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qemu-e2k/hw/ppc405_uc.c
j_mayer 9c02f1a2e6 PowerPC 405 microcontrollers fixes and improvments: 
- use target_phys_addr_t for physical addresses / offsets
- implement fake general purpose timers and memory access layer
  for PowerPC 405EP
- more assigned internal IRQs.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2716 c046a42c-6fe2-441c-8c8c-71466251a162
2007-04-24 06:37:21 +00:00

3453 lines
90 KiB
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/*
* QEMU PowerPC 405 embedded processors 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 "vl.h"
#include "ppc405.h"
extern int loglevel;
extern FILE *logfile;
//#define DEBUG_MMIO
#define DEBUG_OPBA
#define DEBUG_SDRAM
#define DEBUG_GPIO
#define DEBUG_SERIAL
#define DEBUG_OCM
//#define DEBUG_I2C
#define DEBUG_GPT
#define DEBUG_MAL
#define DEBUG_UIC
#define DEBUG_CLOCKS
//#define DEBUG_UNASSIGNED
/*****************************************************************************/
/* Generic PowerPC 405 processor instanciation */
CPUState *ppc405_init (const unsigned char *cpu_model,
clk_setup_t *cpu_clk, clk_setup_t *tb_clk,
uint32_t sysclk)
{
CPUState *env;
ppc_def_t *def;
/* init CPUs */
env = cpu_init();
qemu_register_reset(&cpu_ppc_reset, env);
register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
ppc_find_by_name(cpu_model, &def);
if (def == NULL) {
cpu_abort(env, "Unable to find PowerPC %s CPU definition\n",
cpu_model);
}
cpu_ppc_register(env, def);
cpu_clk->cb = NULL; /* We don't care about CPU clock frequency changes */
cpu_clk->opaque = env;
/* Set time-base frequency to sysclk */
tb_clk->cb = ppc_emb_timers_init(env, sysclk);
tb_clk->opaque = env;
ppc_dcr_init(env, NULL, NULL);
return env;
}
ram_addr_t ppc405_set_bootinfo (CPUState *env, ppc4xx_bd_info_t *bd)
{
ram_addr_t bdloc;
int i, n;
/* We put the bd structure at the top of memory */
bdloc = bd->bi_memsize - sizeof(struct ppc4xx_bd_info_t);
stl_raw(phys_ram_base + bdloc + 0x00, bd->bi_memstart);
stl_raw(phys_ram_base + bdloc + 0x04, bd->bi_memsize);
stl_raw(phys_ram_base + bdloc + 0x08, bd->bi_flashstart);
stl_raw(phys_ram_base + bdloc + 0x0C, bd->bi_flashsize);
stl_raw(phys_ram_base + bdloc + 0x10, bd->bi_flashoffset);
stl_raw(phys_ram_base + bdloc + 0x14, bd->bi_sramstart);
stl_raw(phys_ram_base + bdloc + 0x18, bd->bi_sramsize);
stl_raw(phys_ram_base + bdloc + 0x1C, bd->bi_bootflags);
stl_raw(phys_ram_base + bdloc + 0x20, bd->bi_ipaddr);
for (i = 0; i < 6; i++)
stb_raw(phys_ram_base + bdloc + 0x24 + i, bd->bi_enetaddr[i]);
stw_raw(phys_ram_base + bdloc + 0x2A, bd->bi_ethspeed);
stl_raw(phys_ram_base + bdloc + 0x2C, bd->bi_intfreq);
stl_raw(phys_ram_base + bdloc + 0x30, bd->bi_busfreq);
stl_raw(phys_ram_base + bdloc + 0x34, bd->bi_baudrate);
for (i = 0; i < 4; i++)
stb_raw(phys_ram_base + bdloc + 0x38 + i, bd->bi_s_version[i]);
for (i = 0; i < 32; i++)
stb_raw(phys_ram_base + bdloc + 0x3C + i, bd->bi_s_version[i]);
stl_raw(phys_ram_base + bdloc + 0x5C, bd->bi_plb_busfreq);
stl_raw(phys_ram_base + bdloc + 0x60, bd->bi_pci_busfreq);
for (i = 0; i < 6; i++)
stb_raw(phys_ram_base + bdloc + 0x64 + i, bd->bi_pci_enetaddr[i]);
n = 0x6A;
if (env->spr[SPR_PVR] == CPU_PPC_405EP) {
for (i = 0; i < 6; i++)
stb_raw(phys_ram_base + bdloc + n++, bd->bi_pci_enetaddr2[i]);
}
stl_raw(phys_ram_base + bdloc + n, bd->bi_opbfreq);
n += 4;
for (i = 0; i < 2; i++) {
stl_raw(phys_ram_base + bdloc + n, bd->bi_iic_fast[i]);
n += 4;
}
return bdloc;
}
/*****************************************************************************/
/* Shared peripherals */
/*****************************************************************************/
/* Fake device used to map multiple devices in a single memory page */
#define MMIO_AREA_BITS 8
#define MMIO_AREA_LEN (1 << MMIO_AREA_BITS)
#define MMIO_AREA_NB (1 << (TARGET_PAGE_BITS - MMIO_AREA_BITS))
#define MMIO_IDX(addr) (((addr) >> MMIO_AREA_BITS) & (MMIO_AREA_NB - 1))
struct ppc4xx_mmio_t {
target_phys_addr_t base;
CPUReadMemoryFunc **mem_read[MMIO_AREA_NB];
CPUWriteMemoryFunc **mem_write[MMIO_AREA_NB];
void *opaque[MMIO_AREA_NB];
};
static uint32_t unassigned_mmio_readb (void *opaque, target_phys_addr_t addr)
{
#ifdef DEBUG_UNASSIGNED
ppc4xx_mmio_t *mmio;
mmio = opaque;
printf("Unassigned mmio read 0x" PADDRX " base " PADDRX "\n",
addr, mmio->base);
#endif
return 0;
}
static void unassigned_mmio_writeb (void *opaque,
target_phys_addr_t addr, uint32_t val)
{
#ifdef DEBUG_UNASSIGNED
ppc4xx_mmio_t *mmio;
mmio = opaque;
printf("Unassigned mmio write 0x" PADDRX " = 0x%x base " PADDRX "\n",
addr, val, mmio->base);
#endif
}
static CPUReadMemoryFunc *unassigned_mmio_read[3] = {
unassigned_mmio_readb,
unassigned_mmio_readb,
unassigned_mmio_readb,
};
static CPUWriteMemoryFunc *unassigned_mmio_write[3] = {
unassigned_mmio_writeb,
unassigned_mmio_writeb,
unassigned_mmio_writeb,
};
static uint32_t mmio_readlen (ppc4xx_mmio_t *mmio,
target_phys_addr_t addr, int len)
{
CPUReadMemoryFunc **mem_read;
uint32_t ret;
int idx;
idx = MMIO_IDX(addr - mmio->base);
#if defined(DEBUG_MMIO)
printf("%s: mmio %p len %d addr " PADDRX " idx %d\n", __func__,
mmio, len, addr, idx);
#endif
mem_read = mmio->mem_read[idx];
ret = (*mem_read[len])(mmio->opaque[idx], addr - mmio->base);
return ret;
}
static void mmio_writelen (ppc4xx_mmio_t *mmio,
target_phys_addr_t addr, uint32_t value, int len)
{
CPUWriteMemoryFunc **mem_write;
int idx;
idx = MMIO_IDX(addr - mmio->base);
#if defined(DEBUG_MMIO)
printf("%s: mmio %p len %d addr " PADDRX " idx %d value %08x\n", __func__,
mmio, len, addr, idx, value);
#endif
mem_write = mmio->mem_write[idx];
(*mem_write[len])(mmio->opaque[idx], addr - mmio->base, value);
}
static uint32_t mmio_readb (void *opaque, target_phys_addr_t addr)
{
#if defined(DEBUG_MMIO)
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
return mmio_readlen(opaque, addr, 0);
}
static void mmio_writeb (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
#if defined(DEBUG_MMIO)
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
mmio_writelen(opaque, addr, value, 0);
}
static uint32_t mmio_readw (void *opaque, target_phys_addr_t addr)
{
#if defined(DEBUG_MMIO)
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
return mmio_readlen(opaque, addr, 1);
}
static void mmio_writew (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
#if defined(DEBUG_MMIO)
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
mmio_writelen(opaque, addr, value, 1);
}
static uint32_t mmio_readl (void *opaque, target_phys_addr_t addr)
{
#if defined(DEBUG_MMIO)
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
return mmio_readlen(opaque, addr, 2);
}
static void mmio_writel (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
#if defined(DEBUG_MMIO)
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
mmio_writelen(opaque, addr, value, 2);
}
static CPUReadMemoryFunc *mmio_read[] = {
&mmio_readb,
&mmio_readw,
&mmio_readl,
};
static CPUWriteMemoryFunc *mmio_write[] = {
&mmio_writeb,
&mmio_writew,
&mmio_writel,
};
int ppc4xx_mmio_register (CPUState *env, ppc4xx_mmio_t *mmio,
target_phys_addr_t offset, uint32_t len,
CPUReadMemoryFunc **mem_read,
CPUWriteMemoryFunc **mem_write, void *opaque)
{
uint32_t end;
int idx, eidx;
if ((offset + len) > TARGET_PAGE_SIZE)
return -1;
idx = MMIO_IDX(offset);
end = offset + len - 1;
eidx = MMIO_IDX(end);
#if defined(DEBUG_MMIO)
printf("%s: offset %08x len %08x %08x %d %d\n", __func__, offset, len,
end, idx, eidx);
#endif
for (; idx <= eidx; idx++) {
mmio->mem_read[idx] = mem_read;
mmio->mem_write[idx] = mem_write;
mmio->opaque[idx] = opaque;
}
return 0;
}
ppc4xx_mmio_t *ppc4xx_mmio_init (CPUState *env, target_phys_addr_t base)
{
ppc4xx_mmio_t *mmio;
int mmio_memory;
mmio = qemu_mallocz(sizeof(ppc4xx_mmio_t));
if (mmio != NULL) {
mmio->base = base;
mmio_memory = cpu_register_io_memory(0, mmio_read, mmio_write, mmio);
#if defined(DEBUG_MMIO)
printf("%s: %p base %08x len %08x %d\n", __func__,
mmio, base, TARGET_PAGE_SIZE, mmio_memory);
#endif
cpu_register_physical_memory(base, TARGET_PAGE_SIZE, mmio_memory);
ppc4xx_mmio_register(env, mmio, 0, TARGET_PAGE_SIZE,
unassigned_mmio_read, unassigned_mmio_write,
mmio);
}
return mmio;
}
/*****************************************************************************/
/* Peripheral local bus arbitrer */
enum {
PLB0_BESR = 0x084,
PLB0_BEAR = 0x086,
PLB0_ACR = 0x087,
};
typedef struct ppc4xx_plb_t ppc4xx_plb_t;
struct ppc4xx_plb_t {
uint32_t acr;
uint32_t bear;
uint32_t besr;
};
static target_ulong dcr_read_plb (void *opaque, int dcrn)
{
ppc4xx_plb_t *plb;
target_ulong ret;
plb = opaque;
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, target_ulong val)
{
ppc4xx_plb_t *plb;
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 ppc4xx_plb_reset (void *opaque)
{
ppc4xx_plb_t *plb;
plb = opaque;
plb->acr = 0x00000000;
plb->bear = 0x00000000;
plb->besr = 0x00000000;
}
void ppc4xx_plb_init (CPUState *env)
{
ppc4xx_plb_t *plb;
plb = qemu_mallocz(sizeof(ppc4xx_plb_t));
if (plb != NULL) {
ppc_dcr_register(env, PLB0_ACR, plb, &dcr_read_plb, &dcr_write_plb);
ppc_dcr_register(env, PLB0_BEAR, plb, &dcr_read_plb, &dcr_write_plb);
ppc_dcr_register(env, PLB0_BESR, plb, &dcr_read_plb, &dcr_write_plb);
ppc4xx_plb_reset(plb);
qemu_register_reset(ppc4xx_plb_reset, plb);
}
}
/*****************************************************************************/
/* PLB to OPB bridge */
enum {
POB0_BESR0 = 0x0A0,
POB0_BESR1 = 0x0A2,
POB0_BEAR = 0x0A4,
};
typedef struct ppc4xx_pob_t ppc4xx_pob_t;
struct ppc4xx_pob_t {
uint32_t bear;
uint32_t besr[2];
};
static target_ulong dcr_read_pob (void *opaque, int dcrn)
{
ppc4xx_pob_t *pob;
target_ulong ret;
pob = opaque;
switch (dcrn) {
case POB0_BEAR:
ret = pob->bear;
break;
case POB0_BESR0:
case POB0_BESR1:
ret = pob->besr[dcrn - POB0_BESR0];
break;
default:
/* Avoid gcc warning */
ret = 0;
break;
}
return ret;
}
static void dcr_write_pob (void *opaque, int dcrn, target_ulong val)
{
ppc4xx_pob_t *pob;
pob = opaque;
switch (dcrn) {
case POB0_BEAR:
/* Read only */
break;
case POB0_BESR0:
case POB0_BESR1:
/* Write-clear */
pob->besr[dcrn - POB0_BESR0] &= ~val;
break;
}
}
static void ppc4xx_pob_reset (void *opaque)
{
ppc4xx_pob_t *pob;
pob = opaque;
/* No error */
pob->bear = 0x00000000;
pob->besr[0] = 0x0000000;
pob->besr[1] = 0x0000000;
}
void ppc4xx_pob_init (CPUState *env)
{
ppc4xx_pob_t *pob;
pob = qemu_mallocz(sizeof(ppc4xx_pob_t));
if (pob != NULL) {
ppc_dcr_register(env, POB0_BEAR, pob, &dcr_read_pob, &dcr_write_pob);
ppc_dcr_register(env, POB0_BESR0, pob, &dcr_read_pob, &dcr_write_pob);
ppc_dcr_register(env, POB0_BESR1, pob, &dcr_read_pob, &dcr_write_pob);
qemu_register_reset(ppc4xx_pob_reset, pob);
ppc4xx_pob_reset(env);
}
}
/*****************************************************************************/
/* OPB arbitrer */
typedef struct ppc4xx_opba_t ppc4xx_opba_t;
struct ppc4xx_opba_t {
target_phys_addr_t base;
uint8_t cr;
uint8_t pr;
};
static uint32_t opba_readb (void *opaque, target_phys_addr_t addr)
{
ppc4xx_opba_t *opba;
uint32_t ret;
#ifdef DEBUG_OPBA
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
opba = opaque;
switch (addr - opba->base) {
case 0x00:
ret = opba->cr;
break;
case 0x01:
ret = opba->pr;
break;
default:
ret = 0x00;
break;
}
return ret;
}
static void opba_writeb (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
ppc4xx_opba_t *opba;
#ifdef DEBUG_OPBA
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
opba = opaque;
switch (addr - opba->base) {
case 0x00:
opba->cr = value & 0xF8;
break;
case 0x01:
opba->pr = value & 0xFF;
break;
default:
break;
}
}
static uint32_t opba_readw (void *opaque, target_phys_addr_t addr)
{
uint32_t ret;
#ifdef DEBUG_OPBA
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
ret = opba_readb(opaque, addr) << 8;
ret |= opba_readb(opaque, addr + 1);
return ret;
}
static void opba_writew (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
#ifdef DEBUG_OPBA
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
opba_writeb(opaque, addr, value >> 8);
opba_writeb(opaque, addr + 1, value);
}
static uint32_t opba_readl (void *opaque, target_phys_addr_t addr)
{
uint32_t ret;
#ifdef DEBUG_OPBA
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
ret = opba_readb(opaque, addr) << 24;
ret |= opba_readb(opaque, addr + 1) << 16;
return ret;
}
static void opba_writel (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
#ifdef DEBUG_OPBA
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
opba_writeb(opaque, addr, value >> 24);
opba_writeb(opaque, addr + 1, value >> 16);
}
static CPUReadMemoryFunc *opba_read[] = {
&opba_readb,
&opba_readw,
&opba_readl,
};
static CPUWriteMemoryFunc *opba_write[] = {
&opba_writeb,
&opba_writew,
&opba_writel,
};
static void ppc4xx_opba_reset (void *opaque)
{
ppc4xx_opba_t *opba;
opba = opaque;
opba->cr = 0x00; /* No dynamic priorities - park disabled */
opba->pr = 0x11;
}
void ppc4xx_opba_init (CPUState *env, ppc4xx_mmio_t *mmio,
target_phys_addr_t offset)
{
ppc4xx_opba_t *opba;
opba = qemu_mallocz(sizeof(ppc4xx_opba_t));
if (opba != NULL) {
opba->base = offset;
#ifdef DEBUG_OPBA
printf("%s: offset=" PADDRX "\n", __func__, offset);
#endif
ppc4xx_mmio_register(env, mmio, offset, 0x002,
opba_read, opba_write, opba);
qemu_register_reset(ppc4xx_opba_reset, opba);
ppc4xx_opba_reset(opba);
}
}
/*****************************************************************************/
/* "Universal" Interrupt controller */
enum {
DCR_UICSR = 0x000,
DCR_UICSRS = 0x001,
DCR_UICER = 0x002,
DCR_UICCR = 0x003,
DCR_UICPR = 0x004,
DCR_UICTR = 0x005,
DCR_UICMSR = 0x006,
DCR_UICVR = 0x007,
DCR_UICVCR = 0x008,
DCR_UICMAX = 0x009,
};
#define UIC_MAX_IRQ 32
typedef struct ppcuic_t ppcuic_t;
struct ppcuic_t {
uint32_t dcr_base;
int use_vectors;
uint32_t uicsr; /* Status register */
uint32_t uicer; /* Enable register */
uint32_t uiccr; /* Critical register */
uint32_t uicpr; /* Polarity register */
uint32_t uictr; /* Triggering register */
uint32_t uicvcr; /* Vector configuration register */
uint32_t uicvr;
qemu_irq *irqs;
};
static void ppcuic_trigger_irq (ppcuic_t *uic)
{
uint32_t ir, cr;
int start, end, inc, i;
/* Trigger interrupt if any is pending */
ir = uic->uicsr & uic->uicer & (~uic->uiccr);
cr = uic->uicsr & uic->uicer & uic->uiccr;
#ifdef DEBUG_UIC
if (loglevel & CPU_LOG_INT) {
fprintf(logfile, "%s: uicsr %08x uicer %08x uiccr %08x\n"
" %08x ir %08x cr %08x\n", __func__,
uic->uicsr, uic->uicer, uic->uiccr,
uic->uicsr & uic->uicer, ir, cr);
}
#endif
if (ir != 0x0000000) {
#ifdef DEBUG_UIC
if (loglevel & CPU_LOG_INT) {
fprintf(logfile, "Raise UIC interrupt\n");
}
#endif
qemu_irq_raise(uic->irqs[PPCUIC_OUTPUT_INT]);
} else {
#ifdef DEBUG_UIC
if (loglevel & CPU_LOG_INT) {
fprintf(logfile, "Lower UIC interrupt\n");
}
#endif
qemu_irq_lower(uic->irqs[PPCUIC_OUTPUT_INT]);
}
/* Trigger critical interrupt if any is pending and update vector */
if (cr != 0x0000000) {
qemu_irq_raise(uic->irqs[PPCUIC_OUTPUT_CINT]);
if (uic->use_vectors) {
/* Compute critical IRQ vector */
if (uic->uicvcr & 1) {
start = 31;
end = 0;
inc = -1;
} else {
start = 0;
end = 31;
inc = 1;
}
uic->uicvr = uic->uicvcr & 0xFFFFFFFC;
for (i = start; i <= end; i += inc) {
if (cr & (1 << i)) {
uic->uicvr += (i - start) * 512 * inc;
break;
}
}
}
#ifdef DEBUG_UIC
if (loglevel & CPU_LOG_INT) {
fprintf(logfile, "Raise UIC critical interrupt - vector %08x\n",
uic->uicvr);
}
#endif
} else {
#ifdef DEBUG_UIC
if (loglevel & CPU_LOG_INT) {
fprintf(logfile, "Lower UIC critical interrupt\n");
}
#endif
qemu_irq_lower(uic->irqs[PPCUIC_OUTPUT_CINT]);
uic->uicvr = 0x00000000;
}
}
static void ppcuic_set_irq (void *opaque, int irq_num, int level)
{
ppcuic_t *uic;
uint32_t mask, sr;
uic = opaque;
mask = 1 << irq_num;
#ifdef DEBUG_UIC
if (loglevel & CPU_LOG_INT) {
fprintf(logfile, "%s: irq %d level %d uicsr %08x mask %08x => %08x "
"%08x\n", __func__, irq_num, level,
uic->uicsr, mask, uic->uicsr & mask, level << irq_num);
}
#endif
if (irq_num < 0 || irq_num > 31)
return;
sr = uic->uicsr;
if (!(uic->uicpr & mask)) {
/* Negatively asserted IRQ */
level = level == 0 ? 1 : 0;
}
/* Update status register */
if (uic->uictr & mask) {
/* Edge sensitive interrupt */
if (level == 1)
uic->uicsr |= mask;
} else {
/* Level sensitive interrupt */
if (level == 1)
uic->uicsr |= mask;
else
uic->uicsr &= ~mask;
}
#ifdef DEBUG_UIC
if (loglevel & CPU_LOG_INT) {
fprintf(logfile, "%s: irq %d level %d sr %08x => %08x\n", __func__,
irq_num, level, uic->uicsr, sr);
}
#endif
if (sr != uic->uicsr)
ppcuic_trigger_irq(uic);
}
static target_ulong dcr_read_uic (void *opaque, int dcrn)
{
ppcuic_t *uic;
target_ulong ret;
uic = opaque;
dcrn -= uic->dcr_base;
switch (dcrn) {
case DCR_UICSR:
case DCR_UICSRS:
ret = uic->uicsr;
break;
case DCR_UICER:
ret = uic->uicer;
break;
case DCR_UICCR:
ret = uic->uiccr;
break;
case DCR_UICPR:
ret = uic->uicpr;
break;
case DCR_UICTR:
ret = uic->uictr;
break;
case DCR_UICMSR:
ret = uic->uicsr & uic->uicer;
break;
case DCR_UICVR:
if (!uic->use_vectors)
goto no_read;
ret = uic->uicvr;
break;
case DCR_UICVCR:
if (!uic->use_vectors)
goto no_read;
ret = uic->uicvcr;
break;
default:
no_read:
ret = 0x00000000;
break;
}
return ret;
}
static void dcr_write_uic (void *opaque, int dcrn, target_ulong val)
{
ppcuic_t *uic;
uic = opaque;
dcrn -= uic->dcr_base;
#ifdef DEBUG_UIC
if (loglevel & CPU_LOG_INT) {
fprintf(logfile, "%s: dcr %d val " ADDRX "\n", __func__, dcrn, val);
}
#endif
switch (dcrn) {
case DCR_UICSR:
uic->uicsr &= ~val;
ppcuic_trigger_irq(uic);
break;
case DCR_UICSRS:
uic->uicsr |= val;
ppcuic_trigger_irq(uic);
break;
case DCR_UICER:
uic->uicer = val;
ppcuic_trigger_irq(uic);
break;
case DCR_UICCR:
uic->uiccr = val;
ppcuic_trigger_irq(uic);
break;
case DCR_UICPR:
uic->uicpr = val;
ppcuic_trigger_irq(uic);
break;
case DCR_UICTR:
uic->uictr = val;
ppcuic_trigger_irq(uic);
break;
case DCR_UICMSR:
break;
case DCR_UICVR:
break;
case DCR_UICVCR:
uic->uicvcr = val & 0xFFFFFFFD;
ppcuic_trigger_irq(uic);
break;
}
}
static void ppcuic_reset (void *opaque)
{
ppcuic_t *uic;
uic = opaque;
uic->uiccr = 0x00000000;
uic->uicer = 0x00000000;
uic->uicpr = 0x00000000;
uic->uicsr = 0x00000000;
uic->uictr = 0x00000000;
if (uic->use_vectors) {
uic->uicvcr = 0x00000000;
uic->uicvr = 0x0000000;
}
}
qemu_irq *ppcuic_init (CPUState *env, qemu_irq *irqs,
uint32_t dcr_base, int has_ssr, int has_vr)
{
ppcuic_t *uic;
int i;
uic = qemu_mallocz(sizeof(ppcuic_t));
if (uic != NULL) {
uic->dcr_base = dcr_base;
uic->irqs = irqs;
if (has_vr)
uic->use_vectors = 1;
for (i = 0; i < DCR_UICMAX; i++) {
ppc_dcr_register(env, dcr_base + i, uic,
&dcr_read_uic, &dcr_write_uic);
}
qemu_register_reset(ppcuic_reset, uic);
ppcuic_reset(uic);
}
return qemu_allocate_irqs(&ppcuic_set_irq, uic, UIC_MAX_IRQ);
}
/*****************************************************************************/
/* Code decompression controller */
/* XXX: TODO */
/*****************************************************************************/
/* SDRAM controller */
typedef struct ppc4xx_sdram_t ppc4xx_sdram_t;
struct ppc4xx_sdram_t {
uint32_t addr;
int nbanks;
target_ulong ram_bases[4];
target_ulong ram_sizes[4];
uint32_t besr0;
uint32_t besr1;
uint32_t bear;
uint32_t cfg;
uint32_t status;
uint32_t rtr;
uint32_t pmit;
uint32_t bcr[4];
uint32_t tr;
uint32_t ecccfg;
uint32_t eccesr;
qemu_irq irq;
};
enum {
SDRAM0_CFGADDR = 0x010,
SDRAM0_CFGDATA = 0x011,
};
static uint32_t sdram_bcr (target_ulong ram_base, target_ulong ram_size)
{
uint32_t bcr;
switch (ram_size) {
case (4 * 1024 * 1024):
bcr = 0x00000000;
break;
case (8 * 1024 * 1024):
bcr = 0x00020000;
break;
case (16 * 1024 * 1024):
bcr = 0x00040000;
break;
case (32 * 1024 * 1024):
bcr = 0x00060000;
break;
case (64 * 1024 * 1024):
bcr = 0x00080000;
break;
case (128 * 1024 * 1024):
bcr = 0x000A0000;
break;
case (256 * 1024 * 1024):
bcr = 0x000C0000;
break;
default:
printf("%s: invalid RAM size " TARGET_FMT_ld "\n", __func__, ram_size);
return 0x00000000;
}
bcr |= ram_base & 0xFF800000;
bcr |= 1;
return bcr;
}
static inline target_ulong sdram_base (uint32_t bcr)
{
return bcr & 0xFF800000;
}
static target_ulong sdram_size (uint32_t bcr)
{
target_ulong size;
int sh;
sh = (bcr >> 17) & 0x7;
if (sh == 7)
size = -1;
else
size = (4 * 1024 * 1024) << sh;
return size;
}
static void sdram_set_bcr (uint32_t *bcrp, uint32_t bcr, int enabled)
{
if (*bcrp & 0x00000001) {
/* Unmap RAM */
#ifdef DEBUG_SDRAM
printf("%s: unmap RAM area " ADDRX " " ADDRX "\n", __func__,
sdram_base(*bcrp), sdram_size(*bcrp));
#endif
cpu_register_physical_memory(sdram_base(*bcrp), sdram_size(*bcrp),
IO_MEM_UNASSIGNED);
}
*bcrp = bcr & 0xFFDEE001;
if (enabled && (bcr & 0x00000001)) {
#ifdef DEBUG_SDRAM
printf("%s: Map RAM area " ADDRX " " ADDRX "\n", __func__,
sdram_base(bcr), sdram_size(bcr));
#endif
cpu_register_physical_memory(sdram_base(bcr), sdram_size(bcr),
sdram_base(bcr) | IO_MEM_RAM);
}
}
static void sdram_map_bcr (ppc4xx_sdram_t *sdram)
{
int i;
for (i = 0; i < sdram->nbanks; i++) {
if (sdram->ram_sizes[i] != 0) {
sdram_set_bcr(&sdram->bcr[i],
sdram_bcr(sdram->ram_bases[i], sdram->ram_sizes[i]),
1);
} else {
sdram_set_bcr(&sdram->bcr[i], 0x00000000, 0);
}
}
}
static void sdram_unmap_bcr (ppc4xx_sdram_t *sdram)
{
int i;
for (i = 0; i < sdram->nbanks; i++) {
#ifdef DEBUG_SDRAM
printf("%s: Unmap RAM area " ADDRX " " ADDRX "\n", __func__,
sdram_base(sdram->bcr[i]), sdram_size(sdram->bcr[i]));
#endif
cpu_register_physical_memory(sdram_base(sdram->bcr[i]),
sdram_size(sdram->bcr[i]),
IO_MEM_UNASSIGNED);
}
}
static target_ulong dcr_read_sdram (void *opaque, int dcrn)
{
ppc4xx_sdram_t *sdram;
target_ulong ret;
sdram = opaque;
switch (dcrn) {
case SDRAM0_CFGADDR:
ret = sdram->addr;
break;
case SDRAM0_CFGDATA:
switch (sdram->addr) {
case 0x00: /* SDRAM_BESR0 */
ret = sdram->besr0;
break;
case 0x08: /* SDRAM_BESR1 */
ret = sdram->besr1;
break;
case 0x10: /* SDRAM_BEAR */
ret = sdram->bear;
break;
case 0x20: /* SDRAM_CFG */
ret = sdram->cfg;
break;
case 0x24: /* SDRAM_STATUS */
ret = sdram->status;
break;
case 0x30: /* SDRAM_RTR */
ret = sdram->rtr;
break;
case 0x34: /* SDRAM_PMIT */
ret = sdram->pmit;
break;
case 0x40: /* SDRAM_B0CR */
ret = sdram->bcr[0];
break;
case 0x44: /* SDRAM_B1CR */
ret = sdram->bcr[1];
break;
case 0x48: /* SDRAM_B2CR */
ret = sdram->bcr[2];
break;
case 0x4C: /* SDRAM_B3CR */
ret = sdram->bcr[3];
break;
case 0x80: /* SDRAM_TR */
ret = -1; /* ? */
break;
case 0x94: /* SDRAM_ECCCFG */
ret = sdram->ecccfg;
break;
case 0x98: /* SDRAM_ECCESR */
ret = sdram->eccesr;
break;
default: /* Error */
ret = -1;
break;
}
break;
default:
/* Avoid gcc warning */
ret = 0x00000000;
break;
}
return ret;
}
static void dcr_write_sdram (void *opaque, int dcrn, target_ulong val)
{
ppc4xx_sdram_t *sdram;
sdram = opaque;
switch (dcrn) {
case SDRAM0_CFGADDR:
sdram->addr = val;
break;
case SDRAM0_CFGDATA:
switch (sdram->addr) {
case 0x00: /* SDRAM_BESR0 */
sdram->besr0 &= ~val;
break;
case 0x08: /* SDRAM_BESR1 */
sdram->besr1 &= ~val;
break;
case 0x10: /* SDRAM_BEAR */
sdram->bear = val;
break;
case 0x20: /* SDRAM_CFG */
val &= 0xFFE00000;
if (!(sdram->cfg & 0x80000000) && (val & 0x80000000)) {
#ifdef DEBUG_SDRAM
printf("%s: enable SDRAM controller\n", __func__);
#endif
/* validate all RAM mappings */
sdram_map_bcr(sdram);
sdram->status &= ~0x80000000;
} else if ((sdram->cfg & 0x80000000) && !(val & 0x80000000)) {
#ifdef DEBUG_SDRAM
printf("%s: disable SDRAM controller\n", __func__);
#endif
/* invalidate all RAM mappings */
sdram_unmap_bcr(sdram);
sdram->status |= 0x80000000;
}
if (!(sdram->cfg & 0x40000000) && (val & 0x40000000))
sdram->status |= 0x40000000;
else if ((sdram->cfg & 0x40000000) && !(val & 0x40000000))
sdram->status &= ~0x40000000;
sdram->cfg = val;
break;
case 0x24: /* SDRAM_STATUS */
/* Read-only register */
break;
case 0x30: /* SDRAM_RTR */
sdram->rtr = val & 0x3FF80000;
break;
case 0x34: /* SDRAM_PMIT */
sdram->pmit = (val & 0xF8000000) | 0x07C00000;
break;
case 0x40: /* SDRAM_B0CR */
sdram_set_bcr(&sdram->bcr[0], val, sdram->cfg & 0x80000000);
break;
case 0x44: /* SDRAM_B1CR */
sdram_set_bcr(&sdram->bcr[1], val, sdram->cfg & 0x80000000);
break;
case 0x48: /* SDRAM_B2CR */
sdram_set_bcr(&sdram->bcr[2], val, sdram->cfg & 0x80000000);
break;
case 0x4C: /* SDRAM_B3CR */
sdram_set_bcr(&sdram->bcr[3], val, sdram->cfg & 0x80000000);
break;
case 0x80: /* SDRAM_TR */
sdram->tr = val & 0x018FC01F;
break;
case 0x94: /* SDRAM_ECCCFG */
sdram->ecccfg = val & 0x00F00000;
break;
case 0x98: /* SDRAM_ECCESR */
val &= 0xFFF0F000;
if (sdram->eccesr == 0 && val != 0)
qemu_irq_raise(sdram->irq);
else if (sdram->eccesr != 0 && val == 0)
qemu_irq_lower(sdram->irq);
sdram->eccesr = val;
break;
default: /* Error */
break;
}
break;
}
}
static void sdram_reset (void *opaque)
{
ppc4xx_sdram_t *sdram;
sdram = opaque;
sdram->addr = 0x00000000;
sdram->bear = 0x00000000;
sdram->besr0 = 0x00000000; /* No error */
sdram->besr1 = 0x00000000; /* No error */
sdram->cfg = 0x00000000;
sdram->ecccfg = 0x00000000; /* No ECC */
sdram->eccesr = 0x00000000; /* No error */
sdram->pmit = 0x07C00000;
sdram->rtr = 0x05F00000;
sdram->tr = 0x00854009;
/* We pre-initialize RAM banks */
sdram->status = 0x00000000;
sdram->cfg = 0x00800000;
sdram_unmap_bcr(sdram);
}
void ppc405_sdram_init (CPUState *env, qemu_irq irq, int nbanks,
target_ulong *ram_bases, target_ulong *ram_sizes,
int do_init)
{
ppc4xx_sdram_t *sdram;
sdram = qemu_mallocz(sizeof(ppc4xx_sdram_t));
if (sdram != NULL) {
sdram->irq = irq;
sdram->nbanks = nbanks;
memset(sdram->ram_bases, 0, 4 * sizeof(target_ulong));
memcpy(sdram->ram_bases, ram_bases, nbanks * sizeof(target_ulong));
memset(sdram->ram_sizes, 0, 4 * sizeof(target_ulong));
memcpy(sdram->ram_sizes, ram_sizes, nbanks * sizeof(target_ulong));
sdram_reset(sdram);
qemu_register_reset(&sdram_reset, sdram);
ppc_dcr_register(env, SDRAM0_CFGADDR,
sdram, &dcr_read_sdram, &dcr_write_sdram);
ppc_dcr_register(env, SDRAM0_CFGDATA,
sdram, &dcr_read_sdram, &dcr_write_sdram);
if (do_init)
sdram_map_bcr(sdram);
}
}
/*****************************************************************************/
/* Peripheral controller */
typedef struct ppc4xx_ebc_t ppc4xx_ebc_t;
struct ppc4xx_ebc_t {
uint32_t addr;
uint32_t bcr[8];
uint32_t bap[8];
uint32_t bear;
uint32_t besr0;
uint32_t besr1;
uint32_t cfg;
};
enum {
EBC0_CFGADDR = 0x012,
EBC0_CFGDATA = 0x013,
};
static target_ulong dcr_read_ebc (void *opaque, int dcrn)
{
ppc4xx_ebc_t *ebc;
target_ulong ret;
ebc = opaque;
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;
}
default:
ret = 0x00000000;
break;
}
return ret;
}
static void dcr_write_ebc (void *opaque, int dcrn, target_ulong val)
{
ppc4xx_ebc_t *ebc;
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 ebc_reset (void *opaque)
{
ppc4xx_ebc_t *ebc;
int i;
ebc = opaque;
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;
}
void ppc405_ebc_init (CPUState *env)
{
ppc4xx_ebc_t *ebc;
ebc = qemu_mallocz(sizeof(ppc4xx_ebc_t));
if (ebc != NULL) {
ebc_reset(ebc);
qemu_register_reset(&ebc_reset, ebc);
ppc_dcr_register(env, EBC0_CFGADDR,
ebc, &dcr_read_ebc, &dcr_write_ebc);
ppc_dcr_register(env, EBC0_CFGDATA,
ebc, &dcr_read_ebc, &dcr_write_ebc);
}
}
/*****************************************************************************/
/* DMA controller */
enum {
DMA0_CR0 = 0x100,
DMA0_CT0 = 0x101,
DMA0_DA0 = 0x102,
DMA0_SA0 = 0x103,
DMA0_SG0 = 0x104,
DMA0_CR1 = 0x108,
DMA0_CT1 = 0x109,
DMA0_DA1 = 0x10A,
DMA0_SA1 = 0x10B,
DMA0_SG1 = 0x10C,
DMA0_CR2 = 0x110,
DMA0_CT2 = 0x111,
DMA0_DA2 = 0x112,
DMA0_SA2 = 0x113,
DMA0_SG2 = 0x114,
DMA0_CR3 = 0x118,
DMA0_CT3 = 0x119,
DMA0_DA3 = 0x11A,
DMA0_SA3 = 0x11B,
DMA0_SG3 = 0x11C,
DMA0_SR = 0x120,
DMA0_SGC = 0x123,
DMA0_SLP = 0x125,
DMA0_POL = 0x126,
};
typedef struct ppc405_dma_t ppc405_dma_t;
struct ppc405_dma_t {
qemu_irq irqs[4];
uint32_t cr[4];
uint32_t ct[4];
uint32_t da[4];
uint32_t sa[4];
uint32_t sg[4];
uint32_t sr;
uint32_t sgc;
uint32_t slp;
uint32_t pol;
};
static target_ulong dcr_read_dma (void *opaque, int dcrn)
{
ppc405_dma_t *dma;
dma = opaque;
return 0;
}
static void dcr_write_dma (void *opaque, int dcrn, target_ulong val)
{
ppc405_dma_t *dma;
dma = opaque;
}
static void ppc405_dma_reset (void *opaque)
{
ppc405_dma_t *dma;
int i;
dma = opaque;
for (i = 0; i < 4; i++) {
dma->cr[i] = 0x00000000;
dma->ct[i] = 0x00000000;
dma->da[i] = 0x00000000;
dma->sa[i] = 0x00000000;
dma->sg[i] = 0x00000000;
}
dma->sr = 0x00000000;
dma->sgc = 0x00000000;
dma->slp = 0x7C000000;
dma->pol = 0x00000000;
}
void ppc405_dma_init (CPUState *env, qemu_irq irqs[4])
{
ppc405_dma_t *dma;
dma = qemu_mallocz(sizeof(ppc405_dma_t));
if (dma != NULL) {
memcpy(dma->irqs, irqs, 4 * sizeof(qemu_irq));
ppc405_dma_reset(dma);
qemu_register_reset(&ppc405_dma_reset, dma);
ppc_dcr_register(env, DMA0_CR0,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_CT0,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_DA0,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_SA0,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_SG0,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_CR1,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_CT1,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_DA1,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_SA1,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_SG1,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_CR2,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_CT2,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_DA2,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_SA2,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_SG2,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_CR3,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_CT3,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_DA3,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_SA3,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_SG3,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_SR,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_SGC,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_SLP,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_POL,
dma, &dcr_read_dma, &dcr_write_dma);
}
}
/*****************************************************************************/
/* GPIO */
typedef struct ppc405_gpio_t ppc405_gpio_t;
struct ppc405_gpio_t {
target_phys_addr_t base;
uint32_t or;
uint32_t tcr;
uint32_t osrh;
uint32_t osrl;
uint32_t tsrh;
uint32_t tsrl;
uint32_t odr;
uint32_t ir;
uint32_t rr1;
uint32_t isr1h;
uint32_t isr1l;
};
static uint32_t ppc405_gpio_readb (void *opaque, target_phys_addr_t addr)
{
ppc405_gpio_t *gpio;
gpio = opaque;
#ifdef DEBUG_GPIO
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
return 0;
}
static void ppc405_gpio_writeb (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
ppc405_gpio_t *gpio;
gpio = opaque;
#ifdef DEBUG_GPIO
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
}
static uint32_t ppc405_gpio_readw (void *opaque, target_phys_addr_t addr)
{
ppc405_gpio_t *gpio;
gpio = opaque;
#ifdef DEBUG_GPIO
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
return 0;
}
static void ppc405_gpio_writew (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
ppc405_gpio_t *gpio;
gpio = opaque;
#ifdef DEBUG_GPIO
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
}
static uint32_t ppc405_gpio_readl (void *opaque, target_phys_addr_t addr)
{
ppc405_gpio_t *gpio;
gpio = opaque;
#ifdef DEBUG_GPIO
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
return 0;
}
static void ppc405_gpio_writel (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
ppc405_gpio_t *gpio;
gpio = opaque;
#ifdef DEBUG_GPIO
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
}
static CPUReadMemoryFunc *ppc405_gpio_read[] = {
&ppc405_gpio_readb,
&ppc405_gpio_readw,
&ppc405_gpio_readl,
};
static CPUWriteMemoryFunc *ppc405_gpio_write[] = {
&ppc405_gpio_writeb,
&ppc405_gpio_writew,
&ppc405_gpio_writel,
};
static void ppc405_gpio_reset (void *opaque)
{
ppc405_gpio_t *gpio;
gpio = opaque;
}
void ppc405_gpio_init (CPUState *env, ppc4xx_mmio_t *mmio,
target_phys_addr_t offset)
{
ppc405_gpio_t *gpio;
gpio = qemu_mallocz(sizeof(ppc405_gpio_t));
if (gpio != NULL) {
gpio->base = offset;
ppc405_gpio_reset(gpio);
qemu_register_reset(&ppc405_gpio_reset, gpio);
#ifdef DEBUG_GPIO
printf("%s: offset=" PADDRX "\n", __func__, offset);
#endif
ppc4xx_mmio_register(env, mmio, offset, 0x038,
ppc405_gpio_read, ppc405_gpio_write, gpio);
}
}
/*****************************************************************************/
/* Serial ports */
static CPUReadMemoryFunc *serial_mm_read[] = {
&serial_mm_readb,
&serial_mm_readw,
&serial_mm_readl,
};
static CPUWriteMemoryFunc *serial_mm_write[] = {
&serial_mm_writeb,
&serial_mm_writew,
&serial_mm_writel,
};
void ppc405_serial_init (CPUState *env, ppc4xx_mmio_t *mmio,
target_phys_addr_t offset, qemu_irq irq,
CharDriverState *chr)
{
void *serial;
#ifdef DEBUG_SERIAL
printf("%s: offset=" PADDRX "\n", __func__, offset);
#endif
serial = serial_mm_init(offset, 0, irq, chr, 0);
ppc4xx_mmio_register(env, mmio, offset, 0x008,
serial_mm_read, serial_mm_write, serial);
}
/*****************************************************************************/
/* On Chip Memory */
enum {
OCM0_ISARC = 0x018,
OCM0_ISACNTL = 0x019,
OCM0_DSARC = 0x01A,
OCM0_DSACNTL = 0x01B,
};
typedef struct ppc405_ocm_t ppc405_ocm_t;
struct ppc405_ocm_t {
target_ulong offset;
uint32_t isarc;
uint32_t isacntl;
uint32_t dsarc;
uint32_t dsacntl;
};
static void ocm_update_mappings (ppc405_ocm_t *ocm,
uint32_t isarc, uint32_t isacntl,
uint32_t dsarc, uint32_t dsacntl)
{
#ifdef DEBUG_OCM
printf("OCM update ISA %08x %08x (%08x %08x) DSA %08x %08x (%08x %08x)\n",
isarc, isacntl, dsarc, dsacntl,
ocm->isarc, ocm->isacntl, ocm->dsarc, ocm->dsacntl);
#endif
if (ocm->isarc != isarc ||
(ocm->isacntl & 0x80000000) != (isacntl & 0x80000000)) {
if (ocm->isacntl & 0x80000000) {
/* Unmap previously assigned memory region */
printf("OCM unmap ISA %08x\n", ocm->isarc);
cpu_register_physical_memory(ocm->isarc, 0x04000000,
IO_MEM_UNASSIGNED);
}
if (isacntl & 0x80000000) {
/* Map new instruction memory region */
#ifdef DEBUG_OCM
printf("OCM map ISA %08x\n", isarc);
#endif
cpu_register_physical_memory(isarc, 0x04000000,
ocm->offset | IO_MEM_RAM);
}
}
if (ocm->dsarc != dsarc ||
(ocm->dsacntl & 0x80000000) != (dsacntl & 0x80000000)) {
if (ocm->dsacntl & 0x80000000) {
/* Beware not to unmap the region we just mapped */
if (!(isacntl & 0x80000000) || ocm->dsarc != isarc) {
/* Unmap previously assigned memory region */
#ifdef DEBUG_OCM
printf("OCM unmap DSA %08x\n", ocm->dsarc);
#endif
cpu_register_physical_memory(ocm->dsarc, 0x04000000,
IO_MEM_UNASSIGNED);
}
}
if (dsacntl & 0x80000000) {
/* Beware not to remap the region we just mapped */
if (!(isacntl & 0x80000000) || dsarc != isarc) {
/* Map new data memory region */
#ifdef DEBUG_OCM
printf("OCM map DSA %08x\n", dsarc);
#endif
cpu_register_physical_memory(dsarc, 0x04000000,
ocm->offset | IO_MEM_RAM);
}
}
}
}
static target_ulong dcr_read_ocm (void *opaque, int dcrn)
{
ppc405_ocm_t *ocm;
target_ulong ret;
ocm = opaque;
switch (dcrn) {
case OCM0_ISARC:
ret = ocm->isarc;
break;
case OCM0_ISACNTL:
ret = ocm->isacntl;
break;
case OCM0_DSARC:
ret = ocm->dsarc;
break;
case OCM0_DSACNTL:
ret = ocm->dsacntl;
break;
default:
ret = 0;
break;
}
return ret;
}
static void dcr_write_ocm (void *opaque, int dcrn, target_ulong val)
{
ppc405_ocm_t *ocm;
uint32_t isarc, dsarc, isacntl, dsacntl;
ocm = opaque;
isarc = ocm->isarc;
dsarc = ocm->dsarc;
isacntl = ocm->isacntl;
dsacntl = ocm->dsacntl;
switch (dcrn) {
case OCM0_ISARC:
isarc = val & 0xFC000000;
break;
case OCM0_ISACNTL:
isacntl = val & 0xC0000000;
break;
case OCM0_DSARC:
isarc = val & 0xFC000000;
break;
case OCM0_DSACNTL:
isacntl = val & 0xC0000000;
break;
}
ocm_update_mappings(ocm, isarc, isacntl, dsarc, dsacntl);
ocm->isarc = isarc;
ocm->dsarc = dsarc;
ocm->isacntl = isacntl;
ocm->dsacntl = dsacntl;
}
static void ocm_reset (void *opaque)
{
ppc405_ocm_t *ocm;
uint32_t isarc, dsarc, isacntl, dsacntl;
ocm = opaque;
isarc = 0x00000000;
isacntl = 0x00000000;
dsarc = 0x00000000;
dsacntl = 0x00000000;
ocm_update_mappings(ocm, isarc, isacntl, dsarc, dsacntl);
ocm->isarc = isarc;
ocm->dsarc = dsarc;
ocm->isacntl = isacntl;
ocm->dsacntl = dsacntl;
}
void ppc405_ocm_init (CPUState *env, unsigned long offset)
{
ppc405_ocm_t *ocm;
ocm = qemu_mallocz(sizeof(ppc405_ocm_t));
if (ocm != NULL) {
ocm->offset = offset;
ocm_reset(ocm);
qemu_register_reset(&ocm_reset, ocm);
ppc_dcr_register(env, OCM0_ISARC,
ocm, &dcr_read_ocm, &dcr_write_ocm);
ppc_dcr_register(env, OCM0_ISACNTL,
ocm, &dcr_read_ocm, &dcr_write_ocm);
ppc_dcr_register(env, OCM0_DSARC,
ocm, &dcr_read_ocm, &dcr_write_ocm);
ppc_dcr_register(env, OCM0_DSACNTL,
ocm, &dcr_read_ocm, &dcr_write_ocm);
}
}
/*****************************************************************************/
/* I2C controller */
typedef struct ppc4xx_i2c_t ppc4xx_i2c_t;
struct ppc4xx_i2c_t {
target_phys_addr_t base;
qemu_irq irq;
uint8_t mdata;
uint8_t lmadr;
uint8_t hmadr;
uint8_t cntl;
uint8_t mdcntl;
uint8_t sts;
uint8_t extsts;
uint8_t sdata;
uint8_t lsadr;
uint8_t hsadr;
uint8_t clkdiv;
uint8_t intrmsk;
uint8_t xfrcnt;
uint8_t xtcntlss;
uint8_t directcntl;
};
static uint32_t ppc4xx_i2c_readb (void *opaque, target_phys_addr_t addr)
{
ppc4xx_i2c_t *i2c;
uint32_t ret;
#ifdef DEBUG_I2C
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
i2c = opaque;
switch (addr - i2c->base) {
case 0x00:
// i2c_readbyte(&i2c->mdata);
ret = i2c->mdata;
break;
case 0x02:
ret = i2c->sdata;
break;
case 0x04:
ret = i2c->lmadr;
break;
case 0x05:
ret = i2c->hmadr;
break;
case 0x06:
ret = i2c->cntl;
break;
case 0x07:
ret = i2c->mdcntl;
break;
case 0x08:
ret = i2c->sts;
break;
case 0x09:
ret = i2c->extsts;
break;
case 0x0A:
ret = i2c->lsadr;
break;
case 0x0B:
ret = i2c->hsadr;
break;
case 0x0C:
ret = i2c->clkdiv;
break;
case 0x0D:
ret = i2c->intrmsk;
break;
case 0x0E:
ret = i2c->xfrcnt;
break;
case 0x0F:
ret = i2c->xtcntlss;
break;
case 0x10:
ret = i2c->directcntl;
break;
default:
ret = 0x00;
break;
}
#ifdef DEBUG_I2C
printf("%s: addr " PADDRX " %02x\n", __func__, addr, ret);
#endif
return ret;
}
static void ppc4xx_i2c_writeb (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
ppc4xx_i2c_t *i2c;
#ifdef DEBUG_I2C
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
i2c = opaque;
switch (addr - i2c->base) {
case 0x00:
i2c->mdata = value;
// i2c_sendbyte(&i2c->mdata);
break;
case 0x02:
i2c->sdata = value;
break;
case 0x04:
i2c->lmadr = value;
break;
case 0x05:
i2c->hmadr = value;
break;
case 0x06:
i2c->cntl = value;
break;
case 0x07:
i2c->mdcntl = value & 0xDF;
break;
case 0x08:
i2c->sts &= ~(value & 0x0A);
break;
case 0x09:
i2c->extsts &= ~(value & 0x8F);
break;
case 0x0A:
i2c->lsadr = value;
break;
case 0x0B:
i2c->hsadr = value;
break;
case 0x0C:
i2c->clkdiv = value;
break;
case 0x0D:
i2c->intrmsk = value;
break;
case 0x0E:
i2c->xfrcnt = value & 0x77;
break;
case 0x0F:
i2c->xtcntlss = value;
break;
case 0x10:
i2c->directcntl = value & 0x7;
break;
}
}
static uint32_t ppc4xx_i2c_readw (void *opaque, target_phys_addr_t addr)
{
uint32_t ret;
#ifdef DEBUG_I2C
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
ret = ppc4xx_i2c_readb(opaque, addr) << 8;
ret |= ppc4xx_i2c_readb(opaque, addr + 1);
return ret;
}
static void ppc4xx_i2c_writew (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
#ifdef DEBUG_I2C
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
ppc4xx_i2c_writeb(opaque, addr, value >> 8);
ppc4xx_i2c_writeb(opaque, addr + 1, value);
}
static uint32_t ppc4xx_i2c_readl (void *opaque, target_phys_addr_t addr)
{
uint32_t ret;
#ifdef DEBUG_I2C
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
ret = ppc4xx_i2c_readb(opaque, addr) << 24;
ret |= ppc4xx_i2c_readb(opaque, addr + 1) << 16;
ret |= ppc4xx_i2c_readb(opaque, addr + 2) << 8;
ret |= ppc4xx_i2c_readb(opaque, addr + 3);
return ret;
}
static void ppc4xx_i2c_writel (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
#ifdef DEBUG_I2C
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
ppc4xx_i2c_writeb(opaque, addr, value >> 24);
ppc4xx_i2c_writeb(opaque, addr + 1, value >> 16);
ppc4xx_i2c_writeb(opaque, addr + 2, value >> 8);
ppc4xx_i2c_writeb(opaque, addr + 3, value);
}
static CPUReadMemoryFunc *i2c_read[] = {
&ppc4xx_i2c_readb,
&ppc4xx_i2c_readw,
&ppc4xx_i2c_readl,
};
static CPUWriteMemoryFunc *i2c_write[] = {
&ppc4xx_i2c_writeb,
&ppc4xx_i2c_writew,
&ppc4xx_i2c_writel,
};
static void ppc4xx_i2c_reset (void *opaque)
{
ppc4xx_i2c_t *i2c;
i2c = opaque;
i2c->mdata = 0x00;
i2c->sdata = 0x00;
i2c->cntl = 0x00;
i2c->mdcntl = 0x00;
i2c->sts = 0x00;
i2c->extsts = 0x00;
i2c->clkdiv = 0x00;
i2c->xfrcnt = 0x00;
i2c->directcntl = 0x0F;
}
void ppc405_i2c_init (CPUState *env, ppc4xx_mmio_t *mmio,
target_phys_addr_t offset, qemu_irq irq)
{
ppc4xx_i2c_t *i2c;
i2c = qemu_mallocz(sizeof(ppc4xx_i2c_t));
if (i2c != NULL) {
i2c->base = offset;
i2c->irq = irq;
ppc4xx_i2c_reset(i2c);
#ifdef DEBUG_I2C
printf("%s: offset=" PADDRX "\n", __func__, offset);
#endif
ppc4xx_mmio_register(env, mmio, offset, 0x011,
i2c_read, i2c_write, i2c);
qemu_register_reset(ppc4xx_i2c_reset, i2c);
}
}
/*****************************************************************************/
/* General purpose timers */
typedef struct ppc4xx_gpt_t ppc4xx_gpt_t;
struct ppc4xx_gpt_t {
target_phys_addr_t base;
int64_t tb_offset;
uint32_t tb_freq;
struct QEMUTimer *timer;
qemu_irq irqs[5];
uint32_t oe;
uint32_t ol;
uint32_t im;
uint32_t is;
uint32_t ie;
uint32_t comp[5];
uint32_t mask[5];
};
static uint32_t ppc4xx_gpt_readb (void *opaque, target_phys_addr_t addr)
{
#ifdef DEBUG_GPT
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
/* XXX: generate a bus fault */
return -1;
}
static void ppc4xx_gpt_writeb (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
#ifdef DEBUG_I2C
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
/* XXX: generate a bus fault */
}
static uint32_t ppc4xx_gpt_readw (void *opaque, target_phys_addr_t addr)
{
#ifdef DEBUG_GPT
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
/* XXX: generate a bus fault */
return -1;
}
static void ppc4xx_gpt_writew (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
#ifdef DEBUG_I2C
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
/* XXX: generate a bus fault */
}
static int ppc4xx_gpt_compare (ppc4xx_gpt_t *gpt, int n)
{
/* XXX: TODO */
return 0;
}
static void ppc4xx_gpt_set_output (ppc4xx_gpt_t *gpt, int n, int level)
{
/* XXX: TODO */
}
static void ppc4xx_gpt_set_outputs (ppc4xx_gpt_t *gpt)
{
uint32_t mask;
int i;
mask = 0x80000000;
for (i = 0; i < 5; i++) {
if (gpt->oe & mask) {
/* Output is enabled */
if (ppc4xx_gpt_compare(gpt, i)) {
/* Comparison is OK */
ppc4xx_gpt_set_output(gpt, i, gpt->ol & mask);
} else {
/* Comparison is KO */
ppc4xx_gpt_set_output(gpt, i, gpt->ol & mask ? 0 : 1);
}
}
mask = mask >> 1;
}
}
static void ppc4xx_gpt_set_irqs (ppc4xx_gpt_t *gpt)
{
uint32_t mask;
int i;
mask = 0x00008000;
for (i = 0; i < 5; i++) {
if (gpt->is & gpt->im & mask)
qemu_irq_raise(gpt->irqs[i]);
else
qemu_irq_lower(gpt->irqs[i]);
mask = mask >> 1;
}
}
static void ppc4xx_gpt_compute_timer (ppc4xx_gpt_t *gpt)
{
/* XXX: TODO */
}
static uint32_t ppc4xx_gpt_readl (void *opaque, target_phys_addr_t addr)
{
ppc4xx_gpt_t *gpt;
uint32_t ret;
int idx;
#ifdef DEBUG_GPT
printf("%s: addr " PADDRX "\n", __func__, addr);
#endif
gpt = opaque;
switch (addr - gpt->base) {
case 0x00:
/* Time base counter */
ret = muldiv64(qemu_get_clock(vm_clock) + gpt->tb_offset,
gpt->tb_freq, ticks_per_sec);
break;
case 0x10:
/* Output enable */
ret = gpt->oe;
break;
case 0x14:
/* Output level */
ret = gpt->ol;
break;
case 0x18:
/* Interrupt mask */
ret = gpt->im;
break;
case 0x1C:
case 0x20:
/* Interrupt status */
ret = gpt->is;
break;
case 0x24:
/* Interrupt enable */
ret = gpt->ie;
break;
case 0x80 ... 0x90:
/* Compare timer */
idx = ((addr - gpt->base) - 0x80) >> 2;
ret = gpt->comp[idx];
break;
case 0xC0 ... 0xD0:
/* Compare mask */
idx = ((addr - gpt->base) - 0xC0) >> 2;
ret = gpt->mask[idx];
break;
default:
ret = -1;
break;
}
return ret;
}
static void ppc4xx_gpt_writel (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
ppc4xx_gpt_t *gpt;
int idx;
#ifdef DEBUG_I2C
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
#endif
gpt = opaque;
switch (addr - gpt->base) {
case 0x00:
/* Time base counter */
gpt->tb_offset = muldiv64(value, ticks_per_sec, gpt->tb_freq)
- qemu_get_clock(vm_clock);
ppc4xx_gpt_compute_timer(gpt);
break;
case 0x10:
/* Output enable */
gpt->oe = value & 0xF8000000;
ppc4xx_gpt_set_outputs(gpt);
break;
case 0x14:
/* Output level */
gpt->ol = value & 0xF8000000;
ppc4xx_gpt_set_outputs(gpt);
break;
case 0x18:
/* Interrupt mask */
gpt->im = value & 0x0000F800;
break;
case 0x1C:
/* Interrupt status set */
gpt->is |= value & 0x0000F800;
ppc4xx_gpt_set_irqs(gpt);
break;
case 0x20:
/* Interrupt status clear */
gpt->is &= ~(value & 0x0000F800);
ppc4xx_gpt_set_irqs(gpt);
break;
case 0x24:
/* Interrupt enable */
gpt->ie = value & 0x0000F800;
ppc4xx_gpt_set_irqs(gpt);
break;
case 0x80 ... 0x90:
/* Compare timer */
idx = ((addr - gpt->base) - 0x80) >> 2;
gpt->comp[idx] = value & 0xF8000000;
ppc4xx_gpt_compute_timer(gpt);
break;
case 0xC0 ... 0xD0:
/* Compare mask */
idx = ((addr - gpt->base) - 0xC0) >> 2;
gpt->mask[idx] = value & 0xF8000000;
ppc4xx_gpt_compute_timer(gpt);
break;
}
}
static CPUReadMemoryFunc *gpt_read[] = {
&ppc4xx_gpt_readb,
&ppc4xx_gpt_readw,
&ppc4xx_gpt_readl,
};
static CPUWriteMemoryFunc *gpt_write[] = {
&ppc4xx_gpt_writeb,
&ppc4xx_gpt_writew,
&ppc4xx_gpt_writel,
};
static void ppc4xx_gpt_cb (void *opaque)
{
ppc4xx_gpt_t *gpt;
gpt = opaque;
ppc4xx_gpt_set_irqs(gpt);
ppc4xx_gpt_set_outputs(gpt);
ppc4xx_gpt_compute_timer(gpt);
}
static void ppc4xx_gpt_reset (void *opaque)
{
ppc4xx_gpt_t *gpt;
int i;
gpt = opaque;
qemu_del_timer(gpt->timer);
gpt->oe = 0x00000000;
gpt->ol = 0x00000000;
gpt->im = 0x00000000;
gpt->is = 0x00000000;
gpt->ie = 0x00000000;
for (i = 0; i < 5; i++) {
gpt->comp[i] = 0x00000000;
gpt->mask[i] = 0x00000000;
}
}
void ppc4xx_gpt_init (CPUState *env, ppc4xx_mmio_t *mmio,
target_phys_addr_t offset, qemu_irq irqs[5])
{
ppc4xx_gpt_t *gpt;
int i;
gpt = qemu_mallocz(sizeof(ppc4xx_gpt_t));
if (gpt != NULL) {
gpt->base = offset;
for (i = 0; i < 5; i++)
gpt->irqs[i] = irqs[i];
gpt->timer = qemu_new_timer(vm_clock, &ppc4xx_gpt_cb, gpt);
ppc4xx_gpt_reset(gpt);
#ifdef DEBUG_GPT
printf("%s: offset=" PADDRX "\n", __func__, offset);
#endif
ppc4xx_mmio_register(env, mmio, offset, 0x0D4,
gpt_read, gpt_write, gpt);
qemu_register_reset(ppc4xx_gpt_reset, gpt);
}
}
/*****************************************************************************/
/* 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_TXCTP1R = 0x1A1,
MAL0_TXCTP2R = 0x1A2,
MAL0_TXCTP3R = 0x1A3,
MAL0_RXCTP0R = 0x1C0,
MAL0_RXCTP1R = 0x1C1,
MAL0_RCBS0 = 0x1E0,
MAL0_RCBS1 = 0x1E1,
};
typedef struct ppc40x_mal_t ppc40x_mal_t;
struct ppc40x_mal_t {
qemu_irq irqs[4];
uint32_t cfg;
uint32_t esr;
uint32_t ier;
uint32_t txcasr;
uint32_t txcarr;
uint32_t txeobisr;
uint32_t txdeir;
uint32_t rxcasr;
uint32_t rxcarr;
uint32_t rxeobisr;
uint32_t rxdeir;
uint32_t txctpr[4];
uint32_t rxctpr[2];
uint32_t rcbs[2];
};
static void ppc40x_mal_reset (void *opaque);
static target_ulong dcr_read_mal (void *opaque, int dcrn)
{
ppc40x_mal_t *mal;
target_ulong ret;
mal = opaque;
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;
case MAL0_TXCTP0R:
ret = mal->txctpr[0];
break;
case MAL0_TXCTP1R:
ret = mal->txctpr[1];
break;
case MAL0_TXCTP2R:
ret = mal->txctpr[2];
break;
case MAL0_TXCTP3R:
ret = mal->txctpr[3];
break;
case MAL0_RXCTP0R:
ret = mal->rxctpr[0];
break;
case MAL0_RXCTP1R:
ret = mal->rxctpr[1];
break;
case MAL0_RCBS0:
ret = mal->rcbs[0];
break;
case MAL0_RCBS1:
ret = mal->rcbs[1];
break;
default:
ret = 0;
break;
}
return ret;
}
static void dcr_write_mal (void *opaque, int dcrn, target_ulong val)
{
ppc40x_mal_t *mal;
int idx;
mal = opaque;
switch (dcrn) {
case MAL0_CFG:
if (val & 0x80000000)
ppc40x_mal_reset(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;
case MAL0_TXCTP0R:
idx = 0;
goto update_tx_ptr;
case MAL0_TXCTP1R:
idx = 1;
goto update_tx_ptr;
case MAL0_TXCTP2R:
idx = 2;
goto update_tx_ptr;
case MAL0_TXCTP3R:
idx = 3;
update_tx_ptr:
mal->txctpr[idx] = val;
break;
case MAL0_RXCTP0R:
idx = 0;
goto update_rx_ptr;
case MAL0_RXCTP1R:
idx = 1;
update_rx_ptr:
mal->rxctpr[idx] = val;
break;
case MAL0_RCBS0:
idx = 0;
goto update_rx_size;
case MAL0_RCBS1:
idx = 1;
update_rx_size:
mal->rcbs[idx] = val & 0x000000FF;
break;
}
}
static void ppc40x_mal_reset (void *opaque)
{
ppc40x_mal_t *mal;
mal = opaque;
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;
}
void ppc405_mal_init (CPUState *env, qemu_irq irqs[4])
{
ppc40x_mal_t *mal;
int i;
mal = qemu_mallocz(sizeof(ppc40x_mal_t));
if (mal != NULL) {
for (i = 0; i < 4; i++)
mal->irqs[i] = irqs[i];
ppc40x_mal_reset(mal);
qemu_register_reset(&ppc40x_mal_reset, mal);
ppc_dcr_register(env, MAL0_CFG,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_ESR,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_IER,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_TXCASR,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_TXCARR,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_TXEOBISR,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_TXDEIR,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_RXCASR,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_RXCARR,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_RXEOBISR,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_RXDEIR,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_TXCTP0R,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_TXCTP1R,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_TXCTP2R,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_TXCTP3R,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_RXCTP0R,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_RXCTP1R,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_RCBS0,
mal, &dcr_read_mal, &dcr_write_mal);
ppc_dcr_register(env, MAL0_RCBS1,
mal, &dcr_read_mal, &dcr_write_mal);
}
}
/*****************************************************************************/
/* SPR */
void ppc40x_core_reset (CPUState *env)
{
target_ulong dbsr;
printf("Reset PowerPC core\n");
cpu_ppc_reset(env);
dbsr = env->spr[SPR_40x_DBSR];
dbsr &= ~0x00000300;
dbsr |= 0x00000100;
env->spr[SPR_40x_DBSR] = dbsr;
cpu_loop_exit();
}
void ppc40x_chip_reset (CPUState *env)
{
target_ulong dbsr;
printf("Reset PowerPC chip\n");
cpu_ppc_reset(env);
/* XXX: TODO reset all internal peripherals */
dbsr = env->spr[SPR_40x_DBSR];
dbsr &= ~0x00000300;
dbsr |= 0x00000200;
env->spr[SPR_40x_DBSR] = dbsr;
cpu_loop_exit();
}
void ppc40x_system_reset (CPUState *env)
{
printf("Reset PowerPC system\n");
qemu_system_reset_request();
}
void store_40x_dbcr0 (CPUState *env, uint32_t val)
{
switch ((val >> 28) & 0x3) {
case 0x0:
/* No action */
break;
case 0x1:
/* Core reset */
ppc40x_core_reset(env);
break;
case 0x2:
/* Chip reset */
ppc40x_chip_reset(env);
break;
case 0x3:
/* System reset */
ppc40x_system_reset(env);
break;
}
}
/*****************************************************************************/
/* PowerPC 405CR */
enum {
PPC405CR_CPC0_PLLMR = 0x0B0,
PPC405CR_CPC0_CR0 = 0x0B1,
PPC405CR_CPC0_CR1 = 0x0B2,
PPC405CR_CPC0_PSR = 0x0B4,
PPC405CR_CPC0_JTAGID = 0x0B5,
PPC405CR_CPC0_ER = 0x0B9,
PPC405CR_CPC0_FR = 0x0BA,
PPC405CR_CPC0_SR = 0x0BB,
};
enum {
PPC405CR_CPU_CLK = 0,
PPC405CR_TMR_CLK = 1,
PPC405CR_PLB_CLK = 2,
PPC405CR_SDRAM_CLK = 3,
PPC405CR_OPB_CLK = 4,
PPC405CR_EXT_CLK = 5,
PPC405CR_UART_CLK = 6,
PPC405CR_CLK_NB = 7,
};
typedef struct ppc405cr_cpc_t ppc405cr_cpc_t;
struct ppc405cr_cpc_t {
clk_setup_t clk_setup[PPC405CR_CLK_NB];
uint32_t sysclk;
uint32_t psr;
uint32_t cr0;
uint32_t cr1;
uint32_t jtagid;
uint32_t pllmr;
uint32_t er;
uint32_t fr;
};
static void ppc405cr_clk_setup (ppc405cr_cpc_t *cpc)
{
uint64_t VCO_out, PLL_out;
uint32_t CPU_clk, TMR_clk, SDRAM_clk, PLB_clk, OPB_clk, EXT_clk, UART_clk;
int M, D0, D1, D2;
D0 = ((cpc->pllmr >> 26) & 0x3) + 1; /* CBDV */
if (cpc->pllmr & 0x80000000) {
D1 = (((cpc->pllmr >> 20) - 1) & 0xF) + 1; /* FBDV */
D2 = 8 - ((cpc->pllmr >> 16) & 0x7); /* FWDVA */
M = D0 * D1 * D2;
VCO_out = cpc->sysclk * M;
if (VCO_out < 400000000 || VCO_out > 800000000) {
/* PLL cannot lock */
cpc->pllmr &= ~0x80000000;
goto bypass_pll;
}
PLL_out = VCO_out / D2;
} else {
/* Bypass PLL */
bypass_pll:
M = D0;
PLL_out = cpc->sysclk * M;
}
CPU_clk = PLL_out;
if (cpc->cr1 & 0x00800000)
TMR_clk = cpc->sysclk; /* Should have a separate clock */
else
TMR_clk = CPU_clk;
PLB_clk = CPU_clk / D0;
SDRAM_clk = PLB_clk;
D0 = ((cpc->pllmr >> 10) & 0x3) + 1;
OPB_clk = PLB_clk / D0;
D0 = ((cpc->pllmr >> 24) & 0x3) + 2;
EXT_clk = PLB_clk / D0;
D0 = ((cpc->cr0 >> 1) & 0x1F) + 1;
UART_clk = CPU_clk / D0;
/* Setup CPU clocks */
clk_setup(&cpc->clk_setup[PPC405CR_CPU_CLK], CPU_clk);
/* Setup time-base clock */
clk_setup(&cpc->clk_setup[PPC405CR_TMR_CLK], TMR_clk);
/* Setup PLB clock */
clk_setup(&cpc->clk_setup[PPC405CR_PLB_CLK], PLB_clk);
/* Setup SDRAM clock */
clk_setup(&cpc->clk_setup[PPC405CR_SDRAM_CLK], SDRAM_clk);
/* Setup OPB clock */
clk_setup(&cpc->clk_setup[PPC405CR_OPB_CLK], OPB_clk);
/* Setup external clock */
clk_setup(&cpc->clk_setup[PPC405CR_EXT_CLK], EXT_clk);
/* Setup UART clock */
clk_setup(&cpc->clk_setup[PPC405CR_UART_CLK], UART_clk);
}
static target_ulong dcr_read_crcpc (void *opaque, int dcrn)
{
ppc405cr_cpc_t *cpc;
target_ulong ret;
cpc = opaque;
switch (dcrn) {
case PPC405CR_CPC0_PLLMR:
ret = cpc->pllmr;
break;
case PPC405CR_CPC0_CR0:
ret = cpc->cr0;
break;
case PPC405CR_CPC0_CR1:
ret = cpc->cr1;
break;
case PPC405CR_CPC0_PSR:
ret = cpc->psr;
break;
case PPC405CR_CPC0_JTAGID:
ret = cpc->jtagid;
break;
case PPC405CR_CPC0_ER:
ret = cpc->er;
break;
case PPC405CR_CPC0_FR:
ret = cpc->fr;
break;
case PPC405CR_CPC0_SR:
ret = ~(cpc->er | cpc->fr) & 0xFFFF0000;
break;
default:
/* Avoid gcc warning */
ret = 0;
break;
}
return ret;
}
static void dcr_write_crcpc (void *opaque, int dcrn, target_ulong val)
{
ppc405cr_cpc_t *cpc;
cpc = opaque;
switch (dcrn) {
case PPC405CR_CPC0_PLLMR:
cpc->pllmr = val & 0xFFF77C3F;
break;
case PPC405CR_CPC0_CR0:
cpc->cr0 = val & 0x0FFFFFFE;
break;
case PPC405CR_CPC0_CR1:
cpc->cr1 = val & 0x00800000;
break;
case PPC405CR_CPC0_PSR:
/* Read-only */
break;
case PPC405CR_CPC0_JTAGID:
/* Read-only */
break;
case PPC405CR_CPC0_ER:
cpc->er = val & 0xBFFC0000;
break;
case PPC405CR_CPC0_FR:
cpc->fr = val & 0xBFFC0000;
break;
case PPC405CR_CPC0_SR:
/* Read-only */
break;
}
}
static void ppc405cr_cpc_reset (void *opaque)
{
ppc405cr_cpc_t *cpc;
int D;
cpc = opaque;
/* Compute PLLMR value from PSR settings */
cpc->pllmr = 0x80000000;
/* PFWD */
switch ((cpc->psr >> 30) & 3) {
case 0:
/* Bypass */
cpc->pllmr &= ~0x80000000;
break;
case 1:
/* Divide by 3 */
cpc->pllmr |= 5 << 16;
break;
case 2:
/* Divide by 4 */
cpc->pllmr |= 4 << 16;
break;
case 3:
/* Divide by 6 */
cpc->pllmr |= 2 << 16;
break;
}
/* PFBD */
D = (cpc->psr >> 28) & 3;
cpc->pllmr |= (D + 1) << 20;
/* PT */
D = (cpc->psr >> 25) & 7;
switch (D) {
case 0x2:
cpc->pllmr |= 0x13;
break;
case 0x4:
cpc->pllmr |= 0x15;
break;
case 0x5:
cpc->pllmr |= 0x16;
break;
default:
break;
}
/* PDC */
D = (cpc->psr >> 23) & 3;
cpc->pllmr |= D << 26;
/* ODP */
D = (cpc->psr >> 21) & 3;
cpc->pllmr |= D << 10;
/* EBPD */
D = (cpc->psr >> 17) & 3;
cpc->pllmr |= D << 24;
cpc->cr0 = 0x0000003C;
cpc->cr1 = 0x2B0D8800;
cpc->er = 0x00000000;
cpc->fr = 0x00000000;
ppc405cr_clk_setup(cpc);
}
static void ppc405cr_clk_init (ppc405cr_cpc_t *cpc)
{
int D;
/* XXX: this should be read from IO pins */
cpc->psr = 0x00000000; /* 8 bits ROM */
/* PFWD */
D = 0x2; /* Divide by 4 */
cpc->psr |= D << 30;
/* PFBD */
D = 0x1; /* Divide by 2 */
cpc->psr |= D << 28;
/* PDC */
D = 0x1; /* Divide by 2 */
cpc->psr |= D << 23;
/* PT */
D = 0x5; /* M = 16 */
cpc->psr |= D << 25;
/* ODP */
D = 0x1; /* Divide by 2 */
cpc->psr |= D << 21;
/* EBDP */
D = 0x2; /* Divide by 4 */
cpc->psr |= D << 17;
}
static void ppc405cr_cpc_init (CPUState *env, clk_setup_t clk_setup[7],
uint32_t sysclk)
{
ppc405cr_cpc_t *cpc;
cpc = qemu_mallocz(sizeof(ppc405cr_cpc_t));
if (cpc != NULL) {
memcpy(cpc->clk_setup, clk_setup,
PPC405CR_CLK_NB * sizeof(clk_setup_t));
cpc->sysclk = sysclk;
cpc->jtagid = 0x42051049;
ppc_dcr_register(env, PPC405CR_CPC0_PSR, cpc,
&dcr_read_crcpc, &dcr_write_crcpc);
ppc_dcr_register(env, PPC405CR_CPC0_CR0, cpc,
&dcr_read_crcpc, &dcr_write_crcpc);
ppc_dcr_register(env, PPC405CR_CPC0_CR1, cpc,
&dcr_read_crcpc, &dcr_write_crcpc);
ppc_dcr_register(env, PPC405CR_CPC0_JTAGID, cpc,
&dcr_read_crcpc, &dcr_write_crcpc);
ppc_dcr_register(env, PPC405CR_CPC0_PLLMR, cpc,
&dcr_read_crcpc, &dcr_write_crcpc);
ppc_dcr_register(env, PPC405CR_CPC0_ER, cpc,
&dcr_read_crcpc, &dcr_write_crcpc);
ppc_dcr_register(env, PPC405CR_CPC0_FR, cpc,
&dcr_read_crcpc, &dcr_write_crcpc);
ppc_dcr_register(env, PPC405CR_CPC0_SR, cpc,
&dcr_read_crcpc, &dcr_write_crcpc);
ppc405cr_clk_init(cpc);
qemu_register_reset(ppc405cr_cpc_reset, cpc);
ppc405cr_cpc_reset(cpc);
}
}
CPUState *ppc405cr_init (target_ulong ram_bases[4], target_ulong ram_sizes[4],
uint32_t sysclk, qemu_irq **picp,
ram_addr_t *offsetp, int do_init)
{
clk_setup_t clk_setup[PPC405CR_CLK_NB];
qemu_irq dma_irqs[4];
CPUState *env;
ppc4xx_mmio_t *mmio;
qemu_irq *pic, *irqs;
ram_addr_t offset;
int i;
memset(clk_setup, 0, sizeof(clk_setup));
env = ppc405_init("405cr", &clk_setup[PPC405CR_CPU_CLK],
&clk_setup[PPC405CR_TMR_CLK], sysclk);
/* Memory mapped devices registers */
mmio = ppc4xx_mmio_init(env, 0xEF600000);
/* PLB arbitrer */
ppc4xx_plb_init(env);
/* PLB to OPB bridge */
ppc4xx_pob_init(env);
/* OBP arbitrer */
ppc4xx_opba_init(env, mmio, 0x600);
/* Universal interrupt controller */
irqs = qemu_mallocz(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
irqs[PPCUIC_OUTPUT_INT] =
((qemu_irq *)env->irq_inputs)[PPC405_INPUT_INT];
irqs[PPCUIC_OUTPUT_CINT] =
((qemu_irq *)env->irq_inputs)[PPC405_INPUT_CINT];
pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
*picp = pic;
/* SDRAM controller */
ppc405_sdram_init(env, pic[14], 1, ram_bases, ram_sizes, do_init);
offset = 0;
for (i = 0; i < 4; i++)
offset += ram_sizes[i];
/* External bus controller */
ppc405_ebc_init(env);
/* DMA controller */
dma_irqs[0] = pic[26];
dma_irqs[1] = pic[25];
dma_irqs[2] = pic[24];
dma_irqs[3] = pic[23];
ppc405_dma_init(env, dma_irqs);
/* Serial ports */
if (serial_hds[0] != NULL) {
ppc405_serial_init(env, mmio, 0x300, pic[31], serial_hds[0]);
}
if (serial_hds[1] != NULL) {
ppc405_serial_init(env, mmio, 0x400, pic[30], serial_hds[1]);
}
/* IIC controller */
ppc405_i2c_init(env, mmio, 0x500, pic[29]);
/* GPIO */
ppc405_gpio_init(env, mmio, 0x700);
/* CPU control */
ppc405cr_cpc_init(env, clk_setup, sysclk);
*offsetp = offset;
return env;
}
/*****************************************************************************/
/* PowerPC 405EP */
/* CPU control */
enum {
PPC405EP_CPC0_PLLMR0 = 0x0F0,
PPC405EP_CPC0_BOOT = 0x0F1,
PPC405EP_CPC0_EPCTL = 0x0F3,
PPC405EP_CPC0_PLLMR1 = 0x0F4,
PPC405EP_CPC0_UCR = 0x0F5,
PPC405EP_CPC0_SRR = 0x0F6,
PPC405EP_CPC0_JTAGID = 0x0F7,
PPC405EP_CPC0_PCI = 0x0F9,
#if 0
PPC405EP_CPC0_ER = xxx,
PPC405EP_CPC0_FR = xxx,
PPC405EP_CPC0_SR = xxx,
#endif
};
enum {
PPC405EP_CPU_CLK = 0,
PPC405EP_PLB_CLK = 1,
PPC405EP_OPB_CLK = 2,
PPC405EP_EBC_CLK = 3,
PPC405EP_MAL_CLK = 4,
PPC405EP_PCI_CLK = 5,
PPC405EP_UART0_CLK = 6,
PPC405EP_UART1_CLK = 7,
PPC405EP_CLK_NB = 8,
};
typedef struct ppc405ep_cpc_t ppc405ep_cpc_t;
struct ppc405ep_cpc_t {
uint32_t sysclk;
clk_setup_t clk_setup[PPC405EP_CLK_NB];
uint32_t boot;
uint32_t epctl;
uint32_t pllmr[2];
uint32_t ucr;
uint32_t srr;
uint32_t jtagid;
uint32_t pci;
/* Clock and power management */
uint32_t er;
uint32_t fr;
uint32_t sr;
};
static void ppc405ep_compute_clocks (ppc405ep_cpc_t *cpc)
{
uint32_t CPU_clk, PLB_clk, OPB_clk, EBC_clk, MAL_clk, PCI_clk;
uint32_t UART0_clk, UART1_clk;
uint64_t VCO_out, PLL_out;
int M, D;
VCO_out = 0;
if ((cpc->pllmr[1] & 0x80000000) && !(cpc->pllmr[1] & 0x40000000)) {
M = (((cpc->pllmr[1] >> 20) - 1) & 0xF) + 1; /* FBMUL */
// printf("FBMUL %01x %d\n", (cpc->pllmr[1] >> 20) & 0xF, M);
D = 8 - ((cpc->pllmr[1] >> 16) & 0x7); /* FWDA */
// printf("FWDA %01x %d\n", (cpc->pllmr[1] >> 16) & 0x7, D);
VCO_out = cpc->sysclk * M * D;
if (VCO_out < 500000000UL || VCO_out > 1000000000UL) {
/* Error - unlock the PLL */
printf("VCO out of range %" PRIu64 "\n", VCO_out);
#if 0
cpc->pllmr[1] &= ~0x80000000;
goto pll_bypass;
#endif
}
PLL_out = VCO_out / D;
/* Pretend the PLL is locked */
cpc->boot |= 0x00000001;
} else {
#if 0
pll_bypass:
#endif
PLL_out = cpc->sysclk;
if (cpc->pllmr[1] & 0x40000000) {
/* Pretend the PLL is not locked */
cpc->boot &= ~0x00000001;
}
}
/* Now, compute all other clocks */
D = ((cpc->pllmr[0] >> 20) & 0x3) + 1; /* CCDV */
#ifdef DEBUG_CLOCKS
// printf("CCDV %01x %d\n", (cpc->pllmr[0] >> 20) & 0x3, D);
#endif
CPU_clk = PLL_out / D;
D = ((cpc->pllmr[0] >> 16) & 0x3) + 1; /* CBDV */
#ifdef DEBUG_CLOCKS
// printf("CBDV %01x %d\n", (cpc->pllmr[0] >> 16) & 0x3, D);
#endif
PLB_clk = CPU_clk / D;
D = ((cpc->pllmr[0] >> 12) & 0x3) + 1; /* OPDV */
#ifdef DEBUG_CLOCKS
// printf("OPDV %01x %d\n", (cpc->pllmr[0] >> 12) & 0x3, D);
#endif
OPB_clk = PLB_clk / D;
D = ((cpc->pllmr[0] >> 8) & 0x3) + 2; /* EPDV */
#ifdef DEBUG_CLOCKS
// printf("EPDV %01x %d\n", (cpc->pllmr[0] >> 8) & 0x3, D);
#endif
EBC_clk = PLB_clk / D;
D = ((cpc->pllmr[0] >> 4) & 0x3) + 1; /* MPDV */
#ifdef DEBUG_CLOCKS
// printf("MPDV %01x %d\n", (cpc->pllmr[0] >> 4) & 0x3, D);
#endif
MAL_clk = PLB_clk / D;
D = (cpc->pllmr[0] & 0x3) + 1; /* PPDV */
#ifdef DEBUG_CLOCKS
// printf("PPDV %01x %d\n", cpc->pllmr[0] & 0x3, D);
#endif
PCI_clk = PLB_clk / D;
D = ((cpc->ucr - 1) & 0x7F) + 1; /* U0DIV */
#ifdef DEBUG_CLOCKS
// printf("U0DIV %01x %d\n", cpc->ucr & 0x7F, D);
#endif
UART0_clk = PLL_out / D;
D = (((cpc->ucr >> 8) - 1) & 0x7F) + 1; /* U1DIV */
#ifdef DEBUG_CLOCKS
// printf("U1DIV %01x %d\n", (cpc->ucr >> 8) & 0x7F, D);
#endif
UART1_clk = PLL_out / D;
#ifdef DEBUG_CLOCKS
printf("Setup PPC405EP clocks - sysclk %d VCO %" PRIu64
" PLL out %" PRIu64 " Hz\n", cpc->sysclk, VCO_out, PLL_out);
printf("CPU %d PLB %d OPB %d EBC %d MAL %d PCI %d UART0 %d UART1 %d\n",
CPU_clk, PLB_clk, OPB_clk, EBC_clk, MAL_clk, PCI_clk,
UART0_clk, UART1_clk);
printf("CB %p opaque %p\n", cpc->clk_setup[PPC405EP_CPU_CLK].cb,
cpc->clk_setup[PPC405EP_CPU_CLK].opaque);
#endif
/* Setup CPU clocks */
clk_setup(&cpc->clk_setup[PPC405EP_CPU_CLK], CPU_clk);
/* Setup PLB clock */
clk_setup(&cpc->clk_setup[PPC405EP_PLB_CLK], PLB_clk);
/* Setup OPB clock */
clk_setup(&cpc->clk_setup[PPC405EP_OPB_CLK], OPB_clk);
/* Setup external clock */
clk_setup(&cpc->clk_setup[PPC405EP_EBC_CLK], EBC_clk);
/* Setup MAL clock */
clk_setup(&cpc->clk_setup[PPC405EP_MAL_CLK], MAL_clk);
/* Setup PCI clock */
clk_setup(&cpc->clk_setup[PPC405EP_PCI_CLK], PCI_clk);
/* Setup UART0 clock */
clk_setup(&cpc->clk_setup[PPC405EP_UART0_CLK], UART0_clk);
/* Setup UART1 clock */
clk_setup(&cpc->clk_setup[PPC405EP_UART1_CLK], UART1_clk);
}
static target_ulong dcr_read_epcpc (void *opaque, int dcrn)
{
ppc405ep_cpc_t *cpc;
target_ulong ret;
cpc = opaque;
switch (dcrn) {
case PPC405EP_CPC0_BOOT:
ret = cpc->boot;
break;
case PPC405EP_CPC0_EPCTL:
ret = cpc->epctl;
break;
case PPC405EP_CPC0_PLLMR0:
ret = cpc->pllmr[0];
break;
case PPC405EP_CPC0_PLLMR1:
ret = cpc->pllmr[1];
break;
case PPC405EP_CPC0_UCR:
ret = cpc->ucr;
break;
case PPC405EP_CPC0_SRR:
ret = cpc->srr;
break;
case PPC405EP_CPC0_JTAGID:
ret = cpc->jtagid;
break;
case PPC405EP_CPC0_PCI:
ret = cpc->pci;
break;
default:
/* Avoid gcc warning */
ret = 0;
break;
}
return ret;
}
static void dcr_write_epcpc (void *opaque, int dcrn, target_ulong val)
{
ppc405ep_cpc_t *cpc;
cpc = opaque;
switch (dcrn) {
case PPC405EP_CPC0_BOOT:
/* Read-only register */
break;
case PPC405EP_CPC0_EPCTL:
/* Don't care for now */
cpc->epctl = val & 0xC00000F3;
break;
case PPC405EP_CPC0_PLLMR0:
cpc->pllmr[0] = val & 0x00633333;
ppc405ep_compute_clocks(cpc);
break;
case PPC405EP_CPC0_PLLMR1:
cpc->pllmr[1] = val & 0xC0F73FFF;
ppc405ep_compute_clocks(cpc);
break;
case PPC405EP_CPC0_UCR:
/* UART control - don't care for now */
cpc->ucr = val & 0x003F7F7F;
break;
case PPC405EP_CPC0_SRR:
cpc->srr = val;
break;
case PPC405EP_CPC0_JTAGID:
/* Read-only */
break;
case PPC405EP_CPC0_PCI:
cpc->pci = val;
break;
}
}
static void ppc405ep_cpc_reset (void *opaque)
{
ppc405ep_cpc_t *cpc = opaque;
cpc->boot = 0x00000010; /* Boot from PCI - IIC EEPROM disabled */
cpc->epctl = 0x00000000;
cpc->pllmr[0] = 0x00011010;
cpc->pllmr[1] = 0x40000000;
cpc->ucr = 0x00000000;
cpc->srr = 0x00040000;
cpc->pci = 0x00000000;
cpc->er = 0x00000000;
cpc->fr = 0x00000000;
cpc->sr = 0x00000000;
ppc405ep_compute_clocks(cpc);
}
/* XXX: sysclk should be between 25 and 100 MHz */
static void ppc405ep_cpc_init (CPUState *env, clk_setup_t clk_setup[8],
uint32_t sysclk)
{
ppc405ep_cpc_t *cpc;
cpc = qemu_mallocz(sizeof(ppc405ep_cpc_t));
if (cpc != NULL) {
memcpy(cpc->clk_setup, clk_setup,
PPC405EP_CLK_NB * sizeof(clk_setup_t));
cpc->jtagid = 0x20267049;
cpc->sysclk = sysclk;
ppc405ep_cpc_reset(cpc);
qemu_register_reset(&ppc405ep_cpc_reset, cpc);
ppc_dcr_register(env, PPC405EP_CPC0_BOOT, cpc,
&dcr_read_epcpc, &dcr_write_epcpc);
ppc_dcr_register(env, PPC405EP_CPC0_EPCTL, cpc,
&dcr_read_epcpc, &dcr_write_epcpc);
ppc_dcr_register(env, PPC405EP_CPC0_PLLMR0, cpc,
&dcr_read_epcpc, &dcr_write_epcpc);
ppc_dcr_register(env, PPC405EP_CPC0_PLLMR1, cpc,
&dcr_read_epcpc, &dcr_write_epcpc);
ppc_dcr_register(env, PPC405EP_CPC0_UCR, cpc,
&dcr_read_epcpc, &dcr_write_epcpc);
ppc_dcr_register(env, PPC405EP_CPC0_SRR, cpc,
&dcr_read_epcpc, &dcr_write_epcpc);
ppc_dcr_register(env, PPC405EP_CPC0_JTAGID, cpc,
&dcr_read_epcpc, &dcr_write_epcpc);
ppc_dcr_register(env, PPC405EP_CPC0_PCI, cpc,
&dcr_read_epcpc, &dcr_write_epcpc);
#if 0
ppc_dcr_register(env, PPC405EP_CPC0_ER, cpc,
&dcr_read_epcpc, &dcr_write_epcpc);
ppc_dcr_register(env, PPC405EP_CPC0_FR, cpc,
&dcr_read_epcpc, &dcr_write_epcpc);
ppc_dcr_register(env, PPC405EP_CPC0_SR, cpc,
&dcr_read_epcpc, &dcr_write_epcpc);
#endif
}
}
CPUState *ppc405ep_init (target_ulong ram_bases[2], target_ulong ram_sizes[2],
uint32_t sysclk, qemu_irq **picp,
ram_addr_t *offsetp, int do_init)
{
clk_setup_t clk_setup[PPC405EP_CLK_NB], tlb_clk_setup;
qemu_irq dma_irqs[4], gpt_irqs[5], mal_irqs[4];
CPUState *env;
ppc4xx_mmio_t *mmio;
qemu_irq *pic, *irqs;
ram_addr_t offset;
int i;
memset(clk_setup, 0, sizeof(clk_setup));
/* init CPUs */
env = ppc405_init("405ep", &clk_setup[PPC405EP_CPU_CLK],
&tlb_clk_setup, sysclk);
clk_setup[PPC405EP_CPU_CLK].cb = tlb_clk_setup.cb;
clk_setup[PPC405EP_CPU_CLK].opaque = tlb_clk_setup.opaque;
/* Internal devices init */
/* Memory mapped devices registers */
mmio = ppc4xx_mmio_init(env, 0xEF600000);
/* PLB arbitrer */
ppc4xx_plb_init(env);
/* PLB to OPB bridge */
ppc4xx_pob_init(env);
/* OBP arbitrer */
ppc4xx_opba_init(env, mmio, 0x600);
/* Universal interrupt controller */
irqs = qemu_mallocz(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
irqs[PPCUIC_OUTPUT_INT] =
((qemu_irq *)env->irq_inputs)[PPC405_INPUT_INT];
irqs[PPCUIC_OUTPUT_CINT] =
((qemu_irq *)env->irq_inputs)[PPC405_INPUT_CINT];
pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
*picp = pic;
/* SDRAM controller */
ppc405_sdram_init(env, pic[14], 2, ram_bases, ram_sizes, do_init);
offset = 0;
for (i = 0; i < 2; i++)
offset += ram_sizes[i];
/* External bus controller */
ppc405_ebc_init(env);
/* DMA controller */
dma_irqs[0] = pic[26];
dma_irqs[1] = pic[25];
dma_irqs[2] = pic[24];
dma_irqs[3] = pic[23];
ppc405_dma_init(env, dma_irqs);
/* IIC controller */
ppc405_i2c_init(env, mmio, 0x500, pic[29]);
/* GPIO */
ppc405_gpio_init(env, mmio, 0x700);
/* Serial ports */
if (serial_hds[0] != NULL) {
ppc405_serial_init(env, mmio, 0x300, pic[31], serial_hds[0]);
}
if (serial_hds[1] != NULL) {
ppc405_serial_init(env, mmio, 0x400, pic[30], serial_hds[1]);
}
/* OCM */
ppc405_ocm_init(env, ram_sizes[0] + ram_sizes[1]);
offset += 4096;
/* GPT */
gpt_irqs[0] = pic[12];
gpt_irqs[1] = pic[11];
gpt_irqs[2] = pic[10];
gpt_irqs[3] = pic[9];
gpt_irqs[4] = pic[8];
ppc4xx_gpt_init(env, mmio, 0x000, gpt_irqs);
/* PCI */
/* Uses pic[28], pic[15], pic[13] */
/* MAL */
mal_irqs[0] = pic[20];
mal_irqs[1] = pic[19];
mal_irqs[2] = pic[18];
mal_irqs[3] = pic[17];
ppc405_mal_init(env, mal_irqs);
/* Ethernet */
/* Uses pic[22], pic[16], pic[14] */
/* CPU control */
ppc405ep_cpc_init(env, clk_setup, sysclk);
*offsetp = offset;
return env;
}
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