| /* |
| * 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" |
| #include "exec-memory.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_be_phys(bdloc + 0x00, bd->bi_memstart); |
| stl_be_phys(bdloc + 0x04, bd->bi_memsize); |
| stl_be_phys(bdloc + 0x08, bd->bi_flashstart); |
| stl_be_phys(bdloc + 0x0C, bd->bi_flashsize); |
| stl_be_phys(bdloc + 0x10, bd->bi_flashoffset); |
| stl_be_phys(bdloc + 0x14, bd->bi_sramstart); |
| stl_be_phys(bdloc + 0x18, bd->bi_sramsize); |
| stl_be_phys(bdloc + 0x1C, bd->bi_bootflags); |
| stl_be_phys(bdloc + 0x20, bd->bi_ipaddr); |
| for (i = 0; i < 6; i++) { |
| stb_phys(bdloc + 0x24 + i, bd->bi_enetaddr[i]); |
| } |
| stw_be_phys(bdloc + 0x2A, bd->bi_ethspeed); |
| stl_be_phys(bdloc + 0x2C, bd->bi_intfreq); |
| stl_be_phys(bdloc + 0x30, bd->bi_busfreq); |
| stl_be_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_r_version[i]); |
| } |
| stl_be_phys(bdloc + 0x5C, bd->bi_plb_busfreq); |
| stl_be_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_be_phys(bdloc + n, bd->bi_opbfreq); |
| n += 4; |
| for (i = 0; i < 2; i++) { |
| stl_be_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 uint32_t dcr_read_plb (void *opaque, int dcrn) |
| { |
| ppc4xx_plb_t *plb; |
| uint32_t 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, uint32_t 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; |
| } |
| |
| static void ppc4xx_plb_init(CPUState *env) |
| { |
| ppc4xx_plb_t *plb; |
| |
| plb = g_malloc0(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); |
| qemu_register_reset(ppc4xx_plb_reset, plb); |
| } |
| |
| /*****************************************************************************/ |
| /* PLB to OPB bridge */ |
| enum { |
| POB0_BESR0 = 0x0A0, |
| POB0_BESR1 = 0x0A2, |
| POB0_BEAR = 0x0A4, |
| }; |
| |
| typedef struct ppc4xx_pob_t ppc4xx_pob_t; |
| struct ppc4xx_pob_t { |
| uint32_t bear; |
| uint32_t besr[2]; |
| }; |
| |
| static uint32_t dcr_read_pob (void *opaque, int dcrn) |
| { |
| ppc4xx_pob_t *pob; |
| uint32_t 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, uint32_t 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; |
| } |
| |
| static void ppc4xx_pob_init(CPUState *env) |
| { |
| ppc4xx_pob_t *pob; |
| |
| pob = g_malloc0(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, pob); |
| } |
| |
| /*****************************************************************************/ |
| /* OPB arbitrer */ |
| typedef struct ppc4xx_opba_t ppc4xx_opba_t; |
| struct ppc4xx_opba_t { |
| MemoryRegion io; |
| 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 " TARGET_FMT_plx "\n", __func__, addr); |
| #endif |
| opba = opaque; |
| switch (addr) { |
| 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 " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr, |
| value); |
| #endif |
| opba = opaque; |
| switch (addr) { |
| 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 " TARGET_FMT_plx "\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 " TARGET_FMT_plx " 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 " TARGET_FMT_plx "\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 " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr, |
| value); |
| #endif |
| opba_writeb(opaque, addr, value >> 24); |
| opba_writeb(opaque, addr + 1, value >> 16); |
| } |
| |
| static const MemoryRegionOps opba_ops = { |
| .old_mmio = { |
| .read = { opba_readb, opba_readw, opba_readl, }, |
| .write = { opba_writeb, opba_writew, opba_writel, }, |
| }, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| }; |
| |
| static void ppc4xx_opba_reset (void *opaque) |
| { |
| ppc4xx_opba_t *opba; |
| |
| opba = opaque; |
| opba->cr = 0x00; /* No dynamic priorities - park disabled */ |
| opba->pr = 0x11; |
| } |
| |
| static void ppc4xx_opba_init(target_phys_addr_t base) |
| { |
| ppc4xx_opba_t *opba; |
| |
| opba = g_malloc0(sizeof(ppc4xx_opba_t)); |
| #ifdef DEBUG_OPBA |
| printf("%s: offset " TARGET_FMT_plx "\n", __func__, base); |
| #endif |
| memory_region_init_io(&opba->io, &opba_ops, opba, "opba", 0x002); |
| memory_region_add_subregion(get_system_memory(), base, &opba->io); |
| qemu_register_reset(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 uint32_t dcr_read_ebc (void *opaque, int dcrn) |
| { |
| ppc4xx_ebc_t *ebc; |
| uint32_t 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; |
| } |
| break; |
| default: |
| ret = 0x00000000; |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static void dcr_write_ebc (void *opaque, int dcrn, uint32_t 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; |
| } |
| |
| static void ppc405_ebc_init(CPUState *env) |
| { |
| ppc4xx_ebc_t *ebc; |
| |
| ebc = g_malloc0(sizeof(ppc4xx_ebc_t)); |
| qemu_register_reset(&ebc_reset, ebc); |
| ppc_dcr_register(env, EBC0_CFGADDR, |
| ebc, &dcr_read_ebc, &dcr_write_ebc); |
| ppc_dcr_register(env, EBC0_CFGDATA, |
| ebc, &dcr_read_ebc, &dcr_write_ebc); |
| } |
| |
| /*****************************************************************************/ |
| /* DMA controller */ |
| enum { |
| DMA0_CR0 = 0x100, |
| DMA0_CT0 = 0x101, |
| DMA0_DA0 = 0x102, |
| DMA0_SA0 = 0x103, |
| DMA0_SG0 = 0x104, |
| DMA0_CR1 = 0x108, |
| DMA0_CT1 = 0x109, |
| DMA0_DA1 = 0x10A, |
| DMA0_SA1 = 0x10B, |
| DMA0_SG1 = 0x10C, |
| DMA0_CR2 = 0x110, |
| DMA0_CT2 = 0x111, |
| DMA0_DA2 = 0x112, |
| DMA0_SA2 = 0x113, |
| DMA0_SG2 = 0x114, |
| DMA0_CR3 = 0x118, |
| DMA0_CT3 = 0x119, |
| DMA0_DA3 = 0x11A, |
| DMA0_SA3 = 0x11B, |
| DMA0_SG3 = 0x11C, |
| DMA0_SR = 0x120, |
| DMA0_SGC = 0x123, |
| DMA0_SLP = 0x125, |
| DMA0_POL = 0x126, |
| }; |
| |
| typedef struct ppc405_dma_t ppc405_dma_t; |
| struct ppc405_dma_t { |
| qemu_irq irqs[4]; |
| uint32_t cr[4]; |
| uint32_t ct[4]; |
| uint32_t da[4]; |
| uint32_t sa[4]; |
| uint32_t sg[4]; |
| uint32_t sr; |
| uint32_t sgc; |
| uint32_t slp; |
| uint32_t pol; |
| }; |
| |
| static uint32_t dcr_read_dma (void *opaque, int dcrn) |
| { |
| return 0; |
| } |
| |
| static void dcr_write_dma (void *opaque, int dcrn, uint32_t val) |
| { |
| } |
| |
| 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; |
| } |
| |
| static void ppc405_dma_init(CPUState *env, qemu_irq irqs[4]) |
| { |
| ppc405_dma_t *dma; |
| |
| dma = g_malloc0(sizeof(ppc405_dma_t)); |
| memcpy(dma->irqs, irqs, 4 * sizeof(qemu_irq)); |
| qemu_register_reset(&ppc405_dma_reset, dma); |
| ppc_dcr_register(env, DMA0_CR0, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_CT0, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_DA0, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_SA0, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_SG0, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_CR1, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_CT1, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_DA1, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_SA1, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_SG1, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_CR2, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_CT2, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_DA2, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_SA2, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_SG2, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_CR3, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_CT3, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_DA3, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_SA3, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_SG3, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_SR, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_SGC, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_SLP, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, DMA0_POL, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| } |
| |
| /*****************************************************************************/ |
| /* GPIO */ |
| typedef struct ppc405_gpio_t ppc405_gpio_t; |
| struct ppc405_gpio_t { |
| MemoryRegion io; |
| 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) |
| { |
| #ifdef DEBUG_GPIO |
| printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| #endif |
| |
| return 0; |
| } |
| |
| static void ppc405_gpio_writeb (void *opaque, |
| target_phys_addr_t addr, uint32_t value) |
| { |
| #ifdef DEBUG_GPIO |
| printf("%s: addr " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr, |
| value); |
| #endif |
| } |
| |
| static uint32_t ppc405_gpio_readw (void *opaque, target_phys_addr_t addr) |
| { |
| #ifdef DEBUG_GPIO |
| printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| #endif |
| |
| return 0; |
| } |
| |
| static void ppc405_gpio_writew (void *opaque, |
| target_phys_addr_t addr, uint32_t value) |
| { |
| #ifdef DEBUG_GPIO |
| printf("%s: addr " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr, |
| value); |
| #endif |
| } |
| |
| static uint32_t ppc405_gpio_readl (void *opaque, target_phys_addr_t addr) |
| { |
| #ifdef DEBUG_GPIO |
| printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| #endif |
| |
| return 0; |
| } |
| |
| static void ppc405_gpio_writel (void *opaque, |
| target_phys_addr_t addr, uint32_t value) |
| { |
| #ifdef DEBUG_GPIO |
| printf("%s: addr " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr, |
| value); |
| #endif |
| } |
| |
| static const MemoryRegionOps ppc405_gpio_ops = { |
| .old_mmio = { |
| .read = { ppc405_gpio_readb, ppc405_gpio_readw, ppc405_gpio_readl, }, |
| .write = { ppc405_gpio_writeb, ppc405_gpio_writew, ppc405_gpio_writel, }, |
| }, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| }; |
| |
| static void ppc405_gpio_reset (void *opaque) |
| { |
| } |
| |
| static void ppc405_gpio_init(target_phys_addr_t base) |
| { |
| ppc405_gpio_t *gpio; |
| |
| gpio = g_malloc0(sizeof(ppc405_gpio_t)); |
| #ifdef DEBUG_GPIO |
| printf("%s: offset " TARGET_FMT_plx "\n", __func__, base); |
| #endif |
| memory_region_init_io(&gpio->io, &ppc405_gpio_ops, gpio, "pgio", 0x038); |
| memory_region_add_subregion(get_system_memory(), base, &gpio->io); |
| qemu_register_reset(&ppc405_gpio_reset, gpio); |
| } |
| |
| /*****************************************************************************/ |
| /* 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 { |
| MemoryRegion ram; |
| MemoryRegion isarc_ram; |
| MemoryRegion dsarc_ram; |
| 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); |
| memory_region_del_subregion(get_system_memory(), &ocm->isarc_ram); |
| } |
| if (isacntl & 0x80000000) { |
| /* Map new instruction memory region */ |
| #ifdef DEBUG_OCM |
| printf("OCM map ISA %08" PRIx32 "\n", isarc); |
| #endif |
| memory_region_add_subregion(get_system_memory(), isarc, |
| &ocm->isarc_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 |
| memory_region_del_subregion(get_system_memory(), |
| &ocm->dsarc_ram); |
| } |
| } |
| 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 |
| memory_region_add_subregion(get_system_memory(), dsarc, |
| &ocm->dsarc_ram); |
| } |
| } |
| } |
| } |
| |
| static uint32_t dcr_read_ocm (void *opaque, int dcrn) |
| { |
| ppc405_ocm_t *ocm; |
| uint32_t 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, uint32_t 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; |
| } |
| |
| static void ppc405_ocm_init(CPUState *env) |
| { |
| ppc405_ocm_t *ocm; |
| |
| ocm = g_malloc0(sizeof(ppc405_ocm_t)); |
| /* XXX: Size is 4096 or 0x04000000 */ |
| memory_region_init_ram(&ocm->isarc_ram, "ppc405.ocm", 4096); |
| vmstate_register_ram_global(&ocm->isarc_ram); |
| memory_region_init_alias(&ocm->dsarc_ram, "ppc405.dsarc", &ocm->isarc_ram, |
| 0, 4096); |
| qemu_register_reset(&ocm_reset, ocm); |
| ppc_dcr_register(env, OCM0_ISARC, |
| ocm, &dcr_read_ocm, &dcr_write_ocm); |
| ppc_dcr_register(env, OCM0_ISACNTL, |
| ocm, &dcr_read_ocm, &dcr_write_ocm); |
| ppc_dcr_register(env, OCM0_DSARC, |
| ocm, &dcr_read_ocm, &dcr_write_ocm); |
| ppc_dcr_register(env, OCM0_DSACNTL, |
| ocm, &dcr_read_ocm, &dcr_write_ocm); |
| } |
| |
| /*****************************************************************************/ |
| /* I2C controller */ |
| typedef struct ppc4xx_i2c_t ppc4xx_i2c_t; |
| struct ppc4xx_i2c_t { |
| qemu_irq irq; |
| MemoryRegion iomem; |
| 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 " TARGET_FMT_plx "\n", __func__, addr); |
| #endif |
| i2c = opaque; |
| switch (addr) { |
| 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 " TARGET_FMT_plx " %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 " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr, |
| value); |
| #endif |
| i2c = opaque; |
| switch (addr) { |
| 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 " TARGET_FMT_plx "\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 " TARGET_FMT_plx " 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 " TARGET_FMT_plx "\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 " TARGET_FMT_plx " 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 const MemoryRegionOps i2c_ops = { |
| .old_mmio = { |
| .read = { ppc4xx_i2c_readb, ppc4xx_i2c_readw, ppc4xx_i2c_readl, }, |
| .write = { ppc4xx_i2c_writeb, ppc4xx_i2c_writew, ppc4xx_i2c_writel, }, |
| }, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| }; |
| |
| 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; |
| } |
| |
| static void ppc405_i2c_init(target_phys_addr_t base, qemu_irq irq) |
| { |
| ppc4xx_i2c_t *i2c; |
| |
| i2c = g_malloc0(sizeof(ppc4xx_i2c_t)); |
| i2c->irq = irq; |
| #ifdef DEBUG_I2C |
| printf("%s: offset " TARGET_FMT_plx "\n", __func__, base); |
| #endif |
| memory_region_init_io(&i2c->iomem, &i2c_ops, i2c, "i2c", 0x011); |
| memory_region_add_subregion(get_system_memory(), base, &i2c->iomem); |
| qemu_register_reset(ppc4xx_i2c_reset, i2c); |
| } |
| |
| /*****************************************************************************/ |
| /* General purpose timers */ |
| typedef struct ppc4xx_gpt_t ppc4xx_gpt_t; |
| struct ppc4xx_gpt_t { |
| MemoryRegion iomem; |
| 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 " TARGET_FMT_plx "\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 " TARGET_FMT_plx " 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 " TARGET_FMT_plx "\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 " TARGET_FMT_plx " 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 " TARGET_FMT_plx "\n", __func__, addr); |
| #endif |
| gpt = opaque; |
| switch (addr) { |
| case 0x00: |
| /* Time base counter */ |
| ret = muldiv64(qemu_get_clock_ns(vm_clock) + gpt->tb_offset, |
| gpt->tb_freq, get_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 - 0x80) >> 2; |
| ret = gpt->comp[idx]; |
| break; |
| case 0xC0 ... 0xD0: |
| /* Compare mask */ |
| idx = (addr - 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 " TARGET_FMT_plx " val %08" PRIx32 "\n", __func__, addr, |
| value); |
| #endif |
| gpt = opaque; |
| switch (addr) { |
| case 0x00: |
| /* Time base counter */ |
| gpt->tb_offset = muldiv64(value, get_ticks_per_sec(), gpt->tb_freq) |
| - qemu_get_clock_ns(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 - 0x80) >> 2; |
| gpt->comp[idx] = value & 0xF8000000; |
| ppc4xx_gpt_compute_timer(gpt); |
| break; |
| case 0xC0 ... 0xD0: |
| /* Compare mask */ |
| idx = (addr - 0xC0) >> 2; |
| gpt->mask[idx] = value & 0xF8000000; |
| ppc4xx_gpt_compute_timer(gpt); |
| break; |
| } |
| } |
| |
| static const MemoryRegionOps gpt_ops = { |
| .old_mmio = { |
| .read = { ppc4xx_gpt_readb, ppc4xx_gpt_readw, ppc4xx_gpt_readl, }, |
| .write = { ppc4xx_gpt_writeb, ppc4xx_gpt_writew, ppc4xx_gpt_writel, }, |
| }, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| }; |
| |
| 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; |
| } |
| } |
| |
| static void ppc4xx_gpt_init(target_phys_addr_t base, qemu_irq irqs[5]) |
| { |
| ppc4xx_gpt_t *gpt; |
| int i; |
| |
| gpt = g_malloc0(sizeof(ppc4xx_gpt_t)); |
| for (i = 0; i < 5; i++) { |
| gpt->irqs[i] = irqs[i]; |
| } |
| gpt->timer = qemu_new_timer_ns(vm_clock, &ppc4xx_gpt_cb, gpt); |
| #ifdef DEBUG_GPT |
| printf("%s: offset " TARGET_FMT_plx "\n", __func__, base); |
| #endif |
| memory_region_init_io(&gpt->iomem, &gpt_ops, gpt, "gpt", 0x0d4); |
| memory_region_add_subregion(get_system_memory(), base, &gpt->iomem); |
| qemu_register_reset(ppc4xx_gpt_reset, gpt); |
| } |
| |
| /*****************************************************************************/ |
| /* MAL */ |
| enum { |
| MAL0_CFG = 0x180, |
| MAL0_ESR = 0x181, |
| MAL0_IER = 0x182, |
| MAL0_TXCASR = 0x184, |
| MAL0_TXCARR = 0x185, |
| MAL0_TXEOBISR = 0x186, |
| MAL0_TXDEIR = 0x187, |
| MAL0_RXCASR = 0x190, |
| MAL0_RXCARR = 0x191, |
| MAL0_RXEOBISR = 0x192, |
| MAL0_RXDEIR = 0x193, |
| MAL0_TXCTP0R = 0x1A0, |
| MAL0_TXCTP1R = 0x1A1, |
| MAL0_TXCTP2R = 0x1A2, |
| MAL0_TXCTP3R = 0x1A3, |
| MAL0_RXCTP0R = 0x1C0, |
| MAL0_RXCTP1R = 0x1C1, |
| MAL0_RCBS0 = 0x1E0, |
| MAL0_RCBS1 = 0x1E1, |
| }; |
| |
| typedef struct ppc40x_mal_t ppc40x_mal_t; |
| struct ppc40x_mal_t { |
| qemu_irq irqs[4]; |
| uint32_t cfg; |
| uint32_t esr; |
| uint32_t ier; |
| uint32_t txcasr; |
| uint32_t txcarr; |
| uint32_t txeobisr; |
| uint32_t txdeir; |
| uint32_t rxcasr; |
| uint32_t rxcarr; |
| uint32_t rxeobisr; |
| uint32_t rxdeir; |
| uint32_t txctpr[4]; |
| uint32_t rxctpr[2]; |
| uint32_t rcbs[2]; |
| }; |
| |
| static void ppc40x_mal_reset (void *opaque); |
| |
| static uint32_t dcr_read_mal (void *opaque, int dcrn) |
| { |
| ppc40x_mal_t *mal; |
| uint32_t 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, uint32_t 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; |
| } |
| |
| static void ppc405_mal_init(CPUState *env, qemu_irq irqs[4]) |
| { |
| ppc40x_mal_t *mal; |
| int i; |
| |
| mal = g_malloc0(sizeof(ppc40x_mal_t)); |
| for (i = 0; i < 4; i++) |
| mal->irqs[i] = irqs[i]; |
| qemu_register_reset(&ppc40x_mal_reset, mal); |
| ppc_dcr_register(env, MAL0_CFG, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_ESR, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_IER, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_TXCASR, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_TXCARR, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_TXEOBISR, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_TXDEIR, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_RXCASR, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_RXCARR, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_RXEOBISR, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_RXDEIR, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_TXCTP0R, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_TXCTP1R, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_TXCTP2R, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_TXCTP3R, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_RXCTP0R, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_RXCTP1R, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_RCBS0, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| ppc_dcr_register(env, MAL0_RCBS1, |
| mal, &dcr_read_mal, &dcr_write_mal); |
| } |
| |
| /*****************************************************************************/ |
| /* SPR */ |
| void ppc40x_core_reset (CPUState *env) |
| { |
| target_ulong dbsr; |
| |
| printf("Reset PowerPC core\n"); |
| env->interrupt_request |= CPU_INTERRUPT_EXITTB; |
| /* XXX: TOFIX */ |
| #if 0 |
| cpu_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_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 uint32_t dcr_read_crcpc (void *opaque, int dcrn) |
| { |
| ppc405cr_cpc_t *cpc; |
| uint32_t 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, uint32_t 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 = g_malloc0(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, cpc); |
| } |
| |
| CPUState *ppc405cr_init(MemoryRegion *address_space_mem, |
| MemoryRegion ram_memories[4], |
| 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; |
| 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 */ |
| /* PLB arbitrer */ |
| ppc4xx_plb_init(env); |
| /* PLB to OPB bridge */ |
| ppc4xx_pob_init(env); |
| /* OBP arbitrer */ |
| ppc4xx_opba_init(0xef600600); |
| /* Universal interrupt controller */ |
| irqs = g_malloc0(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_memories, |
| 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) { |
| serial_mm_init(address_space_mem, 0xef600300, 0, pic[0], |
| PPC_SERIAL_MM_BAUDBASE, serial_hds[0], |
| DEVICE_BIG_ENDIAN); |
| } |
| if (serial_hds[1] != NULL) { |
| serial_mm_init(address_space_mem, 0xef600400, 0, pic[1], |
| PPC_SERIAL_MM_BAUDBASE, serial_hds[1], |
| DEVICE_BIG_ENDIAN); |
| } |
| /* IIC controller */ |
| ppc405_i2c_init(0xef600500, pic[2]); |
| /* GPIO */ |
| ppc405_gpio_init(0xef600700); |
| /* 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 uint32_t dcr_read_epcpc (void *opaque, int dcrn) |
| { |
| ppc405ep_cpc_t *cpc; |
| uint32_t 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, uint32_t 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 = g_malloc0(sizeof(ppc405ep_cpc_t)); |
| memcpy(cpc->clk_setup, clk_setup, |
| PPC405EP_CLK_NB * sizeof(clk_setup_t)); |
| cpc->jtagid = 0x20267049; |
| cpc->sysclk = sysclk; |
| qemu_register_reset(&ppc405ep_cpc_reset, cpc); |
| ppc_dcr_register(env, PPC405EP_CPC0_BOOT, cpc, |
| &dcr_read_epcpc, &dcr_write_epcpc); |
| ppc_dcr_register(env, PPC405EP_CPC0_EPCTL, cpc, |
| &dcr_read_epcpc, &dcr_write_epcpc); |
| ppc_dcr_register(env, PPC405EP_CPC0_PLLMR0, cpc, |
| &dcr_read_epcpc, &dcr_write_epcpc); |
| ppc_dcr_register(env, PPC405EP_CPC0_PLLMR1, cpc, |
| &dcr_read_epcpc, &dcr_write_epcpc); |
| ppc_dcr_register(env, PPC405EP_CPC0_UCR, cpc, |
| &dcr_read_epcpc, &dcr_write_epcpc); |
| ppc_dcr_register(env, PPC405EP_CPC0_SRR, cpc, |
| &dcr_read_epcpc, &dcr_write_epcpc); |
| ppc_dcr_register(env, PPC405EP_CPC0_JTAGID, cpc, |
| &dcr_read_epcpc, &dcr_write_epcpc); |
| ppc_dcr_register(env, PPC405EP_CPC0_PCI, cpc, |
| &dcr_read_epcpc, &dcr_write_epcpc); |
| #if 0 |
| ppc_dcr_register(env, PPC405EP_CPC0_ER, cpc, |
| &dcr_read_epcpc, &dcr_write_epcpc); |
| ppc_dcr_register(env, PPC405EP_CPC0_FR, cpc, |
| &dcr_read_epcpc, &dcr_write_epcpc); |
| ppc_dcr_register(env, PPC405EP_CPC0_SR, cpc, |
| &dcr_read_epcpc, &dcr_write_epcpc); |
| #endif |
| } |
| |
| CPUState *ppc405ep_init(MemoryRegion *address_space_mem, |
| MemoryRegion ram_memories[2], |
| 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; |
| 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 */ |
| /* PLB arbitrer */ |
| ppc4xx_plb_init(env); |
| /* PLB to OPB bridge */ |
| ppc4xx_pob_init(env); |
| /* OBP arbitrer */ |
| ppc4xx_opba_init(0xef600600); |
| /* Universal interrupt controller */ |
| irqs = g_malloc0(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_memories, |
| 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(0xef600500, pic[2]); |
| /* GPIO */ |
| ppc405_gpio_init(0xef600700); |
| /* Serial ports */ |
| if (serial_hds[0] != NULL) { |
| serial_mm_init(address_space_mem, 0xef600300, 0, pic[0], |
| PPC_SERIAL_MM_BAUDBASE, serial_hds[0], |
| DEVICE_BIG_ENDIAN); |
| } |
| if (serial_hds[1] != NULL) { |
| serial_mm_init(address_space_mem, 0xef600400, 0, pic[1], |
| PPC_SERIAL_MM_BAUDBASE, serial_hds[1], |
| DEVICE_BIG_ENDIAN); |
| } |
| /* 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(0xef600000, 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; |
| } |
