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authorMasahiro Yamada <yamada.m@jp.panasonic.com>2014-11-07 18:48:33 +0900
committerMasahiro Yamada <yamada.m@jp.panasonic.com>2014-11-12 00:21:28 +0900
commit048899ba8c54bc3e094185d69d6a62d7e7f9cf30 (patch)
treea28bf7a0be3c31389d722f5bccaac6643c89d677 /arch/arm/include
parent113ef59e45b35f95b3b6b914bae671d61721e9ca (diff)
downloadblackbird-obmc-uboot-048899ba8c54bc3e094185d69d6a62d7e7f9cf30.tar.gz
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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 <yamada.m@jp.panasonic.com> Acked-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/arch-uniphier/ehci-uniphier.h33
-rw-r--r--arch/arm/include/asm/arch-uniphier/platdevice.h2
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 0000000000..e9c5fb4af8
--- /dev/null
+++ b/arch/arm/include/asm/arch-uniphier/ehci-uniphier.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2014 Panasonic Corporation
+ * Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
+ *
+ * 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 cdf7d132d4..62a512659c 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 */
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