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 <linux/platform_data/eth-netx.h>
33
34#include "generic.h"
35#include "fb.h"
36
37static 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
61static 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
69static 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
93static 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
103static struct netxeth_platform_data eth0_platform_data = {
104	.xcno = 0,
105};
106
107static 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 = &eth0_platform_data,
114	}
115};
116
117static struct netxeth_platform_data eth1_platform_data = {
118	.xcno = 1,
119};
120
121static 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 = &eth1_platform_data,
128	}
129};
130
131static struct resource netx_cf_resources[] = {
132	[0] = {
133		.start	= 0x20000000,
134		.end	= 0x25ffffff,
135		.flags	= IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT,
136	},
137};
138
139static 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
146static 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
159static 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
166static struct platform_device *devices[] __initdata = {
167	&netx_eth0_device,
168	&netx_eth1_device,
169	&netx_cf_device,
170	&netx_uart0_device,
171};
172
173static void __init nxeb500hmi_init(void)
174{
175	netx_fb_init(&clcd_data, &qvga);
176	platform_add_devices(devices, ARRAY_SIZE(devices));
177}
178
179MACHINE_START(NXEB500HMI, "Hilscher nxeb500hmi")
180	.atag_offset	= 0x100,
181	.map_io		= netx_map_io,
182	.init_irq	= netx_init_irq,
183	.init_time	= netx_timer_init,
184	.init_machine	= nxeb500hmi_init,
185	.restart	= netx_restart,
186MACHINE_END
187