imxrt-flash: fast read fix for ISSI NOR flash #335
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@ziemleszcz increase here: Line 40 in 8e760cc It can be done consequence free (until kernel still fits in the itcm it is :)) |
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Unit Test Results7 460 tests 6 745 ✅ 37m 46s ⏱️ Results for commit 036e0ae. ♻️ This comment has been updated with latest results. |
gerard5
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Jun 25, 2024
ISSI NOR chips use selecteble dummy cycles to support fast read command. For 133 MHz fast read should include 11 dummy cycles (default is 6). To set correct number of dummy cycles: - FCFB and flexspi_init() use 60 MHz clock and normal read - add custom ISSI commands and nor_issiInit() - add flexspi_postinit() which switches to final 133 MHz clock DONE: RTOS-128
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ISSI NOR chips use selecteble dummy cycles to support fast read command. For 133 MHz fast read should include 11 dummy cycles (default is 6). To set correct number of dummy cycles:
DONE: RTOS-128
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