summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-davinci/board-tnetv107x-evm.c
blob: 4f416023d4e2d1d09f8ab1bf18d6e4663066ad8f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
/*
 * Texas Instruments TNETV107X EVM Board Support
 *
 * Copyright (C) 2010 Texas Instruments
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation version 2.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether express or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/ratelimit.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/input.h>
#include <linux/input/matrix_keypad.h>
#include <linux/spi/spi.h>

#include <asm/mach/arch.h>
#include <asm/mach-types.h>

#include <mach/irqs.h>
#include <mach/edma.h>
#include <mach/mux.h>
#include <mach/cp_intc.h>
#include <mach/tnetv107x.h>

#define EVM_MMC_WP_GPIO		21
#define EVM_MMC_CD_GPIO		24
#define EVM_SPI_CS_GPIO		54

static int initialize_gpio(int gpio, char *desc)
{
	int ret;

	ret = gpio_request(gpio, desc);
	if (ret < 0) {
		pr_err_ratelimited("cannot open %s gpio\n", desc);
		return -ENOSYS;
	}
	gpio_direction_input(gpio);
	return gpio;
}

static int mmc_get_cd(int index)
{
	static int gpio;

	if (!gpio)
		gpio = initialize_gpio(EVM_MMC_CD_GPIO, "mmc card detect");

	if (gpio < 0)
		return gpio;

	return gpio_get_value(gpio) ? 0 : 1;
}

static int mmc_get_ro(int index)
{
	static int gpio;

	if (!gpio)
		gpio = initialize_gpio(EVM_MMC_WP_GPIO, "mmc write protect");

	if (gpio < 0)
		return gpio;

	return gpio_get_value(gpio) ? 1 : 0;
}

static struct davinci_mmc_config mmc_config = {
	.get_cd		= mmc_get_cd,
	.get_ro		= mmc_get_ro,
	.wires		= 4,
	.max_freq	= 50000000,
	.caps		= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
	.version	= MMC_CTLR_VERSION_1,
};

static const short sdio1_pins[] __initconst = {
	TNETV107X_SDIO1_CLK_1,		TNETV107X_SDIO1_CMD_1,
	TNETV107X_SDIO1_DATA0_1,	TNETV107X_SDIO1_DATA1_1,
	TNETV107X_SDIO1_DATA2_1,	TNETV107X_SDIO1_DATA3_1,
	TNETV107X_GPIO21,		TNETV107X_GPIO24,
	-1
};

static const short uart1_pins[] __initconst = {
	TNETV107X_UART1_RD,		TNETV107X_UART1_TD,
	-1
};

static const short ssp_pins[] __initconst = {
	TNETV107X_SSP0_0, TNETV107X_SSP0_1, TNETV107X_SSP0_2,
	TNETV107X_SSP1_0, TNETV107X_SSP1_1, TNETV107X_SSP1_2,
	TNETV107X_SSP1_3, -1
};

static struct mtd_partition nand_partitions[] = {
	/* bootloader (U-Boot, etc) in first 12 sectors */
	{
		.name		= "bootloader",
		.offset		= 0,
		.size		= (12*SZ_128K),
		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
	},
	/* bootloader params in the next sector */
	{
		.name		= "params",
		.offset		= MTDPART_OFS_NXTBLK,
		.size		= SZ_128K,
		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
	},
	/* kernel */
	{
		.name		= "kernel",
		.offset		= MTDPART_OFS_NXTBLK,
		.size		= SZ_4M,
		.mask_flags	= 0,
	},
	/* file system */
	{
		.name		= "filesystem",
		.offset		= MTDPART_OFS_NXTBLK,
		.size		= MTDPART_SIZ_FULL,
		.mask_flags	= 0,
	}
};

static struct davinci_nand_pdata nand_config = {
	.mask_cle	= 0x4000,
	.mask_ale	= 0x2000,
	.parts		= nand_partitions,
	.nr_parts	= ARRAY_SIZE(nand_partitions),
	.ecc_mode	= NAND_ECC_HW,
	.bbt_options	= NAND_BBT_USE_FLASH,
	.ecc_bits	= 1,
};

static struct davinci_uart_config serial_config __initconst = {
	.enabled_uarts	= BIT(1),
};

static const uint32_t keymap[] = {
	KEY(0, 0, KEY_NUMERIC_1),
	KEY(0, 1, KEY_NUMERIC_2),
	KEY(0, 2, KEY_NUMERIC_3),
	KEY(0, 3, KEY_FN_F1),
	KEY(0, 4, KEY_MENU),

	KEY(1, 0, KEY_NUMERIC_4),
	KEY(1, 1, KEY_NUMERIC_5),
	KEY(1, 2, KEY_NUMERIC_6),
	KEY(1, 3, KEY_UP),
	KEY(1, 4, KEY_FN_F2),

	KEY(2, 0, KEY_NUMERIC_7),
	KEY(2, 1, KEY_NUMERIC_8),
	KEY(2, 2, KEY_NUMERIC_9),
	KEY(2, 3, KEY_LEFT),
	KEY(2, 4, KEY_ENTER),

	KEY(3, 0, KEY_NUMERIC_STAR),
	KEY(3, 1, KEY_NUMERIC_0),
	KEY(3, 2, KEY_NUMERIC_POUND),
	KEY(3, 3, KEY_DOWN),
	KEY(3, 4, KEY_RIGHT),

	KEY(4, 0, KEY_FN_F3),
	KEY(4, 1, KEY_FN_F4),
	KEY(4, 2, KEY_MUTE),
	KEY(4, 3, KEY_HOME),
	KEY(4, 4, KEY_BACK),

	KEY(5, 0, KEY_VOLUMEDOWN),
	KEY(5, 1, KEY_VOLUMEUP),
	KEY(5, 2, KEY_F1),
	KEY(5, 3, KEY_F2),
	KEY(5, 4, KEY_F3),
};

static const struct matrix_keymap_data keymap_data = {
	.keymap		= keymap,
	.keymap_size	= ARRAY_SIZE(keymap),
};

static struct matrix_keypad_platform_data keypad_config = {
	.keymap_data	= &keymap_data,
	.num_row_gpios	= 6,
	.num_col_gpios	= 5,
	.debounce_ms	= 0, /* minimum */
	.active_low	= 0, /* pull up realization */
	.no_autorepeat	= 0,
};

static void spi_select_device(int cs)
{
	static int gpio;

	if (!gpio) {
		int ret;
		ret = gpio_request(EVM_SPI_CS_GPIO, "spi chipsel");
		if (ret < 0) {
			pr_err("cannot open spi chipsel gpio\n");
			gpio = -ENOSYS;
			return;
		} else {
			gpio = EVM_SPI_CS_GPIO;
			gpio_direction_output(gpio, 0);
		}
	}

	if (gpio < 0)
		return;

	return gpio_set_value(gpio, cs ? 1 : 0);
}

static struct ti_ssp_spi_data spi_master_data = {
	.num_cs	= 2,
	.select	= spi_select_device,
	.iosel	= SSP_PIN_SEL(0, SSP_CLOCK)	| SSP_PIN_SEL(1, SSP_DATA) |
		  SSP_PIN_SEL(2, SSP_CHIPSEL)	| SSP_PIN_SEL(3, SSP_IN)   |
		  SSP_INPUT_SEL(3),
};

static struct ti_ssp_data ssp_config = {
	.out_clock	= 250 * 1000,
	.dev_data	= {
		[1] = {
			.dev_name = "ti-ssp-spi",
			.pdata = &spi_master_data,
			.pdata_size = sizeof(spi_master_data),
		},
	},
};

static struct tnetv107x_device_info evm_device_info __initconst = {
	.serial_config		= &serial_config,
	.mmc_config[1]		= &mmc_config,	/* controller 1 */
	.nand_config[0]		= &nand_config,	/* chip select 0 */
	.keypad_config		= &keypad_config,
	.ssp_config		= &ssp_config,
};

static struct spi_board_info spi_info[] __initconst = {
};

static __init void tnetv107x_evm_board_init(void)
{
	davinci_cfg_reg_list(sdio1_pins);
	davinci_cfg_reg_list(uart1_pins);
	davinci_cfg_reg_list(ssp_pins);

	tnetv107x_devices_init(&evm_device_info);

	spi_register_board_info(spi_info, ARRAY_SIZE(spi_info));
}

#ifdef CONFIG_SERIAL_8250_CONSOLE
static int __init tnetv107x_evm_console_init(void)
{
	return add_preferred_console("ttyS", 0, "115200");
}
console_initcall(tnetv107x_evm_console_init);
#endif

MACHINE_START(TNETV107X, "TNETV107X EVM")
	.atag_offset	= 0x100,
	.map_io		= tnetv107x_init,
	.init_irq	= cp_intc_init,
	.init_time	= davinci_timer_init,
	.init_machine	= tnetv107x_evm_board_init,
	.init_late	= davinci_init_late,
	.dma_zone_size	= SZ_128M,
	.restart	= tnetv107x_restart,
MACHINE_END
OpenPOWER on IntegriCloud