1 /*
2 * arch/arm/mach-netx/nxeb500hmi.c
3 *
4 * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2
8 * as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20 #include <linux/dma-mapping.h>
21 #include <linux/init.h>
22 #include <linux/interrupt.h>
23 #include <linux/mtd/plat-ram.h>
24 #include <linux/platform_device.h>
25 #include <linux/amba/bus.h>
26 #include <linux/amba/clcd.h>
27
28 #include <mach/hardware.h>
29 #include <asm/mach-types.h>
30 #include <asm/mach/arch.h>
31 #include <mach/netx-regs.h>
32 #include <mach/eth.h>
33
34 #include "generic.h"
35 #include "fb.h"
36
37 static struct clcd_panel qvga = {
38 .mode = {
39 .name = "QVGA",
40 .refresh = 60,
41 .xres = 240,
42 .yres = 320,
43 .pixclock = 187617,
44 .left_margin = 6,
45 .right_margin = 26,
46 .upper_margin = 0,
47 .lower_margin = 6,
48 .hsync_len = 6,
49 .vsync_len = 1,
50 .sync = 0,
51 .vmode = FB_VMODE_NONINTERLACED,
52 },
53 .width = -1,
54 .height = -1,
55 .tim2 = 16,
56 .cntl = CNTL_LCDTFT | CNTL_BGR,
57 .bpp = 16,
58 .grayscale = 0,
59 };
60
nxeb500hmi_check(struct clcd_fb * fb,struct fb_var_screeninfo * var)61 static inline int nxeb500hmi_check(struct clcd_fb *fb, struct fb_var_screeninfo *var)
62 {
63 var->green.length = 5;
64 var->green.msb_right = 0;
65
66 return clcdfb_check(fb, var);
67 }
68
nxeb500hmi_clcd_setup(struct clcd_fb * fb)69 static int nxeb500hmi_clcd_setup(struct clcd_fb *fb)
70 {
71 unsigned int val;
72
73 fb->fb.var.green.length = 5;
74 fb->fb.var.green.msb_right = 0;
75
76 /* enable asic control */
77 val = readl(NETX_SYSTEM_IOC_ACCESS_KEY);
78 writel(val, NETX_SYSTEM_IOC_ACCESS_KEY);
79
80 writel(3, NETX_SYSTEM_IOC_CR);
81
82 /* GPIO 14 is used for display enable on newer boards */
83 writel(9, NETX_GPIO_CFG(14));
84
85 val = readl(NETX_PIO_OUTPIO);
86 writel(val | 1, NETX_PIO_OUTPIO);
87
88 val = readl(NETX_PIO_OEPIO);
89 writel(val | 1, NETX_PIO_OEPIO);
90 return netx_clcd_setup(fb);
91 }
92
93 static struct clcd_board clcd_data = {
94 .name = "netX",
95 .check = nxeb500hmi_check,
96 .decode = clcdfb_decode,
97 .enable = netx_clcd_enable,
98 .setup = nxeb500hmi_clcd_setup,
99 .mmap = netx_clcd_mmap,
100 .remove = netx_clcd_remove,
101 };
102
103 static struct netxeth_platform_data eth0_platform_data = {
104 .xcno = 0,
105 };
106
107 static struct platform_device netx_eth0_device = {
108 .name = "netx-eth",
109 .id = 0,
110 .num_resources = 0,
111 .resource = NULL,
112 .dev = {
113 .platform_data = ð0_platform_data,
114 }
115 };
116
117 static struct netxeth_platform_data eth1_platform_data = {
118 .xcno = 1,
119 };
120
121 static struct platform_device netx_eth1_device = {
122 .name = "netx-eth",
123 .id = 1,
124 .num_resources = 0,
125 .resource = NULL,
126 .dev = {
127 .platform_data = ð1_platform_data,
128 }
129 };
130
131 static struct resource netx_cf_resources[] = {
132 [0] = {
133 .start = 0x20000000,
134 .end = 0x25ffffff,
135 .flags = IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT,
136 },
137 };
138
139 static struct platform_device netx_cf_device = {
140 .name = "netx-cf",
141 .id = 0,
142 .resource = netx_cf_resources,
143 .num_resources = ARRAY_SIZE(netx_cf_resources),
144 };
145
146 static struct resource netx_uart0_resources[] = {
147 [0] = {
148 .start = 0x00100A00,
149 .end = 0x00100A3F,
150 .flags = IORESOURCE_MEM,
151 },
152 [1] = {
153 .start = (NETX_IRQ_UART0),
154 .end = (NETX_IRQ_UART0),
155 .flags = IORESOURCE_IRQ,
156 },
157 };
158
159 static struct platform_device netx_uart0_device = {
160 .name = "netx-uart",
161 .id = 0,
162 .num_resources = ARRAY_SIZE(netx_uart0_resources),
163 .resource = netx_uart0_resources,
164 };
165
166 static struct platform_device *devices[] __initdata = {
167 &netx_eth0_device,
168 &netx_eth1_device,
169 &netx_cf_device,
170 &netx_uart0_device,
171 };
172
nxeb500hmi_init(void)173 static void __init nxeb500hmi_init(void)
174 {
175 netx_fb_init(&clcd_data, &qvga);
176 platform_add_devices(devices, ARRAY_SIZE(devices));
177 }
178
179 MACHINE_START(NXEB500HMI, "Hilscher nxeb500hmi")
180 .phys_io = 0x00100000,
181 .io_pg_offst = (io_p2v(0x00100000) >> 18) & 0xfffc,
182 .boot_params = 0x80000100,
183 .map_io = netx_map_io,
184 .init_irq = netx_init_irq,
185 .timer = &netx_timer,
186 .init_machine = nxeb500hmi_init,
187 MACHINE_END
188