diff options
Diffstat (limited to 'target/linux/generic-2.6/patches-2.6.22/009-revert_intel_flash_breakage.patch')
| -rw-r--r-- | target/linux/generic-2.6/patches-2.6.22/009-revert_intel_flash_breakage.patch | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.22/009-revert_intel_flash_breakage.patch b/target/linux/generic-2.6/patches-2.6.22/009-revert_intel_flash_breakage.patch deleted file mode 100644 index 51b84a745..000000000 --- a/target/linux/generic-2.6/patches-2.6.22/009-revert_intel_flash_breakage.patch +++ /dev/null @@ -1,169 +0,0 @@ ---- a/drivers/mtd/chips/cfi_cmdset_0001.c -+++ b/drivers/mtd/chips/cfi_cmdset_0001.c -@@ -933,7 +933,7 @@ - - static int __xipram xip_wait_for_operation( - struct map_info *map, struct flchip *chip, -- unsigned long adr, unsigned int chip_op_time ) -+ unsigned long adr, int *chip_op_time ) - { - struct cfi_private *cfi = map->fldrv_priv; - struct cfi_pri_intelext *cfip = cfi->cmdset_priv; -@@ -942,7 +942,7 @@ - flstate_t oldstate, newstate; - - start = xip_currtime(); -- usec = chip_op_time * 8; -+ usec = *chip_op_time * 8; - if (usec == 0) - usec = 500000; - done = 0; -@@ -1052,8 +1052,8 @@ - #define XIP_INVAL_CACHED_RANGE(map, from, size) \ - INVALIDATE_CACHED_RANGE(map, from, size) - --#define INVAL_CACHE_AND_WAIT(map, chip, cmd_adr, inval_adr, inval_len, usec) \ -- xip_wait_for_operation(map, chip, cmd_adr, usec) -+#define INVAL_CACHE_AND_WAIT(map, chip, cmd_adr, inval_adr, inval_len, p_usec) \ -+ xip_wait_for_operation(map, chip, cmd_adr, p_usec) - - #else - -@@ -1065,65 +1065,65 @@ - static int inval_cache_and_wait_for_operation( - struct map_info *map, struct flchip *chip, - unsigned long cmd_adr, unsigned long inval_adr, int inval_len, -- unsigned int chip_op_time) -+ int *chip_op_time ) - { - struct cfi_private *cfi = map->fldrv_priv; - map_word status, status_OK = CMD(0x80); -- int chip_state = chip->state; -- unsigned int timeo, sleep_time; -+ int z, chip_state = chip->state; -+ unsigned long timeo; - - spin_unlock(chip->mutex); - if (inval_len) - INVALIDATE_CACHED_RANGE(map, inval_adr, inval_len); -+ if (*chip_op_time) -+ cfi_udelay(*chip_op_time); - spin_lock(chip->mutex); - -- /* set our timeout to 8 times the expected delay */ -- timeo = chip_op_time * 8; -- if (!timeo) -- timeo = 500000; -- sleep_time = chip_op_time / 2; -+ timeo = *chip_op_time * 8 * HZ / 1000000; -+ if (timeo < HZ/2) -+ timeo = HZ/2; -+ timeo += jiffies; - -+ z = 0; - for (;;) { -+ if (chip->state != chip_state) { -+ /* Someone's suspended the operation: sleep */ -+ DECLARE_WAITQUEUE(wait, current); -+ -+ set_current_state(TASK_UNINTERRUPTIBLE); -+ add_wait_queue(&chip->wq, &wait); -+ spin_unlock(chip->mutex); -+ schedule(); -+ remove_wait_queue(&chip->wq, &wait); -+ timeo = jiffies + (HZ / 2); /* FIXME */ -+ spin_lock(chip->mutex); -+ continue; -+ } -+ - status = map_read(map, cmd_adr); - if (map_word_andequal(map, status, status_OK, status_OK)) - break; - -- if (!timeo) { -+ /* OK Still waiting */ -+ if (time_after(jiffies, timeo)) { - map_write(map, CMD(0x70), cmd_adr); - chip->state = FL_STATUS; - return -ETIME; - } - -- /* OK Still waiting. Drop the lock, wait a while and retry. */ -+ /* Latency issues. Drop the lock, wait a while and retry */ -+ z++; - spin_unlock(chip->mutex); -- if (sleep_time >= 1000000/HZ) { -- /* -- * Half of the normal delay still remaining -- * can be performed with a sleeping delay instead -- * of busy waiting. -- */ -- msleep(sleep_time/1000); -- timeo -= sleep_time; -- sleep_time = 1000000/HZ; -- } else { -- udelay(1); -- cond_resched(); -- timeo--; -- } -+ cfi_udelay(1); - spin_lock(chip->mutex); -- -- while (chip->state != chip_state) { -- /* Someone's suspended the operation: sleep */ -- DECLARE_WAITQUEUE(wait, current); -- set_current_state(TASK_UNINTERRUPTIBLE); -- add_wait_queue(&chip->wq, &wait); -- spin_unlock(chip->mutex); -- schedule(); -- remove_wait_queue(&chip->wq, &wait); -- spin_lock(chip->mutex); -- } - } - -+ if (!z) { -+ if (!--(*chip_op_time)) -+ *chip_op_time = 1; -+ } else if (z > 1) -+ ++(*chip_op_time); -+ - /* Done and happy. */ - chip->state = FL_STATUS; - return 0; -@@ -1132,7 +1132,8 @@ - #endif - - #define WAIT_TIMEOUT(map, chip, adr, udelay) \ -- INVAL_CACHE_AND_WAIT(map, chip, adr, 0, 0, udelay); -+ ({ int __udelay = (udelay); \ -+ INVAL_CACHE_AND_WAIT(map, chip, adr, 0, 0, &__udelay); }) - - - static int do_point_onechip (struct map_info *map, struct flchip *chip, loff_t adr, size_t len) -@@ -1356,7 +1357,7 @@ - - ret = INVAL_CACHE_AND_WAIT(map, chip, adr, - adr, map_bankwidth(map), -- chip->word_write_time); -+ &chip->word_write_time); - if (ret) { - xip_enable(map, chip, adr); - printk(KERN_ERR "%s: word write error (status timeout)\n", map->name); -@@ -1593,7 +1594,7 @@ - - ret = INVAL_CACHE_AND_WAIT(map, chip, cmd_adr, - adr, len, -- chip->buffer_write_time); -+ &chip->buffer_write_time); - if (ret) { - map_write(map, CMD(0x70), cmd_adr); - chip->state = FL_STATUS; -@@ -1728,7 +1729,7 @@ - - ret = INVAL_CACHE_AND_WAIT(map, chip, adr, - adr, len, -- chip->erase_time); -+ &chip->erase_time); - if (ret) { - map_write(map, CMD(0x70), adr); - chip->state = FL_STATUS; |