Merge branches 'gemini' and 'misc' into devel
[pandora-kernel.git] / arch / arm / mach-davinci / board-sffsdr.c
1 /*
2  * Lyrtech SFFSDR board support.
3  *
4  * Copyright (C) 2008 Philip Balister, OpenSDR <philip@opensdr.com>
5  * Copyright (C) 2008 Lyrtech <www.lyrtech.com>
6  *
7  * Based on DV-EVM platform, original copyright follows:
8  *
9  * Copyright (C) 2007 MontaVista Software, Inc.
10  *
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation; either version 2 of the License, or
14  * (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; if not, write to the Free Software
23  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24  */
25
26 #include <linux/init.h>
27 #include <linux/platform_device.h>
28 #include <linux/i2c.h>
29 #include <linux/i2c/at24.h>
30 #include <linux/mtd/mtd.h>
31 #include <linux/mtd/nand.h>
32 #include <linux/mtd/partitions.h>
33
34 #include <asm/mach-types.h>
35 #include <asm/mach/arch.h>
36 #include <asm/mach/flash.h>
37
38 #include <mach/dm644x.h>
39 #include <mach/common.h>
40 #include <mach/i2c.h>
41 #include <mach/serial.h>
42 #include <mach/mux.h>
43 #include <mach/usb.h>
44
45 #define SFFSDR_PHY_MASK         (0x2)
46 #define SFFSDR_MDIO_FREQUENCY   (2200000) /* PHY bus frequency */
47
48 static struct mtd_partition davinci_sffsdr_nandflash_partition[] = {
49         /* U-Boot Environment: Block 0
50          * UBL:                Block 1
51          * U-Boot:             Blocks 6-7 (256 kb)
52          * Integrity Kernel:   Blocks 8-31 (3 Mb)
53          * Integrity Data:     Blocks 100-END
54          */
55         {
56                 .name           = "Linux Kernel",
57                 .offset         = 32 * SZ_128K,
58                 .size           = 16 * SZ_128K, /* 2 Mb */
59                 .mask_flags     = MTD_WRITEABLE, /* Force read-only */
60         },
61         {
62                 .name           = "Linux ROOT",
63                 .offset         = MTDPART_OFS_APPEND,
64                 .size           = 256 * SZ_128K, /* 32 Mb */
65                 .mask_flags     = 0, /* R/W */
66         },
67 };
68
69 static struct flash_platform_data davinci_sffsdr_nandflash_data = {
70         .parts          = davinci_sffsdr_nandflash_partition,
71         .nr_parts       = ARRAY_SIZE(davinci_sffsdr_nandflash_partition),
72 };
73
74 static struct resource davinci_sffsdr_nandflash_resource[] = {
75         {
76                 .start          = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
77                 .end            = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
78                 .flags          = IORESOURCE_MEM,
79         }, {
80                 .start          = DM644X_ASYNC_EMIF_CONTROL_BASE,
81                 .end            = DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
82                 .flags          = IORESOURCE_MEM,
83         },
84 };
85
86 static struct platform_device davinci_sffsdr_nandflash_device = {
87         .name           = "davinci_nand", /* Name of driver */
88         .id             = 0,
89         .dev            = {
90                 .platform_data  = &davinci_sffsdr_nandflash_data,
91         },
92         .num_resources  = ARRAY_SIZE(davinci_sffsdr_nandflash_resource),
93         .resource       = davinci_sffsdr_nandflash_resource,
94 };
95
96 static struct at24_platform_data eeprom_info = {
97         .byte_len       = (64*1024) / 8,
98         .page_size      = 32,
99         .flags          = AT24_FLAG_ADDR16,
100 };
101
102 static struct i2c_board_info __initdata i2c_info[] =  {
103         {
104                 I2C_BOARD_INFO("24lc64", 0x50),
105                 .platform_data  = &eeprom_info,
106         },
107         /* Other I2C devices:
108          * MSP430,  addr 0x23 (not used)
109          * PCA9543, addr 0x70 (setup done by U-Boot)
110          * ADS7828, addr 0x48 (ADC for voltage monitoring.)
111          */
112 };
113
114 static struct davinci_i2c_platform_data i2c_pdata = {
115         .bus_freq       = 20 /* kHz */,
116         .bus_delay      = 100 /* usec */,
117 };
118
119 static void __init sffsdr_init_i2c(void)
120 {
121         davinci_init_i2c(&i2c_pdata);
122         i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
123 }
124
125 static struct platform_device *davinci_sffsdr_devices[] __initdata = {
126         &davinci_sffsdr_nandflash_device,
127 };
128
129 static struct davinci_uart_config uart_config __initdata = {
130         .enabled_uarts = (1 << 0),
131 };
132
133 static void __init davinci_sffsdr_map_io(void)
134 {
135         dm644x_init();
136 }
137
138 static __init void davinci_sffsdr_init(void)
139 {
140         struct davinci_soc_info *soc_info = &davinci_soc_info;
141
142         platform_add_devices(davinci_sffsdr_devices,
143                              ARRAY_SIZE(davinci_sffsdr_devices));
144         sffsdr_init_i2c();
145         davinci_serial_init(&uart_config);
146         soc_info->emac_pdata->phy_mask = SFFSDR_PHY_MASK;
147         soc_info->emac_pdata->mdio_max_freq = SFFSDR_MDIO_FREQUENCY;
148         davinci_setup_usb(0, 0); /* We support only peripheral mode. */
149
150         /* mux VLYNQ pins */
151         davinci_cfg_reg(DM644X_VLYNQEN);
152         davinci_cfg_reg(DM644X_VLYNQWD);
153 }
154
155 MACHINE_START(SFFSDR, "Lyrtech SFFSDR")
156         /* Maintainer: Hugo Villeneuve hugo.villeneuve@lyrtech.com */
157         .phys_io      = IO_PHYS,
158         .io_pg_offst  = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
159         .boot_params  = (DAVINCI_DDR_BASE + 0x100),
160         .map_io       = davinci_sffsdr_map_io,
161         .init_irq     = davinci_irq_init,
162         .timer        = &davinci_timer,
163         .init_machine = davinci_sffsdr_init,
164 MACHINE_END