diff options
| author | Dong Aisheng <aisheng.dong@nxp.com> | 2017-06-13 10:55:53 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-29 17:12:34 +0200 |
| commit | 97d6f353dafa42281dc70a67006c9e40d395796a (patch) | |
| tree | 426b431b368e24f805fcbd3af7e999c20505cbef /drivers/tty | |
| parent | 24b1e5f0e83c2aced8096473d20c4cf6c1355f30 (diff) | |
| download | op-kernel-dev-97d6f353dafa42281dc70a67006c9e40d395796a.zip op-kernel-dev-97d6f353dafa42281dc70a67006c9e40d395796a.tar.gz | |
tty: serial: lpuart: add earlycon support for imx7ulp
earlycon is executed quite early before the device tree probe,
so we need correctly initialize the port membase and iotype for
imx7ulp during early console setup before using.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Mingkai Hu <Mingkai.Hu@nxp.com>
Cc: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 9486333..a0f2666 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -1982,8 +1982,21 @@ static int __init lpuart32_early_console_setup(struct earlycon_device *device, return 0; } +static int __init lpuart32_imx_early_console_setup(struct earlycon_device *device, + const char *opt) +{ + if (!device->port.membase) + return -ENODEV; + + device->port.iotype = UPIO_MEM32; + device->port.membase += IMX_REG_OFF; + device->con->write = lpuart32_early_write; + + return 0; +} OF_EARLYCON_DECLARE(lpuart, "fsl,vf610-lpuart", lpuart_early_console_setup); OF_EARLYCON_DECLARE(lpuart32, "fsl,ls1021a-lpuart", lpuart32_early_console_setup); +OF_EARLYCON_DECLARE(lpuart32, "fsl,imx7ulp-lpuart", lpuart32_imx_early_console_setup); EARLYCON_DECLARE(lpuart, lpuart_early_console_setup); EARLYCON_DECLARE(lpuart32, lpuart32_early_console_setup); |
