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
 55static 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) */
 60static 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
 75static 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
 82static struct twl4030_usb_data omap3logic_usb_data = {
 83	.usb_mode	= T2_USB_MODE_ULPI,
 84};
 85
 86
 87static 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
 94static int __init omap3logic_i2c_init(void)
 95{
 96	omap3_pmic_init("twl4030", &omap3logic_twldata);
 97	return 0;
 98}
 99
100static 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
111static 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
132static 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).            */
141static 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
163static 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
184static 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
203static struct regulator_consumer_supply dummy_supplies[] = {
204	REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
205	REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
206};
207
208static 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
227MACHINE_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,
238MACHINE_END
239
240MACHINE_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,
251MACHINE_END