diff options
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00/602-03-wifi-rt2x00-Add-support-for-loading-EEPROM-from-MTD.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/rt2x00/602-03-wifi-rt2x00-Add-support-for-loading-EEPROM-from-MTD.patch | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/602-03-wifi-rt2x00-Add-support-for-loading-EEPROM-from-MTD.patch b/package/kernel/mac80211/patches/rt2x00/602-03-wifi-rt2x00-Add-support-for-loading-EEPROM-from-MTD.patch new file mode 100644 index 00000000000..fab4bf39c05 --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/602-03-wifi-rt2x00-Add-support-for-loading-EEPROM-from-MTD.patch @@ -0,0 +1,111 @@ +From 71261ca81b491a4c3b08690347c12e96a75ad0d0 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Sun, 17 Mar 2013 00:55:04 +0100 +Subject: [PATCH 3/5] wifi: rt2x00: Add support for loading EEPROM from MTD + +Add support for loading EEPROM from MTD. + +Signed-off-by: John Crispin <blogic@openwrt.org> +Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> +--- + drivers/net/wireless/ralink/rt2x00/Kconfig | 1 + + .../net/wireless/ralink/rt2x00/rt2x00eeprom.c | 66 +++++++++++++++++++ + 2 files changed, 67 insertions(+) + +--- a/drivers/net/wireless/ralink/rt2x00/Kconfig ++++ b/drivers/net/wireless/ralink/rt2x00/Kconfig +@@ -220,6 +220,7 @@ config RT2800SOC + select RT2X00_LIB_EEPROM + select RT2800_LIB + select RT2800_LIB_MMIO ++ select MTD if SOC_RT288X || SOC_RT305X + help + This adds support for Ralink WiSoC devices. + Supported chips: RT2880, RT3050, RT3052, RT3350, RT3352. +--- a/drivers/net/wireless/ralink/rt2x00/rt2x00eeprom.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00eeprom.c +@@ -10,11 +10,69 @@ + + #include <linux/kernel.h> + #include <linux/module.h> ++#if IS_ENABLED(CONFIG_MTD) ++#include <linux/mtd/mtd.h> ++#include <linux/mtd/partitions.h> ++#endif + #include <linux/of.h> + + #include "rt2x00.h" + #include "rt2x00soc.h" + ++#if IS_ENABLED(CONFIG_MTD) ++static int rt2800lib_read_eeprom_mtd(struct rt2x00_dev *rt2x00dev) ++{ ++ int ret = -EINVAL; ++#ifdef CONFIG_OF ++ struct device_node *np = rt2x00dev->dev->of_node, *mtd_np = NULL; ++ int size, offset = 0; ++ struct mtd_info *mtd; ++ const char *part; ++ const __be32 *list; ++ phandle phandle; ++ size_t retlen; ++ ++ list = of_get_property(np, "ralink,mtd-eeprom", &size); ++ if (!list) ++ return -ENOENT; ++ ++ phandle = be32_to_cpup(list++); ++ if (phandle) ++ mtd_np = of_find_node_by_phandle(phandle); ++ if (!mtd_np) { ++ dev_err(rt2x00dev->dev, "failed to load mtd phandle\n"); ++ return -EINVAL; ++ } ++ ++ part = of_get_property(mtd_np, "label", NULL); ++ if (!part) ++ part = mtd_np->name; ++ ++ mtd = get_mtd_device_nm(part); ++ if (IS_ERR(mtd)) { ++ dev_err(rt2x00dev->dev, "failed to get mtd device \"%s\"\n", part); ++ return PTR_ERR(mtd); ++ } ++ ++ if (size > sizeof(*list)) ++ offset = be32_to_cpup(list); ++ ++ ret = mtd_read(mtd, offset, rt2x00dev->ops->eeprom_size, ++ &retlen, (u_char *)rt2x00dev->eeprom); ++ put_mtd_device(mtd); ++ ++ if (retlen != rt2x00dev->ops->eeprom_size || ret) { ++ dev_err(rt2x00dev->dev, "failed to load eeprom from device \"%s\"\n", part); ++ return ret; ++ } ++ ++ dev_info(rt2x00dev->dev, "loaded eeprom from mtd device \"%s\"\n", part); ++#endif ++ ++ return ret; ++} ++#endif ++ + static const char * + rt2x00lib_get_eeprom_file_name(struct rt2x00_dev *rt2x00dev) + { +@@ -83,6 +141,14 @@ err_exit: + + int rt2x00lib_read_eeprom(struct rt2x00_dev *rt2x00dev) + { ++ int ret; ++ ++#if IS_ENABLED(CONFIG_MTD) ++ ret = rt2800lib_read_eeprom_mtd(rt2x00dev); ++ if (!ret) ++ return 0; ++#endif ++ + return rt2x00lib_read_eeprom_file(rt2x00dev); + } + EXPORT_SYMBOL_GPL(rt2x00lib_read_eeprom); |