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* serial: bcm283x_mu: Detect disabled serial deviceAlexander Graf2016-09-06-0/+3
| | | | | | | | | | | | | | | | | | | | 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>
* ARM: uniphier: change UNIPHIER_SERIAL to default y optionMasahiro Yamada2016-08-28-0/+1
| | | | | | | 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>
* Merge branch 'rmobile' of git://git.denx.de/u-boot-shTom Rini2016-08-20-4/+5
|\ | | | | | | | | [trini: Drop CMD_BOOTI as it's now on by default on ARM64] Signed-off-by: Tom Rini <trini@konsulko.com>
| * arm: rmobile: Add BLANCHE board supportmasakazu.mochizuki.wd@hitachi.com2016-08-17-5/+5
| | | | | | | | | | | | | | | | | | | | 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>
| * serial: sh: Add support R8A7795Hiroyuki Yokoyama2016-08-17-1/+2
| | | | | | | | | | | | | | 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>
* | Merge branch 'master' of git://www.denx.de/git/u-boot-imxTom Rini2016-07-28-1/+7
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| * | serial_mxc: Remove unconditional DCE settingBreno Lima2016-07-21-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 83fd908f28c ("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>
| * | dm: imx: serial: Support DTE mode when using driver modelStefan Agner2016-07-19-1/+8
| |/ | | | | | | | | | | | | | | | | | | 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>
* | ARM: uniphier: use (devm_)ioremap() instead of map_sysmem()Masahiro Yamada2016-07-24-11/+4
| | | | | | | | | | | | | | | | 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>
* | serial: zynq: Read information about clock from DTMichal Simek2016-07-22-1/+27
| | | | | | | | | | | | | | | | 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>
* | Merge branch 'master' of git://git.denx.de/u-boot-shTom Rini2016-07-21-0/+31
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| * | serial_sh: Add standrad SCI (w/o FIFO) supportYoshinori Sato2016-07-09-0/+3
| | | | | | | | | | | | | | | | | | | | | 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>
| * | serial_sh: Device Tree supportYoshinori Sato2016-07-09-0/+28
| |/ | | | | | | | | | | | | Add Device Tree bindings. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* | Merge git://git.denx.de/u-boot-dmTom Rini2016-07-15-2/+67
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| * | rockchip: serial: Add an of-platdata driver for rockchipSimon Glass2016-07-14-0/+55
| | | | | | | | | | | | | | | | | | | | | 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>
| * | dm: serial: ns16550: Update to support of-platdataSimon Glass2016-07-14-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | dm: serial: Add support for of-platdataSimon Glass2016-07-14-1/+7
| | | | | | | | | | | | | | | | | | | | | 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>
| * | sandbox: serial: Don't sync video in SPLSimon Glass2016-07-14-0/+2
| |/ | | | | | | | | | | | | 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>
* | stm32: clk: Add 200MHz clock configuration for stm32f746 discovery boardToshifumi NISHINAGA2016-07-14-1/+15
|/ | | | | | | | | 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>
* clk: convert API to match reset/mailbox styleStephen Warren2016-06-19-9/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* serial: Introduce linflex uart supportStoica Cosmin-Stefan2016-06-13-0/+224
| | | | | | | | | | | | | 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>
* serial: atmel_usart: Add device tree supportWenyou Yang2016-06-12-0/+19
| | | | | | | | 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>
* Merge http://git.denx.de/u-boot-samsungTom Rini2016-06-06-3/+16
|\ | | | | | | | | | | | | | | Signed-off-by: Tom Rini <trini@konsulko.com> Conflicts: configs/peach-pi_defconfig configs/peach-pit_defconfig
| * serial: s5p: use clock api to get clock rateThomas Abraham2016-05-25-1/+14
| | | | | | | | | | | | | | | | | | | | 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>
| * serial: s5p: get the port id number from the alias of the device nodeThomas Abraham2016-05-25-2/+2
| | | | | | | | | | | | | | | | | | | | 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>
* | serial: 16550: Drop OMAP1510 supportMarek Vasut2016-06-02-17/+3
| | | | | | | | | | | | | | | | | | | | 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>
* | serial: 16550: Make serial_io/out_shift available to debug modeMarek Vasut2016-06-02-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* | arm: add initial support for Amlogic Meson and ODROID-C2Beniamino Galvani2016-05-27-0/+178
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* | dm: ns16550: Don't map_physmem for I/O portsPaul Burton2016-05-26-2/+8
|/ | | | | | | | | | | 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>
* ar933x: serial: Remove the explicit pinctrl settingWills Wang2016-05-21-14/+2
| | | | | | | 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>
* drivers: serial: add serial driver for ar933x SOCWills Wang2016-05-21-0/+274
| | | | | | | | | 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>
* m68k: add DM model serial driverangelo@sysam.it2016-05-17-44/+144
| | | | | | | | 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>
* serial: bcm283x_mu: make pending values more explicitStephen Warren2016-04-18-2/+2
| | | | | | | | | | 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>
* arc: get rid of running_on_hwAlexey Brodkin2016-04-11-16/+0
| | | | | | | | 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>
* serial: Add support for Qualcomm serial portMateusz Kulikowski2016-04-01-0/+226
| | | | | | | | | 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>
* serial: uniphier: use devm_get_addr() to get base addressMasahiro Yamada2016-04-01-3/+5
| | | | | | | | | 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>
* serial: add BCM283x mini UART driverStephen Warren2016-03-27-0/+141
| | | | | | | | 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>
* ARM: uniphier: support Debug UARTMasahiro Yamada2016-03-24-0/+9
| | | | | | | | | | | | 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>
* serial: pl01x: Add support for devices with the rate pre-configured.Eric Anholt2016-03-22-2/+8
| | | | | | | | | | | | | 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>
* dm: ns16550: Add support for reg-offset propertyMichal Simek2016-03-17-2/+4
| | | | | | | | | | | | 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>
* x86: Allow use of serial soon after relocationSimon Glass2016-03-17-1/+1
| | | | | | | | | | | | | | | 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>
* dm: serial: Remove duplicated carriage return characterAlison Wang2016-03-14-9/+0
| | | | | | | | | 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>
* serial: Move carriage return before line feed for some serial driversAlison Wang2016-03-14-15/+16
| | | | | | | | | 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>
* dm: serial-uclass: Move a carriage return before a line feedAlison Wang2016-03-14-2/+3
| | | | | | | | 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>
* Revert "dm: ns16550: Add support for reg-offset property"Tom Rini2016-02-29-4/+2
| | | | | | | | | | | This reverts commit d9a3bec682f9756621615f4306718a356a3230e3. 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>
* serial: dcc: Move driver to DMMichal Simek2016-02-25-25/+49
| | | | | | | | | | | | | | | | | | | | | | 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>
* stm32x7: add support for stm32x7 serial driverVikas Manocha2016-02-24-0/+121
| | | | | | | 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>
* dm: ns16550: Add support for reg-offset propertyMichal Simek2016-02-22-2/+4
| | | | | | | | | | 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>
* serial: zynq: Change logic in putcMichal Simek2016-02-22-2/+2
| | | | | | | | | | | | | | | | 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>
* s3c24xx: serial: Remove dead codeDavid Müller (ELSOFT AG)2016-02-08-6/+0
| | | | Signed-off-by: David Müller <d.mueller@elsoft.ch>
generated by cgit v1.1 at 2024-07-05 16:51:21 +0000