diff options
Diffstat (limited to 'drivers/tty/serial/8250/8250_early.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_early.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c index e3f482fd3de4..842422921765 100644 --- a/drivers/tty/serial/8250/8250_early.c +++ b/drivers/tty/serial/8250/8250_early.c @@ -46,8 +46,10 @@ static unsigned int serial8250_early_in(struct uart_port *port, int offset) return readl(port->membase + offset); case UPIO_MEM32BE: return ioread32be(port->membase + offset); +#ifdef CONFIG_HAS_IOPORT case UPIO_PORT: return inb(port->iobase + offset); +#endif default: return 0; } @@ -70,9 +72,11 @@ static void serial8250_early_out(struct uart_port *port, int offset, int value) case UPIO_MEM32BE: iowrite32be(value, port->membase + offset); break; +#ifdef CONFIG_HAS_IOPORT case UPIO_PORT: outb(value, port->iobase + offset); break; +#endif } } @@ -171,6 +175,17 @@ OF_EARLYCON_DECLARE(ns16550a, "ns16550a", early_serial8250_setup); OF_EARLYCON_DECLARE(uart, "nvidia,tegra20-uart", early_serial8250_setup); OF_EARLYCON_DECLARE(uart, "snps,dw-apb-uart", early_serial8250_setup); +static int __init early_serial8250_rs2_setup(struct earlycon_device *device, + const char *options) +{ + device->port.regshift = 2; + + return early_serial8250_setup(device, options); +} +OF_EARLYCON_DECLARE(uart, "intel,xscale-uart", early_serial8250_rs2_setup); +OF_EARLYCON_DECLARE(uart, "mrvl,mmp-uart", early_serial8250_rs2_setup); +OF_EARLYCON_DECLARE(uart, "mrvl,pxa-uart", early_serial8250_rs2_setup); + #ifdef CONFIG_SERIAL_8250_OMAP static int __init early_omap8250_setup(struct earlycon_device *device, |