Mercurial > ecos-v3_0-branch
changeset 2545:3e357a0a0869
* include/flash_28fxxx.inl:
* include/flash_28fxxx_parts.inl: Support write buffering. Add an
entry to the parts table indicating the size of the buffer and
copy it into the device table during initialization.
| author | asl |
|---|---|
| date | Thu, 04 Sep 2008 06:00:09 +0000 |
| parents | ec29669c67e2 |
| children | 28ecf71a7103 |
| files | packages/devs/flash/intel/28fxxx/current/ChangeLog packages/devs/flash/intel/28fxxx/current/include/flash_28fxxx.inl packages/devs/flash/intel/28fxxx/current/include/flash_28fxxx_parts.inl |
| diffstat | 3 files changed, 17 insertions(+), 2 deletions(-) [+] |
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line diff
--- a/packages/devs/flash/intel/28fxxx/current/ChangeLog +++ b/packages/devs/flash/intel/28fxxx/current/ChangeLog @@ -1,3 +1,10 @@ +2008-09-04 Dave Lawrence <dlawrence@ad-holdings.co.uk> + + * include/flash_28fxxx.inl: + * include/flash_28fxxx_parts.inl: Support write buffering. Add an + entry to the parts table indicating the size of the buffer and + copy it into the device table during initialization. + 2006-12-14 Yoshinori Sato <ysato@users.sourceforge.jp> * cdl/flash_intel_28fxxx.cdl, include/flash_28fxxx_parts.inl: Add
--- a/packages/devs/flash/intel/28fxxx/current/include/flash_28fxxx.inl +++ b/packages/devs/flash/intel/28fxxx/current/include/flash_28fxxx.inl @@ -141,6 +141,7 @@ typedef struct flash_dev_info { cyg_uint32 device_size; cyg_bool locking; // supports locking cyg_bool buffered_w; // supports buffered writes + cyg_uint32 buffer_size; cyg_bool bootblock; cyg_uint32 bootblocks[12]; // 0 is bootblock offset, 1-11 sub-sector sizes (or 0) cyg_bool banked; @@ -198,6 +199,7 @@ flash_hwr_init(void) flash_info.blocks = flash_dev_info->block_count * CYGNUM_FLASH_SERIES; flash_info.start = (void *)CYGNUM_FLASH_BASE; flash_info.end = (void *)(CYGNUM_FLASH_BASE+ (flash_dev_info->device_size * CYGNUM_FLASH_SERIES)); + flash_info.buffer_size = flash_dev_info->buffer_size; return FLASH_ERR_OK; } @@ -367,8 +369,10 @@ flash_program_buf(void* addr, void* data #ifdef CYGHWR_DEVS_FLASH_INTEL_BUFFERED_WRITES // FIXME: This code has not been adjusted to handle bootblock // parts yet. - // FIXME: This code does not appear to work anymore - if (0 && flash_dev_info->buffered_w) { + // If the buffer size has not been initialised, buffered write will + // be skipped. + + if (flash_dev_info->buffered_w && buffer_size) { int i, wc; // Write any big chunks first while (len >= buffer_size) {
--- a/packages/devs/flash/intel/28fxxx/current/include/flash_28fxxx_parts.inl +++ b/packages/devs/flash/intel/28fxxx/current/include/flash_28fxxx_parts.inl @@ -217,6 +217,7 @@ base_mask : ~(0x1000000 * CYGNUM_FLASH_INTERLEAVE - 1), locking : true, buffered_w : true, +// buffer_size: TODO!!! bootblock : false, banked : false }, @@ -231,6 +232,7 @@ base_mask : ~(0x1000000 * CYGNUM_FLASH_INTERLEAVE - 1), locking : true, buffered_w : true, +// buffer_size: TODO!!! bootblock : false, banked : false }, @@ -245,6 +247,7 @@ base_mask : ~(0x1000000 * CYGNUM_FLASH_INTERLEAVE - 1), locking : true, buffered_w : true, + buffer_size: 32, bootblock : false, banked : false }, @@ -258,6 +261,7 @@ device_size: 0x200000 * CYGNUM_FLASH_INTERLEAVE, base_mask : ~(0x200000 * CYGNUM_FLASH_INTERLEAVE - 1), buffered_w : true, +// buffer_size: TODO locking : false, bootblock : false, banked : false