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lantiq: drop orphaned eeprom-handling code branches

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All device tree nodes are using the named properties now and the code
path handling the reg property isn't required any more.

The code related to the ath,eep-flash property has been reformatted to
be better readable.

Signed-off-by: Mathias Kresin <dev@kresin.me>
This commit is contained in:
Mathias Kresin 2016-08-02 22:25:59 +02:00 committed by John Crispin
parent 12fe4b5798
commit a7cce111db
1 changed files with 67 additions and 93 deletions
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160
target/linux/lantiq/patches-4.4/0035-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch
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@ -51,7 +51,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
--- /dev/null --- /dev/null
+++ b/arch/mips/lantiq/xway/ath_eep.c +++ b/arch/mips/lantiq/xway/ath_eep.c
@@ -0,0 +1,307 @@ @@ -0,0 +1,281 @@
+/* +/*
+ * Copyright (C) 2011 Luca Olivetti <luca@ventoso.org> + * Copyright (C) 2011 Luca Olivetti <luca@ventoso.org>
+ * Copyright (C) 2011 John Crispin <blogic@openwrt.org> + * Copyright (C) 2011 John Crispin <blogic@openwrt.org>
@ -93,9 +93,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+static int ath9k_eep_load; +static int ath9k_eep_load;
+int __init of_ath9k_eeprom_probe(struct platform_device *pdev) +int __init of_ath9k_eeprom_probe(struct platform_device *pdev)
+{ +{
+ struct device_node *np = pdev->dev.of_node, *mtd_np; + struct device_node *np = pdev->dev.of_node, *mtd_np = NULL;
+ struct resource *eep_res, *mac_res = NULL;
+ void __iomem *eep, *mac;
+ int mac_offset, led_pin; + int mac_offset, led_pin;
+ u32 mac_inc = 0, pci_slot = 0; + u32 mac_inc = 0, pci_slot = 0;
+ int i; + int i;
@ -106,41 +104,38 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ phandle phandle; + phandle phandle;
+ u16 dev_ids[2] = { 0 }; + u16 dev_ids[2] = { 0 };
+ +
+ if ((list = of_get_property(np, "ath,eep-flash", &i)) && i == 2 * + list = of_get_property(np, "ath,eep-flash", &i);
+ sizeof(*list) && (phandle = be32_to_cpup(list++)) && + if (!list || (i != (2 * sizeof(*list))))
+ (mtd_np = of_find_node_by_phandle(phandle)) && ((part = + return -ENODEV;
+ 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);
+ if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
+ size_t mac_readlen;
+ mtd_read(the_mtd, mac_offset, 6, &mac_readlen,
+ (void *) athxk_eeprom_mac);
+ }
+ 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) { + phandle = be32_to_cpup(list++);
+ dev_err(&pdev->dev, "failed to load eeprom address\n"); + if (phandle)
+ return -ENODEV; + mtd_np = of_find_node_by_phandle(phandle);
+ }
+ 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)); + if (!mtd_np)
+ memcpy_fromio(ath9k_pdata.eeprom_data, eep, + return -ENODEV;
+ ATH9K_PLAT_EEP_MAX_WORDS << 1); +
+ part = of_get_property(mtd_np, "label", NULL);
+ if (!part)
+ part = mtd_np->name;
+
+ the_mtd = get_mtd_device_nm(part);
+ if (IS_ERR(the_mtd))
+ return -ENODEV;
+
+ i = mtd_read(the_mtd, be32_to_cpup(list), ATH9K_PLAT_EEP_MAX_WORDS << 1,
+ &flash_readlen, (void *) ath9k_pdata.eeprom_data);
+
+ if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
+ size_t mac_readlen;
+ mtd_read(the_mtd, mac_offset, 6, &mac_readlen,
+ (void *) athxk_eeprom_mac);
+ }
+ 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;
+ } + }
+ +
+ if (of_find_property(np, "ath,eep-swap", NULL)) + if (of_find_property(np, "ath,eep-swap", NULL))
@ -153,18 +148,9 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ dev_info(&pdev->dev, "endian check enabled.\n"); + dev_info(&pdev->dev, "endian check enabled.\n");
+ } + }
+ +
+ if (!is_valid_ether_addr(athxk_eeprom_mac)) { + if (!is_valid_ether_addr(athxk_eeprom_mac) && ltq_get_eth_mac())
+ if (mac_res) { + memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
+ if (resource_size(mac_res) != 6) { +
+ dev_err(&pdev->dev, "mac has an invalid size\n");
+ return -EINVAL;
+ }
+ mac = ioremap(mac_res->start, resource_size(mac_res));
+ memcpy_fromio(athxk_eeprom_mac, mac, 6);
+ } else if (ltq_get_eth_mac()) {
+ memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
+ }
+ }
+ if (!is_valid_ether_addr(athxk_eeprom_mac)) { + if (!is_valid_ether_addr(athxk_eeprom_mac)) {
+ dev_warn(&pdev->dev, "using random mac\n"); + dev_warn(&pdev->dev, "using random mac\n");
+ random_ether_addr(athxk_eeprom_mac); + random_ether_addr(athxk_eeprom_mac);
@ -263,9 +249,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ +
+int __init of_ath5k_eeprom_probe(struct platform_device *pdev) +int __init of_ath5k_eeprom_probe(struct platform_device *pdev)
+{ +{
+ struct device_node *np = pdev->dev.of_node, *mtd_np; + struct device_node *np = pdev->dev.of_node, *mtd_np = NULL;
+ struct resource *eep_res, *mac_res = NULL;
+ void __iomem *eep, *mac;
+ int mac_offset; + int mac_offset;
+ u32 mac_inc = 0; + u32 mac_inc = 0;
+ int i; + int i;
@ -275,57 +259,47 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ const char *part; + const char *part;
+ phandle phandle; + phandle phandle;
+ +
+ if ((list = of_get_property(np, "ath,eep-flash", &i)) && i == 2 * + list = of_get_property(np, "ath,eep-flash", &i);
+ sizeof(*list) && (phandle = be32_to_cpup(list++)) && + if (!list || (i != (2 * sizeof(*list))))
+ (mtd_np = of_find_node_by_phandle(phandle)) && ((part = + return -ENODEV;
+ 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);
+ +
+ if (!eep_res) { + phandle = be32_to_cpup(list++);
+ dev_err(&pdev->dev, "failed to load eeprom address\n"); + if (phandle)
+ return -ENODEV; + mtd_np = of_find_node_by_phandle(phandle);
+ }
+ 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)); + if (!mtd_np)
+ ath5k_pdata.eeprom_data = kmalloc(ATH5K_PLAT_EEP_MAX_WORDS<<1, + return -ENODEV;
+ GFP_KERNEL); +
+ memcpy_fromio(ath5k_pdata.eeprom_data, eep, + part = of_get_property(mtd_np, "label", NULL);
+ ATH5K_PLAT_EEP_MAX_WORDS << 1); + if (!part)
+ part = mtd_np->name;
+
+ the_mtd = get_mtd_device_nm(part);
+ if (IS_ERR(the_mtd))
+ return -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;
+ } + }
+ +
+ if (of_find_property(np, "ath,eep-swap", NULL)) + if (of_find_property(np, "ath,eep-swap", NULL))
+ for (i = 0; i < ATH5K_PLAT_EEP_MAX_WORDS; i++) + for (i = 0; i < ATH5K_PLAT_EEP_MAX_WORDS; i++)
+ ath5k_pdata.eeprom_data[i] = swab16(ath5k_pdata.eeprom_data[i]); + ath5k_pdata.eeprom_data[i] = swab16(ath5k_pdata.eeprom_data[i]);
+ +
+ if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) { + if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset))
+ memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_pdata.eeprom_data + mac_offset, 6); + memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_pdata.eeprom_data + mac_offset, 6);
+ } else if (mac_res) { +
+ if (resource_size(mac_res) != 6) { + if (!is_valid_ether_addr(athxk_eeprom_mac) && ltq_get_eth_mac())
+ dev_err(&pdev->dev, "mac has an invalid size\n");
+ return -EINVAL;
+ }
+ mac = ioremap(mac_res->start, resource_size(mac_res));
+ memcpy_fromio(athxk_eeprom_mac, mac, 6);
+ } else if (ltq_get_eth_mac())
+ memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6); + memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
+ else { +
+ if (!is_valid_ether_addr(athxk_eeprom_mac)) {
+ dev_warn(&pdev->dev, "using random mac\n"); + dev_warn(&pdev->dev, "using random mac\n");
+ random_ether_addr(athxk_eeprom_mac); + random_ether_addr(athxk_eeprom_mac);
+ } + }