arch/arm/mach-pxa/pxa2xx.c

   1 /*
   2  * linux/arch/arm/mach-pxa/pxa2xx.c
   3  *
   4  * code specific to pxa2xx
   5  *
   6  * Copyright (C) 2008 Dmitry Baryshkov
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/module.h>
  14 #include <linux/kernel.h>
  15 #include <linux/device.h>
  16
  17 #include <asm/arch/mfp-pxa2xx.h>
  18 #include <asm/arch/mfp-pxa25x.h>
  19 #include <asm/arch/irda.h>
  20
  21 static unsigned long pxa2xx_mfp_fir[] = {
  22         GPIO46_FICP_RXD,
  23         GPIO47_FICP_TXD,
  24 };
  25
  26 static unsigned long pxa2xx_mfp_sir[] = {
  27         GPIO46_STUART_RXD,
  28         GPIO47_STUART_TXD,
  29 };
  30
  31 static unsigned long pxa2xx_mfp_off[] = {
  32         GPIO46_GPIO | MFP_LPM_DRIVE_LOW,
  33         GPIO47_GPIO | MFP_LPM_DRIVE_LOW,
  34 };
  35
  36 void pxa2xx_transceiver_mode(struct device *dev, int mode)
  37 {
  38         if (mode & IR_OFF) {
  39                 pxa2xx_mfp_config(pxa2xx_mfp_off, ARRAY_SIZE(pxa2xx_mfp_off));
  40         } else if (mode & IR_SIRMODE) {
  41                 pxa2xx_mfp_config(pxa2xx_mfp_sir, ARRAY_SIZE(pxa2xx_mfp_sir));
  42         } else if (mode & IR_FIRMODE) {
  43                 pxa2xx_mfp_config(pxa2xx_mfp_fir, ARRAY_SIZE(pxa2xx_mfp_fir));
  44         } else
  45                 BUG();
  46 }