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10#include <linux/kernel.h>
11#include <linux/init.h>
12#include <linux/err.h>
13#include <linux/platform_device.h>
14#include <linux/mtd/mtd.h>
15#include <linux/mtd/partitions.h>
16#include <linux/mtd/rawnand.h>
17#include <linux/i2c.h>
18#include <linux/gpio.h>
19#include <linux/clk.h>
20#include <linux/spi/spi.h>
21#include <linux/spi/eeprom.h>
22#include <linux/platform_data/i2c-davinci.h>
23#include <linux/platform_data/mmc-davinci.h>
24#include <linux/platform_data/mtd-davinci.h>
25#include <linux/platform_data/usb-davinci.h>
26
27#include <asm/mach-types.h>
28#include <asm/mach/arch.h>
29
30#include <mach/common.h>
31#include <mach/serial.h>
32
33#include "davinci.h"
34
35
36
37
38
39
40#define NAND_BLOCK_SIZE SZ_128K
41
42static struct mtd_partition davinci_nand_partitions[] = {
43 {
44
45 .name = "bootloader",
46 .offset = 0,
47 .size = 15 * NAND_BLOCK_SIZE,
48 .mask_flags = MTD_WRITEABLE,
49 }, {
50
51 .name = "params",
52 .offset = MTDPART_OFS_APPEND,
53 .size = 1 * NAND_BLOCK_SIZE,
54 .mask_flags = 0,
55 }, {
56 .name = "kernel",
57 .offset = MTDPART_OFS_APPEND,
58 .size = SZ_4M,
59 .mask_flags = 0,
60 }, {
61 .name = "filesystem1",
62 .offset = MTDPART_OFS_APPEND,
63 .size = SZ_512M,
64 .mask_flags = 0,
65 }, {
66 .name = "filesystem2",
67 .offset = MTDPART_OFS_APPEND,
68 .size = MTDPART_SIZ_FULL,
69 .mask_flags = 0,
70 }
71
72};
73
74static struct davinci_nand_pdata davinci_nand_data = {
75 .core_chipsel = 0,
76 .mask_chipsel = BIT(14),
77 .parts = davinci_nand_partitions,
78 .nr_parts = ARRAY_SIZE(davinci_nand_partitions),
79 .ecc_mode = NAND_ECC_HW_SYNDROME,
80 .ecc_bits = 4,
81 .bbt_options = NAND_BBT_USE_FLASH,
82};
83
84static struct resource davinci_nand_resources[] = {
85 {
86 .start = DM355_ASYNC_EMIF_DATA_CE0_BASE,
87 .end = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
88 .flags = IORESOURCE_MEM,
89 }, {
90 .start = DM355_ASYNC_EMIF_CONTROL_BASE,
91 .end = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
92 .flags = IORESOURCE_MEM,
93 },
94};
95
96static struct platform_device davinci_nand_device = {
97 .name = "davinci_nand",
98 .id = 0,
99
100 .num_resources = ARRAY_SIZE(davinci_nand_resources),
101 .resource = davinci_nand_resources,
102
103 .dev = {
104 .platform_data = &davinci_nand_data,
105 },
106};
107
108static struct davinci_i2c_platform_data i2c_pdata = {
109 .bus_freq = 400 ,
110 .bus_delay = 0 ,
111};
112
113static int leopard_mmc_gpio = -EINVAL;
114
115static void dm355leopard_mmcsd_gpios(unsigned gpio)
116{
117 gpio_request(gpio + 0, "mmc0_ro");
118 gpio_request(gpio + 1, "mmc0_cd");
119 gpio_request(gpio + 2, "mmc1_ro");
120 gpio_request(gpio + 3, "mmc1_cd");
121
122
123
124
125
126 leopard_mmc_gpio = gpio;
127}
128
129static struct i2c_board_info dm355leopard_i2c_info[] = {
130 { I2C_BOARD_INFO("dm355leopard_msp", 0x25),
131 .platform_data = dm355leopard_mmcsd_gpios,
132 },
133
134
135};
136
137static void __init leopard_init_i2c(void)
138{
139 davinci_init_i2c(&i2c_pdata);
140
141 gpio_request(5, "dm355leopard_msp");
142 gpio_direction_input(5);
143 dm355leopard_i2c_info[0].irq = gpio_to_irq(5);
144
145 i2c_register_board_info(1, dm355leopard_i2c_info,
146 ARRAY_SIZE(dm355leopard_i2c_info));
147}
148
149static struct resource dm355leopard_dm9000_rsrc[] = {
150 {
151
152 .start = 0x04000000,
153 .end = 0x04000001,
154 .flags = IORESOURCE_MEM,
155 }, {
156
157 .start = 0x04000016,
158 .end = 0x04000017,
159 .flags = IORESOURCE_MEM,
160 }, {
161 .flags = IORESOURCE_IRQ
162 | IORESOURCE_IRQ_HIGHEDGE ,
163 },
164};
165
166static struct platform_device dm355leopard_dm9000 = {
167 .name = "dm9000",
168 .id = -1,
169 .resource = dm355leopard_dm9000_rsrc,
170 .num_resources = ARRAY_SIZE(dm355leopard_dm9000_rsrc),
171};
172
173static struct platform_device *davinci_leopard_devices[] __initdata = {
174 &dm355leopard_dm9000,
175 &davinci_nand_device,
176};
177
178static void __init dm355_leopard_map_io(void)
179{
180 dm355_init();
181}
182
183static int dm355leopard_mmc_get_cd(int module)
184{
185 if (!gpio_is_valid(leopard_mmc_gpio))
186 return -ENXIO;
187
188 return !gpio_get_value_cansleep(leopard_mmc_gpio + 2 * module + 1);
189}
190
191static int dm355leopard_mmc_get_ro(int module)
192{
193 if (!gpio_is_valid(leopard_mmc_gpio))
194 return -ENXIO;
195
196 return gpio_get_value_cansleep(leopard_mmc_gpio + 2 * module + 0);
197}
198
199static struct davinci_mmc_config dm355leopard_mmc_config = {
200 .get_cd = dm355leopard_mmc_get_cd,
201 .get_ro = dm355leopard_mmc_get_ro,
202 .wires = 4,
203 .max_freq = 50000000,
204 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
205};
206
207
208
209
210
211
212#define USB_ID_VALUE 1
213
214static struct spi_eeprom at25640a = {
215 .byte_len = SZ_64K / 8,
216 .name = "at25640a",
217 .page_size = 32,
218 .flags = EE_ADDR2,
219};
220
221static const struct spi_board_info dm355_leopard_spi_info[] __initconst = {
222 {
223 .modalias = "at25",
224 .platform_data = &at25640a,
225 .max_speed_hz = 10 * 1000 * 1000,
226 .bus_num = 0,
227 .chip_select = 0,
228 .mode = SPI_MODE_0,
229 },
230};
231
232static __init void dm355_leopard_init(void)
233{
234 struct clk *aemif;
235 int ret;
236
237 dm355_register_clocks();
238
239 ret = dm355_gpio_register();
240 if (ret)
241 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
242
243 gpio_request(9, "dm9000");
244 gpio_direction_input(9);
245 dm355leopard_dm9000_rsrc[2].start = gpio_to_irq(9);
246
247 aemif = clk_get(&dm355leopard_dm9000.dev, "aemif");
248 if (!WARN(IS_ERR(aemif), "unable to get AEMIF clock\n"))
249 clk_prepare_enable(aemif);
250
251 platform_add_devices(davinci_leopard_devices,
252 ARRAY_SIZE(davinci_leopard_devices));
253 leopard_init_i2c();
254 davinci_serial_init(dm355_serial_device);
255
256
257
258
259
260
261 gpio_request(2, "usb_id_toggle");
262 gpio_direction_output(2, USB_ID_VALUE);
263
264 davinci_setup_usb(1000, 8);
265
266 davinci_setup_mmc(0, &dm355leopard_mmc_config);
267 davinci_setup_mmc(1, &dm355leopard_mmc_config);
268
269 dm355_init_spi0(BIT(0), dm355_leopard_spi_info,
270 ARRAY_SIZE(dm355_leopard_spi_info));
271}
272
273MACHINE_START(DM355_LEOPARD, "DaVinci DM355 leopard")
274 .atag_offset = 0x100,
275 .map_io = dm355_leopard_map_io,
276 .init_irq = dm355_init_irq,
277 .init_time = dm355_init_time,
278 .init_machine = dm355_leopard_init,
279 .init_late = davinci_init_late,
280 .dma_zone_size = SZ_128M,
281MACHINE_END
282
