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lantiq: wifi calibration from MTD

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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
This commit is contained in:
John Crispin 2013-05-30 16:00:32 +00:00
parent 83c3cd4ed9
commit d1f3751d05
1 changed files with 86 additions and 34 deletions
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120
target/linux/lantiq/patches-3.8/0037-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch
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@ -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;
+
+ eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ 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);
+
+ if (!eep_res) {
+ dev_err(&pdev->dev, "failed to load eeprom address\n");
+ return -ENODEV;
+ 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);
+ }
+ 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);
+
+ 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;
+
+ eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ 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);
+
+ if (!eep_res) {
+ dev_err(&pdev->dev, "failed to load eeprom address\n");
+ return -ENODEV;
+ 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);
+ }
+ 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);
+
+ 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);
+ }