2 commits

Author	SHA1	Message	Date
Solomon Peachy	ec413f7692	jz4760: Heavily rework USB driver to add working DMA support ... * DMA Bulk IN (ie our TX) results in sequential transfers 33-68% faster. * DMA Bulk OUT (ie RX) is mostly stripped out due to complete brokenness. * Interrupt and control endpoints remain PIO-driven. Other improvements: 1) Use consistent endpoint references (no magic numbers) 2) Greatly enhanced logging 3) DMA support can be compiled out completely 4) Setting lockswitch will disable all DMA operations at runtime 5) Much more robust error checking and recovery Change-Id: I57b82e655e55ced0dfe289e379b0b61d8fe443b4	2020-09-17 11:26:04 -04:00
Amaury Pouly	cc2389b7a6	hwstub: add jz4760b stub ... The stub is quite versatile: it can be loaded using bootrom or another other means (like factory boot on Fiio X1). It relocates itself to TCSM0 and provides basic functionality (it does not recover from failed read/writes at the moment). Change-Id: Ib646a4b43fba9358d6f93f0f73a5c2e9bcd775a7	2017-01-24 15:22:27 +01:00