bc67c946af
- seems to work, only the APIC timer doesn't work! git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@273 315a16e6-25f9-4109-90ae-ca3045a26c18
90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/*
|
|
* Copyright 2010 Stefan Lankes, Chair for Operating Systems,
|
|
* RWTH Aachen University
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* This file is part of MetalSVM.
|
|
*/
|
|
|
|
#include <metalsvm/stdio.h>
|
|
#include <metalsvm/errno.h>
|
|
#include <asm/scc.h>
|
|
#include <asm/io.h>
|
|
|
|
#ifdef CONFIG_ROCKCREEK
|
|
|
|
#define CCR_INTR_ACTIVE 0x02
|
|
|
|
scc_info_t scc_info;
|
|
|
|
int scc_init(void)
|
|
{
|
|
uint32_t x, y, z;
|
|
uint32_t tmp;
|
|
|
|
kprintf("Initialize Rock Creek!\n");
|
|
|
|
tmp = *((uint32_t*) (CRB_OWN+MYTILEID));
|
|
x=(tmp>>3) & 0x0f; // bits 06:03
|
|
y=(tmp>>7) & 0x0f; // bits 10:07
|
|
z=(tmp ) & 0x07; // bits 02:00
|
|
scc_info.pid = PID(x, y, z);
|
|
kprintf("SCC Processor Id: %u (%u,%u,%u)\n", scc_info.pid, x, y, z);
|
|
|
|
/* default values for 16 GB system */
|
|
scc_info.private_mem[0].low = 0x00;
|
|
scc_info.private_mem[0].high = 0x13FFFFFF;
|
|
scc_info.private_mem[1].low = 0xFF000000;
|
|
scc_info.private_mem[1].high = 0xFFFFFFFF;
|
|
|
|
tmp = *((uint32_t*) (CRB_OWN+GCBCFG));
|
|
tmp = (tmp & 0x3FFFFFF) >> 7;
|
|
//kprintf("Own GCBCFG is 0x%x\n", tmp);
|
|
if (tmp == 0x70E1) {
|
|
scc_info.tile_frequency = 800;
|
|
scc_info.router_frequency = 1600;
|
|
} else {
|
|
scc_info.tile_frequency = 533;
|
|
scc_info.router_frequency = 800;
|
|
}
|
|
|
|
kprintf("The default tile frequency is %u MHz\nThe default router frequency is %u MHz\n",
|
|
scc_info.tile_frequency, scc_info.router_frequency);
|
|
|
|
if (z == 0)
|
|
tmp = *((uint32_t*) (CRB_OWN+GLCFG0));
|
|
else if (z == 1)
|
|
tmp = *((uint32_t*) (CRB_OWN+GLCFG1));
|
|
else
|
|
tmp = 0;
|
|
|
|
/* set INTR to enable maskable interrupts */
|
|
tmp = tmp | CCR_INTR_ACTIVE;
|
|
if (z == 0)
|
|
*((uint32_t*) (CRB_OWN+GLCFG0)) = tmp;
|
|
else if (z == 1)
|
|
*((uint32_t*) (CRB_OWN+GLCFG1)) = tmp;
|
|
|
|
/* reload core configuration */
|
|
tmp = 0;
|
|
if (z == 0)
|
|
tmp = *((uint32_t*) (CRB_OWN+GLCFG0));
|
|
else if (z == 1)
|
|
tmp = *((uint32_t*) (CRB_OWN+GLCFG1));
|
|
kprintf("Core Configuration %u: 0x%x\n", z, tmp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif
|