sh: VoyagerGX cleanups and 8250 UART support.
[linux-2.6.git] / arch / sh / boards / renesas / rts7751r2d / setup.c
1 /*
2  * Renesas Technology Sales RTS7751R2D Support.
3  *
4  * Copyright (C) 2002 Atom Create Engineering Co., Ltd.
5  * Copyright (C) 2004 - 2006 Paul Mundt
6  *
7  * This file is subject to the terms and conditions of the GNU General Public
8  * License.  See the file "COPYING" in the main directory of this archive
9  * for more details.
10  */
11 #include <linux/init.h>
12 #include <linux/platform_device.h>
13 #include <linux/serial_8250.h>
14 #include <linux/pm.h>
15 #include <asm/io.h>
16 #include <asm/mach/rts7751r2d.h>
17 #include <asm/mach/voyagergx_reg.h>
18
19 static struct plat_serial8250_port uart_platform_data[] = {
20         {
21                 .membase        = (void *)VOYAGER_UART_BASE,
22                 .mapbase        = VOYAGER_UART_BASE,
23                 .iotype         = UPIO_MEM,
24                 .irq            = VOYAGER_UART0_IRQ,
25                 .flags          = UPF_BOOT_AUTOCONF,
26                 .regshift       = 2,
27                 .uartclk        = (9600 * 16),
28         }, {
29                 .flags          = 0,
30         },
31 };
32
33 static void __init voyagergx_serial_init(void)
34 {
35         unsigned long val;
36
37         /*
38          * GPIO Control
39          */
40         val = inl(GPIO_MUX_HIGH);
41         val |= 0x00001fe0;
42         outl(val, GPIO_MUX_HIGH);
43
44         /*
45          * Power Mode Gate
46          */
47         val = inl(POWER_MODE0_GATE);
48         val |= (POWER_MODE0_GATE_U0 | POWER_MODE0_GATE_U1);
49         outl(val, POWER_MODE0_GATE);
50
51         val = inl(POWER_MODE1_GATE);
52         val |= (POWER_MODE1_GATE_U0 | POWER_MODE1_GATE_U1);
53         outl(val, POWER_MODE1_GATE);
54 }
55
56 static struct platform_device uart_device = {
57         .name           = "serial8250",
58         .id             = -1,
59         .dev            = {
60                 .platform_data  = uart_platform_data,
61         },
62 };
63
64 static struct platform_device *rts7751r2d_devices[] __initdata = {
65         &uart_device,
66 };
67
68 static int __init rts7751r2d_devices_setup(void)
69 {
70         return platform_add_devices(rts7751r2d_devices,
71                                     ARRAY_SIZE(rts7751r2d_devices));
72 }
73 __initcall(rts7751r2d_devices_setup);
74
75 const char *get_system_type(void)
76 {
77         return "RTS7751R2D";
78 }
79
80 static void rts7751r2d_power_off(void)
81 {
82         ctrl_outw(0x0001, PA_POWOFF);
83 }
84
85 /*
86  * Initialize the board
87  */
88 void __init platform_setup(void)
89 {
90         printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n");
91         ctrl_outw(0x0000, PA_OUTPORT);
92         pm_power_off = rts7751r2d_power_off;
93
94         voyagergx_serial_init();
95
96 }