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author | Hauke Mehrtens <hauke@hauke-m.de> | 2017-10-03 18:02:59 +0200 |
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committer | Hauke Mehrtens <hauke@hauke-m.de> | 2017-10-11 22:32:39 +0200 |
commit | 7bbf4117c6fe4b764d9d7c62fb2bcf6dd93bff2c (patch) | |
tree | e42a4555f9845f78fb9baf7102da8d3d45adfacc /target/linux/ar71xx/patches-4.9/403-mtd_fix_cfi_cmdset_0002_status_check.patch | |
parent | 2909a4b78e2bce5f6b9c35361866d5e9477a1bdc (diff) | |
download | upstream-7bbf4117c6fe4b764d9d7c62fb2bcf6dd93bff2c.tar.gz upstream-7bbf4117c6fe4b764d9d7c62fb2bcf6dd93bff2c.tar.bz2 upstream-7bbf4117c6fe4b764d9d7c62fb2bcf6dd93bff2c.zip |
ar71xx: Add kernel 4.9 support
This add support for kernel 4.9 to the ar71xx target.
It was compile tested with the generic, NAND and mikrotik subtarget.
Multiple members of the community tested it on their boards and did not
report any major problem so far.
Especially the NAND part received some changes to adapt to the new
kernel APIs. The serial driver hack used for the Arduino Yun was not
ported because the kernel changed there a lot.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Diffstat (limited to 'target/linux/ar71xx/patches-4.9/403-mtd_fix_cfi_cmdset_0002_status_check.patch')
-rw-r--r-- | target/linux/ar71xx/patches-4.9/403-mtd_fix_cfi_cmdset_0002_status_check.patch | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-4.9/403-mtd_fix_cfi_cmdset_0002_status_check.patch b/target/linux/ar71xx/patches-4.9/403-mtd_fix_cfi_cmdset_0002_status_check.patch new file mode 100644 index 0000000000..415d835ee3 --- /dev/null +++ b/target/linux/ar71xx/patches-4.9/403-mtd_fix_cfi_cmdset_0002_status_check.patch @@ -0,0 +1,69 @@ +--- a/drivers/mtd/chips/cfi_cmdset_0002.c ++++ b/drivers/mtd/chips/cfi_cmdset_0002.c +@@ -1630,8 +1630,8 @@ static int __xipram do_write_oneword(str + break; + } + +- if (chip_ready(map, adr)) +- break; ++ if (chip_good(map, adr, datum)) ++ goto enable_xip; + + /* Latency issues. Drop the lock, wait a while and retry */ + UDELAY(map, chip, adr, 1); +@@ -1647,6 +1647,8 @@ static int __xipram do_write_oneword(str + + ret = -EIO; + } ++ ++ enable_xip: + xip_enable(map, chip, adr); + op_done: + if (mode == FL_OTP_WRITE) +@@ -2225,7 +2227,6 @@ static int cfi_amdstd_panic_write(struct + return 0; + } + +- + /* + * Handle devices with one erase region, that only implement + * the chip erase command. +@@ -2289,8 +2290,8 @@ static int __xipram do_erase_chip(struct + chip->erase_suspended = 0; + } + +- if (chip_ready(map, adr)) +- break; ++ if (chip_good(map, adr, map_word_ff(map))) ++ goto op_done; + + if (time_after(jiffies, timeo)) { + printk(KERN_WARNING "MTD %s(): software timeout\n", +@@ -2310,6 +2311,7 @@ static int __xipram do_erase_chip(struct + ret = -EIO; + } + ++ op_done: + chip->state = FL_READY; + xip_enable(map, chip, adr); + DISABLE_VPP(map); +@@ -2378,9 +2380,9 @@ static int __xipram do_erase_oneblock(st + chip->erase_suspended = 0; + } + +- if (chip_ready(map, adr)) { ++ if (chip_good(map, adr, map_word_ff(map))) { + xip_enable(map, chip, adr); +- break; ++ goto op_done; + } + + if (time_after(jiffies, timeo)) { +@@ -2402,6 +2404,7 @@ static int __xipram do_erase_oneblock(st + ret = -EIO; + } + ++ op_done: + chip->state = FL_READY; + DISABLE_VPP(map); + put_chip(map, chip, adr); |