2 * Atheros AR9XXX SoCs built-in WMAC device support
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>
8 * Parts of this file are based on Atheros 2.6.15/2.6.31 BSP
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.
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>
22 #include <asm/mach-ar71xx/ar71xx.h>
24 #include "dev-ar9xxx-wmac.h"
26 #define MHZ_25 (25 * 1000 * 1000)
28 static struct ath9k_platform_data ar9xxx_wmac_data
= {
31 static char ar9xxx_wmac_mac
[6];
33 static struct resource ar9xxx_wmac_resources
[] = {
35 /* .start and .end fields are filled dynamically */
36 .flags
= IORESOURCE_MEM
,
38 .start
= AR71XX_CPU_IRQ_IP2
,
39 .end
= AR71XX_CPU_IRQ_IP2
,
40 .flags
= IORESOURCE_IRQ
,
44 static struct platform_device ar9xxx_wmac_device
= {
47 .resource
= ar9xxx_wmac_resources
,
48 .num_resources
= ARRAY_SIZE(ar9xxx_wmac_resources
),
50 .platform_data
= &ar9xxx_wmac_data
,
54 static void ar913x_wmac_init(void)
56 ar71xx_device_stop(RESET_MODULE_AMBA2WMAC
);
59 ar71xx_device_start(RESET_MODULE_AMBA2WMAC
);
62 ar9xxx_wmac_resources
[0].start
= AR91XX_WMAC_BASE
;
63 ar9xxx_wmac_resources
[0].end
= AR91XX_WMAC_BASE
+ AR91XX_WMAC_SIZE
- 1;
66 static int ar933x_r1_get_wmac_revision(void)
68 return ar71xx_soc_rev
;
71 static int ar933x_wmac_reset(void)
75 ar71xx_device_stop(AR933X_RESET_WMAC
);
76 ar71xx_device_start(AR933X_RESET_WMAC
);
81 bootstrap
= ar71xx_reset_rr(AR933X_RESET_REG_BOOTSTRAP
);
82 if ((bootstrap
& AR933X_BOOTSTRAP_EEPBUSY
) == 0)
92 pr_err("ar93xx: WMAC reset timed out");
96 static void ar933x_wmac_init(void)
98 ar9xxx_wmac_device
.name
= "ar933x_wmac";
99 ar9xxx_wmac_resources
[0].start
= AR933X_WMAC_BASE
;
100 ar9xxx_wmac_resources
[0].end
= AR933X_WMAC_BASE
+ AR933X_WMAC_SIZE
- 1;
101 if (ar71xx_ref_freq
== MHZ_25
)
102 ar9xxx_wmac_data
.is_clk_25mhz
= true;
104 if (ar71xx_soc_rev
== 1)
105 ar9xxx_wmac_data
.get_mac_revision
= ar933x_r1_get_wmac_revision
;
107 ar9xxx_wmac_data
.external_reset
= ar933x_wmac_reset
;
112 static void ar934x_wmac_init(void)
114 ar9xxx_wmac_device
.name
= "ar934x_wmac";
115 ar9xxx_wmac_resources
[0].start
= AR934X_WMAC_BASE
;
116 ar9xxx_wmac_resources
[0].end
= AR934X_WMAC_BASE
+ AR934X_WMAC_SIZE
- 1;
117 if (ar71xx_ref_freq
== MHZ_25
)
118 ar9xxx_wmac_data
.is_clk_25mhz
= true;
121 void __init
ar9xxx_add_device_wmac(u8
*cal_data
, u8
*mac_addr
)
123 switch (ar71xx_soc
) {
124 case AR71XX_SOC_AR9130
:
125 case AR71XX_SOC_AR9132
:
129 case AR71XX_SOC_AR9330
:
130 case AR71XX_SOC_AR9331
:
134 case AR71XX_SOC_AR9341
:
135 case AR71XX_SOC_AR9342
:
136 case AR71XX_SOC_AR9344
:
145 memcpy(ar9xxx_wmac_data
.eeprom_data
, cal_data
,
146 sizeof(ar9xxx_wmac_data
.eeprom_data
));
149 memcpy(ar9xxx_wmac_mac
, mac_addr
, sizeof(ar9xxx_wmac_mac
));
150 ar9xxx_wmac_data
.macaddr
= ar9xxx_wmac_mac
;
153 platform_device_register(&ar9xxx_wmac_device
);