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.
5 *
6 * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
7 */
8
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>
15
16static struct plat_serial8250_port uart8250_data[5];
17
18static struct platform_device uart8250_device = {
19	.name			= "serial8250",
20	.id			= PLAT8250_DEV_PLATFORM,
21	.dev			= {
22		.platform_data	= uart8250_data,
23	},
24};
25
26#ifdef CONFIG_BCM47XX_SSB
27static int __init uart8250_init_ssb(void)
28{
29	int i;
30	struct ssb_mipscore *mcore = &(bcm47xx_bus.ssb.mipscore);
31
32	memset(&uart8250_data, 0,  sizeof(uart8250_data));
33
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]);
38
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;
46	}
47	return platform_device_register(&uart8250_device);
48}
49#endif
50
51#ifdef CONFIG_BCM47XX_BCMA
52static int __init uart8250_init_bcma(void)
53{
54	int i;
55	struct bcma_drv_cc *cc = &(bcm47xx_bus.bcma.bus.drv_cc);
56
57	memset(&uart8250_data, 0,  sizeof(uart8250_data));
58
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]);
64
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;
72	}
73	return platform_device_register(&uart8250_device);
74}
75#endif
76
77static int __init uart8250_init(void)
78{
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
88	}
89	return -EINVAL;
90}
91
92module_init(uart8250_init);
93
94MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>");
95MODULE_LICENSE("GPL");
96MODULE_DESCRIPTION("8250 UART probe driver for the BCM47XX platforms");
97