target/linux/ar71xx/files/arch/mips/ar71xx/dev-ar9xxx-wmac.c

   1 /*
   2  *  Atheros AR9XXX SoCs built-in WMAC device support
   3  *
   4  *  Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
   5  *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
   6  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
   7  *
   8  *  Parts of this file are based on Atheros 2.6.15/2.6.31 BSP
   9  *
  10  *  This program is free software; you can redistribute it and/or modify it
  11  *  under the terms of the GNU General Public License version 2 as published
  12  *  by the Free Software Foundation.
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/delay.h>
  18 #include <linux/etherdevice.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/ath9k_platform.h>
  21
  22 #include <asm/mach-ar71xx/ar71xx.h>
  23
  24 #include "dev-ar9xxx-wmac.h"
  25
  26 static struct ath9k_platform_data ar9xxx_wmac_data = {
  27         .led_pin = -1,
  28 };
  29 static char ar9xxx_wmac_mac[6];
  30
  31 static struct resource ar9xxx_wmac_resources[] = {
  32         {
  33                 /* .start and .end fields are filled dynamically */
  34                 .flags  = IORESOURCE_MEM,
  35         }, {
  36                 .start  = AR71XX_CPU_IRQ_IP2,
  37                 .end    = AR71XX_CPU_IRQ_IP2,
  38                 .flags  = IORESOURCE_IRQ,
  39         },
  40 };
  41
  42 static struct platform_device ar9xxx_wmac_device = {
  43         .name           = "ath9k",
  44         .id             = -1,
  45         .resource       = ar9xxx_wmac_resources,
  46         .num_resources  = ARRAY_SIZE(ar9xxx_wmac_resources),
  47         .dev = {
  48                 .platform_data = &ar9xxx_wmac_data,
  49         },
  50 };
  51
  52 static void ar913x_wmac_init(void)
  53 {
  54         ar71xx_device_stop(RESET_MODULE_AMBA2WMAC);
  55         mdelay(10);
  56
  57         ar71xx_device_start(RESET_MODULE_AMBA2WMAC);
  58         mdelay(10);
  59
  60         ar9xxx_wmac_resources[0].start = AR91XX_WMAC_BASE;
  61         ar9xxx_wmac_resources[0].end = AR91XX_WMAC_BASE + AR91XX_WMAC_SIZE - 1;
  62 }
  63
  64 static void ar934x_wmac_init(void)
  65 {
  66         ar9xxx_wmac_device.name = "ar934x_wmac";
  67         ar9xxx_wmac_resources[0].start = AR934X_WMAC_BASE;
  68         ar9xxx_wmac_resources[0].end = AR934X_WMAC_BASE + AR934X_WMAC_SIZE - 1;
  69 }
  70
  71 void __init ar9xxx_add_device_wmac(u8 *cal_data, u8 *mac_addr)
  72 {
  73         switch (ar71xx_soc) {
  74         case AR71XX_SOC_AR9130:
  75         case AR71XX_SOC_AR9132:
  76                 ar913x_wmac_init();
  77                 break;
  78
  79         case AR71XX_SOC_AR9341:
  80         case AR71XX_SOC_AR9342:
  81         case AR71XX_SOC_AR9344:
  82                 ar934x_wmac_init();
  83                 break;
  84
  85         default:
  86                 BUG();
  87         }
  88
  89         if (cal_data)
  90                 memcpy(ar9xxx_wmac_data.eeprom_data, cal_data,
  91                        sizeof(ar9xxx_wmac_data.eeprom_data));
  92
  93         if (mac_addr) {
  94                 memcpy(ar9xxx_wmac_mac, mac_addr, sizeof(ar9xxx_wmac_mac));
  95                 ar9xxx_wmac_data.macaddr = ar9xxx_wmac_mac;
  96         }
  97
  98         platform_device_register(&ar9xxx_wmac_device);
  99 }