Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
[linux-2.6.git] / arch / arm / mach-mx3 / armadillo5x0.c
1 /*
2  * armadillo5x0.c
3  *
4  * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
5  * updates in http://alberdroid.blogspot.com/
6  *
7  * Based on Atmark Techno, Inc. armadillo 500 BSP 2008
8  * Based on mx31ads.c and pcm037.c Great Work!
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
23  * MA 02110-1301, USA.
24  */
25
26 #include <linux/types.h>
27 #include <linux/init.h>
28 #include <linux/clk.h>
29 #include <linux/platform_device.h>
30 #include <linux/gpio.h>
31 #include <linux/smsc911x.h>
32 #include <linux/interrupt.h>
33 #include <linux/irq.h>
34 #include <linux/mtd/physmap.h>
35 #include <linux/io.h>
36
37 #include <mach/hardware.h>
38 #include <asm/mach-types.h>
39 #include <asm/mach/arch.h>
40 #include <asm/mach/time.h>
41 #include <asm/memory.h>
42 #include <asm/mach/map.h>
43
44 #include <mach/common.h>
45 #include <mach/imx-uart.h>
46 #include <mach/iomux-mx3.h>
47 #include <mach/board-armadillo5x0.h>
48 #include <mach/mmc.h>
49 #include <mach/ipu.h>
50 #include <mach/mx3fb.h>
51 #include <mach/mxc_nand.h>
52
53 #include "devices.h"
54 #include "crm_regs.h"
55
56 static int armadillo5x0_pins[] = {
57         /* UART1 */
58         MX31_PIN_CTS1__CTS1,
59         MX31_PIN_RTS1__RTS1,
60         MX31_PIN_TXD1__TXD1,
61         MX31_PIN_RXD1__RXD1,
62         /* UART2 */
63         MX31_PIN_CTS2__CTS2,
64         MX31_PIN_RTS2__RTS2,
65         MX31_PIN_TXD2__TXD2,
66         MX31_PIN_RXD2__RXD2,
67         /* LAN9118_IRQ */
68         IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO),
69         /* SDHC1 */
70         MX31_PIN_SD1_DATA3__SD1_DATA3,
71         MX31_PIN_SD1_DATA2__SD1_DATA2,
72         MX31_PIN_SD1_DATA1__SD1_DATA1,
73         MX31_PIN_SD1_DATA0__SD1_DATA0,
74         MX31_PIN_SD1_CLK__SD1_CLK,
75         MX31_PIN_SD1_CMD__SD1_CMD,
76         /* Framebuffer */
77         MX31_PIN_LD0__LD0,
78         MX31_PIN_LD1__LD1,
79         MX31_PIN_LD2__LD2,
80         MX31_PIN_LD3__LD3,
81         MX31_PIN_LD4__LD4,
82         MX31_PIN_LD5__LD5,
83         MX31_PIN_LD6__LD6,
84         MX31_PIN_LD7__LD7,
85         MX31_PIN_LD8__LD8,
86         MX31_PIN_LD9__LD9,
87         MX31_PIN_LD10__LD10,
88         MX31_PIN_LD11__LD11,
89         MX31_PIN_LD12__LD12,
90         MX31_PIN_LD13__LD13,
91         MX31_PIN_LD14__LD14,
92         MX31_PIN_LD15__LD15,
93         MX31_PIN_LD16__LD16,
94         MX31_PIN_LD17__LD17,
95         MX31_PIN_VSYNC3__VSYNC3,
96         MX31_PIN_HSYNC__HSYNC,
97         MX31_PIN_FPSHIFT__FPSHIFT,
98         MX31_PIN_DRDY0__DRDY0,
99         IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/
100 };
101
102 /*
103  * NAND Flash
104  */
105 static struct mxc_nand_platform_data armadillo5x0_nand_flash_pdata = {
106         .width          = 1,
107         .hw_ecc         = 1,
108 };
109
110 /*
111  * MTD NOR Flash
112  */
113 static struct mtd_partition armadillo5x0_nor_flash_partitions[] = {
114         {
115                 .name           = "nor.bootloader",
116                 .offset         = 0x00000000,
117                 .size           = 4*32*1024,
118         }, {
119                 .name           = "nor.kernel",
120                 .offset         = MTDPART_OFS_APPEND,
121                 .size           = 16*128*1024,
122         }, {
123                 .name           = "nor.userland",
124                 .offset         = MTDPART_OFS_APPEND,
125                 .size           = 110*128*1024,
126         }, {
127                 .name           = "nor.config",
128                 .offset         = MTDPART_OFS_APPEND,
129                 .size           = 1*128*1024,
130         },
131 };
132
133 static struct physmap_flash_data armadillo5x0_nor_flash_pdata = {
134         .width          = 2,
135         .parts          = armadillo5x0_nor_flash_partitions,
136         .nr_parts       = ARRAY_SIZE(armadillo5x0_nor_flash_partitions),
137 };
138
139 static struct resource armadillo5x0_nor_flash_resource = {
140         .flags          = IORESOURCE_MEM,
141         .start          = CS0_BASE_ADDR,
142         .end            = CS0_BASE_ADDR + SZ_64M - 1,
143 };
144
145 static struct platform_device armadillo5x0_nor_flash = {
146         .name                   = "physmap-flash",
147         .id                     = -1,
148         .num_resources          = 1,
149         .resource               = &armadillo5x0_nor_flash_resource,
150 };
151
152 /*
153  * FB support
154  */
155 static const struct fb_videomode fb_modedb[] = {
156         {       /* 640x480 @ 60 Hz */
157                 .name           = "CRT-VGA",
158                 .refresh        = 60,
159                 .xres           = 640,
160                 .yres           = 480,
161                 .pixclock       = 39721,
162                 .left_margin    = 35,
163                 .right_margin   = 115,
164                 .upper_margin   = 43,
165                 .lower_margin   = 1,
166                 .hsync_len      = 10,
167                 .vsync_len      = 1,
168                 .sync           = FB_SYNC_OE_ACT_HIGH,
169                 .vmode          = FB_VMODE_NONINTERLACED,
170                 .flag           = 0,
171         }, {/* 800x600 @ 56 Hz */
172                 .name           = "CRT-SVGA",
173                 .refresh        = 56,
174                 .xres           = 800,
175                 .yres           = 600,
176                 .pixclock       = 30000,
177                 .left_margin    = 30,
178                 .right_margin   = 108,
179                 .upper_margin   = 13,
180                 .lower_margin   = 10,
181                 .hsync_len      = 10,
182                 .vsync_len      = 1,
183                 .sync           = FB_SYNC_OE_ACT_HIGH | FB_SYNC_HOR_HIGH_ACT |
184                                   FB_SYNC_VERT_HIGH_ACT,
185                 .vmode          = FB_VMODE_NONINTERLACED,
186                 .flag           = 0,
187         },
188 };
189
190 static struct ipu_platform_data mx3_ipu_data = {
191         .irq_base = MXC_IPU_IRQ_START,
192 };
193
194 static struct mx3fb_platform_data mx3fb_pdata = {
195         .dma_dev        = &mx3_ipu.dev,
196         .name           = "CRT-VGA",
197         .mode           = fb_modedb,
198         .num_modes      = ARRAY_SIZE(fb_modedb),
199 };
200
201 /*
202  * SDHC 1
203  * MMC support
204  */
205 static int armadillo5x0_sdhc1_get_ro(struct device *dev)
206 {
207         return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
208 }
209
210 static int armadillo5x0_sdhc1_init(struct device *dev,
211                                    irq_handler_t detect_irq, void *data)
212 {
213         int ret;
214         int gpio_det, gpio_wp;
215
216         gpio_det = IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK);
217         gpio_wp = IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B);
218
219         ret = gpio_request(gpio_det, "sdhc-card-detect");
220         if (ret)
221                 return ret;
222
223         gpio_direction_input(gpio_det);
224
225         ret = gpio_request(gpio_wp, "sdhc-write-protect");
226         if (ret)
227                 goto err_gpio_free;
228
229         gpio_direction_input(gpio_wp);
230
231         /* When supported the trigger type have to be BOTH */
232         ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), detect_irq,
233                           IRQF_DISABLED | IRQF_TRIGGER_FALLING,
234                           "sdhc-detect", data);
235
236         if (ret)
237                 goto err_gpio_free_2;
238
239         return 0;
240
241 err_gpio_free_2:
242         gpio_free(gpio_wp);
243
244 err_gpio_free:
245         gpio_free(gpio_det);
246
247         return ret;
248
249 }
250
251 static void armadillo5x0_sdhc1_exit(struct device *dev, void *data)
252 {
253         free_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), data);
254         gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK));
255         gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
256 }
257
258 static struct imxmmc_platform_data sdhc_pdata = {
259         .get_ro = armadillo5x0_sdhc1_get_ro,
260         .init = armadillo5x0_sdhc1_init,
261         .exit = armadillo5x0_sdhc1_exit,
262 };
263
264 /*
265  * SMSC 9118
266  * Network support
267  */
268 static struct resource armadillo5x0_smc911x_resources[] = {
269         {
270                 .start  = CS3_BASE_ADDR,
271                 .end    = CS3_BASE_ADDR + SZ_32M - 1,
272                 .flags  = IORESOURCE_MEM,
273         }, {
274                 .start  = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
275                 .end    = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
276                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
277         },
278 };
279
280 static struct smsc911x_platform_config smsc911x_info = {
281         .flags          = SMSC911X_USE_32BIT,
282         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
283         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
284 };
285
286 static struct platform_device armadillo5x0_smc911x_device = {
287         .name           = "smsc911x",
288         .id             = -1,
289         .num_resources  = ARRAY_SIZE(armadillo5x0_smc911x_resources),
290         .resource       = armadillo5x0_smc911x_resources,
291         .dev            = {
292                 .platform_data = &smsc911x_info,
293         },
294 };
295
296 /* UART device data */
297 static struct imxuart_platform_data uart_pdata = {
298         .flags = IMXUART_HAVE_RTSCTS,
299 };
300
301 static struct platform_device *devices[] __initdata = {
302         &armadillo5x0_smc911x_device,
303 };
304
305 /*
306  * Perform board specific initializations
307  */
308 static void __init armadillo5x0_init(void)
309 {
310         mxc_iomux_setup_multiple_pins(armadillo5x0_pins,
311                         ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0");
312
313         platform_add_devices(devices, ARRAY_SIZE(devices));
314
315         /* Register UART */
316         mxc_register_device(&mxc_uart_device0, &uart_pdata);
317         mxc_register_device(&mxc_uart_device1, &uart_pdata);
318
319         /* SMSC9118 IRQ pin */
320         gpio_direction_input(MX31_PIN_GPIO1_0);
321
322         /* Register SDHC */
323         mxc_register_device(&mxcsdhc_device0, &sdhc_pdata);
324
325         /* Register FB */
326         mxc_register_device(&mx3_ipu, &mx3_ipu_data);
327         mxc_register_device(&mx3_fb, &mx3fb_pdata);
328
329         /* Register NOR Flash */
330         mxc_register_device(&armadillo5x0_nor_flash,
331                             &armadillo5x0_nor_flash_pdata);
332
333         /* Register NAND Flash */
334         mxc_register_device(&mxc_nand_device, &armadillo5x0_nand_flash_pdata);
335
336         /* set NAND page size to 2k if not configured via boot mode pins */
337         __raw_writel(__raw_readl(MXC_CCM_RCSR) | (1 << 30), MXC_CCM_RCSR);
338 }
339
340 static void __init armadillo5x0_timer_init(void)
341 {
342         mx31_clocks_init(26000000);
343 }
344
345 static struct sys_timer armadillo5x0_timer = {
346         .init   = armadillo5x0_timer_init,
347 };
348
349 MACHINE_START(ARMADILLO5X0, "Armadillo-500")
350         /* Maintainer: Alberto Panizzo  */
351         .phys_io        = AIPS1_BASE_ADDR,
352         .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
353         .boot_params    = PHYS_OFFSET + 0x00000100,
354         .map_io         = mx31_map_io,
355         .init_irq       = mx31_init_irq,
356         .timer          = &armadillo5x0_timer,
357         .init_machine   = armadillo5x0_init,
358 MACHINE_END