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lantiq: fix ath5k EEPROM loading

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With 12fe4b5798 I switched the ath5k
eeprom extraction to an alternate code path. Unfortunately this code
seams to be broken since ages and broke the ath5k EEPROM extraction.

Reported-by: Mohammed Berdai <mohammed.berdai@gmail.com>
Signed-off-by: Mathias Kresin <dev@kresin.me>
Acked-by: John Crispin <john@phrozen.org>
This commit is contained in:
Mathias Kresin 2016-08-23 21:14:36 +02:00
parent 66f3edfd8b
commit 6fdc527793
1 changed files with 28 additions and 10 deletions
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38
target/linux/lantiq/patches-4.4/0035-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch
View file

@ -51,7 +51,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
--- /dev/null
+++ b/arch/mips/lantiq/xway/ath_eep.c
@@ -0,0 +1,281 @@
@@ -0,0 +1,299 @@
+/*
+ * Copyright (C) 2011 Luca Olivetti <luca@ventoso.org>
+ * Copyright (C) 2011 John Crispin <blogic@openwrt.org>
@ -247,6 +247,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ return 0;
+}
+
+static int ath5k_eep_load;
+int __init of_ath5k_eeprom_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node, *mtd_np = NULL;
@ -278,13 +279,19 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ 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);
+ ath5k_pdata.eeprom_data = kmalloc(ATH5K_PLAT_EEP_MAX_WORDS<<1, GFP_KERNEL);
+
+ i = mtd_read(the_mtd, be32_to_cpup(list), ATH5K_PLAT_EEP_MAX_WORDS << 1,
+ &flash_readlen, (void *) ath5k_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(ATH5K_PLAT_EEP_MAX_WORDS << 1) != flash_readlen)
+ || i) {
+ if (((ATH5K_PLAT_EEP_MAX_WORDS<<1) != flash_readlen) || i) {
+ dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
+ return -ENODEV;
+ }
@ -293,11 +300,8 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ 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_pdata.eeprom_data + mac_offset, 6);
+
+ if (!is_valid_ether_addr(athxk_eeprom_mac) && ltq_get_eth_mac())
+ memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
+ ether_addr_copy(athxk_eeprom_mac, ltq_get_eth_mac());
+
+ if (!is_valid_ether_addr(athxk_eeprom_mac)) {
+ dev_warn(&pdev->dev, "using random mac\n");
@ -330,9 +334,23 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+
+static int __init of_ath5k_eeprom_init(void)
+{
+ int ret = platform_driver_probe(&ath5k_eeprom_driver, of_ath5k_eeprom_probe);
+
+ if (ret)
+ ath5k_eep_load = 1;
+
+ return ret;
+}
+
+static int __init of_ath5k_eeprom_init_late(void)
+{
+ if (!ath5k_eep_load)
+ return 0;
+
+ return platform_driver_probe(&ath5k_eeprom_driver, of_ath5k_eeprom_probe);
+}
+device_initcall(of_ath5k_eeprom_init);
+late_initcall(of_ath5k_eeprom_init_late);
+subsys_initcall(of_ath5k_eeprom_init);
--- /dev/null
+++ b/arch/mips/lantiq/xway/eth_mac.c
@@ -0,0 +1,25 @@