diff options
| author | Masahiro Yamada <[email protected]> | 2014-11-07 18:48:33 +0900 |
|---|---|---|
| committer | Masahiro Yamada <[email protected]> | 2014-11-12 00:21:28 +0900 |
| commit | 048899ba8c54bc3e094185d69d6a62d7e7f9cf30 (patch) | |
| tree | a28bf7a0be3c31389d722f5bccaac6643c89d677 /arch/arm/include | |
| parent | 113ef59e45b35f95b3b6b914bae671d61721e9ca (diff) | |
usb: UniPhier: add UniPhier on-chip EHCI host driver support
Support EHCI host driver used on Panasonic UniPhier platform.
Since Device Tree is not supported on UniPhier yet, the base address
of USB cores are passed from board files (platdevice.c).
TODO for me:
Move the base address to device trees.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Marek Vasut <[email protected]>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/arch-uniphier/ehci-uniphier.h | 33 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-uniphier/platdevice.h | 2 |
2 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-uniphier/ehci-uniphier.h b/arch/arm/include/asm/arch-uniphier/ehci-uniphier.h new file mode 100644 index 00000000000..e9c5fb4af84 --- /dev/null +++ b/arch/arm/include/asm/arch-uniphier/ehci-uniphier.h @@ -0,0 +1,33 @@ +/* + * Copyright (C) 2014 Panasonic Corporation + * Author: Masahiro Yamada <[email protected]> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __PLAT_UNIPHIER_EHCI_H +#define __PLAT_UNIPHIER_EHCI_H + +#include <linux/types.h> +#include <asm/io.h> +#include "mio-regs.h" + +struct uniphier_ehci_platform_data { + unsigned long base; +}; + +extern struct uniphier_ehci_platform_data uniphier_ehci_platdata[]; + +static inline void uniphier_ehci_reset(int index, int on) +{ + u32 tmp; + + tmp = readl(MIO_USB_RSTCTRL(index)); + if (on) + tmp &= ~MIO_USB_RSTCTRL_XRST; + else + tmp |= MIO_USB_RSTCTRL_XRST; + writel(tmp, MIO_USB_RSTCTRL(index)); +} + +#endif /* __PLAT_UNIPHIER_EHCI_H */ diff --git a/arch/arm/include/asm/arch-uniphier/platdevice.h b/arch/arm/include/asm/arch-uniphier/platdevice.h index cdf7d132d44..62a512659c3 100644 --- a/arch/arm/include/asm/arch-uniphier/platdevice.h +++ b/arch/arm/include/asm/arch-uniphier/platdevice.h @@ -21,4 +21,6 @@ U_BOOT_DEVICE(serial##n) = { \ .platdata = &serial_device##n \ }; +#include <asm/arch/ehci-uniphier.h> + #endif /* ARCH_PLATDEVICE_H */ |