1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Lyrtech SFFSDR board support.
4 *
5 * Copyright (C) 2008 Philip Balister, OpenSDR <philip@opensdr.com>
6 * Copyright (C) 2008 Lyrtech <www.lyrtech.com>
7 *
8 * Based on DV-EVM platform, original copyright follows:
9 *
10 * Copyright (C) 2007 MontaVista Software, Inc.
11 */
12
13 #include <linux/init.h>
14 #include <linux/platform_device.h>
15 #include <linux/i2c.h>
16 #include <linux/property.h>
17 #include <linux/mtd/mtd.h>
18 #include <linux/mtd/rawnand.h>
19 #include <linux/mtd/partitions.h>
20
21 #include <asm/mach-types.h>
22 #include <asm/mach/arch.h>
23 #include <asm/mach/flash.h>
24
25 #include <mach/common.h>
26 #include <linux/platform_data/i2c-davinci.h>
27 #include <mach/serial.h>
28 #include <mach/mux.h>
29 #include <linux/platform_data/usb-davinci.h>
30
31 #include "davinci.h"
32
33 #define SFFSDR_PHY_ID "davinci_mdio-0:01"
34 static struct mtd_partition davinci_sffsdr_nandflash_partition[] = {
35 /* U-Boot Environment: Block 0
36 * UBL: Block 1
37 * U-Boot: Blocks 6-7 (256 kb)
38 * Integrity Kernel: Blocks 8-31 (3 Mb)
39 * Integrity Data: Blocks 100-END
40 */
41 {
42 .name = "Linux Kernel",
43 .offset = 32 * SZ_128K,
44 .size = 16 * SZ_128K, /* 2 Mb */
45 .mask_flags = MTD_WRITEABLE, /* Force read-only */
46 },
47 {
48 .name = "Linux ROOT",
49 .offset = MTDPART_OFS_APPEND,
50 .size = 256 * SZ_128K, /* 32 Mb */
51 .mask_flags = 0, /* R/W */
52 },
53 };
54
55 static struct flash_platform_data davinci_sffsdr_nandflash_data = {
56 .parts = davinci_sffsdr_nandflash_partition,
57 .nr_parts = ARRAY_SIZE(davinci_sffsdr_nandflash_partition),
58 };
59
60 static struct resource davinci_sffsdr_nandflash_resource[] = {
61 {
62 .start = DM644X_ASYNC_EMIF_DATA_CE0_BASE,
63 .end = DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
64 .flags = IORESOURCE_MEM,
65 }, {
66 .start = DM644X_ASYNC_EMIF_CONTROL_BASE,
67 .end = DM644X_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
68 .flags = IORESOURCE_MEM,
69 },
70 };
71
72 static struct platform_device davinci_sffsdr_nandflash_device = {
73 .name = "davinci_nand", /* Name of driver */
74 .id = 0,
75 .dev = {
76 .platform_data = &davinci_sffsdr_nandflash_data,
77 },
78 .num_resources = ARRAY_SIZE(davinci_sffsdr_nandflash_resource),
79 .resource = davinci_sffsdr_nandflash_resource,
80 };
81
82 static const struct property_entry eeprom_properties[] = {
83 PROPERTY_ENTRY_U32("pagesize", 32),
84 { }
85 };
86
87 static struct i2c_board_info __initdata i2c_info[] = {
88 {
89 I2C_BOARD_INFO("24c64", 0x50),
90 .properties = eeprom_properties,
91 },
92 /* Other I2C devices:
93 * MSP430, addr 0x23 (not used)
94 * PCA9543, addr 0x70 (setup done by U-Boot)
95 * ADS7828, addr 0x48 (ADC for voltage monitoring.)
96 */
97 };
98
99 static struct davinci_i2c_platform_data i2c_pdata = {
100 .bus_freq = 20 /* kHz */,
101 .bus_delay = 100 /* usec */,
102 };
103
sffsdr_init_i2c(void)104 static void __init sffsdr_init_i2c(void)
105 {
106 davinci_init_i2c(&i2c_pdata);
107 i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
108 }
109
110 static struct platform_device *davinci_sffsdr_devices[] __initdata = {
111 &davinci_sffsdr_nandflash_device,
112 };
113
davinci_sffsdr_map_io(void)114 static void __init davinci_sffsdr_map_io(void)
115 {
116 dm644x_init();
117 }
118
davinci_sffsdr_init(void)119 static __init void davinci_sffsdr_init(void)
120 {
121 struct davinci_soc_info *soc_info = &davinci_soc_info;
122
123 dm644x_register_clocks();
124
125 dm644x_init_devices();
126
127 platform_add_devices(davinci_sffsdr_devices,
128 ARRAY_SIZE(davinci_sffsdr_devices));
129 sffsdr_init_i2c();
130 davinci_serial_init(dm644x_serial_device);
131 soc_info->emac_pdata->phy_id = SFFSDR_PHY_ID;
132 davinci_setup_usb(0, 0); /* We support only peripheral mode. */
133
134 /* mux VLYNQ pins */
135 davinci_cfg_reg(DM644X_VLYNQEN);
136 davinci_cfg_reg(DM644X_VLYNQWD);
137 }
138
139 MACHINE_START(SFFSDR, "Lyrtech SFFSDR")
140 .atag_offset = 0x100,
141 .map_io = davinci_sffsdr_map_io,
142 .init_irq = dm644x_init_irq,
143 .init_time = dm644x_init_time,
144 .init_machine = davinci_sffsdr_init,
145 .init_late = davinci_init_late,
146 .dma_zone_size = SZ_128M,
147 MACHINE_END
148