Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[pandora-kernel.git] / arch / arm / mach-mx2 / mx27ads.c
1 /*
2  *  Copyright (C) 2000 Deep Blue Solutions Ltd
3  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
4  *  Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
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 as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  */
20
21 #include <linux/platform_device.h>
22 #include <linux/mtd/mtd.h>
23 #include <linux/mtd/map.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/mtd/physmap.h>
26 #include <mach/common.h>
27 #include <mach/hardware.h>
28 #include <asm/mach-types.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/time.h>
31 #include <asm/mach/map.h>
32 #include <mach/gpio.h>
33 #include <mach/imx-uart.h>
34 #include <mach/iomux-mx1-mx2.h>
35 #include <mach/board-mx27ads.h>
36
37 #include "devices.h"
38
39 /* ADS's NOR flash */
40 static struct physmap_flash_data mx27ads_flash_data = {
41         .width = 2,
42 };
43
44 static struct resource mx27ads_flash_resource = {
45         .start = 0xc0000000,
46         .end = 0xc0000000 + 0x02000000 - 1,
47         .flags = IORESOURCE_MEM,
48
49 };
50
51 static struct platform_device mx27ads_nor_mtd_device = {
52         .name = "physmap-flash",
53         .id = 0,
54         .dev = {
55                 .platform_data = &mx27ads_flash_data,
56         },
57         .num_resources = 1,
58         .resource = &mx27ads_flash_resource,
59 };
60
61 static int mxc_uart0_pins[] = {
62         PE12_PF_UART1_TXD,
63         PE13_PF_UART1_RXD,
64         PE14_PF_UART1_CTS,
65         PE15_PF_UART1_RTS
66 };
67
68 static int uart_mxc_port0_init(struct platform_device *pdev)
69 {
70         return mxc_gpio_setup_multiple_pins(mxc_uart0_pins,
71                         ARRAY_SIZE(mxc_uart0_pins),
72                         MXC_GPIO_ALLOC_MODE_NORMAL, "UART0");
73 }
74
75 static int uart_mxc_port0_exit(struct platform_device *pdev)
76 {
77         return mxc_gpio_setup_multiple_pins(mxc_uart0_pins,
78                         ARRAY_SIZE(mxc_uart0_pins),
79                         MXC_GPIO_ALLOC_MODE_RELEASE, "UART0");
80 }
81
82 static int mxc_uart1_pins[] = {
83         PE3_PF_UART2_CTS,
84         PE4_PF_UART2_RTS,
85         PE6_PF_UART2_TXD,
86         PE7_PF_UART2_RXD
87 };
88
89 static int uart_mxc_port1_init(struct platform_device *pdev)
90 {
91         return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
92                         ARRAY_SIZE(mxc_uart1_pins),
93                         MXC_GPIO_ALLOC_MODE_NORMAL, "UART1");
94 }
95
96 static int uart_mxc_port1_exit(struct platform_device *pdev)
97 {
98         return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
99                         ARRAY_SIZE(mxc_uart1_pins),
100                         MXC_GPIO_ALLOC_MODE_RELEASE, "UART1");
101 }
102
103 static int mxc_uart2_pins[] = {
104         PE8_PF_UART3_TXD,
105         PE9_PF_UART3_RXD,
106         PE10_PF_UART3_CTS,
107         PE11_PF_UART3_RTS
108 };
109
110 static int uart_mxc_port2_init(struct platform_device *pdev)
111 {
112         return mxc_gpio_setup_multiple_pins(mxc_uart2_pins,
113                         ARRAY_SIZE(mxc_uart2_pins),
114                         MXC_GPIO_ALLOC_MODE_NORMAL, "UART2");
115 }
116
117 static int uart_mxc_port2_exit(struct platform_device *pdev)
118 {
119         return mxc_gpio_setup_multiple_pins(mxc_uart2_pins,
120                         ARRAY_SIZE(mxc_uart2_pins),
121                         MXC_GPIO_ALLOC_MODE_RELEASE, "UART2");
122 }
123
124 static int mxc_uart3_pins[] = {
125         PB26_AF_UART4_RTS,
126         PB28_AF_UART4_TXD,
127         PB29_AF_UART4_CTS,
128         PB31_AF_UART4_RXD
129 };
130
131 static int uart_mxc_port3_init(struct platform_device *pdev)
132 {
133         return mxc_gpio_setup_multiple_pins(mxc_uart3_pins,
134                         ARRAY_SIZE(mxc_uart3_pins),
135                         MXC_GPIO_ALLOC_MODE_NORMAL, "UART3");
136 }
137
138 static int uart_mxc_port3_exit(struct platform_device *pdev)
139 {
140         return mxc_gpio_setup_multiple_pins(mxc_uart3_pins,
141                         ARRAY_SIZE(mxc_uart3_pins),
142                         MXC_GPIO_ALLOC_MODE_RELEASE, "UART3");
143 }
144
145 static int mxc_uart4_pins[] = {
146         PB18_AF_UART5_TXD,
147         PB19_AF_UART5_RXD,
148         PB20_AF_UART5_CTS,
149         PB21_AF_UART5_RTS
150 };
151
152 static int uart_mxc_port4_init(struct platform_device *pdev)
153 {
154         return mxc_gpio_setup_multiple_pins(mxc_uart4_pins,
155                         ARRAY_SIZE(mxc_uart4_pins),
156                         MXC_GPIO_ALLOC_MODE_NORMAL, "UART4");
157 }
158
159 static int uart_mxc_port4_exit(struct platform_device *pdev)
160 {
161         return mxc_gpio_setup_multiple_pins(mxc_uart4_pins,
162                         ARRAY_SIZE(mxc_uart4_pins),
163                         MXC_GPIO_ALLOC_MODE_RELEASE, "UART4");
164 }
165
166 static int mxc_uart5_pins[] = {
167         PB10_AF_UART6_TXD,
168         PB12_AF_UART6_CTS,
169         PB11_AF_UART6_RXD,
170         PB13_AF_UART6_RTS
171 };
172
173 static int uart_mxc_port5_init(struct platform_device *pdev)
174 {
175         return mxc_gpio_setup_multiple_pins(mxc_uart5_pins,
176                         ARRAY_SIZE(mxc_uart5_pins),
177                         MXC_GPIO_ALLOC_MODE_NORMAL, "UART5");
178 }
179
180 static int uart_mxc_port5_exit(struct platform_device *pdev)
181 {
182         return mxc_gpio_setup_multiple_pins(mxc_uart5_pins,
183                         ARRAY_SIZE(mxc_uart5_pins),
184                         MXC_GPIO_ALLOC_MODE_RELEASE, "UART5");
185 }
186
187 static struct platform_device *platform_devices[] __initdata = {
188         &mx27ads_nor_mtd_device,
189 };
190
191 static int mxc_fec_pins[] = {
192         PD0_AIN_FEC_TXD0,
193         PD1_AIN_FEC_TXD1,
194         PD2_AIN_FEC_TXD2,
195         PD3_AIN_FEC_TXD3,
196         PD4_AOUT_FEC_RX_ER,
197         PD5_AOUT_FEC_RXD1,
198         PD6_AOUT_FEC_RXD2,
199         PD7_AOUT_FEC_RXD3,
200         PD8_AF_FEC_MDIO,
201         PD9_AIN_FEC_MDC,
202         PD10_AOUT_FEC_CRS,
203         PD11_AOUT_FEC_TX_CLK,
204         PD12_AOUT_FEC_RXD0,
205         PD13_AOUT_FEC_RX_DV,
206         PD14_AOUT_FEC_CLR,
207         PD15_AOUT_FEC_COL,
208         PD16_AIN_FEC_TX_ER,
209         PF23_AIN_FEC_TX_EN
210 };
211
212 static void gpio_fec_active(void)
213 {
214         mxc_gpio_setup_multiple_pins(mxc_fec_pins,
215                         ARRAY_SIZE(mxc_fec_pins),
216                         MXC_GPIO_ALLOC_MODE_NORMAL, "FEC");
217 }
218
219 static void gpio_fec_inactive(void)
220 {
221         mxc_gpio_setup_multiple_pins(mxc_fec_pins,
222                         ARRAY_SIZE(mxc_fec_pins),
223                         MXC_GPIO_ALLOC_MODE_RELEASE, "FEC");
224 }
225
226 static struct imxuart_platform_data uart_pdata[] = {
227         {
228                 .init = uart_mxc_port0_init,
229                 .exit = uart_mxc_port0_exit,
230                 .flags = IMXUART_HAVE_RTSCTS,
231         }, {
232                 .init = uart_mxc_port1_init,
233                 .exit = uart_mxc_port1_exit,
234                 .flags = IMXUART_HAVE_RTSCTS,
235         }, {
236                 .init = uart_mxc_port2_init,
237                 .exit = uart_mxc_port2_exit,
238                 .flags = IMXUART_HAVE_RTSCTS,
239         }, {
240                 .init = uart_mxc_port3_init,
241                 .exit = uart_mxc_port3_exit,
242                 .flags = IMXUART_HAVE_RTSCTS,
243         }, {
244                 .init = uart_mxc_port4_init,
245                 .exit = uart_mxc_port4_exit,
246                 .flags = IMXUART_HAVE_RTSCTS,
247         }, {
248                 .init = uart_mxc_port5_init,
249                 .exit = uart_mxc_port5_exit,
250                 .flags = IMXUART_HAVE_RTSCTS,
251         },
252 };
253
254 static void __init mx27ads_board_init(void)
255 {
256         gpio_fec_active();
257
258         mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
259         mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
260         mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);
261         mxc_register_device(&mxc_uart_device3, &uart_pdata[3]);
262         mxc_register_device(&mxc_uart_device4, &uart_pdata[4]);
263         mxc_register_device(&mxc_uart_device5, &uart_pdata[5]);
264
265         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
266 }
267
268 static void __init mx27ads_timer_init(void)
269 {
270         unsigned long fref = 26000000;
271
272         if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
273                 fref = 27000000;
274
275         mxc_clocks_init(fref);
276         mxc_timer_init("gpt_clk.0");
277 }
278
279 struct sys_timer mx27ads_timer = {
280         .init   = mx27ads_timer_init,
281 };
282
283 static struct map_desc mx27ads_io_desc[] __initdata = {
284         {
285                 .virtual = PBC_BASE_ADDRESS,
286                 .pfn = __phys_to_pfn(CS4_BASE_ADDR),
287                 .length = SZ_1M,
288                 .type = MT_DEVICE,
289         },
290 };
291
292 void __init mx27ads_map_io(void)
293 {
294         mxc_map_io();
295         iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
296 }
297
298 MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
299         /* maintainer: Freescale Semiconductor, Inc. */
300         .phys_io        = AIPI_BASE_ADDR,
301         .io_pg_offst    = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
302         .boot_params    = PHYS_OFFSET + 0x100,
303         .map_io         = mx27ads_map_io,
304         .init_irq       = mxc_init_irq,
305         .init_machine   = mx27ads_board_init,
306         .timer          = &mx27ads_timer,
307 MACHINE_END
308