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qemu-e2k/hw/ppc405_uc.c
Jan Kiszka 8217606e6e Introduce reset notifier order 
Add the parameter 'order' to qemu_register_reset and sort callbacks on
registration. On system reset, callbacks with lower order will be
invoked before those with higher order. Update all existing users to the
standard order 0.

Note: At least for x86, the existing users seem to assume that handlers
are called in their registration order. Therefore, the patch preserves
this property. If someone feels bored, (s)he could try to identify this
dependency and express it properly on callback registration.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22 10:50:34 -05:00

2603 lines
67 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 "hw.h"
#include "ppc.h"
#include "ppc405.h"
#include "pc.h"
#include "qemu-timer.h"
#include "sysemu.h"
#include "qemu-log.h"
#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_CLOCKS
//#define DEBUG_CLOCKS_LL
ram_addr_t ppc405_set_bootinfo (CPUState *env, ppc4xx_bd_info_t *bd,
uint32_t flags)
{
ram_addr_t bdloc;
int i, n;
/* We put the bd structure at the top of memory */
if (bd->bi_memsize >= 0x01000000UL)
bdloc = 0x01000000UL - sizeof(struct ppc4xx_bd_info_t);
else
bdloc = bd->bi_memsize - sizeof(struct ppc4xx_bd_info_t);
stl_phys(bdloc + 0x00, bd->bi_memstart);
stl_phys(bdloc + 0x04, bd->bi_memsize);
stl_phys(bdloc + 0x08, bd->bi_flashstart);
stl_phys(bdloc + 0x0C, bd->bi_flashsize);
stl_phys(bdloc + 0x10, bd->bi_flashoffset);
stl_phys(bdloc + 0x14, bd->bi_sramstart);
stl_phys(bdloc + 0x18, bd->bi_sramsize);
stl_phys(bdloc + 0x1C, bd->bi_bootflags);
stl_phys(bdloc + 0x20, bd->bi_ipaddr);
for (i = 0; i < 6; i++)
stb_phys(bdloc + 0x24 + i, bd->bi_enetaddr[i]);
stw_phys(bdloc + 0x2A, bd->bi_ethspeed);
stl_phys(bdloc + 0x2C, bd->bi_intfreq);
stl_phys(bdloc + 0x30, bd->bi_busfreq);
stl_phys(bdloc + 0x34, bd->bi_baudrate);
for (i = 0; i < 4; i++)
stb_phys(bdloc + 0x38 + i, bd->bi_s_version[i]);
for (i = 0; i < 32; i++)
stb_phys(bdloc + 0x3C + i, bd->bi_s_version[i]);
stl_phys(bdloc + 0x5C, bd->bi_plb_busfreq);
stl_phys(bdloc + 0x60, bd->bi_pci_busfreq);
for (i = 0; i < 6; i++)
stb_phys(bdloc + 0x64 + i, bd->bi_pci_enetaddr[i]);
n = 0x6A;
if (flags & 0x00000001) {
for (i = 0; i < 6; i++)
stb_phys(bdloc + n++, bd->bi_pci_enetaddr2[i]);
}
stl_phys(bdloc + n, bd->bi_opbfreq);
n += 4;
for (i = 0; i < 2; i++) {
stl_phys(bdloc + n, bd->bi_iic_fast[i]);
n += 4;
}
return bdloc;
}
/*****************************************************************************/
/* Shared peripherals */
/*****************************************************************************/
/* 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));
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, 0, 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));
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, 0, 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 %08" PRIx32 "\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 %08" PRIx32 "\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 %08" PRIx32 "\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));
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, 0, opba);
ppc4xx_opba_reset(opba);
}
/*****************************************************************************/
/* Code decompression controller */
/* XXX: TODO */
/*****************************************************************************/
/* 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));
ebc_reset(ebc);
qemu_register_reset(&ebc_reset, 0, 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));
memcpy(dma->irqs, irqs, 4 * sizeof(qemu_irq));
ppc405_dma_reset(dma);
qemu_register_reset(&ppc405_dma_reset, 0, 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 %08" PRIx32 "\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 %08" PRIx32 "\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 %08" PRIx32 "\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));
gpio->base = offset;
ppc405_gpio_reset(gpio);
qemu_register_reset(&ppc405_gpio_reset, 0, 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, 399193, 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 %08" PRIx32 " %08" PRIx32 " (%08" PRIx32
" %08" PRIx32 ") DSA %08" PRIx32 " %08" PRIx32
" (%08" PRIx32 " %08" PRIx32 ")\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 %08" PRIx32 "\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 %08" PRIx32 "\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 %08" PRIx32 "\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 %08" PRIx32 "\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)
{
ppc405_ocm_t *ocm;
ocm = qemu_mallocz(sizeof(ppc405_ocm_t));
ocm->offset = qemu_ram_alloc(4096);
ocm_reset(ocm);
qemu_register_reset(&ocm_reset, 0, 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 " %02" PRIx32 "\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 %08" PRIx32 "\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 %08" PRIx32 "\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 %08" PRIx32 "\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));
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, 0, 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 %08" PRIx32 "\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 %08" PRIx32 "\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 %08" PRIx32 "\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));
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, 0, 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));
for (i = 0; i < 4; i++)
mal->irqs[i] = irqs[i];
ppc40x_mal_reset(mal);
qemu_register_reset(&ppc40x_mal_reset, 0, 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");
env->interrupt_request |= CPU_INTERRUPT_EXITTB;
/* XXX: TOFIX */
#if 0
cpu_ppc_reset(env);
#else
qemu_system_reset_request();
#endif
dbsr = env->spr[SPR_40x_DBSR];
dbsr &= ~0x00000300;
dbsr |= 0x00000100;
env->spr[SPR_40x_DBSR] = dbsr;
}
void ppc40x_chip_reset (CPUState *env)
{
target_ulong dbsr;
printf("Reset PowerPC chip\n");
env->interrupt_request |= CPU_INTERRUPT_EXITTB;
/* XXX: TOFIX */
#if 0
cpu_ppc_reset(env);
#else
qemu_system_reset_request();
#endif
/* XXX: TODO reset all internal peripherals */
dbsr = env->spr[SPR_40x_DBSR];
dbsr &= ~0x00000300;
dbsr |= 0x00000200;
env->spr[SPR_40x_DBSR] = dbsr;
}
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));
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, 0, cpc);
ppc405cr_cpc_reset(cpc);
}
CPUState *ppc405cr_init (target_phys_addr_t ram_bases[4],
target_phys_addr_t ram_sizes[4],
uint32_t sysclk, qemu_irq **picp,
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;
memset(clk_setup, 0, sizeof(clk_setup));
env = ppc4xx_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)[PPC40x_INPUT_INT];
irqs[PPCUIC_OUTPUT_CINT] =
((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
*picp = pic;
/* SDRAM controller */
ppc4xx_sdram_init(env, pic[14], 1, ram_bases, ram_sizes, do_init);
/* 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[0], serial_hds[0]);
}
if (serial_hds[1] != NULL) {
ppc405_serial_init(env, mmio, 0x400, pic[1], serial_hds[1]);
}
/* IIC controller */
ppc405_i2c_init(env, mmio, 0x500, pic[2]);
/* GPIO */
ppc405_gpio_init(env, mmio, 0x700);
/* CPU control */
ppc405cr_cpc_init(env, clk_setup, sysclk);
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 */
#ifdef DEBUG_CLOCKS_LL
printf("FBMUL %01" PRIx32 " %d\n", (cpc->pllmr[1] >> 20) & 0xF, M);
#endif
D = 8 - ((cpc->pllmr[1] >> 16) & 0x7); /* FWDA */
#ifdef DEBUG_CLOCKS_LL
printf("FWDA %01" PRIx32 " %d\n", (cpc->pllmr[1] >> 16) & 0x7, D);
#endif
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_LL
printf("CCDV %01" PRIx32 " %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_LL
printf("CBDV %01" PRIx32 " %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_LL
printf("OPDV %01" PRIx32 " %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_LL
printf("EPDV %01" PRIx32 " %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_LL
printf("MPDV %01" PRIx32 " %d\n", (cpc->pllmr[0] >> 4) & 0x3, D);
#endif
MAL_clk = PLB_clk / D;
D = (cpc->pllmr[0] & 0x3) + 1; /* PPDV */
#ifdef DEBUG_CLOCKS_LL
printf("PPDV %01" PRIx32 " %d\n", cpc->pllmr[0] & 0x3, D);
#endif
PCI_clk = PLB_clk / D;
D = ((cpc->ucr - 1) & 0x7F) + 1; /* U0DIV */
#ifdef DEBUG_CLOCKS_LL
printf("U0DIV %01" PRIx32 " %d\n", cpc->ucr & 0x7F, D);
#endif
UART0_clk = PLL_out / D;
D = (((cpc->ucr >> 8) - 1) & 0x7F) + 1; /* U1DIV */
#ifdef DEBUG_CLOCKS_LL
printf("U1DIV %01" PRIx32 " %d\n", (cpc->ucr >> 8) & 0x7F, D);
#endif
UART1_clk = PLL_out / D;
#ifdef DEBUG_CLOCKS
printf("Setup PPC405EP clocks - sysclk %" PRIu32 " VCO %" PRIu64
" PLL out %" PRIu64 " Hz\n", cpc->sysclk, VCO_out, PLL_out);
printf("CPU %" PRIu32 " PLB %" PRIu32 " OPB %" PRIu32 " EBC %" PRIu32
" MAL %" PRIu32 " PCI %" PRIu32 " UART0 %" PRIu32
" UART1 %" PRIu32 "\n",
CPU_clk, PLB_clk, OPB_clk, EBC_clk, MAL_clk, PCI_clk,
UART0_clk, UART1_clk);
#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));
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, 0, 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_phys_addr_t ram_bases[2],
target_phys_addr_t ram_sizes[2],
uint32_t sysclk, qemu_irq **picp,
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;
memset(clk_setup, 0, sizeof(clk_setup));
/* init CPUs */
env = ppc4xx_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)[PPC40x_INPUT_INT];
irqs[PPCUIC_OUTPUT_CINT] =
((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
*picp = pic;
/* SDRAM controller */
/* XXX 405EP has no ECC interrupt */
ppc4xx_sdram_init(env, pic[17], 2, ram_bases, ram_sizes, do_init);
/* External bus controller */
ppc405_ebc_init(env);
/* DMA controller */
dma_irqs[0] = pic[5];
dma_irqs[1] = pic[6];
dma_irqs[2] = pic[7];
dma_irqs[3] = pic[8];
ppc405_dma_init(env, dma_irqs);
/* IIC controller */
ppc405_i2c_init(env, mmio, 0x500, pic[2]);
/* GPIO */
ppc405_gpio_init(env, mmio, 0x700);
/* Serial ports */
if (serial_hds[0] != NULL) {
ppc405_serial_init(env, mmio, 0x300, pic[0], serial_hds[0]);
}
if (serial_hds[1] != NULL) {
ppc405_serial_init(env, mmio, 0x400, pic[1], serial_hds[1]);
}
/* OCM */
ppc405_ocm_init(env);
/* GPT */
gpt_irqs[0] = pic[19];
gpt_irqs[1] = pic[20];
gpt_irqs[2] = pic[21];
gpt_irqs[3] = pic[22];
gpt_irqs[4] = pic[23];
ppc4xx_gpt_init(env, mmio, 0x000, gpt_irqs);
/* PCI */
/* Uses pic[3], pic[16], pic[18] */
/* MAL */
mal_irqs[0] = pic[11];
mal_irqs[1] = pic[12];
mal_irqs[2] = pic[13];
mal_irqs[3] = pic[14];
ppc405_mal_init(env, mal_irqs);
/* Ethernet */
/* Uses pic[9], pic[15], pic[17] */
/* CPU control */
ppc405ep_cpc_init(env, clk_setup, sysclk);
return env;
}
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