mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 08:58:52 +09:00
82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/*
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* (C) Copyright 2004
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* Klaus Heydeck, Kieback & Peter GmbH & Co KG, heydeck@kieback-peter.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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#include <mpc8xx.h>
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#include "../common/kup.h"
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#define SL811_ADR (0x50000000)
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#define SL811_DAT (0x50000001)
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static void sl811_write_index_data (__u8 index, __u8 data)
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{
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*(volatile unsigned char *) (SL811_ADR) = index;
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__asm__ ("eieio");
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*(volatile unsigned char *) (SL811_DAT) = data;
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__asm__ ("eieio");
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}
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static __u8 sl811_read_index_data (__u8 index)
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{
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__u8 data;
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*(volatile unsigned char *) (SL811_ADR) = index;
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__asm__ ("eieio");
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data = *(volatile unsigned char *) (SL811_DAT);
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__asm__ ("eieio");
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return (data);
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}
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int usb_init_kup4x (void)
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{
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volatile immap_t *immap = (immap_t *) CFG_IMMR;
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volatile memctl8xx_t *memctl = &immap->im_memctl;
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int i;
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unsigned char tmp;
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memctl = &immap->im_memctl;
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memctl->memc_or7 = 0xFFFF8726;
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memctl->memc_br7 = 0x50000401; /* start at 0x50000000 */
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/* BP 14 low = USB ON */
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immap->im_cpm.cp_pbdat &= ~(BP_USB_VCC);
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/* PB 14 nomal port */
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immap->im_cpm.cp_pbpar &= ~(BP_USB_VCC);
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/* output */
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immap->im_cpm.cp_pbdir |= (BP_USB_VCC);
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puts ("USB: ");
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for (i = 0x10; i < 0xff; i++) {
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sl811_write_index_data (i, i);
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tmp = (sl811_read_index_data (i));
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if (tmp != i) {
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printf ("SL811 compare error index=0x%02x read=0x%02x\n", i, tmp);
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return (-1);
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}
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}
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printf ("SL811 ready\n");
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return (0);
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}
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