mirror of https://gitee.com/openkylin/linux.git
110 lines
2.5 KiB
C
110 lines
2.5 KiB
C
/*
|
|
* Atheros AR913X/AR933X SoC built-in WMAC device support
|
|
*
|
|
* Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
|
|
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 as published
|
|
* by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/ath9k_platform.h>
|
|
|
|
#include <asm/mach-ath79/ath79.h>
|
|
#include <asm/mach-ath79/ar71xx_regs.h>
|
|
#include "dev-wmac.h"
|
|
|
|
static struct ath9k_platform_data ath79_wmac_data;
|
|
|
|
static struct resource ath79_wmac_resources[] = {
|
|
{
|
|
/* .start and .end fields are filled dynamically */
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.start = ATH79_CPU_IRQ_IP2,
|
|
.end = ATH79_CPU_IRQ_IP2,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device ath79_wmac_device = {
|
|
.name = "ath9k",
|
|
.id = -1,
|
|
.resource = ath79_wmac_resources,
|
|
.num_resources = ARRAY_SIZE(ath79_wmac_resources),
|
|
.dev = {
|
|
.platform_data = &ath79_wmac_data,
|
|
},
|
|
};
|
|
|
|
static void __init ar913x_wmac_setup(void)
|
|
{
|
|
/* reset the WMAC */
|
|
ath79_device_reset_set(AR913X_RESET_AMBA2WMAC);
|
|
mdelay(10);
|
|
|
|
ath79_device_reset_clear(AR913X_RESET_AMBA2WMAC);
|
|
mdelay(10);
|
|
|
|
ath79_wmac_resources[0].start = AR913X_WMAC_BASE;
|
|
ath79_wmac_resources[0].end = AR913X_WMAC_BASE + AR913X_WMAC_SIZE - 1;
|
|
}
|
|
|
|
|
|
static int ar933x_wmac_reset(void)
|
|
{
|
|
ath79_device_reset_clear(AR933X_RESET_WMAC);
|
|
ath79_device_reset_set(AR933X_RESET_WMAC);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ar933x_r1_get_wmac_revision(void)
|
|
{
|
|
return ath79_soc_rev;
|
|
}
|
|
|
|
static void __init ar933x_wmac_setup(void)
|
|
{
|
|
u32 t;
|
|
|
|
ar933x_wmac_reset();
|
|
|
|
ath79_wmac_device.name = "ar933x_wmac";
|
|
|
|
ath79_wmac_resources[0].start = AR933X_WMAC_BASE;
|
|
ath79_wmac_resources[0].end = AR933X_WMAC_BASE + AR933X_WMAC_SIZE - 1;
|
|
|
|
t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
|
|
if (t & AR933X_BOOTSTRAP_REF_CLK_40)
|
|
ath79_wmac_data.is_clk_25mhz = false;
|
|
else
|
|
ath79_wmac_data.is_clk_25mhz = true;
|
|
|
|
if (ath79_soc_rev == 1)
|
|
ath79_wmac_data.get_mac_revision = ar933x_r1_get_wmac_revision;
|
|
|
|
ath79_wmac_data.external_reset = ar933x_wmac_reset;
|
|
}
|
|
|
|
void __init ath79_register_wmac(u8 *cal_data)
|
|
{
|
|
if (soc_is_ar913x())
|
|
ar913x_wmac_setup();
|
|
else if (soc_is_ar933x())
|
|
ar933x_wmac_setup();
|
|
else
|
|
BUG();
|
|
|
|
if (cal_data)
|
|
memcpy(ath79_wmac_data.eeprom_data, cal_data,
|
|
sizeof(ath79_wmac_data.eeprom_data));
|
|
|
|
platform_device_register(&ath79_wmac_device);
|
|
}
|