Re: [PATCH v8 2/4] firmware: raspberrypi: Introduce vl805 init routine

2020-05-09 Thread Nicolas Saenz Julienne
On Sat, 2020-05-09 at 12:02 +0200, Stefan Wahren wrote: > Hi Nicolas, > > Am 07.05.20 um 23:48 schrieb Rob Herring: > > On Tue, 5 May 2020 18:13:15 +0200, Nicolas Saenz Julienne wrote: > > > The Raspberry Pi 4 gets its USB functionality from VL805, a PCIe chip > > > that implements xHCI. After a

Re: [PATCH v8 2/4] firmware: raspberrypi: Introduce vl805 init routine

2020-05-09 Thread Stefan Wahren
Am 09.05.20 um 12:02 schrieb Stefan Wahren: > Hi Nicolas, > > Am 07.05.20 um 23:48 schrieb Rob Herring: >> On Tue, 5 May 2020 18:13:15 +0200, Nicolas Saenz Julienne wrote: >>> The Raspberry Pi 4 gets its USB functionality from VL805, a PCIe chip >>> that implements xHCI. After a PCI reset,

Re: [PATCH v8 2/4] firmware: raspberrypi: Introduce vl805 init routine

2020-05-09 Thread Stefan Wahren
Hi Nicolas, Am 07.05.20 um 23:48 schrieb Rob Herring: > On Tue, 5 May 2020 18:13:15 +0200, Nicolas Saenz Julienne wrote: >> The Raspberry Pi 4 gets its USB functionality from VL805, a PCIe chip >> that implements xHCI. After a PCI reset, VL805's firmware may either be >> loaded directly from an

Re: [PATCH v8 2/4] firmware: raspberrypi: Introduce vl805 init routine

2020-05-07 Thread Rob Herring
On Tue, 5 May 2020 18:13:15 +0200, Nicolas Saenz Julienne wrote: > The Raspberry Pi 4 gets its USB functionality from VL805, a PCIe chip > that implements xHCI. After a PCI reset, VL805's firmware may either be > loaded directly from an EEPROM or, if not present, by the SoC's > co-processor,

[PATCH v8 2/4] firmware: raspberrypi: Introduce vl805 init routine

2020-05-05 Thread Nicolas Saenz Julienne
The Raspberry Pi 4 gets its USB functionality from VL805, a PCIe chip that implements xHCI. After a PCI reset, VL805's firmware may either be loaded directly from an EEPROM or, if not present, by the SoC's co-processor, VideoCore. RPi4's VideoCore OS contains both the non public firmware load