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https://github.com/brain-hackers/u-boot-brain
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307ecb6db0
Support USB on PSC3 on the mpc5200. Before this patch, enabling USB support would reconfigure PSC4 and PSC5 to USB. The mpc5200 does not support USB enabled on both the standard USB port and PSC3. This patch masks the appropriate bits when enabling USB. Signed-off-by: Eric Millbrandt <emillbrandt@dekaresearch.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Remy Bohmer <linux@bohmer.net>
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/*
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* (C) Copyright 2007
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* Markus Klotzbuecher, DENX Software Engineering <mk@denx.de>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT)
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#include <mpc5xxx.h>
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int usb_cpu_init(void)
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{
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/* Set the USB Clock */
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*(vu_long *)MPC5XXX_CDM_48_FDC = CONFIG_USB_CLOCK;
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#ifdef CONFIG_PSC3_USB /* USB is using the alternate configuration */
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/* remove all PSC3 USB bits first before ORing in ours */
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*(vu_long *)MPC5XXX_GPS_PORT_CONFIG &= ~0x00804f00;
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#else
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/* remove all USB bits first before ORing in ours */
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*(vu_long *)MPC5XXX_GPS_PORT_CONFIG &= ~0x00807000;
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#endif
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/* Activate USB port */
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*(vu_long *)MPC5XXX_GPS_PORT_CONFIG |= CONFIG_USB_CONFIG;
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return 0;
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}
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int usb_cpu_stop(void)
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{
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return 0;
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}
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int usb_cpu_init_fail(void)
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{
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return 0;
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}
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#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */
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