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| author | Gregory Nutt <gnutt@nuttx.org> | 2013-10-10 12:02:41 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2013-10-10 12:02:41 -0600 |
| commit | fd46bd34ed0574a99ab37a344739c6657c434555 (patch) | |
| tree | 5006bbfb012bc33fc826d9096fc3c64247de3ca1 /nuttx/ChangeLog | |
| parent | 76ed6352fb940dd04e83b757d837dd5764a98c1c (diff) | |
| download | nuttx-fd46bd34ed0574a99ab37a344739c6657c434555.tar.gz nuttx-fd46bd34ed0574a99ab37a344739c6657c434555.tar.bz2 nuttx-fd46bd34ed0574a99ab37a344739c6657c434555.zip | |
SAMA5 LCDC: Move DMA descriptors out of internal SRAM and into SDRAM. I am not completely clear, but it looks like the LCDC cannot support DMA from internal SRAM
Diffstat (limited to 'nuttx/ChangeLog')
| -rw-r--r-- | nuttx/ChangeLog | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog index a714d687f..ec9c3e68a 100644 --- a/nuttx/ChangeLog +++ b/nuttx/ChangeLog @@ -5729,6 +5729,11 @@ * configs/arduino-due/Kconfig and include/board.h: Add configuration to select revision 3 of the Arduino Due which has some small but important differences. Suggested by gdi@embedders.org. + * arch/arm/src/sama5/sam_allocateheap.c, Kconfig, chip/sama5d3_memorymap.h: + Add support so that subsets of the total DRAM (and other external + memory) can be added to the heap, leaving other memory reserved for + other purposes (like LCDC framebuffers) (2013-10-10). + * arch/arm/src/sama5/sam_lcd.c: Change how DMA descriptors are + allocated. My reading of the SAMA5 MATRIX is that the LCDC will + be unable to DMA from internal SRAM (2012-10-10). -D - differences |