703243a044
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3812 c046a42c-6fe2-441c-8c8c-71466251a162
604 lines
16 KiB
C
604 lines
16 KiB
C
/*
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* SH7750 device
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*
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* Copyright (c) 2007 Magnus Damm
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* Copyright (c) 2005 Samuel Tardieu
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <assert.h>
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#include "hw.h"
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#include "sh.h"
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#include "sysemu.h"
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#include "sh7750_regs.h"
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#include "sh7750_regnames.h"
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#include "sh_intc.h"
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#define NB_DEVICES 4
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typedef struct SH7750State {
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/* CPU */
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CPUSH4State *cpu;
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/* Peripheral frequency in Hz */
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uint32_t periph_freq;
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/* SDRAM controller */
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uint16_t rfcr;
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/* IO ports */
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uint16_t gpioic;
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uint32_t pctra;
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uint32_t pctrb;
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uint16_t portdira; /* Cached */
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uint16_t portpullupa; /* Cached */
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uint16_t portdirb; /* Cached */
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uint16_t portpullupb; /* Cached */
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uint16_t pdtra;
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uint16_t pdtrb;
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uint16_t periph_pdtra; /* Imposed by the peripherals */
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uint16_t periph_portdira; /* Direction seen from the peripherals */
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uint16_t periph_pdtrb; /* Imposed by the peripherals */
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uint16_t periph_portdirb; /* Direction seen from the peripherals */
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sh7750_io_device *devices[NB_DEVICES]; /* External peripherals */
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uint16_t icr;
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/* Cache */
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uint32_t ccr;
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struct intc_desc intc;
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} SH7750State;
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/**********************************************************************
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I/O ports
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**********************************************************************/
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int sh7750_register_io_device(SH7750State * s, sh7750_io_device * device)
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{
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int i;
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for (i = 0; i < NB_DEVICES; i++) {
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if (s->devices[i] == NULL) {
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s->devices[i] = device;
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return 0;
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}
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}
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return -1;
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}
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static uint16_t portdir(uint32_t v)
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{
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#define EVENPORTMASK(n) ((v & (1<<((n)<<1))) >> (n))
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return
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EVENPORTMASK(15) | EVENPORTMASK(14) | EVENPORTMASK(13) |
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EVENPORTMASK(12) | EVENPORTMASK(11) | EVENPORTMASK(10) |
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EVENPORTMASK(9) | EVENPORTMASK(8) | EVENPORTMASK(7) |
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EVENPORTMASK(6) | EVENPORTMASK(5) | EVENPORTMASK(4) |
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EVENPORTMASK(3) | EVENPORTMASK(2) | EVENPORTMASK(1) |
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EVENPORTMASK(0);
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}
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static uint16_t portpullup(uint32_t v)
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{
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#define ODDPORTMASK(n) ((v & (1<<(((n)<<1)+1))) >> (n))
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return
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ODDPORTMASK(15) | ODDPORTMASK(14) | ODDPORTMASK(13) |
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ODDPORTMASK(12) | ODDPORTMASK(11) | ODDPORTMASK(10) |
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ODDPORTMASK(9) | ODDPORTMASK(8) | ODDPORTMASK(7) | ODDPORTMASK(6) |
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ODDPORTMASK(5) | ODDPORTMASK(4) | ODDPORTMASK(3) | ODDPORTMASK(2) |
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ODDPORTMASK(1) | ODDPORTMASK(0);
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}
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static uint16_t porta_lines(SH7750State * s)
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{
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return (s->portdira & s->pdtra) | /* CPU */
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(s->periph_portdira & s->periph_pdtra) | /* Peripherals */
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(~(s->portdira | s->periph_portdira) & s->portpullupa); /* Pullups */
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}
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static uint16_t portb_lines(SH7750State * s)
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{
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return (s->portdirb & s->pdtrb) | /* CPU */
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(s->periph_portdirb & s->periph_pdtrb) | /* Peripherals */
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(~(s->portdirb | s->periph_portdirb) & s->portpullupb); /* Pullups */
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}
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static void gen_port_interrupts(SH7750State * s)
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{
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/* XXXXX interrupts not generated */
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}
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static void porta_changed(SH7750State * s, uint16_t prev)
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{
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uint16_t currenta, changes;
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int i, r = 0;
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#if 0
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fprintf(stderr, "porta changed from 0x%04x to 0x%04x\n",
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prev, porta_lines(s));
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fprintf(stderr, "pdtra=0x%04x, pctra=0x%08x\n", s->pdtra, s->pctra);
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#endif
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currenta = porta_lines(s);
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if (currenta == prev)
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return;
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changes = currenta ^ prev;
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for (i = 0; i < NB_DEVICES; i++) {
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if (s->devices[i] && (s->devices[i]->portamask_trigger & changes)) {
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r |= s->devices[i]->port_change_cb(currenta, portb_lines(s),
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&s->periph_pdtra,
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&s->periph_portdira,
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&s->periph_pdtrb,
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&s->periph_portdirb);
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}
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}
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if (r)
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gen_port_interrupts(s);
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}
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static void portb_changed(SH7750State * s, uint16_t prev)
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{
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uint16_t currentb, changes;
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int i, r = 0;
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currentb = portb_lines(s);
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if (currentb == prev)
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return;
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changes = currentb ^ prev;
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for (i = 0; i < NB_DEVICES; i++) {
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if (s->devices[i] && (s->devices[i]->portbmask_trigger & changes)) {
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r |= s->devices[i]->port_change_cb(portb_lines(s), currentb,
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&s->periph_pdtra,
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&s->periph_portdira,
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&s->periph_pdtrb,
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&s->periph_portdirb);
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}
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}
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if (r)
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gen_port_interrupts(s);
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}
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/**********************************************************************
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Memory
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**********************************************************************/
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static void error_access(const char *kind, target_phys_addr_t addr)
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{
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fprintf(stderr, "%s to %s (0x%08x) not supported\n",
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kind, regname(addr), addr);
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}
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static void ignore_access(const char *kind, target_phys_addr_t addr)
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{
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fprintf(stderr, "%s to %s (0x%08x) ignored\n",
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kind, regname(addr), addr);
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}
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static uint32_t sh7750_mem_readb(void *opaque, target_phys_addr_t addr)
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{
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switch (addr) {
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default:
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error_access("byte read", addr);
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assert(0);
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}
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}
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static uint32_t sh7750_mem_readw(void *opaque, target_phys_addr_t addr)
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{
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SH7750State *s = opaque;
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switch (addr) {
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case SH7750_FRQCR_A7:
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return 0;
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case SH7750_RFCR_A7:
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fprintf(stderr,
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"Read access to refresh count register, incrementing\n");
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return s->rfcr++;
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case SH7750_PDTRA_A7:
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return porta_lines(s);
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case SH7750_PDTRB_A7:
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return portb_lines(s);
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case 0x1fd00000:
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return s->icr;
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default:
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error_access("word read", addr);
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assert(0);
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}
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}
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static uint32_t sh7750_mem_readl(void *opaque, target_phys_addr_t addr)
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{
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SH7750State *s = opaque;
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switch (addr) {
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case SH7750_MMUCR_A7:
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return s->cpu->mmucr;
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case SH7750_PTEH_A7:
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return s->cpu->pteh;
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case SH7750_PTEL_A7:
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return s->cpu->ptel;
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case SH7750_TTB_A7:
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return s->cpu->ttb;
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case SH7750_TEA_A7:
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return s->cpu->tea;
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case SH7750_TRA_A7:
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return s->cpu->tra;
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case SH7750_EXPEVT_A7:
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return s->cpu->expevt;
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case SH7750_INTEVT_A7:
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return s->cpu->intevt;
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case SH7750_CCR_A7:
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return s->ccr;
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case 0x1f000030: /* Processor version PVR */
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return 0x00050000; /* SH7750R */
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case 0x1f000040: /* Processor version CVR */
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return 0x00110000; /* Minimum caches */
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case 0x1f000044: /* Processor version PRR */
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return 0x00000100; /* SH7750R */
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default:
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error_access("long read", addr);
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assert(0);
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}
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}
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static void sh7750_mem_writeb(void *opaque, target_phys_addr_t addr,
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uint32_t mem_value)
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{
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switch (addr) {
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/* PRECHARGE ? XXXXX */
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case SH7750_PRECHARGE0_A7:
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case SH7750_PRECHARGE1_A7:
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ignore_access("byte write", addr);
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return;
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default:
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error_access("byte write", addr);
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assert(0);
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}
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}
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static void sh7750_mem_writew(void *opaque, target_phys_addr_t addr,
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uint32_t mem_value)
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{
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SH7750State *s = opaque;
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uint16_t temp;
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switch (addr) {
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/* SDRAM controller */
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case SH7750_BCR2_A7:
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case SH7750_BCR3_A7:
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case SH7750_RTCOR_A7:
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case SH7750_RTCNT_A7:
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case SH7750_RTCSR_A7:
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ignore_access("word write", addr);
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return;
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/* IO ports */
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case SH7750_PDTRA_A7:
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temp = porta_lines(s);
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s->pdtra = mem_value;
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porta_changed(s, temp);
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return;
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case SH7750_PDTRB_A7:
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temp = portb_lines(s);
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s->pdtrb = mem_value;
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portb_changed(s, temp);
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return;
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case SH7750_RFCR_A7:
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fprintf(stderr, "Write access to refresh count register\n");
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s->rfcr = mem_value;
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return;
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case SH7750_GPIOIC_A7:
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s->gpioic = mem_value;
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if (mem_value != 0) {
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fprintf(stderr, "I/O interrupts not implemented\n");
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assert(0);
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}
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return;
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case 0x1fd00000:
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s->icr = mem_value;
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return;
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default:
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error_access("word write", addr);
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assert(0);
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}
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}
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static void sh7750_mem_writel(void *opaque, target_phys_addr_t addr,
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uint32_t mem_value)
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{
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SH7750State *s = opaque;
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uint16_t temp;
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switch (addr) {
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/* SDRAM controller */
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case SH7750_BCR1_A7:
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case SH7750_BCR4_A7:
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case SH7750_WCR1_A7:
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case SH7750_WCR2_A7:
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case SH7750_WCR3_A7:
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case SH7750_MCR_A7:
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ignore_access("long write", addr);
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return;
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/* IO ports */
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case SH7750_PCTRA_A7:
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temp = porta_lines(s);
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s->pctra = mem_value;
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s->portdira = portdir(mem_value);
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s->portpullupa = portpullup(mem_value);
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porta_changed(s, temp);
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return;
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case SH7750_PCTRB_A7:
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temp = portb_lines(s);
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s->pctrb = mem_value;
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s->portdirb = portdir(mem_value);
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s->portpullupb = portpullup(mem_value);
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portb_changed(s, temp);
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return;
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case SH7750_MMUCR_A7:
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s->cpu->mmucr = mem_value;
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return;
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case SH7750_PTEH_A7:
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s->cpu->pteh = mem_value;
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return;
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case SH7750_PTEL_A7:
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s->cpu->ptel = mem_value;
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return;
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case SH7750_TTB_A7:
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s->cpu->ttb = mem_value;
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return;
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case SH7750_TEA_A7:
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s->cpu->tea = mem_value;
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return;
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case SH7750_TRA_A7:
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s->cpu->tra = mem_value & 0x000007ff;
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return;
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case SH7750_EXPEVT_A7:
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s->cpu->expevt = mem_value & 0x000007ff;
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return;
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case SH7750_INTEVT_A7:
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s->cpu->intevt = mem_value & 0x000007ff;
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return;
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case SH7750_CCR_A7:
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s->ccr = mem_value;
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return;
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default:
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error_access("long write", addr);
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assert(0);
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}
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}
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static CPUReadMemoryFunc *sh7750_mem_read[] = {
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sh7750_mem_readb,
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sh7750_mem_readw,
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sh7750_mem_readl
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};
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static CPUWriteMemoryFunc *sh7750_mem_write[] = {
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sh7750_mem_writeb,
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sh7750_mem_writew,
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sh7750_mem_writel
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};
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/* sh775x interrupt controller tables for sh_intc.c
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* stolen from linux/arch/sh/kernel/cpu/sh4/setup-sh7750.c
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*/
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enum {
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UNUSED = 0,
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/* interrupt sources */
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IRL0, IRL1, IRL2, IRL3, /* only IRLM mode supported */
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HUDI, GPIOI,
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DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2, DMAC_DMTE3,
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DMAC_DMTE4, DMAC_DMTE5, DMAC_DMTE6, DMAC_DMTE7,
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DMAC_DMAE,
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PCIC0_PCISERR, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
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PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3,
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TMU3, TMU4, TMU0, TMU1, TMU2_TUNI, TMU2_TICPI,
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RTC_ATI, RTC_PRI, RTC_CUI,
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SCI1_ERI, SCI1_RXI, SCI1_TXI, SCI1_TEI,
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SCIF_ERI, SCIF_RXI, SCIF_BRI, SCIF_TXI,
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WDT,
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REF_RCMI, REF_ROVI,
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/* interrupt groups */
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DMAC, PCIC1, TMU2, RTC, SCI1, SCIF, REF,
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NR_SOURCES,
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};
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static struct intc_vect vectors[] = {
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INTC_VECT(HUDI, 0x600), INTC_VECT(GPIOI, 0x620),
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INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
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INTC_VECT(TMU2_TUNI, 0x440), INTC_VECT(TMU2_TICPI, 0x460),
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INTC_VECT(RTC_ATI, 0x480), INTC_VECT(RTC_PRI, 0x4a0),
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INTC_VECT(RTC_CUI, 0x4c0),
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INTC_VECT(SCI1_ERI, 0x4e0), INTC_VECT(SCI1_RXI, 0x500),
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INTC_VECT(SCI1_TXI, 0x520), INTC_VECT(SCI1_TEI, 0x540),
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INTC_VECT(SCIF_ERI, 0x700), INTC_VECT(SCIF_RXI, 0x720),
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INTC_VECT(SCIF_BRI, 0x740), INTC_VECT(SCIF_TXI, 0x760),
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INTC_VECT(WDT, 0x560),
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INTC_VECT(REF_RCMI, 0x580), INTC_VECT(REF_ROVI, 0x5a0),
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};
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static struct intc_group groups[] = {
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INTC_GROUP(TMU2, TMU2_TUNI, TMU2_TICPI),
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INTC_GROUP(RTC, RTC_ATI, RTC_PRI, RTC_CUI),
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INTC_GROUP(SCI1, SCI1_ERI, SCI1_RXI, SCI1_TXI, SCI1_TEI),
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INTC_GROUP(SCIF, SCIF_ERI, SCIF_RXI, SCIF_BRI, SCIF_TXI),
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INTC_GROUP(REF, REF_RCMI, REF_ROVI),
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};
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static struct intc_prio_reg prio_registers[] = {
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{ 0xffd00004, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
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{ 0xffd00008, 0, 16, 4, /* IPRB */ { WDT, REF, SCI1, 0 } },
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{ 0xffd0000c, 0, 16, 4, /* IPRC */ { GPIOI, DMAC, SCIF, HUDI } },
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{ 0xffd00010, 0, 16, 4, /* IPRD */ { IRL0, IRL1, IRL2, IRL3 } },
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{ 0xfe080000, 0, 32, 4, /* INTPRI00 */ { 0, 0, 0, 0,
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TMU4, TMU3,
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PCIC1, PCIC0_PCISERR } },
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};
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/* SH7750, SH7750S, SH7751 and SH7091 all have 4-channel DMA controllers */
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static struct intc_vect vectors_dma4[] = {
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INTC_VECT(DMAC_DMTE0, 0x640), INTC_VECT(DMAC_DMTE1, 0x660),
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INTC_VECT(DMAC_DMTE2, 0x680), INTC_VECT(DMAC_DMTE3, 0x6a0),
|
|
INTC_VECT(DMAC_DMAE, 0x6c0),
|
|
};
|
|
|
|
static struct intc_group groups_dma4[] = {
|
|
INTC_GROUP(DMAC, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2,
|
|
DMAC_DMTE3, DMAC_DMAE),
|
|
};
|
|
|
|
/* SH7750R and SH7751R both have 8-channel DMA controllers */
|
|
|
|
static struct intc_vect vectors_dma8[] = {
|
|
INTC_VECT(DMAC_DMTE0, 0x640), INTC_VECT(DMAC_DMTE1, 0x660),
|
|
INTC_VECT(DMAC_DMTE2, 0x680), INTC_VECT(DMAC_DMTE3, 0x6a0),
|
|
INTC_VECT(DMAC_DMTE4, 0x780), INTC_VECT(DMAC_DMTE5, 0x7a0),
|
|
INTC_VECT(DMAC_DMTE6, 0x7c0), INTC_VECT(DMAC_DMTE7, 0x7e0),
|
|
INTC_VECT(DMAC_DMAE, 0x6c0),
|
|
};
|
|
|
|
static struct intc_group groups_dma8[] = {
|
|
INTC_GROUP(DMAC, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2,
|
|
DMAC_DMTE3, DMAC_DMTE4, DMAC_DMTE5,
|
|
DMAC_DMTE6, DMAC_DMTE7, DMAC_DMAE),
|
|
};
|
|
|
|
/* SH7750R, SH7751 and SH7751R all have two extra timer channels */
|
|
|
|
static struct intc_vect vectors_tmu34[] = {
|
|
INTC_VECT(TMU3, 0xb00), INTC_VECT(TMU4, 0xb80),
|
|
};
|
|
|
|
static struct intc_mask_reg mask_registers[] = {
|
|
{ 0xfe080040, 0xfe080060, 32, /* INTMSK00 / INTMSKCLR00 */
|
|
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, TMU4, TMU3,
|
|
PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
|
|
PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2,
|
|
PCIC1_PCIDMA3, PCIC0_PCISERR } },
|
|
};
|
|
|
|
/* SH7750S, SH7750R, SH7751 and SH7751R all have IRLM priority registers */
|
|
|
|
static struct intc_vect vectors_irlm[] = {
|
|
INTC_VECT(IRL0, 0x240), INTC_VECT(IRL1, 0x2a0),
|
|
INTC_VECT(IRL2, 0x300), INTC_VECT(IRL3, 0x360),
|
|
};
|
|
|
|
/* SH7751 and SH7751R both have PCI */
|
|
|
|
static struct intc_vect vectors_pci[] = {
|
|
INTC_VECT(PCIC0_PCISERR, 0xa00), INTC_VECT(PCIC1_PCIERR, 0xae0),
|
|
INTC_VECT(PCIC1_PCIPWDWN, 0xac0), INTC_VECT(PCIC1_PCIPWON, 0xaa0),
|
|
INTC_VECT(PCIC1_PCIDMA0, 0xa80), INTC_VECT(PCIC1_PCIDMA1, 0xa60),
|
|
INTC_VECT(PCIC1_PCIDMA2, 0xa40), INTC_VECT(PCIC1_PCIDMA3, 0xa20),
|
|
};
|
|
|
|
static struct intc_group groups_pci[] = {
|
|
INTC_GROUP(PCIC1, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
|
|
PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3),
|
|
};
|
|
|
|
#define SH_CPU_SH7750 (1 << 0)
|
|
#define SH_CPU_SH7750S (1 << 1)
|
|
#define SH_CPU_SH7750R (1 << 2)
|
|
#define SH_CPU_SH7751 (1 << 3)
|
|
#define SH_CPU_SH7751R (1 << 4)
|
|
#define SH_CPU_SH7750_ALL (SH_CPU_SH7750 | SH_CPU_SH7750S | SH_CPU_SH7750R)
|
|
#define SH_CPU_SH7751_ALL (SH_CPU_SH7751 | SH_CPU_SH7751R)
|
|
|
|
SH7750State *sh7750_init(CPUSH4State * cpu)
|
|
{
|
|
SH7750State *s;
|
|
int sh7750_io_memory;
|
|
int cpu_model = SH_CPU_SH7751R; /* for now */
|
|
|
|
s = qemu_mallocz(sizeof(SH7750State));
|
|
s->cpu = cpu;
|
|
s->periph_freq = 60000000; /* 60MHz */
|
|
sh7750_io_memory = cpu_register_io_memory(0,
|
|
sh7750_mem_read,
|
|
sh7750_mem_write, s);
|
|
cpu_register_physical_memory(0x1c000000, 0x04000000, sh7750_io_memory);
|
|
|
|
sh_intc_init(&s->intc, NR_SOURCES,
|
|
_INTC_ARRAY(mask_registers),
|
|
_INTC_ARRAY(prio_registers));
|
|
|
|
sh_intc_register_sources(&s->intc,
|
|
_INTC_ARRAY(vectors),
|
|
_INTC_ARRAY(groups));
|
|
|
|
cpu->intc_handle = &s->intc;
|
|
|
|
sh_serial_init(0x1fe00000, 0, s->periph_freq, serial_hds[0]);
|
|
sh_serial_init(0x1fe80000, SH_SERIAL_FEAT_SCIF,
|
|
s->periph_freq, serial_hds[1]);
|
|
|
|
tmu012_init(0x1fd80000,
|
|
TMU012_FEAT_TOCR | TMU012_FEAT_3CHAN | TMU012_FEAT_EXTCLK,
|
|
s->periph_freq,
|
|
sh_intc_source(&s->intc, TMU0),
|
|
sh_intc_source(&s->intc, TMU1),
|
|
sh_intc_source(&s->intc, TMU2_TUNI),
|
|
sh_intc_source(&s->intc, TMU2_TICPI));
|
|
|
|
if (cpu_model & (SH_CPU_SH7750 | SH_CPU_SH7750S | SH_CPU_SH7751)) {
|
|
sh_intc_register_sources(&s->intc,
|
|
_INTC_ARRAY(vectors_dma4),
|
|
_INTC_ARRAY(groups_dma4));
|
|
}
|
|
|
|
if (cpu_model & (SH_CPU_SH7750R | SH_CPU_SH7751R)) {
|
|
sh_intc_register_sources(&s->intc,
|
|
_INTC_ARRAY(vectors_dma8),
|
|
_INTC_ARRAY(groups_dma8));
|
|
}
|
|
|
|
if (cpu_model & (SH_CPU_SH7750R | SH_CPU_SH7751 | SH_CPU_SH7751R)) {
|
|
sh_intc_register_sources(&s->intc,
|
|
_INTC_ARRAY(vectors_tmu34),
|
|
NULL, 0);
|
|
tmu012_init(0x1e100000, 0, s->periph_freq,
|
|
sh_intc_source(&s->intc, TMU3),
|
|
sh_intc_source(&s->intc, TMU4),
|
|
NULL, NULL);
|
|
}
|
|
|
|
if (cpu_model & (SH_CPU_SH7751_ALL)) {
|
|
sh_intc_register_sources(&s->intc,
|
|
_INTC_ARRAY(vectors_pci),
|
|
_INTC_ARRAY(groups_pci));
|
|
}
|
|
|
|
if (cpu_model & (SH_CPU_SH7750S | SH_CPU_SH7750R | SH_CPU_SH7751_ALL)) {
|
|
sh_intc_register_sources(&s->intc,
|
|
_INTC_ARRAY(vectors_irlm),
|
|
NULL, 0);
|
|
}
|
|
|
|
return s;
|
|
}
|