arch/arm/mach-pxa/rover/roverp1.c

   1 /*
   2  * Machine initialization for Rover P1
   3  *
   4  * Authors: Konstantine A. Beklemishev konstantine@r66.ru
   5  * LCD initialization based on h1900.c code and adapted for Rover P1 platform
   6  */
   7
   8 #include <linux/init.h>
   9 #include <linux/interrupt.h>
  10 #include <linux/kernel.h>
  11 #include <linux/fs.h>
  12 #include <linux/major.h>
  13 #include <linux/ioport.h>
  14 #include <linux/device.h>
  15 #include <linux/input.h>
  16 #include <linux/delay.h>
  17 /* #include <linux/fb.h> */
  18
  19 #include <asm/mach/arch.h>
  20 #include <asm/mach/map.h>
  21
  22 #include <asm/mach-types.h>
  23 #include <asm/io.h>
  24 #include <asm/memory.h>
  25 #include <asm/hardware.h>
  26
  27 #include <asm/arch/roverp1-init.h>
  28 #include <asm/arch/roverp1-gpio.h>
  29
  30 #include <asm/arch/pxa-dmabounce.h>
  31 /* #include <asm/arch/pxafb.h> */
  32 #include <asm/arch/udc.h>
  33 #include <asm/arch/pxa-regs.h>
  34
  35
  36 #include "../generic.h"
  37
  38 #define DEBUG 1
  39
  40 #if DEBUG
  41 #  define DPRINTK(fmt, args...) printk("%s: " fmt, __FUNCTION__ , ## args)
  42 #else
  43 #  define DPRINTK(fmt, args...)
  44 #endif
  45
  46 /* static void roverp1_backlight_power(int on)
  47  * {
  48  *         |+ TODO +|
  49  * }
  50
  51  * static struct pxafb_mach_info roverp1lcd __initdata = {
  52  *         .pixclock   =        156551,   // --
  53  *         .bpp     =   16,  // ??
  54  *         .xres            =   240, // PPL + 1
  55  *         .yres            =   320, // LPP + 1
  56  *         .hsync_len  =        24,  // HSW + 1
  57  *         .vsync_len  =        2,   // VSW + 1
  58  *         .left_margin=        20,  // BLW + 1
  59  *         .upper_margin = 5,   // BFW
  60  *         .right_margin = 12,  // ELW + 1
  61  *         .lower_margin = 5,   // EFW
  62  *         .sync            =   FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
  63  *         .lccr0 = 0x003008f0,
  64  *         .lccr3 = 0x04400008,
  65  *         .pxafb_backlight_power       = roverp1_backlight_power
  66  * };                                                                       */
  67
  68
  69 static int roverp1_udc_is_connected(void) {
  70         DPRINTK("roverp1_udc_is_connected\n");
  71         return GET_ROVERP1_GPIO(USB_DETECT);
  72 }
  73
  74 /* TODO unified eGPIO write/get function. static var */
  75
  76 static void roverp1_udc_command(int cmd) {
  77
  78         DPRINTK("roverp1_udc_command: %d\n", cmd);
  79
  80         switch(cmd){
  81             case PXA2XX_UDC_CMD_DISCONNECT:
  82 /*                 SET_ROVERP1_eGPIO(eGPIO_NR_ROVERP1_USB_EN, 0) */
  83 /*                 writel(0x8021,ROVERP1_eGPIO_VIRT); */
  84 /*                 printk("usb disconnected\n"); */
  85                 break;
  86             case PXA2XX_UDC_CMD_CONNECT:
  87 /*                 SET_ROVERP1_eGPIO(eGPIO_NR_ROVERP1_USB_EN, 1) */
  88 /*                 writel(0x8220,ROVERP1_eGPIO_VIRT); */
  89 /*                 printk("usb connected\n"); */
  90                 break;
  91             default:
  92                 DPRINTK("roverp1_udc_control: unknown command!\n");
  93                 break;
  94         }
  95 }
  96
  97 static struct pxa2xx_udc_mach_info roverp1_udc_mach_info = {
  98         .udc_is_connected = roverp1_udc_is_connected,
  99         .udc_command      = roverp1_udc_command,
 100 };
 101
 102 static void __init roverp1_init_irq (void)
 103 {
 104         /* Initialize standard IRQs */
 105         pxa_init_irq();
 106
 107 }
 108
 109 static struct map_desc roverp1_io_desc[] __initdata = {
 110         /* virtual            physical           length      domain     r  w  c  b */
 111         { ROVERP1_eGPIO_VIRT, ROVERP1_eGPIO_PHYS, 0x00001000, MT_DEVICE}, /* CS#2 eGPIO*/
 112 };
 113
 114 static void __init roverp1_map_io(void)
 115 {
 116         /* Initialize standard IO maps */
 117         pxa_map_io();
 118         iotable_init(roverp1_io_desc, ARRAY_SIZE(roverp1_io_desc));
 119 /*         writel(0x8228,ROVERP1_eGPIO_VIRT); */
 120         PWER = PWER_GPIO0 | PWER_RTC;
 121         PFER = PWER_GPIO0 | PWER_RTC;
 122         PRER = 0;
 123         PCFR = PCFR_OPDE;
 124 /*         CKEN = CKEN0_PWM0    | CKEN1_PWM1     | CKEN2_AC97    | CKEN3_SSP  |
 125  *                CKEN4_SSP3    | CKEN5_STUART   | CKEN6_FFUART  | CKEN8_I2S  |
 126  *                CKEN9_OSTIMER | CKEN10_USBHOST | CKEN11_USB    | CKEN12_MMC |
 127  *                CKEN13_FICP   | CKEN14_I2C     | CKEN15_PWRI2C | CKEN16_LCD |
 128  *                CKEN20_IM     | CKEN22_MEMC;                                   */
 129
 130         PGSR0 = GPSRx_SleepValue;
 131         PGSR1 = GPSRy_SleepValue;
 132         PGSR2 = GPSRz_SleepValue;
 133
 134 /*         Set up GPIO direction and alternate function registers */
 135         GAFR0_L = GAFR0x_InitValue;
 136         GAFR0_U = GAFR1x_InitValue;
 137         GAFR1_L = GAFR0y_InitValue;
 138         GAFR1_U = GAFR1y_InitValue;
 139         GAFR2_L = GAFR0z_InitValue;
 140         GAFR2_U = GAFR1z_InitValue;
 141
 142         GPDR0 = GPDRx_InitValue;
 143         GPDR1 = GPDRy_InitValue;
 144         GPDR2 = GPDRz_InitValue;
 145
 146         GPSR0 = GPSRx_InitValue;
 147         GPSR1 = GPSRy_InitValue;
 148         GPSR2 = GPSRz_InitValue;
 149
 150         GPCR0 = ~GPSRx_InitValue;
 151         GPCR1 = ~GPSRy_InitValue;
 152         GPCR2 = ~GPSRz_InitValue;
 153
 154         REINIT_ROVERP1_eGPIO;
 155
 156 /*         if GET_ROVERP1_GPIO(USB_DETECT)
 157  *              printk("\n\nusb connected\n\n");
 158  *         else
 159  *              printk("\n\nusb disconnected\n\n");
 160  *         printk("eGPIO reinited\n");              */
 161
 162 }
 163
 164 /* static struct platform_device *devices[] __initdata = {
 165  *         &pxafb_device,
 166  * };                                                      */
 167
 168 static void __init roverp1_init (void)
 169 {
 170         pxa_set_udc_info (&roverp1_udc_mach_info);
 171 /*         set_pxa_fb_info(&roverp1lcd); */
 172 }
 173
 174 MACHINE_START(ROVERP1, "Rover Rover P1")
 175         /* Maintainer Konstantine A. Beklemishev */
 176         .phys_ram       = 0xa0000000,
 177         .phys_io        = 0x40000000,
 178         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 179         .boot_params    = 0xa0000100,
 180         .map_io         = roverp1_map_io,
 181         .init_irq       = roverp1_init_irq,
 182         .timer = &pxa_timer,
 183         .init_machine = roverp1_init,
 184 MACHINE_END