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authorJohn Crispin <john@openwrt.org>2013-05-30 16:00:32 +0000
committerJohn Crispin <john@openwrt.org>2013-05-30 16:00:32 +0000
commitd1f3751d057374a715f1702ad4edfe7aa4065b12 (patch)
tree6796b564cecac759a978a76162d75ff49980b10d /target/linux
parent83c3cd4ed95d0bf337eac54cdbc235cb970e9741 (diff)
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lantiq: wifi calibration from MTD
This patch enables retrieving the wifi calibration data from an MTD partition. It requires the previous patch. Signed-off-by: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us> SVN-Revision: 36779
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/lantiq/patches-3.8/0037-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch120
1 files changed, 86 insertions, 34 deletions
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 4aac2bc18c..6d19fdb6f8 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 +1,258 @@
+/*
+ * Copyright (C) 2011 Luca Olivetti <luca@ventoso.org>
+ * Copyright (C) 2011 John Crispin <blogic@openwrt.org>
@@ -69,7 +69,10 @@ Subject: [PATCH 37/40] owrt: lantiq: wifi and ethernet eeprom handling
+#include <linux/ath5k_platform.h>
+#include <linux/ath9k_platform.h>
+#include <linux/pci.h>
++#include <linux/err.h>
++#include <linux/mtd/mtd.h>
+#include <pci-ath-fixup.h>
++#include <lantiq_soc.h>
+
+extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
+struct ath5k_platform_data ath5k_pdata;
@@ -87,33 +90,57 @@ Subject: [PATCH 37/40] owrt: lantiq: wifi and ethernet eeprom handling
+
+int __init of_ath9k_eeprom_probe(struct platform_device *pdev)
+{
-+ struct device_node *np = pdev->dev.of_node;
-+ struct resource *eep_res, *mac_res;
++ struct device_node *np = pdev->dev.of_node, *mtd_np;
++ struct resource *eep_res, *mac_res = NULL;
+ void __iomem *eep, *mac;
+ int mac_offset;
+ u32 mac_inc = 0, pci_slot = 0;
+ int i;
+ u16 *eepdata, sum, el;
++ struct mtd_info *the_mtd;
++ size_t flash_readlen;
++ const __be32 *list;
++ const char *part;
++ phandle phandle;
++
++ if ((list = of_get_property(np, "ath,eep-flash", &i)) && i == 2 *
++ sizeof(*list) && (phandle = be32_to_cpup(list++)) &&
++ (mtd_np = of_find_node_by_phandle(phandle)) && ((part =
++ of_get_property(mtd_np, "label", NULL)) || (part =
++ mtd_np->name)) && (the_mtd = get_mtd_device_nm(part))
++ != ERR_PTR(-ENODEV)) {
++ i = mtd_read(the_mtd, be32_to_cpup(list),
++ sizeof(ath9k_pdata.eeprom_data), &flash_readlen,
++ (void *) ath9k_pdata.eeprom_data);
++ put_mtd_device(the_mtd);
++ if ((sizeof(ath9k_pdata.eeprom_data) != flash_readlen) || i) {
++ dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
++ return -ENODEV;
++ }
++ } else {
++ eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+
-+ eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+ mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
++ if (!eep_res) {
++ dev_err(&pdev->dev, "failed to load eeprom address\n");
++ return -ENODEV;
++ }
++ if (resource_size(eep_res) != ATH9K_PLAT_EEP_MAX_WORDS) {
++ dev_err(&pdev->dev, "eeprom has an invalid size\n");
++ return -EINVAL;
++ }
+
-+ if (!eep_res) {
-+ dev_err(&pdev->dev, "failed to load eeprom address\n");
-+ return -ENODEV;
-+ }
-+ if (resource_size(eep_res) != ATH9K_PLAT_EEP_MAX_WORDS) {
-+ 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);
+ }
+
-+ eep = ioremap(eep_res->start, resource_size(eep_res));
-+ memcpy_fromio(ath9k_pdata.eeprom_data, eep, ATH9K_PLAT_EEP_MAX_WORDS);
-+
+ if (of_find_property(np, "ath,eep-swap", NULL)) {
+ ath9k_pdata.endian_check = true;
-+
+ dev_info(&pdev->dev, "endian check enabled.\n");
++ 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-csum", NULL)) {
@@ -137,7 +164,9 @@ Subject: [PATCH 37/40] owrt: lantiq: wifi and ethernet eeprom handling
+ }
+ mac = ioremap(mac_res->start, resource_size(mac_res));
+ memcpy_fromio(athxk_eeprom_mac, mac, 6);
-+ } else {
++ } else if (ltq_get_eth_mac())
++ memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
++ else {
+ dev_warn(&pdev->dev, "using random mac\n");
+ random_ether_addr(athxk_eeprom_mac);
+ }
@@ -187,31 +216,52 @@ Subject: [PATCH 37/40] owrt: lantiq: wifi and ethernet eeprom handling
+
+int __init of_ath5k_eeprom_probe(struct platform_device *pdev)
+{
-+ struct device_node *np = pdev->dev.of_node;
-+ struct resource *eep_res, *mac_res;
++ struct device_node *np = pdev->dev.of_node, *mtd_np;
++ struct resource *eep_res, *mac_res = NULL;
+ void __iomem *eep, *mac;
+ int mac_offset;
+ u32 mac_inc = 0;
+ int i;
++ struct mtd_info *the_mtd;
++ size_t flash_readlen;
++ const __be32 *list;
++ const char *part;
++ phandle phandle;
++
++ if ((list = of_get_property(np, "ath,eep-flash", &i)) && i == 2 *
++ sizeof(*list) && (phandle = be32_to_cpup(list++)) &&
++ (mtd_np = of_find_node_by_phandle(phandle)) && ((part =
++ of_get_property(mtd_np, "label", NULL)) || (part =
++ mtd_np->name)) && (the_mtd = get_mtd_device_nm(part))
++ != ERR_PTR(-ENODEV)) {
++ i = mtd_read(the_mtd, be32_to_cpup(list),
++ sizeof(ath5k_eeprom_data), &flash_readlen,
++ (void *) ath5k_eeprom_data);
++ put_mtd_device(the_mtd);
++ if ((sizeof(ath5k_eeprom_data) != flash_readlen) || i) {
++ dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
++ return -ENODEV;
++ }
++ } else {
++ eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+
-+ eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+ mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
++ if (!eep_res) {
++ dev_err(&pdev->dev, "failed to load eeprom address\n");
++ return -ENODEV;
++ }
++ if (resource_size(eep_res) != ATH5K_PLAT_EEP_MAX_WORDS) {
++ dev_err(&pdev->dev, "eeprom has an invalid size\n");
++ return -EINVAL;
++ }
+
-+ if (!eep_res) {
-+ dev_err(&pdev->dev, "failed to load eeprom address\n");
-+ return -ENODEV;
-+ }
-+ if (resource_size(eep_res) != ATH5K_PLAT_EEP_MAX_WORDS) {
-+ 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);
+ }
+
-+ eep = ioremap(eep_res->start, resource_size(eep_res));
-+ memcpy_fromio(ath5k_eeprom_data, eep, ATH5K_PLAT_EEP_MAX_WORDS);
-+
+ 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_eeprom_data[i] = swab16(ath5k_eeprom_data[i]);
+
+ if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
+ memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_eeprom_data, 6);
@@ -222,7 +272,9 @@ Subject: [PATCH 37/40] owrt: lantiq: wifi and ethernet eeprom handling
+ }
+ mac = ioremap(mac_res->start, resource_size(mac_res));
+ memcpy_fromio(athxk_eeprom_mac, mac, 6);
-+ } else {
++ } else if (ltq_get_eth_mac())
++ memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
++ else {
+ dev_warn(&pdev->dev, "using random mac\n");
+ random_ether_addr(athxk_eeprom_mac);
+ }