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/platform_data/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/common.h>
39#include <linux/platform_data/i2c-davinci.h>
40#include <mach/serial.h>
41#include <mach/mux.h>
42#include <linux/platform_data/usb-davinci.h>
43
44#include "davinci.h"
45
46#define SFFSDR_PHY_ID		"davinci_mdio-0:01"
47static struct mtd_partition davinci_sffsdr_nandflash_partition[] = {
48	/* U-Boot Environment: Block 0
49	 * UBL:                Block 1
50	 * U-Boot:             Blocks 6-7 (256 kb)
51	 * Integrity Kernel:   Blocks 8-31 (3 Mb)
52	 * Integrity Data:     Blocks 100-END
53	 */
54	{
55		.name		= "Linux Kernel",
56		.offset		= 32 * SZ_128K,
57		.size		= 16 * SZ_128K, /* 2 Mb */
58		.mask_flags	= MTD_WRITEABLE, /* Force read-only */
59	},
60	{
61		.name		= "Linux ROOT",
62		.offset		= MTDPART_OFS_APPEND,
63		.size		= 256 * SZ_128K, /* 32 Mb */
64		.mask_flags	= 0, /* R/W */
65	},
66};
67
68static struct flash_platform_data davinci_sffsdr_nandflash_data = {
69	.parts		= davinci_sffsdr_nandflash_partition,
70	.nr_parts	= ARRAY_SIZE(davinci_sffsdr_nandflash_partition),
71};
72
73static struct resource davinci_sffsdr_nandflash_resource[] = {
74	{
75		.start		= DM644X_ASYNC_EMIF_DATA_CE0_BASE,
76		.end		= DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
77		.flags		= IORESOURCE_MEM,
78	}, {
79		.start		= DM644X_ASYNC_EMIF_CONTROL_BASE,
80		.end		= DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
81		.flags		= IORESOURCE_MEM,
82	},
83};
84
85static struct platform_device davinci_sffsdr_nandflash_device = {
86	.name		= "davinci_nand", /* Name of driver */
87	.id		= 0,
88	.dev		= {
89		.platform_data	= &davinci_sffsdr_nandflash_data,
90	},
91	.num_resources	= ARRAY_SIZE(davinci_sffsdr_nandflash_resource),
92	.resource	= davinci_sffsdr_nandflash_resource,
93};
94
95static struct at24_platform_data eeprom_info = {
96	.byte_len	= (64*1024) / 8,
97	.page_size	= 32,
98	.flags		= AT24_FLAG_ADDR16,
99};
100
101static struct i2c_board_info __initdata i2c_info[] =  {
102	{
103		I2C_BOARD_INFO("24lc64", 0x50),
104		.platform_data	= &eeprom_info,
105	},
106	/* Other I2C devices:
107	 * MSP430,  addr 0x23 (not used)
108	 * PCA9543, addr 0x70 (setup done by U-Boot)
109	 * ADS7828, addr 0x48 (ADC for voltage monitoring.)
110	 */
111};
112
113static struct davinci_i2c_platform_data i2c_pdata = {
114	.bus_freq	= 20 /* kHz */,
115	.bus_delay	= 100 /* usec */,
116};
117
118static void __init sffsdr_init_i2c(void)
119{
120	davinci_init_i2c(&i2c_pdata);
121	i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
122}
123
124static struct platform_device *davinci_sffsdr_devices[] __initdata = {
125	&davinci_sffsdr_nandflash_device,
126};
127
128static void __init davinci_sffsdr_map_io(void)
129{
130	dm644x_init();
131}
132
133static __init void davinci_sffsdr_init(void)
134{
135	struct davinci_soc_info *soc_info = &davinci_soc_info;
136
137	platform_add_devices(davinci_sffsdr_devices,
138			     ARRAY_SIZE(davinci_sffsdr_devices));
139	sffsdr_init_i2c();
140	davinci_serial_init(dm644x_serial_device);
141	soc_info->emac_pdata->phy_id = SFFSDR_PHY_ID;
142	davinci_setup_usb(0, 0); /* We support only peripheral mode. */
143
144	/* mux VLYNQ pins */
145	davinci_cfg_reg(DM644X_VLYNQEN);
146	davinci_cfg_reg(DM644X_VLYNQWD);
147}
148
149MACHINE_START(SFFSDR, "Lyrtech SFFSDR")
150	.atag_offset  = 0x100,
151	.map_io	      = davinci_sffsdr_map_io,
152	.init_irq     = davinci_irq_init,
153	.init_time	= davinci_timer_init,
154	.init_machine = davinci_sffsdr_init,
155	.init_late	= davinci_init_late,
156	.dma_zone_size	= SZ_128M,
157	.restart	= davinci_restart,
158MACHINE_END
159