target/linux/bcm53xx/patches-4.1/901-mtd-bcm47xxpart-workaround-for-Asus-RT-AC87U-asus-pa.patch

   1 From 21500872c1dba33848ddcf6bea97d58772675d36 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
   3 Date: Sun, 17 May 2015 14:00:52 +0200
   4 Subject: [PATCH] mtd: bcm47xxpart: workaround for Asus RT-AC87U "asus"
   5  partition
   6 MIME-Version: 1.0
   7 Content-Type: text/plain; charset=UTF-8
   8 Content-Transfer-Encoding: 8bit
   9
  10 Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
  11 ---
  12  drivers/mtd/bcm47xxpart.c | 12 ++++++++++++
  13  1 file changed, 12 insertions(+)
  14
  15 --- a/drivers/mtd/bcm47xxpart.c
  16 +++ b/drivers/mtd/bcm47xxpart.c
  17 @@ -14,6 +14,7 @@
  18  #include <linux/slab.h>
  19  #include <linux/mtd/mtd.h>
  20  #include <linux/mtd/partitions.h>
  21 +#include <linux/of.h>
  22
  23  #include <uapi/linux/magic.h>
  24
  25 @@ -132,6 +133,17 @@ static int bcm47xxpart_parse(struct mtd_
  26                         break;
  27                 }
  28
  29 +               /*
  30 +                * Ugly workaround for Asus RT-AC87U and its "asus" partition.
  31 +                * It uses JFFS2 which we don't (want to) detect. We should
  32 +                * probably use DT to define partitions but we need a working
  33 +                * TRX firmware splitter first.
  34 +                */
  35 +               if (of_machine_is_compatible("asus,rt-ac87u") && offset == 0x7ec0000) {
  36 +                       bcm47xxpart_add_part(&parts[curr_part++], "asus", offset, MTD_WRITEABLE);
  37 +                       continue;
  38 +               }
  39 +
  40                 /* Read beginning of the block */
  41                 err = mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ,
  42                                &bytes_read, (uint8_t *)buf);