1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-mmp/brownstone.c
4 *
5 * Support for the Marvell Brownstone Development Platform.
6 *
7 * Copyright (C) 2009-2010 Marvell International Ltd.
8 */
9
10 #include <linux/init.h>
11 #include <linux/kernel.h>
12 #include <linux/platform_device.h>
13 #include <linux/io.h>
14 #include <linux/gpio-pxa.h>
15 #include <linux/gpio/machine.h>
16 #include <linux/regulator/machine.h>
17 #include <linux/regulator/max8649.h>
18 #include <linux/regulator/fixed.h>
19 #include <linux/mfd/max8925.h>
20
21 #include <asm/mach-types.h>
22 #include <asm/mach/arch.h>
23 #include "addr-map.h"
24 #include "mfp-mmp2.h"
25 #include "mmp2.h"
26 #include "irqs.h"
27
28 #include "common.h"
29
30 #define BROWNSTONE_NR_IRQS (MMP_NR_IRQS + 40)
31
32 #define GPIO_5V_ENABLE (89)
33
34 static unsigned long brownstone_pin_config[] __initdata = {
35 /* UART1 */
36 GPIO29_UART1_RXD,
37 GPIO30_UART1_TXD,
38
39 /* UART3 */
40 GPIO51_UART3_RXD,
41 GPIO52_UART3_TXD,
42
43 /* DFI */
44 GPIO168_DFI_D0,
45 GPIO167_DFI_D1,
46 GPIO166_DFI_D2,
47 GPIO165_DFI_D3,
48 GPIO107_DFI_D4,
49 GPIO106_DFI_D5,
50 GPIO105_DFI_D6,
51 GPIO104_DFI_D7,
52 GPIO111_DFI_D8,
53 GPIO164_DFI_D9,
54 GPIO163_DFI_D10,
55 GPIO162_DFI_D11,
56 GPIO161_DFI_D12,
57 GPIO110_DFI_D13,
58 GPIO109_DFI_D14,
59 GPIO108_DFI_D15,
60 GPIO143_ND_nCS0,
61 GPIO144_ND_nCS1,
62 GPIO147_ND_nWE,
63 GPIO148_ND_nRE,
64 GPIO150_ND_ALE,
65 GPIO149_ND_CLE,
66 GPIO112_ND_RDY0,
67 GPIO160_ND_RDY1,
68
69 /* PMIC */
70 PMIC_PMIC_INT | MFP_LPM_EDGE_FALL,
71
72 /* MMC0 */
73 GPIO131_MMC1_DAT3 | MFP_PULL_HIGH,
74 GPIO132_MMC1_DAT2 | MFP_PULL_HIGH,
75 GPIO133_MMC1_DAT1 | MFP_PULL_HIGH,
76 GPIO134_MMC1_DAT0 | MFP_PULL_HIGH,
77 GPIO136_MMC1_CMD | MFP_PULL_HIGH,
78 GPIO139_MMC1_CLK,
79 GPIO140_MMC1_CD | MFP_PULL_LOW,
80 GPIO141_MMC1_WP | MFP_PULL_LOW,
81
82 /* MMC1 */
83 GPIO37_MMC2_DAT3 | MFP_PULL_HIGH,
84 GPIO38_MMC2_DAT2 | MFP_PULL_HIGH,
85 GPIO39_MMC2_DAT1 | MFP_PULL_HIGH,
86 GPIO40_MMC2_DAT0 | MFP_PULL_HIGH,
87 GPIO41_MMC2_CMD | MFP_PULL_HIGH,
88 GPIO42_MMC2_CLK,
89
90 /* MMC2 */
91 GPIO165_MMC3_DAT7 | MFP_PULL_HIGH,
92 GPIO162_MMC3_DAT6 | MFP_PULL_HIGH,
93 GPIO166_MMC3_DAT5 | MFP_PULL_HIGH,
94 GPIO163_MMC3_DAT4 | MFP_PULL_HIGH,
95 GPIO167_MMC3_DAT3 | MFP_PULL_HIGH,
96 GPIO164_MMC3_DAT2 | MFP_PULL_HIGH,
97 GPIO168_MMC3_DAT1 | MFP_PULL_HIGH,
98 GPIO111_MMC3_DAT0 | MFP_PULL_HIGH,
99 GPIO112_MMC3_CMD | MFP_PULL_HIGH,
100 GPIO151_MMC3_CLK,
101
102 /* 5V regulator */
103 GPIO89_GPIO,
104 };
105
106 static struct pxa_gpio_platform_data mmp2_gpio_pdata = {
107 .irq_base = MMP_GPIO_TO_IRQ(0),
108 };
109
110 static struct regulator_consumer_supply max8649_supply[] = {
111 REGULATOR_SUPPLY("vcc_core", NULL),
112 };
113
114 static struct regulator_init_data max8649_init_data = {
115 .constraints = {
116 .name = "vcc_core range",
117 .min_uV = 1150000,
118 .max_uV = 1280000,
119 .always_on = 1,
120 .boot_on = 1,
121 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
122 },
123 .num_consumer_supplies = 1,
124 .consumer_supplies = &max8649_supply[0],
125 };
126
127 static struct max8649_platform_data brownstone_max8649_info = {
128 .mode = 2, /* VID1 = 1, VID0 = 0 */
129 .extclk = 0,
130 .ramp_timing = MAX8649_RAMP_32MV,
131 .regulator = &max8649_init_data,
132 };
133
134 static struct regulator_consumer_supply brownstone_v_5vp_supplies[] = {
135 REGULATOR_SUPPLY("v_5vp", NULL),
136 };
137
138 static struct regulator_init_data brownstone_v_5vp_data = {
139 .constraints = {
140 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
141 },
142 .num_consumer_supplies = ARRAY_SIZE(brownstone_v_5vp_supplies),
143 .consumer_supplies = brownstone_v_5vp_supplies,
144 };
145
146 static struct fixed_voltage_config brownstone_v_5vp = {
147 .supply_name = "v_5vp",
148 .microvolts = 5000000,
149 .enabled_at_boot = 1,
150 .init_data = &brownstone_v_5vp_data,
151 };
152
153 static struct platform_device brownstone_v_5vp_device = {
154 .name = "reg-fixed-voltage",
155 .id = 1,
156 .dev = {
157 .platform_data = &brownstone_v_5vp,
158 },
159 };
160
161 static struct gpiod_lookup_table brownstone_v_5vp_gpiod_table = {
162 .dev_id = "reg-fixed-voltage.1", /* .id set to 1 above */
163 .table = {
164 GPIO_LOOKUP("gpio-pxa", GPIO_5V_ENABLE,
165 NULL, GPIO_ACTIVE_HIGH),
166 { },
167 },
168 };
169
170 static struct max8925_platform_data brownstone_max8925_info = {
171 .irq_base = MMP_NR_IRQS,
172 };
173
174 static struct i2c_board_info brownstone_twsi1_info[] = {
175 [0] = {
176 .type = "max8649",
177 .addr = 0x60,
178 .platform_data = &brownstone_max8649_info,
179 },
180 [1] = {
181 .type = "max8925",
182 .addr = 0x3c,
183 .irq = IRQ_MMP2_PMIC,
184 .platform_data = &brownstone_max8925_info,
185 },
186 };
187
188 static struct sdhci_pxa_platdata mmp2_sdh_platdata_mmc0 = {
189 .clk_delay_cycles = 0x1f,
190 };
191
192 static struct sdhci_pxa_platdata mmp2_sdh_platdata_mmc2 = {
193 .clk_delay_cycles = 0x1f,
194 .flags = PXA_FLAG_CARD_PERMANENT
195 | PXA_FLAG_SD_8_BIT_CAPABLE_SLOT,
196 };
197
198 static struct sram_platdata mmp2_asram_platdata = {
199 .pool_name = "asram",
200 .granularity = SRAM_GRANULARITY,
201 };
202
203 static struct sram_platdata mmp2_isram_platdata = {
204 .pool_name = "isram",
205 .granularity = SRAM_GRANULARITY,
206 };
207
brownstone_init(void)208 static void __init brownstone_init(void)
209 {
210 mfp_config(ARRAY_AND_SIZE(brownstone_pin_config));
211
212 /* on-chip devices */
213 mmp2_add_uart(1);
214 mmp2_add_uart(3);
215 platform_device_add_data(&mmp2_device_gpio, &mmp2_gpio_pdata,
216 sizeof(struct pxa_gpio_platform_data));
217 platform_device_register(&mmp2_device_gpio);
218 mmp2_add_twsi(1, NULL, ARRAY_AND_SIZE(brownstone_twsi1_info));
219 mmp2_add_sdhost(0, &mmp2_sdh_platdata_mmc0); /* SD/MMC */
220 mmp2_add_sdhost(2, &mmp2_sdh_platdata_mmc2); /* eMMC */
221 mmp2_add_asram(&mmp2_asram_platdata);
222 mmp2_add_isram(&mmp2_isram_platdata);
223
224 /* enable 5v regulator */
225 gpiod_add_lookup_table(&brownstone_v_5vp_gpiod_table);
226 platform_device_register(&brownstone_v_5vp_device);
227 }
228
229 MACHINE_START(BROWNSTONE, "Brownstone Development Platform")
230 /* Maintainer: Haojian Zhuang <haojian.zhuang@marvell.com> */
231 .map_io = mmp_map_io,
232 .nr_irqs = BROWNSTONE_NR_IRQS,
233 .init_irq = mmp2_init_irq,
234 .init_time = mmp2_timer_init,
235 .init_machine = brownstone_init,
236 .restart = mmp_restart,
237 MACHINE_END
238