#if !defined(PPC_405_H)
#define PPC_405_H
+#include "ppc4xx.h"
+
/* Bootinfo as set-up by u-boot */
typedef struct ppc4xx_bd_info_t ppc4xx_bd_info_t;
struct ppc4xx_bd_info_t {
};
/* PowerPC 405 core */
-CPUState *ppc405_init (const unsigned char *cpu_model,
- clk_setup_t *cpu_clk, clk_setup_t *tb_clk,
- uint32_t sysclk);
ram_addr_t ppc405_set_bootinfo (CPUState *env, ppc4xx_bd_info_t *bd,
uint32_t flags);
-/* */
-typedef struct ppc4xx_mmio_t ppc4xx_mmio_t;
-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);
-ppc4xx_mmio_t *ppc4xx_mmio_init (CPUState *env, target_phys_addr_t base);
/* PowerPC 4xx peripheral local bus arbitrer */
void ppc4xx_plb_init (CPUState *env);
/* PLB to OPB bridge */
/* OPB arbitrer */
void ppc4xx_opba_init (CPUState *env, ppc4xx_mmio_t *mmio,
target_phys_addr_t offset);
-/* PowerPC 4xx universal interrupt controller */
-enum {
- PPCUIC_OUTPUT_INT = 0,
- PPCUIC_OUTPUT_CINT = 1,
- PPCUIC_OUTPUT_NB,
-};
-qemu_irq *ppcuic_init (CPUState *env, qemu_irq *irqs,
- uint32_t dcr_base, int has_ssr, int has_vr);
/* SDRAM controller */
void ppc405_sdram_init (CPUState *env, qemu_irq irq, int nbanks,
target_phys_addr_t *ram_bases,
extern int loglevel;
extern FILE *logfile;
-//#define DEBUG_MMIO
#define DEBUG_OPBA
#define DEBUG_SDRAM
#define DEBUG_GPIO
//#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();
- 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_ppc_reset(env);
- 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);
- /* Register Qemu callbacks */
- qemu_register_reset(&cpu_ppc_reset, env);
- register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
-
- return env;
-}
-
ram_addr_t ppc405_set_bootinfo (CPUState *env, ppc4xx_bd_info_t *bd,
uint32_t flags)
{
/* 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,
}
/*****************************************************************************/
-/* "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 */
int i;
memset(clk_setup, 0, sizeof(clk_setup));
- env = ppc405_init("405cr", &clk_setup[PPC405CR_CPU_CLK],
+ 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);
memset(clk_setup, 0, sizeof(clk_setup));
/* init CPUs */
- env = ppc405_init("405ep", &clk_setup[PPC405EP_CPU_CLK],
+ 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;
--- /dev/null
+/*
+ * QEMU PowerPC 4xx emulation shared definitions
+ *
+ * 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.
+ */
+
+#if !defined(PPC_4XX_H)
+#define PPC_4XX_H
+
+/* PowerPC 4xx core initialization */
+CPUState *ppc4xx_init (const unsigned char *cpu_model,
+ clk_setup_t *cpu_clk, clk_setup_t *tb_clk,
+ uint32_t sysclk);
+
+typedef struct ppc4xx_mmio_t ppc4xx_mmio_t;
+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);
+ppc4xx_mmio_t *ppc4xx_mmio_init (CPUState *env, target_phys_addr_t base);
+
+/* PowerPC 4xx universal interrupt controller */
+enum {
+ PPCUIC_OUTPUT_INT = 0,
+ PPCUIC_OUTPUT_CINT = 1,
+ PPCUIC_OUTPUT_NB,
+};
+qemu_irq *ppcuic_init (CPUState *env, qemu_irq *irqs,
+ uint32_t dcr_base, int has_ssr, int has_vr);
+
+#endif /* !defined(PPC_4XX_H) */
--- /dev/null
+/*
+ * QEMU PowerPC 4xx embedded processors shared devices emulation
+ *
+ * Copyright (c) 2007 Jocelyn Mayer
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "vl.h"
+#include "ppc4xx.h"
+
+extern int loglevel;
+extern FILE *logfile;
+
+//#define DEBUG_MMIO
+#define DEBUG_UIC
+
+/*****************************************************************************/
+/* Generic PowerPC 4xx processor instanciation */
+CPUState *ppc4xx_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();
+ 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_ppc_reset(env);
+ 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);
+ /* Register qemu callbacks */
+ qemu_register_reset(&cpu_ppc_reset, env);
+ register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
+
+ return env;
+}
+
+/*****************************************************************************/
+/* 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;
+}
+
+/*****************************************************************************/
+/* "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);
+}
projects / qemu / commitdiff