openwrtv4/target/linux/lantiq/patches-4.4/0007-MIPS-lantiq-add-basic-tffs-driver.patch
Felix Fietkau f577cb25c0 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
2016-01-18 11:40:19 +00:00

111 lines
2.6 KiB
Diff

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);
+