arch/arm/mach-mmp/brownstone.c

   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
 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