87ecb68bdf
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3674 c046a42c-6fe2-441c-8c8c-71466251a162
2973 lines
78 KiB
C
2973 lines
78 KiB
C
/*
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* QEMU PowerPC 405 embedded processors emulation
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*
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* Copyright (c) 2007 Jocelyn Mayer
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw.h"
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#include "ppc.h"
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#include "ppc405.h"
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#include "pc.h"
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#include "qemu-timer.h"
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#include "sysemu.h"
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extern int loglevel;
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extern FILE *logfile;
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#define DEBUG_OPBA
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#define DEBUG_SDRAM
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#define DEBUG_GPIO
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#define DEBUG_SERIAL
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#define DEBUG_OCM
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//#define DEBUG_I2C
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#define DEBUG_GPT
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#define DEBUG_MAL
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#define DEBUG_CLOCKS
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//#define DEBUG_UNASSIGNED
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ram_addr_t ppc405_set_bootinfo (CPUState *env, ppc4xx_bd_info_t *bd,
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uint32_t flags)
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{
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ram_addr_t bdloc;
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int i, n;
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/* We put the bd structure at the top of memory */
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if (bd->bi_memsize >= 0x01000000UL)
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bdloc = 0x01000000UL - sizeof(struct ppc4xx_bd_info_t);
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else
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bdloc = bd->bi_memsize - sizeof(struct ppc4xx_bd_info_t);
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stl_raw(phys_ram_base + bdloc + 0x00, bd->bi_memstart);
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stl_raw(phys_ram_base + bdloc + 0x04, bd->bi_memsize);
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stl_raw(phys_ram_base + bdloc + 0x08, bd->bi_flashstart);
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stl_raw(phys_ram_base + bdloc + 0x0C, bd->bi_flashsize);
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stl_raw(phys_ram_base + bdloc + 0x10, bd->bi_flashoffset);
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stl_raw(phys_ram_base + bdloc + 0x14, bd->bi_sramstart);
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stl_raw(phys_ram_base + bdloc + 0x18, bd->bi_sramsize);
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stl_raw(phys_ram_base + bdloc + 0x1C, bd->bi_bootflags);
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stl_raw(phys_ram_base + bdloc + 0x20, bd->bi_ipaddr);
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for (i = 0; i < 6; i++)
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stb_raw(phys_ram_base + bdloc + 0x24 + i, bd->bi_enetaddr[i]);
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stw_raw(phys_ram_base + bdloc + 0x2A, bd->bi_ethspeed);
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stl_raw(phys_ram_base + bdloc + 0x2C, bd->bi_intfreq);
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stl_raw(phys_ram_base + bdloc + 0x30, bd->bi_busfreq);
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stl_raw(phys_ram_base + bdloc + 0x34, bd->bi_baudrate);
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for (i = 0; i < 4; i++)
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stb_raw(phys_ram_base + bdloc + 0x38 + i, bd->bi_s_version[i]);
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for (i = 0; i < 32; i++)
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stb_raw(phys_ram_base + bdloc + 0x3C + i, bd->bi_s_version[i]);
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stl_raw(phys_ram_base + bdloc + 0x5C, bd->bi_plb_busfreq);
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stl_raw(phys_ram_base + bdloc + 0x60, bd->bi_pci_busfreq);
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for (i = 0; i < 6; i++)
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stb_raw(phys_ram_base + bdloc + 0x64 + i, bd->bi_pci_enetaddr[i]);
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n = 0x6A;
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if (flags & 0x00000001) {
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for (i = 0; i < 6; i++)
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stb_raw(phys_ram_base + bdloc + n++, bd->bi_pci_enetaddr2[i]);
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}
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stl_raw(phys_ram_base + bdloc + n, bd->bi_opbfreq);
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n += 4;
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for (i = 0; i < 2; i++) {
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stl_raw(phys_ram_base + bdloc + n, bd->bi_iic_fast[i]);
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n += 4;
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}
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return bdloc;
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}
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/*****************************************************************************/
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/* Shared peripherals */
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/*****************************************************************************/
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/* Peripheral local bus arbitrer */
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enum {
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PLB0_BESR = 0x084,
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PLB0_BEAR = 0x086,
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PLB0_ACR = 0x087,
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};
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typedef struct ppc4xx_plb_t ppc4xx_plb_t;
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struct ppc4xx_plb_t {
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uint32_t acr;
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uint32_t bear;
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uint32_t besr;
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};
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static target_ulong dcr_read_plb (void *opaque, int dcrn)
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{
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ppc4xx_plb_t *plb;
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target_ulong ret;
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plb = opaque;
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switch (dcrn) {
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case PLB0_ACR:
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ret = plb->acr;
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break;
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case PLB0_BEAR:
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ret = plb->bear;
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break;
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case PLB0_BESR:
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ret = plb->besr;
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break;
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default:
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/* Avoid gcc warning */
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ret = 0;
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break;
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}
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return ret;
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}
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static void dcr_write_plb (void *opaque, int dcrn, target_ulong val)
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{
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ppc4xx_plb_t *plb;
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plb = opaque;
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switch (dcrn) {
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case PLB0_ACR:
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/* We don't care about the actual parameters written as
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* we don't manage any priorities on the bus
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*/
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plb->acr = val & 0xF8000000;
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break;
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case PLB0_BEAR:
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/* Read only */
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break;
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case PLB0_BESR:
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/* Write-clear */
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plb->besr &= ~val;
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break;
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}
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}
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static void ppc4xx_plb_reset (void *opaque)
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{
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ppc4xx_plb_t *plb;
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plb = opaque;
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plb->acr = 0x00000000;
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plb->bear = 0x00000000;
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plb->besr = 0x00000000;
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}
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void ppc4xx_plb_init (CPUState *env)
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{
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ppc4xx_plb_t *plb;
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plb = qemu_mallocz(sizeof(ppc4xx_plb_t));
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if (plb != NULL) {
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ppc_dcr_register(env, PLB0_ACR, plb, &dcr_read_plb, &dcr_write_plb);
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ppc_dcr_register(env, PLB0_BEAR, plb, &dcr_read_plb, &dcr_write_plb);
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ppc_dcr_register(env, PLB0_BESR, plb, &dcr_read_plb, &dcr_write_plb);
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ppc4xx_plb_reset(plb);
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qemu_register_reset(ppc4xx_plb_reset, plb);
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}
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}
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/*****************************************************************************/
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/* PLB to OPB bridge */
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enum {
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POB0_BESR0 = 0x0A0,
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POB0_BESR1 = 0x0A2,
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POB0_BEAR = 0x0A4,
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};
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typedef struct ppc4xx_pob_t ppc4xx_pob_t;
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struct ppc4xx_pob_t {
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uint32_t bear;
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uint32_t besr[2];
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};
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static target_ulong dcr_read_pob (void *opaque, int dcrn)
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{
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ppc4xx_pob_t *pob;
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target_ulong ret;
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pob = opaque;
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switch (dcrn) {
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case POB0_BEAR:
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ret = pob->bear;
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break;
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case POB0_BESR0:
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case POB0_BESR1:
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ret = pob->besr[dcrn - POB0_BESR0];
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break;
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default:
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/* Avoid gcc warning */
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ret = 0;
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break;
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}
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return ret;
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}
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static void dcr_write_pob (void *opaque, int dcrn, target_ulong val)
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{
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ppc4xx_pob_t *pob;
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pob = opaque;
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switch (dcrn) {
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case POB0_BEAR:
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/* Read only */
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break;
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case POB0_BESR0:
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case POB0_BESR1:
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/* Write-clear */
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pob->besr[dcrn - POB0_BESR0] &= ~val;
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break;
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}
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}
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static void ppc4xx_pob_reset (void *opaque)
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{
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ppc4xx_pob_t *pob;
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pob = opaque;
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/* No error */
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pob->bear = 0x00000000;
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pob->besr[0] = 0x0000000;
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pob->besr[1] = 0x0000000;
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}
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void ppc4xx_pob_init (CPUState *env)
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{
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ppc4xx_pob_t *pob;
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pob = qemu_mallocz(sizeof(ppc4xx_pob_t));
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if (pob != NULL) {
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ppc_dcr_register(env, POB0_BEAR, pob, &dcr_read_pob, &dcr_write_pob);
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ppc_dcr_register(env, POB0_BESR0, pob, &dcr_read_pob, &dcr_write_pob);
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ppc_dcr_register(env, POB0_BESR1, pob, &dcr_read_pob, &dcr_write_pob);
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qemu_register_reset(ppc4xx_pob_reset, pob);
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ppc4xx_pob_reset(env);
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}
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}
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/*****************************************************************************/
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/* OPB arbitrer */
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typedef struct ppc4xx_opba_t ppc4xx_opba_t;
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struct ppc4xx_opba_t {
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target_phys_addr_t base;
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uint8_t cr;
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uint8_t pr;
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};
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static uint32_t opba_readb (void *opaque, target_phys_addr_t addr)
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{
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ppc4xx_opba_t *opba;
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uint32_t ret;
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#ifdef DEBUG_OPBA
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printf("%s: addr " PADDRX "\n", __func__, addr);
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#endif
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opba = opaque;
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switch (addr - opba->base) {
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case 0x00:
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ret = opba->cr;
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break;
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case 0x01:
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ret = opba->pr;
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break;
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default:
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ret = 0x00;
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break;
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}
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return ret;
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}
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static void opba_writeb (void *opaque,
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target_phys_addr_t addr, uint32_t value)
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{
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ppc4xx_opba_t *opba;
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#ifdef DEBUG_OPBA
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printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
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#endif
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opba = opaque;
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switch (addr - opba->base) {
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case 0x00:
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opba->cr = value & 0xF8;
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break;
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case 0x01:
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opba->pr = value & 0xFF;
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break;
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default:
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break;
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}
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}
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static uint32_t opba_readw (void *opaque, target_phys_addr_t addr)
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{
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uint32_t ret;
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#ifdef DEBUG_OPBA
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printf("%s: addr " PADDRX "\n", __func__, addr);
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#endif
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ret = opba_readb(opaque, addr) << 8;
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ret |= opba_readb(opaque, addr + 1);
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return ret;
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}
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static void opba_writew (void *opaque,
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target_phys_addr_t addr, uint32_t value)
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{
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#ifdef DEBUG_OPBA
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printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
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#endif
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opba_writeb(opaque, addr, value >> 8);
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opba_writeb(opaque, addr + 1, value);
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}
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static uint32_t opba_readl (void *opaque, target_phys_addr_t addr)
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{
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uint32_t ret;
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#ifdef DEBUG_OPBA
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printf("%s: addr " PADDRX "\n", __func__, addr);
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#endif
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ret = opba_readb(opaque, addr) << 24;
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ret |= opba_readb(opaque, addr + 1) << 16;
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return ret;
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}
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static void opba_writel (void *opaque,
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target_phys_addr_t addr, uint32_t value)
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{
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#ifdef DEBUG_OPBA
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printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
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#endif
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opba_writeb(opaque, addr, value >> 24);
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opba_writeb(opaque, addr + 1, value >> 16);
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}
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static CPUReadMemoryFunc *opba_read[] = {
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&opba_readb,
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&opba_readw,
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&opba_readl,
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};
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static CPUWriteMemoryFunc *opba_write[] = {
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&opba_writeb,
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&opba_writew,
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&opba_writel,
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};
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static void ppc4xx_opba_reset (void *opaque)
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{
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ppc4xx_opba_t *opba;
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opba = opaque;
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opba->cr = 0x00; /* No dynamic priorities - park disabled */
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opba->pr = 0x11;
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}
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void ppc4xx_opba_init (CPUState *env, ppc4xx_mmio_t *mmio,
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target_phys_addr_t offset)
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{
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ppc4xx_opba_t *opba;
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opba = qemu_mallocz(sizeof(ppc4xx_opba_t));
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if (opba != NULL) {
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opba->base = offset;
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#ifdef DEBUG_OPBA
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printf("%s: offset=" PADDRX "\n", __func__, offset);
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#endif
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ppc4xx_mmio_register(env, mmio, offset, 0x002,
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opba_read, opba_write, opba);
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qemu_register_reset(ppc4xx_opba_reset, opba);
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ppc4xx_opba_reset(opba);
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}
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}
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/*****************************************************************************/
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/* Code decompression controller */
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/* XXX: TODO */
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/*****************************************************************************/
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/* SDRAM controller */
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typedef struct ppc4xx_sdram_t ppc4xx_sdram_t;
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struct ppc4xx_sdram_t {
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uint32_t addr;
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int nbanks;
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target_phys_addr_t ram_bases[4];
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target_phys_addr_t ram_sizes[4];
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uint32_t besr0;
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uint32_t besr1;
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uint32_t bear;
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uint32_t cfg;
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uint32_t status;
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uint32_t rtr;
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uint32_t pmit;
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uint32_t bcr[4];
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uint32_t tr;
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uint32_t ecccfg;
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uint32_t eccesr;
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qemu_irq irq;
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};
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enum {
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SDRAM0_CFGADDR = 0x010,
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SDRAM0_CFGDATA = 0x011,
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};
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static uint32_t sdram_bcr (target_phys_addr_t ram_base,
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target_phys_addr_t ram_size)
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{
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uint32_t bcr;
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switch (ram_size) {
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case (4 * 1024 * 1024):
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bcr = 0x00000000;
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break;
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case (8 * 1024 * 1024):
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bcr = 0x00020000;
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break;
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case (16 * 1024 * 1024):
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bcr = 0x00040000;
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break;
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case (32 * 1024 * 1024):
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bcr = 0x00060000;
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break;
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case (64 * 1024 * 1024):
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bcr = 0x00080000;
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break;
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case (128 * 1024 * 1024):
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bcr = 0x000A0000;
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break;
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case (256 * 1024 * 1024):
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bcr = 0x000C0000;
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break;
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default:
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printf("%s: invalid RAM size " TARGET_FMT_plx "\n",
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__func__, ram_size);
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return 0x00000000;
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}
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bcr |= ram_base & 0xFF800000;
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bcr |= 1;
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return bcr;
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}
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static always_inline target_phys_addr_t sdram_base (uint32_t bcr)
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{
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return bcr & 0xFF800000;
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}
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static target_ulong sdram_size (uint32_t bcr)
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{
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target_ulong size;
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int sh;
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sh = (bcr >> 17) & 0x7;
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if (sh == 7)
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size = -1;
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else
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size = (4 * 1024 * 1024) << sh;
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return size;
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}
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static void sdram_set_bcr (uint32_t *bcrp, uint32_t bcr, int enabled)
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{
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if (*bcrp & 0x00000001) {
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/* Unmap RAM */
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#ifdef DEBUG_SDRAM
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printf("%s: unmap RAM area " TARGET_FMT_plx " " TARGET_FMT_lx "\n",
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__func__, sdram_base(*bcrp), sdram_size(*bcrp));
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#endif
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cpu_register_physical_memory(sdram_base(*bcrp), sdram_size(*bcrp),
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IO_MEM_UNASSIGNED);
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}
|
|
*bcrp = bcr & 0xFFDEE001;
|
|
if (enabled && (bcr & 0x00000001)) {
|
|
#ifdef DEBUG_SDRAM
|
|
printf("%s: Map RAM area " TARGET_FMT_plx " " TARGET_FMT_lx "\n",
|
|
__func__, sdram_base(bcr), sdram_size(bcr));
|
|
#endif
|
|
cpu_register_physical_memory(sdram_base(bcr), sdram_size(bcr),
|
|
sdram_base(bcr) | IO_MEM_RAM);
|
|
}
|
|
}
|
|
|
|
static void sdram_map_bcr (ppc4xx_sdram_t *sdram)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < sdram->nbanks; i++) {
|
|
if (sdram->ram_sizes[i] != 0) {
|
|
sdram_set_bcr(&sdram->bcr[i],
|
|
sdram_bcr(sdram->ram_bases[i], sdram->ram_sizes[i]),
|
|
1);
|
|
} else {
|
|
sdram_set_bcr(&sdram->bcr[i], 0x00000000, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void sdram_unmap_bcr (ppc4xx_sdram_t *sdram)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < sdram->nbanks; i++) {
|
|
#ifdef DEBUG_SDRAM
|
|
printf("%s: Unmap RAM area " TARGET_FMT_plx " " TARGET_FMT_lx "\n",
|
|
__func__, sdram_base(sdram->bcr[i]), sdram_size(sdram->bcr[i]));
|
|
#endif
|
|
cpu_register_physical_memory(sdram_base(sdram->bcr[i]),
|
|
sdram_size(sdram->bcr[i]),
|
|
IO_MEM_UNASSIGNED);
|
|
}
|
|
}
|
|
|
|
static target_ulong dcr_read_sdram (void *opaque, int dcrn)
|
|
{
|
|
ppc4xx_sdram_t *sdram;
|
|
target_ulong ret;
|
|
|
|
sdram = opaque;
|
|
switch (dcrn) {
|
|
case SDRAM0_CFGADDR:
|
|
ret = sdram->addr;
|
|
break;
|
|
case SDRAM0_CFGDATA:
|
|
switch (sdram->addr) {
|
|
case 0x00: /* SDRAM_BESR0 */
|
|
ret = sdram->besr0;
|
|
break;
|
|
case 0x08: /* SDRAM_BESR1 */
|
|
ret = sdram->besr1;
|
|
break;
|
|
case 0x10: /* SDRAM_BEAR */
|
|
ret = sdram->bear;
|
|
break;
|
|
case 0x20: /* SDRAM_CFG */
|
|
ret = sdram->cfg;
|
|
break;
|
|
case 0x24: /* SDRAM_STATUS */
|
|
ret = sdram->status;
|
|
break;
|
|
case 0x30: /* SDRAM_RTR */
|
|
ret = sdram->rtr;
|
|
break;
|
|
case 0x34: /* SDRAM_PMIT */
|
|
ret = sdram->pmit;
|
|
break;
|
|
case 0x40: /* SDRAM_B0CR */
|
|
ret = sdram->bcr[0];
|
|
break;
|
|
case 0x44: /* SDRAM_B1CR */
|
|
ret = sdram->bcr[1];
|
|
break;
|
|
case 0x48: /* SDRAM_B2CR */
|
|
ret = sdram->bcr[2];
|
|
break;
|
|
case 0x4C: /* SDRAM_B3CR */
|
|
ret = sdram->bcr[3];
|
|
break;
|
|
case 0x80: /* SDRAM_TR */
|
|
ret = -1; /* ? */
|
|
break;
|
|
case 0x94: /* SDRAM_ECCCFG */
|
|
ret = sdram->ecccfg;
|
|
break;
|
|
case 0x98: /* SDRAM_ECCESR */
|
|
ret = sdram->eccesr;
|
|
break;
|
|
default: /* Error */
|
|
ret = -1;
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
/* Avoid gcc warning */
|
|
ret = 0x00000000;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void dcr_write_sdram (void *opaque, int dcrn, target_ulong val)
|
|
{
|
|
ppc4xx_sdram_t *sdram;
|
|
|
|
sdram = opaque;
|
|
switch (dcrn) {
|
|
case SDRAM0_CFGADDR:
|
|
sdram->addr = val;
|
|
break;
|
|
case SDRAM0_CFGDATA:
|
|
switch (sdram->addr) {
|
|
case 0x00: /* SDRAM_BESR0 */
|
|
sdram->besr0 &= ~val;
|
|
break;
|
|
case 0x08: /* SDRAM_BESR1 */
|
|
sdram->besr1 &= ~val;
|
|
break;
|
|
case 0x10: /* SDRAM_BEAR */
|
|
sdram->bear = val;
|
|
break;
|
|
case 0x20: /* SDRAM_CFG */
|
|
val &= 0xFFE00000;
|
|
if (!(sdram->cfg & 0x80000000) && (val & 0x80000000)) {
|
|
#ifdef DEBUG_SDRAM
|
|
printf("%s: enable SDRAM controller\n", __func__);
|
|
#endif
|
|
/* validate all RAM mappings */
|
|
sdram_map_bcr(sdram);
|
|
sdram->status &= ~0x80000000;
|
|
} else if ((sdram->cfg & 0x80000000) && !(val & 0x80000000)) {
|
|
#ifdef DEBUG_SDRAM
|
|
printf("%s: disable SDRAM controller\n", __func__);
|
|
#endif
|
|
/* invalidate all RAM mappings */
|
|
sdram_unmap_bcr(sdram);
|
|
sdram->status |= 0x80000000;
|
|
}
|
|
if (!(sdram->cfg & 0x40000000) && (val & 0x40000000))
|
|
sdram->status |= 0x40000000;
|
|
else if ((sdram->cfg & 0x40000000) && !(val & 0x40000000))
|
|
sdram->status &= ~0x40000000;
|
|
sdram->cfg = val;
|
|
break;
|
|
case 0x24: /* SDRAM_STATUS */
|
|
/* Read-only register */
|
|
break;
|
|
case 0x30: /* SDRAM_RTR */
|
|
sdram->rtr = val & 0x3FF80000;
|
|
break;
|
|
case 0x34: /* SDRAM_PMIT */
|
|
sdram->pmit = (val & 0xF8000000) | 0x07C00000;
|
|
break;
|
|
case 0x40: /* SDRAM_B0CR */
|
|
sdram_set_bcr(&sdram->bcr[0], val, sdram->cfg & 0x80000000);
|
|
break;
|
|
case 0x44: /* SDRAM_B1CR */
|
|
sdram_set_bcr(&sdram->bcr[1], val, sdram->cfg & 0x80000000);
|
|
break;
|
|
case 0x48: /* SDRAM_B2CR */
|
|
sdram_set_bcr(&sdram->bcr[2], val, sdram->cfg & 0x80000000);
|
|
break;
|
|
case 0x4C: /* SDRAM_B3CR */
|
|
sdram_set_bcr(&sdram->bcr[3], val, sdram->cfg & 0x80000000);
|
|
break;
|
|
case 0x80: /* SDRAM_TR */
|
|
sdram->tr = val & 0x018FC01F;
|
|
break;
|
|
case 0x94: /* SDRAM_ECCCFG */
|
|
sdram->ecccfg = val & 0x00F00000;
|
|
break;
|
|
case 0x98: /* SDRAM_ECCESR */
|
|
val &= 0xFFF0F000;
|
|
if (sdram->eccesr == 0 && val != 0)
|
|
qemu_irq_raise(sdram->irq);
|
|
else if (sdram->eccesr != 0 && val == 0)
|
|
qemu_irq_lower(sdram->irq);
|
|
sdram->eccesr = val;
|
|
break;
|
|
default: /* Error */
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void sdram_reset (void *opaque)
|
|
{
|
|
ppc4xx_sdram_t *sdram;
|
|
|
|
sdram = opaque;
|
|
sdram->addr = 0x00000000;
|
|
sdram->bear = 0x00000000;
|
|
sdram->besr0 = 0x00000000; /* No error */
|
|
sdram->besr1 = 0x00000000; /* No error */
|
|
sdram->cfg = 0x00000000;
|
|
sdram->ecccfg = 0x00000000; /* No ECC */
|
|
sdram->eccesr = 0x00000000; /* No error */
|
|
sdram->pmit = 0x07C00000;
|
|
sdram->rtr = 0x05F00000;
|
|
sdram->tr = 0x00854009;
|
|
/* We pre-initialize RAM banks */
|
|
sdram->status = 0x00000000;
|
|
sdram->cfg = 0x00800000;
|
|
sdram_unmap_bcr(sdram);
|
|
}
|
|
|
|
void ppc405_sdram_init (CPUState *env, qemu_irq irq, int nbanks,
|
|
target_phys_addr_t *ram_bases,
|
|
target_phys_addr_t *ram_sizes,
|
|
int do_init)
|
|
{
|
|
ppc4xx_sdram_t *sdram;
|
|
|
|
sdram = qemu_mallocz(sizeof(ppc4xx_sdram_t));
|
|
if (sdram != NULL) {
|
|
sdram->irq = irq;
|
|
sdram->nbanks = nbanks;
|
|
memset(sdram->ram_bases, 0, 4 * sizeof(target_phys_addr_t));
|
|
memcpy(sdram->ram_bases, ram_bases,
|
|
nbanks * sizeof(target_phys_addr_t));
|
|
memset(sdram->ram_sizes, 0, 4 * sizeof(target_phys_addr_t));
|
|
memcpy(sdram->ram_sizes, ram_sizes,
|
|
nbanks * sizeof(target_phys_addr_t));
|
|
sdram_reset(sdram);
|
|
qemu_register_reset(&sdram_reset, sdram);
|
|
ppc_dcr_register(env, SDRAM0_CFGADDR,
|
|
sdram, &dcr_read_sdram, &dcr_write_sdram);
|
|
ppc_dcr_register(env, SDRAM0_CFGDATA,
|
|
sdram, &dcr_read_sdram, &dcr_write_sdram);
|
|
if (do_init)
|
|
sdram_map_bcr(sdram);
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* Peripheral controller */
|
|
typedef struct ppc4xx_ebc_t ppc4xx_ebc_t;
|
|
struct ppc4xx_ebc_t {
|
|
uint32_t addr;
|
|
uint32_t bcr[8];
|
|
uint32_t bap[8];
|
|
uint32_t bear;
|
|
uint32_t besr0;
|
|
uint32_t besr1;
|
|
uint32_t cfg;
|
|
};
|
|
|
|
enum {
|
|
EBC0_CFGADDR = 0x012,
|
|
EBC0_CFGDATA = 0x013,
|
|
};
|
|
|
|
static target_ulong dcr_read_ebc (void *opaque, int dcrn)
|
|
{
|
|
ppc4xx_ebc_t *ebc;
|
|
target_ulong ret;
|
|
|
|
ebc = opaque;
|
|
switch (dcrn) {
|
|
case EBC0_CFGADDR:
|
|
ret = ebc->addr;
|
|
break;
|
|
case EBC0_CFGDATA:
|
|
switch (ebc->addr) {
|
|
case 0x00: /* B0CR */
|
|
ret = ebc->bcr[0];
|
|
break;
|
|
case 0x01: /* B1CR */
|
|
ret = ebc->bcr[1];
|
|
break;
|
|
case 0x02: /* B2CR */
|
|
ret = ebc->bcr[2];
|
|
break;
|
|
case 0x03: /* B3CR */
|
|
ret = ebc->bcr[3];
|
|
break;
|
|
case 0x04: /* B4CR */
|
|
ret = ebc->bcr[4];
|
|
break;
|
|
case 0x05: /* B5CR */
|
|
ret = ebc->bcr[5];
|
|
break;
|
|
case 0x06: /* B6CR */
|
|
ret = ebc->bcr[6];
|
|
break;
|
|
case 0x07: /* B7CR */
|
|
ret = ebc->bcr[7];
|
|
break;
|
|
case 0x10: /* B0AP */
|
|
ret = ebc->bap[0];
|
|
break;
|
|
case 0x11: /* B1AP */
|
|
ret = ebc->bap[1];
|
|
break;
|
|
case 0x12: /* B2AP */
|
|
ret = ebc->bap[2];
|
|
break;
|
|
case 0x13: /* B3AP */
|
|
ret = ebc->bap[3];
|
|
break;
|
|
case 0x14: /* B4AP */
|
|
ret = ebc->bap[4];
|
|
break;
|
|
case 0x15: /* B5AP */
|
|
ret = ebc->bap[5];
|
|
break;
|
|
case 0x16: /* B6AP */
|
|
ret = ebc->bap[6];
|
|
break;
|
|
case 0x17: /* B7AP */
|
|
ret = ebc->bap[7];
|
|
break;
|
|
case 0x20: /* BEAR */
|
|
ret = ebc->bear;
|
|
break;
|
|
case 0x21: /* BESR0 */
|
|
ret = ebc->besr0;
|
|
break;
|
|
case 0x22: /* BESR1 */
|
|
ret = ebc->besr1;
|
|
break;
|
|
case 0x23: /* CFG */
|
|
ret = ebc->cfg;
|
|
break;
|
|
default:
|
|
ret = 0x00000000;
|
|
break;
|
|
}
|
|
default:
|
|
ret = 0x00000000;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void dcr_write_ebc (void *opaque, int dcrn, target_ulong val)
|
|
{
|
|
ppc4xx_ebc_t *ebc;
|
|
|
|
ebc = opaque;
|
|
switch (dcrn) {
|
|
case EBC0_CFGADDR:
|
|
ebc->addr = val;
|
|
break;
|
|
case EBC0_CFGDATA:
|
|
switch (ebc->addr) {
|
|
case 0x00: /* B0CR */
|
|
break;
|
|
case 0x01: /* B1CR */
|
|
break;
|
|
case 0x02: /* B2CR */
|
|
break;
|
|
case 0x03: /* B3CR */
|
|
break;
|
|
case 0x04: /* B4CR */
|
|
break;
|
|
case 0x05: /* B5CR */
|
|
break;
|
|
case 0x06: /* B6CR */
|
|
break;
|
|
case 0x07: /* B7CR */
|
|
break;
|
|
case 0x10: /* B0AP */
|
|
break;
|
|
case 0x11: /* B1AP */
|
|
break;
|
|
case 0x12: /* B2AP */
|
|
break;
|
|
case 0x13: /* B3AP */
|
|
break;
|
|
case 0x14: /* B4AP */
|
|
break;
|
|
case 0x15: /* B5AP */
|
|
break;
|
|
case 0x16: /* B6AP */
|
|
break;
|
|
case 0x17: /* B7AP */
|
|
break;
|
|
case 0x20: /* BEAR */
|
|
break;
|
|
case 0x21: /* BESR0 */
|
|
break;
|
|
case 0x22: /* BESR1 */
|
|
break;
|
|
case 0x23: /* CFG */
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void ebc_reset (void *opaque)
|
|
{
|
|
ppc4xx_ebc_t *ebc;
|
|
int i;
|
|
|
|
ebc = opaque;
|
|
ebc->addr = 0x00000000;
|
|
ebc->bap[0] = 0x7F8FFE80;
|
|
ebc->bcr[0] = 0xFFE28000;
|
|
for (i = 0; i < 8; i++) {
|
|
ebc->bap[i] = 0x00000000;
|
|
ebc->bcr[i] = 0x00000000;
|
|
}
|
|
ebc->besr0 = 0x00000000;
|
|
ebc->besr1 = 0x00000000;
|
|
ebc->cfg = 0x80400000;
|
|
}
|
|
|
|
void ppc405_ebc_init (CPUState *env)
|
|
{
|
|
ppc4xx_ebc_t *ebc;
|
|
|
|
ebc = qemu_mallocz(sizeof(ppc4xx_ebc_t));
|
|
if (ebc != NULL) {
|
|
ebc_reset(ebc);
|
|
qemu_register_reset(&ebc_reset, ebc);
|
|
ppc_dcr_register(env, EBC0_CFGADDR,
|
|
ebc, &dcr_read_ebc, &dcr_write_ebc);
|
|
ppc_dcr_register(env, EBC0_CFGDATA,
|
|
ebc, &dcr_read_ebc, &dcr_write_ebc);
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* DMA controller */
|
|
enum {
|
|
DMA0_CR0 = 0x100,
|
|
DMA0_CT0 = 0x101,
|
|
DMA0_DA0 = 0x102,
|
|
DMA0_SA0 = 0x103,
|
|
DMA0_SG0 = 0x104,
|
|
DMA0_CR1 = 0x108,
|
|
DMA0_CT1 = 0x109,
|
|
DMA0_DA1 = 0x10A,
|
|
DMA0_SA1 = 0x10B,
|
|
DMA0_SG1 = 0x10C,
|
|
DMA0_CR2 = 0x110,
|
|
DMA0_CT2 = 0x111,
|
|
DMA0_DA2 = 0x112,
|
|
DMA0_SA2 = 0x113,
|
|
DMA0_SG2 = 0x114,
|
|
DMA0_CR3 = 0x118,
|
|
DMA0_CT3 = 0x119,
|
|
DMA0_DA3 = 0x11A,
|
|
DMA0_SA3 = 0x11B,
|
|
DMA0_SG3 = 0x11C,
|
|
DMA0_SR = 0x120,
|
|
DMA0_SGC = 0x123,
|
|
DMA0_SLP = 0x125,
|
|
DMA0_POL = 0x126,
|
|
};
|
|
|
|
typedef struct ppc405_dma_t ppc405_dma_t;
|
|
struct ppc405_dma_t {
|
|
qemu_irq irqs[4];
|
|
uint32_t cr[4];
|
|
uint32_t ct[4];
|
|
uint32_t da[4];
|
|
uint32_t sa[4];
|
|
uint32_t sg[4];
|
|
uint32_t sr;
|
|
uint32_t sgc;
|
|
uint32_t slp;
|
|
uint32_t pol;
|
|
};
|
|
|
|
static target_ulong dcr_read_dma (void *opaque, int dcrn)
|
|
{
|
|
ppc405_dma_t *dma;
|
|
|
|
dma = opaque;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void dcr_write_dma (void *opaque, int dcrn, target_ulong val)
|
|
{
|
|
ppc405_dma_t *dma;
|
|
|
|
dma = opaque;
|
|
}
|
|
|
|
static void ppc405_dma_reset (void *opaque)
|
|
{
|
|
ppc405_dma_t *dma;
|
|
int i;
|
|
|
|
dma = opaque;
|
|
for (i = 0; i < 4; i++) {
|
|
dma->cr[i] = 0x00000000;
|
|
dma->ct[i] = 0x00000000;
|
|
dma->da[i] = 0x00000000;
|
|
dma->sa[i] = 0x00000000;
|
|
dma->sg[i] = 0x00000000;
|
|
}
|
|
dma->sr = 0x00000000;
|
|
dma->sgc = 0x00000000;
|
|
dma->slp = 0x7C000000;
|
|
dma->pol = 0x00000000;
|
|
}
|
|
|
|
void ppc405_dma_init (CPUState *env, qemu_irq irqs[4])
|
|
{
|
|
ppc405_dma_t *dma;
|
|
|
|
dma = qemu_mallocz(sizeof(ppc405_dma_t));
|
|
if (dma != NULL) {
|
|
memcpy(dma->irqs, irqs, 4 * sizeof(qemu_irq));
|
|
ppc405_dma_reset(dma);
|
|
qemu_register_reset(&ppc405_dma_reset, dma);
|
|
ppc_dcr_register(env, DMA0_CR0,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_CT0,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_DA0,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_SA0,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_SG0,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_CR1,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_CT1,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_DA1,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_SA1,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_SG1,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_CR2,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_CT2,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_DA2,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_SA2,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_SG2,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_CR3,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_CT3,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_DA3,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_SA3,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_SG3,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_SR,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_SGC,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_SLP,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
ppc_dcr_register(env, DMA0_POL,
|
|
dma, &dcr_read_dma, &dcr_write_dma);
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* GPIO */
|
|
typedef struct ppc405_gpio_t ppc405_gpio_t;
|
|
struct ppc405_gpio_t {
|
|
target_phys_addr_t base;
|
|
uint32_t or;
|
|
uint32_t tcr;
|
|
uint32_t osrh;
|
|
uint32_t osrl;
|
|
uint32_t tsrh;
|
|
uint32_t tsrl;
|
|
uint32_t odr;
|
|
uint32_t ir;
|
|
uint32_t rr1;
|
|
uint32_t isr1h;
|
|
uint32_t isr1l;
|
|
};
|
|
|
|
static uint32_t ppc405_gpio_readb (void *opaque, target_phys_addr_t addr)
|
|
{
|
|
ppc405_gpio_t *gpio;
|
|
|
|
gpio = opaque;
|
|
#ifdef DEBUG_GPIO
|
|
printf("%s: addr " PADDRX "\n", __func__, addr);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ppc405_gpio_writeb (void *opaque,
|
|
target_phys_addr_t addr, uint32_t value)
|
|
{
|
|
ppc405_gpio_t *gpio;
|
|
|
|
gpio = opaque;
|
|
#ifdef DEBUG_GPIO
|
|
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
|
|
#endif
|
|
}
|
|
|
|
static uint32_t ppc405_gpio_readw (void *opaque, target_phys_addr_t addr)
|
|
{
|
|
ppc405_gpio_t *gpio;
|
|
|
|
gpio = opaque;
|
|
#ifdef DEBUG_GPIO
|
|
printf("%s: addr " PADDRX "\n", __func__, addr);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ppc405_gpio_writew (void *opaque,
|
|
target_phys_addr_t addr, uint32_t value)
|
|
{
|
|
ppc405_gpio_t *gpio;
|
|
|
|
gpio = opaque;
|
|
#ifdef DEBUG_GPIO
|
|
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
|
|
#endif
|
|
}
|
|
|
|
static uint32_t ppc405_gpio_readl (void *opaque, target_phys_addr_t addr)
|
|
{
|
|
ppc405_gpio_t *gpio;
|
|
|
|
gpio = opaque;
|
|
#ifdef DEBUG_GPIO
|
|
printf("%s: addr " PADDRX "\n", __func__, addr);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ppc405_gpio_writel (void *opaque,
|
|
target_phys_addr_t addr, uint32_t value)
|
|
{
|
|
ppc405_gpio_t *gpio;
|
|
|
|
gpio = opaque;
|
|
#ifdef DEBUG_GPIO
|
|
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
|
|
#endif
|
|
}
|
|
|
|
static CPUReadMemoryFunc *ppc405_gpio_read[] = {
|
|
&ppc405_gpio_readb,
|
|
&ppc405_gpio_readw,
|
|
&ppc405_gpio_readl,
|
|
};
|
|
|
|
static CPUWriteMemoryFunc *ppc405_gpio_write[] = {
|
|
&ppc405_gpio_writeb,
|
|
&ppc405_gpio_writew,
|
|
&ppc405_gpio_writel,
|
|
};
|
|
|
|
static void ppc405_gpio_reset (void *opaque)
|
|
{
|
|
ppc405_gpio_t *gpio;
|
|
|
|
gpio = opaque;
|
|
}
|
|
|
|
void ppc405_gpio_init (CPUState *env, ppc4xx_mmio_t *mmio,
|
|
target_phys_addr_t offset)
|
|
{
|
|
ppc405_gpio_t *gpio;
|
|
|
|
gpio = qemu_mallocz(sizeof(ppc405_gpio_t));
|
|
if (gpio != NULL) {
|
|
gpio->base = offset;
|
|
ppc405_gpio_reset(gpio);
|
|
qemu_register_reset(&ppc405_gpio_reset, gpio);
|
|
#ifdef DEBUG_GPIO
|
|
printf("%s: offset=" PADDRX "\n", __func__, offset);
|
|
#endif
|
|
ppc4xx_mmio_register(env, mmio, offset, 0x038,
|
|
ppc405_gpio_read, ppc405_gpio_write, gpio);
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* Serial ports */
|
|
static CPUReadMemoryFunc *serial_mm_read[] = {
|
|
&serial_mm_readb,
|
|
&serial_mm_readw,
|
|
&serial_mm_readl,
|
|
};
|
|
|
|
static CPUWriteMemoryFunc *serial_mm_write[] = {
|
|
&serial_mm_writeb,
|
|
&serial_mm_writew,
|
|
&serial_mm_writel,
|
|
};
|
|
|
|
void ppc405_serial_init (CPUState *env, ppc4xx_mmio_t *mmio,
|
|
target_phys_addr_t offset, qemu_irq irq,
|
|
CharDriverState *chr)
|
|
{
|
|
void *serial;
|
|
|
|
#ifdef DEBUG_SERIAL
|
|
printf("%s: offset=" PADDRX "\n", __func__, offset);
|
|
#endif
|
|
serial = serial_mm_init(offset, 0, irq, chr, 0);
|
|
ppc4xx_mmio_register(env, mmio, offset, 0x008,
|
|
serial_mm_read, serial_mm_write, serial);
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* On Chip Memory */
|
|
enum {
|
|
OCM0_ISARC = 0x018,
|
|
OCM0_ISACNTL = 0x019,
|
|
OCM0_DSARC = 0x01A,
|
|
OCM0_DSACNTL = 0x01B,
|
|
};
|
|
|
|
typedef struct ppc405_ocm_t ppc405_ocm_t;
|
|
struct ppc405_ocm_t {
|
|
target_ulong offset;
|
|
uint32_t isarc;
|
|
uint32_t isacntl;
|
|
uint32_t dsarc;
|
|
uint32_t dsacntl;
|
|
};
|
|
|
|
static void ocm_update_mappings (ppc405_ocm_t *ocm,
|
|
uint32_t isarc, uint32_t isacntl,
|
|
uint32_t dsarc, uint32_t dsacntl)
|
|
{
|
|
#ifdef DEBUG_OCM
|
|
printf("OCM update ISA %08x %08x (%08x %08x) DSA %08x %08x (%08x %08x)\n",
|
|
isarc, isacntl, dsarc, dsacntl,
|
|
ocm->isarc, ocm->isacntl, ocm->dsarc, ocm->dsacntl);
|
|
#endif
|
|
if (ocm->isarc != isarc ||
|
|
(ocm->isacntl & 0x80000000) != (isacntl & 0x80000000)) {
|
|
if (ocm->isacntl & 0x80000000) {
|
|
/* Unmap previously assigned memory region */
|
|
printf("OCM unmap ISA %08x\n", ocm->isarc);
|
|
cpu_register_physical_memory(ocm->isarc, 0x04000000,
|
|
IO_MEM_UNASSIGNED);
|
|
}
|
|
if (isacntl & 0x80000000) {
|
|
/* Map new instruction memory region */
|
|
#ifdef DEBUG_OCM
|
|
printf("OCM map ISA %08x\n", isarc);
|
|
#endif
|
|
cpu_register_physical_memory(isarc, 0x04000000,
|
|
ocm->offset | IO_MEM_RAM);
|
|
}
|
|
}
|
|
if (ocm->dsarc != dsarc ||
|
|
(ocm->dsacntl & 0x80000000) != (dsacntl & 0x80000000)) {
|
|
if (ocm->dsacntl & 0x80000000) {
|
|
/* Beware not to unmap the region we just mapped */
|
|
if (!(isacntl & 0x80000000) || ocm->dsarc != isarc) {
|
|
/* Unmap previously assigned memory region */
|
|
#ifdef DEBUG_OCM
|
|
printf("OCM unmap DSA %08x\n", ocm->dsarc);
|
|
#endif
|
|
cpu_register_physical_memory(ocm->dsarc, 0x04000000,
|
|
IO_MEM_UNASSIGNED);
|
|
}
|
|
}
|
|
if (dsacntl & 0x80000000) {
|
|
/* Beware not to remap the region we just mapped */
|
|
if (!(isacntl & 0x80000000) || dsarc != isarc) {
|
|
/* Map new data memory region */
|
|
#ifdef DEBUG_OCM
|
|
printf("OCM map DSA %08x\n", dsarc);
|
|
#endif
|
|
cpu_register_physical_memory(dsarc, 0x04000000,
|
|
ocm->offset | IO_MEM_RAM);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static target_ulong dcr_read_ocm (void *opaque, int dcrn)
|
|
{
|
|
ppc405_ocm_t *ocm;
|
|
target_ulong ret;
|
|
|
|
ocm = opaque;
|
|
switch (dcrn) {
|
|
case OCM0_ISARC:
|
|
ret = ocm->isarc;
|
|
break;
|
|
case OCM0_ISACNTL:
|
|
ret = ocm->isacntl;
|
|
break;
|
|
case OCM0_DSARC:
|
|
ret = ocm->dsarc;
|
|
break;
|
|
case OCM0_DSACNTL:
|
|
ret = ocm->dsacntl;
|
|
break;
|
|
default:
|
|
ret = 0;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void dcr_write_ocm (void *opaque, int dcrn, target_ulong val)
|
|
{
|
|
ppc405_ocm_t *ocm;
|
|
uint32_t isarc, dsarc, isacntl, dsacntl;
|
|
|
|
ocm = opaque;
|
|
isarc = ocm->isarc;
|
|
dsarc = ocm->dsarc;
|
|
isacntl = ocm->isacntl;
|
|
dsacntl = ocm->dsacntl;
|
|
switch (dcrn) {
|
|
case OCM0_ISARC:
|
|
isarc = val & 0xFC000000;
|
|
break;
|
|
case OCM0_ISACNTL:
|
|
isacntl = val & 0xC0000000;
|
|
break;
|
|
case OCM0_DSARC:
|
|
isarc = val & 0xFC000000;
|
|
break;
|
|
case OCM0_DSACNTL:
|
|
isacntl = val & 0xC0000000;
|
|
break;
|
|
}
|
|
ocm_update_mappings(ocm, isarc, isacntl, dsarc, dsacntl);
|
|
ocm->isarc = isarc;
|
|
ocm->dsarc = dsarc;
|
|
ocm->isacntl = isacntl;
|
|
ocm->dsacntl = dsacntl;
|
|
}
|
|
|
|
static void ocm_reset (void *opaque)
|
|
{
|
|
ppc405_ocm_t *ocm;
|
|
uint32_t isarc, dsarc, isacntl, dsacntl;
|
|
|
|
ocm = opaque;
|
|
isarc = 0x00000000;
|
|
isacntl = 0x00000000;
|
|
dsarc = 0x00000000;
|
|
dsacntl = 0x00000000;
|
|
ocm_update_mappings(ocm, isarc, isacntl, dsarc, dsacntl);
|
|
ocm->isarc = isarc;
|
|
ocm->dsarc = dsarc;
|
|
ocm->isacntl = isacntl;
|
|
ocm->dsacntl = dsacntl;
|
|
}
|
|
|
|
void ppc405_ocm_init (CPUState *env, unsigned long offset)
|
|
{
|
|
ppc405_ocm_t *ocm;
|
|
|
|
ocm = qemu_mallocz(sizeof(ppc405_ocm_t));
|
|
if (ocm != NULL) {
|
|
ocm->offset = offset;
|
|
ocm_reset(ocm);
|
|
qemu_register_reset(&ocm_reset, ocm);
|
|
ppc_dcr_register(env, OCM0_ISARC,
|
|
ocm, &dcr_read_ocm, &dcr_write_ocm);
|
|
ppc_dcr_register(env, OCM0_ISACNTL,
|
|
ocm, &dcr_read_ocm, &dcr_write_ocm);
|
|
ppc_dcr_register(env, OCM0_DSARC,
|
|
ocm, &dcr_read_ocm, &dcr_write_ocm);
|
|
ppc_dcr_register(env, OCM0_DSACNTL,
|
|
ocm, &dcr_read_ocm, &dcr_write_ocm);
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* I2C controller */
|
|
typedef struct ppc4xx_i2c_t ppc4xx_i2c_t;
|
|
struct ppc4xx_i2c_t {
|
|
target_phys_addr_t base;
|
|
qemu_irq irq;
|
|
uint8_t mdata;
|
|
uint8_t lmadr;
|
|
uint8_t hmadr;
|
|
uint8_t cntl;
|
|
uint8_t mdcntl;
|
|
uint8_t sts;
|
|
uint8_t extsts;
|
|
uint8_t sdata;
|
|
uint8_t lsadr;
|
|
uint8_t hsadr;
|
|
uint8_t clkdiv;
|
|
uint8_t intrmsk;
|
|
uint8_t xfrcnt;
|
|
uint8_t xtcntlss;
|
|
uint8_t directcntl;
|
|
};
|
|
|
|
static uint32_t ppc4xx_i2c_readb (void *opaque, target_phys_addr_t addr)
|
|
{
|
|
ppc4xx_i2c_t *i2c;
|
|
uint32_t ret;
|
|
|
|
#ifdef DEBUG_I2C
|
|
printf("%s: addr " PADDRX "\n", __func__, addr);
|
|
#endif
|
|
i2c = opaque;
|
|
switch (addr - i2c->base) {
|
|
case 0x00:
|
|
// i2c_readbyte(&i2c->mdata);
|
|
ret = i2c->mdata;
|
|
break;
|
|
case 0x02:
|
|
ret = i2c->sdata;
|
|
break;
|
|
case 0x04:
|
|
ret = i2c->lmadr;
|
|
break;
|
|
case 0x05:
|
|
ret = i2c->hmadr;
|
|
break;
|
|
case 0x06:
|
|
ret = i2c->cntl;
|
|
break;
|
|
case 0x07:
|
|
ret = i2c->mdcntl;
|
|
break;
|
|
case 0x08:
|
|
ret = i2c->sts;
|
|
break;
|
|
case 0x09:
|
|
ret = i2c->extsts;
|
|
break;
|
|
case 0x0A:
|
|
ret = i2c->lsadr;
|
|
break;
|
|
case 0x0B:
|
|
ret = i2c->hsadr;
|
|
break;
|
|
case 0x0C:
|
|
ret = i2c->clkdiv;
|
|
break;
|
|
case 0x0D:
|
|
ret = i2c->intrmsk;
|
|
break;
|
|
case 0x0E:
|
|
ret = i2c->xfrcnt;
|
|
break;
|
|
case 0x0F:
|
|
ret = i2c->xtcntlss;
|
|
break;
|
|
case 0x10:
|
|
ret = i2c->directcntl;
|
|
break;
|
|
default:
|
|
ret = 0x00;
|
|
break;
|
|
}
|
|
#ifdef DEBUG_I2C
|
|
printf("%s: addr " PADDRX " %02x\n", __func__, addr, ret);
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ppc4xx_i2c_writeb (void *opaque,
|
|
target_phys_addr_t addr, uint32_t value)
|
|
{
|
|
ppc4xx_i2c_t *i2c;
|
|
|
|
#ifdef DEBUG_I2C
|
|
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
|
|
#endif
|
|
i2c = opaque;
|
|
switch (addr - i2c->base) {
|
|
case 0x00:
|
|
i2c->mdata = value;
|
|
// i2c_sendbyte(&i2c->mdata);
|
|
break;
|
|
case 0x02:
|
|
i2c->sdata = value;
|
|
break;
|
|
case 0x04:
|
|
i2c->lmadr = value;
|
|
break;
|
|
case 0x05:
|
|
i2c->hmadr = value;
|
|
break;
|
|
case 0x06:
|
|
i2c->cntl = value;
|
|
break;
|
|
case 0x07:
|
|
i2c->mdcntl = value & 0xDF;
|
|
break;
|
|
case 0x08:
|
|
i2c->sts &= ~(value & 0x0A);
|
|
break;
|
|
case 0x09:
|
|
i2c->extsts &= ~(value & 0x8F);
|
|
break;
|
|
case 0x0A:
|
|
i2c->lsadr = value;
|
|
break;
|
|
case 0x0B:
|
|
i2c->hsadr = value;
|
|
break;
|
|
case 0x0C:
|
|
i2c->clkdiv = value;
|
|
break;
|
|
case 0x0D:
|
|
i2c->intrmsk = value;
|
|
break;
|
|
case 0x0E:
|
|
i2c->xfrcnt = value & 0x77;
|
|
break;
|
|
case 0x0F:
|
|
i2c->xtcntlss = value;
|
|
break;
|
|
case 0x10:
|
|
i2c->directcntl = value & 0x7;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static uint32_t ppc4xx_i2c_readw (void *opaque, target_phys_addr_t addr)
|
|
{
|
|
uint32_t ret;
|
|
|
|
#ifdef DEBUG_I2C
|
|
printf("%s: addr " PADDRX "\n", __func__, addr);
|
|
#endif
|
|
ret = ppc4xx_i2c_readb(opaque, addr) << 8;
|
|
ret |= ppc4xx_i2c_readb(opaque, addr + 1);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ppc4xx_i2c_writew (void *opaque,
|
|
target_phys_addr_t addr, uint32_t value)
|
|
{
|
|
#ifdef DEBUG_I2C
|
|
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
|
|
#endif
|
|
ppc4xx_i2c_writeb(opaque, addr, value >> 8);
|
|
ppc4xx_i2c_writeb(opaque, addr + 1, value);
|
|
}
|
|
|
|
static uint32_t ppc4xx_i2c_readl (void *opaque, target_phys_addr_t addr)
|
|
{
|
|
uint32_t ret;
|
|
|
|
#ifdef DEBUG_I2C
|
|
printf("%s: addr " PADDRX "\n", __func__, addr);
|
|
#endif
|
|
ret = ppc4xx_i2c_readb(opaque, addr) << 24;
|
|
ret |= ppc4xx_i2c_readb(opaque, addr + 1) << 16;
|
|
ret |= ppc4xx_i2c_readb(opaque, addr + 2) << 8;
|
|
ret |= ppc4xx_i2c_readb(opaque, addr + 3);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ppc4xx_i2c_writel (void *opaque,
|
|
target_phys_addr_t addr, uint32_t value)
|
|
{
|
|
#ifdef DEBUG_I2C
|
|
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
|
|
#endif
|
|
ppc4xx_i2c_writeb(opaque, addr, value >> 24);
|
|
ppc4xx_i2c_writeb(opaque, addr + 1, value >> 16);
|
|
ppc4xx_i2c_writeb(opaque, addr + 2, value >> 8);
|
|
ppc4xx_i2c_writeb(opaque, addr + 3, value);
|
|
}
|
|
|
|
static CPUReadMemoryFunc *i2c_read[] = {
|
|
&ppc4xx_i2c_readb,
|
|
&ppc4xx_i2c_readw,
|
|
&ppc4xx_i2c_readl,
|
|
};
|
|
|
|
static CPUWriteMemoryFunc *i2c_write[] = {
|
|
&ppc4xx_i2c_writeb,
|
|
&ppc4xx_i2c_writew,
|
|
&ppc4xx_i2c_writel,
|
|
};
|
|
|
|
static void ppc4xx_i2c_reset (void *opaque)
|
|
{
|
|
ppc4xx_i2c_t *i2c;
|
|
|
|
i2c = opaque;
|
|
i2c->mdata = 0x00;
|
|
i2c->sdata = 0x00;
|
|
i2c->cntl = 0x00;
|
|
i2c->mdcntl = 0x00;
|
|
i2c->sts = 0x00;
|
|
i2c->extsts = 0x00;
|
|
i2c->clkdiv = 0x00;
|
|
i2c->xfrcnt = 0x00;
|
|
i2c->directcntl = 0x0F;
|
|
}
|
|
|
|
void ppc405_i2c_init (CPUState *env, ppc4xx_mmio_t *mmio,
|
|
target_phys_addr_t offset, qemu_irq irq)
|
|
{
|
|
ppc4xx_i2c_t *i2c;
|
|
|
|
i2c = qemu_mallocz(sizeof(ppc4xx_i2c_t));
|
|
if (i2c != NULL) {
|
|
i2c->base = offset;
|
|
i2c->irq = irq;
|
|
ppc4xx_i2c_reset(i2c);
|
|
#ifdef DEBUG_I2C
|
|
printf("%s: offset=" PADDRX "\n", __func__, offset);
|
|
#endif
|
|
ppc4xx_mmio_register(env, mmio, offset, 0x011,
|
|
i2c_read, i2c_write, i2c);
|
|
qemu_register_reset(ppc4xx_i2c_reset, i2c);
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* General purpose timers */
|
|
typedef struct ppc4xx_gpt_t ppc4xx_gpt_t;
|
|
struct ppc4xx_gpt_t {
|
|
target_phys_addr_t base;
|
|
int64_t tb_offset;
|
|
uint32_t tb_freq;
|
|
struct QEMUTimer *timer;
|
|
qemu_irq irqs[5];
|
|
uint32_t oe;
|
|
uint32_t ol;
|
|
uint32_t im;
|
|
uint32_t is;
|
|
uint32_t ie;
|
|
uint32_t comp[5];
|
|
uint32_t mask[5];
|
|
};
|
|
|
|
static uint32_t ppc4xx_gpt_readb (void *opaque, target_phys_addr_t addr)
|
|
{
|
|
#ifdef DEBUG_GPT
|
|
printf("%s: addr " PADDRX "\n", __func__, addr);
|
|
#endif
|
|
/* XXX: generate a bus fault */
|
|
return -1;
|
|
}
|
|
|
|
static void ppc4xx_gpt_writeb (void *opaque,
|
|
target_phys_addr_t addr, uint32_t value)
|
|
{
|
|
#ifdef DEBUG_I2C
|
|
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
|
|
#endif
|
|
/* XXX: generate a bus fault */
|
|
}
|
|
|
|
static uint32_t ppc4xx_gpt_readw (void *opaque, target_phys_addr_t addr)
|
|
{
|
|
#ifdef DEBUG_GPT
|
|
printf("%s: addr " PADDRX "\n", __func__, addr);
|
|
#endif
|
|
/* XXX: generate a bus fault */
|
|
return -1;
|
|
}
|
|
|
|
static void ppc4xx_gpt_writew (void *opaque,
|
|
target_phys_addr_t addr, uint32_t value)
|
|
{
|
|
#ifdef DEBUG_I2C
|
|
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
|
|
#endif
|
|
/* XXX: generate a bus fault */
|
|
}
|
|
|
|
static int ppc4xx_gpt_compare (ppc4xx_gpt_t *gpt, int n)
|
|
{
|
|
/* XXX: TODO */
|
|
return 0;
|
|
}
|
|
|
|
static void ppc4xx_gpt_set_output (ppc4xx_gpt_t *gpt, int n, int level)
|
|
{
|
|
/* XXX: TODO */
|
|
}
|
|
|
|
static void ppc4xx_gpt_set_outputs (ppc4xx_gpt_t *gpt)
|
|
{
|
|
uint32_t mask;
|
|
int i;
|
|
|
|
mask = 0x80000000;
|
|
for (i = 0; i < 5; i++) {
|
|
if (gpt->oe & mask) {
|
|
/* Output is enabled */
|
|
if (ppc4xx_gpt_compare(gpt, i)) {
|
|
/* Comparison is OK */
|
|
ppc4xx_gpt_set_output(gpt, i, gpt->ol & mask);
|
|
} else {
|
|
/* Comparison is KO */
|
|
ppc4xx_gpt_set_output(gpt, i, gpt->ol & mask ? 0 : 1);
|
|
}
|
|
}
|
|
mask = mask >> 1;
|
|
}
|
|
}
|
|
|
|
static void ppc4xx_gpt_set_irqs (ppc4xx_gpt_t *gpt)
|
|
{
|
|
uint32_t mask;
|
|
int i;
|
|
|
|
mask = 0x00008000;
|
|
for (i = 0; i < 5; i++) {
|
|
if (gpt->is & gpt->im & mask)
|
|
qemu_irq_raise(gpt->irqs[i]);
|
|
else
|
|
qemu_irq_lower(gpt->irqs[i]);
|
|
mask = mask >> 1;
|
|
}
|
|
}
|
|
|
|
static void ppc4xx_gpt_compute_timer (ppc4xx_gpt_t *gpt)
|
|
{
|
|
/* XXX: TODO */
|
|
}
|
|
|
|
static uint32_t ppc4xx_gpt_readl (void *opaque, target_phys_addr_t addr)
|
|
{
|
|
ppc4xx_gpt_t *gpt;
|
|
uint32_t ret;
|
|
int idx;
|
|
|
|
#ifdef DEBUG_GPT
|
|
printf("%s: addr " PADDRX "\n", __func__, addr);
|
|
#endif
|
|
gpt = opaque;
|
|
switch (addr - gpt->base) {
|
|
case 0x00:
|
|
/* Time base counter */
|
|
ret = muldiv64(qemu_get_clock(vm_clock) + gpt->tb_offset,
|
|
gpt->tb_freq, ticks_per_sec);
|
|
break;
|
|
case 0x10:
|
|
/* Output enable */
|
|
ret = gpt->oe;
|
|
break;
|
|
case 0x14:
|
|
/* Output level */
|
|
ret = gpt->ol;
|
|
break;
|
|
case 0x18:
|
|
/* Interrupt mask */
|
|
ret = gpt->im;
|
|
break;
|
|
case 0x1C:
|
|
case 0x20:
|
|
/* Interrupt status */
|
|
ret = gpt->is;
|
|
break;
|
|
case 0x24:
|
|
/* Interrupt enable */
|
|
ret = gpt->ie;
|
|
break;
|
|
case 0x80 ... 0x90:
|
|
/* Compare timer */
|
|
idx = ((addr - gpt->base) - 0x80) >> 2;
|
|
ret = gpt->comp[idx];
|
|
break;
|
|
case 0xC0 ... 0xD0:
|
|
/* Compare mask */
|
|
idx = ((addr - gpt->base) - 0xC0) >> 2;
|
|
ret = gpt->mask[idx];
|
|
break;
|
|
default:
|
|
ret = -1;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ppc4xx_gpt_writel (void *opaque,
|
|
target_phys_addr_t addr, uint32_t value)
|
|
{
|
|
ppc4xx_gpt_t *gpt;
|
|
int idx;
|
|
|
|
#ifdef DEBUG_I2C
|
|
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
|
|
#endif
|
|
gpt = opaque;
|
|
switch (addr - gpt->base) {
|
|
case 0x00:
|
|
/* Time base counter */
|
|
gpt->tb_offset = muldiv64(value, ticks_per_sec, gpt->tb_freq)
|
|
- qemu_get_clock(vm_clock);
|
|
ppc4xx_gpt_compute_timer(gpt);
|
|
break;
|
|
case 0x10:
|
|
/* Output enable */
|
|
gpt->oe = value & 0xF8000000;
|
|
ppc4xx_gpt_set_outputs(gpt);
|
|
break;
|
|
case 0x14:
|
|
/* Output level */
|
|
gpt->ol = value & 0xF8000000;
|
|
ppc4xx_gpt_set_outputs(gpt);
|
|
break;
|
|
case 0x18:
|
|
/* Interrupt mask */
|
|
gpt->im = value & 0x0000F800;
|
|
break;
|
|
case 0x1C:
|
|
/* Interrupt status set */
|
|
gpt->is |= value & 0x0000F800;
|
|
ppc4xx_gpt_set_irqs(gpt);
|
|
break;
|
|
case 0x20:
|
|
/* Interrupt status clear */
|
|
gpt->is &= ~(value & 0x0000F800);
|
|
ppc4xx_gpt_set_irqs(gpt);
|
|
break;
|
|
case 0x24:
|
|
/* Interrupt enable */
|
|
gpt->ie = value & 0x0000F800;
|
|
ppc4xx_gpt_set_irqs(gpt);
|
|
break;
|
|
case 0x80 ... 0x90:
|
|
/* Compare timer */
|
|
idx = ((addr - gpt->base) - 0x80) >> 2;
|
|
gpt->comp[idx] = value & 0xF8000000;
|
|
ppc4xx_gpt_compute_timer(gpt);
|
|
break;
|
|
case 0xC0 ... 0xD0:
|
|
/* Compare mask */
|
|
idx = ((addr - gpt->base) - 0xC0) >> 2;
|
|
gpt->mask[idx] = value & 0xF8000000;
|
|
ppc4xx_gpt_compute_timer(gpt);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static CPUReadMemoryFunc *gpt_read[] = {
|
|
&ppc4xx_gpt_readb,
|
|
&ppc4xx_gpt_readw,
|
|
&ppc4xx_gpt_readl,
|
|
};
|
|
|
|
static CPUWriteMemoryFunc *gpt_write[] = {
|
|
&ppc4xx_gpt_writeb,
|
|
&ppc4xx_gpt_writew,
|
|
&ppc4xx_gpt_writel,
|
|
};
|
|
|
|
static void ppc4xx_gpt_cb (void *opaque)
|
|
{
|
|
ppc4xx_gpt_t *gpt;
|
|
|
|
gpt = opaque;
|
|
ppc4xx_gpt_set_irqs(gpt);
|
|
ppc4xx_gpt_set_outputs(gpt);
|
|
ppc4xx_gpt_compute_timer(gpt);
|
|
}
|
|
|
|
static void ppc4xx_gpt_reset (void *opaque)
|
|
{
|
|
ppc4xx_gpt_t *gpt;
|
|
int i;
|
|
|
|
gpt = opaque;
|
|
qemu_del_timer(gpt->timer);
|
|
gpt->oe = 0x00000000;
|
|
gpt->ol = 0x00000000;
|
|
gpt->im = 0x00000000;
|
|
gpt->is = 0x00000000;
|
|
gpt->ie = 0x00000000;
|
|
for (i = 0; i < 5; i++) {
|
|
gpt->comp[i] = 0x00000000;
|
|
gpt->mask[i] = 0x00000000;
|
|
}
|
|
}
|
|
|
|
void ppc4xx_gpt_init (CPUState *env, ppc4xx_mmio_t *mmio,
|
|
target_phys_addr_t offset, qemu_irq irqs[5])
|
|
{
|
|
ppc4xx_gpt_t *gpt;
|
|
int i;
|
|
|
|
gpt = qemu_mallocz(sizeof(ppc4xx_gpt_t));
|
|
if (gpt != NULL) {
|
|
gpt->base = offset;
|
|
for (i = 0; i < 5; i++)
|
|
gpt->irqs[i] = irqs[i];
|
|
gpt->timer = qemu_new_timer(vm_clock, &ppc4xx_gpt_cb, gpt);
|
|
ppc4xx_gpt_reset(gpt);
|
|
#ifdef DEBUG_GPT
|
|
printf("%s: offset=" PADDRX "\n", __func__, offset);
|
|
#endif
|
|
ppc4xx_mmio_register(env, mmio, offset, 0x0D4,
|
|
gpt_read, gpt_write, gpt);
|
|
qemu_register_reset(ppc4xx_gpt_reset, gpt);
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* MAL */
|
|
enum {
|
|
MAL0_CFG = 0x180,
|
|
MAL0_ESR = 0x181,
|
|
MAL0_IER = 0x182,
|
|
MAL0_TXCASR = 0x184,
|
|
MAL0_TXCARR = 0x185,
|
|
MAL0_TXEOBISR = 0x186,
|
|
MAL0_TXDEIR = 0x187,
|
|
MAL0_RXCASR = 0x190,
|
|
MAL0_RXCARR = 0x191,
|
|
MAL0_RXEOBISR = 0x192,
|
|
MAL0_RXDEIR = 0x193,
|
|
MAL0_TXCTP0R = 0x1A0,
|
|
MAL0_TXCTP1R = 0x1A1,
|
|
MAL0_TXCTP2R = 0x1A2,
|
|
MAL0_TXCTP3R = 0x1A3,
|
|
MAL0_RXCTP0R = 0x1C0,
|
|
MAL0_RXCTP1R = 0x1C1,
|
|
MAL0_RCBS0 = 0x1E0,
|
|
MAL0_RCBS1 = 0x1E1,
|
|
};
|
|
|
|
typedef struct ppc40x_mal_t ppc40x_mal_t;
|
|
struct ppc40x_mal_t {
|
|
qemu_irq irqs[4];
|
|
uint32_t cfg;
|
|
uint32_t esr;
|
|
uint32_t ier;
|
|
uint32_t txcasr;
|
|
uint32_t txcarr;
|
|
uint32_t txeobisr;
|
|
uint32_t txdeir;
|
|
uint32_t rxcasr;
|
|
uint32_t rxcarr;
|
|
uint32_t rxeobisr;
|
|
uint32_t rxdeir;
|
|
uint32_t txctpr[4];
|
|
uint32_t rxctpr[2];
|
|
uint32_t rcbs[2];
|
|
};
|
|
|
|
static void ppc40x_mal_reset (void *opaque);
|
|
|
|
static target_ulong dcr_read_mal (void *opaque, int dcrn)
|
|
{
|
|
ppc40x_mal_t *mal;
|
|
target_ulong ret;
|
|
|
|
mal = opaque;
|
|
switch (dcrn) {
|
|
case MAL0_CFG:
|
|
ret = mal->cfg;
|
|
break;
|
|
case MAL0_ESR:
|
|
ret = mal->esr;
|
|
break;
|
|
case MAL0_IER:
|
|
ret = mal->ier;
|
|
break;
|
|
case MAL0_TXCASR:
|
|
ret = mal->txcasr;
|
|
break;
|
|
case MAL0_TXCARR:
|
|
ret = mal->txcarr;
|
|
break;
|
|
case MAL0_TXEOBISR:
|
|
ret = mal->txeobisr;
|
|
break;
|
|
case MAL0_TXDEIR:
|
|
ret = mal->txdeir;
|
|
break;
|
|
case MAL0_RXCASR:
|
|
ret = mal->rxcasr;
|
|
break;
|
|
case MAL0_RXCARR:
|
|
ret = mal->rxcarr;
|
|
break;
|
|
case MAL0_RXEOBISR:
|
|
ret = mal->rxeobisr;
|
|
break;
|
|
case MAL0_RXDEIR:
|
|
ret = mal->rxdeir;
|
|
break;
|
|
case MAL0_TXCTP0R:
|
|
ret = mal->txctpr[0];
|
|
break;
|
|
case MAL0_TXCTP1R:
|
|
ret = mal->txctpr[1];
|
|
break;
|
|
case MAL0_TXCTP2R:
|
|
ret = mal->txctpr[2];
|
|
break;
|
|
case MAL0_TXCTP3R:
|
|
ret = mal->txctpr[3];
|
|
break;
|
|
case MAL0_RXCTP0R:
|
|
ret = mal->rxctpr[0];
|
|
break;
|
|
case MAL0_RXCTP1R:
|
|
ret = mal->rxctpr[1];
|
|
break;
|
|
case MAL0_RCBS0:
|
|
ret = mal->rcbs[0];
|
|
break;
|
|
case MAL0_RCBS1:
|
|
ret = mal->rcbs[1];
|
|
break;
|
|
default:
|
|
ret = 0;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void dcr_write_mal (void *opaque, int dcrn, target_ulong val)
|
|
{
|
|
ppc40x_mal_t *mal;
|
|
int idx;
|
|
|
|
mal = opaque;
|
|
switch (dcrn) {
|
|
case MAL0_CFG:
|
|
if (val & 0x80000000)
|
|
ppc40x_mal_reset(mal);
|
|
mal->cfg = val & 0x00FFC087;
|
|
break;
|
|
case MAL0_ESR:
|
|
/* Read/clear */
|
|
mal->esr &= ~val;
|
|
break;
|
|
case MAL0_IER:
|
|
mal->ier = val & 0x0000001F;
|
|
break;
|
|
case MAL0_TXCASR:
|
|
mal->txcasr = val & 0xF0000000;
|
|
break;
|
|
case MAL0_TXCARR:
|
|
mal->txcarr = val & 0xF0000000;
|
|
break;
|
|
case MAL0_TXEOBISR:
|
|
/* Read/clear */
|
|
mal->txeobisr &= ~val;
|
|
break;
|
|
case MAL0_TXDEIR:
|
|
/* Read/clear */
|
|
mal->txdeir &= ~val;
|
|
break;
|
|
case MAL0_RXCASR:
|
|
mal->rxcasr = val & 0xC0000000;
|
|
break;
|
|
case MAL0_RXCARR:
|
|
mal->rxcarr = val & 0xC0000000;
|
|
break;
|
|
case MAL0_RXEOBISR:
|
|
/* Read/clear */
|
|
mal->rxeobisr &= ~val;
|
|
break;
|
|
case MAL0_RXDEIR:
|
|
/* Read/clear */
|
|
mal->rxdeir &= ~val;
|
|
break;
|
|
case MAL0_TXCTP0R:
|
|
idx = 0;
|
|
goto update_tx_ptr;
|
|
case MAL0_TXCTP1R:
|
|
idx = 1;
|
|
goto update_tx_ptr;
|
|
case MAL0_TXCTP2R:
|
|
idx = 2;
|
|
goto update_tx_ptr;
|
|
case MAL0_TXCTP3R:
|
|
idx = 3;
|
|
update_tx_ptr:
|
|
mal->txctpr[idx] = val;
|
|
break;
|
|
case MAL0_RXCTP0R:
|
|
idx = 0;
|
|
goto update_rx_ptr;
|
|
case MAL0_RXCTP1R:
|
|
idx = 1;
|
|
update_rx_ptr:
|
|
mal->rxctpr[idx] = val;
|
|
break;
|
|
case MAL0_RCBS0:
|
|
idx = 0;
|
|
goto update_rx_size;
|
|
case MAL0_RCBS1:
|
|
idx = 1;
|
|
update_rx_size:
|
|
mal->rcbs[idx] = val & 0x000000FF;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void ppc40x_mal_reset (void *opaque)
|
|
{
|
|
ppc40x_mal_t *mal;
|
|
|
|
mal = opaque;
|
|
mal->cfg = 0x0007C000;
|
|
mal->esr = 0x00000000;
|
|
mal->ier = 0x00000000;
|
|
mal->rxcasr = 0x00000000;
|
|
mal->rxdeir = 0x00000000;
|
|
mal->rxeobisr = 0x00000000;
|
|
mal->txcasr = 0x00000000;
|
|
mal->txdeir = 0x00000000;
|
|
mal->txeobisr = 0x00000000;
|
|
}
|
|
|
|
void ppc405_mal_init (CPUState *env, qemu_irq irqs[4])
|
|
{
|
|
ppc40x_mal_t *mal;
|
|
int i;
|
|
|
|
mal = qemu_mallocz(sizeof(ppc40x_mal_t));
|
|
if (mal != NULL) {
|
|
for (i = 0; i < 4; i++)
|
|
mal->irqs[i] = irqs[i];
|
|
ppc40x_mal_reset(mal);
|
|
qemu_register_reset(&ppc40x_mal_reset, mal);
|
|
ppc_dcr_register(env, MAL0_CFG,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_ESR,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_IER,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_TXCASR,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_TXCARR,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_TXEOBISR,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_TXDEIR,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_RXCASR,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_RXCARR,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_RXEOBISR,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_RXDEIR,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_TXCTP0R,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_TXCTP1R,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_TXCTP2R,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_TXCTP3R,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_RXCTP0R,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_RXCTP1R,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_RCBS0,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
ppc_dcr_register(env, MAL0_RCBS1,
|
|
mal, &dcr_read_mal, &dcr_write_mal);
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* SPR */
|
|
void ppc40x_core_reset (CPUState *env)
|
|
{
|
|
target_ulong dbsr;
|
|
|
|
printf("Reset PowerPC core\n");
|
|
env->interrupt_request |= CPU_INTERRUPT_EXITTB;
|
|
/* XXX: TOFIX */
|
|
#if 0
|
|
cpu_ppc_reset(env);
|
|
#else
|
|
qemu_system_reset_request();
|
|
#endif
|
|
dbsr = env->spr[SPR_40x_DBSR];
|
|
dbsr &= ~0x00000300;
|
|
dbsr |= 0x00000100;
|
|
env->spr[SPR_40x_DBSR] = dbsr;
|
|
}
|
|
|
|
void ppc40x_chip_reset (CPUState *env)
|
|
{
|
|
target_ulong dbsr;
|
|
|
|
printf("Reset PowerPC chip\n");
|
|
env->interrupt_request |= CPU_INTERRUPT_EXITTB;
|
|
/* XXX: TOFIX */
|
|
#if 0
|
|
cpu_ppc_reset(env);
|
|
#else
|
|
qemu_system_reset_request();
|
|
#endif
|
|
/* XXX: TODO reset all internal peripherals */
|
|
dbsr = env->spr[SPR_40x_DBSR];
|
|
dbsr &= ~0x00000300;
|
|
dbsr |= 0x00000200;
|
|
env->spr[SPR_40x_DBSR] = dbsr;
|
|
}
|
|
|
|
void ppc40x_system_reset (CPUState *env)
|
|
{
|
|
printf("Reset PowerPC system\n");
|
|
qemu_system_reset_request();
|
|
}
|
|
|
|
void store_40x_dbcr0 (CPUState *env, uint32_t val)
|
|
{
|
|
switch ((val >> 28) & 0x3) {
|
|
case 0x0:
|
|
/* No action */
|
|
break;
|
|
case 0x1:
|
|
/* Core reset */
|
|
ppc40x_core_reset(env);
|
|
break;
|
|
case 0x2:
|
|
/* Chip reset */
|
|
ppc40x_chip_reset(env);
|
|
break;
|
|
case 0x3:
|
|
/* System reset */
|
|
ppc40x_system_reset(env);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* PowerPC 405CR */
|
|
enum {
|
|
PPC405CR_CPC0_PLLMR = 0x0B0,
|
|
PPC405CR_CPC0_CR0 = 0x0B1,
|
|
PPC405CR_CPC0_CR1 = 0x0B2,
|
|
PPC405CR_CPC0_PSR = 0x0B4,
|
|
PPC405CR_CPC0_JTAGID = 0x0B5,
|
|
PPC405CR_CPC0_ER = 0x0B9,
|
|
PPC405CR_CPC0_FR = 0x0BA,
|
|
PPC405CR_CPC0_SR = 0x0BB,
|
|
};
|
|
|
|
enum {
|
|
PPC405CR_CPU_CLK = 0,
|
|
PPC405CR_TMR_CLK = 1,
|
|
PPC405CR_PLB_CLK = 2,
|
|
PPC405CR_SDRAM_CLK = 3,
|
|
PPC405CR_OPB_CLK = 4,
|
|
PPC405CR_EXT_CLK = 5,
|
|
PPC405CR_UART_CLK = 6,
|
|
PPC405CR_CLK_NB = 7,
|
|
};
|
|
|
|
typedef struct ppc405cr_cpc_t ppc405cr_cpc_t;
|
|
struct ppc405cr_cpc_t {
|
|
clk_setup_t clk_setup[PPC405CR_CLK_NB];
|
|
uint32_t sysclk;
|
|
uint32_t psr;
|
|
uint32_t cr0;
|
|
uint32_t cr1;
|
|
uint32_t jtagid;
|
|
uint32_t pllmr;
|
|
uint32_t er;
|
|
uint32_t fr;
|
|
};
|
|
|
|
static void ppc405cr_clk_setup (ppc405cr_cpc_t *cpc)
|
|
{
|
|
uint64_t VCO_out, PLL_out;
|
|
uint32_t CPU_clk, TMR_clk, SDRAM_clk, PLB_clk, OPB_clk, EXT_clk, UART_clk;
|
|
int M, D0, D1, D2;
|
|
|
|
D0 = ((cpc->pllmr >> 26) & 0x3) + 1; /* CBDV */
|
|
if (cpc->pllmr & 0x80000000) {
|
|
D1 = (((cpc->pllmr >> 20) - 1) & 0xF) + 1; /* FBDV */
|
|
D2 = 8 - ((cpc->pllmr >> 16) & 0x7); /* FWDVA */
|
|
M = D0 * D1 * D2;
|
|
VCO_out = cpc->sysclk * M;
|
|
if (VCO_out < 400000000 || VCO_out > 800000000) {
|
|
/* PLL cannot lock */
|
|
cpc->pllmr &= ~0x80000000;
|
|
goto bypass_pll;
|
|
}
|
|
PLL_out = VCO_out / D2;
|
|
} else {
|
|
/* Bypass PLL */
|
|
bypass_pll:
|
|
M = D0;
|
|
PLL_out = cpc->sysclk * M;
|
|
}
|
|
CPU_clk = PLL_out;
|
|
if (cpc->cr1 & 0x00800000)
|
|
TMR_clk = cpc->sysclk; /* Should have a separate clock */
|
|
else
|
|
TMR_clk = CPU_clk;
|
|
PLB_clk = CPU_clk / D0;
|
|
SDRAM_clk = PLB_clk;
|
|
D0 = ((cpc->pllmr >> 10) & 0x3) + 1;
|
|
OPB_clk = PLB_clk / D0;
|
|
D0 = ((cpc->pllmr >> 24) & 0x3) + 2;
|
|
EXT_clk = PLB_clk / D0;
|
|
D0 = ((cpc->cr0 >> 1) & 0x1F) + 1;
|
|
UART_clk = CPU_clk / D0;
|
|
/* Setup CPU clocks */
|
|
clk_setup(&cpc->clk_setup[PPC405CR_CPU_CLK], CPU_clk);
|
|
/* Setup time-base clock */
|
|
clk_setup(&cpc->clk_setup[PPC405CR_TMR_CLK], TMR_clk);
|
|
/* Setup PLB clock */
|
|
clk_setup(&cpc->clk_setup[PPC405CR_PLB_CLK], PLB_clk);
|
|
/* Setup SDRAM clock */
|
|
clk_setup(&cpc->clk_setup[PPC405CR_SDRAM_CLK], SDRAM_clk);
|
|
/* Setup OPB clock */
|
|
clk_setup(&cpc->clk_setup[PPC405CR_OPB_CLK], OPB_clk);
|
|
/* Setup external clock */
|
|
clk_setup(&cpc->clk_setup[PPC405CR_EXT_CLK], EXT_clk);
|
|
/* Setup UART clock */
|
|
clk_setup(&cpc->clk_setup[PPC405CR_UART_CLK], UART_clk);
|
|
}
|
|
|
|
static target_ulong dcr_read_crcpc (void *opaque, int dcrn)
|
|
{
|
|
ppc405cr_cpc_t *cpc;
|
|
target_ulong ret;
|
|
|
|
cpc = opaque;
|
|
switch (dcrn) {
|
|
case PPC405CR_CPC0_PLLMR:
|
|
ret = cpc->pllmr;
|
|
break;
|
|
case PPC405CR_CPC0_CR0:
|
|
ret = cpc->cr0;
|
|
break;
|
|
case PPC405CR_CPC0_CR1:
|
|
ret = cpc->cr1;
|
|
break;
|
|
case PPC405CR_CPC0_PSR:
|
|
ret = cpc->psr;
|
|
break;
|
|
case PPC405CR_CPC0_JTAGID:
|
|
ret = cpc->jtagid;
|
|
break;
|
|
case PPC405CR_CPC0_ER:
|
|
ret = cpc->er;
|
|
break;
|
|
case PPC405CR_CPC0_FR:
|
|
ret = cpc->fr;
|
|
break;
|
|
case PPC405CR_CPC0_SR:
|
|
ret = ~(cpc->er | cpc->fr) & 0xFFFF0000;
|
|
break;
|
|
default:
|
|
/* Avoid gcc warning */
|
|
ret = 0;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void dcr_write_crcpc (void *opaque, int dcrn, target_ulong val)
|
|
{
|
|
ppc405cr_cpc_t *cpc;
|
|
|
|
cpc = opaque;
|
|
switch (dcrn) {
|
|
case PPC405CR_CPC0_PLLMR:
|
|
cpc->pllmr = val & 0xFFF77C3F;
|
|
break;
|
|
case PPC405CR_CPC0_CR0:
|
|
cpc->cr0 = val & 0x0FFFFFFE;
|
|
break;
|
|
case PPC405CR_CPC0_CR1:
|
|
cpc->cr1 = val & 0x00800000;
|
|
break;
|
|
case PPC405CR_CPC0_PSR:
|
|
/* Read-only */
|
|
break;
|
|
case PPC405CR_CPC0_JTAGID:
|
|
/* Read-only */
|
|
break;
|
|
case PPC405CR_CPC0_ER:
|
|
cpc->er = val & 0xBFFC0000;
|
|
break;
|
|
case PPC405CR_CPC0_FR:
|
|
cpc->fr = val & 0xBFFC0000;
|
|
break;
|
|
case PPC405CR_CPC0_SR:
|
|
/* Read-only */
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void ppc405cr_cpc_reset (void *opaque)
|
|
{
|
|
ppc405cr_cpc_t *cpc;
|
|
int D;
|
|
|
|
cpc = opaque;
|
|
/* Compute PLLMR value from PSR settings */
|
|
cpc->pllmr = 0x80000000;
|
|
/* PFWD */
|
|
switch ((cpc->psr >> 30) & 3) {
|
|
case 0:
|
|
/* Bypass */
|
|
cpc->pllmr &= ~0x80000000;
|
|
break;
|
|
case 1:
|
|
/* Divide by 3 */
|
|
cpc->pllmr |= 5 << 16;
|
|
break;
|
|
case 2:
|
|
/* Divide by 4 */
|
|
cpc->pllmr |= 4 << 16;
|
|
break;
|
|
case 3:
|
|
/* Divide by 6 */
|
|
cpc->pllmr |= 2 << 16;
|
|
break;
|
|
}
|
|
/* PFBD */
|
|
D = (cpc->psr >> 28) & 3;
|
|
cpc->pllmr |= (D + 1) << 20;
|
|
/* PT */
|
|
D = (cpc->psr >> 25) & 7;
|
|
switch (D) {
|
|
case 0x2:
|
|
cpc->pllmr |= 0x13;
|
|
break;
|
|
case 0x4:
|
|
cpc->pllmr |= 0x15;
|
|
break;
|
|
case 0x5:
|
|
cpc->pllmr |= 0x16;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
/* PDC */
|
|
D = (cpc->psr >> 23) & 3;
|
|
cpc->pllmr |= D << 26;
|
|
/* ODP */
|
|
D = (cpc->psr >> 21) & 3;
|
|
cpc->pllmr |= D << 10;
|
|
/* EBPD */
|
|
D = (cpc->psr >> 17) & 3;
|
|
cpc->pllmr |= D << 24;
|
|
cpc->cr0 = 0x0000003C;
|
|
cpc->cr1 = 0x2B0D8800;
|
|
cpc->er = 0x00000000;
|
|
cpc->fr = 0x00000000;
|
|
ppc405cr_clk_setup(cpc);
|
|
}
|
|
|
|
static void ppc405cr_clk_init (ppc405cr_cpc_t *cpc)
|
|
{
|
|
int D;
|
|
|
|
/* XXX: this should be read from IO pins */
|
|
cpc->psr = 0x00000000; /* 8 bits ROM */
|
|
/* PFWD */
|
|
D = 0x2; /* Divide by 4 */
|
|
cpc->psr |= D << 30;
|
|
/* PFBD */
|
|
D = 0x1; /* Divide by 2 */
|
|
cpc->psr |= D << 28;
|
|
/* PDC */
|
|
D = 0x1; /* Divide by 2 */
|
|
cpc->psr |= D << 23;
|
|
/* PT */
|
|
D = 0x5; /* M = 16 */
|
|
cpc->psr |= D << 25;
|
|
/* ODP */
|
|
D = 0x1; /* Divide by 2 */
|
|
cpc->psr |= D << 21;
|
|
/* EBDP */
|
|
D = 0x2; /* Divide by 4 */
|
|
cpc->psr |= D << 17;
|
|
}
|
|
|
|
static void ppc405cr_cpc_init (CPUState *env, clk_setup_t clk_setup[7],
|
|
uint32_t sysclk)
|
|
{
|
|
ppc405cr_cpc_t *cpc;
|
|
|
|
cpc = qemu_mallocz(sizeof(ppc405cr_cpc_t));
|
|
if (cpc != NULL) {
|
|
memcpy(cpc->clk_setup, clk_setup,
|
|
PPC405CR_CLK_NB * sizeof(clk_setup_t));
|
|
cpc->sysclk = sysclk;
|
|
cpc->jtagid = 0x42051049;
|
|
ppc_dcr_register(env, PPC405CR_CPC0_PSR, cpc,
|
|
&dcr_read_crcpc, &dcr_write_crcpc);
|
|
ppc_dcr_register(env, PPC405CR_CPC0_CR0, cpc,
|
|
&dcr_read_crcpc, &dcr_write_crcpc);
|
|
ppc_dcr_register(env, PPC405CR_CPC0_CR1, cpc,
|
|
&dcr_read_crcpc, &dcr_write_crcpc);
|
|
ppc_dcr_register(env, PPC405CR_CPC0_JTAGID, cpc,
|
|
&dcr_read_crcpc, &dcr_write_crcpc);
|
|
ppc_dcr_register(env, PPC405CR_CPC0_PLLMR, cpc,
|
|
&dcr_read_crcpc, &dcr_write_crcpc);
|
|
ppc_dcr_register(env, PPC405CR_CPC0_ER, cpc,
|
|
&dcr_read_crcpc, &dcr_write_crcpc);
|
|
ppc_dcr_register(env, PPC405CR_CPC0_FR, cpc,
|
|
&dcr_read_crcpc, &dcr_write_crcpc);
|
|
ppc_dcr_register(env, PPC405CR_CPC0_SR, cpc,
|
|
&dcr_read_crcpc, &dcr_write_crcpc);
|
|
ppc405cr_clk_init(cpc);
|
|
qemu_register_reset(ppc405cr_cpc_reset, cpc);
|
|
ppc405cr_cpc_reset(cpc);
|
|
}
|
|
}
|
|
|
|
CPUState *ppc405cr_init (target_phys_addr_t ram_bases[4],
|
|
target_phys_addr_t ram_sizes[4],
|
|
uint32_t sysclk, qemu_irq **picp,
|
|
ram_addr_t *offsetp, int do_init)
|
|
{
|
|
clk_setup_t clk_setup[PPC405CR_CLK_NB];
|
|
qemu_irq dma_irqs[4];
|
|
CPUState *env;
|
|
ppc4xx_mmio_t *mmio;
|
|
qemu_irq *pic, *irqs;
|
|
ram_addr_t offset;
|
|
int i;
|
|
|
|
memset(clk_setup, 0, sizeof(clk_setup));
|
|
env = ppc4xx_init("405cr", &clk_setup[PPC405CR_CPU_CLK],
|
|
&clk_setup[PPC405CR_TMR_CLK], sysclk);
|
|
/* Memory mapped devices registers */
|
|
mmio = ppc4xx_mmio_init(env, 0xEF600000);
|
|
/* PLB arbitrer */
|
|
ppc4xx_plb_init(env);
|
|
/* PLB to OPB bridge */
|
|
ppc4xx_pob_init(env);
|
|
/* OBP arbitrer */
|
|
ppc4xx_opba_init(env, mmio, 0x600);
|
|
/* Universal interrupt controller */
|
|
irqs = qemu_mallocz(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
|
|
irqs[PPCUIC_OUTPUT_INT] =
|
|
((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT];
|
|
irqs[PPCUIC_OUTPUT_CINT] =
|
|
((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
|
|
pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
|
|
*picp = pic;
|
|
/* SDRAM controller */
|
|
ppc405_sdram_init(env, pic[14], 1, ram_bases, ram_sizes, do_init);
|
|
offset = 0;
|
|
for (i = 0; i < 4; i++)
|
|
offset += ram_sizes[i];
|
|
/* External bus controller */
|
|
ppc405_ebc_init(env);
|
|
/* DMA controller */
|
|
dma_irqs[0] = pic[26];
|
|
dma_irqs[1] = pic[25];
|
|
dma_irqs[2] = pic[24];
|
|
dma_irqs[3] = pic[23];
|
|
ppc405_dma_init(env, dma_irqs);
|
|
/* Serial ports */
|
|
if (serial_hds[0] != NULL) {
|
|
ppc405_serial_init(env, mmio, 0x300, pic[31], serial_hds[0]);
|
|
}
|
|
if (serial_hds[1] != NULL) {
|
|
ppc405_serial_init(env, mmio, 0x400, pic[30], serial_hds[1]);
|
|
}
|
|
/* IIC controller */
|
|
ppc405_i2c_init(env, mmio, 0x500, pic[29]);
|
|
/* GPIO */
|
|
ppc405_gpio_init(env, mmio, 0x700);
|
|
/* CPU control */
|
|
ppc405cr_cpc_init(env, clk_setup, sysclk);
|
|
*offsetp = offset;
|
|
|
|
return env;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* PowerPC 405EP */
|
|
/* CPU control */
|
|
enum {
|
|
PPC405EP_CPC0_PLLMR0 = 0x0F0,
|
|
PPC405EP_CPC0_BOOT = 0x0F1,
|
|
PPC405EP_CPC0_EPCTL = 0x0F3,
|
|
PPC405EP_CPC0_PLLMR1 = 0x0F4,
|
|
PPC405EP_CPC0_UCR = 0x0F5,
|
|
PPC405EP_CPC0_SRR = 0x0F6,
|
|
PPC405EP_CPC0_JTAGID = 0x0F7,
|
|
PPC405EP_CPC0_PCI = 0x0F9,
|
|
#if 0
|
|
PPC405EP_CPC0_ER = xxx,
|
|
PPC405EP_CPC0_FR = xxx,
|
|
PPC405EP_CPC0_SR = xxx,
|
|
#endif
|
|
};
|
|
|
|
enum {
|
|
PPC405EP_CPU_CLK = 0,
|
|
PPC405EP_PLB_CLK = 1,
|
|
PPC405EP_OPB_CLK = 2,
|
|
PPC405EP_EBC_CLK = 3,
|
|
PPC405EP_MAL_CLK = 4,
|
|
PPC405EP_PCI_CLK = 5,
|
|
PPC405EP_UART0_CLK = 6,
|
|
PPC405EP_UART1_CLK = 7,
|
|
PPC405EP_CLK_NB = 8,
|
|
};
|
|
|
|
typedef struct ppc405ep_cpc_t ppc405ep_cpc_t;
|
|
struct ppc405ep_cpc_t {
|
|
uint32_t sysclk;
|
|
clk_setup_t clk_setup[PPC405EP_CLK_NB];
|
|
uint32_t boot;
|
|
uint32_t epctl;
|
|
uint32_t pllmr[2];
|
|
uint32_t ucr;
|
|
uint32_t srr;
|
|
uint32_t jtagid;
|
|
uint32_t pci;
|
|
/* Clock and power management */
|
|
uint32_t er;
|
|
uint32_t fr;
|
|
uint32_t sr;
|
|
};
|
|
|
|
static void ppc405ep_compute_clocks (ppc405ep_cpc_t *cpc)
|
|
{
|
|
uint32_t CPU_clk, PLB_clk, OPB_clk, EBC_clk, MAL_clk, PCI_clk;
|
|
uint32_t UART0_clk, UART1_clk;
|
|
uint64_t VCO_out, PLL_out;
|
|
int M, D;
|
|
|
|
VCO_out = 0;
|
|
if ((cpc->pllmr[1] & 0x80000000) && !(cpc->pllmr[1] & 0x40000000)) {
|
|
M = (((cpc->pllmr[1] >> 20) - 1) & 0xF) + 1; /* FBMUL */
|
|
// printf("FBMUL %01x %d\n", (cpc->pllmr[1] >> 20) & 0xF, M);
|
|
D = 8 - ((cpc->pllmr[1] >> 16) & 0x7); /* FWDA */
|
|
// printf("FWDA %01x %d\n", (cpc->pllmr[1] >> 16) & 0x7, D);
|
|
VCO_out = cpc->sysclk * M * D;
|
|
if (VCO_out < 500000000UL || VCO_out > 1000000000UL) {
|
|
/* Error - unlock the PLL */
|
|
printf("VCO out of range %" PRIu64 "\n", VCO_out);
|
|
#if 0
|
|
cpc->pllmr[1] &= ~0x80000000;
|
|
goto pll_bypass;
|
|
#endif
|
|
}
|
|
PLL_out = VCO_out / D;
|
|
/* Pretend the PLL is locked */
|
|
cpc->boot |= 0x00000001;
|
|
} else {
|
|
#if 0
|
|
pll_bypass:
|
|
#endif
|
|
PLL_out = cpc->sysclk;
|
|
if (cpc->pllmr[1] & 0x40000000) {
|
|
/* Pretend the PLL is not locked */
|
|
cpc->boot &= ~0x00000001;
|
|
}
|
|
}
|
|
/* Now, compute all other clocks */
|
|
D = ((cpc->pllmr[0] >> 20) & 0x3) + 1; /* CCDV */
|
|
#ifdef DEBUG_CLOCKS
|
|
// printf("CCDV %01x %d\n", (cpc->pllmr[0] >> 20) & 0x3, D);
|
|
#endif
|
|
CPU_clk = PLL_out / D;
|
|
D = ((cpc->pllmr[0] >> 16) & 0x3) + 1; /* CBDV */
|
|
#ifdef DEBUG_CLOCKS
|
|
// printf("CBDV %01x %d\n", (cpc->pllmr[0] >> 16) & 0x3, D);
|
|
#endif
|
|
PLB_clk = CPU_clk / D;
|
|
D = ((cpc->pllmr[0] >> 12) & 0x3) + 1; /* OPDV */
|
|
#ifdef DEBUG_CLOCKS
|
|
// printf("OPDV %01x %d\n", (cpc->pllmr[0] >> 12) & 0x3, D);
|
|
#endif
|
|
OPB_clk = PLB_clk / D;
|
|
D = ((cpc->pllmr[0] >> 8) & 0x3) + 2; /* EPDV */
|
|
#ifdef DEBUG_CLOCKS
|
|
// printf("EPDV %01x %d\n", (cpc->pllmr[0] >> 8) & 0x3, D);
|
|
#endif
|
|
EBC_clk = PLB_clk / D;
|
|
D = ((cpc->pllmr[0] >> 4) & 0x3) + 1; /* MPDV */
|
|
#ifdef DEBUG_CLOCKS
|
|
// printf("MPDV %01x %d\n", (cpc->pllmr[0] >> 4) & 0x3, D);
|
|
#endif
|
|
MAL_clk = PLB_clk / D;
|
|
D = (cpc->pllmr[0] & 0x3) + 1; /* PPDV */
|
|
#ifdef DEBUG_CLOCKS
|
|
// printf("PPDV %01x %d\n", cpc->pllmr[0] & 0x3, D);
|
|
#endif
|
|
PCI_clk = PLB_clk / D;
|
|
D = ((cpc->ucr - 1) & 0x7F) + 1; /* U0DIV */
|
|
#ifdef DEBUG_CLOCKS
|
|
// printf("U0DIV %01x %d\n", cpc->ucr & 0x7F, D);
|
|
#endif
|
|
UART0_clk = PLL_out / D;
|
|
D = (((cpc->ucr >> 8) - 1) & 0x7F) + 1; /* U1DIV */
|
|
#ifdef DEBUG_CLOCKS
|
|
// printf("U1DIV %01x %d\n", (cpc->ucr >> 8) & 0x7F, D);
|
|
#endif
|
|
UART1_clk = PLL_out / D;
|
|
#ifdef DEBUG_CLOCKS
|
|
printf("Setup PPC405EP clocks - sysclk %d VCO %" PRIu64
|
|
" PLL out %" PRIu64 " Hz\n", cpc->sysclk, VCO_out, PLL_out);
|
|
printf("CPU %d PLB %d OPB %d EBC %d MAL %d PCI %d UART0 %d UART1 %d\n",
|
|
CPU_clk, PLB_clk, OPB_clk, EBC_clk, MAL_clk, PCI_clk,
|
|
UART0_clk, UART1_clk);
|
|
printf("CB %p opaque %p\n", cpc->clk_setup[PPC405EP_CPU_CLK].cb,
|
|
cpc->clk_setup[PPC405EP_CPU_CLK].opaque);
|
|
#endif
|
|
/* Setup CPU clocks */
|
|
clk_setup(&cpc->clk_setup[PPC405EP_CPU_CLK], CPU_clk);
|
|
/* Setup PLB clock */
|
|
clk_setup(&cpc->clk_setup[PPC405EP_PLB_CLK], PLB_clk);
|
|
/* Setup OPB clock */
|
|
clk_setup(&cpc->clk_setup[PPC405EP_OPB_CLK], OPB_clk);
|
|
/* Setup external clock */
|
|
clk_setup(&cpc->clk_setup[PPC405EP_EBC_CLK], EBC_clk);
|
|
/* Setup MAL clock */
|
|
clk_setup(&cpc->clk_setup[PPC405EP_MAL_CLK], MAL_clk);
|
|
/* Setup PCI clock */
|
|
clk_setup(&cpc->clk_setup[PPC405EP_PCI_CLK], PCI_clk);
|
|
/* Setup UART0 clock */
|
|
clk_setup(&cpc->clk_setup[PPC405EP_UART0_CLK], UART0_clk);
|
|
/* Setup UART1 clock */
|
|
clk_setup(&cpc->clk_setup[PPC405EP_UART1_CLK], UART1_clk);
|
|
}
|
|
|
|
static target_ulong dcr_read_epcpc (void *opaque, int dcrn)
|
|
{
|
|
ppc405ep_cpc_t *cpc;
|
|
target_ulong ret;
|
|
|
|
cpc = opaque;
|
|
switch (dcrn) {
|
|
case PPC405EP_CPC0_BOOT:
|
|
ret = cpc->boot;
|
|
break;
|
|
case PPC405EP_CPC0_EPCTL:
|
|
ret = cpc->epctl;
|
|
break;
|
|
case PPC405EP_CPC0_PLLMR0:
|
|
ret = cpc->pllmr[0];
|
|
break;
|
|
case PPC405EP_CPC0_PLLMR1:
|
|
ret = cpc->pllmr[1];
|
|
break;
|
|
case PPC405EP_CPC0_UCR:
|
|
ret = cpc->ucr;
|
|
break;
|
|
case PPC405EP_CPC0_SRR:
|
|
ret = cpc->srr;
|
|
break;
|
|
case PPC405EP_CPC0_JTAGID:
|
|
ret = cpc->jtagid;
|
|
break;
|
|
case PPC405EP_CPC0_PCI:
|
|
ret = cpc->pci;
|
|
break;
|
|
default:
|
|
/* Avoid gcc warning */
|
|
ret = 0;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void dcr_write_epcpc (void *opaque, int dcrn, target_ulong val)
|
|
{
|
|
ppc405ep_cpc_t *cpc;
|
|
|
|
cpc = opaque;
|
|
switch (dcrn) {
|
|
case PPC405EP_CPC0_BOOT:
|
|
/* Read-only register */
|
|
break;
|
|
case PPC405EP_CPC0_EPCTL:
|
|
/* Don't care for now */
|
|
cpc->epctl = val & 0xC00000F3;
|
|
break;
|
|
case PPC405EP_CPC0_PLLMR0:
|
|
cpc->pllmr[0] = val & 0x00633333;
|
|
ppc405ep_compute_clocks(cpc);
|
|
break;
|
|
case PPC405EP_CPC0_PLLMR1:
|
|
cpc->pllmr[1] = val & 0xC0F73FFF;
|
|
ppc405ep_compute_clocks(cpc);
|
|
break;
|
|
case PPC405EP_CPC0_UCR:
|
|
/* UART control - don't care for now */
|
|
cpc->ucr = val & 0x003F7F7F;
|
|
break;
|
|
case PPC405EP_CPC0_SRR:
|
|
cpc->srr = val;
|
|
break;
|
|
case PPC405EP_CPC0_JTAGID:
|
|
/* Read-only */
|
|
break;
|
|
case PPC405EP_CPC0_PCI:
|
|
cpc->pci = val;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void ppc405ep_cpc_reset (void *opaque)
|
|
{
|
|
ppc405ep_cpc_t *cpc = opaque;
|
|
|
|
cpc->boot = 0x00000010; /* Boot from PCI - IIC EEPROM disabled */
|
|
cpc->epctl = 0x00000000;
|
|
cpc->pllmr[0] = 0x00011010;
|
|
cpc->pllmr[1] = 0x40000000;
|
|
cpc->ucr = 0x00000000;
|
|
cpc->srr = 0x00040000;
|
|
cpc->pci = 0x00000000;
|
|
cpc->er = 0x00000000;
|
|
cpc->fr = 0x00000000;
|
|
cpc->sr = 0x00000000;
|
|
ppc405ep_compute_clocks(cpc);
|
|
}
|
|
|
|
/* XXX: sysclk should be between 25 and 100 MHz */
|
|
static void ppc405ep_cpc_init (CPUState *env, clk_setup_t clk_setup[8],
|
|
uint32_t sysclk)
|
|
{
|
|
ppc405ep_cpc_t *cpc;
|
|
|
|
cpc = qemu_mallocz(sizeof(ppc405ep_cpc_t));
|
|
if (cpc != NULL) {
|
|
memcpy(cpc->clk_setup, clk_setup,
|
|
PPC405EP_CLK_NB * sizeof(clk_setup_t));
|
|
cpc->jtagid = 0x20267049;
|
|
cpc->sysclk = sysclk;
|
|
ppc405ep_cpc_reset(cpc);
|
|
qemu_register_reset(&ppc405ep_cpc_reset, cpc);
|
|
ppc_dcr_register(env, PPC405EP_CPC0_BOOT, cpc,
|
|
&dcr_read_epcpc, &dcr_write_epcpc);
|
|
ppc_dcr_register(env, PPC405EP_CPC0_EPCTL, cpc,
|
|
&dcr_read_epcpc, &dcr_write_epcpc);
|
|
ppc_dcr_register(env, PPC405EP_CPC0_PLLMR0, cpc,
|
|
&dcr_read_epcpc, &dcr_write_epcpc);
|
|
ppc_dcr_register(env, PPC405EP_CPC0_PLLMR1, cpc,
|
|
&dcr_read_epcpc, &dcr_write_epcpc);
|
|
ppc_dcr_register(env, PPC405EP_CPC0_UCR, cpc,
|
|
&dcr_read_epcpc, &dcr_write_epcpc);
|
|
ppc_dcr_register(env, PPC405EP_CPC0_SRR, cpc,
|
|
&dcr_read_epcpc, &dcr_write_epcpc);
|
|
ppc_dcr_register(env, PPC405EP_CPC0_JTAGID, cpc,
|
|
&dcr_read_epcpc, &dcr_write_epcpc);
|
|
ppc_dcr_register(env, PPC405EP_CPC0_PCI, cpc,
|
|
&dcr_read_epcpc, &dcr_write_epcpc);
|
|
#if 0
|
|
ppc_dcr_register(env, PPC405EP_CPC0_ER, cpc,
|
|
&dcr_read_epcpc, &dcr_write_epcpc);
|
|
ppc_dcr_register(env, PPC405EP_CPC0_FR, cpc,
|
|
&dcr_read_epcpc, &dcr_write_epcpc);
|
|
ppc_dcr_register(env, PPC405EP_CPC0_SR, cpc,
|
|
&dcr_read_epcpc, &dcr_write_epcpc);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
CPUState *ppc405ep_init (target_phys_addr_t ram_bases[2],
|
|
target_phys_addr_t ram_sizes[2],
|
|
uint32_t sysclk, qemu_irq **picp,
|
|
ram_addr_t *offsetp, int do_init)
|
|
{
|
|
clk_setup_t clk_setup[PPC405EP_CLK_NB], tlb_clk_setup;
|
|
qemu_irq dma_irqs[4], gpt_irqs[5], mal_irqs[4];
|
|
CPUState *env;
|
|
ppc4xx_mmio_t *mmio;
|
|
qemu_irq *pic, *irqs;
|
|
ram_addr_t offset;
|
|
int i;
|
|
|
|
memset(clk_setup, 0, sizeof(clk_setup));
|
|
/* init CPUs */
|
|
env = ppc4xx_init("405ep", &clk_setup[PPC405EP_CPU_CLK],
|
|
&tlb_clk_setup, sysclk);
|
|
clk_setup[PPC405EP_CPU_CLK].cb = tlb_clk_setup.cb;
|
|
clk_setup[PPC405EP_CPU_CLK].opaque = tlb_clk_setup.opaque;
|
|
/* Internal devices init */
|
|
/* Memory mapped devices registers */
|
|
mmio = ppc4xx_mmio_init(env, 0xEF600000);
|
|
/* PLB arbitrer */
|
|
ppc4xx_plb_init(env);
|
|
/* PLB to OPB bridge */
|
|
ppc4xx_pob_init(env);
|
|
/* OBP arbitrer */
|
|
ppc4xx_opba_init(env, mmio, 0x600);
|
|
/* Universal interrupt controller */
|
|
irqs = qemu_mallocz(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
|
|
irqs[PPCUIC_OUTPUT_INT] =
|
|
((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT];
|
|
irqs[PPCUIC_OUTPUT_CINT] =
|
|
((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
|
|
pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
|
|
*picp = pic;
|
|
/* SDRAM controller */
|
|
ppc405_sdram_init(env, pic[14], 2, ram_bases, ram_sizes, do_init);
|
|
offset = 0;
|
|
for (i = 0; i < 2; i++)
|
|
offset += ram_sizes[i];
|
|
/* External bus controller */
|
|
ppc405_ebc_init(env);
|
|
/* DMA controller */
|
|
dma_irqs[0] = pic[26];
|
|
dma_irqs[1] = pic[25];
|
|
dma_irqs[2] = pic[24];
|
|
dma_irqs[3] = pic[23];
|
|
ppc405_dma_init(env, dma_irqs);
|
|
/* IIC controller */
|
|
ppc405_i2c_init(env, mmio, 0x500, pic[29]);
|
|
/* GPIO */
|
|
ppc405_gpio_init(env, mmio, 0x700);
|
|
/* Serial ports */
|
|
if (serial_hds[0] != NULL) {
|
|
ppc405_serial_init(env, mmio, 0x300, pic[31], serial_hds[0]);
|
|
}
|
|
if (serial_hds[1] != NULL) {
|
|
ppc405_serial_init(env, mmio, 0x400, pic[30], serial_hds[1]);
|
|
}
|
|
/* OCM */
|
|
ppc405_ocm_init(env, ram_sizes[0] + ram_sizes[1]);
|
|
offset += 4096;
|
|
/* GPT */
|
|
gpt_irqs[0] = pic[12];
|
|
gpt_irqs[1] = pic[11];
|
|
gpt_irqs[2] = pic[10];
|
|
gpt_irqs[3] = pic[9];
|
|
gpt_irqs[4] = pic[8];
|
|
ppc4xx_gpt_init(env, mmio, 0x000, gpt_irqs);
|
|
/* PCI */
|
|
/* Uses pic[28], pic[15], pic[13] */
|
|
/* MAL */
|
|
mal_irqs[0] = pic[20];
|
|
mal_irqs[1] = pic[19];
|
|
mal_irqs[2] = pic[18];
|
|
mal_irqs[3] = pic[17];
|
|
ppc405_mal_init(env, mal_irqs);
|
|
/* Ethernet */
|
|
/* Uses pic[22], pic[16], pic[14] */
|
|
/* CPU control */
|
|
ppc405ep_cpc_init(env, clk_setup, sysclk);
|
|
*offsetp = offset;
|
|
|
|
return env;
|
|
}
|