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USB: Armada100: EHCI Driver for Armada100 SOCs

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This patch adds support for USB EHCI driver for Armada100 SOCs.

Signed-off-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
This commit is contained in:
Ajay Bhargav 2012-02-13 03:27:43 +00:00 committed by Marek Vasut
parent 732c7c2446
commit 54cb00486e
3 changed files with 66 additions and 0 deletions
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1
arch/arm/include/asm/arch-armada100/armada100.h
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@ -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

1
drivers/usb/host/Makefile
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@ -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

64
drivers/usb/host/ehci-armada100.c Normal file
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@ -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;
}