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