[PATCH 01/10] serial: mvebu-uart: initial support for Armada-3700 serial port

Marcin Wojtas
2016-02-03T08:05:55Z

Hi Gregory

> +
> +static int mvebu_uart_startup(struct uart_port *port)
> +{
> + int ret;
> +
> + writel(CTRL_TXFIFO_RST | CTRL_RXFIFO_RST,
> + port->membase + UART_CTRL);
> + udelay(1);
> + writel(CTRL_RX_INT, port->membase + UART_CTRL);
> +
> + ret = request_irq(port->irq, mvebu_uart_isr, port->irqflags, "serial",
> + port);
> + if (ret) {
> + dev_err(port->dev, "failed to request irq\n");
> + return ret;
> + }
> +
> + return 0;
> +}
> +

> +static int mvebu_uart_probe(struct platform_device *pdev)
> +{
> + struct resource *reg = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> + struct resource *irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
> + struct uart_port *port;
> + struct mvebu_uart_data *data;
> + int ret;
> +
> + if (!reg || !irq) {
> + dev_err(&pdev->dev, "no registers/irq defined\n");
> + return -EINVAL;
> + }
> +
> + port = &mvebu_uart_ports[0];
> +
> + spin_lock_init(&port->lock);
> +
> + port->dev = &pdev->dev;
> + port->type = PORT_MVEBU;
> + port->ops = &mvebu_uart_ops;
> + port->regshift = 0;
> +
> + port->fifosize = 32;
> + port->iotype = UPIO_MEM32;
> + port->flags = UPF_FIXED_PORT;
> + port->line = 0; /* single port: force line number to 0 */
> +
> + port->irq = irq->start;
> + port->irqflags = 0;

Please use port->irqflags = IRQF_SHARED;
As ubuntu opens multiple consoles A3700 can't boot to it (only to
buildroot with single console).

Best regards,
Marcin