Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
[pandora-kernel.git] / arch / arm / mach-mx2 / pcm038.c
1 /*
2  * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
3  * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License
7  * as published by the Free Software Foundation; either version 2
8  * of the License, or (at your option) any later version.
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
17  * MA 02110-1301, USA.
18  */
19
20 #include <linux/i2c.h>
21 #include <linux/i2c/at24.h>
22 #include <linux/io.h>
23 #include <linux/mtd/plat-ram.h>
24 #include <linux/mtd/physmap.h>
25 #include <linux/platform_device.h>
26
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/time.h>
30
31 #include <mach/board-pcm038.h>
32 #include <mach/common.h>
33 #include <mach/hardware.h>
34 #include <mach/i2c.h>
35 #include <mach/iomux.h>
36 #include <mach/imx-uart.h>
37 #include <mach/mxc_nand.h>
38
39 #include "devices.h"
40
41 static int pcm038_pins[] = {
42         /* UART1 */
43         PE12_PF_UART1_TXD,
44         PE13_PF_UART1_RXD,
45         PE14_PF_UART1_CTS,
46         PE15_PF_UART1_RTS,
47         /* UART2 */
48         PE3_PF_UART2_CTS,
49         PE4_PF_UART2_RTS,
50         PE6_PF_UART2_TXD,
51         PE7_PF_UART2_RXD,
52         /* UART3 */
53         PE8_PF_UART3_TXD,
54         PE9_PF_UART3_RXD,
55         PE10_PF_UART3_CTS,
56         PE11_PF_UART3_RTS,
57         /* FEC */
58         PD0_AIN_FEC_TXD0,
59         PD1_AIN_FEC_TXD1,
60         PD2_AIN_FEC_TXD2,
61         PD3_AIN_FEC_TXD3,
62         PD4_AOUT_FEC_RX_ER,
63         PD5_AOUT_FEC_RXD1,
64         PD6_AOUT_FEC_RXD2,
65         PD7_AOUT_FEC_RXD3,
66         PD8_AF_FEC_MDIO,
67         PD9_AIN_FEC_MDC,
68         PD10_AOUT_FEC_CRS,
69         PD11_AOUT_FEC_TX_CLK,
70         PD12_AOUT_FEC_RXD0,
71         PD13_AOUT_FEC_RX_DV,
72         PD14_AOUT_FEC_RX_CLK,
73         PD15_AOUT_FEC_COL,
74         PD16_AIN_FEC_TX_ER,
75         PF23_AIN_FEC_TX_EN,
76         /* I2C2 */
77         PC5_PF_I2C2_SDA,
78         PC6_PF_I2C2_SCL,
79         /* SPI1 */
80         PD25_PF_CSPI1_RDY,
81         PD27_PF_CSPI1_SS1,
82         PD28_PF_CSPI1_SS0,
83         PD29_PF_CSPI1_SCLK,
84         PD30_PF_CSPI1_MISO,
85         PD31_PF_CSPI1_MOSI,
86         /* SSI1 */
87         PC20_PF_SSI1_FS,
88         PC21_PF_SSI1_RXD,
89         PC22_PF_SSI1_TXD,
90         PC23_PF_SSI1_CLK,
91         /* SSI4 */
92         PC16_PF_SSI4_FS,
93         PC17_PF_SSI4_RXD,
94         PC18_PF_SSI4_TXD,
95         PC19_PF_SSI4_CLK,
96 };
97
98 /*
99  * Phytec's PCM038 comes with 2MiB battery buffered SRAM,
100  * 16 bit width
101  */
102
103 static struct platdata_mtd_ram pcm038_sram_data = {
104         .bankwidth = 2,
105 };
106
107 static struct resource pcm038_sram_resource = {
108         .start = CS1_BASE_ADDR,
109         .end   = CS1_BASE_ADDR + 512 * 1024 - 1,
110         .flags = IORESOURCE_MEM,
111 };
112
113 static struct platform_device pcm038_sram_mtd_device = {
114         .name = "mtd-ram",
115         .id = 0,
116         .dev = {
117                 .platform_data = &pcm038_sram_data,
118         },
119         .num_resources = 1,
120         .resource = &pcm038_sram_resource,
121 };
122
123 /*
124  * Phytec's phyCORE-i.MX27 comes with 32MiB flash,
125  * 16 bit width
126  */
127 static struct physmap_flash_data pcm038_flash_data = {
128         .width = 2,
129 };
130
131 static struct resource pcm038_flash_resource = {
132         .start = 0xc0000000,
133         .end   = 0xc1ffffff,
134         .flags = IORESOURCE_MEM,
135 };
136
137 static struct platform_device pcm038_nor_mtd_device = {
138         .name = "physmap-flash",
139         .id = 0,
140         .dev = {
141                 .platform_data = &pcm038_flash_data,
142         },
143         .num_resources = 1,
144         .resource = &pcm038_flash_resource,
145 };
146
147 static struct imxuart_platform_data uart_pdata[] = {
148         {
149                 .flags = IMXUART_HAVE_RTSCTS,
150         }, {
151                 .flags = IMXUART_HAVE_RTSCTS,
152         }, {
153                 .flags = IMXUART_HAVE_RTSCTS,
154         },
155 };
156
157 static struct mxc_nand_platform_data pcm038_nand_board_info = {
158         .width = 1,
159         .hw_ecc = 1,
160 };
161
162 static struct platform_device *platform_devices[] __initdata = {
163         &pcm038_nor_mtd_device,
164         &mxc_w1_master_device,
165         &mxc_fec_device,
166         &pcm038_sram_mtd_device,
167 };
168
169 /* On pcm038 there's a sram attached to CS1, we enable the chipselect here and
170  * setup other stuffs to access the sram. */
171 static void __init pcm038_init_sram(void)
172 {
173         __raw_writel(0x0000d843, CSCR_U(1));
174         __raw_writel(0x22252521, CSCR_L(1));
175         __raw_writel(0x22220a00, CSCR_A(1));
176 }
177
178 static struct imxi2c_platform_data pcm038_i2c_1_data = {
179         .bitrate = 100000,
180 };
181
182 static struct at24_platform_data board_eeprom = {
183         .byte_len = 4096,
184         .page_size = 32,
185         .flags = AT24_FLAG_ADDR16,
186 };
187
188 static struct i2c_board_info pcm038_i2c_devices[] = {
189         {
190                 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
191                 .platform_data = &board_eeprom,
192         }, {
193                 I2C_BOARD_INFO("pcf8563", 0x51),
194         }, {
195                 I2C_BOARD_INFO("lm75", 0x4a),
196         }
197 };
198
199 static void __init pcm038_init(void)
200 {
201         mxc_gpio_setup_multiple_pins(pcm038_pins, ARRAY_SIZE(pcm038_pins),
202                         "PCM038");
203
204         pcm038_init_sram();
205
206         mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
207         mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
208         mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);
209
210         mxc_gpio_mode(PE16_AF_OWIRE);
211         mxc_register_device(&mxc_nand_device, &pcm038_nand_board_info);
212
213         /* only the i2c master 1 is used on this CPU card */
214         i2c_register_board_info(1, pcm038_i2c_devices,
215                                 ARRAY_SIZE(pcm038_i2c_devices));
216
217         mxc_register_device(&mxc_i2c_device1, &pcm038_i2c_1_data);
218
219         /* PE18 for user-LED D40 */
220         mxc_gpio_mode(GPIO_PORTE | 18 | GPIO_GPIO | GPIO_OUT);
221
222         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
223
224 #ifdef CONFIG_MACH_PCM970_BASEBOARD
225         pcm970_baseboard_init();
226 #endif
227 }
228
229 static void __init pcm038_timer_init(void)
230 {
231         mx27_clocks_init(26000000);
232 }
233
234 static struct sys_timer pcm038_timer = {
235         .init = pcm038_timer_init,
236 };
237
238 MACHINE_START(PCM038, "phyCORE-i.MX27")
239         .phys_io        = AIPI_BASE_ADDR,
240         .io_pg_offst    = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
241         .boot_params    = PHYS_OFFSET + 0x100,
242         .map_io         = mx27_map_io,
243         .init_irq       = mx27_init_irq,
244         .init_machine   = pcm038_init,
245         .timer          = &pcm038_timer,
246 MACHINE_END