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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/nand.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 .mask_chipsel = BIT(14),
76 .parts = davinci_nand_partitions,
77 .nr_parts = ARRAY_SIZE(davinci_nand_partitions),
78 .ecc_mode = NAND_ECC_HW_SYNDROME,
79 .ecc_bits = 4,
80 .bbt_options = NAND_BBT_USE_FLASH,
81};
82
83static struct resource davinci_nand_resources[] = {
84 {
85 .start = DM355_ASYNC_EMIF_DATA_CE0_BASE,
86 .end = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
87 .flags = IORESOURCE_MEM,
88 }, {
89 .start = DM355_ASYNC_EMIF_CONTROL_BASE,
90 .end = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
91 .flags = IORESOURCE_MEM,
92 },
93};
94
95static struct platform_device davinci_nand_device = {
96 .name = "davinci_nand",
97 .id = 0,
98
99 .num_resources = ARRAY_SIZE(davinci_nand_resources),
100 .resource = davinci_nand_resources,
101
102 .dev = {
103 .platform_data = &davinci_nand_data,
104 },
105};
106
107static struct davinci_i2c_platform_data i2c_pdata = {
108 .bus_freq = 400 ,
109 .bus_delay = 0 ,
110};
111
112static int leopard_mmc_gpio = -EINVAL;
113
114static void dm355leopard_mmcsd_gpios(unsigned gpio)
115{
116 gpio_request(gpio + 0, "mmc0_ro");
117 gpio_request(gpio + 1, "mmc0_cd");
118 gpio_request(gpio + 2, "mmc1_ro");
119 gpio_request(gpio + 3, "mmc1_cd");
120
121
122
123
124
125 leopard_mmc_gpio = gpio;
126}
127
128static struct i2c_board_info dm355leopard_i2c_info[] = {
129 { I2C_BOARD_INFO("dm355leopard_msp", 0x25),
130 .platform_data = dm355leopard_mmcsd_gpios,
131 },
132
133
134};
135
136static void __init leopard_init_i2c(void)
137{
138 davinci_init_i2c(&i2c_pdata);
139
140 gpio_request(5, "dm355leopard_msp");
141 gpio_direction_input(5);
142 dm355leopard_i2c_info[0].irq = gpio_to_irq(5);
143
144 i2c_register_board_info(1, dm355leopard_i2c_info,
145 ARRAY_SIZE(dm355leopard_i2c_info));
146}
147
148static struct resource dm355leopard_dm9000_rsrc[] = {
149 {
150
151 .start = 0x04000000,
152 .end = 0x04000001,
153 .flags = IORESOURCE_MEM,
154 }, {
155
156 .start = 0x04000016,
157 .end = 0x04000017,
158 .flags = IORESOURCE_MEM,
159 }, {
160 .flags = IORESOURCE_IRQ
161 | IORESOURCE_IRQ_HIGHEDGE ,
162 },
163};
164
165static struct platform_device dm355leopard_dm9000 = {
166 .name = "dm9000",
167 .id = -1,
168 .resource = dm355leopard_dm9000_rsrc,
169 .num_resources = ARRAY_SIZE(dm355leopard_dm9000_rsrc),
170};
171
172static struct platform_device *davinci_leopard_devices[] __initdata = {
173 &dm355leopard_dm9000,
174 &davinci_nand_device,
175};
176
177static void __init dm355_leopard_map_io(void)
178{
179 dm355_init();
180}
181
182static int dm355leopard_mmc_get_cd(int module)
183{
184 if (!gpio_is_valid(leopard_mmc_gpio))
185 return -ENXIO;
186
187 return !gpio_get_value_cansleep(leopard_mmc_gpio + 2 * module + 1);
188}
189
190static int dm355leopard_mmc_get_ro(int module)
191{
192 if (!gpio_is_valid(leopard_mmc_gpio))
193 return -ENXIO;
194
195 return gpio_get_value_cansleep(leopard_mmc_gpio + 2 * module + 0);
196}
197
198static struct davinci_mmc_config dm355leopard_mmc_config = {
199 .get_cd = dm355leopard_mmc_get_cd,
200 .get_ro = dm355leopard_mmc_get_ro,
201 .wires = 4,
202 .max_freq = 50000000,
203 .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
204};
205
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209
210
211#define USB_ID_VALUE 1
212
213static struct spi_eeprom at25640a = {
214 .byte_len = SZ_64K / 8,
215 .name = "at25640a",
216 .page_size = 32,
217 .flags = EE_ADDR2,
218};
219
220static struct spi_board_info dm355_leopard_spi_info[] __initconst = {
221 {
222 .modalias = "at25",
223 .platform_data = &at25640a,
224 .max_speed_hz = 10 * 1000 * 1000,
225 .bus_num = 0,
226 .chip_select = 0,
227 .mode = SPI_MODE_0,
228 },
229};
230
231static __init void dm355_leopard_init(void)
232{
233 struct clk *aemif;
234 int ret;
235
236 ret = dm355_gpio_register();
237 if (ret)
238 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
239
240 gpio_request(9, "dm9000");
241 gpio_direction_input(9);
242 dm355leopard_dm9000_rsrc[2].start = gpio_to_irq(9);
243
244 aemif = clk_get(&dm355leopard_dm9000.dev, "aemif");
245 if (IS_ERR(aemif))
246 WARN("%s: unable to get AEMIF clock\n", __func__);
247 else
248 clk_prepare_enable(aemif);
249
250 platform_add_devices(davinci_leopard_devices,
251 ARRAY_SIZE(davinci_leopard_devices));
252 leopard_init_i2c();
253 davinci_serial_init(dm355_serial_device);
254
255
256
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258
259
260 gpio_request(2, "usb_id_toggle");
261 gpio_direction_output(2, USB_ID_VALUE);
262
263 davinci_setup_usb(1000, 8);
264
265 davinci_setup_mmc(0, &dm355leopard_mmc_config);
266 davinci_setup_mmc(1, &dm355leopard_mmc_config);
267
268 dm355_init_spi0(BIT(0), dm355_leopard_spi_info,
269 ARRAY_SIZE(dm355_leopard_spi_info));
270}
271
272MACHINE_START(DM355_LEOPARD, "DaVinci DM355 leopard")
273 .atag_offset = 0x100,
274 .map_io = dm355_leopard_map_io,
275 .init_irq = davinci_irq_init,
276 .init_time = davinci_timer_init,
277 .init_machine = dm355_leopard_init,
278 .init_late = davinci_init_late,
279 .dma_zone_size = SZ_128M,
280 .restart = davinci_restart,
281MACHINE_END
282
