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 #include "board-mop500-regulators.h"
  39
  40 static pin_cfg_t mop500_pins[] = {
  41         /* SSP0 */
  42         GPIO143_SSP0_CLK,
  43         GPIO144_SSP0_FRM,
  44         GPIO145_SSP0_RXD,
  45         GPIO146_SSP0_TXD,
  46
  47         /* I2C */
  48         GPIO147_I2C0_SCL,
  49         GPIO148_I2C0_SDA,
  50         GPIO16_I2C1_SCL,
  51         GPIO17_I2C1_SDA,
  52         GPIO10_I2C2_SDA,
  53         GPIO11_I2C2_SCL,
  54         GPIO229_I2C3_SDA,
  55         GPIO230_I2C3_SCL,
  56
  57         /* SKE keypad */
  58         GPIO153_KP_I7,
  59         GPIO154_KP_I6,
  60         GPIO155_KP_I5,
  61         GPIO156_KP_I4,
  62         GPIO157_KP_O7,
  63         GPIO158_KP_O6,
  64         GPIO159_KP_O5,
  65         GPIO160_KP_O4,
  66         GPIO161_KP_I3,
  67         GPIO162_KP_I2,
  68         GPIO163_KP_I1,
  69         GPIO164_KP_I0,
  70         GPIO165_KP_O3,
  71         GPIO166_KP_O2,
  72         GPIO167_KP_O1,
  73         GPIO168_KP_O0,
  74
  75         /* GPIO_EXP_INT */
  76         GPIO217_GPIO,
  77
  78         /* STMPE1601 IRQ */
  79         GPIO218_GPIO    | PIN_INPUT_PULLUP,
  80 };
  81
  82 static struct ab8500_platform_data ab8500_platdata = {
  83         .irq_base       = MOP500_AB8500_IRQ_BASE,
  84         .regulator      = ab8500_regulators,
  85         .num_regulator  = ARRAY_SIZE(ab8500_regulators),
  86 };
  87
  88 static struct resource ab8500_resources[] = {
  89         [0] = {
  90                 .start  = IRQ_DB8500_AB8500,
  91                 .end    = IRQ_DB8500_AB8500,
  92                 .flags  = IORESOURCE_IRQ
  93         }
  94 };
  95
  96 struct platform_device ab8500_device = {
  97         .name = "ab8500-i2c",
  98         .id = 0,
  99         .dev = {
 100                 .platform_data = &ab8500_platdata,
 101         },
 102         .num_resources = 1,
 103         .resource = ab8500_resources,
 104 };
 105
 106 static struct pl022_ssp_controller ssp0_platform_data = {
 107         .bus_id = 0,
 108         /* pl022 not yet supports dma */
 109         .enable_dma = 0,
 110         /* on this platform, gpio 31,142,144,214 &
 111          * 224 are connected as chip selects
 112          */
 113         .num_chipselect = 5,
 114 };
 115
 116 /*
 117  * TC35892
 118  */
 119
 120 static void mop500_tc35892_init(struct tc3589x *tc3589x, unsigned int base)
 121 {
 122         mop500_sdi_tc35892_init();
 123 }
 124
 125 static struct tc3589x_gpio_platform_data mop500_tc35892_gpio_data = {
 126         .gpio_base      = MOP500_EGPIO(0),
 127         .setup          = mop500_tc35892_init,
 128 };
 129
 130 static struct tc3589x_platform_data mop500_tc35892_data = {
 131         .block          = TC3589x_BLOCK_GPIO,
 132         .gpio           = &mop500_tc35892_gpio_data,
 133         .irq_base       = MOP500_EGPIO_IRQ_BASE,
 134 };
 135
 136 static struct i2c_board_info mop500_i2c0_devices[] = {
 137         {
 138                 I2C_BOARD_INFO("tc3589x", 0x42),
 139                 .irq            = NOMADIK_GPIO_TO_IRQ(217),
 140                 .platform_data  = &mop500_tc35892_data,
 141         },
 142 };
 143
 144 #define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
 145 static struct nmk_i2c_controller u8500_i2c##id##_data = { \
 146         /*                              \
 147          * slave data setup time, which is      \
 148          * 250 ns,100ns,10ns which is 14,6,2    \
 149          * respectively for a 48 Mhz    \
 150          * i2c clock                    \
 151          */                             \
 152         .slsu           = _slsu,        \
 153         /* Tx FIFO threshold */         \
 154         .tft            = _tft,         \
 155         /* Rx FIFO threshold */         \
 156         .rft            = _rft,         \
 157         /* std. mode operation */       \
 158         .clk_freq       = clk,          \
 159         .sm             = _sm,          \
 160 }
 161
 162 /*
 163  * The board uses 4 i2c controllers, initialize all of
 164  * them with slave data setup time of 250 ns,
 165  * Tx & Rx FIFO threshold values as 1 and standard
 166  * mode of operation
 167  */
 168 U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 169 U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 170 U8500_I2C_CONTROLLER(2, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 171 U8500_I2C_CONTROLLER(3, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
 172
 173 static void __init mop500_i2c_init(void)
 174 {
 175         db8500_add_i2c0(&u8500_i2c0_data);
 176         db8500_add_i2c1(&u8500_i2c1_data);
 177         db8500_add_i2c2(&u8500_i2c2_data);
 178         db8500_add_i2c3(&u8500_i2c3_data);
 179 }
 180
 181 /* add any platform devices here - TODO */
 182 static struct platform_device *platform_devs[] __initdata = {
 183 };
 184
 185 static void __init mop500_spi_init(void)
 186 {
 187         db8500_add_ssp0(&ssp0_platform_data);
 188 }
 189
 190 static void __init mop500_uart_init(void)
 191 {
 192         db8500_add_uart0();
 193         db8500_add_uart1();
 194         db8500_add_uart2();
 195 }
 196
 197 static void __init u8500_init_machine(void)
 198 {
 199         u8500_init_devices();
 200
 201         nmk_config_pins(mop500_pins, ARRAY_SIZE(mop500_pins));
 202
 203         platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
 204
 205         mop500_i2c_init();
 206         mop500_sdi_init();
 207         mop500_spi_init();
 208         mop500_uart_init();
 209
 210         platform_device_register(&ab8500_device);
 211
 212         i2c_register_board_info(0, mop500_i2c0_devices,
 213                                 ARRAY_SIZE(mop500_i2c0_devices));
 214 }
 215
 216 MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
 217         /* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
 218         .boot_params    = 0x100,
 219         .map_io         = u8500_map_io,
 220         .init_irq       = ux500_init_irq,
 221         /* we re-use nomadik timer here */
 222         .timer          = &ux500_timer,
 223         .init_machine   = u8500_init_machine,
 224 MACHINE_END