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* dm: ns16550: Allow the driver to be omitted if requestedSimon Glass2016-01-12-0/+2
| | | | | | | Allow the ns16550 debug UART to be used without the full driver. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Thomas Chou <thomas@wytron.com.tw>
* dm: serial: Allow the UART driver to be dropped from the imageSimon Glass2016-01-12-1/+23
| | | | | | | | | | | In very very space-constrained devices even the full UART driver is too large. In this case the debug UART can still be used in some cases. Add options to enable the UART driver in SPL and U-Boot proper. Enable both options by default. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Thomas Chou <thomas@wytron.com.tw>
* dm: serial: Convert ns16550 driver to use driver model PCI APISimon Glass2016-01-12-3/+2
| | | | | | | | | | | | | | | | | Use the driver model version of the function to find the BAR. This updates the fdtdec function, of which ns16550 is the only user. The fdtdec_get_pci_bdf() function is dropped for several reasons: - with driver model we should use 'struct udevice *' rather than passing the device tree offset explicitly - there are no other users in the tree - the function parses for information which is already available in the PCI device structure (specifically struct pci_child_platdata which is available at dev_get_parent_platdata(dev) Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
* serial: zynq: Use static inline for _debug_uart_init()Michal Simek2016-01-08-1/+1
| | | | | | | | | | | | Mark _debug_uart_init() as static to avoid sparse warning and inline it to debug_uart_init(). Reported-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* Merge branch 'master' of git://www.denx.de/git/u-boot-imxTom Rini2016-01-03-1/+8
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| * serial_mxc: Fix setup of UARTx_UFCR registerMaximilian Schwerin2016-01-03-1/+8
| | | | | | | | | | | | | | | | This patch writes the default values for TXTL and RXTL to UARTx_UFCR. Without this patch some older kernel versions crash as UARTx_UFCR was not always correctly initialized. Signed-off-by: Maximilian Schwerin <maximilian.schwerin@tigris.de>
* | stm32: Convert serial driver to DMKamil Lulko2015-12-12-107/+96
| | | | | | | | | | | | Signed-off-by: Kamil Lulko <kamil.lulko@gmail.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
* | dm: serial: Minor coding style cleanup of some commentsStefan Roese2015-12-10-10/+10
| | | | | | | | | | | | | | | | | | Fix incorrect comment alignments. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* | serial: zynq: Remove duplicated headerMichal Simek2015-12-07-3/+0
| | | | | | | | | | | | | | | | debug_uart.h is included twice. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* | serial: zynq: Fix incorrect reference to s5p driverMichal Simek2015-12-07-2/+2
| | | | | | | | | | | | | | | | Remove this c&p error from s5p driver. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* | dm: serial: ns16550: Add pre-reloc flag to the driverSimon Glass2015-12-05-0/+1
| | | | | | | | | | | | | | | | | | | | | | For platforms that don't use device tree in SPL the only way to mark this driver as 'required by relocation' is with the DM_FLAG_PRE_RELOC flag. Add this to ensure that the driver is bound. Fixes: fde7e18938d8 ("dm: tegra: pci: Move CONFIG_PCI_TEGRA to Kconfig") Signed-off-by: Simon Glass <sjg@chromium.org> Reported-by: Stephen Warren <swarren@nvidia.com> Acked-by: Thomas Chou <thomas@wytron.com.tw>
* | ns16550: change reg-shift property default to zeroThomas Chou2015-12-05-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Change reg-shift property default to zero. When the integer property is missing, it should be taken as zero. This is consistent to Linux drivers/tty/serial/of_serial.c. The x86 and most powerpc use reg-shift of 0. Most others use reg-shift of 2. While reg-shift of 1 is rarely used. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com> Acked-by: Simon Glass <sjg@chromium.org>
* | Fix typo: firstly -> first.Vagrant Cascadian2015-12-05-1/+1
| | | | | | | | | | Signed-off-by: Vagrant Cascadian <vagrant@debian.org> Acked-by: Marek Vasut <marex@denx.de>
* | rockchip: serial driver support rk3036huang lin2015-12-01-0/+1
| | | | | | | | | | Signed-off-by: Lin Huang <hl@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org>
* | ns16550: move CONFIG_SYS_NS16550 to KconfigThomas Chou2015-11-21-0/+10
| | | | | | | | | | | | Move CONFIG_SYS_NS16550 to Kconfig, and run moveconfig.py. Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
* | ns16550: zap CONFIG_NS16550_SERIALThomas Chou2015-11-21-16/+0
| | | | | | | | | | | | | | | | | | Zap CONFIG_NS16550_SERIAL, as the unification of ns16550 drivers is completed. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* | ns16550: unify serial_omapThomas Chou2015-11-21-55/+0
| | | | | | | | | | | | | | | | Unify serial_omap, and use the generic binding. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Tom Rini <trini@konsulko.com> Acked-by: Simon Glass <sjg@chromium.org>
* | ns16550: unify serial_tegraThomas Chou2015-11-21-55/+0
| | | | | | | | | | | | | | | | Unify serial_tegra, and use the generic binding. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Tom Rini <trini@konsulko.com> Acked-by: Simon Glass <sjg@chromium.org>
* | ns16550: unify serial_dwThomas Chou2015-11-21-40/+0
| | | | | | | | | | | | | | | | Unify serial_dw, and use the generic binding. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Tom Rini <trini@konsulko.com> Acked-by: Simon Glass <sjg@chromium.org>
* | ns16550: unify serial_keystoneThomas Chou2015-11-21-49/+0
| | | | | | | | | | | | | | | | Unify serial_keystone, and use the generic binding. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Tom Rini <trini@konsulko.com> Acked-by: Simon Glass <sjg@chromium.org>
* | ns16550: unify serial_rockchipThomas Chou2015-11-21-54/+1
| | | | | | | | | | | | | | | | | | Unify serial_rockchip, and use the generic binding. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Tom Rini <trini@konsulko.com> Tested-by: Ariel D'Alessandro <ariel@vanguardiasur.com.ar> Acked-by: Simon Glass <sjg@chromium.org>
* | ns16550: unify serial_ppcThomas Chou2015-11-21-42/+1
| | | | | | | | | | | | | | | | | | Unify serial_ppc, and use the generic binding. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Tom Rini <trini@konsulko.com> [trini: Add TODO comment] Signed-off-by: Tom Rini <trini@konsulko.com>
* | ns16550: unify serial_x86Thomas Chou2015-11-20-55/+1
| | | | | | | | | | | | | | | | | | Unify serial_x86, and use the generic binding. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* | ns16550: add generic binding to unify the driversThomas Chou2015-11-20-0/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add generic binding to unify ns16550 drivers. There are several drivers using almost the same code, such as serial_dw, serial_keystone, serial_omap, serial_ppc, serial_rockchip, serial_tegra.c, and serial_x86. But each is platform specific. The key difference between these drivers is the way to get input clock frequency. With this unified approach, fixed clock frequency should be extracted from "clock-frequency" property of device tree blob. If this property is not available, the macro CONFIG_SYS_NS16550_CLK will be used. It can be a constant or a function to get clock, eg, get_serial_clock(). Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de> Acked-by: Simon Glass <sjg@chromium.org>
* | ns16550: change map_sysmem to map_physmemThomas Chou2015-11-20-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Change map_sysmem() to map_physmem(,,MAP_NOCACHE). Though map_sysmem() can be used to map system memory, it might be wrong to use it for I/O ports. The map_physmem() serves the same purpose to translate physical address to virtual address with the additional flag to take care of cache property. Most drivers use map_physmem() since I/O ports access should be uncached. As ns16550 is a driver, it should use map_physmem() rather than map_sysmem(). Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Simon Glass <sjg@chromium.org>
* | debug_uart: restore ns16550 as defaultThomas Chou2015-11-20-0/+1
|/ | | | | | | | | | | | | | Since commit 220e8021af96 ("nios2: convert altera_jtag_uart to driver model"), the default debug uart was changed. Most people use ns16550 UART, so restore it as default. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reported-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Reported-by: Ariel D'Alessandro <ariel@vanguardiasur.com.ar> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de> Acked-by: Simon Glass <sjg@chromium.org>
* altera_uart: change ioremap to map_physmemThomas Chou2015-11-18-2/+3
| | | | | | | Change ioremap() to map_physmem(), as it is more used in u-boot. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Marek Vasut <marex@denx.de>
* altera_jtag_uart: change ioremap to map_physmemThomas Chou2015-11-18-2/+3
| | | | | | | Change ioremap() to map_physmem(), as it is more used in u-boot. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Marek Vasut <marex@denx.de>
* sparc: leon3: Add debug_uart support to LEON3 serial driver.Francois Retief2015-11-13-0/+8
| | | | Signed-off-by: Francois Retief <fgretief@spaceteq.co.za>
* altera_uart: Adjust the declaration of debug_uart_init()Thomas Chou2015-11-06-1/+1
| | | | | | | | | Follow commit 97b059730218 ("debug_uart: Adjust the declaration of debug_uart_init()") Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Chin Liang See <clsee@altera.com>
* altera_jtag_uart: Adjust the declaration of debug_uart_init()Thomas Chou2015-11-06-1/+1
| | | | | | | | | Follow commit 97b059730218 ("debug_uart: Adjust the declaration of debug_uart_init()") Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Chin Liang See <clsee@altera.com>
* serial: altera_uart: minor clean upThomas Chou2015-11-06-11/+10
| | | | | | | | | | - Moved macro definitions to top - Re-arrange header includes ascending order - Remove unused header linux/compiler.h - Remove the penultimate comma in of_match ids Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Jagan Teki <jteki@openedev.com>
* serial: altera_uart: use BIT macroThomas Chou2015-11-06-3/+3
| | | | | | | | | | | Replace numerical bit shift with BIT macro in altera_uart :%s/(1 << nr)/BIT(nr)/g where nr = 0, 1, 2 .... 31 Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Jagan Teki <jteki@openedev.com>
* serial: altera_jtag_uart: minor clean upThomas Chou2015-11-06-14/+13
| | | | | | | | | | | - Moved macro definitions to top - Give spaces around the '>>' in ALTERA_JTAG_WSPACE() - Re-arrange header includes ascending order - Remove unused header linux/compiler.h - Remove the penultimate comma in of_match ids Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Jagan Teki <jteki@openedev.com>
* serial: altera_jtag_uart: use BIT macroThomas Chou2015-11-06-3/+3
| | | | | | | | | | | Replace numerical bit shift with BIT macro in altera_jtag_uart :%s/(1 << nr)/BIT(nr)/g where nr = 0, 1, 2 .... 31 Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Jagan Teki <jteki@openedev.com>
* arm: zynq: Move serial driver to driver modelSimon Glass2015-11-04-98/+65
| | | | | | | Update this driver to use driver model and change all users. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* arm: zynq: serial: Drop non-device-tree serial driver portionsSimon Glass2015-11-04-15/+0
| | | | | | | Since we use device tree in SPL also, we can drop this code. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* arm: zynq: Support the debug UARTSimon Glass2015-11-04-16/+68
| | | | | | | | Add support for the debug UART to assist with early debugging. Enable it for Zybo as an example. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* dm: serial: Deal with stdout-path with an aliasSimon Glass2015-11-04-5/+25
| | | | | | | | | | | | Sometimes stdout-path contains a UART alias along with speed, etc. For example: stdout-path = "serial0:115200n8"; Add support for decoding this. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* dm: keystone: serial: Add driver model supportLokesh Vutla2015-10-23-0/+49
| | | | | | | Add driver model support for keystone serial driver. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Acked-by: Simon Glass <sjg@chromium.org>
* serial: remove altera serial initializationsThomas Chou2015-10-23-4/+0
| | | | | | | | | | Both altera_jtag_serial_initialize() and altera_serial_initialize() are no longer used after they are converted to driver model. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Marek Vasut <marex@denx.de>
* nios2: convert altera_uart to driver modelThomas Chou2015-10-23-91/+121
| | | | | | | | Convert altera_uart to driver model. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Marek Vasut <marex@denx.de>
* nios2: convert altera_jtag_uart to driver modelThomas Chou2015-10-23-60/+137
| | | | | | | | Convert altera_jtag_uart to driver model. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Marek Vasut <marex@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
* drivers: serial: serial_omap: add comaptibles for all ti platformsMugunthan V N2015-10-22-0/+4
| | | | | | | Adding compatibles for am335x, am437x and dra7 platforms. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
* drivers: serial: serial_omap: populate default clock frequency when not ↵Mugunthan V N2015-10-22-1/+3
| | | | | | | | | | | found in dt In some platforms like am437x, serial node is not populated with clock-frequency node. So in that case have a default clock-clock frequency. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
* debug_uart: Add an option to announce the debug UARTSimon Glass2015-10-21-0/+10
| | | | | | | | | It is useful to see a message from the debug UART early during boot so that you know things are working. Add an option to enable this. The message will be displayed as soon as debug_uart_init() is called. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* debug_uart: Support board-specific UART initialisationSimon Glass2015-10-21-0/+11
| | | | | | | | | | | | Some boards need to set things up before the debug UART can be used. On these boards a call to debug_uart_init() is insufficient. When this option is enabled, the function board_debug_uart_init() will be called when debug_uart_init() is called. You can put any code here that is needed to set up the UART ready for use, such as set pin multiplexing or enable clocks. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* debug_uart: Adjust the declaration of debug_uart_init()Simon Glass2015-10-21-3/+3
| | | | | | | | | | | We want to be able to add other common code to this function. So change the driver's version to have an underscore before it, just like _debug_uart_putc(). Define debug_uart_init() to call this version. Update all drivers to this new method. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* serial: rockchip: make ROCKCHIP_SERIAL depend on ARCH_ROCKCHIPMasahiro Yamada2015-10-03-1/+1
| | | | | | | It looks like this line was copy-pasted, but not modified. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Simon Glass <sjg@chromium.org>
* arm: Remove unused ST-Ericsson u8500 archStefan Roese2015-09-15-22/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This arch does not seem to be supported / used at all in the current U-Boot mainline source tree any more. So lets remove the core u8500 code and code that was only referenced by this platform. Please note that this patch also removes these config options: - CONFIG_PL011_SERIAL_RLCR - CONFIG_PL011_SERIAL_FLUSH_ON_INIT As they only seem to be referenced by u8500 based boards. Without any such board in the current code, these config option don't make sense any more. Lets remove them as well. If someone still wants to use this platform, then please send patches to re-enable support by adding at least one board that references this code. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: John Rigby <john.rigby@linaro.org> Cc: Simon Glass <sjg@chromium.org> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Tom Rini <trini@konsulko.com> Cc: Heiko Schocher <hs@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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