Wangjialin fad639f0d4 feature(psram): update psram initialization. ... 1. use spi functions in rom 2. remove unnecessary GPIO configurations. 3. remove unnecessary dummy settings. 4. enable dummy out function 5. flash and psram have independent timing setting registers. 6. no need to set 1.9v for LDO in 80Mhz 7. set IO driver ability to 1 by default. 8. no need to use GPIO matrix on esp32s2, IO MUX is recommended 9. enable spi clock mode and IO mode settings		2020-01-16 17:41:31 +08:00
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esp32/rom	Merge branch 'master' into feature/esp32s2beta_merge	2019-09-16 16:18:48 +10:00
esp32s2beta/rom	feature(psram): update psram initialization.	2020-01-16 17:41:31 +08:00