Merge master.kernel.org:/home/rmk/linux-2.6-arm
[linux-2.6.git] / arch / arm / mach-omap1 / board-osk.c
1 /*
2  * linux/arch/arm/mach-omap1/board-osk.c
3  *
4  * Board specific init for OMAP5912 OSK
5  *
6  * Written by Dirk Behme <dirk.behme@de.bosch.com>
7  *
8  * This program is free software; you can redistribute it and/or modify it
9  * under the terms of the GNU General Public License as published by the
10  * Free Software Foundation; either version 2 of the License, or (at your
11  * option) any later version.
12  *
13  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
14  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
16  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
19  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23  *
24  * You should have received a copy of the  GNU General Public License along
25  * with this program; if not, write  to the Free Software Foundation, Inc.,
26  * 675 Mass Ave, Cambridge, MA 02139, USA.
27  */
28
29 #include <linux/kernel.h>
30 #include <linux/init.h>
31 #include <linux/device.h>
32 #include <linux/interrupt.h>
33
34 #include <linux/mtd/mtd.h>
35 #include <linux/mtd/partitions.h>
36
37 #include <asm/hardware.h>
38 #include <asm/mach-types.h>
39 #include <asm/mach/arch.h>
40 #include <asm/mach/map.h>
41 #include <asm/mach/flash.h>
42
43 #include <asm/arch/gpio.h>
44 #include <asm/arch/usb.h>
45 #include <asm/arch/mux.h>
46 #include <asm/arch/tc.h>
47 #include <asm/arch/common.h>
48
49 static int __initdata osk_serial_ports[OMAP_MAX_NR_PORTS] = {1, 0, 0};
50
51 static struct mtd_partition osk_partitions[] = {
52         /* bootloader (U-Boot, etc) in first sector */
53         {
54               .name             = "bootloader",
55               .offset           = 0,
56               .size             = SZ_128K,
57               .mask_flags       = MTD_WRITEABLE, /* force read-only */
58         },
59         /* bootloader params in the next sector */
60         {
61               .name             = "params",
62               .offset           = MTDPART_OFS_APPEND,
63               .size             = SZ_128K,
64               .mask_flags       = 0,
65         }, {
66               .name             = "kernel",
67               .offset           = MTDPART_OFS_APPEND,
68               .size             = SZ_2M,
69               .mask_flags       = 0
70         }, {
71               .name             = "filesystem",
72               .offset           = MTDPART_OFS_APPEND,
73               .size             = MTDPART_SIZ_FULL,
74               .mask_flags       = 0
75         }
76 };
77
78 static struct flash_platform_data osk_flash_data = {
79         .map_name       = "cfi_probe",
80         .width          = 2,
81         .parts          = osk_partitions,
82         .nr_parts       = ARRAY_SIZE(osk_partitions),
83 };
84
85 static struct resource osk_flash_resource = {
86         /* this is on CS3, wherever it's mapped */
87         .flags          = IORESOURCE_MEM,
88 };
89
90 static struct platform_device osk5912_flash_device = {
91         .name           = "omapflash",
92         .id             = 0,
93         .dev            = {
94                 .platform_data  = &osk_flash_data,
95         },
96         .num_resources  = 1,
97         .resource       = &osk_flash_resource,
98 };
99
100 static struct resource osk5912_smc91x_resources[] = {
101         [0] = {
102                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
103                 .end    = OMAP_OSK_ETHR_START + 0xf,
104                 .flags  = IORESOURCE_MEM,
105         },
106         [1] = {
107                 .start  = OMAP_GPIO_IRQ(0),
108                 .end    = OMAP_GPIO_IRQ(0),
109                 .flags  = IORESOURCE_IRQ,
110         },
111 };
112
113 static struct platform_device osk5912_smc91x_device = {
114         .name           = "smc91x",
115         .id             = -1,
116         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
117         .resource       = osk5912_smc91x_resources,
118 };
119
120 static struct resource osk5912_cf_resources[] = {
121         [0] = {
122                 .start  = OMAP_GPIO_IRQ(62),
123                 .end    = OMAP_GPIO_IRQ(62),
124                 .flags  = IORESOURCE_IRQ,
125         },
126 };
127
128 static struct platform_device osk5912_cf_device = {
129         .name           = "omap_cf",
130         .id             = -1,
131         .dev = {
132                 .platform_data  = (void *) 2 /* CS2 */,
133         },
134         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
135         .resource       = osk5912_cf_resources,
136 };
137
138 static struct platform_device osk5912_mcbsp1_device = {
139         .name           = "omap_mcbsp",
140         .id             = 1,
141 };
142
143 static struct platform_device *osk5912_devices[] __initdata = {
144         &osk5912_flash_device,
145         &osk5912_smc91x_device,
146         &osk5912_cf_device,
147         &osk5912_mcbsp1_device,
148 };
149
150 static void __init osk_init_smc91x(void)
151 {
152         if ((omap_request_gpio(0)) < 0) {
153                 printk("Error requesting gpio 0 for smc91x irq\n");
154                 return;
155         }
156
157         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
158         EMIFS_CCS(1) |= 0x2;
159 }
160
161 static void __init osk_init_cf(void)
162 {
163         omap_cfg_reg(M7_1610_GPIO62);
164         if ((omap_request_gpio(62)) < 0) {
165                 printk("Error requesting gpio 62 for CF irq\n");
166                 return;
167         }
168         /* the CF I/O IRQ is really active-low */
169         set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
170 }
171
172 static void __init osk_init_irq(void)
173 {
174         omap_init_irq();
175         omap_gpio_init();
176         osk_init_smc91x();
177         osk_init_cf();
178 }
179
180 static struct omap_usb_config osk_usb_config __initdata = {
181         /* has usb host connector (A) ... for development it can also
182          * be used, with a NONSTANDARD gender-bending cable/dongle, as
183          * a peripheral.
184          */
185 #ifdef  CONFIG_USB_GADGET_OMAP
186         .register_dev   = 1,
187         .hmc_mode       = 0,
188 #else
189         .register_host  = 1,
190         .hmc_mode       = 16,
191         .rwc            = 1,
192 #endif
193         .pins[0]        = 2,
194 };
195
196 static struct omap_board_config_kernel osk_config[] = {
197         { OMAP_TAG_USB,           &osk_usb_config },
198 };
199
200 #ifdef  CONFIG_OMAP_OSK_MISTRAL
201
202 #ifdef  CONFIG_PM
203 static irqreturn_t
204 osk_mistral_wake_interrupt(int irq, void *ignored, struct pt_regs *regs)
205 {
206         return IRQ_HANDLED;
207 }
208 #endif
209
210 static void __init osk_mistral_init(void)
211 {
212         /* FIXME here's where to feed in framebuffer, touchpad, and
213          * keyboard setup ...  not in the drivers for those devices!
214          *
215          * NOTE:  we could actually tell if there's a Mistral board
216          * attached, e.g. by trying to read something from the ads7846.
217          * But this is too early for that...
218          */
219
220         /* the sideways button (SW1) is for use as a "wakeup" button */
221         omap_cfg_reg(N15_1610_MPUIO2);
222         if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
223                 int ret = 0;
224                 omap_set_gpio_direction(OMAP_MPUIO(2), 1);
225                 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
226 #ifdef  CONFIG_PM
227                 /* share the IRQ in case someone wants to use the
228                  * button for more than wakeup from system sleep.
229                  */
230                 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
231                                 &osk_mistral_wake_interrupt,
232                                 SA_SHIRQ, "mistral_wakeup",
233                                 &osk_mistral_wake_interrupt);
234                 if (ret != 0) {
235                         omap_free_gpio(OMAP_MPUIO(2));
236                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
237                                 ret);
238                 } else
239                         enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
240 #endif
241         } else
242                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
243 }
244 #else
245 static void __init osk_mistral_init(void) { }
246 #endif
247
248 static void __init osk_init(void)
249 {
250         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
251         osk_flash_resource.end += SZ_32M - 1;
252         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
253         omap_board_config = osk_config;
254         omap_board_config_size = ARRAY_SIZE(osk_config);
255         USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
256
257         osk_mistral_init();
258 }
259
260 static void __init osk_map_io(void)
261 {
262         omap_map_common_io();
263         omap_serial_init(osk_serial_ports);
264 }
265
266 MACHINE_START(OMAP_OSK, "TI-OSK")
267         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
268         .phys_ram       = 0x10000000,
269         .phys_io        = 0xfff00000,
270         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
271         .boot_params    = 0x10000100,
272         .map_io         = osk_map_io,
273         .init_irq       = osk_init_irq,
274         .init_machine   = osk_init,
275         .timer          = &omap_timer,
276 MACHINE_END