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   1 /*
   2  * linux/arch/arm/mach-pxa/cm-x255.c
   3  *
   4  * Copyright (C) 2007, 2008 CompuLab, Ltd.
   5  * Mike Rapoport <mike@compulab.co.il>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #include <linux/platform_device.h>
  13 #include <linux/irq.h>
  14 #include <linux/gpio.h>
  15
  16 #include <linux/spi/spi.h>
  17
  18 #include <asm/mach/arch.h>
  19 #include <asm/mach-types.h>
  20 #include <asm/mach/map.h>
  21
  22 #include <mach/pxa2xx-regs.h>
  23 #include <mach/mfp-pxa25x.h>
  24 #include <mach/pxa2xx_spi.h>
  25 #include <mach/bitfield.h>
  26
  27 #include "generic.h"
  28
  29 static unsigned long cmx255_pin_config[] = {
  30         /* AC'97 */
  31         GPIO28_AC97_BITCLK,
  32         GPIO29_AC97_SDATA_IN_0,
  33         GPIO30_AC97_SDATA_OUT,
  34         GPIO31_AC97_SYNC,
  35
  36         /* BTUART */
  37         GPIO42_BTUART_RXD,
  38         GPIO43_BTUART_TXD,
  39         GPIO44_BTUART_CTS,
  40         GPIO45_BTUART_RTS,
  41
  42         /* STUART */
  43         GPIO46_STUART_RXD,
  44         GPIO47_STUART_TXD,
  45
  46         /* LCD */
  47         GPIO58_LCD_LDD_0,
  48         GPIO59_LCD_LDD_1,
  49         GPIO60_LCD_LDD_2,
  50         GPIO61_LCD_LDD_3,
  51         GPIO62_LCD_LDD_4,
  52         GPIO63_LCD_LDD_5,
  53         GPIO64_LCD_LDD_6,
  54         GPIO65_LCD_LDD_7,
  55         GPIO66_LCD_LDD_8,
  56         GPIO67_LCD_LDD_9,
  57         GPIO68_LCD_LDD_10,
  58         GPIO69_LCD_LDD_11,
  59         GPIO70_LCD_LDD_12,
  60         GPIO71_LCD_LDD_13,
  61         GPIO72_LCD_LDD_14,
  62         GPIO73_LCD_LDD_15,
  63         GPIO74_LCD_FCLK,
  64         GPIO75_LCD_LCLK,
  65         GPIO76_LCD_PCLK,
  66         GPIO77_LCD_BIAS,
  67
  68         /* SSP1 */
  69         GPIO23_SSP1_SCLK,
  70         GPIO24_SSP1_SFRM,
  71         GPIO25_SSP1_TXD,
  72         GPIO26_SSP1_RXD,
  73
  74         /* SSP2 */
  75         GPIO81_SSP2_CLK_OUT,
  76         GPIO82_SSP2_FRM_OUT,
  77         GPIO83_SSP2_TXD,
  78         GPIO84_SSP2_RXD,
  79
  80         /* PC Card */
  81         GPIO48_nPOE,
  82         GPIO49_nPWE,
  83         GPIO50_nPIOR,
  84         GPIO51_nPIOW,
  85         GPIO52_nPCE_1,
  86         GPIO53_nPCE_2,
  87         GPIO54_nPSKTSEL,
  88         GPIO55_nPREG,
  89         GPIO56_nPWAIT,
  90         GPIO57_nIOIS16,
  91
  92         /* SDRAM and local bus */
  93         GPIO15_nCS_1,
  94         GPIO78_nCS_2,
  95         GPIO79_nCS_3,
  96         GPIO80_nCS_4,
  97         GPIO33_nCS_5,
  98         GPIO18_RDY,
  99
 100         /* GPIO */
 101         GPIO0_GPIO      | WAKEUP_ON_EDGE_BOTH,
 102         GPIO9_GPIO,                             /* PC card reset */
 103
 104         /* NAND controls */
 105         GPIO5_GPIO      | MFP_LPM_DRIVE_HIGH,   /* NAND CE# */
 106         GPIO4_GPIO      | MFP_LPM_DRIVE_LOW,    /* NAND ALE */
 107         GPIO3_GPIO      | MFP_LPM_DRIVE_LOW,    /* NAND CLE */
 108         GPIO10_GPIO,                            /* NAND Ready/Busy */
 109
 110         /* interrupts */
 111         GPIO22_GPIO,    /* DM9000 interrupt */
 112 };
 113
 114 #if defined(CONFIG_SPI_PXA2XX)
 115 static struct pxa2xx_spi_master pxa_ssp_master_info = {
 116         .num_chipselect = 1,
 117 };
 118
 119 static struct spi_board_info spi_board_info[] __initdata = {
 120         [0] = {
 121                 .modalias       = "rtc-max6902",
 122                 .max_speed_hz   = 1000000,
 123                 .bus_num        = 1,
 124                 .chip_select    = 0,
 125         },
 126 };
 127
 128 static void __init cmx255_init_rtc(void)
 129 {
 130         pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
 131         spi_register_board_info(ARRAY_AND_SIZE(spi_board_info));
 132 }
 133 #else
 134 static inline void cmx255_init_rtc(void) {}
 135 #endif
 136
 137 void __init cmx255_init(void)
 138 {
 139         pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx255_pin_config));
 140
 141         cmx255_init_rtc();
 142 }