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ec9be0de FE |
1 | /* |
2 | * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved. | |
3 | * | |
4 | * Author: Fabio Estevam <fabio.estevam@freescale.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
ec9be0de FE |
15 | */ |
16 | ||
8fdca37a UKK |
17 | /* |
18 | * This machine is known as: | |
19 | * - i.MX27 3-Stack Development System | |
20 | * - i.MX27 Platform Development Kit (i.MX27 PDK) | |
21 | */ | |
22 | ||
ec9be0de FE |
23 | #include <linux/platform_device.h> |
24 | #include <linux/gpio.h> | |
3fac6cf3 | 25 | #include <linux/input/matrix_keypad.h> |
b5ec73eb | 26 | #include <linux/irq.h> |
ec9be0de FE |
27 | #include <asm/mach-types.h> |
28 | #include <asm/mach/arch.h> | |
29 | #include <asm/mach/time.h> | |
30 | #include <mach/hardware.h> | |
31 | #include <mach/common.h> | |
e835d88e | 32 | #include <mach/iomux-mx27.h> |
b5ec73eb | 33 | #include <mach/mmc.h> |
ec9be0de | 34 | |
d5dac4a6 | 35 | #include "devices-imx27.h" |
ec9be0de FE |
36 | #include "devices.h" |
37 | ||
b5ec73eb RP |
38 | #define SD1_EN_GPIO (GPIO_PORTB + 25) |
39 | ||
6c80ee51 | 40 | static const int mx27pdk_pins[] __initconst = { |
ec9be0de FE |
41 | /* UART1 */ |
42 | PE12_PF_UART1_TXD, | |
43 | PE13_PF_UART1_RXD, | |
44 | PE14_PF_UART1_CTS, | |
45 | PE15_PF_UART1_RTS, | |
46 | /* FEC */ | |
47 | PD0_AIN_FEC_TXD0, | |
48 | PD1_AIN_FEC_TXD1, | |
49 | PD2_AIN_FEC_TXD2, | |
50 | PD3_AIN_FEC_TXD3, | |
51 | PD4_AOUT_FEC_RX_ER, | |
52 | PD5_AOUT_FEC_RXD1, | |
53 | PD6_AOUT_FEC_RXD2, | |
54 | PD7_AOUT_FEC_RXD3, | |
55 | PD8_AF_FEC_MDIO, | |
56 | PD9_AIN_FEC_MDC, | |
57 | PD10_AOUT_FEC_CRS, | |
58 | PD11_AOUT_FEC_TX_CLK, | |
59 | PD12_AOUT_FEC_RXD0, | |
60 | PD13_AOUT_FEC_RX_DV, | |
61 | PD14_AOUT_FEC_RX_CLK, | |
62 | PD15_AOUT_FEC_COL, | |
63 | PD16_AIN_FEC_TX_ER, | |
64 | PF23_AIN_FEC_TX_EN, | |
b5ec73eb RP |
65 | /* SDHC1 */ |
66 | PE18_PF_SD1_D0, | |
67 | PE19_PF_SD1_D1, | |
68 | PE20_PF_SD1_D2, | |
69 | PE21_PF_SD1_D3, | |
70 | PE22_PF_SD1_CMD, | |
71 | PE23_PF_SD1_CLK, | |
72 | SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT, | |
ec9be0de FE |
73 | }; |
74 | ||
d5dac4a6 | 75 | static const struct imxuart_platform_data uart_pdata __initconst = { |
ec9be0de FE |
76 | .flags = IMXUART_HAVE_RTSCTS, |
77 | }; | |
78 | ||
3fac6cf3 RP |
79 | /* |
80 | * Matrix keyboard | |
81 | */ | |
82 | ||
83 | static const uint32_t mx27_3ds_keymap[] = { | |
84 | KEY(0, 0, KEY_UP), | |
85 | KEY(0, 1, KEY_DOWN), | |
86 | KEY(1, 0, KEY_RIGHT), | |
87 | KEY(1, 1, KEY_LEFT), | |
88 | KEY(1, 2, KEY_ENTER), | |
89 | KEY(2, 0, KEY_F6), | |
90 | KEY(2, 1, KEY_F8), | |
91 | KEY(2, 2, KEY_F9), | |
92 | KEY(2, 3, KEY_F10), | |
93 | }; | |
94 | ||
95 | static struct matrix_keymap_data mx27_3ds_keymap_data = { | |
96 | .keymap = mx27_3ds_keymap, | |
97 | .keymap_size = ARRAY_SIZE(mx27_3ds_keymap), | |
98 | }; | |
99 | ||
b5ec73eb RP |
100 | static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq, |
101 | void *data) | |
102 | { | |
103 | return request_irq(IRQ_GPIOB(26), detect_irq, IRQF_TRIGGER_FALLING | | |
104 | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data); | |
105 | } | |
106 | ||
107 | static void mx27_3ds_sdhc1_exit(struct device *dev, void *data) | |
108 | { | |
109 | free_irq(IRQ_GPIOB(26), data); | |
110 | } | |
111 | ||
112 | static struct imxmmc_platform_data sdhc1_pdata = { | |
113 | .init = mx27_3ds_sdhc1_init, | |
114 | .exit = mx27_3ds_sdhc1_exit, | |
115 | }; | |
116 | ||
117 | static void mx27_3ds_sdhc1_enable_level_translator(void) | |
118 | { | |
119 | /* Turn on TXB0108 OE pin */ | |
120 | gpio_request(SD1_EN_GPIO, "sd1_enable"); | |
121 | gpio_direction_output(SD1_EN_GPIO, 1); | |
122 | } | |
123 | ||
ec9be0de FE |
124 | static void __init mx27pdk_init(void) |
125 | { | |
126 | mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins), | |
127 | "mx27pdk"); | |
b5ec73eb | 128 | mx27_3ds_sdhc1_enable_level_translator(); |
d5dac4a6 | 129 | imx27_add_imx_uart0(&uart_pdata); |
6bd96f3c | 130 | imx27_add_fec(NULL); |
3fac6cf3 | 131 | mxc_register_device(&imx_kpp_device, &mx27_3ds_keymap_data); |
b5ec73eb | 132 | mxc_register_device(&mxc_sdhc_device0, &sdhc1_pdata); |
ec9be0de FE |
133 | } |
134 | ||
135 | static void __init mx27pdk_timer_init(void) | |
136 | { | |
137 | mx27_clocks_init(26000000); | |
138 | } | |
139 | ||
140 | static struct sys_timer mx27pdk_timer = { | |
141 | .init = mx27pdk_timer_init, | |
142 | }; | |
143 | ||
144 | MACHINE_START(MX27_3DS, "Freescale MX27PDK") | |
145 | /* maintainer: Freescale Semiconductor, Inc. */ | |
34101237 | 146 | .boot_params = MX27_PHYS_OFFSET + 0x100, |
add85a41 | 147 | .map_io = mx27_map_io, |
c5aa0ad0 | 148 | .init_irq = mx27_init_irq, |
ec9be0de FE |
149 | .init_machine = mx27pdk_init, |
150 | .timer = &mx27pdk_timer, | |
151 | MACHINE_END |