openwrt_lede/package/kernel/mac80211/patches/602-rt2x00-introduce-rt2x00eeprom.patch

--- a/.local-symbols
+++ b/.local-symbols
@@ -336,6 +336,7 @@ RT2X00_LIB_FIRMWARE=
 RT2X00_LIB_CRYPTO=
 RT2X00_LIB_LEDS=
 RT2X00_LIB_DEBUGFS=
+RT2X00_LIB_EEPROM=
 RT2X00_DEBUG=
 WLAN_VENDOR_REALTEK=
 RTL8180=
--- a/drivers/net/wireless/ralink/rt2x00/Kconfig
+++ b/drivers/net/wireless/ralink/rt2x00/Kconfig
@@ -69,6 +69,7 @@ config RT2800PCI
 	select RT2X00_LIB_MMIO
 	select RT2X00_LIB_PCI
 	select RT2X00_LIB_FIRMWARE
+	select RT2X00_LIB_EEPROM
 	select RT2X00_LIB_CRYPTO
 	depends on CRC_CCITT
 	depends on EEPROM_93CX6
@@ -215,6 +216,7 @@ config RT2800SOC
 	select RT2X00_LIB_MMIO
 	select RT2X00_LIB_CRYPTO
 	select RT2X00_LIB_FIRMWARE
+	select RT2X00_LIB_EEPROM
 	select RT2800_LIB
 	select RT2800_LIB_MMIO
 	---help---
@@ -265,6 +267,9 @@ config RT2X00_LIB_FIRMWARE
 config RT2X00_LIB_CRYPTO
 	bool
 
+config RT2X00_LIB_EEPROM
+	boolean
+
 config RT2X00_LIB_LEDS
 	bool
 	default y if (RT2X00_LIB=y && LEDS_CLASS=y) || (RT2X00_LIB=m && LEDS_CLASS!=n)
--- a/drivers/net/wireless/ralink/rt2x00/Makefile
+++ b/drivers/net/wireless/ralink/rt2x00/Makefile
@@ -7,6 +7,7 @@ rt2x00lib-$(CPTCFG_RT2X00_LIB_DEBUGFS)	+
 rt2x00lib-$(CPTCFG_RT2X00_LIB_CRYPTO)	+= rt2x00crypto.o
 rt2x00lib-$(CPTCFG_RT2X00_LIB_FIRMWARE)	+= rt2x00firmware.o
 rt2x00lib-$(CPTCFG_RT2X00_LIB_LEDS)	+= rt2x00leds.o
+rt2x00lib-$(CPTCFG_RT2X00_LIB_EEPROM)	+= rt2x00eeprom.o
 
 obj-$(CPTCFG_RT2X00_LIB)		+= rt2x00lib.o
 obj-$(CPTCFG_RT2X00_LIB_MMIO)		+= rt2x00mmio.o
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.h
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.h
@@ -48,6 +48,8 @@ struct rt2800_drv_data {
 	struct ieee80211_sta *wcid_to_sta[STA_IDS_SIZE];
 };
 
+#include "rt2800.h"
+
 struct rt2800_ops {
 	void (*register_read)(struct rt2x00_dev *rt2x00dev,
 			      const unsigned int offset, u32 *value);
@@ -147,6 +149,15 @@ static inline int rt2800_read_eeprom(str
 {
 	const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
 
+	if (rt2x00dev->eeprom_file) {
+		memcpy(rt2x00dev->eeprom, rt2x00dev->eeprom_file->data,
+		       EEPROM_SIZE);
+		return 0;
+	}
+
+	if (!rt2800ops->read_eeprom)
+		return -EINVAL;
+
 	return rt2800ops->read_eeprom(rt2x00dev);
 }
 
--- a/drivers/net/wireless/ralink/rt2x00/rt2800soc.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800soc.c
@@ -102,19 +102,6 @@ static int rt2800soc_set_device_state(st
 	return retval;
 }
 
-static int rt2800soc_read_eeprom(struct rt2x00_dev *rt2x00dev)
-{
-	void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE);
-
-	if (!base_addr)
-		return -ENOMEM;
-
-	memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);
-
-	iounmap(base_addr);
-	return 0;
-}
-
 /* Firmware functions */
 static char *rt2800soc_get_firmware_name(struct rt2x00_dev *rt2x00dev)
 {
@@ -178,7 +165,6 @@ static const struct rt2800_ops rt2800soc
 	.register_multiread	= rt2x00mmio_register_multiread,
 	.register_multiwrite	= rt2x00mmio_register_multiwrite,
 	.regbusy_read		= rt2x00mmio_regbusy_read,
-	.read_eeprom		= rt2800soc_read_eeprom,
 	.hwcrypt_disabled	= rt2800soc_hwcrypt_disabled,
 	.drv_write_firmware	= rt2800soc_write_firmware,
 	.drv_init_registers	= rt2800mmio_init_registers,
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
@@ -702,6 +702,7 @@ enum rt2x00_capability_flags {
 	REQUIRE_HT_TX_DESC,
 	REQUIRE_PS_AUTOWAKE,
 	REQUIRE_DELAYED_RFKILL,
+	REQUIRE_EEPROM_FILE,
 
 	/*
 	 * Capabilities
@@ -977,6 +978,11 @@ struct rt2x00_dev {
 	const struct firmware *fw;
 
 	/*
+	 * EEPROM image.
+	 */
+	const struct firmware *eeprom_file;
+
+	/*
 	 * FIFO for storing tx status reports between isr and tasklet.
 	 */
 	DECLARE_KFIFO_PTR(txstatus_fifo, u32);
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
@@ -1418,6 +1418,10 @@ int rt2x00lib_probe_dev(struct rt2x00_de
 	INIT_DELAYED_WORK(&rt2x00dev->autowakeup_work, rt2x00lib_autowakeup);
 	INIT_WORK(&rt2x00dev->sleep_work, rt2x00lib_sleep);
 
+	retval = rt2x00lib_load_eeprom_file(rt2x00dev);
+	if (retval)
+		goto exit;
+
 	/*
 	 * Let the driver probe the device to detect the capabilities.
 	 */
@@ -1556,6 +1560,11 @@ void rt2x00lib_remove_dev(struct rt2x00_
 	 * Free the driver data.
 	 */
 	kfree(rt2x00dev->drv_data);
+
+	/*
+	 * Free EEPROM image.
+	 */
+	rt2x00lib_free_eeprom_file(rt2x00dev);
 }
 EXPORT_SYMBOL_GPL(rt2x00lib_remove_dev);
 
--- /dev/null
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00eeprom.c
@@ -0,0 +1,105 @@
+/*
+	Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
+	Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com>
+	<http://rt2x00.serialmonkey.com>
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to the
+	Free Software Foundation, Inc.,
+	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+	Module: rt2x00lib
+	Abstract: rt2x00 eeprom file loading routines.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "rt2x00.h"
+#include "rt2x00lib.h"
+
+static const char *
+rt2x00lib_get_eeprom_file_name(struct rt2x00_dev *rt2x00dev)
+{
+	struct rt2x00_platform_data *pdata = rt2x00dev->dev->platform_data;
+
+	if (pdata && pdata->eeprom_file_name)
+		return pdata->eeprom_file_name;
+
+	return NULL
+}
+
+static int rt2x00lib_request_eeprom_file(struct rt2x00_dev *rt2x00dev)
+{
+	const struct firmware *ee;
+	const char *ee_name;
+	int retval;
+
+	ee_name = rt2x00lib_get_eeprom_file_name(rt2x00dev);
+	if (!ee_name && test_bit(REQUIRE_EEPROM_FILE, &rt2x00dev->cap_flags)) {
+		rt2x00_err(rt2x00dev, "Required EEPROM name is missing.");
+		return -EINVAL;
+	}
+
+	if (!ee_name)
+		return 0;
+
+	rt2x00_info(rt2x00dev, "Loading EEPROM data from '%s'.\n", ee_name);
+
+	retval = request_firmware(&ee, ee_name, rt2x00dev->dev);
+	if (retval) {
+		rt2x00_err(rt2x00dev, "Failed to request EEPROM.\n");
+		return retval;
+	}
+
+	if (!ee || !ee->size || !ee->data) {
+		rt2x00_err(rt2x00dev, "Failed to read EEPROM file.\n");
+		retval = -ENOENT;
+		goto err_exit;
+	}
+
+	if (ee->size != rt2x00dev->ops->eeprom_size) {
+		rt2x00_err(rt2x00dev,
+			   "EEPROM file size is invalid, it should be %d bytes\n",
+			   rt2x00dev->ops->eeprom_size);
+		retval = -EINVAL;
+		goto err_release_ee;
+	}
+
+	rt2x00dev->eeprom_file = ee;
+	return 0;
+
+err_release_ee:
+	release_firmware(ee);
+err_exit:
+	return retval;
+}
+
+int rt2x00lib_load_eeprom_file(struct rt2x00_dev *rt2x00dev)
+{
+	int retval;
+
+	retval = rt2x00lib_request_eeprom_file(rt2x00dev);
+	if (retval)
+		return retval;
+
+	return 0;
+}
+
+void rt2x00lib_free_eeprom_file(struct rt2x00_dev *rt2x00dev)
+{
+	release_firmware(rt2x00dev->eeprom_file);
+	rt2x00dev->eeprom_file = NULL;
+}
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00lib.h
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00lib.h
@@ -297,6 +297,22 @@ static inline void rt2x00lib_free_firmwa
 #endif /* CPTCFG_RT2X00_LIB_FIRMWARE */
 
 /*
+ * EEPROM file handlers.
+ */
+#ifdef CPTCFG_RT2X00_LIB_EEPROM
+int rt2x00lib_load_eeprom_file(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_free_eeprom_file(struct rt2x00_dev *rt2x00dev);
+#else
+static inline int rt2x00lib_load_eeprom_file(struct rt2x00_dev *rt2x00dev)
+{
+	return 0;
+}
+static inline void rt2x00lib_free_eeprom_file(struct rt2x00_dev *rt2x00dev)
+{
+}
+#endif /* CPTCFG_RT2X00_LIB_EEPROM */
+
+/*
  * Debugfs handlers.
  */
 #ifdef CPTCFG_RT2X00_LIB_DEBUGFS
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00soc.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00soc.c
@@ -97,6 +97,7 @@ int rt2x00soc_probe(struct platform_devi
 	if (IS_ERR(rt2x00dev->clk))
 		rt2x00dev->clk = NULL;
 
+	set_bit(REQUIRE_EEPROM_FILE, &rt2x00dev->cap_flags);
 	rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC);
 
 	retval = rt2x00soc_alloc_reg(rt2x00dev);