This patchset adds support for USB for the Amlogic Meson GXL SoCs following the work done for Linux by Martin Blumenstingl at [1] [2] [3].
The support consist of : - A port of dwc3-of-simple from Linux to U-boot - A change to support more than 2 PHYs in the DWC3 DM driver - An USB2 PHY Driver and an USB3 PHY Driver The DWC3 Controller has up to 4 PHYs connected : - 2 USB2 PHYs and an USB3 PHY for GXL SoCs - 3 USB2 PHYs and an USB3 PHY for the GXM SoC Variant This is enabled by the "usb: host: dwc3: Add support for multiple PHYs" patch. This patch is based on the "xhci-dwc3: Couple of fixes for USB3 support" serie from Vignesh R, on the u-boot-usb tree. The DWC3 Controller glue is generic enough to use the dwc3-of-simple from Linux and can be easily ported to U-Boot as a Simple-Bus with Glue-Specific clocks and Reset lines setup. This depends on the recently applied : - clk: Add get/enable/disable/release for a bulk of clocks at [4] - reset: Add get/assert/deassert/release for bulk of reset signals at [5] in order to manage the clocks and resets of the Glue in a clean fashion. The USB PHY driver supports the standard generic PHY interface and supports the power-on/off calls and set the Host mode by default. They are based on the excellent work from Martin Blumenstingl merged in linux. Changes since v1: - switch to submitted clk/reset bulk API - splitted dwc3 multiple phy init error between poweroff & exit [1] https://lkml.kernel.org/r/20180303184700.21480-1-martin.blumensti...@googlemail.com [2] https://lkml.kernel.org/r/20180128202245.25021-1-martin.blumensti...@googlemail.com [3] https://lkml.kernel.org/r/20180303214309.25643-1-martin.blumensti...@googlemail.com [4] http://lists.infradead.org/pipermail/linux-amlogic/2018-April/006952.html [5] http://lists.infradead.org/pipermail/linux-amlogic/2018-April/006949.html Neil Armstrong (3): usb: host: Add simple of glue driver for DWC3 USB Controllers integration usb: host: dwc3: Add support for multiple PHYs phy: Add Amlogic Meson USB2 & USB3 Generic PHY drivers drivers/phy/Kconfig | 8 ++ drivers/phy/Makefile | 1 + drivers/phy/meson-gxl-usb2.c | 238 ++++++++++++++++++++++++++++++++++++++ drivers/phy/meson-gxl-usb3.c | 201 ++++++++++++++++++++++++++++++++ drivers/usb/host/Kconfig | 7 ++ drivers/usb/host/Makefile | 1 + drivers/usb/host/dwc3-of-simple.c | 123 ++++++++++++++++++++ drivers/usb/host/xhci-dwc3.c | 113 ++++++++++-------- 8 files changed, 645 insertions(+), 47 deletions(-) create mode 100644 drivers/phy/meson-gxl-usb2.c create mode 100644 drivers/phy/meson-gxl-usb3.c create mode 100644 drivers/usb/host/dwc3-of-simple.c -- 2.7.4 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
