Merge branch 'master' of git://www.denx.de/git/u-boot-at91

1 files changed, 54 insertions, 0 deletions

diff --git a/cpu/arm926ejs/at91sam9/usb.c b/cpu/arm926ejs/at91sam9/usb.c
new file mode 100644
index 0000000000..d678897dc7
--- /dev/null
+++ b/cpu/arm926ejs/at91sam9/usb.c
@@ -0,0 +1,54 @@
+/*
+ * (C) Copyright 2006
+ * DENX Software Engineering <mk <at> denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+#if defined(CONFIG_USB_OHCI_NEW) && defined(CFG_USB_OHCI_CPU_INIT)
+
+#include <asm/arch/hardware.h>
+#include <asm/arch/io.h>
+#include <asm/arch/at91_pmc.h>
+
+int usb_cpu_init(void)
+{
+	/* Enable USB host clock. */
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_UHP);
+	at91_sys_write(AT91_PMC_SCER, AT91_PMC_UHP);
+
+	return 0;
+}
+
+int usb_cpu_stop(void)
+{
+	/* Disable USB host clock. */
+	at91_sys_write(AT91_PMC_PCDR, 1 << AT91_ID_UHP);
+	at91_sys_write(AT91_PMC_SCDR, AT91_PMC_UHP);
+	return 0;
+}
+
+int usb_cpu_init_fail(void)
+{
+	return usb_cpu_stop();
+}
+
+#endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */