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* Multi-console: Deprecate the `finish_console_register` macroSoby Mathew2018-10-191-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The `finish_console_register` macro is used by the multi console framework to register the `console_t` driver callbacks. It relied on weak references to the `ldr` instruction to populate 0 to the callback in case the driver has not defined the appropriate function. Use of `ldr` instruction to load absolute address to a reference makes the binary position dependant. These instructions should be replaced with adrp/adr instruction for position independant executable(PIE). But adrp/adr instructions don't work well with weak references as described in GNU ld bugzilla issue 22589. This patch defines a new version of `finish_console_register` macro which can spcify which driver callbacks are valid and deprecates the old one. If any of the argument is not specified, then the macro populates 0 for that callback. Hence the functionality of the previous deprecated macro is preserved. The USE_FINISH_CONSOLE_REG_2 define is used to select the new variant of the macro and will be removed once the deprecated variant is removed. All the upstream console drivers have been migrated to use the new macro in this patch. NOTE: Platforms be aware that the new variant of the `finish_console_register` should be used and the old variant is deprecated. Change-Id: Ia6a67aaf2aa3ba93932992d683587bbd0ad25259 Signed-off-by: Soby Mathew <soby.mathew@arm.com>
* pl011: cnds: cbmem: 16550: Fix commentsAntonio Nino Diaz2018-10-121-2/+3
| | | | | | | | | The comments with the prototypes of the register functions of the console drivers are incorrect. The arguments are wrong. This patch fixes them. Change-Id: I38c4b481ee69e840780111c42f03c0752eb6315c Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
* console: Remove deprecated filesAntonio Nino Diaz2018-09-281-9/+0
| | | | | Change-Id: Ib9eebbdff6f7868e1d1b8c41761cacc7501a25bd Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
* drivers: ti: uart: Add TI specific 16550 initializationBenjamin Fair2018-06-111-0/+4
| | | | | | | | | | | | | | | | On TI platforms the UART is disabled by default and must be explicitly enabled using the MDR1 register. NOTE: The original definition of http://www.ti.com/lit/ds/symlink/pc16550d.pdf has no MDR register, but many TI SoCs implementing 16550 do have a quirky MDR register implemented. So, this should be enabled with TI_16550_MDR_QUIRK NOTE: In such implementation, the CSR register does not exist. Signed-off-by: Benjamin Fair <b-fair@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Andrew F. Davis <afd@ti.com>
* drivers: ti: 16550: Implement console flushAntonio Nino Diaz2018-03-221-7/+36
| | | | | | | Replace placeholder by actual implementation. Change-Id: I0861b1ac5304b0d2d7c32d7d9a48bd985e258e92 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
* drivers: ti: uart: Update 16550 UART driver to support MULTI_CONSOLE_APIJulius Werner2018-01-191-25/+122
| | | | | | | | | This patch updates the TI 16550 console driver to support the new console API. The driver will continue to support the old API as well by checking the MULTI_CONSOLE_API compile-time flag. Change-Id: I60a44b7ba3c35c74561824c04b8dbe3e3039324c Signed-off-by: Julius Werner <jwerner@chromium.org>
* Use SPDX license identifiersdp-arm2017-05-032-50/+2
| | | | | | | | | | | | To make software license auditing simpler, use SPDX[0] license identifiers instead of duplicating the license text in every file. NOTE: Files that have been imported by FreeBSD have not been modified. [0]: https://spdx.org/ Change-Id: I80a00e1f641b8cc075ca5a95b10607ed9ed8761a Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
* drivers: ti: uart: remove UART_FCR writesVarun Wadekar2017-04-211-6/+0
| | | | | | | | | | | This patch removes the code that touched UART_FCR, from console_core_putc(). The check for whether transmit FIFO is full is sufficient before writing to UART TX FIFO. In fact setting UARTFCR_TXCLR immediately after a byte is written to FIFO might even result in loss of that byte, if UART hasn't sent that byte out yet. Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
* Add console_core_flush() in upstream platformsAntonio Nino Diaz2017-03-311-1/+17
| | | | | | | | | | | | It is needed to add placeholders for this function because, as this is not a `plat_xxx()` function, there aren't weak definitions of it in any file. If `console_flush()` is used and there isn't an implementation of `console_core_flush()` in any file, the compilation will fail. Change-Id: I50eb56d085c4c9fbc85d40c343e86af6412f3020 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
* uart: 16550: Fix getcNishanth Menon2017-01-101-1/+1
| | | | | | | | | | | | | tbz check for RDR status is to check for a bit being zero. Unfortunately, we are using a mask rather than the bit position. Further as per http://www.ti.com/lit/ds/symlink/pc16550d.pdf (page 17), LSR register bit 0 is Data ready status (RDR), not bit position 2. Update the same to match the specification. Reported-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com>
* Move console drivers to AArch64 folderSoby Mathew2016-08-092-126/+159
| | | | | | | | | This patch moves the various assembly console drivers into `aarch64` architecture specific folder. Stub files, which include files from new location, are retained at the original location for platform compatibility reasons. Change-Id: I0069b6c1c0489ca47f5204d4e26e3bc3def533a8
* Driver for 16550 UART interfaceVarun Wadekar2015-05-291-0/+155
This patch adds driver for the 16550 UART interface. The driver is exposed as a console, which platforms can use to dump their boot/crash logs. Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
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