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- // SPDX-License-Identifier: GPL-2.0-or-later
- /*
- * Registration of Cobalt UART platform device.
- *
- * Copyright (C) 2007 Yoichi Yuasa <[email protected]>
- */
- #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);
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