arch/arm/mach-ux500/board-mop500.c

   1 /*
   2  * Copyright (C) 2008-2009 ST-Ericsson
   3  *
   4  * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2, as
   8  * published by the Free Software Foundation.
   9  *
  10  */
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/interrupt.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/io.h>
  16 #include <linux/i2c.h>
  17 #include <linux/gpio.h>
  18 #include <linux/amba/bus.h>
  19 #include <linux/amba/pl022.h>
  20 #include <linux/spi/spi.h>
  21 #include <linux/mfd/ab8500.h>
  22 #include <linux/mfd/tc3589x.h>
  23
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26
  27 #include <plat/pincfg.h>
  28 #include <plat/i2c.h>
  29
  30 #include <mach/hardware.h>
  31 #include <mach/setup.h>
  32 #include <mach/devices.h>
  33 #include <mach/irqs.h>
  34
  35 #include "devices-db8500.h"
  36 #include "pins-db8500.h"
  37 #include "board-mop500.h"
  38
  39 static pin_cfg_t mop500_pins[] = {
  40         /* SSP0 */
  41         GPIO143_SSP0_CLK,
  42         GPIO144_SSP0_FRM,
  43         GPIO145_SSP0_RXD,
  44         GPIO146_SSP0_TXD,
  45
  46         /* I2C */
  47         GPIO147_I2C0_SCL,
  48         GPIO148_I2C0_SDA,
  49         GPIO16_I2C1_SCL,
  50         GPIO17_I2C1_SDA,
  51         GPIO10_I2C2_SDA,
  52         GPIO11_I2C2_SCL,
  53         GPIO229_I2C3_SDA,
  54         GPIO230_I2C3_SCL,
  55
  56         /* SKE keypad */
  57         GPIO153_KP_I7,
  58         GPIO154_KP_I6,
  59         GPIO155_KP_I5,
  60         GPIO156_KP_I4,
  61         GPIO157_KP_O7,
  62         GPIO158_KP_O6,
  63         GPIO159_KP_O5,
  64         GPIO160_KP_O4,
  65         GPIO161_KP_I3,
  66         GPIO162_KP_I2,
  67         GPIO163_KP_I1,
  68         GPIO164_KP_I0,
  69         GPIO165_KP_O3,
  70         GPIO166_KP_O2,
  71         GPIO167_KP_O1,
  72         GPIO168_KP_O0,
  73
  74         /* GPIO_EXP_INT */
  75         GPIO217_GPIO,
  76
  77         /* STMPE1601 IRQ */
  78         GPIO218_GPIO    | PIN_INPUT_PULLUP,
  79 };
  80
  81 static struct ab8500_platform_data ab8500_platdata = {
  82         .irq_base       = MOP500_AB8500_IRQ_BASE,
  83 };
  84
  85 static struct resource ab8500_resources[] = {
  86         [0] = {
  87                 .start  = IRQ_DB8500_AB8500,
  88                 .end    = IRQ_DB8500_AB8500,
  89                 .flags  = IORESOURCE_IRQ
  90         }
  91 };
  92
  93 struct platform_device ab8500_device = {
  94         .name = "ab8500-i2c",
  95         .id = 0,
  96         .dev = {
  97                 .platform_data = &ab8500_platdata,
  98         },
  99         .num_resources = 1,
 100         .resource = ab8500_resources,
 101 };
 102
 103 static struct pl022_ssp_controller ssp0_platform_data = {
 104         .bus_id = 0,
 105         /* pl022 not yet supports dma */
 106         .enable_dma = 0,
 107         /* on this platform, gpio 31,142,144,214 &
 108          * 224 are connected as chip selects
 109          */
 110         .num_chipselect = 5,
 111 };
 112
 113 /*
 114  * TC35892
 115  */
 116
 117 static void mop500_tc35892_init(struct tc3589x *tc3589x, unsigned int base)
 118 {
 119         mop500_sdi_tc35892_init();
 120 }
 121
 122 static struct tc3589x_gpio_platform_data mop500_tc35892_gpio_data = {
 123         .gpio_base      = MOP500_EGPIO(0),
 124         .setup          = mop500_tc35892_init,
 125 };
 126
 127 static struct tc3589x_platform_data mop500_tc35892_data = {
 128         .block          = TC3589x_BLOCK_GPIO,
 129         .gpio           = &mop500_tc35892_gpio_data,
 130         .irq_base       = MOP500_EGPIO_IRQ_BASE,
 131 };
 132
 133 static struct i2c_board_info mop500_i2c0_devices[] = {
 134         {
 135                 I2C_BOARD_INFO("tc3589x", 0x42),
 136                 .irq            = NOMADIK_GPIO_TO_IRQ(217),
 137                 .platform_data  = &mop500_tc35892_data,
 138         },
 139 };
 140
 141 #define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
 142 static struct nmk_i2c_controller u8500_i2c##id##_data = { \
 143         /*                              \
 144          * slave data setup time, which is      \
 145          * 250 ns,100ns,10ns which is 14,6,2    \
 146          * respectively for a 48 Mhz    \
 147          * i2c clock                    \
 148          */                             \
 149         .slsu           = _slsu,        \
 150         /* Tx FIFO threshold */         \
 151         .tft            = _tft,         \
 152         /* Rx FIFO threshold */         \
 153         .rft            = _rft,         \
 154         /* std. mode operation */       \
 155         .clk_freq       = clk,          \
 156         .sm             = _sm,          \
 157 }
 158
 159 /*
 160  * The board uses 4 i2c controllers, initialize all of
 161  * them with slave data setup time of 250 ns,
 162  * Tx & Rx FIFO threshold values as 1 and standard
 163  * mode of operation
 164  */
 165 U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 166 U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 167 U8500_I2C_CONTROLLER(2, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 168 U8500_I2C_CONTROLLER(3, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 169
 170 static void __init mop500_i2c_init(void)
 171 {
 172         db8500_add_i2c0(&u8500_i2c0_data);
 173         db8500_add_i2c1(&u8500_i2c1_data);
 174         db8500_add_i2c2(&u8500_i2c2_data);
 175         db8500_add_i2c3(&u8500_i2c3_data);
 176 }
 177
 178 /* add any platform devices here - TODO */
 179 static struct platform_device *platform_devs[] __initdata = {
 180 };
 181
 182 static void __init mop500_spi_init(void)
 183 {
 184         db8500_add_ssp0(&ssp0_platform_data);
 185 }
 186
 187 static void __init mop500_uart_init(void)
 188 {
 189         db8500_add_uart0();
 190         db8500_add_uart1();
 191         db8500_add_uart2();
 192 }
 193
 194 static void __init u8500_init_machine(void)
 195 {
 196         u8500_init_devices();
 197
 198         nmk_config_pins(mop500_pins, ARRAY_SIZE(mop500_pins));
 199
 200         platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
 201
 202         mop500_i2c_init();
 203         mop500_sdi_init();
 204         mop500_spi_init();
 205         mop500_uart_init();
 206
 207         mop500_keypad_init();
 208
 209         platform_device_register(&ab8500_device);
 210
 211         i2c_register_board_info(0, mop500_i2c0_devices,
 212                                 ARRAY_SIZE(mop500_i2c0_devices));
 213 }
 214
 215 MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
 216         /* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
 217         .boot_params    = 0x100,
 218         .map_io         = u8500_map_io,
 219         .init_irq       = ux500_init_irq,
 220         /* we re-use nomadik timer here */
 221         .timer          = &ux500_timer,
 222         .init_machine   = u8500_init_machine,
 223 MACHINE_END