1 files changed, 109 insertions, 0 deletions
diff --git a/arch/mips/ath79/dev-wmac.c b/arch/mips/ath79/dev-wmac.c
new file mode 100644
index 00000000..9c717bf9
--- /dev/null
+++ b/arch/mips/ath79/dev-wmac.c
@@ -0,0 +1,109 @@
+/*
+ *  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_set(AR933X_RESET_WMAC);
+	ath79_device_reset_clear(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);
+}