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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 .engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST,
80 .ecc_placement = NAND_ECC_PLACEMENT_INTERLEAVED,
81 .ecc_bits = 4,
82 .bbt_options = NAND_BBT_USE_FLASH,
83};
84
85static struct resource davinci_nand_resources[] = {
86 {
87 .start = DM355_ASYNC_EMIF_DATA_CE0_BASE,
88 .end = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
89 .flags = IORESOURCE_MEM,
90 }, {
91 .start = DM355_ASYNC_EMIF_CONTROL_BASE,
92 .end = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
93 .flags = IORESOURCE_MEM,
94 },
95};
96
97static struct platform_device davinci_nand_device = {
98 .name = "davinci_nand",
99 .id = 0,
100
101 .num_resources = ARRAY_SIZE(davinci_nand_resources),
102 .resource = davinci_nand_resources,
103
104 .dev = {
105 .platform_data = &davinci_nand_data,
106 },
107};
108
109static struct davinci_i2c_platform_data i2c_pdata = {
110 .bus_freq = 400 ,
111 .bus_delay = 0 ,
112};
113
114static int leopard_mmc_gpio = -EINVAL;
115
116static void dm355leopard_mmcsd_gpios(unsigned gpio)
117{
118 gpio_request(gpio + 0, "mmc0_ro");
119 gpio_request(gpio + 1, "mmc0_cd");
120 gpio_request(gpio + 2, "mmc1_ro");
121 gpio_request(gpio + 3, "mmc1_cd");
122
123
124
125
126
127 leopard_mmc_gpio = gpio;
128}
129
130static struct i2c_board_info dm355leopard_i2c_info[] = {
131 { I2C_BOARD_INFO("dm355leopard_msp", 0x25),
132 .platform_data = dm355leopard_mmcsd_gpios,
133 },
134
135
136};
137
138static void __init leopard_init_i2c(void)
139{
140 davinci_init_i2c(&i2c_pdata);
141
142 gpio_request(5, "dm355leopard_msp");
143 gpio_direction_input(5);
144 dm355leopard_i2c_info[0].irq = gpio_to_irq(5);
145
146 i2c_register_board_info(1, dm355leopard_i2c_info,
147 ARRAY_SIZE(dm355leopard_i2c_info));
148}
149
150static struct resource dm355leopard_dm9000_rsrc[] = {
151 {
152
153 .start = 0x04000000,
154 .end = 0x04000001,
155 .flags = IORESOURCE_MEM,
156 }, {
157
158 .start = 0x04000016,
159 .end = 0x04000017,
160 .flags = IORESOURCE_MEM,
161 }, {
162 .flags = IORESOURCE_IRQ
163 | IORESOURCE_IRQ_HIGHEDGE ,
164 },
165};
166
167static struct platform_device dm355leopard_dm9000 = {
168 .name = "dm9000",
169 .id = -1,
170 .resource = dm355leopard_dm9000_rsrc,
171 .num_resources = ARRAY_SIZE(dm355leopard_dm9000_rsrc),
172};
173
174static struct platform_device *davinci_leopard_devices[] __initdata = {
175 &dm355leopard_dm9000,
176 &davinci_nand_device,
177};
178
179static void __init dm355_leopard_map_io(void)
180{
181 dm355_init();
182}
183
184static int dm355leopard_mmc_get_cd(int module)
185{
186 if (!gpio_is_valid(leopard_mmc_gpio))
187 return -ENXIO;
188
189 return !gpio_get_value_cansleep(leopard_mmc_gpio + 2 * module + 1);
190}
191
192static int dm355leopard_mmc_get_ro(int module)
193{
194 if (!gpio_is_valid(leopard_mmc_gpio))
195 return -ENXIO;
196
197 return gpio_get_value_cansleep(leopard_mmc_gpio + 2 * module + 0);
198}
199
200static struct davinci_mmc_config dm355leopard_mmc_config = {
201 .get_cd = dm355leopard_mmc_get_cd,
202 .get_ro = dm355leopard_mmc_get_ro,
203 .wires = 4,
204 .max_freq = 50000000,
205 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
206};
207
208
209
210
211
212
213#define USB_ID_VALUE 1
214
215static struct spi_eeprom at25640a = {
216 .byte_len = SZ_64K / 8,
217 .name = "at25640a",
218 .page_size = 32,
219 .flags = EE_ADDR2,
220};
221
222static const struct spi_board_info dm355_leopard_spi_info[] __initconst = {
223 {
224 .modalias = "at25",
225 .platform_data = &at25640a,
226 .max_speed_hz = 10 * 1000 * 1000,
227 .bus_num = 0,
228 .chip_select = 0,
229 .mode = SPI_MODE_0,
230 },
231};
232
233static __init void dm355_leopard_init(void)
234{
235 struct clk *aemif;
236 int ret;
237
238 dm355_register_clocks();
239
240 ret = dm355_gpio_register();
241 if (ret)
242 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
243
244 gpio_request(9, "dm9000");
245 gpio_direction_input(9);
246 dm355leopard_dm9000_rsrc[2].start = gpio_to_irq(9);
247
248 aemif = clk_get(&dm355leopard_dm9000.dev, "aemif");
249 if (!WARN(IS_ERR(aemif), "unable to get AEMIF clock\n"))
250 clk_prepare_enable(aemif);
251
252 platform_add_devices(davinci_leopard_devices,
253 ARRAY_SIZE(davinci_leopard_devices));
254 leopard_init_i2c();
255 davinci_serial_init(dm355_serial_device);
256
257
258
259
260
261
262 gpio_request(2, "usb_id_toggle");
263 gpio_direction_output(2, USB_ID_VALUE);
264
265 davinci_setup_usb(1000, 8);
266
267 davinci_setup_mmc(0, &dm355leopard_mmc_config);
268 davinci_setup_mmc(1, &dm355leopard_mmc_config);
269
270 dm355_init_spi0(BIT(0), dm355_leopard_spi_info,
271 ARRAY_SIZE(dm355_leopard_spi_info));
272}
273
274MACHINE_START(DM355_LEOPARD, "DaVinci DM355 leopard")
275 .atag_offset = 0x100,
276 .map_io = dm355_leopard_map_io,
277 .init_irq = dm355_init_irq,
278 .init_time = dm355_init_time,
279 .init_machine = dm355_leopard_init,
280 .init_late = davinci_init_late,
281 .dma_zone_size = SZ_128M,
282MACHINE_END
283
