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| // SPDX-License-Identifier: GPL-2.0-or-later
| /*
| * Registration of Cobalt UART platform device.
| *
| * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org>
| */
| #include <linux/errno.h>
| #include <linux/init.h>
| #include <linux/ioport.h>
| #include <linux/platform_device.h>
| #include <linux/serial_8250.h>
|
| #include <cobalt.h>
| #include <irq.h>
|
| static struct resource cobalt_uart_resource[] __initdata = {
| {
| .start = 0x1c800000,
| .end = 0x1c800007,
| .flags = IORESOURCE_MEM,
| },
| {
| .start = SERIAL_IRQ,
| .end = SERIAL_IRQ,
| .flags = IORESOURCE_IRQ,
| },
| };
|
| static struct plat_serial8250_port cobalt_serial8250_port[] = {
| {
| .irq = SERIAL_IRQ,
| .uartclk = 18432000,
| .iotype = UPIO_MEM,
| .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
| .mapbase = 0x1c800000,
| },
| {},
| };
|
| static __init int cobalt_uart_add(void)
| {
| struct platform_device *pdev;
| int retval;
|
| /*
| * Cobalt Qube1 has no UART.
| */
| if (cobalt_board_id == COBALT_BRD_ID_QUBE1)
| return 0;
|
| pdev = platform_device_alloc("serial8250", -1);
| if (!pdev)
| return -ENOMEM;
|
| pdev->id = PLAT8250_DEV_PLATFORM;
| pdev->dev.platform_data = cobalt_serial8250_port;
|
| retval = platform_device_add_resources(pdev, cobalt_uart_resource, ARRAY_SIZE(cobalt_uart_resource));
| if (retval)
| goto err_free_device;
|
| retval = platform_device_add(pdev);
| if (retval)
| goto err_free_device;
|
| return 0;
|
| err_free_device:
| platform_device_put(pdev);
|
| return retval;
| }
| device_initcall(cobalt_uart_add);
|
|
