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authorAjay Bhargav <ajay.bhargav@einfochips.com>2012-02-13 03:27:43 +0000
committerMarek Vasut <marek.vasut@gmail.com>2012-03-19 00:08:26 +0100
commit54cb00486eace9c0931d855dfadfcfdcecea78fc (patch)
tree83dc3c787959836022c97b7d24254c4c117a4582 /drivers/usb/host/ehci-armada100.c
parent732c7c2446fb98fb2c3b7879f33080286a2d620d (diff)
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USB: Armada100: EHCI Driver for Armada100 SOCs
This patch adds support for USB EHCI driver for Armada100 SOCs. Signed-off-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
Diffstat (limited to 'drivers/usb/host/ehci-armada100.c')
-rw-r--r--drivers/usb/host/ehci-armada100.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-armada100.c b/drivers/usb/host/ehci-armada100.c
new file mode 100644
index 0000000..7725641
--- /dev/null
+++ b/drivers/usb/host/ehci-armada100.c
@@ -0,0 +1,64 @@
+/*
+ * (C) Copyright 2012
+ * eInfochips Ltd. <www.einfochips.com>
+ * Written-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
+ *
+ * This driver is based on Kirkwood echi driver
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <usb.h>
+#include "ehci.h"
+#include "ehci-core.h"
+#include <asm/arch/cpu.h>
+#include <asm/arch/armada100.h>
+#include <asm/arch/utmi-armada100.h>
+
+/*
+ * EHCI host controller init
+ */
+int ehci_hcd_init(void)
+{
+ if (utmi_init() < 0)
+ return -1;
+
+ hccr = (struct ehci_hccr *)(ARMD1_USB_HOST_BASE + 0x100);
+ hcor = (struct ehci_hcor *)((uint32_t) hccr
+ + HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
+
+ debug("armada100-ehci: init hccr %x and hcor %x hc_length %d\n",
+ (uint32_t)hccr, (uint32_t)hcor,
+ (uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
+
+ return 0;
+}
+
+/*
+ * EHCI host controller stop
+ */
+int ehci_hcd_stop(void)
+{
+ return 0;
+}