Merge branch 'for-rmk/samsung6' of git://git.fluff.org/bjdooks/linux into devel-stable
[linux-2.6.git] / arch / arm / mach-mx3 / mach-mx31lite.c
1 /*
2  *  Copyright (C) 2000 Deep Blue Solutions Ltd
3  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
4  *  Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
5  *  Copyright (C) 2009 Daniel Mack <daniel@caiaq.de>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20  */
21
22 #include <linux/types.h>
23 #include <linux/init.h>
24 #include <linux/kernel.h>
25 #include <linux/memory.h>
26 #include <linux/platform_device.h>
27 #include <linux/gpio.h>
28 #include <linux/smsc911x.h>
29 #include <linux/mfd/mc13783.h>
30 #include <linux/spi/spi.h>
31 #include <linux/usb/otg.h>
32 #include <linux/usb/ulpi.h>
33 #include <linux/mtd/physmap.h>
34
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/time.h>
38 #include <asm/mach/map.h>
39 #include <asm/page.h>
40 #include <asm/setup.h>
41
42 #include <mach/hardware.h>
43 #include <mach/common.h>
44 #include <mach/board-mx31lite.h>
45 #include <mach/imx-uart.h>
46 #include <mach/iomux-mx3.h>
47 #include <mach/irqs.h>
48 #include <mach/mxc_nand.h>
49 #include <mach/spi.h>
50 #include <mach/mxc_ehci.h>
51 #include <mach/ulpi.h>
52
53 #include "devices.h"
54
55 /*
56  * This file contains the module-specific initialization routines.
57  */
58
59 static unsigned int mx31lite_pins[] = {
60         /* LAN9117 IRQ pin */
61         IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO),
62         /* SPI 1 */
63         MX31_PIN_CSPI2_SCLK__SCLK,
64         MX31_PIN_CSPI2_MOSI__MOSI,
65         MX31_PIN_CSPI2_MISO__MISO,
66         MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
67         MX31_PIN_CSPI2_SS0__SS0,
68         MX31_PIN_CSPI2_SS1__SS1,
69         MX31_PIN_CSPI2_SS2__SS2,
70 };
71
72 static struct mxc_nand_platform_data mx31lite_nand_board_info = {
73         .width = 1,
74         .hw_ecc = 1,
75 };
76
77 static struct smsc911x_platform_config smsc911x_config = {
78         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
79         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
80         .flags          = SMSC911X_USE_16BIT,
81 };
82
83 static struct resource smsc911x_resources[] = {
84         {
85                 .start          = MX31_CS4_BASE_ADDR,
86                 .end            = MX31_CS4_BASE_ADDR + 0x100,
87                 .flags          = IORESOURCE_MEM,
88         }, {
89                 .start          = IOMUX_TO_IRQ(MX31_PIN_SFS6),
90                 .end            = IOMUX_TO_IRQ(MX31_PIN_SFS6),
91                 .flags          = IORESOURCE_IRQ,
92         },
93 };
94
95 static struct platform_device smsc911x_device = {
96         .name           = "smsc911x",
97         .id             = -1,
98         .num_resources  = ARRAY_SIZE(smsc911x_resources),
99         .resource       = smsc911x_resources,
100         .dev            = {
101                 .platform_data = &smsc911x_config,
102         },
103 };
104
105 /*
106  * SPI
107  *
108  * The MC13783 is the only hard-wired SPI device on the module.
109  */
110
111 static int spi_internal_chipselect[] = {
112         MXC_SPI_CS(0),
113 };
114
115 static struct spi_imx_master spi1_pdata = {
116         .chipselect     = spi_internal_chipselect,
117         .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
118 };
119
120 static struct mc13783_platform_data mc13783_pdata __initdata = {
121         .flags  = MC13783_USE_RTC |
122                   MC13783_USE_REGULATOR,
123 };
124
125 static struct spi_board_info mc13783_spi_dev __initdata = {
126         .modalias       = "mc13783",
127         .max_speed_hz   = 1000000,
128         .bus_num        = 1,
129         .chip_select    = 0,
130         .platform_data  = &mc13783_pdata,
131         .irq            = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
132 };
133
134 /*
135  * USB
136  */
137
138 #if defined(CONFIG_USB_ULPI)
139 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
140                         PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
141
142 static int usbh2_init(struct platform_device *pdev)
143 {
144         int pins[] = {
145                 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
146                 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
147                 MX31_PIN_USBH2_CLK__USBH2_CLK,
148                 MX31_PIN_USBH2_DIR__USBH2_DIR,
149                 MX31_PIN_USBH2_NXT__USBH2_NXT,
150                 MX31_PIN_USBH2_STP__USBH2_STP,
151         };
152
153         mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
154
155         mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
156         mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
157         mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
158         mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
159         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
160         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
161         mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
162         mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
163         mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
164         mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
165         mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
166         mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
167
168         mxc_iomux_set_gpr(MUX_PGP_UH2, true);
169
170         /* chip select */
171         mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
172                                 "USBH2_CS");
173         gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
174         gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
175
176         return 0;
177 }
178
179 static struct mxc_usbh_platform_data usbh2_pdata = {
180         .init   = usbh2_init,
181         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
182         .flags  = MXC_EHCI_POWER_PINS_ENABLED,
183 };
184 #endif
185
186 /*
187  * NOR flash
188  */
189
190 static struct physmap_flash_data nor_flash_data = {
191         .width  = 2,
192 };
193
194 static struct resource nor_flash_resource = {
195         .start  = 0xa0000000,
196         .end    = 0xa1ffffff,
197         .flags  = IORESOURCE_MEM,
198 };
199
200 static struct platform_device physmap_flash_device = {
201         .name   = "physmap-flash",
202         .id     = 0,
203         .dev    = {
204                 .platform_data  = &nor_flash_data,
205         },
206         .resource = &nor_flash_resource,
207         .num_resources = 1,
208 };
209
210
211
212 /*
213  * This structure defines the MX31 memory map.
214  */
215 static struct map_desc mx31lite_io_desc[] __initdata = {
216         {
217                 .virtual = MX31_CS4_BASE_ADDR_VIRT,
218                 .pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
219                 .length = MX31_CS4_SIZE,
220                 .type = MT_DEVICE
221         }
222 };
223
224 /*
225  * Set up static virtual mappings.
226  */
227 void __init mx31lite_map_io(void)
228 {
229         mx31_map_io();
230         iotable_init(mx31lite_io_desc, ARRAY_SIZE(mx31lite_io_desc));
231 }
232
233 static int mx31lite_baseboard;
234 core_param(mx31lite_baseboard, mx31lite_baseboard, int, 0444);
235
236 static void __init mxc_board_init(void)
237 {
238         int ret;
239
240         switch (mx31lite_baseboard) {
241         case MX31LITE_NOBOARD:
242                 break;
243         case MX31LITE_DB:
244                 mx31lite_db_init();
245                 break;
246         default:
247                 printk(KERN_ERR "Illegal mx31lite_baseboard type %d\n",
248                                 mx31lite_baseboard);
249         }
250
251         mxc_iomux_setup_multiple_pins(mx31lite_pins, ARRAY_SIZE(mx31lite_pins),
252                                       "mx31lite");
253
254         /* NOR and NAND flash */
255         platform_device_register(&physmap_flash_device);
256         mxc_register_device(&mxc_nand_device, &mx31lite_nand_board_info);
257
258         mxc_register_device(&mxc_spi_device1, &spi1_pdata);
259         spi_register_board_info(&mc13783_spi_dev, 1);
260
261 #if defined(CONFIG_USB_ULPI)
262         /* USB */
263         usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
264                                 USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
265
266         mxc_register_device(&mxc_usbh2, &usbh2_pdata);
267 #endif
268
269         /* SMSC9117 IRQ pin */
270         ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");
271         if (ret)
272                 pr_warning("could not get LAN irq gpio\n");
273         else {
274                 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_SFS6));
275                 platform_device_register(&smsc911x_device);
276         }
277 }
278
279 static void __init mx31lite_timer_init(void)
280 {
281         mx31_clocks_init(26000000);
282 }
283
284 struct sys_timer mx31lite_timer = {
285         .init   = mx31lite_timer_init,
286 };
287
288 MACHINE_START(MX31LITE, "LogicPD i.MX31 SOM")
289         /* Maintainer: Freescale Semiconductor, Inc. */
290         .phys_io        = MX31_AIPS1_BASE_ADDR,
291         .io_pg_offst    = (MX31_AIPS1_BASE_ADDR_VIRT >> 18) & 0xfffc,
292         .boot_params    = MX3x_PHYS_OFFSET + 0x100,
293         .map_io         = mx31lite_map_io,
294         .init_irq       = mx31_init_irq,
295         .init_machine   = mxc_board_init,
296         .timer          = &mx31lite_timer,
297 MACHINE_END