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qemu / qemu / b3e8223e48f4a8981232a17ebf48c198829ce191 / . / hw / ppc / ppc4xx_devs.c
blob: c1d111465db652f1a4c6c82d24b8ece079e40d0f [file] [log] [blame]
/*
* QEMU PowerPC 4xx embedded processors shared devices emulation
*
* Copyright (c) 2007 Jocelyn Mayer
*
* 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 "qemu/osdep.h"
#include "cpu.h"
#include "hw/ppc/ppc4xx.h"
#include "hw/qdev-properties.h"
#include "qapi/error.h"
/*****************************************************************************/
/* MAL */
enum {
MAL0_CFG = 0x180,
MAL0_ESR = 0x181,
MAL0_IER = 0x182,
MAL0_TXCASR = 0x184,
MAL0_TXCARR = 0x185,
MAL0_TXEOBISR = 0x186,
MAL0_TXDEIR = 0x187,
MAL0_RXCASR = 0x190,
MAL0_RXCARR = 0x191,
MAL0_RXEOBISR = 0x192,
MAL0_RXDEIR = 0x193,
MAL0_TXCTP0R = 0x1A0,
MAL0_RXCTP0R = 0x1C0,
MAL0_RCBS0 = 0x1E0,
MAL0_RCBS1 = 0x1E1,
};
static void ppc4xx_mal_reset(DeviceState *dev)
{
Ppc4xxMalState *mal = PPC4xx_MAL(dev);
mal->cfg = 0x0007C000;
mal->esr = 0x00000000;
mal->ier = 0x00000000;
mal->rxcasr = 0x00000000;
mal->rxdeir = 0x00000000;
mal->rxeobisr = 0x00000000;
mal->txcasr = 0x00000000;
mal->txdeir = 0x00000000;
mal->txeobisr = 0x00000000;
}
static uint32_t dcr_read_mal(void *opaque, int dcrn)
{
Ppc4xxMalState *mal = opaque;
uint32_t ret;
switch (dcrn) {
case MAL0_CFG:
ret = mal->cfg;
break;
case MAL0_ESR:
ret = mal->esr;
break;
case MAL0_IER:
ret = mal->ier;
break;
case MAL0_TXCASR:
ret = mal->txcasr;
break;
case MAL0_TXCARR:
ret = mal->txcarr;
break;
case MAL0_TXEOBISR:
ret = mal->txeobisr;
break;
case MAL0_TXDEIR:
ret = mal->txdeir;
break;
case MAL0_RXCASR:
ret = mal->rxcasr;
break;
case MAL0_RXCARR:
ret = mal->rxcarr;
break;
case MAL0_RXEOBISR:
ret = mal->rxeobisr;
break;
case MAL0_RXDEIR:
ret = mal->rxdeir;
break;
default:
ret = 0;
break;
}
if (dcrn >= MAL0_TXCTP0R && dcrn < MAL0_TXCTP0R + mal->txcnum) {
ret = mal->txctpr[dcrn - MAL0_TXCTP0R];
}
if (dcrn >= MAL0_RXCTP0R && dcrn < MAL0_RXCTP0R + mal->rxcnum) {
ret = mal->rxctpr[dcrn - MAL0_RXCTP0R];
}
if (dcrn >= MAL0_RCBS0 && dcrn < MAL0_RCBS0 + mal->rxcnum) {
ret = mal->rcbs[dcrn - MAL0_RCBS0];
}
return ret;
}
static void dcr_write_mal(void *opaque, int dcrn, uint32_t val)
{
Ppc4xxMalState *mal = opaque;
switch (dcrn) {
case MAL0_CFG:
if (val & 0x80000000) {
ppc4xx_mal_reset(DEVICE(mal));
}
mal->cfg = val & 0x00FFC087;
break;
case MAL0_ESR:
/* Read/clear */
mal->esr &= ~val;
break;
case MAL0_IER:
mal->ier = val & 0x0000001F;
break;
case MAL0_TXCASR:
mal->txcasr = val & 0xF0000000;
break;
case MAL0_TXCARR:
mal->txcarr = val & 0xF0000000;
break;
case MAL0_TXEOBISR:
/* Read/clear */
mal->txeobisr &= ~val;
break;
case MAL0_TXDEIR:
/* Read/clear */
mal->txdeir &= ~val;
break;
case MAL0_RXCASR:
mal->rxcasr = val & 0xC0000000;
break;
case MAL0_RXCARR:
mal->rxcarr = val & 0xC0000000;
break;
case MAL0_RXEOBISR:
/* Read/clear */
mal->rxeobisr &= ~val;
break;
case MAL0_RXDEIR:
/* Read/clear */
mal->rxdeir &= ~val;
break;
}
if (dcrn >= MAL0_TXCTP0R && dcrn < MAL0_TXCTP0R + mal->txcnum) {
mal->txctpr[dcrn - MAL0_TXCTP0R] = val;
}
if (dcrn >= MAL0_RXCTP0R && dcrn < MAL0_RXCTP0R + mal->rxcnum) {
mal->rxctpr[dcrn - MAL0_RXCTP0R] = val;
}
if (dcrn >= MAL0_RCBS0 && dcrn < MAL0_RCBS0 + mal->rxcnum) {
mal->rcbs[dcrn - MAL0_RCBS0] = val & 0x000000FF;
}
}
static void ppc4xx_mal_realize(DeviceState *dev, Error **errp)
{
Ppc4xxMalState *mal = PPC4xx_MAL(dev);
Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev);
int i;
if (mal->txcnum > 32 || mal->rxcnum > 32) {
error_setg(errp, "invalid TXC/RXC number");
return;
}
mal->txctpr = g_new0(uint32_t, mal->txcnum);
mal->rxctpr = g_new0(uint32_t, mal->rxcnum);
mal->rcbs = g_new0(uint32_t, mal->rxcnum);
for (i = 0; i < ARRAY_SIZE(mal->irqs); i++) {
sysbus_init_irq(SYS_BUS_DEVICE(dev), &mal->irqs[i]);
}
ppc4xx_dcr_register(dcr, MAL0_CFG, mal, &dcr_read_mal, &dcr_write_mal);
ppc4xx_dcr_register(dcr, MAL0_ESR, mal, &dcr_read_mal, &dcr_write_mal);
ppc4xx_dcr_register(dcr, MAL0_IER, mal, &dcr_read_mal, &dcr_write_mal);
ppc4xx_dcr_register(dcr, MAL0_TXCASR, mal, &dcr_read_mal, &dcr_write_mal);
ppc4xx_dcr_register(dcr, MAL0_TXCARR, mal, &dcr_read_mal, &dcr_write_mal);
ppc4xx_dcr_register(dcr, MAL0_TXEOBISR, mal, &dcr_read_mal, &dcr_write_mal);
ppc4xx_dcr_register(dcr, MAL0_TXDEIR, mal, &dcr_read_mal, &dcr_write_mal);
ppc4xx_dcr_register(dcr, MAL0_RXCASR, mal, &dcr_read_mal, &dcr_write_mal);
ppc4xx_dcr_register(dcr, MAL0_RXCARR, mal, &dcr_read_mal, &dcr_write_mal);
ppc4xx_dcr_register(dcr, MAL0_RXEOBISR, mal, &dcr_read_mal, &dcr_write_mal);
ppc4xx_dcr_register(dcr, MAL0_RXDEIR, mal, &dcr_read_mal, &dcr_write_mal);
for (i = 0; i < mal->txcnum; i++) {
ppc4xx_dcr_register(dcr, MAL0_TXCTP0R + i,
mal, &dcr_read_mal, &dcr_write_mal);
}
for (i = 0; i < mal->rxcnum; i++) {
ppc4xx_dcr_register(dcr, MAL0_RXCTP0R + i,
mal, &dcr_read_mal, &dcr_write_mal);
}
for (i = 0; i < mal->rxcnum; i++) {
ppc4xx_dcr_register(dcr, MAL0_RCBS0 + i,
mal, &dcr_read_mal, &dcr_write_mal);
}
}
static void ppc4xx_mal_finalize(Object *obj)
{
Ppc4xxMalState *mal = PPC4xx_MAL(obj);
g_free(mal->rcbs);
g_free(mal->rxctpr);
g_free(mal->txctpr);
}
static Property ppc4xx_mal_properties[] = {
DEFINE_PROP_UINT8("txc-num", Ppc4xxMalState, txcnum, 0),
DEFINE_PROP_UINT8("rxc-num", Ppc4xxMalState, rxcnum, 0),
DEFINE_PROP_END_OF_LIST(),
};
static void ppc4xx_mal_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
dc->realize = ppc4xx_mal_realize;
dc->reset = ppc4xx_mal_reset;
/* Reason: only works as function of a ppc4xx SoC */
dc->user_creatable = false;
device_class_set_props(dc, ppc4xx_mal_properties);
}
/*****************************************************************************/
/* Peripheral local bus arbitrer */
enum {
PLB3A0_ACR = 0x077,
PLB4A0_ACR = 0x081,
PLB0_BESR = 0x084,
PLB0_BEAR = 0x086,
PLB0_ACR = 0x087,
PLB4A1_ACR = 0x089,
};
static uint32_t dcr_read_plb(void *opaque, int dcrn)
{
Ppc4xxPlbState *plb = opaque;
uint32_t ret;
switch (dcrn) {
case PLB0_ACR:
ret = plb->acr;
break;
case PLB0_BEAR:
ret = plb->bear;
break;
case PLB0_BESR:
ret = plb->besr;
break;
default:
/* Avoid gcc warning */
ret = 0;
break;
}
return ret;
}
static void dcr_write_plb(void *opaque, int dcrn, uint32_t val)
{
Ppc4xxPlbState *plb = opaque;
switch (dcrn) {
case PLB0_ACR:
/*
* We don't care about the actual parameters written as
* we don't manage any priorities on the bus
*/
plb->acr = val & 0xF8000000;
break;
case PLB0_BEAR:
/* Read only */
break;
case PLB0_BESR:
/* Write-clear */
plb->besr &= ~val;
break;
}
}
static void ppc405_plb_reset(DeviceState *dev)
{
Ppc4xxPlbState *plb = PPC4xx_PLB(dev);
plb->acr = 0x00000000;
plb->bear = 0x00000000;
plb->besr = 0x00000000;
}
static void ppc405_plb_realize(DeviceState *dev, Error **errp)
{
Ppc4xxPlbState *plb = PPC4xx_PLB(dev);
Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev);
ppc4xx_dcr_register(dcr, PLB3A0_ACR, plb, &dcr_read_plb, &dcr_write_plb);
ppc4xx_dcr_register(dcr, PLB4A0_ACR, plb, &dcr_read_plb, &dcr_write_plb);
ppc4xx_dcr_register(dcr, PLB0_ACR, plb, &dcr_read_plb, &dcr_write_plb);
ppc4xx_dcr_register(dcr, PLB0_BEAR, plb, &dcr_read_plb, &dcr_write_plb);
ppc4xx_dcr_register(dcr, PLB0_BESR, plb, &dcr_read_plb, &dcr_write_plb);
ppc4xx_dcr_register(dcr, PLB4A1_ACR, plb, &dcr_read_plb, &dcr_write_plb);
}
static void ppc405_plb_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
dc->realize = ppc405_plb_realize;
dc->reset = ppc405_plb_reset;
/* Reason: only works as function of a ppc4xx SoC */
dc->user_creatable = false;
}
/*****************************************************************************/
/* Peripheral controller */
enum {
EBC0_CFGADDR = 0x012,
EBC0_CFGDATA = 0x013,
};
static uint32_t dcr_read_ebc(void *opaque, int dcrn)
{
Ppc4xxEbcState *ebc = opaque;
uint32_t ret;
switch (dcrn) {
case EBC0_CFGADDR:
ret = ebc->addr;
break;
case EBC0_CFGDATA:
switch (ebc->addr) {
case 0x00: /* B0CR */
ret = ebc->bcr[0];
break;
case 0x01: /* B1CR */
ret = ebc->bcr[1];
break;
case 0x02: /* B2CR */
ret = ebc->bcr[2];
break;
case 0x03: /* B3CR */
ret = ebc->bcr[3];
break;
case 0x04: /* B4CR */
ret = ebc->bcr[4];
break;
case 0x05: /* B5CR */
ret = ebc->bcr[5];
break;
case 0x06: /* B6CR */
ret = ebc->bcr[6];
break;
case 0x07: /* B7CR */
ret = ebc->bcr[7];
break;
case 0x10: /* B0AP */
ret = ebc->bap[0];
break;
case 0x11: /* B1AP */
ret = ebc->bap[1];
break;
case 0x12: /* B2AP */
ret = ebc->bap[2];
break;
case 0x13: /* B3AP */
ret = ebc->bap[3];
break;
case 0x14: /* B4AP */
ret = ebc->bap[4];
break;
case 0x15: /* B5AP */
ret = ebc->bap[5];
break;
case 0x16: /* B6AP */
ret = ebc->bap[6];
break;
case 0x17: /* B7AP */
ret = ebc->bap[7];
break;
case 0x20: /* BEAR */
ret = ebc->bear;
break;
case 0x21: /* BESR0 */
ret = ebc->besr0;
break;
case 0x22: /* BESR1 */
ret = ebc->besr1;
break;
case 0x23: /* CFG */
ret = ebc->cfg;
break;
default:
ret = 0x00000000;
break;
}
break;
default:
ret = 0x00000000;
break;
}
return ret;
}
static void dcr_write_ebc(void *opaque, int dcrn, uint32_t val)
{
Ppc4xxEbcState *ebc = opaque;
switch (dcrn) {
case EBC0_CFGADDR:
ebc->addr = val;
break;
case EBC0_CFGDATA:
switch (ebc->addr) {
case 0x00: /* B0CR */
break;
case 0x01: /* B1CR */
break;
case 0x02: /* B2CR */
break;
case 0x03: /* B3CR */
break;
case 0x04: /* B4CR */
break;
case 0x05: /* B5CR */
break;
case 0x06: /* B6CR */
break;
case 0x07: /* B7CR */
break;
case 0x10: /* B0AP */
break;
case 0x11: /* B1AP */
break;
case 0x12: /* B2AP */
break;
case 0x13: /* B3AP */
break;
case 0x14: /* B4AP */
break;
case 0x15: /* B5AP */
break;
case 0x16: /* B6AP */
break;
case 0x17: /* B7AP */
break;
case 0x20: /* BEAR */
break;
case 0x21: /* BESR0 */
break;
case 0x22: /* BESR1 */
break;
case 0x23: /* CFG */
break;
default:
break;
}
break;
default:
break;
}
}
static void ppc405_ebc_reset(DeviceState *dev)
{
Ppc4xxEbcState *ebc = PPC4xx_EBC(dev);
int i;
ebc->addr = 0x00000000;
ebc->bap[0] = 0x7F8FFE80;
ebc->bcr[0] = 0xFFE28000;
for (i = 0; i < 8; i++) {
ebc->bap[i] = 0x00000000;
ebc->bcr[i] = 0x00000000;
}
ebc->besr0 = 0x00000000;
ebc->besr1 = 0x00000000;
ebc->cfg = 0x80400000;
}
static void ppc405_ebc_realize(DeviceState *dev, Error **errp)
{
Ppc4xxEbcState *ebc = PPC4xx_EBC(dev);
Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev);
ppc4xx_dcr_register(dcr, EBC0_CFGADDR, ebc, &dcr_read_ebc, &dcr_write_ebc);
ppc4xx_dcr_register(dcr, EBC0_CFGDATA, ebc, &dcr_read_ebc, &dcr_write_ebc);
}
static void ppc405_ebc_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
dc->realize = ppc405_ebc_realize;
dc->reset = ppc405_ebc_reset;
/* Reason: only works as function of a ppc4xx SoC */
dc->user_creatable = false;
}
/* PPC4xx_DCR_DEVICE */
void ppc4xx_dcr_register(Ppc4xxDcrDeviceState *dev, int dcrn, void *opaque,
dcr_read_cb dcr_read, dcr_write_cb dcr_write)
{
assert(dev->cpu);
ppc_dcr_register(&dev->cpu->env, dcrn, opaque, dcr_read, dcr_write);
}
bool ppc4xx_dcr_realize(Ppc4xxDcrDeviceState *dev, PowerPCCPU *cpu,
Error **errp)
{
object_property_set_link(OBJECT(dev), "cpu", OBJECT(cpu), &error_abort);
return sysbus_realize(SYS_BUS_DEVICE(dev), errp);
}
static Property ppc4xx_dcr_properties[] = {
DEFINE_PROP_LINK("cpu", Ppc4xxDcrDeviceState, cpu, TYPE_POWERPC_CPU,
PowerPCCPU *),
DEFINE_PROP_END_OF_LIST(),
};
static void ppc4xx_dcr_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
device_class_set_props(dc, ppc4xx_dcr_properties);
}
static const TypeInfo ppc4xx_types[] = {
{
.name = TYPE_PPC4xx_MAL,
.parent = TYPE_PPC4xx_DCR_DEVICE,
.instance_size = sizeof(Ppc4xxMalState),
.instance_finalize = ppc4xx_mal_finalize,
.class_init = ppc4xx_mal_class_init,
}, {
.name = TYPE_PPC4xx_PLB,
.parent = TYPE_PPC4xx_DCR_DEVICE,
.instance_size = sizeof(Ppc4xxPlbState),
.class_init = ppc405_plb_class_init,
}, {
.name = TYPE_PPC4xx_EBC,
.parent = TYPE_PPC4xx_DCR_DEVICE,
.instance_size = sizeof(Ppc4xxEbcState),
.class_init = ppc405_ebc_class_init,
}, {
.name = TYPE_PPC4xx_DCR_DEVICE,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(Ppc4xxDcrDeviceState),
.class_init = ppc4xx_dcr_class_init,
.abstract = true,
}
};
DEFINE_TYPES(ppc4xx_types)