source: trunk/target/linux/ar71xx/files/arch/mips/ar71xx/dev-ar9xxx-wmac.c @ 27064

Last change on this file since 27064 was 27064, checked in by juhosg, 5 years ago

ar71xx: add WMAC initialization code for the AR933X SoCs

  • Property svn:eol-style set to native
File size: 2.8 KB
Line 
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#define MHZ_25  (25 * 1000 * 1000)
27
28static struct ath9k_platform_data ar9xxx_wmac_data = {
29        .led_pin = -1,
30};
31static char ar9xxx_wmac_mac[6];
32
33static struct resource ar9xxx_wmac_resources[] = {
34        {
35                /* .start and .end fields are filled dynamically */
36                .flags  = IORESOURCE_MEM,
37        }, {
38                .start  = AR71XX_CPU_IRQ_IP2,
39                .end    = AR71XX_CPU_IRQ_IP2,
40                .flags  = IORESOURCE_IRQ,
41        },
42};
43
44static struct platform_device ar9xxx_wmac_device = {
45        .name           = "ath9k",
46        .id             = -1,
47        .resource       = ar9xxx_wmac_resources,
48        .num_resources  = ARRAY_SIZE(ar9xxx_wmac_resources),
49        .dev = {
50                .platform_data = &ar9xxx_wmac_data,
51        },
52};
53
54static void ar913x_wmac_init(void)
55{
56        ar71xx_device_stop(RESET_MODULE_AMBA2WMAC);
57        mdelay(10);
58
59        ar71xx_device_start(RESET_MODULE_AMBA2WMAC);
60        mdelay(10);
61
62        ar9xxx_wmac_resources[0].start = AR91XX_WMAC_BASE;
63        ar9xxx_wmac_resources[0].end = AR91XX_WMAC_BASE + AR91XX_WMAC_SIZE - 1;
64}
65
66static void ar933x_wmac_init(void)
67{
68        ar9xxx_wmac_device.name = "ar933x_wmac";
69        ar9xxx_wmac_resources[0].start = AR933X_WMAC_BASE;
70        ar9xxx_wmac_resources[0].end = AR933X_WMAC_BASE + AR933X_WMAC_SIZE - 1;
71        if (ar71xx_ref_freq == MHZ_25)
72                ar9xxx_wmac_data.is_clk_25mhz = true;
73}
74
75static void ar934x_wmac_init(void)
76{
77        ar9xxx_wmac_device.name = "ar934x_wmac";
78        ar9xxx_wmac_resources[0].start = AR934X_WMAC_BASE;
79        ar9xxx_wmac_resources[0].end = AR934X_WMAC_BASE + AR934X_WMAC_SIZE - 1;
80        if (ar71xx_ref_freq == MHZ_25)
81                ar9xxx_wmac_data.is_clk_25mhz = true;
82}
83
84void __init ar9xxx_add_device_wmac(u8 *cal_data, u8 *mac_addr)
85{
86        switch (ar71xx_soc) {
87        case AR71XX_SOC_AR9130:
88        case AR71XX_SOC_AR9132:
89                ar913x_wmac_init();
90                break;
91
92        case AR71XX_SOC_AR9330:
93        case AR71XX_SOC_AR9331:
94                ar933x_wmac_init();
95                break;
96
97        case AR71XX_SOC_AR9341:
98        case AR71XX_SOC_AR9342:
99        case AR71XX_SOC_AR9344:
100                ar934x_wmac_init();
101                break;
102
103        default:
104                BUG();
105        }
106
107        if (cal_data)
108                memcpy(ar9xxx_wmac_data.eeprom_data, cal_data,
109                       sizeof(ar9xxx_wmac_data.eeprom_data));
110
111        if (mac_addr) {
112                memcpy(ar9xxx_wmac_mac, mac_addr, sizeof(ar9xxx_wmac_mac));
113                ar9xxx_wmac_data.macaddr = ar9xxx_wmac_mac;
114        }
115
116        platform_device_register(&ar9xxx_wmac_device);
117}
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