[source] mac80211: rt2x00: add mtd-eeprom swab function

[LEDE Commits]

blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/4f7a0601e665b863a5e4157de33b3d78b6393d3c

commit 4f7a0601e665b863a5e4157de33b3d78b6393d3c
Author: Mathias Kresin <dev at kresin.me>
AuthorDate: Fri Nov 4 07:43:40 2016 +0100

    mac80211: rt2x00: add mtd-eeprom swab function
    
    Most of the lantiq devices with ralink wifi have the EEPROM stored
    in big endian byte order in flash, but the driver expects the EEPROM to
    be in little endian.
    
    Signed-off-by: Mathias Kresin <dev at kresin.me>
---
 ...x00-load-eeprom-on-SoC-from-a-mtd-device-defines-.patch | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/package/kernel/mac80211/patches/605-rt2x00-load-eeprom-on-SoC-from-a-mtd-device-defines-.patch b/package/kernel/mac80211/patches/605-rt2x00-load-eeprom-on-SoC-from-a-mtd-device-defines-.patch
index 6c264ef..a98b49c 100644
--- a/package/kernel/mac80211/patches/605-rt2x00-load-eeprom-on-SoC-from-a-mtd-device-defines-.patch
+++ b/package/kernel/mac80211/patches/605-rt2x00-load-eeprom-on-SoC-from-a-mtd-device-defines-.patch
@@ -7,8 +7,8 @@ Subject: [PATCH] rt2x00: load eeprom on SoC from a mtd device defines inside
 Signed-off-by: John Crispin <blogic at openwrt.org>
 ---
  drivers/net/wireless/ralink/rt2x00/Kconfig        |  1 +
- drivers/net/wireless/ralink/rt2x00/rt2x00eeprom.c | 61 +++++++++++++++++++++++
- 2 files changed, 62 insertions(+)
+ drivers/net/wireless/ralink/rt2x00/rt2x00eeprom.c | 65 +++++++++++++++++++++++
+ 2 files changed, 66 insertions(+)
 
 --- a/drivers/net/wireless/ralink/rt2x00/Kconfig
 +++ b/drivers/net/wireless/ralink/rt2x00/Kconfig
@@ -22,7 +22,7 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
  	  Supported chips: RT2880, RT3050, RT3052, RT3350, RT3352.
 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00eeprom.c
 +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00eeprom.c
-@@ -26,11 +26,69 @@
+@@ -26,11 +26,73 @@
  
  #include <linux/kernel.h>
  #include <linux/module.h>
@@ -40,7 +40,7 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
 +	static struct firmware mtd_fw;
 +	struct device_node *np = rt2x00dev->dev->of_node, *mtd_np = NULL;
 +	size_t retlen, len = rt2x00dev->ops->eeprom_size;
-+	int size, offset = 0;
++	int i, size, offset = 0;
 +	struct mtd_info *mtd;
 +	const char *part;
 +	const __be32 *list;
@@ -79,6 +79,10 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
 +		return ret;
 +	}
 +
++	if (of_find_property(np, "ralink,mtd-eeprom-swap", NULL))
++		for (i = 0; i < len/sizeof(u16); i++)
++			rt2x00dev->eeprom[i] = swab16(rt2x00dev->eeprom[i]);
++
 +	rt2x00dev->eeprom_file = &mtd_fw;
 +	mtd_fw.size = len;
 +	mtd_fw.data = (const u8 *) rt2x00dev->eeprom;
@@ -92,7 +96,7 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
  static const char *
  rt2x00lib_get_eeprom_file_name(struct rt2x00_dev *rt2x00dev)
  {
-@@ -58,6 +116,9 @@ static int rt2x00lib_request_eeprom_file
+@@ -58,6 +120,9 @@ static int rt2x00lib_request_eeprom_file
  	const char *ee_name;
  	int retval;