[ARM] 3280/1: OMAP: 2/3 Fix low-level io init for omap1 boards
[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/platform_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 struct mtd_partition osk_partitions[] = {
50         /* bootloader (U-Boot, etc) in first sector */
51         {
52               .name             = "bootloader",
53               .offset           = 0,
54               .size             = SZ_128K,
55               .mask_flags       = MTD_WRITEABLE, /* force read-only */
56         },
57         /* bootloader params in the next sector */
58         {
59               .name             = "params",
60               .offset           = MTDPART_OFS_APPEND,
61               .size             = SZ_128K,
62               .mask_flags       = 0,
63         }, {
64               .name             = "kernel",
65               .offset           = MTDPART_OFS_APPEND,
66               .size             = SZ_2M,
67               .mask_flags       = 0
68         }, {
69               .name             = "filesystem",
70               .offset           = MTDPART_OFS_APPEND,
71               .size             = MTDPART_SIZ_FULL,
72               .mask_flags       = 0
73         }
74 };
75
76 static struct flash_platform_data osk_flash_data = {
77         .map_name       = "cfi_probe",
78         .width          = 2,
79         .parts          = osk_partitions,
80         .nr_parts       = ARRAY_SIZE(osk_partitions),
81 };
82
83 static struct resource osk_flash_resource = {
84         /* this is on CS3, wherever it's mapped */
85         .flags          = IORESOURCE_MEM,
86 };
87
88 static struct platform_device osk5912_flash_device = {
89         .name           = "omapflash",
90         .id             = 0,
91         .dev            = {
92                 .platform_data  = &osk_flash_data,
93         },
94         .num_resources  = 1,
95         .resource       = &osk_flash_resource,
96 };
97
98 static struct resource osk5912_smc91x_resources[] = {
99         [0] = {
100                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
101                 .end    = OMAP_OSK_ETHR_START + 0xf,
102                 .flags  = IORESOURCE_MEM,
103         },
104         [1] = {
105                 .start  = OMAP_GPIO_IRQ(0),
106                 .end    = OMAP_GPIO_IRQ(0),
107                 .flags  = IORESOURCE_IRQ,
108         },
109 };
110
111 static struct platform_device osk5912_smc91x_device = {
112         .name           = "smc91x",
113         .id             = -1,
114         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
115         .resource       = osk5912_smc91x_resources,
116 };
117
118 static struct resource osk5912_cf_resources[] = {
119         [0] = {
120                 .start  = OMAP_GPIO_IRQ(62),
121                 .end    = OMAP_GPIO_IRQ(62),
122                 .flags  = IORESOURCE_IRQ,
123         },
124 };
125
126 static struct platform_device osk5912_cf_device = {
127         .name           = "omap_cf",
128         .id             = -1,
129         .dev = {
130                 .platform_data  = (void *) 2 /* CS2 */,
131         },
132         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
133         .resource       = osk5912_cf_resources,
134 };
135
136 static struct platform_device osk5912_mcbsp1_device = {
137         .name           = "omap_mcbsp",
138         .id             = 1,
139 };
140
141 static struct platform_device *osk5912_devices[] __initdata = {
142         &osk5912_flash_device,
143         &osk5912_smc91x_device,
144         &osk5912_cf_device,
145         &osk5912_mcbsp1_device,
146 };
147
148 static void __init osk_init_smc91x(void)
149 {
150         if ((omap_request_gpio(0)) < 0) {
151                 printk("Error requesting gpio 0 for smc91x irq\n");
152                 return;
153         }
154
155         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
156         EMIFS_CCS(1) |= 0x3;
157 }
158
159 static void __init osk_init_cf(void)
160 {
161         omap_cfg_reg(M7_1610_GPIO62);
162         if ((omap_request_gpio(62)) < 0) {
163                 printk("Error requesting gpio 62 for CF irq\n");
164                 return;
165         }
166         /* the CF I/O IRQ is really active-low */
167         set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
168 }
169
170 static void __init osk_init_irq(void)
171 {
172         omap1_init_common_hw();
173         omap_init_irq();
174         omap_gpio_init();
175         osk_init_smc91x();
176         osk_init_cf();
177 }
178
179 static struct omap_usb_config osk_usb_config __initdata = {
180         /* has usb host connector (A) ... for development it can also
181          * be used, with a NONSTANDARD gender-bending cable/dongle, as
182          * a peripheral.
183          */
184 #ifdef  CONFIG_USB_GADGET_OMAP
185         .register_dev   = 1,
186         .hmc_mode       = 0,
187 #else
188         .register_host  = 1,
189         .hmc_mode       = 16,
190         .rwc            = 1,
191 #endif
192         .pins[0]        = 2,
193 };
194
195 static struct omap_uart_config osk_uart_config __initdata = {
196         .enabled_uarts = (1 << 0),
197 };
198
199 static struct omap_lcd_config osk_lcd_config __initdata = {
200         .panel_name     = "osk",
201         .ctrl_name      = "internal",
202 };
203
204 static struct omap_board_config_kernel osk_config[] = {
205         { OMAP_TAG_USB,           &osk_usb_config },
206         { OMAP_TAG_UART,                &osk_uart_config },
207         { OMAP_TAG_LCD,                 &osk_lcd_config },
208 };
209
210 #ifdef  CONFIG_OMAP_OSK_MISTRAL
211
212 #ifdef  CONFIG_PM
213 static irqreturn_t
214 osk_mistral_wake_interrupt(int irq, void *ignored, struct pt_regs *regs)
215 {
216         return IRQ_HANDLED;
217 }
218 #endif
219
220 static void __init osk_mistral_init(void)
221 {
222         /* FIXME here's where to feed in framebuffer, touchpad, and
223          * keyboard setup ...  not in the drivers for those devices!
224          *
225          * NOTE:  we could actually tell if there's a Mistral board
226          * attached, e.g. by trying to read something from the ads7846.
227          * But this is too early for that...
228          */
229
230         /* the sideways button (SW1) is for use as a "wakeup" button */
231         omap_cfg_reg(N15_1610_MPUIO2);
232         if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
233                 int ret = 0;
234                 omap_set_gpio_direction(OMAP_MPUIO(2), 1);
235                 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
236 #ifdef  CONFIG_PM
237                 /* share the IRQ in case someone wants to use the
238                  * button for more than wakeup from system sleep.
239                  */
240                 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
241                                 &osk_mistral_wake_interrupt,
242                                 SA_SHIRQ, "mistral_wakeup",
243                                 &osk_mistral_wake_interrupt);
244                 if (ret != 0) {
245                         omap_free_gpio(OMAP_MPUIO(2));
246                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
247                                 ret);
248                 } else
249                         enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
250 #endif
251         } else
252                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
253 }
254 #else
255 static void __init osk_mistral_init(void) { }
256 #endif
257
258 static void __init osk_init(void)
259 {
260         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
261         osk_flash_resource.end += SZ_32M - 1;
262         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
263         omap_board_config = osk_config;
264         omap_board_config_size = ARRAY_SIZE(osk_config);
265         USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
266
267         omap_serial_init();
268         osk_mistral_init();
269 }
270
271 static void __init osk_map_io(void)
272 {
273         omap1_map_common_io();
274 }
275
276 MACHINE_START(OMAP_OSK, "TI-OSK")
277         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
278         .phys_io        = 0xfff00000,
279         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
280         .boot_params    = 0x10000100,
281         .map_io         = osk_map_io,
282         .init_irq       = osk_init_irq,
283         .init_machine   = osk_init,
284         .timer          = &omap_timer,
285 MACHINE_END