lantiq: Add support for linux 4.4

The following patches were dropped because they are already applied
upstream:
- 0038-MIPS-lantiq-fpi-on-ar9.patch
- 0039-MIPS-lantiq-initialize-usb-on-boot.patch
- 0042-USB-DWC2-big-endian-support.patch
- 0043-gpio-stp-xway-fix-phy-mask.patch

All other patches were simply refreshed, except the following:
- 0001-MIPS-lantiq-add-pcie-driver.patch
  Changes to arch/mips/lantiq/xway/sysctrl.c (these changes disabled
  some PMU gates for the vrx200 / VR9 SoCs) were removed since the
  upstream kernel disables unused PMU gates automatically (since
  95135bfa7ead1becc2879230f72583dde2b71a0c
  "MIPS: Lantiq: Deactivate most of the devices by default").
- 0025-NET-MIPS-lantiq-adds-xrx200-net.patch
  Since OpenWrt commit 55ba20afcc2fe785146316e5be2c2473cb329885 drivers
  should use of_get_mac_address(). of_get_mac_address_mtd is not
  available for drivers anymore since it's called automatically within
  of_get_mac_address().
- 0028-NET-lantiq-various-etop-fixes.patch
  Same changes as in 0025-NET-MIPS-lantiq-adds-xrx200-net.patch

While refreshing the kernel configuration SPI support had to be moved to
config-4.4 because otherwise M25P80 was disabled.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

SVN-Revision: 48307

1 files changed, 111 insertions, 0 deletions

diff --git a/target/linux/lantiq/patches-4.4/0007-MIPS-lantiq-add-basic-tffs-driver.patch b/target/linux/lantiq/patches-4.4/0007-MIPS-lantiq-add-basic-tffs-driver.patch
new file mode 100644
index 0000000..7081373
--- /dev/null
+++ b/target/linux/lantiq/patches-4.4/0007-MIPS-lantiq-add-basic-tffs-driver.patch
@@ -0,0 +1,111 @@
+From d27ec8bb97db0f60d81ab255d51ac4e967362067 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Thu, 7 Aug 2014 18:34:19 +0200
+Subject: [PATCH 07/36] MIPS: lantiq: add basic tffs driver
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ arch/mips/lantiq/xway/Makefile |    2 +-
+ arch/mips/lantiq/xway/tffs.c   |   87 ++++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 88 insertions(+), 1 deletion(-)
+ create mode 100644 arch/mips/lantiq/xway/tffs.c
+
+--- a/arch/mips/lantiq/xway/Makefile
++++ b/arch/mips/lantiq/xway/Makefile
+@@ -1,5 +1,5 @@
+ obj-y := prom.o sysctrl.o clk.o reset.o dma.o gptu.o dcdc.o
+ 
+-obj-y += vmmc.o
++obj-y += vmmc.o tffs.o
+ 
+ obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
+--- /dev/null
++++ b/arch/mips/lantiq/xway/tffs.c
+@@ -0,0 +1,87 @@
++#include <linux/module.h>
++#include <linux/mtd/mtd.h>
++#include <linux/errno.h>
++#include <linux/slab.h>
++
++struct tffs_entry {
++    uint16_t id;
++    uint16_t len;
++};
++
++static struct tffs_id {
++	uint32_t id;
++	char *name;
++	unsigned char *val;
++	uint32_t offset;
++	uint32_t len;
++} ids[] = {
++	{ 0x01A9, "annex" },
++	{ 0x0188, "maca" },
++	{ 0x0189, "macb" },
++	{ 0x018a, "macwlan" },
++	{ 0x0195, "macwlan2" },
++	{ 0x018b, "macdsl" },
++	{ 0x01C2, "webgui_pass" },
++	{ 0x01AB, "wlan_key" },
++};
++
++static struct mtd_info *tffs1, *tffs2;
++
++static struct tffs_id* tffs_find_id(int id)
++{
++	int i;
++
++	for (i = 0; i < ARRAY_SIZE(ids); i++)
++		if (id == ids[i].id)
++			return &ids[i];
++
++	return NULL;
++}
++
++static void tffs_index(void)
++{
++	struct tffs_entry *E = NULL;
++	struct tffs_entry entry;
++	int ret, retlen;
++
++	while ((unsigned int) E + sizeof(struct tffs_entry) < tffs2->size) {
++		struct tffs_id *id;
++		int len;
++
++		ret = mtd_read(tffs2, (unsigned int) E, sizeof(struct tffs_entry), &retlen, (unsigned char *)&entry);
++		if (ret)
++			return;
++
++		if (entry.id == 0xffff)
++			return;
++
++		id = tffs_find_id(entry.id);
++		if (id) {
++			id->offset = (uint32_t) E;
++			id->len = entry.len;
++			id->val = kzalloc(entry.len + 1, GFP_KERNEL);
++			mtd_read(tffs2, ((unsigned int) E) + sizeof(struct tffs_entry), entry.len, &retlen, id->val);
++
++		}
++		//printk(KERN_INFO "found entry at 0x%08X-> [<0x%x> %u bytes]\n", (uint32_t) E, entry.id, entry.len);
++		if (id && id->name)
++			printk(KERN_INFO "found entry name -> %s=%s\n", id->name, id->val);
++
++		len = (entry.len + 3) & ~0x03;
++		E = (struct tffs_entry *)(((unsigned int)E) + sizeof(struct tffs_entry) + len);
++	}
++}
++
++static int __init tffs_init(void)
++{
++	tffs1 = get_mtd_device_nm("tffs (1)");
++	tffs2 = get_mtd_device_nm("tffs (2)");
++	if (IS_ERR(tffs1) || IS_ERR(tffs2))
++		return -1;
++
++	tffs_index();
++
++	return 0;
++}
++late_initcall(tffs_init);
++