1/*
2 *  linux/arch/arm/mach-mmp/brownstone.c
3 *
4 *  Support for the Marvell Brownstone Development Platform.
5 *
6 *  Copyright (C) 2009-2010 Marvell International Ltd.
7 *
8 *  This program is free software; you can redistribute it and/or modify
9 *  it under the terms of the GNU General Public License version 2 as
10 *  publishhed by the Free Software Foundation.
11 */
12
13#include <linux/init.h>
14#include <linux/kernel.h>
15#include <linux/platform_device.h>
16#include <linux/io.h>
17#include <linux/gpio-pxa.h>
18#include <linux/regulator/machine.h>
19#include <linux/regulator/max8649.h>
20#include <linux/regulator/fixed.h>
21#include <linux/mfd/max8925.h>
22
23#include <asm/mach-types.h>
24#include <asm/mach/arch.h>
25#include <mach/addr-map.h>
26#include <mach/mfp-mmp2.h>
27#include <mach/mmp2.h>
28#include <mach/irqs.h>
29
30#include "common.h"
31
32#define BROWNSTONE_NR_IRQS	(MMP_NR_IRQS + 40)
33
34#define GPIO_5V_ENABLE		(89)
35
36static unsigned long brownstone_pin_config[] __initdata = {
37	/* UART1 */
38	GPIO29_UART1_RXD,
39	GPIO30_UART1_TXD,
40
41	/* UART3 */
42	GPIO51_UART3_RXD,
43	GPIO52_UART3_TXD,
44
45	/* DFI */
46	GPIO168_DFI_D0,
47	GPIO167_DFI_D1,
48	GPIO166_DFI_D2,
49	GPIO165_DFI_D3,
50	GPIO107_DFI_D4,
51	GPIO106_DFI_D5,
52	GPIO105_DFI_D6,
53	GPIO104_DFI_D7,
54	GPIO111_DFI_D8,
55	GPIO164_DFI_D9,
56	GPIO163_DFI_D10,
57	GPIO162_DFI_D11,
58	GPIO161_DFI_D12,
59	GPIO110_DFI_D13,
60	GPIO109_DFI_D14,
61	GPIO108_DFI_D15,
62	GPIO143_ND_nCS0,
63	GPIO144_ND_nCS1,
64	GPIO147_ND_nWE,
65	GPIO148_ND_nRE,
66	GPIO150_ND_ALE,
67	GPIO149_ND_CLE,
68	GPIO112_ND_RDY0,
69	GPIO160_ND_RDY1,
70
71	/* PMIC */
72	PMIC_PMIC_INT | MFP_LPM_EDGE_FALL,
73
74	/* MMC0 */
75	GPIO131_MMC1_DAT3 | MFP_PULL_HIGH,
76	GPIO132_MMC1_DAT2 | MFP_PULL_HIGH,
77	GPIO133_MMC1_DAT1 | MFP_PULL_HIGH,
78	GPIO134_MMC1_DAT0 | MFP_PULL_HIGH,
79	GPIO136_MMC1_CMD | MFP_PULL_HIGH,
80	GPIO139_MMC1_CLK,
81	GPIO140_MMC1_CD | MFP_PULL_LOW,
82	GPIO141_MMC1_WP | MFP_PULL_LOW,
83
84	/* MMC1 */
85	GPIO37_MMC2_DAT3 | MFP_PULL_HIGH,
86	GPIO38_MMC2_DAT2 | MFP_PULL_HIGH,
87	GPIO39_MMC2_DAT1 | MFP_PULL_HIGH,
88	GPIO40_MMC2_DAT0 | MFP_PULL_HIGH,
89	GPIO41_MMC2_CMD | MFP_PULL_HIGH,
90	GPIO42_MMC2_CLK,
91
92	/* MMC2 */
93	GPIO165_MMC3_DAT7 | MFP_PULL_HIGH,
94	GPIO162_MMC3_DAT6 | MFP_PULL_HIGH,
95	GPIO166_MMC3_DAT5 | MFP_PULL_HIGH,
96	GPIO163_MMC3_DAT4 | MFP_PULL_HIGH,
97	GPIO167_MMC3_DAT3 | MFP_PULL_HIGH,
98	GPIO164_MMC3_DAT2 | MFP_PULL_HIGH,
99	GPIO168_MMC3_DAT1 | MFP_PULL_HIGH,
100	GPIO111_MMC3_DAT0 | MFP_PULL_HIGH,
101	GPIO112_MMC3_CMD | MFP_PULL_HIGH,
102	GPIO151_MMC3_CLK,
103
104	/* 5V regulator */
105	GPIO89_GPIO,
106};
107
108static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
109	.irq_base	= MMP_GPIO_TO_IRQ(0),
110};
111
112static struct regulator_consumer_supply max8649_supply[] = {
113	REGULATOR_SUPPLY("vcc_core", NULL),
114};
115
116static struct regulator_init_data max8649_init_data = {
117	.constraints	= {
118		.name		= "vcc_core range",
119		.min_uV		= 1150000,
120		.max_uV		= 1280000,
121		.always_on	= 1,
122		.boot_on	= 1,
123		.valid_ops_mask	= REGULATOR_CHANGE_VOLTAGE,
124	},
125	.num_consumer_supplies	= 1,
126	.consumer_supplies	= &max8649_supply[0],
127};
128
129static struct max8649_platform_data brownstone_max8649_info = {
130	.mode		= 2,	/* VID1 = 1, VID0 = 0 */
131	.extclk		= 0,
132	.ramp_timing	= MAX8649_RAMP_32MV,
133	.regulator	= &max8649_init_data,
134};
135
136static struct regulator_consumer_supply brownstone_v_5vp_supplies[] = {
137	REGULATOR_SUPPLY("v_5vp", NULL),
138};
139
140static struct regulator_init_data brownstone_v_5vp_data = {
141	.constraints	= {
142		.valid_ops_mask		= REGULATOR_CHANGE_STATUS,
143	},
144	.num_consumer_supplies	= ARRAY_SIZE(brownstone_v_5vp_supplies),
145	.consumer_supplies	= brownstone_v_5vp_supplies,
146};
147
148static struct fixed_voltage_config brownstone_v_5vp = {
149	.supply_name		= "v_5vp",
150	.microvolts		= 5000000,
151	.gpio			= GPIO_5V_ENABLE,
152	.enable_high		= 1,
153	.enabled_at_boot	= 1,
154	.init_data		= &brownstone_v_5vp_data,
155};
156
157static struct platform_device brownstone_v_5vp_device = {
158	.name		= "reg-fixed-voltage",
159	.id		= 1,
160	.dev = {
161		.platform_data = &brownstone_v_5vp,
162	},
163};
164
165static struct max8925_platform_data brownstone_max8925_info = {
166	.irq_base		= MMP_NR_IRQS,
167};
168
169static struct i2c_board_info brownstone_twsi1_info[] = {
170	[0] = {
171		.type		= "max8649",
172		.addr		= 0x60,
173		.platform_data	= &brownstone_max8649_info,
174	},
175	[1] = {
176		.type		= "max8925",
177		.addr		= 0x3c,
178		.irq		= IRQ_MMP2_PMIC,
179		.platform_data	= &brownstone_max8925_info,
180	},
181};
182
183static struct sdhci_pxa_platdata mmp2_sdh_platdata_mmc0 = {
184	.clk_delay_cycles = 0x1f,
185};
186
187static struct sdhci_pxa_platdata mmp2_sdh_platdata_mmc2 = {
188	.clk_delay_cycles = 0x1f,
189	.flags = PXA_FLAG_CARD_PERMANENT
190		| PXA_FLAG_SD_8_BIT_CAPABLE_SLOT,
191};
192
193static struct sram_platdata mmp2_asram_platdata = {
194	.pool_name	= "asram",
195	.granularity	= SRAM_GRANULARITY,
196};
197
198static struct sram_platdata mmp2_isram_platdata = {
199	.pool_name	= "isram",
200	.granularity	= SRAM_GRANULARITY,
201};
202
203static void __init brownstone_init(void)
204{
205	mfp_config(ARRAY_AND_SIZE(brownstone_pin_config));
206
207	/* on-chip devices */
208	mmp2_add_uart(1);
209	mmp2_add_uart(3);
210	platform_device_add_data(&mmp2_device_gpio, &mmp2_gpio_pdata,
211				 sizeof(struct pxa_gpio_platform_data));
212	platform_device_register(&mmp2_device_gpio);
213	mmp2_add_twsi(1, NULL, ARRAY_AND_SIZE(brownstone_twsi1_info));
214	mmp2_add_sdhost(0, &mmp2_sdh_platdata_mmc0); /* SD/MMC */
215	mmp2_add_sdhost(2, &mmp2_sdh_platdata_mmc2); /* eMMC */
216	mmp2_add_asram(&mmp2_asram_platdata);
217	mmp2_add_isram(&mmp2_isram_platdata);
218
219	/* enable 5v regulator */
220	platform_device_register(&brownstone_v_5vp_device);
221}
222
223MACHINE_START(BROWNSTONE, "Brownstone Development Platform")
224	/* Maintainer: Haojian Zhuang <haojian.zhuang@marvell.com> */
225	.map_io		= mmp_map_io,
226	.nr_irqs	= BROWNSTONE_NR_IRQS,
227	.init_irq	= mmp2_init_irq,
228	.init_time	= mmp2_timer_init,
229	.init_machine	= brownstone_init,
230	.restart	= mmp_restart,
231MACHINE_END
232