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/* |
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* Copyright (C) 2005 Anders Gavare. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: dev_i80321.c,v 1.4 2005/10/26 14:37:04 debug Exp $ |
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* |
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* i80321. TODO: This is just a dummy so far. |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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|
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#include "cpu.h" |
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#include "device.h" |
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#include "machine.h" |
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#include "memory.h" |
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#include "misc.h" |
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|
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|
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#include "i80321reg.h" |
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|
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#define DEV_I80321_LENGTH VERDE_PMMR_SIZE |
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|
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struct i80321_data { |
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uint32_t mcu_reg[VERDE_MCU_SIZE / sizeof(uint32_t)]; |
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}; |
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|
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|
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/* |
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* dev_i80321_access(): |
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*/ |
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int dev_i80321_access(struct cpu *cpu, struct memory *mem, |
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uint64_t relative_addr, unsigned char *data, size_t len, |
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int writeflag, void *extra) |
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{ |
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struct i80321_data *d = extra; |
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uint64_t idata = 0, odata = 0; |
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char *n = NULL; |
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|
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if (writeflag == MEM_WRITE) |
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idata = memory_readmax64(cpu, data, len); |
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|
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if (relative_addr >= VERDE_MCU_BASE && |
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relative_addr < VERDE_MCU_BASE + VERDE_MCU_SIZE) { |
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int regnr = (relative_addr - VERDE_MCU_BASE) / sizeof(uint32_t); |
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if (writeflag == MEM_WRITE) |
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d->mcu_reg[regnr] = idata; |
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else |
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odata = d->mcu_reg[regnr]; |
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} |
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|
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switch (relative_addr) { |
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|
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case VERDE_MCU_BASE + MCU_SDBR: |
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n = "MCU_SDBR"; |
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break; |
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case VERDE_MCU_BASE + MCU_SBR0: |
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n = "MCU_SBR0"; |
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break; |
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case VERDE_MCU_BASE + MCU_SBR1: |
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n = "MCU_SBR1"; |
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break; |
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|
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default:if (writeflag == MEM_READ) { |
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fatal("[ i80321: read from 0x%x ]\n", |
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(int)relative_addr); |
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} else { |
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fatal("[ i80321: write to 0x%x: 0x%llx ]\n", |
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(int)relative_addr, (long long)idata); |
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} |
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} |
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|
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if (n != NULL) { |
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if (writeflag == MEM_READ) { |
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debug("[ i80321: read from %s ]\n", n); |
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} else { |
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debug("[ i80321: write to %s: 0x%llx ]\n", |
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n, (long long)idata); |
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} |
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} |
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|
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if (writeflag == MEM_READ) |
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memory_writemax64(cpu, data, len, odata); |
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|
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return 1; |
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} |
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|
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|
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/* |
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* devinit_i80321(): |
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*/ |
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int devinit_i80321(struct devinit *devinit) |
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{ |
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struct i80321_data *d = malloc(sizeof(struct i80321_data)); |
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uint32_t memsize = devinit->machine->physical_ram_in_mb * 1048576; |
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uint32_t base; |
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|
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if (d == NULL) { |
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fprintf(stderr, "out of memory\n"); |
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exit(1); |
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} |
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memset(d, 0, sizeof(struct i80321_data)); |
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|
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d->mcu_reg[MCU_SDBR / sizeof(uint32_t)] = base = 0xa0000000; |
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d->mcu_reg[MCU_SBR0 / sizeof(uint32_t)] = (base+memsize) >> 25; |
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d->mcu_reg[MCU_SBR1 / sizeof(uint32_t)] = (base+memsize) >> 25; |
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|
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memory_device_register(devinit->machine->memory, devinit->name, |
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devinit->addr, DEV_I80321_LENGTH, |
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dev_i80321_access, d, MEM_DEFAULT, NULL); |
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|
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return 1; |
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} |
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|