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 "addr-map.h"
26 #include "mfp-mmp2.h"
27 #include "mmp2.h"
28 #include "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
36 static 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
108 static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
109 .irq_base = MMP_GPIO_TO_IRQ(0),
110 };
111
112 static struct regulator_consumer_supply max8649_supply[] = {
113 REGULATOR_SUPPLY("vcc_core", NULL),
114 };
115
116 static 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
129 static 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
136 static struct regulator_consumer_supply brownstone_v_5vp_supplies[] = {
137 REGULATOR_SUPPLY("v_5vp", NULL),
138 };
139
140 static 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
148 static 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
157 static 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
165 static struct max8925_platform_data brownstone_max8925_info = {
166 .irq_base = MMP_NR_IRQS,
167 };
168
169 static 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
183 static struct sdhci_pxa_platdata mmp2_sdh_platdata_mmc0 = {
184 .clk_delay_cycles = 0x1f,
185 };
186
187 static 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
193 static struct sram_platdata mmp2_asram_platdata = {
194 .pool_name = "asram",
195 .granularity = SRAM_GRANULARITY,
196 };
197
198 static struct sram_platdata mmp2_isram_platdata = {
199 .pool_name = "isram",
200 .granularity = SRAM_GRANULARITY,
201 };
202
brownstone_init(void)203 static 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
223 MACHINE_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,
231 MACHINE_END
232
