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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> | |
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26 | #include <linux/input.h> |
27 | #include <linux/input/matrix_keypad.h> | |
28 | ||
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29 | #include <asm/mach/arch.h> |
30 | #include <asm/mach-types.h> | |
31 | ||
32 | #include <mach/irqs.h> | |
33 | #include <mach/edma.h> | |
34 | #include <mach/mux.h> | |
35 | #include <mach/cp_intc.h> | |
36 | #include <mach/tnetv107x.h> | |
37 | ||
38 | #define EVM_MMC_WP_GPIO 21 | |
39 | #define EVM_MMC_CD_GPIO 24 | |
40 | ||
41 | static int initialize_gpio(int gpio, char *desc) | |
42 | { | |
43 | int ret; | |
44 | ||
45 | ret = gpio_request(gpio, desc); | |
46 | if (ret < 0) { | |
47 | pr_err_ratelimited("cannot open %s gpio\n", desc); | |
48 | return -ENOSYS; | |
49 | } | |
50 | gpio_direction_input(gpio); | |
51 | return gpio; | |
52 | } | |
53 | ||
54 | static int mmc_get_cd(int index) | |
55 | { | |
56 | static int gpio; | |
57 | ||
58 | if (!gpio) | |
59 | gpio = initialize_gpio(EVM_MMC_CD_GPIO, "mmc card detect"); | |
60 | ||
61 | if (gpio < 0) | |
62 | return gpio; | |
63 | ||
64 | return gpio_get_value(gpio) ? 0 : 1; | |
65 | } | |
66 | ||
67 | static int mmc_get_ro(int index) | |
68 | { | |
69 | static int gpio; | |
70 | ||
71 | if (!gpio) | |
72 | gpio = initialize_gpio(EVM_MMC_WP_GPIO, "mmc write protect"); | |
73 | ||
74 | if (gpio < 0) | |
75 | return gpio; | |
76 | ||
77 | return gpio_get_value(gpio) ? 1 : 0; | |
78 | } | |
79 | ||
80 | static struct davinci_mmc_config mmc_config = { | |
81 | .get_cd = mmc_get_cd, | |
82 | .get_ro = mmc_get_ro, | |
83 | .wires = 4, | |
84 | .max_freq = 50000000, | |
85 | .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED, | |
86 | .version = MMC_CTLR_VERSION_1, | |
87 | }; | |
88 | ||
89 | static const short sdio1_pins[] __initdata = { | |
90 | TNETV107X_SDIO1_CLK_1, TNETV107X_SDIO1_CMD_1, | |
91 | TNETV107X_SDIO1_DATA0_1, TNETV107X_SDIO1_DATA1_1, | |
92 | TNETV107X_SDIO1_DATA2_1, TNETV107X_SDIO1_DATA3_1, | |
93 | TNETV107X_GPIO21, TNETV107X_GPIO24, | |
94 | -1 | |
95 | }; | |
96 | ||
97 | static const short uart1_pins[] __initdata = { | |
98 | TNETV107X_UART1_RD, TNETV107X_UART1_TD, | |
99 | -1 | |
100 | }; | |
101 | ||
102 | static struct mtd_partition nand_partitions[] = { | |
103 | /* bootloader (U-Boot, etc) in first 12 sectors */ | |
104 | { | |
105 | .name = "bootloader", | |
106 | .offset = 0, | |
107 | .size = (12*SZ_128K), | |
108 | .mask_flags = MTD_WRITEABLE, /* force read-only */ | |
109 | }, | |
110 | /* bootloader params in the next sector */ | |
111 | { | |
112 | .name = "params", | |
113 | .offset = MTDPART_OFS_NXTBLK, | |
114 | .size = SZ_128K, | |
115 | .mask_flags = MTD_WRITEABLE, /* force read-only */ | |
116 | }, | |
117 | /* kernel */ | |
118 | { | |
119 | .name = "kernel", | |
120 | .offset = MTDPART_OFS_NXTBLK, | |
121 | .size = SZ_4M, | |
122 | .mask_flags = 0, | |
123 | }, | |
124 | /* file system */ | |
125 | { | |
126 | .name = "filesystem", | |
127 | .offset = MTDPART_OFS_NXTBLK, | |
128 | .size = MTDPART_SIZ_FULL, | |
129 | .mask_flags = 0, | |
130 | } | |
131 | }; | |
132 | ||
133 | static struct davinci_nand_pdata nand_config = { | |
134 | .mask_cle = 0x4000, | |
135 | .mask_ale = 0x2000, | |
136 | .parts = nand_partitions, | |
137 | .nr_parts = ARRAY_SIZE(nand_partitions), | |
138 | .ecc_mode = NAND_ECC_HW, | |
139 | .options = NAND_USE_FLASH_BBT, | |
140 | .ecc_bits = 1, | |
141 | }; | |
142 | ||
143 | static struct davinci_uart_config serial_config __initconst = { | |
144 | .enabled_uarts = BIT(1), | |
145 | }; | |
146 | ||
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147 | static const uint32_t keymap[] = { |
148 | KEY(0, 0, KEY_NUMERIC_1), | |
149 | KEY(0, 1, KEY_NUMERIC_2), | |
150 | KEY(0, 2, KEY_NUMERIC_3), | |
151 | KEY(0, 3, KEY_FN_F1), | |
152 | KEY(0, 4, KEY_MENU), | |
153 | ||
154 | KEY(1, 0, KEY_NUMERIC_4), | |
155 | KEY(1, 1, KEY_NUMERIC_5), | |
156 | KEY(1, 2, KEY_NUMERIC_6), | |
157 | KEY(1, 3, KEY_UP), | |
158 | KEY(1, 4, KEY_FN_F2), | |
159 | ||
160 | KEY(2, 0, KEY_NUMERIC_7), | |
161 | KEY(2, 1, KEY_NUMERIC_8), | |
162 | KEY(2, 2, KEY_NUMERIC_9), | |
163 | KEY(2, 3, KEY_LEFT), | |
164 | KEY(2, 4, KEY_ENTER), | |
165 | ||
166 | KEY(3, 0, KEY_NUMERIC_STAR), | |
167 | KEY(3, 1, KEY_NUMERIC_0), | |
168 | KEY(3, 2, KEY_NUMERIC_POUND), | |
169 | KEY(3, 3, KEY_DOWN), | |
170 | KEY(3, 4, KEY_RIGHT), | |
171 | ||
172 | KEY(4, 0, KEY_FN_F3), | |
173 | KEY(4, 1, KEY_FN_F4), | |
174 | KEY(4, 2, KEY_MUTE), | |
175 | KEY(4, 3, KEY_HOME), | |
176 | KEY(4, 4, KEY_BACK), | |
177 | ||
178 | KEY(5, 0, KEY_VOLUMEDOWN), | |
179 | KEY(5, 1, KEY_VOLUMEUP), | |
180 | KEY(5, 2, KEY_F1), | |
181 | KEY(5, 3, KEY_F2), | |
182 | KEY(5, 4, KEY_F3), | |
183 | }; | |
184 | ||
185 | static const struct matrix_keymap_data keymap_data = { | |
186 | .keymap = keymap, | |
187 | .keymap_size = ARRAY_SIZE(keymap), | |
188 | }; | |
189 | ||
190 | static struct matrix_keypad_platform_data keypad_config = { | |
191 | .keymap_data = &keymap_data, | |
192 | .num_row_gpios = 6, | |
193 | .num_col_gpios = 5, | |
194 | .debounce_ms = 0, /* minimum */ | |
195 | .active_low = 0, /* pull up realization */ | |
196 | .no_autorepeat = 0, | |
197 | }; | |
198 | ||
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199 | static struct tnetv107x_device_info evm_device_info __initconst = { |
200 | .serial_config = &serial_config, | |
201 | .mmc_config[1] = &mmc_config, /* controller 1 */ | |
202 | .nand_config[0] = &nand_config, /* chip select 0 */ | |
a1b44403 | 203 | .keypad_config = &keypad_config, |
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204 | }; |
205 | ||
206 | static __init void tnetv107x_evm_board_init(void) | |
207 | { | |
208 | davinci_cfg_reg_list(sdio1_pins); | |
209 | davinci_cfg_reg_list(uart1_pins); | |
210 | ||
211 | tnetv107x_devices_init(&evm_device_info); | |
212 | } | |
213 | ||
214 | #ifdef CONFIG_SERIAL_8250_CONSOLE | |
215 | static int __init tnetv107x_evm_console_init(void) | |
216 | { | |
217 | return add_preferred_console("ttyS", 0, "115200"); | |
218 | } | |
219 | console_initcall(tnetv107x_evm_console_init); | |
220 | #endif | |
221 | ||
222 | MACHINE_START(TNETV107X, "TNETV107X EVM") | |
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223 | .boot_params = (TNETV107X_DDR_BASE + 0x100), |
224 | .map_io = tnetv107x_init, | |
225 | .init_irq = cp_intc_init, | |
226 | .timer = &davinci_timer, | |
227 | .init_machine = tnetv107x_evm_board_init, | |
228 | MACHINE_END |