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

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>

1 files changed, 60 insertions, 0 deletions

diff --git a/arch/mips/ath79/dev-ar913x-wmac.c b/arch/mips/ath79/dev-ar913x-wmac.c
new file mode 100644
index 000000000000..48f425a5ba28
--- /dev/null
+++ b/arch/mips/ath79/dev-ar913x-wmac.c
@@ -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);
+}