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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
| commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
| tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/usb/host/xhci-rzv2m.c | |
| parent | Initial commit. (diff) | |
| download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip | |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/usb/host/xhci-rzv2m.c')
| -rw-r--r-- | drivers/usb/host/xhci-rzv2m.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-rzv2m.c b/drivers/usb/host/xhci-rzv2m.c new file mode 100644 index 0000000000..ec65b24eaf --- /dev/null +++ b/drivers/usb/host/xhci-rzv2m.c @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * xHCI host controller driver for RZ/V2M + * + * Copyright (C) 2022 Renesas Electronics Corporation + */ + +#include <linux/usb/rzv2m_usb3drd.h> +#include "xhci-plat.h" +#include "xhci-rzv2m.h" + +#define RZV2M_USB3_INTEN 0x1044 /* Interrupt Enable */ + +#define RZV2M_USB3_INT_XHC_ENA BIT(0) +#define RZV2M_USB3_INT_HSE_ENA BIT(2) +#define RZV2M_USB3_INT_ENA_VAL (RZV2M_USB3_INT_XHC_ENA \ + | RZV2M_USB3_INT_HSE_ENA) + +int xhci_rzv2m_init_quirk(struct usb_hcd *hcd) +{ + struct device *dev = hcd->self.controller; + + rzv2m_usb3drd_reset(dev->parent, true); + + return 0; +} + +void xhci_rzv2m_start(struct usb_hcd *hcd) +{ + u32 int_en; + + if (hcd->regs) { + /* Interrupt Enable */ + int_en = readl(hcd->regs + RZV2M_USB3_INTEN); + int_en |= RZV2M_USB3_INT_ENA_VAL; + writel(int_en, hcd->regs + RZV2M_USB3_INTEN); + } +} |