mach-scb9328.c revision 3a6f52a79fc0ce1c8b950c628bcf101f8652e957 
1/*
2 * linux/arch/arm/mach-mx1/mach-scb9328.c
3 *
4 * Copyright (c) 2004 Sascha Hauer <saschahauer@web.de>
5 * Copyright (c) 2006-2008 Juergen Beisert <jbeisert@netscape.net>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 */
12
13#include <linux/platform_device.h>
14#include <linux/mtd/physmap.h>
15#include <linux/interrupt.h>
16#include <linux/dm9000.h>
17
18#include <asm/mach-types.h>
19#include <asm/mach/arch.h>
20#include <asm/mach/time.h>
21
22#include <mach/common.h>
23#include <mach/hardware.h>
24#include <mach/irqs.h>
25#include <mach/iomux-mx1.h>
26
27#include "devices-imx1.h"
28
29/*
30 * This scb9328 has a 32MiB flash
31 */
32static struct resource flash_resource = {
33	.start	= MX1_CS0_PHYS,
34	.end	= MX1_CS0_PHYS + (32 * 1024 * 1024) - 1,
35	.flags	= IORESOURCE_MEM,
36};
37
38static struct physmap_flash_data scb_flash_data = {
39	.width  = 2,
40};
41
42static struct platform_device scb_flash_device = {
43	.name		= "physmap-flash",
44	.id		= 0,
45	.dev = {
46		.platform_data = &scb_flash_data,
47	},
48	.resource = &flash_resource,
49	.num_resources = 1,
50};
51
52/*
53 * scb9328 has a DM9000 network controller
54 * connected to CS5, with 16 bit data path
55 * and interrupt connected to GPIO 3
56 */
57
58/*
59 * internal datapath is fixed 16 bit
60 */
61static struct dm9000_plat_data dm9000_platdata = {
62	.flags	= DM9000_PLATF_16BITONLY,
63};
64
65/*
66 * the DM9000 drivers wants two defined address spaces
67 * to gain access to address latch registers and the data path.
68 */
69static struct resource dm9000x_resources[] = {
70	{
71		.name	= "address area",
72		.start	= MX1_CS5_PHYS,
73		.end	= MX1_CS5_PHYS + 1,
74		.flags	= IORESOURCE_MEM,	/* address access */
75	}, {
76		.name	= "data area",
77		.start	= MX1_CS5_PHYS + 4,
78		.end	= MX1_CS5_PHYS + 5,
79		.flags	= IORESOURCE_MEM,	/* data access */
80	}, {
81		.start	= IRQ_GPIOC(3),
82		.end	= IRQ_GPIOC(3),
83		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
84	},
85};
86
87static struct platform_device dm9000x_device = {
88	.name		= "dm9000",
89	.id		= 0,
90	.num_resources	= ARRAY_SIZE(dm9000x_resources),
91	.resource	= dm9000x_resources,
92	.dev		= {
93		.platform_data = &dm9000_platdata,
94	}
95};
96
97static const int mxc_uart1_pins[] = {
98	PC9_PF_UART1_CTS,
99	PC10_PF_UART1_RTS,
100	PC11_PF_UART1_TXD,
101	PC12_PF_UART1_RXD,
102};
103
104static int uart1_mxc_init(struct platform_device *pdev)
105{
106	return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
107			ARRAY_SIZE(mxc_uart1_pins), "UART1");
108}
109
110static void uart1_mxc_exit(struct platform_device *pdev)
111{
112	mxc_gpio_release_multiple_pins(mxc_uart1_pins,
113			ARRAY_SIZE(mxc_uart1_pins));
114}
115
116static const struct imxuart_platform_data uart_pdata __initconst = {
117	.init = uart1_mxc_init,
118	.exit = uart1_mxc_exit,
119	.flags = IMXUART_HAVE_RTSCTS,
120};
121
122static struct platform_device *devices[] __initdata = {
123	&scb_flash_device,
124	&dm9000x_device,
125};
126
127/*
128 * scb9328_init - Init the CPU card itself
129 */
130static void __init scb9328_init(void)
131{
132	imx1_add_imx_uart0(&uart_pdata);
133
134	printk(KERN_INFO"Scb9328: Adding devices\n");
135	platform_add_devices(devices, ARRAY_SIZE(devices));
136}
137
138static void __init scb9328_timer_init(void)
139{
140	mx1_clocks_init(32000);
141}
142
143static struct sys_timer scb9328_timer = {
144	.init	= scb9328_timer_init,
145};
146
147MACHINE_START(SCB9328, "Synertronixx scb9328")
148    /* Sascha Hauer */
149	.boot_params	= 0x08000100,
150	.map_io		= mx1_map_io,
151	.init_irq	= mx1_init_irq,
152	.timer		= &scb9328_timer,
153	.init_machine	= scb9328_init,
154MACHINE_END
155