From bfc700722637bd49700b1cd369acf3a60dfd4cc1 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Sat, 29 Jun 2013 16:33:46 +0000 Subject: [PATCH] lantiq: Add support for loading athxk eeproms through mtd MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This patch enables retrieving the wifi calibration data from an MTD partition. Try to copy mac address from ethernet before generating a random one. This fixes DGN3500 ath9k support. Signed-off-by: Daniel Gimpelevich Signed-off-by: Álvaro Fernández Rojas SVN-Revision: 37087 --- target/linux/lantiq/dts/DGN3500.dtsi | 1 + ...iq-wifi-and-ethernet-eeprom-handling.patch | 115 +++++++++++++----- 2 files changed, 85 insertions(+), 31 deletions(-) diff --git a/target/linux/lantiq/dts/DGN3500.dtsi b/target/linux/lantiq/dts/DGN3500.dtsi index b2fb269ce8..9233b108f5 100644 --- a/target/linux/lantiq/dts/DGN3500.dtsi +++ b/target/linux/lantiq/dts/DGN3500.dtsi @@ -116,6 +116,7 @@ compatible = "ath9k,eeprom"; ath,eep-flash = <&ath9k_cal 0xf000>; ath,pci-slot = <14>; + ath,eep-endian; ath,eep-swap; }; 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 3d64c789bb..e98a4c08ae 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 @@ -50,12 +50,13 @@ 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 +1,195 @@ +@@ -0,0 +1,248 @@ +/* + * Copyright (C) 2011 Luca Olivetti + * Copyright (C) 2011 John Crispin + * Copyright (C) 2011 Andrej Vlašić + * Copyright (C) 2013 Álvaro Fernández Rojas ++ * Copyright (C) 2013 Daniel Gimpelevich + * + * 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 @@ -69,7 +70,10 @@ Subject: [PATCH 37/40] owrt: lantiq: wifi and ethernet eeprom handling +#include +#include +#include ++#include ++#include +#include ++#include + +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev); +struct ath5k_platform_data ath5k_pdata; @@ -86,28 +90,50 @@ 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; ++ 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), ++ ATH9K_PLAT_EEP_MAX_WORDS << 1, &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 << 1) { ++ 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 << 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 << 1); + } + -+ eep = ioremap(eep_res->start, resource_size(eep_res)); -+ memcpy_fromio(ath9k_pdata.eeprom_data, eep, ATH9K_PLAT_EEP_MAX_WORDS << 1); -+ + 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]); @@ -127,7 +153,9 @@ 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); + } @@ -177,28 +205,51 @@ 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), ++ ATH5K_PLAT_EEP_MAX_WORDS << 1, &flash_readlen, ++ (void *) ath5k_pdata.eeprom_data); ++ put_mtd_device(the_mtd); ++ if ((sizeof(ATH5K_PLAT_EEP_MAX_WORDS << 1) != 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 << 1) { ++ 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 << 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_pdata.eeprom_data, eep, ++ ATH5K_PLAT_EEP_MAX_WORDS << 1); + } + -+ eep = ioremap(eep_res->start, resource_size(eep_res)); -+ 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; i++) + ath5k_pdata.eeprom_data[i] = swab16(ath5k_pdata.eeprom_data[i]); @@ -212,7 +263,9 @@ 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); + } -- 2.25.1