreas Bießmann <andreas.devel@googlemail.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-14 23:47:58 +0000