From 315806cb19f9d375dccbc2d60fa14e16afdcd5ac Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 15 Jul 2008 18:44:34 +0100 Subject: [MIPS] Malta: Cleanup organization of code into directories. Signed-off-by: Ralf Baechle --- arch/mips/mti-malta/malta-platform.c | 65 ++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 arch/mips/mti-malta/malta-platform.c (limited to 'arch/mips/mti-malta/malta-platform.c') diff --git a/arch/mips/mti-malta/malta-platform.c b/arch/mips/mti-malta/malta-platform.c new file mode 100644 index 0000000..83b9bab --- /dev/null +++ b/arch/mips/mti-malta/malta-platform.c @@ -0,0 +1,65 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2007 MIPS Technologies, Inc. + * written by Ralf Baechle (ralf@linux-mips.org) + * + * Probe driver for the Malta's UART ports: + * + * o 2 ports in the SMC SuperIO + * o 1 port in the CBUS UART, a discrete 16550 which normally is only used + * for bringups. + * + * We don't use 8250_platform.c on Malta as it would result in the CBUS + * UART becoming ttyS0. + */ +#include +#include +#include + +#define SMC_PORT(base, int) \ +{ \ + .iobase = base, \ + .irq = int, \ + .uartclk = 1843200, \ + .iotype = UPIO_PORT, \ + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \ + .regshift = 0, \ +} + +#define CBUS_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP) + +static struct plat_serial8250_port uart8250_data[] = { + SMC_PORT(0x3F8, 4), + SMC_PORT(0x2F8, 3), + { + .mapbase = 0x1f000900, /* The CBUS UART */ + .irq = MIPS_CPU_IRQ_BASE + 2, + .uartclk = 3686400, /* Twice the usual clk! */ + .iotype = UPIO_MEM32, + .flags = CBUS_UART_FLAGS, + .regshift = 3, + }, + { }, +}; + +static struct platform_device uart8250_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM2, + .dev = { + .platform_data = uart8250_data, + }, +}; + +static int __init uart8250_init(void) +{ + return platform_device_register(&uart8250_device); +} + +module_init(uart8250_init); + +MODULE_AUTHOR("Ralf Baechle "); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("8250 UART probe driver for the Malta CBUS UART"); -- cgit v1.1