lantiq: Fixes to athxk EEPROM loading

Use platform data array for storing ath5k EEPROM instead of creating another one.
EEPROM size is 2048 words (2 bytes), so we must read 4096 bytes from flash.
No need to keep the checksum fix now that the EEPROM is loaded completely.
Add a manual eeprom swap for ath9k and keep the endian way.
Use mac-offset property retrieved from the DTS.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

SVN-Revision: 36901

7 files changed, 36 insertions, 59 deletions

diff --git a/target/linux/lantiq/dts/ARV4518PWR01.dts b/target/linux/lantiq/dts/ARV4518PWR01.dts
index 0256618..64e2974 100644
--- a/target/linux/lantiq/dts/ARV4518PWR01.dts
+++ b/target/linux/lantiq/dts/ARV4518PWR01.dts
@@ -71,7 +71,7 @@
 
 			ath5k_eep {
 				compatible = "ath5k,eeprom";
-				reg = <0 0x3f0400 0x800
+				reg = <0 0x3f0400 0x1000
 					0 0x3f0016 0x6>;
 				ath,mac-increment = <1>;
 				ath,eep-swap;
diff --git a/target/linux/lantiq/dts/ARV4518PWR01A.dts b/target/linux/lantiq/dts/ARV4518PWR01A.dts
index e6d83ed..211ad87 100644
--- a/target/linux/lantiq/dts/ARV4518PWR01A.dts
+++ b/target/linux/lantiq/dts/ARV4518PWR01A.dts
@@ -71,7 +71,7 @@
 
 			ath5k_eep {
 				compatible = "ath5k,eeprom";
-				reg = <0 0x3f0400 0x800
+				reg = <0 0x3f0400 0x1000
 					0 0x3f0016 0x6>;
 				ath,mac-increment = <1>;
 				ath,eep-swap;
diff --git a/target/linux/lantiq/dts/ARV4525PW.dts b/target/linux/lantiq/dts/ARV4525PW.dts
index e2d3860..b6cde8d 100644
--- a/target/linux/lantiq/dts/ARV4525PW.dts
+++ b/target/linux/lantiq/dts/ARV4525PW.dts
@@ -57,7 +57,7 @@
 
 			ath5k_eep {
 				compatible = "ath5k,eeprom";
-				reg = <0 0x3f0400 0x800>;
+				reg = <0 0x3f0400 0x1000>;
 				ath,mac-offset = <0>;
 				ath,eep-swap;
 			};
diff --git a/target/linux/lantiq/dts/ARV452CQW.dts b/target/linux/lantiq/dts/ARV452CQW.dts
index b40f595..a261d93 100644
--- a/target/linux/lantiq/dts/ARV452CQW.dts
+++ b/target/linux/lantiq/dts/ARV452CQW.dts
@@ -62,7 +62,7 @@
 
 			ath5k_eep {
 				compatible = "ath5k,eeprom";
-				reg = <0 0x3f0400 0x800>;
+				reg = <0 0x3f0400 0x1000>;
 				ath,mac-offset = <0>;
 				ath,eep-swap;
 			};
diff --git a/target/linux/lantiq/dts/ARV7518PW.dts b/target/linux/lantiq/dts/ARV7518PW.dts
index 70e7d8e..e76abb5 100644
--- a/target/linux/lantiq/dts/ARV7518PW.dts
+++ b/target/linux/lantiq/dts/ARV7518PW.dts
@@ -69,12 +69,11 @@
 
 			ath9k_eep {
 				compatible = "ath9k,eeprom";
-				reg = <0 0x7f0400 0x800
+				reg = <0 0x7f0400 0x1000
 					0 0x7f0016 0x6>;
 				ath,mac-increment = <1>;
 				ath,pci-slot = <14>;
-				ath,eep-swap;
-				ath,eep-csum;
+				ath,eep-endian;
 			};
 		};
 
diff --git a/target/linux/lantiq/patches-3.7/0302-wifi-eep.patch b/target/linux/lantiq/patches-3.7/0302-wifi-eep.patch
index 7233e52..8932dfb 100644
--- a/target/linux/lantiq/patches-3.7/0302-wifi-eep.patch
+++ b/target/linux/lantiq/patches-3.7/0302-wifi-eep.patch
@@ -9,7 +9,7 @@
  obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
 --- /dev/null
 +++ b/arch/mips/lantiq/xway/ath_eep.c
-@@ -0,0 +1,206 @@
+@@ -0,0 +1,195 @@
 +/*
 + *  Copyright (C) 2011 Luca Olivetti <luca@ventoso.org>
 + *  Copyright (C) 2011 John Crispin <blogic@openwrt.org>
@@ -35,7 +35,6 @@
 +struct ath9k_platform_data ath9k_pdata = {
 +	.led_pin = -1,
 +};
-+static u16 ath5k_eeprom_data[ATH5K_PLAT_EEP_MAX_WORDS];
 +static u8 athxk_eeprom_mac[6];
 +
 +static int ath9k_pci_plat_dev_init(struct pci_dev *dev)
@@ -52,7 +51,6 @@
 +	int mac_offset;
 +	u32 mac_inc = 0, pci_slot = 0;
 +	int i;
-+	u16 *eepdata, sum, el;
 +
 +	eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 +	mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
@@ -61,34 +59,26 @@
 +		dev_err(&pdev->dev, "failed to load eeprom address\n");
 +		return -ENODEV;
 +	}
-+	if (resource_size(eep_res) != ATH9K_PLAT_EEP_MAX_WORDS) {
++	if (resource_size(eep_res) != ATH9K_PLAT_EEP_MAX_WORDS << 1) {
 +		dev_err(&pdev->dev, "eeprom has an invalid size\n");
 +		return -EINVAL;
 +	}
 +
 +	eep = ioremap(eep_res->start, resource_size(eep_res));
-+	memcpy_fromio(ath9k_pdata.eeprom_data, eep, ATH9K_PLAT_EEP_MAX_WORDS);
++	memcpy_fromio(ath9k_pdata.eeprom_data, eep, ATH9K_PLAT_EEP_MAX_WORDS << 1);
 +
-+	if (of_find_property(np, "ath,eep-swap", NULL)) {
++	if (of_find_property(np, "ath,eep-swap", NULL))
++		for (i = 0; i < ATH9K_PLAT_EEP_MAX_WORDS; i++)
++			ath9k_pdata.eeprom_data[i] = swab16(ath9k_pdata.eeprom_data[i]);
++
++	if (of_find_property(np, "ath,eep-endian", NULL)) {
 +		ath9k_pdata.endian_check = true;
 +
 +		dev_info(&pdev->dev, "endian check enabled.\n");
 +	}
 +
-+	if (of_find_property(np, "ath,eep-csum", NULL)) {
-+		sum = ath9k_pdata.eeprom_data[0x200>>1];
-+		el = sum / sizeof(u16) - 2;  /* skip length and (old) checksum */
-+		eepdata = (u16 *) (&ath9k_pdata.eeprom_data[0x204>>1]); /* after checksum */
-+		for (i = 0; i < el; i++)
-+			sum ^= *eepdata++;
-+		sum ^= 0xffff;
-+		ath9k_pdata.eeprom_data[0x202>>1] = sum;
-+
-+		dev_info(&pdev->dev, "checksum fixed.\n");
-+	}
-+
 +	if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
-+		memcpy_fromio(athxk_eeprom_mac, (void*) ath9k_pdata.eeprom_data, 6);
++		memcpy_fromio(athxk_eeprom_mac, (void*) ath9k_pdata.eeprom_data + mac_offset, 6);
 +	} else if (mac_res) {
 +		if (resource_size(mac_res) != 6) {
 +			dev_err(&pdev->dev, "mac has an invalid size\n");
@@ -135,7 +125,7 @@
 +{
 +	return platform_driver_probe(&ath9k_eeprom_driver, of_ath9k_eeprom_probe);
 +}
-+arch_initcall(of_ath9k_eeprom_init);
++late_initcall(of_ath9k_eeprom_init);
 +
 +
 +static int ath5k_pci_plat_dev_init(struct pci_dev *dev)
@@ -160,20 +150,20 @@
 +		dev_err(&pdev->dev, "failed to load eeprom address\n");
 +		return -ENODEV;
 +	}
-+	if (resource_size(eep_res) != ATH5K_PLAT_EEP_MAX_WORDS) {
++	if (resource_size(eep_res) != ATH5K_PLAT_EEP_MAX_WORDS << 1) {
 +		dev_err(&pdev->dev, "eeprom has an invalid size\n");
 +		return -EINVAL;
 +	}
 +
 +	eep = ioremap(eep_res->start, resource_size(eep_res));
-+	memcpy_fromio(ath5k_eeprom_data, eep, ATH5K_PLAT_EEP_MAX_WORDS);
++	memcpy_fromio(ath5k_pdata.eeprom_data, eep, ATH5K_PLAT_EEP_MAX_WORDS << 1);
 +
 +	if (of_find_property(np, "ath,eep-swap", NULL))
-+		for (i = 0; i < (ATH5K_PLAT_EEP_MAX_WORDS >> 1); i++)
-+				ath5k_eeprom_data[i] = swab16(ath5k_eeprom_data[i]);
++		for (i = 0; i < ATH5K_PLAT_EEP_MAX_WORDS; i++)
++			ath5k_pdata.eeprom_data[i] = swab16(ath5k_pdata.eeprom_data[i]);
 +
 +	if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
-+		memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_eeprom_data, 6);
++		memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_pdata.eeprom_data + mac_offset, 6);
 +	} else if (mac_res) {
 +		if (resource_size(mac_res) != 6) {
 +			dev_err(&pdev->dev, "mac has an invalid size\n");
@@ -189,7 +179,6 @@
 +	if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
 +		athxk_eeprom_mac[5] += mac_inc;
 +
-+	ath5k_pdata.eeprom_data = ath5k_eeprom_data;
 +	ath5k_pdata.macaddr = athxk_eeprom_mac;
 +	ltq_pci_plat_dev_init = ath5k_pci_plat_dev_init;
 +
@@ -215,7 +204,7 @@
 +{
 +	return platform_driver_probe(&ath5k_eeprom_driver, of_ath5k_eeprom_probe);
 +}
-+device_initcall(of_ath5k_eeprom_init);
++late_initcall(of_ath5k_eeprom_init);
 --- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
 +++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
 @@ -90,5 +90,8 @@ int xrx200_gphy_boot(struct device *dev,
diff --git a/target/linux/lantiq/patches-3.8/0037-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch b/target/linux/lantiq/patches-3.8/0037-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch
index 4aac2bc..3d64c78 100644
--- a/target/linux/lantiq/patches-3.8/0037-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch
+++ b/target/linux/lantiq/patches-3.8/0037-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch
@@ -50,7 +50,7 @@ Subject: [PATCH 37/40] owrt: lantiq: wifi and ethernet eeprom handling
  obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
 --- /dev/null
 +++ b/arch/mips/lantiq/xway/ath_eep.c
-@@ -0,0 +1,206 @@
+@@ -0,0 +1,195 @@
 +/*
 + *  Copyright (C) 2011 Luca Olivetti <luca@ventoso.org>
 + *  Copyright (C) 2011 John Crispin <blogic@openwrt.org>
@@ -76,7 +76,6 @@ Subject: [PATCH 37/40] owrt: lantiq: wifi and ethernet eeprom handling
 +struct ath9k_platform_data ath9k_pdata = {
 +	.led_pin = -1,
 +};
-+static u16 ath5k_eeprom_data[ATH5K_PLAT_EEP_MAX_WORDS];
 +static u8 athxk_eeprom_mac[6];
 +
 +static int ath9k_pci_plat_dev_init(struct pci_dev *dev)
@@ -93,7 +92,6 @@ Subject: [PATCH 37/40] owrt: lantiq: wifi and ethernet eeprom handling
 +	int mac_offset;
 +	u32 mac_inc = 0, pci_slot = 0;
 +	int i;
-+	u16 *eepdata, sum, el;
 +
 +	eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 +	mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
@@ -102,34 +100,26 @@ Subject: [PATCH 37/40] owrt: lantiq: wifi and ethernet eeprom handling
 +		dev_err(&pdev->dev, "failed to load eeprom address\n");
 +		return -ENODEV;
 +	}
-+	if (resource_size(eep_res) != ATH9K_PLAT_EEP_MAX_WORDS) {
++	if (resource_size(eep_res) != ATH9K_PLAT_EEP_MAX_WORDS << 1) {
 +		dev_err(&pdev->dev, "eeprom has an invalid size\n");
 +		return -EINVAL;
 +	}
 +
 +	eep = ioremap(eep_res->start, resource_size(eep_res));
-+	memcpy_fromio(ath9k_pdata.eeprom_data, eep, ATH9K_PLAT_EEP_MAX_WORDS);
++	memcpy_fromio(ath9k_pdata.eeprom_data, eep, ATH9K_PLAT_EEP_MAX_WORDS << 1);
 +
-+	if (of_find_property(np, "ath,eep-swap", NULL)) {
++	if (of_find_property(np, "ath,eep-swap", NULL))
++		for (i = 0; i < ATH9K_PLAT_EEP_MAX_WORDS; i++)
++			ath9k_pdata.eeprom_data[i] = swab16(ath9k_pdata.eeprom_data[i]);
++
++	if (of_find_property(np, "ath,eep-endian", NULL)) {
 +		ath9k_pdata.endian_check = true;
 +
 +		dev_info(&pdev->dev, "endian check enabled.\n");
 +	}
 +
-+	if (of_find_property(np, "ath,eep-csum", NULL)) {
-+		sum = ath9k_pdata.eeprom_data[0x200>>1];
-+		el = sum / sizeof(u16) - 2;  /* skip length and (old) checksum */
-+		eepdata = (u16 *) (&ath9k_pdata.eeprom_data[0x204>>1]); /* after checksum */
-+		for (i = 0; i < el; i++)
-+			sum ^= *eepdata++;
-+		sum ^= 0xffff;
-+		ath9k_pdata.eeprom_data[0x202>>1] = sum;
-+
-+		dev_info(&pdev->dev, "checksum fixed.\n");
-+	}
-+
 +	if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
-+		memcpy_fromio(athxk_eeprom_mac, (void*) ath9k_pdata.eeprom_data, 6);
++		memcpy_fromio(athxk_eeprom_mac, (void*) ath9k_pdata.eeprom_data + mac_offset, 6);
 +	} else if (mac_res) {
 +		if (resource_size(mac_res) != 6) {
 +			dev_err(&pdev->dev, "mac has an invalid size\n");
@@ -201,20 +191,20 @@ Subject: [PATCH 37/40] owrt: lantiq: wifi and ethernet eeprom handling
 +		dev_err(&pdev->dev, "failed to load eeprom address\n");
 +		return -ENODEV;
 +	}
-+	if (resource_size(eep_res) != ATH5K_PLAT_EEP_MAX_WORDS) {
++	if (resource_size(eep_res) != ATH5K_PLAT_EEP_MAX_WORDS << 1) {
 +		dev_err(&pdev->dev, "eeprom has an invalid size\n");
 +		return -EINVAL;
 +	}
 +
 +	eep = ioremap(eep_res->start, resource_size(eep_res));
-+	memcpy_fromio(ath5k_eeprom_data, eep, ATH5K_PLAT_EEP_MAX_WORDS);
++	memcpy_fromio(ath5k_pdata.eeprom_data, eep, ATH5K_PLAT_EEP_MAX_WORDS << 1);
 +
 +	if (of_find_property(np, "ath,eep-swap", NULL))
-+		for (i = 0; i < (ATH5K_PLAT_EEP_MAX_WORDS >> 1); i++)
-+				ath5k_eeprom_data[i] = swab16(ath5k_eeprom_data[i]);
++		for (i = 0; i < ATH5K_PLAT_EEP_MAX_WORDS; i++)
++			ath5k_pdata.eeprom_data[i] = swab16(ath5k_pdata.eeprom_data[i]);
 +
 +	if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
-+		memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_eeprom_data, 6);
++		memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_pdata.eeprom_data + mac_offset, 6);
 +	} else if (mac_res) {
 +		if (resource_size(mac_res) != 6) {
 +			dev_err(&pdev->dev, "mac has an invalid size\n");
@@ -230,7 +220,6 @@ Subject: [PATCH 37/40] owrt: lantiq: wifi and ethernet eeprom handling
 +	if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
 +		athxk_eeprom_mac[5] += mac_inc;
 +
-+	ath5k_pdata.eeprom_data = ath5k_eeprom_data;
 +	ath5k_pdata.macaddr = athxk_eeprom_mac;
 +	ltq_pci_plat_dev_init = ath5k_pci_plat_dev_init;
 +