summaryrefslogtreecommitdiff
path: root/drivers/serial
Commit message (Collapse)AuthorAgeLines
* serial-arc: switch to DMAlexey Brodkin2015-04-03-32/+70
| | | | | | | | 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>
* serial/serial_arc: set registers address during compilationAlexey Brodkin2015-04-03-2/+1
| | | | | | | | | | 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>
* dm: serial: remove bogus include <ns16550.h>Masahiro Yamada2015-03-25-2/+0
| | | | | | | | | | | 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>
* ARM: UniPhier: adjust device trees for business transferMasahiro Yamada2015-03-15-3/+4
| | | | | | | Panasonic's System LSI products, UniPhier SoC family, have been transferred to Socionext Inc. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* serial: ns16550: Fix build error due to a typoAxel Lin2015-03-02-1/+1
| | | | | | | Fix trivial typo. Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Axel Lin <axel.lin@ingics.com>
* Merge branch 'master' of git://git.denx.de/u-boot-uniphierTom Rini2015-03-01-32/+32
|\
| * serial: UniPhier: move LCR register setting to probe functionMasahiro Yamada2015-03-01-9/+11
| | | | | | | | | | | | | | 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>
| * serial: UniPhier: use 32 bit register accessMasahiro Yamada2015-03-01-28/+26
| | | | | | | | | | | | | | | | 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>
* | Merge branch 'master' of git://git.denx.de/u-boot-shTom Rini2015-03-01-3/+4
|\ \ | |/ |/|
| * serial: sh: fix internal clock source on SCIFVladimir Barinov2015-02-25-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | 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>
| * serial: sh: Remove invalid UTF-8 characterNobuhiro Iwamatsu2015-02-25-1/+1
| | | | | | | | | | | | | | | | 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>
* | ARM: remove cm4008 and cm41xx board supportMasahiro Yamada2015-02-24-124/+0
|/ | | | | | | | 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>
* serial: ns16550: Support debug UARTSimon Glass2015-02-19-2/+61
| | | | | | | | 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>
* serial: ns16550: Add access functions that don't need platdataSimon Glass2015-02-19-18/+30
| | | | | | | | 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>
* serial: Support an early UART for debuggingSimon Glass2015-02-19-0/+46
| | | | | | | | | | | | | | | | | | | | | 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>
* dm: Add support for all targets which requires MANUAL_RELOCMichal Simek2015-02-12-0/+16
| | | | | | | | | | 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>
* dm: sh: serial: Add support driver modelNobuhiro Iwamatsu2015-02-12-113/+238
| | | | | | | | 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>
* dm: Expand and complete Kconfig in drivers/Simon Glass2015-02-12-2/+4
| | | | | | | | 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>
* powerpc: Add serial driver for driver modelSimon Glass2015-02-12-0/+41
| | | | | | | 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>
* dm: core: Add a flag to control sequence numberingSimon Glass2015-01-29-0/+1
| | | | | | | | | | | | | | | | 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>
* Merge branch 'zynq' of git://www.denx.de/git/u-boot-microblazeTom Rini2015-01-26-23/+7
|\
| * serial: Extend structure comments with register offsetMichal Simek2015-01-26-6/+6
| | | | | | | | | | | | This information help with debugging issues with uart. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
| * serial: zynq: Use global baudrate instead of hardcoded oneMichal Simek2015-01-26-17/+1
| | | | | | | | | | | | This change enables to change baudrate on command line. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | x86: Use ePAPR defined properties for x86-uartBin Meng2015-01-13-1/+7
| | | | | | | | | | | | | | | | | | 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>
* | serial: ns16550: Support ns16550 compatible pci uart devicesBin Meng2015-01-13-0/+31
|/ | | | | | | | | | | | | | 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>
* x86: Rename coreboot-serial to x86-serialBin Meng2014-12-18-7/+7
| | | | | Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: serial_pl01x: Add missing private data sizeSimon Glass2014-12-11-0/+1
| | | | | | | | | | | 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>
* Merge branch 'master' of git://git.denx.de/u-boot-tiTom Rini2014-12-08-4/+5
|\
| * ns16550.c: Fix for ns16550 driver hanging on OMAP4Gregoire Gentil2014-12-04-4/+5
| | | | | | | | | | | | | | | | 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>
* | serial: pl01x: avoid pl01x type check two timesVikas Manocha2014-12-08-9/+6
| | | | | | | | | | Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
* | serial: pl01x: disable as per type of pl01xVikas Manocha2014-12-08-3/+4
| | | | | | | | | | | | | | | | 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>
* | serial: pl01x: move all line control at same placeVikas Manocha2014-12-08-23/+21
| | | | | | | | | | | | | | | | 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>
* | serial: pl01x: fix pl011 baud rate configurationVikas Manocha2014-12-08-0/+8
| | | | | | | | | | | | | | | | | | | | 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>
* | serial: pl01x: pass pl01x_type to set baudrateVikas Manocha2014-12-08-1/+1
|/ | | | | | | | 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>
* Merge git://git.denx.de/u-boot-fdtTom Rini2014-12-01-1/+1
|\
| * fdt: remove fdtdec_get_alias_node() functionMasahiro Yamada2014-11-27-1/+1
| | | | | | | | | | | | | | | | | | | | 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>
* | serial: UniPhier: support OF configurationMasahiro Yamada2014-11-28-8/+11
|/ | | | | | | 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>
* Merge git://git.denx.de/u-boot-dmTom Rini2014-11-24-12/+197
|\ | | | | | | | | | | | | Conflicts: drivers/serial/serial-uclass.c Signed-off-by: Tom Rini <trini@ti.com>
| * dm: tegra: Add platform data for the SPL uartSimon Glass2014-11-21-0/+16
| | | | | | | | | | | | | | 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>
| * dm: Allow stdio registration to be droppedSimon Glass2014-11-21-3/+7
| | | | | | | | | | | | | | | | | | 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>
| * dm: serial: Support changing the baud rateSimon Glass2014-11-21-0/+67
| | | | | | | | | | | | | | 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>
| * dm: at91: Add driver model support for the serial driverSimon Glass2014-11-21-0/+84
| | | | | | | | | | | | | | | | 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>
| * dm: at91: Refactor serial driver slightly for driver modelSimon Glass2014-11-21-9/+23
| | | | | | | | | | | | | | | | 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>
* | Merge git://git.denx.de/u-boot-x86Tom Rini2014-11-24-16/+19
|\ \ | | | | | | | | | | | | | | | | | | Conflicts: arch/x86/cpu/Makefile Signed-off-by: Tom Rini <trini@ti.com>
| * | dm: serial: Move current serial port pointer to global_dataSimon Glass2014-11-21-16/+19
| |/ | | | | | | | | | | | | | | | | | | | | In general we can't store things in the data section until we have inited SDRAM. Some platforms allow this (e.g. those with SPL) but some don't. Move the pointer to global_data so that it will work on all platforms. Without this fix the serial port will not work prior to relocation with driver model on some platforms. Signed-off-by: Simon Glass <sjg@chromium.org>
* | linux/kernel.h: sync min, max, min3, max3 macros with LinuxMasahiro Yamada2014-11-23-1/+1
|/ | | | | | | | | | | | | | | | | | | | 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>
* Merge branch 'master' of git://git.denx.de/u-boot-shTom Rini2014-11-17-1/+1
|\
| * sh: move CONFIG_{SH2, SH2A, SH3, SH4} to KconfigMasahiro Yamada2014-11-13-1/+1
| | | | | | | | | | | | | | | | | | | | | | This commit moves CONFIG_SH2, CONFIG_SH2A, CONFIG_SH3, CONFIG_SH4 to Kconfig renaming into CONFIG_CPU_SH2, CONFIG_CPU_SH2A, CONFIG_CPU_SH3, CONFIG_CPU_SH4, respectively because arch/sh/Kconfig of Linux uses CONFIG_CPU_SH* convention. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* | serial: UniPhier: borrow macros from linux/serial_reg.hMasahiro Yamada2014-11-12-13/+2
|/ | | | | | | | | The same bit-field macros are defined in include/linux/serial_reg.h so let's include it and delete duplicated defines. Also, remove unnecessary inclusion of <common.h>. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Merge git://www.denx.de/git/u-boot-sunxiTom Rini2014-11-05-0/+40
|\
generated by cgit v1.1 at 2024-11-05 18:55:32 +0000