| /* |
| * 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); |
| } |