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 #include <linux/gpio.h>
18
19 #include <asm/mach-types.h>
20 #include <asm/mach/arch.h>
21 #include <asm/mach/time.h>
22
23 #include "common.h"
24 #include "devices-imx1.h"
25 #include "hardware.h"
26 #include "iomux-mx1.h"
27
28 /*
29 * This scb9328 has a 32MiB flash
30 */
31 static struct resource flash_resource = {
32 .start = MX1_CS0_PHYS,
33 .end = MX1_CS0_PHYS + (32 * 1024 * 1024) - 1,
34 .flags = IORESOURCE_MEM,
35 };
36
37 static struct physmap_flash_data scb_flash_data = {
38 .width = 2,
39 };
40
41 static struct platform_device scb_flash_device = {
42 .name = "physmap-flash",
43 .id = 0,
44 .dev = {
45 .platform_data = &scb_flash_data,
46 },
47 .resource = &flash_resource,
48 .num_resources = 1,
49 };
50
51 /*
52 * scb9328 has a DM9000 network controller
53 * connected to CS5, with 16 bit data path
54 * and interrupt connected to GPIO 3
55 */
56
57 /*
58 * internal datapath is fixed 16 bit
59 */
60 static struct dm9000_plat_data dm9000_platdata = {
61 .flags = DM9000_PLATF_16BITONLY,
62 };
63
64 /*
65 * the DM9000 drivers wants two defined address spaces
66 * to gain access to address latch registers and the data path.
67 */
68 static struct resource dm9000x_resources[] = {
69 {
70 .name = "address area",
71 .start = MX1_CS5_PHYS,
72 .end = MX1_CS5_PHYS + 1,
73 .flags = IORESOURCE_MEM, /* address access */
74 }, {
75 .name = "data area",
76 .start = MX1_CS5_PHYS + 4,
77 .end = MX1_CS5_PHYS + 5,
78 .flags = IORESOURCE_MEM, /* data access */
79 }, {
80 /* irq number is run-time assigned */
81 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
82 },
83 };
84
85 static struct platform_device dm9000x_device = {
86 .name = "dm9000",
87 .id = 0,
88 .num_resources = ARRAY_SIZE(dm9000x_resources),
89 .resource = dm9000x_resources,
90 .dev = {
91 .platform_data = &dm9000_platdata,
92 }
93 };
94
95 static const int mxc_uart1_pins[] = {
96 PC9_PF_UART1_CTS,
97 PC10_PF_UART1_RTS,
98 PC11_PF_UART1_TXD,
99 PC12_PF_UART1_RXD,
100 };
101
102 static const struct imxuart_platform_data uart_pdata __initconst = {
103 .flags = IMXUART_HAVE_RTSCTS,
104 };
105
106 static struct platform_device *devices[] __initdata = {
107 &scb_flash_device,
108 &dm9000x_device,
109 };
110
111 /*
112 * scb9328_init - Init the CPU card itself
113 */
scb9328_init(void)114 static void __init scb9328_init(void)
115 {
116 imx1_soc_init();
117
118 mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
119 ARRAY_SIZE(mxc_uart1_pins), "UART1");
120
121 imx1_add_imx_uart0(&uart_pdata);
122
123 printk(KERN_INFO"Scb9328: Adding devices\n");
124 dm9000x_resources[2].start = gpio_to_irq(IMX_GPIO_NR(3, 3));
125 dm9000x_resources[2].end = gpio_to_irq(IMX_GPIO_NR(3, 3));
126 platform_add_devices(devices, ARRAY_SIZE(devices));
127 }
128
scb9328_timer_init(void)129 static void __init scb9328_timer_init(void)
130 {
131 mx1_clocks_init(32000);
132 }
133
134 MACHINE_START(SCB9328, "Synertronixx scb9328")
135 /* Sascha Hauer */
136 .atag_offset = 100,
137 .map_io = mx1_map_io,
138 .init_early = imx1_init_early,
139 .init_irq = mx1_init_irq,
140 .init_time = scb9328_timer_init,
141 .init_machine = scb9328_init,
142 .restart = mxc_restart,
143 MACHINE_END
144