modem_boot/req_clk_gpio.c

   1 /******************************************************************************
   2  ** File Name:      spi_phy_v0.c                                                 *
   3  ** Author:         liuhao                                                   *
   4  ** DATE:           06/28/2010                                                *
   5  ** Copyright:      2010 Spreatrum, Incoporated. All Rights Reserved.         *
   6  ** Description:    This file define the physical layer of SPI device.      *
   7  ******************************************************************************
   8
   9  ******************************************************************************
  10  **                        Edit History                                       *
  11  ** ------------------------------------------------------------------------- *
  12  ** DATE           NAME             DESCRIPTION                               *
  13  ** 06/28/2010     liuhao     Create.
  14  ******************************************************************************/
  15
  16 /**---------------------------------------------------------------------------*
  17  **                         Dependencies                                      *
  18  **---------------------------------------------------------------------------*/
  19 #include <config.h>
  20 #include <common.h>
  21 #include <linux/types.h>
  22 #include <asm/arch/bits.h>
  23 //#define __DEBUG__
  24 //#define __SPI_MODE__
  25 #define mdelay(n)       udelay((n) * 1000)
  26
  27 extern int modem_status(void);
  28
  29 int     req_clk_status(void)
  30 {
  31         if(modem_status() == 2)  {
  32                 mdelay(10);
  33                 return 0;
  34         } else {
  35                 return gpio_get_value(CP_AP_LIV);
  36         }
  37 }
  38 /*********************************************************************************************************
  39 ** Function name: req_clk_init
  40 ** Descriptions:
  41 ** input parameters:
  42 **
  43 **
  44 **
  45 ** output parameters:
  46 ** Returned value:
  47 *********************************************************************************************************/
  48 void req_clk_init(void)
  49 {
  50         //gpio_direction_output(CP_AP_LIV, 0);
  51 }
  52
  53 void dump_gpio_register(void)
  54 {
  55 //      GPIO_PRINT(("GPIO(0x%x --0x%x)      = 0x%8x\n",gpio_base_for_cs+0x4,gpio_base_for_cs,REG32(gpio_base_for_cs+0x4)));
  56 //      GPIO_PRINT(("GPIO(0x%x -- %d)      = 0x%8x\n",gpio_base_for_cs+0x8,gpio_bit_num_for_cs,REG32(gpio_base_for_cs+0x8)));
  57 }
  58