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MIPS: ath79: add common WMAC device for AR913X based boards

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Add common platform_device and helper code to make the registration
of the built-in wireless MAC easier on the Atheros AR9130/AR9132
based boards. Also register the WMAC device on the AR81 board.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: Imre Kaloz <kaloz@openwrt.org>,
Cc: Luis R. Rodriguez <lrodriguez@atheros.com>
Cc: Cliff Holden <Cliff.Holden@Atheros.com>
Cc: Kathy Giori <Kathy.Giori@Atheros.com>
Patchwork: https://patchwork.linux-mips.org/patch/1962/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Gabor Juhos 2011-01-04 21:28:29 +01:00 committed by Ralf Baechle
parent aa6695ec8b
commit f5b35d0b16
6 changed files with 92 additions and 0 deletions
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5
arch/mips/ath79/Kconfig
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@ -5,6 +5,7 @@ menu "Atheros AR71XX/AR724X/AR913X machine selection"
config ATH79_MACH_AP81
bool "Atheros AP81 reference board"
select SOC_AR913X
select ATH79_DEV_AR913X_WMAC
select ATH79_DEV_GPIO_BUTTONS
select ATH79_DEV_LEDS_GPIO
select ATH79_DEV_SPI
@ -33,6 +34,10 @@ config SOC_AR724X
config SOC_AR913X
def_bool n
config ATH79_DEV_AR913X_WMAC
depends on SOC_AR913X
def_bool n
config ATH79_DEV_GPIO_BUTTONS
def_bool n

1
arch/mips/ath79/Makefile
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@ -16,6 +16,7 @@ obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
# Devices
#
obj-y += dev-common.o
obj-$(CONFIG_ATH79_DEV_AR913X_WMAC) += dev-ar913x-wmac.o
obj-$(CONFIG_ATH79_DEV_GPIO_BUTTONS) += dev-gpio-buttons.o
obj-$(CONFIG_ATH79_DEV_LEDS_GPIO) += dev-leds-gpio.o
obj-$(CONFIG_ATH79_DEV_SPI) += dev-spi.o

60
arch/mips/ath79/dev-ar913x-wmac.c Normal file
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@ -0,0 +1,60 @@
/*
* Atheros AR913X SoC built-in WMAC device support
*
* Copyright (C) 2008-2010 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-ar913x-wmac.h"
static struct ath9k_platform_data ar913x_wmac_data;
static struct resource ar913x_wmac_resources[] = {
{
.start = AR913X_WMAC_BASE,
.end = AR913X_WMAC_BASE + AR913X_WMAC_SIZE - 1,
.flags = IORESOURCE_MEM,
}, {
.start = ATH79_CPU_IRQ_IP2,
.end = ATH79_CPU_IRQ_IP2,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device ar913x_wmac_device = {
.name = "ath9k",
.id = -1,
.resource = ar913x_wmac_resources,
.num_resources = ARRAY_SIZE(ar913x_wmac_resources),
.dev = {
.platform_data = &ar913x_wmac_data,
},
};
void __init ath79_register_ar913x_wmac(u8 *cal_data)
{
if (cal_data)
memcpy(ar913x_wmac_data.eeprom_data, cal_data,
sizeof(ar913x_wmac_data.eeprom_data));
/* reset the WMAC */
ath79_device_reset_set(AR913X_RESET_AMBA2WMAC);
mdelay(10);
ath79_device_reset_clear(AR913X_RESET_AMBA2WMAC);
mdelay(10);
platform_device_register(&ar913x_wmac_device);
}

17
arch/mips/ath79/dev-ar913x-wmac.h Normal file
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@ -0,0 +1,17 @@
/*
* Atheros AR913X SoC built-in WMAC device support
*
* Copyright (C) 2008-2010 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.
*/
#ifndef _ATH79_DEV_AR913X_WMAC_H
#define _ATH79_DEV_AR913X_WMAC_H
void ath79_register_ar913x_wmac(u8 *cal_data);
#endif /* _ATH79_DEV_AR913X_WMAC_H */

6
arch/mips/ath79/mach-ap81.c
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@ -10,6 +10,7 @@
*/
#include "machtypes.h"
#include "dev-ar913x-wmac.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-spi.h"
@ -25,6 +26,8 @@
#define AP81_KEYS_POLL_INTERVAL 20 /* msecs */
#define AP81_KEYS_DEBOUNCE_INTERVAL (3 * AP81_KEYS_POLL_INTERVAL)
#define AP81_CAL_DATA_ADDR 0x1fff1000
static struct gpio_led ap81_leds_gpio[] __initdata = {
{
.name = "ap81:green:status",
@ -79,6 +82,8 @@ static struct ath79_spi_platform_data ap81_spi_data = {
static void __init ap81_setup(void)
{
u8 *cal_data = (u8 *) KSEG1ADDR(AP81_CAL_DATA_ADDR);
ath79_register_leds_gpio(-1, ARRAY_SIZE(ap81_leds_gpio),
ap81_leds_gpio);
ath79_register_gpio_keys_polled(-1, AP81_KEYS_POLL_INTERVAL,
@ -86,6 +91,7 @@ static void __init ap81_setup(void)
ap81_gpio_keys);
ath79_register_spi(&ap81_spi_data, ap81_spi_info,
ARRAY_SIZE(ap81_spi_info));
ath79_register_ar913x_wmac(cal_data);
}
MIPS_MACHINE(ATH79_MACH_AP81, "AP81", "Atheros AP81 reference board",

3
arch/mips/include/asm/mach-ath79/ar71xx_regs.h
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@ -34,6 +34,9 @@
#define AR71XX_RESET_BASE (AR71XX_APB_BASE + 0x00060000)
#define AR71XX_RESET_SIZE 0x100
#define AR913X_WMAC_BASE (AR71XX_APB_BASE + 0x000C0000)
#define AR913X_WMAC_SIZE 0x30000
/*
* DDR_CTRL block
*/