1 /*
2 * Copyright 2009 Sascha Hauer, <kernel@pengutronix.de>
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor,
16 * Boston, MA 02110-1301, USA.
17 */
18
19 /*
20 * This machine is known as:
21 * - i.MX25 3-Stack Development System
22 * - i.MX25 Platform Development Kit (i.MX25 PDK)
23 */
24
25 #include <linux/types.h>
26 #include <linux/init.h>
27 #include <linux/delay.h>
28 #include <linux/clk.h>
29 #include <linux/irq.h>
30 #include <linux/gpio.h>
31 #include <linux/platform_device.h>
32 #include <linux/usb/otg.h>
33
34 #include <mach/hardware.h>
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/time.h>
38 #include <asm/memory.h>
39 #include <asm/mach/map.h>
40 #include <mach/common.h>
41 #include <mach/mx25.h>
42 #include <mach/iomux-mx25.h>
43
44 #include "devices-imx25.h"
45
46 #define MX25PDK_CAN_PWDN IMX_GPIO_NR(4, 6)
47
48 static const struct imxuart_platform_data uart_pdata __initconst = {
49 .flags = IMXUART_HAVE_RTSCTS,
50 };
51
52 static iomux_v3_cfg_t mx25pdk_pads[] = {
53 MX25_PAD_FEC_MDC__FEC_MDC,
54 MX25_PAD_FEC_MDIO__FEC_MDIO,
55 MX25_PAD_FEC_TDATA0__FEC_TDATA0,
56 MX25_PAD_FEC_TDATA1__FEC_TDATA1,
57 MX25_PAD_FEC_TX_EN__FEC_TX_EN,
58 MX25_PAD_FEC_RDATA0__FEC_RDATA0,
59 MX25_PAD_FEC_RDATA1__FEC_RDATA1,
60 MX25_PAD_FEC_RX_DV__FEC_RX_DV,
61 MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
62 MX25_PAD_A17__GPIO_2_3, /* FEC_EN, GPIO 35 */
63 MX25_PAD_D12__GPIO_4_8, /* FEC_RESET_B, GPIO 104 */
64
65 /* LCD */
66 MX25_PAD_LD0__LD0,
67 MX25_PAD_LD1__LD1,
68 MX25_PAD_LD2__LD2,
69 MX25_PAD_LD3__LD3,
70 MX25_PAD_LD4__LD4,
71 MX25_PAD_LD5__LD5,
72 MX25_PAD_LD6__LD6,
73 MX25_PAD_LD7__LD7,
74 MX25_PAD_LD8__LD8,
75 MX25_PAD_LD9__LD9,
76 MX25_PAD_LD10__LD10,
77 MX25_PAD_LD11__LD11,
78 MX25_PAD_LD12__LD12,
79 MX25_PAD_LD13__LD13,
80 MX25_PAD_LD14__LD14,
81 MX25_PAD_LD15__LD15,
82 MX25_PAD_GPIO_E__LD16,
83 MX25_PAD_GPIO_F__LD17,
84 MX25_PAD_HSYNC__HSYNC,
85 MX25_PAD_VSYNC__VSYNC,
86 MX25_PAD_LSCLK__LSCLK,
87 MX25_PAD_OE_ACD__OE_ACD,
88 MX25_PAD_CONTRAST__CONTRAST,
89
90 /* Keypad */
91 MX25_PAD_KPP_ROW0__KPP_ROW0,
92 MX25_PAD_KPP_ROW1__KPP_ROW1,
93 MX25_PAD_KPP_ROW2__KPP_ROW2,
94 MX25_PAD_KPP_ROW3__KPP_ROW3,
95 MX25_PAD_KPP_COL0__KPP_COL0,
96 MX25_PAD_KPP_COL1__KPP_COL1,
97 MX25_PAD_KPP_COL2__KPP_COL2,
98 MX25_PAD_KPP_COL3__KPP_COL3,
99
100 /* SD1 */
101 MX25_PAD_SD1_CMD__SD1_CMD,
102 MX25_PAD_SD1_CLK__SD1_CLK,
103 MX25_PAD_SD1_DATA0__SD1_DATA0,
104 MX25_PAD_SD1_DATA1__SD1_DATA1,
105 MX25_PAD_SD1_DATA2__SD1_DATA2,
106 MX25_PAD_SD1_DATA3__SD1_DATA3,
107 MX25_PAD_A14__GPIO_2_0, /* WriteProtect */
108 MX25_PAD_A15__GPIO_2_1, /* CardDetect */
109
110 /* I2C1 */
111 MX25_PAD_I2C1_CLK__I2C1_CLK,
112 MX25_PAD_I2C1_DAT__I2C1_DAT,
113
114 /* CAN1 */
115 MX25_PAD_GPIO_A__CAN1_TX,
116 MX25_PAD_GPIO_B__CAN1_RX,
117 MX25_PAD_D14__GPIO_4_6, /* CAN_PWDN */
118 };
119
120 static const struct fec_platform_data mx25_fec_pdata __initconst = {
121 .phy = PHY_INTERFACE_MODE_RMII,
122 };
123
124 #define FEC_ENABLE_GPIO IMX_GPIO_NR(2, 3)
125 #define FEC_RESET_B_GPIO IMX_GPIO_NR(4, 8)
126
mx25pdk_fec_reset(void)127 static void __init mx25pdk_fec_reset(void)
128 {
129 gpio_request(FEC_ENABLE_GPIO, "FEC PHY enable");
130 gpio_request(FEC_RESET_B_GPIO, "FEC PHY reset");
131
132 gpio_direction_output(FEC_ENABLE_GPIO, 0); /* drop PHY power */
133 gpio_direction_output(FEC_RESET_B_GPIO, 0); /* assert reset */
134 udelay(2);
135
136 /* turn on PHY power and lift reset */
137 gpio_set_value(FEC_ENABLE_GPIO, 1);
138 gpio_set_value(FEC_RESET_B_GPIO, 1);
139 }
140
141 static const struct mxc_nand_platform_data
142 mx25pdk_nand_board_info __initconst = {
143 .width = 1,
144 .hw_ecc = 1,
145 .flash_bbt = 1,
146 };
147
148 static struct imx_fb_videomode mx25pdk_modes[] = {
149 {
150 .mode = {
151 .name = "CRT-VGA",
152 .refresh = 60,
153 .xres = 640,
154 .yres = 480,
155 .pixclock = 39683,
156 .left_margin = 45,
157 .right_margin = 114,
158 .upper_margin = 33,
159 .lower_margin = 11,
160 .hsync_len = 1,
161 .vsync_len = 1,
162 },
163 .bpp = 16,
164 .pcr = 0xFA208B80,
165 },
166 };
167
168 static const struct imx_fb_platform_data mx25pdk_fb_pdata __initconst = {
169 .mode = mx25pdk_modes,
170 .num_modes = ARRAY_SIZE(mx25pdk_modes),
171 .pwmr = 0x00A903FF,
172 .lscr1 = 0x00120300,
173 .dmacr = 0x00020010,
174 };
175
176 static const uint32_t mx25pdk_keymap[] = {
177 KEY(0, 0, KEY_UP),
178 KEY(0, 1, KEY_DOWN),
179 KEY(0, 2, KEY_VOLUMEDOWN),
180 KEY(0, 3, KEY_HOME),
181 KEY(1, 0, KEY_RIGHT),
182 KEY(1, 1, KEY_LEFT),
183 KEY(1, 2, KEY_ENTER),
184 KEY(1, 3, KEY_VOLUMEUP),
185 KEY(2, 0, KEY_F6),
186 KEY(2, 1, KEY_F8),
187 KEY(2, 2, KEY_F9),
188 KEY(2, 3, KEY_F10),
189 KEY(3, 0, KEY_F1),
190 KEY(3, 1, KEY_F2),
191 KEY(3, 2, KEY_F3),
192 KEY(3, 3, KEY_POWER),
193 };
194
195 static const struct matrix_keymap_data mx25pdk_keymap_data __initconst = {
196 .keymap = mx25pdk_keymap,
197 .keymap_size = ARRAY_SIZE(mx25pdk_keymap),
198 };
199
mx25pdk_usbh2_init(struct platform_device * pdev)200 static int mx25pdk_usbh2_init(struct platform_device *pdev)
201 {
202 return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERNAL_PHY);
203 }
204
205 static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
206 .init = mx25pdk_usbh2_init,
207 .portsc = MXC_EHCI_MODE_SERIAL,
208 };
209
210 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
211 .operating_mode = FSL_USB2_DR_DEVICE,
212 .phy_mode = FSL_USB2_PHY_UTMI,
213 };
214
215 static const struct imxi2c_platform_data mx25_3ds_i2c0_data __initconst = {
216 .bitrate = 100000,
217 };
218
219 #define SD1_GPIO_WP IMX_GPIO_NR(2, 0)
220 #define SD1_GPIO_CD IMX_GPIO_NR(2, 1)
221
222 static const struct esdhc_platform_data mx25pdk_esdhc_pdata __initconst = {
223 .wp_gpio = SD1_GPIO_WP,
224 .cd_gpio = SD1_GPIO_CD,
225 .wp_type = ESDHC_WP_GPIO,
226 .cd_type = ESDHC_CD_GPIO,
227 };
228
mx25pdk_init(void)229 static void __init mx25pdk_init(void)
230 {
231 imx25_soc_init();
232
233 mxc_iomux_v3_setup_multiple_pads(mx25pdk_pads,
234 ARRAY_SIZE(mx25pdk_pads));
235
236 imx25_add_imx_uart0(&uart_pdata);
237 imx25_add_fsl_usb2_udc(&otg_device_pdata);
238 imx25_add_mxc_ehci_hs(&usbh2_pdata);
239 imx25_add_mxc_nand(&mx25pdk_nand_board_info);
240 imx25_add_imxdi_rtc(NULL);
241 imx25_add_imx_fb(&mx25pdk_fb_pdata);
242 imx25_add_imx2_wdt(NULL);
243
244 mx25pdk_fec_reset();
245 imx25_add_fec(&mx25_fec_pdata);
246 imx25_add_imx_keypad(&mx25pdk_keymap_data);
247
248 imx25_add_sdhci_esdhc_imx(0, &mx25pdk_esdhc_pdata);
249 imx25_add_imx_i2c0(&mx25_3ds_i2c0_data);
250
251 gpio_request_one(MX25PDK_CAN_PWDN, GPIOF_OUT_INIT_LOW, "can-pwdn");
252 imx25_add_flexcan0(NULL);
253 }
254
mx25pdk_timer_init(void)255 static void __init mx25pdk_timer_init(void)
256 {
257 mx25_clocks_init();
258 }
259
260 static struct sys_timer mx25pdk_timer = {
261 .init = mx25pdk_timer_init,
262 };
263
264 MACHINE_START(MX25_3DS, "Freescale MX25PDK (3DS)")
265 /* Maintainer: Freescale Semiconductor, Inc. */
266 .atag_offset = 0x100,
267 .map_io = mx25_map_io,
268 .init_early = imx25_init_early,
269 .init_irq = mx25_init_irq,
270 .handle_irq = imx25_handle_irq,
271 .timer = &mx25pdk_timer,
272 .init_machine = mx25pdk_init,
273 .restart = mxc_restart,
274 MACHINE_END
275