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>

3 files changed, 66 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-armada100/armada100.h b/arch/arm/include/asm/arch-armada100/armada100.h
index 70fba27707..614de558a8 100644
--- a/arch/arm/include/asm/arch-armada100/armada100.h
+++ b/arch/arm/include/asm/arch-armada100/armada100.h
@@ -68,6 +68,7 @@
 #define ARMD1_SSP5_BASE		0xD4021000
 #define ARMD1_UART3_BASE	0xD4026000
 #define ARMD1_MPMU_BASE		0xD4050000
+#define ARMD1_USB_HOST_BASE	0xD4209000
 #define ARMD1_APMU_BASE		0xD4282800
 #define ARMD1_CPU_BASE		0xD4282C00
 
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 7c4df534bf..5fdc97b8c8 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -35,6 +35,7 @@ COBJS-$(CONFIG_USB_SL811HS) += sl811-hcd.o
 
 # echi
 COBJS-$(CONFIG_USB_EHCI) += ehci-hcd.o
+COBJS-$(CONFIG_USB_EHCI_ARMADA100) += ehci-armada100.o utmi-armada100.o
 ifdef CONFIG_MPC512X
 COBJS-$(CONFIG_USB_EHCI_FSL) += ehci-mpc512x.o
 else
diff --git a/drivers/usb/host/ehci-armada100.c b/drivers/usb/host/ehci-armada100.c
new file mode 100644
index 0000000000..7725641487
--- /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;
+}