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| author | Gabor Juhos <juhosg@openwrt.org> | 2010-01-17 14:33:29 +0000 |
|---|---|---|
| committer | Gabor Juhos <juhosg@openwrt.org> | 2010-01-17 14:33:29 +0000 |
| commit | f9f827eac2dcd3506d46d6c752df38e5137256a2 (patch) | |
| tree | b381314af8e9e4ba610d340cb4e88473628c3a65 /target | |
| parent | 3789aa82ac3294c3d00fae53d1bcee05a5e8d9e2 (diff) | |
| download | upstream-f9f827eac2dcd3506d46d6c752df38e5137256a2.tar.gz upstream-f9f827eac2dcd3506d46d6c752df38e5137256a2.tar.bz2 upstream-f9f827eac2dcd3506d46d6c752df38e5137256a2.zip | |
ar71xx: add optimizations to the cfi cmdset 002 status checking
SVN-Revision: 19186
Diffstat (limited to 'target')
| -rw-r--r-- | target/linux/ar71xx/patches-2.6.30/108-mtd_fix_cfi_cmdset_0002_status_check.patch | 48 |
1 files changed, 40 insertions, 8 deletions
diff --git a/target/linux/ar71xx/patches-2.6.30/108-mtd_fix_cfi_cmdset_0002_status_check.patch b/target/linux/ar71xx/patches-2.6.30/108-mtd_fix_cfi_cmdset_0002_status_check.patch index 6c49fd4ea3..d3e8b79568 100644 --- a/target/linux/ar71xx/patches-2.6.30/108-mtd_fix_cfi_cmdset_0002_status_check.patch +++ b/target/linux/ar71xx/patches-2.6.30/108-mtd_fix_cfi_cmdset_0002_status_check.patch @@ -25,16 +25,27 @@ /* Atmel chips don't use the same PRI format as AMD chips */ static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param) -@@ -1152,7 +1154,7 @@ static int __xipram do_write_oneword(str +@@ -1152,8 +1154,8 @@ static int __xipram do_write_oneword(str break; } - if (chip_ready(map, adr)) +- break; + if (chip_good(map, adr, datum)) - break; ++ goto enable_xip; /* Latency issues. Drop the lock, wait a while and retry */ -@@ -1436,6 +1438,7 @@ static int __xipram do_write_buffer(stru + UDELAY(map, chip, adr, 1); +@@ -1169,6 +1171,8 @@ static int __xipram do_write_oneword(str + + ret = -EIO; + } ++ ++ enable_xip: + xip_enable(map, chip, adr); + op_done: + chip->state = FL_READY; +@@ -1436,6 +1440,7 @@ static int __xipram do_write_buffer(stru } @@ -42,7 +53,7 @@ static int cfi_amdstd_write_buffers(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf) { -@@ -1514,7 +1517,7 @@ static int cfi_amdstd_write_buffers(stru +@@ -1514,7 +1519,7 @@ static int cfi_amdstd_write_buffers(stru return 0; } @@ -51,21 +62,42 @@ /* * Handle devices with one erase region, that only implement -@@ -1579,7 +1582,7 @@ static int __xipram do_erase_chip(struct +@@ -1579,8 +1584,8 @@ 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))) - break; ++ goto op_done; if (time_after(jiffies, timeo)) { -@@ -1667,7 +1670,7 @@ static int __xipram do_erase_oneblock(st + printk(KERN_WARNING "MTD %s(): software timeout\n", +@@ -1600,6 +1605,7 @@ static int __xipram do_erase_chip(struct + ret = -EIO; + } + ++ op_done: + chip->state = FL_READY; + xip_enable(map, chip, adr); + put_chip(map, chip, adr); +@@ -1667,9 +1673,9 @@ 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; +- break; ++ goto op_done; } + + if (time_after(jiffies, timeo)) { +@@ -1691,6 +1697,7 @@ static int __xipram do_erase_oneblock(st + ret = -EIO; + } + ++ op_done: + chip->state = FL_READY; + put_chip(map, chip, adr); + spin_unlock(chip->mutex); |