diff options
| author | Michal Simek <michal.simek@xilinx.com> | 2016-02-23 10:02:28 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-02-25 19:06:37 -0500 |
| commit | 966bfa7347ba2d1bc938988abca8ed3f65f8e57a (patch) | |
| tree | 9bd0e42bc6e791bfb1b6bbaea06440796659c96e /drivers/serial/Kconfig | |
| parent | 05195b2cbe5e8bd6df164503a4da9c84a7fe066f (diff) | |
serial: dcc: Move driver to DM
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>
Diffstat (limited to 'drivers/serial/Kconfig')
| -rw-r--r-- | drivers/serial/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index fac3176..92d4212 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -119,6 +119,17 @@ config DEBUG_UART_UARTLITE You will need to provide parameters to make this work. The driver will be available until the real driver-model serial is running. +config DEBUG_UART_ARM_DCC + bool "ARM DCC" + help + Select this to enable a debug UART using the ARM JTAG DCC port. + The DCC port can be used for very early debugging and doesn't require + any additional setting like address/baudrate/clock. On systems without + any serial interface this is the easiest way how to get console. + Every ARM core has own DCC port which is the part of debug interface. + This port is available at least on ARMv6, ARMv7, ARMv8 and XScale + architectures. + config DEBUG_UART_ZYNQ bool "Xilinx Zynq" help |