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-rw-r--r--hw/ppc405_uc.c509
1 files changed, 2 insertions, 507 deletions
diff --git a/hw/ppc405_uc.c b/hw/ppc405_uc.c
index 8a31475ed1..55f4bcc3d1 100644
--- a/hw/ppc405_uc.c
+++ b/hw/ppc405_uc.c
@@ -27,7 +27,6 @@
extern int loglevel;
extern FILE *logfile;
-//#define DEBUG_MMIO
#define DEBUG_OPBA
#define DEBUG_SDRAM
#define DEBUG_GPIO
@@ -36,41 +35,9 @@ extern FILE *logfile;
//#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)
{
@@ -124,203 +91,6 @@ ram_addr_t ppc405_set_bootinfo (CPUState *env, ppc4xx_bd_info_t *bd,
/* 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,
@@ -625,281 +395,6 @@ void ppc4xx_opba_init (CPUState *env, ppc4xx_mmio_t *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);
-}
-
-/*****************************************************************************/
/* Code decompression controller */
/* XXX: TODO */
@@ -3040,7 +2535,7 @@ CPUState *ppc405cr_init (target_phys_addr_t ram_bases[4],
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);
@@ -3390,7 +2885,7 @@ CPUState *ppc405ep_init (target_phys_addr_t ram_bases[2],
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;
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-21 16:24:41 +0000