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1 | /* |
2 | * Texas Instruments TNETV107X EVM Board Support | |
3 | * | |
4 | * Copyright (C) 2010 Texas Instruments | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License as | |
8 | * published by the Free Software Foundation version 2. | |
9 | * | |
10 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any | |
11 | * kind, whether express or implied; without even the implied warranty | |
12 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | */ | |
15 | #include <linux/kernel.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/console.h> | |
18 | #include <linux/dma-mapping.h> | |
19 | #include <linux/interrupt.h> | |
20 | #include <linux/gpio.h> | |
21 | #include <linux/delay.h> | |
22 | #include <linux/platform_device.h> | |
23 | #include <linux/ratelimit.h> | |
24 | #include <linux/mtd/mtd.h> | |
25 | #include <linux/mtd/partitions.h> | |
a1b44403 CC |
26 | #include <linux/input.h> |
27 | #include <linux/input/matrix_keypad.h> | |
f6e5306e | 28 | #include <linux/spi/spi.h> |
a1b44403 | 29 | |
57a58a2e CC |
30 | #include <asm/mach/arch.h> |
31 | #include <asm/mach-types.h> | |
32 | ||
33 | #include <mach/irqs.h> | |
34 | #include <mach/edma.h> | |
35 | #include <mach/mux.h> | |
36 | #include <mach/cp_intc.h> | |
37 | #include <mach/tnetv107x.h> | |
38 | ||
39 | #define EVM_MMC_WP_GPIO 21 | |
40 | #define EVM_MMC_CD_GPIO 24 | |
f6e5306e | 41 | #define EVM_SPI_CS_GPIO 54 |
57a58a2e CC |
42 | |
43 | static int initialize_gpio(int gpio, char *desc) | |
44 | { | |
45 | int ret; | |
46 | ||
47 | ret = gpio_request(gpio, desc); | |
48 | if (ret < 0) { | |
49 | pr_err_ratelimited("cannot open %s gpio\n", desc); | |
50 | return -ENOSYS; | |
51 | } | |
52 | gpio_direction_input(gpio); | |
53 | return gpio; | |
54 | } | |
55 | ||
56 | static int mmc_get_cd(int index) | |
57 | { | |
58 | static int gpio; | |
59 | ||
60 | if (!gpio) | |
61 | gpio = initialize_gpio(EVM_MMC_CD_GPIO, "mmc card detect"); | |
62 | ||
63 | if (gpio < 0) | |
64 | return gpio; | |
65 | ||
66 | return gpio_get_value(gpio) ? 0 : 1; | |
67 | } | |
68 | ||
69 | static int mmc_get_ro(int index) | |
70 | { | |
71 | static int gpio; | |
72 | ||
73 | if (!gpio) | |
74 | gpio = initialize_gpio(EVM_MMC_WP_GPIO, "mmc write protect"); | |
75 | ||
76 | if (gpio < 0) | |
77 | return gpio; | |
78 | ||
79 | return gpio_get_value(gpio) ? 1 : 0; | |
80 | } | |
81 | ||
82 | static struct davinci_mmc_config mmc_config = { | |
83 | .get_cd = mmc_get_cd, | |
84 | .get_ro = mmc_get_ro, | |
85 | .wires = 4, | |
86 | .max_freq = 50000000, | |
87 | .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED, | |
88 | .version = MMC_CTLR_VERSION_1, | |
89 | }; | |
90 | ||
bcad6dc3 | 91 | static const short sdio1_pins[] __initconst = { |
57a58a2e CC |
92 | TNETV107X_SDIO1_CLK_1, TNETV107X_SDIO1_CMD_1, |
93 | TNETV107X_SDIO1_DATA0_1, TNETV107X_SDIO1_DATA1_1, | |
94 | TNETV107X_SDIO1_DATA2_1, TNETV107X_SDIO1_DATA3_1, | |
95 | TNETV107X_GPIO21, TNETV107X_GPIO24, | |
96 | -1 | |
97 | }; | |
98 | ||
bcad6dc3 | 99 | static const short uart1_pins[] __initconst = { |
57a58a2e CC |
100 | TNETV107X_UART1_RD, TNETV107X_UART1_TD, |
101 | -1 | |
102 | }; | |
103 | ||
bcad6dc3 | 104 | static const short ssp_pins[] __initconst = { |
08e0e1d5 CC |
105 | TNETV107X_SSP0_0, TNETV107X_SSP0_1, TNETV107X_SSP0_2, |
106 | TNETV107X_SSP1_0, TNETV107X_SSP1_1, TNETV107X_SSP1_2, | |
107 | TNETV107X_SSP1_3, -1 | |
108 | }; | |
109 | ||
57a58a2e CC |
110 | static struct mtd_partition nand_partitions[] = { |
111 | /* bootloader (U-Boot, etc) in first 12 sectors */ | |
112 | { | |
113 | .name = "bootloader", | |
114 | .offset = 0, | |
115 | .size = (12*SZ_128K), | |
116 | .mask_flags = MTD_WRITEABLE, /* force read-only */ | |
117 | }, | |
118 | /* bootloader params in the next sector */ | |
119 | { | |
120 | .name = "params", | |
121 | .offset = MTDPART_OFS_NXTBLK, | |
122 | .size = SZ_128K, | |
123 | .mask_flags = MTD_WRITEABLE, /* force read-only */ | |
124 | }, | |
125 | /* kernel */ | |
126 | { | |
127 | .name = "kernel", | |
128 | .offset = MTDPART_OFS_NXTBLK, | |
129 | .size = SZ_4M, | |
130 | .mask_flags = 0, | |
131 | }, | |
132 | /* file system */ | |
133 | { | |
134 | .name = "filesystem", | |
135 | .offset = MTDPART_OFS_NXTBLK, | |
136 | .size = MTDPART_SIZ_FULL, | |
137 | .mask_flags = 0, | |
138 | } | |
139 | }; | |
140 | ||
141 | static struct davinci_nand_pdata nand_config = { | |
142 | .mask_cle = 0x4000, | |
143 | .mask_ale = 0x2000, | |
144 | .parts = nand_partitions, | |
145 | .nr_parts = ARRAY_SIZE(nand_partitions), | |
146 | .ecc_mode = NAND_ECC_HW, | |
bb9ebd4e | 147 | .bbt_options = NAND_BBT_USE_FLASH, |
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148 | .ecc_bits = 1, |
149 | }; | |
150 | ||
151 | static struct davinci_uart_config serial_config __initconst = { | |
152 | .enabled_uarts = BIT(1), | |
153 | }; | |
154 | ||
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155 | static const uint32_t keymap[] = { |
156 | KEY(0, 0, KEY_NUMERIC_1), | |
157 | KEY(0, 1, KEY_NUMERIC_2), | |
158 | KEY(0, 2, KEY_NUMERIC_3), | |
159 | KEY(0, 3, KEY_FN_F1), | |
160 | KEY(0, 4, KEY_MENU), | |
161 | ||
162 | KEY(1, 0, KEY_NUMERIC_4), | |
163 | KEY(1, 1, KEY_NUMERIC_5), | |
164 | KEY(1, 2, KEY_NUMERIC_6), | |
165 | KEY(1, 3, KEY_UP), | |
166 | KEY(1, 4, KEY_FN_F2), | |
167 | ||
168 | KEY(2, 0, KEY_NUMERIC_7), | |
169 | KEY(2, 1, KEY_NUMERIC_8), | |
170 | KEY(2, 2, KEY_NUMERIC_9), | |
171 | KEY(2, 3, KEY_LEFT), | |
172 | KEY(2, 4, KEY_ENTER), | |
173 | ||
174 | KEY(3, 0, KEY_NUMERIC_STAR), | |
175 | KEY(3, 1, KEY_NUMERIC_0), | |
176 | KEY(3, 2, KEY_NUMERIC_POUND), | |
177 | KEY(3, 3, KEY_DOWN), | |
178 | KEY(3, 4, KEY_RIGHT), | |
179 | ||
180 | KEY(4, 0, KEY_FN_F3), | |
181 | KEY(4, 1, KEY_FN_F4), | |
182 | KEY(4, 2, KEY_MUTE), | |
183 | KEY(4, 3, KEY_HOME), | |
184 | KEY(4, 4, KEY_BACK), | |
185 | ||
186 | KEY(5, 0, KEY_VOLUMEDOWN), | |
187 | KEY(5, 1, KEY_VOLUMEUP), | |
188 | KEY(5, 2, KEY_F1), | |
189 | KEY(5, 3, KEY_F2), | |
190 | KEY(5, 4, KEY_F3), | |
191 | }; | |
192 | ||
193 | static const struct matrix_keymap_data keymap_data = { | |
194 | .keymap = keymap, | |
195 | .keymap_size = ARRAY_SIZE(keymap), | |
196 | }; | |
197 | ||
198 | static struct matrix_keypad_platform_data keypad_config = { | |
199 | .keymap_data = &keymap_data, | |
200 | .num_row_gpios = 6, | |
201 | .num_col_gpios = 5, | |
202 | .debounce_ms = 0, /* minimum */ | |
203 | .active_low = 0, /* pull up realization */ | |
204 | .no_autorepeat = 0, | |
205 | }; | |
206 | ||
f6e5306e CC |
207 | static void spi_select_device(int cs) |
208 | { | |
209 | static int gpio; | |
210 | ||
211 | if (!gpio) { | |
212 | int ret; | |
213 | ret = gpio_request(EVM_SPI_CS_GPIO, "spi chipsel"); | |
214 | if (ret < 0) { | |
215 | pr_err("cannot open spi chipsel gpio\n"); | |
216 | gpio = -ENOSYS; | |
217 | return; | |
218 | } else { | |
219 | gpio = EVM_SPI_CS_GPIO; | |
220 | gpio_direction_output(gpio, 0); | |
221 | } | |
222 | } | |
223 | ||
224 | if (gpio < 0) | |
225 | return; | |
226 | ||
227 | return gpio_set_value(gpio, cs ? 1 : 0); | |
228 | } | |
229 | ||
230 | static struct ti_ssp_spi_data spi_master_data = { | |
231 | .num_cs = 2, | |
232 | .select = spi_select_device, | |
233 | .iosel = SSP_PIN_SEL(0, SSP_CLOCK) | SSP_PIN_SEL(1, SSP_DATA) | | |
234 | SSP_PIN_SEL(2, SSP_CHIPSEL) | SSP_PIN_SEL(3, SSP_IN) | | |
235 | SSP_INPUT_SEL(3), | |
236 | }; | |
237 | ||
08e0e1d5 CC |
238 | static struct ti_ssp_data ssp_config = { |
239 | .out_clock = 250 * 1000, | |
240 | .dev_data = { | |
f6e5306e CC |
241 | [1] = { |
242 | .dev_name = "ti-ssp-spi", | |
243 | .pdata = &spi_master_data, | |
244 | .pdata_size = sizeof(spi_master_data), | |
245 | }, | |
08e0e1d5 CC |
246 | }, |
247 | }; | |
248 | ||
57a58a2e CC |
249 | static struct tnetv107x_device_info evm_device_info __initconst = { |
250 | .serial_config = &serial_config, | |
251 | .mmc_config[1] = &mmc_config, /* controller 1 */ | |
252 | .nand_config[0] = &nand_config, /* chip select 0 */ | |
a1b44403 | 253 | .keypad_config = &keypad_config, |
08e0e1d5 | 254 | .ssp_config = &ssp_config, |
57a58a2e CC |
255 | }; |
256 | ||
f6e5306e CC |
257 | static struct spi_board_info spi_info[] __initconst = { |
258 | }; | |
259 | ||
57a58a2e CC |
260 | static __init void tnetv107x_evm_board_init(void) |
261 | { | |
262 | davinci_cfg_reg_list(sdio1_pins); | |
263 | davinci_cfg_reg_list(uart1_pins); | |
08e0e1d5 | 264 | davinci_cfg_reg_list(ssp_pins); |
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265 | |
266 | tnetv107x_devices_init(&evm_device_info); | |
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267 | |
268 | spi_register_board_info(spi_info, ARRAY_SIZE(spi_info)); | |
57a58a2e CC |
269 | } |
270 | ||
271 | #ifdef CONFIG_SERIAL_8250_CONSOLE | |
272 | static int __init tnetv107x_evm_console_init(void) | |
273 | { | |
274 | return add_preferred_console("ttyS", 0, "115200"); | |
275 | } | |
276 | console_initcall(tnetv107x_evm_console_init); | |
277 | #endif | |
278 | ||
279 | MACHINE_START(TNETV107X, "TNETV107X EVM") | |
e7e56014 | 280 | .atag_offset = 0x100, |
57a58a2e CC |
281 | .map_io = tnetv107x_init, |
282 | .init_irq = cp_intc_init, | |
6bb27d73 | 283 | .init_time = davinci_timer_init, |
57a58a2e | 284 | .init_machine = tnetv107x_evm_board_init, |
3aa3e840 | 285 | .init_late = davinci_init_late, |
f68deabf | 286 | .dma_zone_size = SZ_128M, |
c6121ddd | 287 | .restart = tnetv107x_restart, |
57a58a2e | 288 | MACHINE_END |