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a4c2b141f8
We found the api utility in ROM doesn't enable burst mode of GDMA. It influences the performance of FW download a lot. The CL modified GDMA for moving the code of the other region from flash to ram. And move a function that kicks off GMDA transactions to suspend ram in case this utility is erased by itself. This issue will be fixed in our next generation. Modified sources: 1. system.c: Implement GDMA bypass. 2. system_chip.h: Import flash addresses for GDMA bypass code. 3. registers.h: Add GDMA register definitions. 4. cortex-m/ec.lds.S: Add lowpower_ram2 section in linker script. BRANCH=none BUG=chrome-os-partner:56794 TEST=make BOARD=npcx_evb; test sysjump and measure download time Change-Id: I8490f8f2e5a8cdcb6fd10511878c4a4af8073bbf Signed-off-by: Mulin Chao <mlchao@nuvoton.com> Reviewed-on: https://chromium-review.googlesource.com/381779 Commit-Ready: Shawn N <shawnn@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>