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 <asm/mach-types.h>
35 #include <asm/mach/arch.h>
36 #include <asm/mach/time.h>
37 #include <asm/memory.h>
38 #include <asm/mach/map.h>
39
40 #include "common.h"
41 #include "devices-imx25.h"
42 #include "ehci.h"
43 #include "hardware.h"
44 #include "iomux-mx25.h"
45 #include "mx25.h"
46
47 #define MX25PDK_CAN_PWDN IMX_GPIO_NR(4, 6)
48
49 static const struct imxuart_platform_data uart_pdata __initconst = {
50 .flags = IMXUART_HAVE_RTSCTS,
51 };
52
53 static iomux_v3_cfg_t mx25pdk_pads[] = {
54 MX25_PAD_FEC_MDC__FEC_MDC,
55 MX25_PAD_FEC_MDIO__FEC_MDIO,
56 MX25_PAD_FEC_TDATA0__FEC_TDATA0,
57 MX25_PAD_FEC_TDATA1__FEC_TDATA1,
58 MX25_PAD_FEC_TX_EN__FEC_TX_EN,
59 MX25_PAD_FEC_RDATA0__FEC_RDATA0,
60 MX25_PAD_FEC_RDATA1__FEC_RDATA1,
61 MX25_PAD_FEC_RX_DV__FEC_RX_DV,
62 MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
63 MX25_PAD_A17__GPIO_2_3, /* FEC_EN, GPIO 35 */
64 MX25_PAD_D12__GPIO_4_8, /* FEC_RESET_B, GPIO 104 */
65
66 /* LCD */
67 MX25_PAD_LD0__LD0,
68 MX25_PAD_LD1__LD1,
69 MX25_PAD_LD2__LD2,
70 MX25_PAD_LD3__LD3,
71 MX25_PAD_LD4__LD4,
72 MX25_PAD_LD5__LD5,
73 MX25_PAD_LD6__LD6,
74 MX25_PAD_LD7__LD7,
75 MX25_PAD_LD8__LD8,
76 MX25_PAD_LD9__LD9,
77 MX25_PAD_LD10__LD10,
78 MX25_PAD_LD11__LD11,
79 MX25_PAD_LD12__LD12,
80 MX25_PAD_LD13__LD13,
81 MX25_PAD_LD14__LD14,
82 MX25_PAD_LD15__LD15,
83 MX25_PAD_GPIO_E__LD16,
84 MX25_PAD_GPIO_F__LD17,
85 MX25_PAD_HSYNC__HSYNC,
86 MX25_PAD_VSYNC__VSYNC,
87 MX25_PAD_LSCLK__LSCLK,
88 MX25_PAD_OE_ACD__OE_ACD,
89 MX25_PAD_CONTRAST__CONTRAST,
90
91 /* Keypad */
92 MX25_PAD_KPP_ROW0__KPP_ROW0,
93 MX25_PAD_KPP_ROW1__KPP_ROW1,
94 MX25_PAD_KPP_ROW2__KPP_ROW2,
95 MX25_PAD_KPP_ROW3__KPP_ROW3,
96 MX25_PAD_KPP_COL0__KPP_COL0,
97 MX25_PAD_KPP_COL1__KPP_COL1,
98 MX25_PAD_KPP_COL2__KPP_COL2,
99 MX25_PAD_KPP_COL3__KPP_COL3,
100
101 /* SD1 */
102 MX25_PAD_SD1_CMD__SD1_CMD,
103 MX25_PAD_SD1_CLK__SD1_CLK,
104 MX25_PAD_SD1_DATA0__SD1_DATA0,
105 MX25_PAD_SD1_DATA1__SD1_DATA1,
106 MX25_PAD_SD1_DATA2__SD1_DATA2,
107 MX25_PAD_SD1_DATA3__SD1_DATA3,
108 MX25_PAD_A14__GPIO_2_0, /* WriteProtect */
109 MX25_PAD_A15__GPIO_2_1, /* CardDetect */
110
111 /* I2C1 */
112 MX25_PAD_I2C1_CLK__I2C1_CLK,
113 MX25_PAD_I2C1_DAT__I2C1_DAT,
114
115 /* CAN1 */
116 MX25_PAD_GPIO_A__CAN1_TX,
117 MX25_PAD_GPIO_B__CAN1_RX,
118 MX25_PAD_D14__GPIO_4_6, /* CAN_PWDN */
119 };
120
121 static const struct fec_platform_data mx25_fec_pdata __initconst = {
122 .phy = PHY_INTERFACE_MODE_RMII,
123 };
124
125 #define FEC_ENABLE_GPIO IMX_GPIO_NR(2, 3)
126 #define FEC_RESET_B_GPIO IMX_GPIO_NR(4, 8)
127
mx25pdk_fec_reset(void)128 static void __init mx25pdk_fec_reset(void)
129 {
130 gpio_request(FEC_ENABLE_GPIO, "FEC PHY enable");
131 gpio_request(FEC_RESET_B_GPIO, "FEC PHY reset");
132
133 gpio_direction_output(FEC_ENABLE_GPIO, 0); /* drop PHY power */
134 gpio_direction_output(FEC_RESET_B_GPIO, 0); /* assert reset */
135 udelay(2);
136
137 /* turn on PHY power and lift reset */
138 gpio_set_value(FEC_ENABLE_GPIO, 1);
139 gpio_set_value(FEC_RESET_B_GPIO, 1);
140 }
141
142 static const struct mxc_nand_platform_data
143 mx25pdk_nand_board_info __initconst = {
144 .width = 1,
145 .hw_ecc = 1,
146 .flash_bbt = 1,
147 };
148
149 static struct imx_fb_videomode mx25pdk_modes[] = {
150 {
151 .mode = {
152 .name = "CRT-VGA",
153 .refresh = 60,
154 .xres = 640,
155 .yres = 480,
156 .pixclock = 39683,
157 .left_margin = 45,
158 .right_margin = 114,
159 .upper_margin = 33,
160 .lower_margin = 11,
161 .hsync_len = 1,
162 .vsync_len = 1,
163 },
164 .bpp = 16,
165 .pcr = 0xFA208B80,
166 },
167 };
168
169 static const struct imx_fb_platform_data mx25pdk_fb_pdata __initconst = {
170 .mode = mx25pdk_modes,
171 .num_modes = ARRAY_SIZE(mx25pdk_modes),
172 .pwmr = 0x00A903FF,
173 .lscr1 = 0x00120300,
174 .dmacr = 0x00020010,
175 };
176
177 static const uint32_t mx25pdk_keymap[] = {
178 KEY(0, 0, KEY_UP),
179 KEY(0, 1, KEY_DOWN),
180 KEY(0, 2, KEY_VOLUMEDOWN),
181 KEY(0, 3, KEY_HOME),
182 KEY(1, 0, KEY_RIGHT),
183 KEY(1, 1, KEY_LEFT),
184 KEY(1, 2, KEY_ENTER),
185 KEY(1, 3, KEY_VOLUMEUP),
186 KEY(2, 0, KEY_F6),
187 KEY(2, 1, KEY_F8),
188 KEY(2, 2, KEY_F9),
189 KEY(2, 3, KEY_F10),
190 KEY(3, 0, KEY_F1),
191 KEY(3, 1, KEY_F2),
192 KEY(3, 2, KEY_F3),
193 KEY(3, 3, KEY_POWER),
194 };
195
196 static const struct matrix_keymap_data mx25pdk_keymap_data __initconst = {
197 .keymap = mx25pdk_keymap,
198 .keymap_size = ARRAY_SIZE(mx25pdk_keymap),
199 };
200
mx25pdk_usbh2_init(struct platform_device * pdev)201 static int mx25pdk_usbh2_init(struct platform_device *pdev)
202 {
203 return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERNAL_PHY);
204 }
205
206 static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
207 .init = mx25pdk_usbh2_init,
208 .portsc = MXC_EHCI_MODE_SERIAL,
209 };
210
211 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
212 .operating_mode = FSL_USB2_DR_DEVICE,
213 .phy_mode = FSL_USB2_PHY_UTMI,
214 };
215
216 static const struct imxi2c_platform_data mx25_3ds_i2c0_data __initconst = {
217 .bitrate = 100000,
218 };
219
220 #define SD1_GPIO_WP IMX_GPIO_NR(2, 0)
221 #define SD1_GPIO_CD IMX_GPIO_NR(2, 1)
222
223 static const struct esdhc_platform_data mx25pdk_esdhc_pdata __initconst = {
224 .wp_gpio = SD1_GPIO_WP,
225 .cd_gpio = SD1_GPIO_CD,
226 .wp_type = ESDHC_WP_GPIO,
227 .cd_type = ESDHC_CD_GPIO,
228 };
229
mx25pdk_init(void)230 static void __init mx25pdk_init(void)
231 {
232 imx25_soc_init();
233
234 mxc_iomux_v3_setup_multiple_pads(mx25pdk_pads,
235 ARRAY_SIZE(mx25pdk_pads));
236
237 imx25_add_imx_uart0(&uart_pdata);
238 imx25_add_fsl_usb2_udc(&otg_device_pdata);
239 imx25_add_mxc_ehci_hs(&usbh2_pdata);
240 imx25_add_mxc_nand(&mx25pdk_nand_board_info);
241 imx25_add_imxdi_rtc();
242 imx25_add_imx_fb(&mx25pdk_fb_pdata);
243 imx25_add_imx2_wdt();
244
245 mx25pdk_fec_reset();
246 imx25_add_fec(&mx25_fec_pdata);
247 imx25_add_imx_keypad(&mx25pdk_keymap_data);
248
249 imx25_add_sdhci_esdhc_imx(0, &mx25pdk_esdhc_pdata);
250 imx25_add_imx_i2c0(&mx25_3ds_i2c0_data);
251
252 gpio_request_one(MX25PDK_CAN_PWDN, GPIOF_OUT_INIT_LOW, "can-pwdn");
253 imx25_add_flexcan0();
254 }
255
mx25pdk_timer_init(void)256 static void __init mx25pdk_timer_init(void)
257 {
258 mx25_clocks_init();
259 }
260
261 MACHINE_START(MX25_3DS, "Freescale MX25PDK (3DS)")
262 /* Maintainer: Freescale Semiconductor, Inc. */
263 .atag_offset = 0x100,
264 .map_io = mx25_map_io,
265 .init_early = imx25_init_early,
266 .init_irq = mx25_init_irq,
267 .init_time = mx25pdk_timer_init,
268 .init_machine = mx25pdk_init,
269 .restart = mxc_restart,
270 MACHINE_END
271