diff options
Diffstat (limited to 'libgloss/sparc_leon/amba.c')
| -rw-r--r-- | libgloss/sparc_leon/amba.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/libgloss/sparc_leon/amba.c b/libgloss/sparc_leon/amba.c deleted file mode 100644 index 0df6759da..000000000 --- a/libgloss/sparc_leon/amba.c +++ /dev/null @@ -1,152 +0,0 @@ -/* - * 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> - -/*#define DEBUG_CONFIG*/ - -/* Structure containing address to devices found on the Amba Plug&Play bus */ -amba_confarea_type amba_conf; - -/* Pointers to Interrupt Controller configuration registers */ -volatile LEON3_IrqCtrl_Regs_Map *LEON3_IrqCtrl_Regs = 0; -volatile LEON3_GpTimer_Regs_Map *LEON3_GpTimer_Regs = 0; -unsigned long LEON3_GpTimer_Irq = 0; - -unsigned long -amba_find_apbslv_addr (unsigned long vendor, unsigned long device, - unsigned long *irq) -{ - unsigned int i, conf, iobar; - for (i = 0; i < amba_conf.apbslv.devnr; i++) - { - conf = amba_get_confword (amba_conf.apbslv, i, 0); - if ((amba_vendor (conf) == vendor) && (amba_device (conf) == device)) - { - if (irq) - { - *irq = amba_irq (conf); - } - iobar = amba_apb_get_membar (amba_conf.apbslv, i); - return amba_iobar_start (amba_conf.apbslv.apbmst[i], iobar); - } - } - return 0; -} - -#define amba_insert_device(tab, address) do { \ - if (LEON3_BYPASS_LOAD_PA(address)) { \ - (tab)->addr[(tab)->devnr] = (address); \ - (tab)->devnr ++; \ - } \ - } while(0) - -#define amba_insert_apb_device(tab, address, apbmst, idx) do { \ - if (*(address)) { \ - (tab)->addr[(tab)->devnr] = (address); \ - (tab)->apbmst[(tab)->devnr] = (apbmst); \ - (tab)->apbmstidx[(tab)->devnr] = (idx); \ - (tab)->devnr ++; \ - } \ - } while(0) - -/* - * Used to scan system bus. Probes for AHB masters, AHB slaves and - * APB slaves. Addresses to configuration areas of the AHB masters, - * AHB slaves, APB slaves and APB master are storeds in - * amba_ahb_masters, amba_ahb_slaves and amba. - */ - -int amba_init_done = 0; - -void -amba_init (void) -{ - unsigned int *cfg_area; /* address to configuration area */ - unsigned int mbar, conf, apbmst; - int i, j, idx = 0; - - if (amba_init_done) - { - return; - } - amba_init_done = 1; - - memset (&amba_conf, 0, sizeof (amba_conf)); - /*amba_conf.ahbmst.devnr = 0; amba_conf.ahbslv.devnr = 0; amba_conf.apbslv.devnr = 0; */ - - cfg_area = (unsigned int *) (LEON3_IO_AREA | LEON3_CONF_AREA); - - for (i = 0; i < LEON3_AHB_MASTERS; i++) - { - amba_insert_device (&amba_conf.ahbmst, cfg_area); - cfg_area += LEON3_AHB_CONF_WORDS; - } - - cfg_area = - (unsigned int *) (LEON3_IO_AREA | LEON3_CONF_AREA | - LEON3_AHB_SLAVE_CONF_AREA); - for (i = 0; i < LEON3_AHB_SLAVES; i++) - { - amba_insert_device (&amba_conf.ahbslv, cfg_area); - cfg_area += LEON3_AHB_CONF_WORDS; - } - - for (i = 0; i < amba_conf.ahbslv.devnr; i++) - { - conf = amba_get_confword (amba_conf.ahbslv, i, 0); - mbar = amba_ahb_get_membar (amba_conf.ahbslv, i, 0); - if ((amba_vendor (conf) == VENDOR_GAISLER) - && (amba_device (conf) == GAISLER_APBMST)) - { - int k; - /*amba_conf.apbmst = */ apbmst = amba_membar_start (mbar); - cfg_area = (unsigned int *) (apbmst | LEON3_CONF_AREA); - - for (j = amba_conf.apbslv.devnr, k = 0; - j < AMBA_MAXAPB_DEVS && k < AMBA_MAXAPB_DEVS_PERBUS; j++, k++) - { - amba_insert_apb_device (&amba_conf.apbslv, cfg_area, apbmst, - idx); - cfg_area += LEON3_APB_CONF_WORDS; - } - idx++; - } - } - - /* Find LEON3 Interrupt controler */ - LEON3_IrqCtrl_Regs = (volatile LEON3_IrqCtrl_Regs_Map *) - amba_find_apbslv_addr (VENDOR_GAISLER, GAISLER_IRQMP, 0); - LEON3_GpTimer_Regs = (volatile LEON3_GpTimer_Regs_Map *) - amba_find_apbslv_addr (VENDOR_GAISLER, GAISLER_GPTIMER, - &LEON3_GpTimer_Irq); - if (LEON3_IrqCtrl_Regs) - { - LEON3_BYPASS_STORE_PA (&(LEON3_IrqCtrl_Regs->mask[0]), 0); - } -} |