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bd897826 AS |
1 | /* |
2 | * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. | |
3 | */ | |
4 | ||
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. | |
15 | ||
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; if not, write to the Free Software Foundation, Inc., | |
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
19 | */ | |
20 | ||
21 | #include <linux/init.h> | |
22 | #include <linux/clk.h> | |
23 | #include <linux/delay.h> | |
24 | #include <linux/gpio.h> | |
25 | #include <linux/smsc911x.h> | |
fd36dfb8 FE |
26 | #include <linux/regulator/machine.h> |
27 | #include <linux/regulator/fixed.h> | |
bd897826 AS |
28 | |
29 | #include <mach/common.h> | |
30 | #include <mach/hardware.h> | |
31 | #include <mach/iomux-mx53.h> | |
32 | ||
33 | #include <asm/mach-types.h> | |
34 | #include <asm/mach/arch.h> | |
35 | #include <asm/mach/time.h> | |
36 | ||
bd897826 AS |
37 | #include "devices-imx53.h" |
38 | ||
39 | #define ARD_ETHERNET_INT_B IMX_GPIO_NR(2, 31) | |
e3a58be3 AS |
40 | #define ARD_SD1_CD IMX_GPIO_NR(1, 1) |
41 | #define ARD_SD1_WP IMX_GPIO_NR(1, 9) | |
d23cb578 | 42 | #define ARD_I2CPORTEXP_B IMX_GPIO_NR(2, 3) |
2a90a69f DA |
43 | #define ARD_VOLUMEDOWN IMX_GPIO_NR(4, 0) |
44 | #define ARD_HOME IMX_GPIO_NR(5, 10) | |
45 | #define ARD_BACK IMX_GPIO_NR(5, 11) | |
46 | #define ARD_PROG IMX_GPIO_NR(5, 12) | |
47 | #define ARD_VOLUMEUP IMX_GPIO_NR(5, 13) | |
bd897826 AS |
48 | |
49 | static iomux_v3_cfg_t mx53_ard_pads[] = { | |
50 | /* UART1 */ | |
51 | MX53_PAD_PATA_DIOW__UART1_TXD_MUX, | |
52 | MX53_PAD_PATA_DMACK__UART1_RXD_MUX, | |
53 | /* WEIM for CS1 */ | |
54 | MX53_PAD_EIM_EB3__GPIO2_31, /* ETHERNET_INT_B */ | |
55 | MX53_PAD_EIM_D16__EMI_WEIM_D_16, | |
56 | MX53_PAD_EIM_D17__EMI_WEIM_D_17, | |
57 | MX53_PAD_EIM_D18__EMI_WEIM_D_18, | |
58 | MX53_PAD_EIM_D19__EMI_WEIM_D_19, | |
59 | MX53_PAD_EIM_D20__EMI_WEIM_D_20, | |
60 | MX53_PAD_EIM_D21__EMI_WEIM_D_21, | |
61 | MX53_PAD_EIM_D22__EMI_WEIM_D_22, | |
62 | MX53_PAD_EIM_D23__EMI_WEIM_D_23, | |
63 | MX53_PAD_EIM_D24__EMI_WEIM_D_24, | |
64 | MX53_PAD_EIM_D25__EMI_WEIM_D_25, | |
65 | MX53_PAD_EIM_D26__EMI_WEIM_D_26, | |
66 | MX53_PAD_EIM_D27__EMI_WEIM_D_27, | |
67 | MX53_PAD_EIM_D28__EMI_WEIM_D_28, | |
68 | MX53_PAD_EIM_D29__EMI_WEIM_D_29, | |
69 | MX53_PAD_EIM_D30__EMI_WEIM_D_30, | |
70 | MX53_PAD_EIM_D31__EMI_WEIM_D_31, | |
71 | MX53_PAD_EIM_DA0__EMI_NAND_WEIM_DA_0, | |
72 | MX53_PAD_EIM_DA1__EMI_NAND_WEIM_DA_1, | |
73 | MX53_PAD_EIM_DA2__EMI_NAND_WEIM_DA_2, | |
74 | MX53_PAD_EIM_DA3__EMI_NAND_WEIM_DA_3, | |
75 | MX53_PAD_EIM_DA4__EMI_NAND_WEIM_DA_4, | |
76 | MX53_PAD_EIM_DA5__EMI_NAND_WEIM_DA_5, | |
77 | MX53_PAD_EIM_DA6__EMI_NAND_WEIM_DA_6, | |
78 | MX53_PAD_EIM_OE__EMI_WEIM_OE, | |
79 | MX53_PAD_EIM_RW__EMI_WEIM_RW, | |
80 | MX53_PAD_EIM_CS1__EMI_WEIM_CS_1, | |
e3a58be3 AS |
81 | /* SDHC1 */ |
82 | MX53_PAD_SD1_CMD__ESDHC1_CMD, | |
83 | MX53_PAD_SD1_CLK__ESDHC1_CLK, | |
84 | MX53_PAD_SD1_DATA0__ESDHC1_DAT0, | |
85 | MX53_PAD_SD1_DATA1__ESDHC1_DAT1, | |
86 | MX53_PAD_SD1_DATA2__ESDHC1_DAT2, | |
87 | MX53_PAD_SD1_DATA3__ESDHC1_DAT3, | |
88 | MX53_PAD_PATA_DATA8__ESDHC1_DAT4, | |
89 | MX53_PAD_PATA_DATA9__ESDHC1_DAT5, | |
90 | MX53_PAD_PATA_DATA10__ESDHC1_DAT6, | |
91 | MX53_PAD_PATA_DATA11__ESDHC1_DAT7, | |
92 | MX53_PAD_GPIO_1__GPIO1_1, | |
93 | MX53_PAD_GPIO_9__GPIO1_9, | |
8dd7b817 AS |
94 | /* I2C2 */ |
95 | MX53_PAD_EIM_EB2__I2C2_SCL, | |
96 | MX53_PAD_KEY_ROW3__I2C2_SDA, | |
97 | /* I2C3 */ | |
98 | MX53_PAD_GPIO_3__I2C3_SCL, | |
99 | MX53_PAD_GPIO_16__I2C3_SDA, | |
2a90a69f DA |
100 | /* GPIO */ |
101 | MX53_PAD_DISP0_DAT16__GPIO5_10, /* home */ | |
102 | MX53_PAD_DISP0_DAT17__GPIO5_11, /* back */ | |
103 | MX53_PAD_DISP0_DAT18__GPIO5_12, /* prog */ | |
104 | MX53_PAD_DISP0_DAT19__GPIO5_13, /* vol up */ | |
105 | MX53_PAD_GPIO_10__GPIO4_0, /* vol down */ | |
106 | }; | |
107 | ||
108 | #define GPIO_BUTTON(gpio_num, ev_code, act_low, descr, wake) \ | |
109 | { \ | |
110 | .gpio = gpio_num, \ | |
111 | .type = EV_KEY, \ | |
112 | .code = ev_code, \ | |
113 | .active_low = act_low, \ | |
114 | .desc = "btn " descr, \ | |
115 | .wakeup = wake, \ | |
116 | } | |
117 | ||
118 | static struct gpio_keys_button ard_buttons[] = { | |
119 | GPIO_BUTTON(ARD_HOME, KEY_HOME, 1, "home", 0), | |
120 | GPIO_BUTTON(ARD_BACK, KEY_BACK, 1, "back", 0), | |
121 | GPIO_BUTTON(ARD_PROG, KEY_PROGRAM, 1, "program", 0), | |
122 | GPIO_BUTTON(ARD_VOLUMEUP, KEY_VOLUMEUP, 1, "volume-up", 0), | |
123 | GPIO_BUTTON(ARD_VOLUMEDOWN, KEY_VOLUMEDOWN, 1, "volume-down", 0), | |
124 | }; | |
125 | ||
126 | static const struct gpio_keys_platform_data ard_button_data __initconst = { | |
127 | .buttons = ard_buttons, | |
128 | .nbuttons = ARRAY_SIZE(ard_buttons), | |
bd897826 AS |
129 | }; |
130 | ||
131 | static struct resource ard_smsc911x_resources[] = { | |
132 | { | |
133 | .start = MX53_CS1_64MB_BASE_ADDR, | |
134 | .end = MX53_CS1_64MB_BASE_ADDR + SZ_32M - 1, | |
135 | .flags = IORESOURCE_MEM, | |
136 | }, | |
137 | { | |
e309fb18 SG |
138 | .start = IMX_GPIO_TO_IRQ(ARD_ETHERNET_INT_B), |
139 | .end = IMX_GPIO_TO_IRQ(ARD_ETHERNET_INT_B), | |
bd897826 AS |
140 | .flags = IORESOURCE_IRQ, |
141 | }, | |
142 | }; | |
143 | ||
144 | struct smsc911x_platform_config ard_smsc911x_config = { | |
145 | .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, | |
146 | .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, | |
147 | .flags = SMSC911X_USE_32BIT, | |
148 | }; | |
149 | ||
150 | static struct platform_device ard_smsc_lan9220_device = { | |
151 | .name = "smsc911x", | |
152 | .id = -1, | |
153 | .num_resources = ARRAY_SIZE(ard_smsc911x_resources), | |
154 | .resource = ard_smsc911x_resources, | |
155 | .dev = { | |
156 | .platform_data = &ard_smsc911x_config, | |
157 | }, | |
158 | }; | |
159 | ||
e3a58be3 AS |
160 | static const struct esdhc_platform_data mx53_ard_sd1_data __initconst = { |
161 | .cd_gpio = ARD_SD1_CD, | |
162 | .wp_gpio = ARD_SD1_WP, | |
163 | }; | |
164 | ||
8dd7b817 AS |
165 | static struct imxi2c_platform_data mx53_ard_i2c2_data = { |
166 | .bitrate = 50000, | |
167 | }; | |
168 | ||
169 | static struct imxi2c_platform_data mx53_ard_i2c3_data = { | |
170 | .bitrate = 400000, | |
171 | }; | |
172 | ||
bd897826 AS |
173 | static void __init mx53_ard_io_init(void) |
174 | { | |
bd897826 AS |
175 | gpio_request(ARD_ETHERNET_INT_B, "eth-int-b"); |
176 | gpio_direction_input(ARD_ETHERNET_INT_B); | |
8dd7b817 AS |
177 | |
178 | gpio_request(ARD_I2CPORTEXP_B, "i2cptexp-rst"); | |
179 | gpio_direction_output(ARD_I2CPORTEXP_B, 1); | |
bd897826 AS |
180 | } |
181 | ||
8dd7b817 | 182 | /* Config CS1 settings for ethernet controller */ |
bd897826 AS |
183 | static int weim_cs_config(void) |
184 | { | |
185 | u32 reg; | |
186 | void __iomem *weim_base, *iomuxc_base; | |
187 | ||
188 | weim_base = ioremap(MX53_WEIM_BASE_ADDR, SZ_4K); | |
189 | if (!weim_base) | |
190 | return -ENOMEM; | |
191 | ||
192 | iomuxc_base = ioremap(MX53_IOMUXC_BASE_ADDR, SZ_4K); | |
945f82f2 JL |
193 | if (!iomuxc_base) { |
194 | iounmap(weim_base); | |
bd897826 | 195 | return -ENOMEM; |
945f82f2 | 196 | } |
bd897826 AS |
197 | |
198 | /* CS1 timings for LAN9220 */ | |
199 | writel(0x20001, (weim_base + 0x18)); | |
200 | writel(0x0, (weim_base + 0x1C)); | |
201 | writel(0x16000202, (weim_base + 0x20)); | |
202 | writel(0x00000002, (weim_base + 0x24)); | |
203 | writel(0x16002082, (weim_base + 0x28)); | |
204 | writel(0x00000000, (weim_base + 0x2C)); | |
205 | writel(0x00000000, (weim_base + 0x90)); | |
206 | ||
207 | /* specify 64 MB on CS1 and CS0 on GPR1 */ | |
208 | reg = readl(iomuxc_base + 0x4); | |
209 | reg &= ~0x3F; | |
210 | reg |= 0x1B; | |
211 | writel(reg, (iomuxc_base + 0x4)); | |
212 | ||
213 | iounmap(iomuxc_base); | |
214 | iounmap(weim_base); | |
215 | ||
216 | return 0; | |
217 | } | |
218 | ||
fd36dfb8 FE |
219 | static struct regulator_consumer_supply dummy_supplies[] = { |
220 | REGULATOR_SUPPLY("vdd33a", "smsc911x"), | |
221 | REGULATOR_SUPPLY("vddvario", "smsc911x"), | |
222 | }; | |
223 | ||
73d2b4cd SG |
224 | void __init imx53_ard_common_init(void) |
225 | { | |
226 | mxc_iomux_v3_setup_multiple_pads(mx53_ard_pads, | |
227 | ARRAY_SIZE(mx53_ard_pads)); | |
228 | weim_cs_config(); | |
229 | } | |
230 | ||
bd897826 AS |
231 | static struct platform_device *devices[] __initdata = { |
232 | &ard_smsc_lan9220_device, | |
233 | }; | |
234 | ||
235 | static void __init mx53_ard_board_init(void) | |
236 | { | |
237 | imx53_soc_init(); | |
238 | imx53_add_imx_uart(0, NULL); | |
239 | ||
73d2b4cd | 240 | imx53_ard_common_init(); |
bd897826 | 241 | mx53_ard_io_init(); |
fd36dfb8 | 242 | regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); |
bd897826 | 243 | platform_add_devices(devices, ARRAY_SIZE(devices)); |
e3a58be3 AS |
244 | |
245 | imx53_add_sdhci_esdhc_imx(0, &mx53_ard_sd1_data); | |
bec31a85 | 246 | imx53_add_imx2_wdt(0); |
8dd7b817 AS |
247 | imx53_add_imx_i2c(1, &mx53_ard_i2c2_data); |
248 | imx53_add_imx_i2c(2, &mx53_ard_i2c3_data); | |
2a90a69f | 249 | imx_add_gpio_keys(&ard_button_data); |
e97e303d | 250 | imx53_add_ahci_imx(); |
bd897826 AS |
251 | } |
252 | ||
253 | static void __init mx53_ard_timer_init(void) | |
254 | { | |
255 | mx53_clocks_init(32768, 24000000, 22579200, 0); | |
256 | } | |
257 | ||
258 | static struct sys_timer mx53_ard_timer = { | |
259 | .init = mx53_ard_timer_init, | |
260 | }; | |
261 | ||
262 | MACHINE_START(MX53_ARD, "Freescale MX53 ARD Board") | |
263 | .map_io = mx53_map_io, | |
264 | .init_early = imx53_init_early, | |
265 | .init_irq = mx53_init_irq, | |
ffa2ea3f | 266 | .handle_irq = imx53_handle_irq, |
bd897826 AS |
267 | .timer = &mx53_ard_timer, |
268 | .init_machine = mx53_ard_board_init, | |
65ea7884 | 269 | .restart = mxc_restart, |
bd897826 | 270 | MACHINE_END |