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 */
32 static struct resource flash_resource = {
33 .start = MX1_CS0_PHYS,
34 .end = MX1_CS0_PHYS + (32 * 1024 * 1024) - 1,
35 .flags = IORESOURCE_MEM,
36 };
37
38 static struct physmap_flash_data scb_flash_data = {
39 .width = 2,
40 };
41
42 static 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 */
61 static 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 */
69 static 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
87 static 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
97 static 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
104 static const struct imxuart_platform_data uart_pdata __initconst = {
105 .flags = IMXUART_HAVE_RTSCTS,
106 };
107
108 static struct platform_device *devices[] __initdata = {
109 &scb_flash_device,
110 &dm9000x_device,
111 };
112
113 /*
114 * scb9328_init - Init the CPU card itself
115 */
scb9328_init(void)116 static void __init scb9328_init(void)
117 {
118 imx1_soc_init();
119
120 mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
121 ARRAY_SIZE(mxc_uart1_pins), "UART1");
122
123 imx1_add_imx_uart0(&uart_pdata);
124
125 printk(KERN_INFO"Scb9328: Adding devices\n");
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 static struct sys_timer scb9328_timer = {
135 .init = scb9328_timer_init,
136 };
137
138 MACHINE_START(SCB9328, "Synertronixx scb9328")
139 /* Sascha Hauer */
140 .atag_offset = 100,
141 .map_io = mx1_map_io,
142 .init_early = imx1_init_early,
143 .init_irq = mx1_init_irq,
144 .handle_irq = imx1_handle_irq,
145 .timer = &scb9328_timer,
146 .init_machine = scb9328_init,
147 .restart = mxc_restart,
148 MACHINE_END
149