blk: rq_data_dir() should not return a boolean
[cris-mirror.git] / arch / mips / bcm47xx / serial.c
blobdf761d38f7fc989bd0ec51df191661a35278e64d
1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
6 * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
7 */
9 #include <linux/module.h>
10 #include <linux/init.h>
11 #include <linux/serial.h>
12 #include <linux/serial_8250.h>
13 #include <linux/ssb/ssb.h>
14 #include <bcm47xx.h>
16 static struct plat_serial8250_port uart8250_data[5];
18 static struct platform_device uart8250_device = {
19 .name = "serial8250",
20 .id = PLAT8250_DEV_PLATFORM,
21 .dev = {
22 .platform_data = uart8250_data,
26 #ifdef CONFIG_BCM47XX_SSB
27 static int __init uart8250_init_ssb(void)
29 int i;
30 struct ssb_mipscore *mcore = &(bcm47xx_bus.ssb.mipscore);
32 memset(&uart8250_data, 0, sizeof(uart8250_data));
34 for (i = 0; i < mcore->nr_serial_ports &&
35 i < ARRAY_SIZE(uart8250_data) - 1; i++) {
36 struct plat_serial8250_port *p = &(uart8250_data[i]);
37 struct ssb_serial_port *ssb_port = &(mcore->serial_ports[i]);
39 p->mapbase = (unsigned int)ssb_port->regs;
40 p->membase = (void *)ssb_port->regs;
41 p->irq = ssb_port->irq + 2;
42 p->uartclk = ssb_port->baud_base;
43 p->regshift = ssb_port->reg_shift;
44 p->iotype = UPIO_MEM;
45 p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
47 return platform_device_register(&uart8250_device);
49 #endif
51 #ifdef CONFIG_BCM47XX_BCMA
52 static int __init uart8250_init_bcma(void)
54 int i;
55 struct bcma_drv_cc *cc = &(bcm47xx_bus.bcma.bus.drv_cc);
57 memset(&uart8250_data, 0, sizeof(uart8250_data));
59 for (i = 0; i < cc->nr_serial_ports &&
60 i < ARRAY_SIZE(uart8250_data) - 1; i++) {
61 struct plat_serial8250_port *p = &(uart8250_data[i]);
62 struct bcma_serial_port *bcma_port;
63 bcma_port = &(cc->serial_ports[i]);
65 p->mapbase = (unsigned int)bcma_port->regs;
66 p->membase = (void *)bcma_port->regs;
67 p->irq = bcma_port->irq;
68 p->uartclk = bcma_port->baud_base;
69 p->regshift = bcma_port->reg_shift;
70 p->iotype = UPIO_MEM;
71 p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
73 return platform_device_register(&uart8250_device);
75 #endif
77 static int __init uart8250_init(void)
79 switch (bcm47xx_bus_type) {
80 #ifdef CONFIG_BCM47XX_SSB
81 case BCM47XX_BUS_TYPE_SSB:
82 return uart8250_init_ssb();
83 #endif
84 #ifdef CONFIG_BCM47XX_BCMA
85 case BCM47XX_BUS_TYPE_BCMA:
86 return uart8250_init_bcma();
87 #endif
89 return -EINVAL;
92 module_init(uart8250_init);
94 MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>");
95 MODULE_LICENSE("GPL");
96 MODULE_DESCRIPTION("8250 UART probe driver for the BCM47XX platforms");