1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
|
/*
* Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/smsc911x.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/iomux-mx53.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include "devices-imx53.h"
#define ARD_ETHERNET_INT_B IMX_GPIO_NR(2, 31)
#define ARD_SD1_CD IMX_GPIO_NR(1, 1)
#define ARD_SD1_WP IMX_GPIO_NR(1, 9)
#define ARD_I2CPORTEXP_B IMX_GPIO_NR(2, 3)
#define ARD_VOLUMEDOWN IMX_GPIO_NR(4, 0)
#define ARD_HOME IMX_GPIO_NR(5, 10)
#define ARD_BACK IMX_GPIO_NR(5, 11)
#define ARD_PROG IMX_GPIO_NR(5, 12)
#define ARD_VOLUMEUP IMX_GPIO_NR(5, 13)
static iomux_v3_cfg_t mx53_ard_pads[] = {
/* UART1 */
MX53_PAD_PATA_DIOW__UART1_TXD_MUX,
MX53_PAD_PATA_DMACK__UART1_RXD_MUX,
/* WEIM for CS1 */
MX53_PAD_EIM_EB3__GPIO2_31, /* ETHERNET_INT_B */
MX53_PAD_EIM_D16__EMI_WEIM_D_16,
MX53_PAD_EIM_D17__EMI_WEIM_D_17,
MX53_PAD_EIM_D18__EMI_WEIM_D_18,
MX53_PAD_EIM_D19__EMI_WEIM_D_19,
MX53_PAD_EIM_D20__EMI_WEIM_D_20,
MX53_PAD_EIM_D21__EMI_WEIM_D_21,
MX53_PAD_EIM_D22__EMI_WEIM_D_22,
MX53_PAD_EIM_D23__EMI_WEIM_D_23,
MX53_PAD_EIM_D24__EMI_WEIM_D_24,
MX53_PAD_EIM_D25__EMI_WEIM_D_25,
MX53_PAD_EIM_D26__EMI_WEIM_D_26,
MX53_PAD_EIM_D27__EMI_WEIM_D_27,
MX53_PAD_EIM_D28__EMI_WEIM_D_28,
MX53_PAD_EIM_D29__EMI_WEIM_D_29,
MX53_PAD_EIM_D30__EMI_WEIM_D_30,
MX53_PAD_EIM_D31__EMI_WEIM_D_31,
MX53_PAD_EIM_DA0__EMI_NAND_WEIM_DA_0,
MX53_PAD_EIM_DA1__EMI_NAND_WEIM_DA_1,
MX53_PAD_EIM_DA2__EMI_NAND_WEIM_DA_2,
MX53_PAD_EIM_DA3__EMI_NAND_WEIM_DA_3,
MX53_PAD_EIM_DA4__EMI_NAND_WEIM_DA_4,
MX53_PAD_EIM_DA5__EMI_NAND_WEIM_DA_5,
MX53_PAD_EIM_DA6__EMI_NAND_WEIM_DA_6,
MX53_PAD_EIM_OE__EMI_WEIM_OE,
MX53_PAD_EIM_RW__EMI_WEIM_RW,
MX53_PAD_EIM_CS1__EMI_WEIM_CS_1,
/* SDHC1 */
MX53_PAD_SD1_CMD__ESDHC1_CMD,
MX53_PAD_SD1_CLK__ESDHC1_CLK,
MX53_PAD_SD1_DATA0__ESDHC1_DAT0,
MX53_PAD_SD1_DATA1__ESDHC1_DAT1,
MX53_PAD_SD1_DATA2__ESDHC1_DAT2,
MX53_PAD_SD1_DATA3__ESDHC1_DAT3,
MX53_PAD_PATA_DATA8__ESDHC1_DAT4,
MX53_PAD_PATA_DATA9__ESDHC1_DAT5,
MX53_PAD_PATA_DATA10__ESDHC1_DAT6,
MX53_PAD_PATA_DATA11__ESDHC1_DAT7,
MX53_PAD_GPIO_1__GPIO1_1,
MX53_PAD_GPIO_9__GPIO1_9,
/* I2C2 */
MX53_PAD_EIM_EB2__I2C2_SCL,
MX53_PAD_KEY_ROW3__I2C2_SDA,
/* I2C3 */
MX53_PAD_GPIO_3__I2C3_SCL,
MX53_PAD_GPIO_16__I2C3_SDA,
/* GPIO */
MX53_PAD_DISP0_DAT16__GPIO5_10, /* home */
MX53_PAD_DISP0_DAT17__GPIO5_11, /* back */
MX53_PAD_DISP0_DAT18__GPIO5_12, /* prog */
MX53_PAD_DISP0_DAT19__GPIO5_13, /* vol up */
MX53_PAD_GPIO_10__GPIO4_0, /* vol down */
};
#define GPIO_BUTTON(gpio_num, ev_code, act_low, descr, wake) \
{ \
.gpio = gpio_num, \
.type = EV_KEY, \
.code = ev_code, \
.active_low = act_low, \
.desc = "btn " descr, \
.wakeup = wake, \
}
static struct gpio_keys_button ard_buttons[] = {
GPIO_BUTTON(ARD_HOME, KEY_HOME, 1, "home", 0),
GPIO_BUTTON(ARD_BACK, KEY_BACK, 1, "back", 0),
GPIO_BUTTON(ARD_PROG, KEY_PROGRAM, 1, "program", 0),
GPIO_BUTTON(ARD_VOLUMEUP, KEY_VOLUMEUP, 1, "volume-up", 0),
GPIO_BUTTON(ARD_VOLUMEDOWN, KEY_VOLUMEDOWN, 1, "volume-down", 0),
};
static const struct gpio_keys_platform_data ard_button_data __initconst = {
.buttons = ard_buttons,
.nbuttons = ARRAY_SIZE(ard_buttons),
};
static struct resource ard_smsc911x_resources[] = {
{
.start = MX53_CS1_64MB_BASE_ADDR,
.end = MX53_CS1_64MB_BASE_ADDR + SZ_32M - 1,
.flags = IORESOURCE_MEM,
},
{
.start = IMX_GPIO_TO_IRQ(ARD_ETHERNET_INT_B),
.end = IMX_GPIO_TO_IRQ(ARD_ETHERNET_INT_B),
.flags = IORESOURCE_IRQ,
},
};
struct smsc911x_platform_config ard_smsc911x_config = {
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
.flags = SMSC911X_USE_32BIT,
};
static struct platform_device ard_smsc_lan9220_device = {
.name = "smsc911x",
.id = -1,
.num_resources = ARRAY_SIZE(ard_smsc911x_resources),
.resource = ard_smsc911x_resources,
.dev = {
.platform_data = &ard_smsc911x_config,
},
};
static const struct esdhc_platform_data mx53_ard_sd1_data __initconst = {
.cd_gpio = ARD_SD1_CD,
.wp_gpio = ARD_SD1_WP,
};
static struct imxi2c_platform_data mx53_ard_i2c2_data = {
.bitrate = 50000,
};
static struct imxi2c_platform_data mx53_ard_i2c3_data = {
.bitrate = 400000,
};
static void __init mx53_ard_io_init(void)
{
gpio_request(ARD_ETHERNET_INT_B, "eth-int-b");
gpio_direction_input(ARD_ETHERNET_INT_B);
gpio_request(ARD_I2CPORTEXP_B, "i2cptexp-rst");
gpio_direction_output(ARD_I2CPORTEXP_B, 1);
}
/* Config CS1 settings for ethernet controller */
static int weim_cs_config(void)
{
u32 reg;
void __iomem *weim_base, *iomuxc_base;
weim_base = ioremap(MX53_WEIM_BASE_ADDR, SZ_4K);
if (!weim_base)
return -ENOMEM;
iomuxc_base = ioremap(MX53_IOMUXC_BASE_ADDR, SZ_4K);
if (!iomuxc_base) {
iounmap(weim_base);
return -ENOMEM;
}
/* CS1 timings for LAN9220 */
writel(0x20001, (weim_base + 0x18));
writel(0x0, (weim_base + 0x1C));
writel(0x16000202, (weim_base + 0x20));
writel(0x00000002, (weim_base + 0x24));
writel(0x16002082, (weim_base + 0x28));
writel(0x00000000, (weim_base + 0x2C));
writel(0x00000000, (weim_base + 0x90));
/* specify 64 MB on CS1 and CS0 on GPR1 */
reg = readl(iomuxc_base + 0x4);
reg &= ~0x3F;
reg |= 0x1B;
writel(reg, (iomuxc_base + 0x4));
iounmap(iomuxc_base);
iounmap(weim_base);
return 0;
}
static struct regulator_consumer_supply dummy_supplies[] = {
REGULATOR_SUPPLY("vdd33a", "smsc911x"),
REGULATOR_SUPPLY("vddvario", "smsc911x"),
};
void __init imx53_ard_common_init(void)
{
mxc_iomux_v3_setup_multiple_pads(mx53_ard_pads,
ARRAY_SIZE(mx53_ard_pads));
weim_cs_config();
}
static struct platform_device *devices[] __initdata = {
&ard_smsc_lan9220_device,
};
static void __init mx53_ard_board_init(void)
{
imx53_soc_init();
imx53_add_imx_uart(0, NULL);
imx53_ard_common_init();
mx53_ard_io_init();
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
platform_add_devices(devices, ARRAY_SIZE(devices));
imx53_add_sdhci_esdhc_imx(0, &mx53_ard_sd1_data);
imx53_add_imx2_wdt(0, NULL);
imx53_add_imx_i2c(1, &mx53_ard_i2c2_data);
imx53_add_imx_i2c(2, &mx53_ard_i2c3_data);
imx_add_gpio_keys(&ard_button_data);
imx53_add_ahci_imx();
}
static void __init mx53_ard_timer_init(void)
{
mx53_clocks_init(32768, 24000000, 22579200, 0);
}
static struct sys_timer mx53_ard_timer = {
.init = mx53_ard_timer_init,
};
MACHINE_START(MX53_ARD, "Freescale MX53 ARD Board")
.map_io = mx53_map_io,
.init_early = imx53_init_early,
.init_irq = mx53_init_irq,
.handle_irq = imx53_handle_irq,
.timer = &mx53_ard_timer,
.init_machine = mx53_ard_board_init,
.restart = mxc_restart,
MACHINE_END
|
