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/*
* Copyright (c) 2011 Aeroflex Gaisler
*
* BSD license:
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <asm-leon/leon.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
unsigned int
leon3_ahbslv_scan (register unsigned int vendor, register unsigned int driver)
{
register unsigned int conf, i, *confp;
register unsigned int cfg_area =
(unsigned int) (LEON3_IO_AREA | LEON3_CONF_AREA |
LEON3_AHB_SLAVE_CONF_AREA);
for (i = 0; i < LEON3_AHB_SLAVES; i++)
{
confp = (unsigned int *) (cfg_area + (i * LEON3_AHB_CONF_WORDS * 4));
conf = *confp;
if ((amba_vendor (conf) == vendor) && (amba_device (conf) == driver))
{
return (unsigned int) confp;
}
}
return 0;
}
unsigned int
leon3_getbase (register unsigned int *mbar, register unsigned int iobase,
int *irq)
{
register unsigned int conf = mbar[1];
return (unsigned int) (((iobase & 0xfff00000) |
((conf & 0xfff00000) >> 12)) & (((conf & 0x0000fff0)
<< 4) |
0xfff00000));
}
unsigned int
leon3_apbslv_scan (register unsigned int base,
register unsigned int vendor,
register unsigned int driver,
amba_apb_device * apbdevs, int c)
{
register unsigned int conf, i, *confp;
int j = 0;
for (i = 0; i < LEON3_APB_SLAVES; i++)
{
confp = (unsigned int *) (base + (i * LEON3_APB_CONF_WORDS * 4));
conf = *confp;
if ((amba_vendor (conf) == vendor) && (amba_device (conf) == driver))
{
if (j < c)
{
apbdevs[j].start = leon3_getbase (confp, base, 0);
apbdevs[j].irq = amba_irq (conf);
j++;
}
}
}
return j;
}
unsigned int
leon3_getapbbase (register unsigned int vendor,
register unsigned int driver,
amba_apb_device * apbdevs, int c)
{
unsigned int apb = leon3_ahbslv_scan (VENDOR_GAISLER, GAISLER_APBMST);
apb = (*(unsigned int *) (apb + 16)) & LEON3_IO_AREA;
apb |= LEON3_CONF_AREA;
return leon3_apbslv_scan (apb, vendor, driver, apbdevs, c);
}
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