1 /*
2 * linux/arch/arm/mach-omap2/board-omap3logic.c
3 *
4 * Copyright (C) 2010 Li-Pro.Net
5 * Stephan Linz <linz@li-pro.net>
6 *
7 * Copyright (C) 2010-2012 Logic Product Development, Inc.
8 * Peter Barada <peter.barada@logicpd.com>
9 * Ashwin BIhari <ashwin.bihari@logicpd.com>
10 *
11 * Modified from Beagle, EVM, and RX51
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
16 */
17
18 #include <linux/kernel.h>
19 #include <linux/init.h>
20 #include <linux/platform_device.h>
21 #include <linux/delay.h>
22 #include <linux/err.h>
23 #include <linux/clk.h>
24 #include <linux/io.h>
25 #include <linux/gpio.h>
26
27 #include <linux/regulator/fixed.h>
28 #include <linux/regulator/machine.h>
29
30 #include <linux/i2c/twl.h>
31 #include <linux/mmc/host.h>
32 #include <linux/usb/phy.h>
33
34 #include <asm/mach-types.h>
35 #include <asm/mach/arch.h>
36 #include <asm/mach/map.h>
37
38 #include "common.h"
39 #include "mux.h"
40 #include "hsmmc.h"
41 #include "control.h"
42 #include "common-board-devices.h"
43 #include "gpmc.h"
44 #include "gpmc-smsc911x.h"
45
46 #define OMAP3LOGIC_SMSC911X_CS 1
47
48 #define OMAP3530_LV_SOM_MMC_GPIO_CD 110
49 #define OMAP3530_LV_SOM_MMC_GPIO_WP 126
50 #define OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ 152
51
52 #define OMAP3_TORPEDO_MMC_GPIO_CD 127
53 #define OMAP3_TORPEDO_SMSC911X_GPIO_IRQ 129
54
55 static struct regulator_consumer_supply omap3logic_vmmc1_supply[] = {
56 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
57 };
58
59 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
60 static struct regulator_init_data omap3logic_vmmc1 = {
61 .constraints = {
62 .name = "VMMC1",
63 .min_uV = 1850000,
64 .max_uV = 3150000,
65 .valid_modes_mask = REGULATOR_MODE_NORMAL
66 | REGULATOR_MODE_STANDBY,
67 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
68 | REGULATOR_CHANGE_MODE
69 | REGULATOR_CHANGE_STATUS,
70 },
71 .num_consumer_supplies = ARRAY_SIZE(omap3logic_vmmc1_supply),
72 .consumer_supplies = omap3logic_vmmc1_supply,
73 };
74
75 static struct twl4030_gpio_platform_data omap3logic_gpio_data = {
76 .use_leds = true,
77 .pullups = BIT(1),
78 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8)
79 | BIT(13) | BIT(15) | BIT(16) | BIT(17),
80 };
81
82 static struct twl4030_usb_data omap3logic_usb_data = {
83 .usb_mode = T2_USB_MODE_ULPI,
84 };
85
86
87 static struct twl4030_platform_data omap3logic_twldata = {
88 /* platform_data for children goes here */
89 .gpio = &omap3logic_gpio_data,
90 .vmmc1 = &omap3logic_vmmc1,
91 .usb = &omap3logic_usb_data,
92 };
93
omap3logic_i2c_init(void)94 static int __init omap3logic_i2c_init(void)
95 {
96 omap3_pmic_init("twl4030", &omap3logic_twldata);
97 return 0;
98 }
99
100 static struct omap2_hsmmc_info __initdata board_mmc_info[] = {
101 {
102 .name = "external",
103 .mmc = 1,
104 .caps = MMC_CAP_4_BIT_DATA,
105 .gpio_cd = -EINVAL,
106 .gpio_wp = -EINVAL,
107 },
108 {} /* Terminator */
109 };
110
board_mmc_init(void)111 static void __init board_mmc_init(void)
112 {
113 if (machine_is_omap3530_lv_som()) {
114 /* OMAP3530 LV SOM board */
115 board_mmc_info[0].gpio_cd = OMAP3530_LV_SOM_MMC_GPIO_CD;
116 board_mmc_info[0].gpio_wp = OMAP3530_LV_SOM_MMC_GPIO_WP;
117 omap_mux_init_signal("gpio_110", OMAP_PIN_OUTPUT);
118 omap_mux_init_signal("gpio_126", OMAP_PIN_OUTPUT);
119 } else if (machine_is_omap3_torpedo()) {
120 /* OMAP3 Torpedo board */
121 board_mmc_info[0].gpio_cd = OMAP3_TORPEDO_MMC_GPIO_CD;
122 omap_mux_init_signal("gpio_127", OMAP_PIN_OUTPUT);
123 } else {
124 /* unsupported board */
125 printk(KERN_ERR "%s(): unknown machine type\n", __func__);
126 return;
127 }
128
129 omap_hsmmc_init(board_mmc_info);
130 }
131
132 static struct omap_smsc911x_platform_data __initdata board_smsc911x_data = {
133 .cs = OMAP3LOGIC_SMSC911X_CS,
134 .gpio_irq = -EINVAL,
135 .gpio_reset = -EINVAL,
136 };
137
138 /* TODO/FIXME (comment by Peter Barada, LogicPD):
139 * Fix the PBIAS voltage for Torpedo MMC1 pins that
140 * are used for other needs (IRQs, etc). */
omap3torpedo_fix_pbias_voltage(void)141 static void omap3torpedo_fix_pbias_voltage(void)
142 {
143 u16 control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
144 u32 reg;
145
146 if (machine_is_omap3_torpedo())
147 {
148 /* Set the bias for the pin */
149 reg = omap_ctrl_readl(control_pbias_offset);
150
151 reg &= ~OMAP343X_PBIASLITEPWRDNZ1;
152 omap_ctrl_writel(reg, control_pbias_offset);
153
154 /* 100ms delay required for PBIAS configuration */
155 msleep(100);
156
157 reg |= OMAP343X_PBIASLITEVMODE1;
158 reg |= OMAP343X_PBIASLITEPWRDNZ1;
159 omap_ctrl_writel(reg | 0x300, control_pbias_offset);
160 }
161 }
162
board_smsc911x_init(void)163 static inline void __init board_smsc911x_init(void)
164 {
165 if (machine_is_omap3530_lv_som()) {
166 /* OMAP3530 LV SOM board */
167 board_smsc911x_data.gpio_irq =
168 OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ;
169 omap_mux_init_signal("gpio_152", OMAP_PIN_INPUT);
170 } else if (machine_is_omap3_torpedo()) {
171 /* OMAP3 Torpedo board */
172 board_smsc911x_data.gpio_irq = OMAP3_TORPEDO_SMSC911X_GPIO_IRQ;
173 omap_mux_init_signal("gpio_129", OMAP_PIN_INPUT);
174 } else {
175 /* unsupported board */
176 printk(KERN_ERR "%s(): unknown machine type\n", __func__);
177 return;
178 }
179
180 gpmc_smsc911x_init(&board_smsc911x_data);
181 }
182
183 #ifdef CONFIG_OMAP_MUX
184 static struct omap_board_mux board_mux[] __initdata = {
185 /* mUSB */
186 OMAP3_MUX(HSUSB0_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
187 OMAP3_MUX(HSUSB0_STP, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
188 OMAP3_MUX(HSUSB0_DIR, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
189 OMAP3_MUX(HSUSB0_NXT, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
190 OMAP3_MUX(HSUSB0_DATA0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
191 OMAP3_MUX(HSUSB0_DATA1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
192 OMAP3_MUX(HSUSB0_DATA2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
193 OMAP3_MUX(HSUSB0_DATA3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
194 OMAP3_MUX(HSUSB0_DATA4, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
195 OMAP3_MUX(HSUSB0_DATA5, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
196 OMAP3_MUX(HSUSB0_DATA6, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
197 OMAP3_MUX(HSUSB0_DATA7, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
198
199 { .reg_offset = OMAP_MUX_TERMINATOR },
200 };
201 #endif
202
203 static struct regulator_consumer_supply dummy_supplies[] = {
204 REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
205 REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
206 };
207
omap3logic_init(void)208 static void __init omap3logic_init(void)
209 {
210 regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
211 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
212 omap3torpedo_fix_pbias_voltage();
213 omap3logic_i2c_init();
214 omap_serial_init();
215 omap_sdrc_init(NULL, NULL);
216 board_mmc_init();
217 board_smsc911x_init();
218
219 usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
220 usb_musb_init(NULL);
221
222 /* Ensure SDRC pins are mux'd for self-refresh */
223 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
224 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
225 }
226
227 MACHINE_START(OMAP3_TORPEDO, "Logic OMAP3 Torpedo board")
228 .atag_offset = 0x100,
229 .reserve = omap_reserve,
230 .map_io = omap3_map_io,
231 .init_early = omap35xx_init_early,
232 .init_irq = omap3_init_irq,
233 .handle_irq = omap3_intc_handle_irq,
234 .init_machine = omap3logic_init,
235 .init_late = omap35xx_init_late,
236 .init_time = omap3_sync32k_timer_init,
237 .restart = omap3xxx_restart,
238 MACHINE_END
239
240 MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
241 .atag_offset = 0x100,
242 .reserve = omap_reserve,
243 .map_io = omap3_map_io,
244 .init_early = omap35xx_init_early,
245 .init_irq = omap3_init_irq,
246 .handle_irq = omap3_intc_handle_irq,
247 .init_machine = omap3logic_init,
248 .init_late = omap35xx_init_late,
249 .init_time = omap3_sync32k_timer_init,
250 .restart = omap3xxx_restart,
251 MACHINE_END
252