These devices are found in newer SoCs based on 440 core e.g. the 460EX (http://www.embeddeddeveloper.com/assets/processors/amcc/datasheets/ PP460EX_DS2063.pdf) Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
1160 lines
32 KiB
C
1160 lines
32 KiB
C
/*
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* QEMU PowerPC 440 embedded processors emulation
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*
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* Copyright (c) 2012 François Revol
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* Copyright (c) 2016-2018 BALATON Zoltan
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*
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* This work is licensed under the GNU GPL license version 2 or later.
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*
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*/
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "qemu/cutils.h"
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#include "qemu/error-report.h"
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#include "qapi/error.h"
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#include "cpu.h"
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#include "hw/hw.h"
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#include "exec/address-spaces.h"
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#include "exec/memory.h"
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#include "hw/ppc/ppc.h"
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#include "hw/pci/pci.h"
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#include "sysemu/block-backend.h"
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#include "hw/ppc/ppc440.h"
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/*****************************************************************************/
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/* L2 Cache as SRAM */
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/* FIXME:fix names */
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enum {
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DCR_L2CACHE_BASE = 0x30,
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DCR_L2CACHE_CFG = DCR_L2CACHE_BASE,
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DCR_L2CACHE_CMD,
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DCR_L2CACHE_ADDR,
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DCR_L2CACHE_DATA,
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DCR_L2CACHE_STAT,
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DCR_L2CACHE_CVER,
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DCR_L2CACHE_SNP0,
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DCR_L2CACHE_SNP1,
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DCR_L2CACHE_END = DCR_L2CACHE_SNP1,
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};
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/* base is 460ex-specific, cf. U-Boot, ppc4xx-isram.h */
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enum {
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DCR_ISRAM0_BASE = 0x20,
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DCR_ISRAM0_SB0CR = DCR_ISRAM0_BASE,
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DCR_ISRAM0_SB1CR,
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DCR_ISRAM0_SB2CR,
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DCR_ISRAM0_SB3CR,
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DCR_ISRAM0_BEAR,
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DCR_ISRAM0_BESR0,
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DCR_ISRAM0_BESR1,
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DCR_ISRAM0_PMEG,
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DCR_ISRAM0_CID,
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DCR_ISRAM0_REVID,
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DCR_ISRAM0_DPC,
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DCR_ISRAM0_END = DCR_ISRAM0_DPC
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};
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enum {
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DCR_ISRAM1_BASE = 0xb0,
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DCR_ISRAM1_SB0CR = DCR_ISRAM1_BASE,
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/* single bank */
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DCR_ISRAM1_BEAR = DCR_ISRAM1_BASE + 0x04,
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DCR_ISRAM1_BESR0,
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DCR_ISRAM1_BESR1,
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DCR_ISRAM1_PMEG,
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DCR_ISRAM1_CID,
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DCR_ISRAM1_REVID,
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DCR_ISRAM1_DPC,
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DCR_ISRAM1_END = DCR_ISRAM1_DPC
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};
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typedef struct ppc4xx_l2sram_t {
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MemoryRegion bank[4];
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uint32_t l2cache[8];
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uint32_t isram0[11];
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} ppc4xx_l2sram_t;
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#ifdef MAP_L2SRAM
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static void l2sram_update_mappings(ppc4xx_l2sram_t *l2sram,
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uint32_t isarc, uint32_t isacntl,
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uint32_t dsarc, uint32_t dsacntl)
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{
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if (l2sram->isarc != isarc ||
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(l2sram->isacntl & 0x80000000) != (isacntl & 0x80000000)) {
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if (l2sram->isacntl & 0x80000000) {
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/* Unmap previously assigned memory region */
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memory_region_del_subregion(get_system_memory(),
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&l2sram->isarc_ram);
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}
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if (isacntl & 0x80000000) {
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/* Map new instruction memory region */
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memory_region_add_subregion(get_system_memory(), isarc,
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&l2sram->isarc_ram);
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}
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}
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if (l2sram->dsarc != dsarc ||
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(l2sram->dsacntl & 0x80000000) != (dsacntl & 0x80000000)) {
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if (l2sram->dsacntl & 0x80000000) {
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/* Beware not to unmap the region we just mapped */
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if (!(isacntl & 0x80000000) || l2sram->dsarc != isarc) {
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/* Unmap previously assigned memory region */
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memory_region_del_subregion(get_system_memory(),
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&l2sram->dsarc_ram);
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}
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}
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if (dsacntl & 0x80000000) {
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/* Beware not to remap the region we just mapped */
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if (!(isacntl & 0x80000000) || dsarc != isarc) {
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/* Map new data memory region */
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memory_region_add_subregion(get_system_memory(), dsarc,
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&l2sram->dsarc_ram);
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}
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}
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}
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}
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#endif
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static uint32_t dcr_read_l2sram(void *opaque, int dcrn)
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{
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ppc4xx_l2sram_t *l2sram = opaque;
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uint32_t ret = 0;
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switch (dcrn) {
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case DCR_L2CACHE_CFG:
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case DCR_L2CACHE_CMD:
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case DCR_L2CACHE_ADDR:
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case DCR_L2CACHE_DATA:
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case DCR_L2CACHE_STAT:
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case DCR_L2CACHE_CVER:
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case DCR_L2CACHE_SNP0:
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case DCR_L2CACHE_SNP1:
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ret = l2sram->l2cache[dcrn - DCR_L2CACHE_BASE];
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break;
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case DCR_ISRAM0_SB0CR:
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case DCR_ISRAM0_SB1CR:
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case DCR_ISRAM0_SB2CR:
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case DCR_ISRAM0_SB3CR:
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case DCR_ISRAM0_BEAR:
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case DCR_ISRAM0_BESR0:
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case DCR_ISRAM0_BESR1:
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case DCR_ISRAM0_PMEG:
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case DCR_ISRAM0_CID:
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case DCR_ISRAM0_REVID:
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case DCR_ISRAM0_DPC:
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ret = l2sram->isram0[dcrn - DCR_ISRAM0_BASE];
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break;
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default:
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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_l2sram(void *opaque, int dcrn, uint32_t val)
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{
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/*ppc4xx_l2sram_t *l2sram = opaque;*/
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/* FIXME: Actually handle L2 cache mapping */
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switch (dcrn) {
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case DCR_L2CACHE_CFG:
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case DCR_L2CACHE_CMD:
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case DCR_L2CACHE_ADDR:
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case DCR_L2CACHE_DATA:
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case DCR_L2CACHE_STAT:
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case DCR_L2CACHE_CVER:
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case DCR_L2CACHE_SNP0:
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case DCR_L2CACHE_SNP1:
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/*l2sram->l2cache[dcrn - DCR_L2CACHE_BASE] = val;*/
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break;
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case DCR_ISRAM0_SB0CR:
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case DCR_ISRAM0_SB1CR:
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case DCR_ISRAM0_SB2CR:
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case DCR_ISRAM0_SB3CR:
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case DCR_ISRAM0_BEAR:
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case DCR_ISRAM0_BESR0:
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case DCR_ISRAM0_BESR1:
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case DCR_ISRAM0_PMEG:
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case DCR_ISRAM0_CID:
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case DCR_ISRAM0_REVID:
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case DCR_ISRAM0_DPC:
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/*l2sram->isram0[dcrn - DCR_L2CACHE_BASE] = val;*/
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break;
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case DCR_ISRAM1_SB0CR:
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case DCR_ISRAM1_BEAR:
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case DCR_ISRAM1_BESR0:
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case DCR_ISRAM1_BESR1:
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case DCR_ISRAM1_PMEG:
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case DCR_ISRAM1_CID:
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case DCR_ISRAM1_REVID:
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case DCR_ISRAM1_DPC:
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/*l2sram->isram1[dcrn - DCR_L2CACHE_BASE] = val;*/
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break;
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}
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/*l2sram_update_mappings(l2sram, isarc, isacntl, dsarc, dsacntl);*/
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}
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static void l2sram_reset(void *opaque)
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{
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ppc4xx_l2sram_t *l2sram = opaque;
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memset(l2sram->l2cache, 0, sizeof(l2sram->l2cache));
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l2sram->l2cache[DCR_L2CACHE_STAT - DCR_L2CACHE_BASE] = 0x80000000;
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memset(l2sram->isram0, 0, sizeof(l2sram->isram0));
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/*l2sram_update_mappings(l2sram, isarc, isacntl, dsarc, dsacntl);*/
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}
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void ppc4xx_l2sram_init(CPUPPCState *env)
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{
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ppc4xx_l2sram_t *l2sram;
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l2sram = g_malloc0(sizeof(*l2sram));
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/* XXX: Size is 4*64kB for 460ex, cf. U-Boot, ppc4xx-isram.h */
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memory_region_init_ram(&l2sram->bank[0], NULL, "ppc4xx.l2sram_bank0",
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64 * K_BYTE, &error_abort);
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memory_region_init_ram(&l2sram->bank[1], NULL, "ppc4xx.l2sram_bank1",
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64 * K_BYTE, &error_abort);
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memory_region_init_ram(&l2sram->bank[2], NULL, "ppc4xx.l2sram_bank2",
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64 * K_BYTE, &error_abort);
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memory_region_init_ram(&l2sram->bank[3], NULL, "ppc4xx.l2sram_bank3",
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64 * K_BYTE, &error_abort);
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qemu_register_reset(&l2sram_reset, l2sram);
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ppc_dcr_register(env, DCR_L2CACHE_CFG,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_L2CACHE_CMD,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_L2CACHE_ADDR,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_L2CACHE_DATA,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_L2CACHE_STAT,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_L2CACHE_CVER,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_L2CACHE_SNP0,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_L2CACHE_SNP1,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_ISRAM0_SB0CR,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_ISRAM0_SB1CR,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_ISRAM0_SB2CR,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_ISRAM0_SB3CR,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_ISRAM0_PMEG,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_ISRAM0_DPC,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_ISRAM1_SB0CR,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_ISRAM1_PMEG,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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ppc_dcr_register(env, DCR_ISRAM1_DPC,
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l2sram, &dcr_read_l2sram, &dcr_write_l2sram);
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}
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/*****************************************************************************/
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/* Clocking Power on Reset */
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enum {
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CPR0_CFGADDR = 0xC,
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CPR0_CFGDATA = 0xD,
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CPR0_PLLD = 0x060,
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CPR0_PLBED = 0x080,
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CPR0_OPBD = 0x0C0,
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CPR0_PERD = 0x0E0,
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CPR0_AHBD = 0x100,
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};
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typedef struct ppc4xx_cpr_t {
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uint32_t addr;
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} ppc4xx_cpr_t;
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static uint32_t dcr_read_cpr(void *opaque, int dcrn)
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{
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ppc4xx_cpr_t *cpr = opaque;
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uint32_t ret = 0;
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switch (dcrn) {
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case CPR0_CFGADDR:
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ret = cpr->addr;
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break;
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case CPR0_CFGDATA:
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switch (cpr->addr) {
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case CPR0_PLLD:
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ret = (0xb5 << 24) | (1 << 16) | (9 << 8);
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break;
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case CPR0_PLBED:
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ret = (5 << 24);
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break;
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case CPR0_OPBD:
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ret = (2 << 24);
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break;
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case CPR0_PERD:
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case CPR0_AHBD:
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ret = (1 << 24);
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break;
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default:
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break;
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}
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break;
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default:
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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_cpr(void *opaque, int dcrn, uint32_t val)
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{
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ppc4xx_cpr_t *cpr = opaque;
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switch (dcrn) {
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case CPR0_CFGADDR:
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cpr->addr = val;
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break;
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case CPR0_CFGDATA:
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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 void ppc4xx_cpr_reset(void *opaque)
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{
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ppc4xx_cpr_t *cpr = opaque;
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cpr->addr = 0;
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}
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void ppc4xx_cpr_init(CPUPPCState *env)
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{
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ppc4xx_cpr_t *cpr;
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cpr = g_malloc0(sizeof(*cpr));
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ppc_dcr_register(env, CPR0_CFGADDR, cpr, &dcr_read_cpr, &dcr_write_cpr);
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ppc_dcr_register(env, CPR0_CFGDATA, cpr, &dcr_read_cpr, &dcr_write_cpr);
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qemu_register_reset(ppc4xx_cpr_reset, cpr);
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}
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/*****************************************************************************/
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/* System DCRs */
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typedef struct ppc4xx_sdr_t ppc4xx_sdr_t;
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struct ppc4xx_sdr_t {
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uint32_t addr;
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};
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enum {
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SDR0_CFGADDR = 0x00e,
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SDR0_CFGDATA,
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SDR0_STRP0 = 0x020,
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SDR0_STRP1,
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SDR0_102 = 0x66,
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SDR0_103,
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SDR0_128 = 0x80,
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SDR0_ECID3 = 0x083,
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SDR0_DDR0 = 0x0e1,
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SDR0_USB0 = 0x320,
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};
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enum {
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PESDR0_LOOP = 0x303,
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PESDR0_RCSSET,
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PESDR0_RCSSTS,
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PESDR0_RSTSTA = 0x310,
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PESDR1_LOOP = 0x343,
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PESDR1_RCSSET,
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PESDR1_RCSSTS,
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PESDR1_RSTSTA = 0x365,
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};
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#define SDR0_DDR0_DDRM_ENCODE(n) ((((unsigned long)(n)) & 0x03) << 29)
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#define SDR0_DDR0_DDRM_DDR1 0x20000000
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#define SDR0_DDR0_DDRM_DDR2 0x40000000
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static uint32_t dcr_read_sdr(void *opaque, int dcrn)
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{
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ppc4xx_sdr_t *sdr = opaque;
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uint32_t ret = 0;
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switch (dcrn) {
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case SDR0_CFGADDR:
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ret = sdr->addr;
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break;
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case SDR0_CFGDATA:
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switch (sdr->addr) {
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case SDR0_STRP0:
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/* FIXME: Is this correct? This breaks timing in U-Boot */
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ret = 0; /*(0xb5 << 8) | (1 << 4) | 9 */
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break;
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case SDR0_STRP1:
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ret = (5 << 29) | (2 << 26) | (1 << 24);
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break;
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case SDR0_ECID3:
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ret = 1 << 20; /* No Security/Kasumi support */
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break;
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case SDR0_DDR0:
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ret = SDR0_DDR0_DDRM_ENCODE(1) | SDR0_DDR0_DDRM_DDR1;
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break;
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case PESDR0_RCSSET:
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case PESDR1_RCSSET:
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ret = (1 << 24) | (1 << 16);
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break;
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case PESDR0_RCSSTS:
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case PESDR1_RCSSTS:
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ret = (1 << 16) | (1 << 12);
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break;
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case PESDR0_RSTSTA:
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case PESDR1_RSTSTA:
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ret = 1;
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break;
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case PESDR0_LOOP:
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case PESDR1_LOOP:
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ret = 1 << 12;
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break;
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default:
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break;
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}
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break;
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default:
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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_sdr(void *opaque, int dcrn, uint32_t val)
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{
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ppc4xx_sdr_t *sdr = opaque;
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switch (dcrn) {
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case SDR0_CFGADDR:
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sdr->addr = val;
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break;
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case SDR0_CFGDATA:
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switch (sdr->addr) {
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case 0x00: /* B0CR */
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break;
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default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void sdr_reset(void *opaque)
|
|
{
|
|
ppc4xx_sdr_t *sdr = opaque;
|
|
|
|
sdr->addr = 0;
|
|
}
|
|
|
|
void ppc4xx_sdr_init(CPUPPCState *env)
|
|
{
|
|
ppc4xx_sdr_t *sdr;
|
|
|
|
sdr = g_malloc0(sizeof(*sdr));
|
|
qemu_register_reset(&sdr_reset, sdr);
|
|
ppc_dcr_register(env, SDR0_CFGADDR,
|
|
sdr, &dcr_read_sdr, &dcr_write_sdr);
|
|
ppc_dcr_register(env, SDR0_CFGDATA,
|
|
sdr, &dcr_read_sdr, &dcr_write_sdr);
|
|
ppc_dcr_register(env, SDR0_102,
|
|
sdr, &dcr_read_sdr, &dcr_write_sdr);
|
|
ppc_dcr_register(env, SDR0_103,
|
|
sdr, &dcr_read_sdr, &dcr_write_sdr);
|
|
ppc_dcr_register(env, SDR0_128,
|
|
sdr, &dcr_read_sdr, &dcr_write_sdr);
|
|
ppc_dcr_register(env, SDR0_USB0,
|
|
sdr, &dcr_read_sdr, &dcr_write_sdr);
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* SDRAM controller */
|
|
typedef struct ppc4xx_sdram_t {
|
|
uint32_t addr;
|
|
int nbanks;
|
|
MemoryRegion containers[4]; /* used for clipping */
|
|
MemoryRegion *ram_memories;
|
|
hwaddr ram_bases[4];
|
|
hwaddr ram_sizes[4];
|
|
uint32_t bcr[4];
|
|
} ppc4xx_sdram_t;
|
|
|
|
enum {
|
|
SDRAM0_CFGADDR = 0x10,
|
|
SDRAM0_CFGDATA,
|
|
SDRAM_R0BAS = 0x40,
|
|
SDRAM_R1BAS,
|
|
SDRAM_R2BAS,
|
|
SDRAM_R3BAS,
|
|
SDRAM_CONF1HB = 0x45,
|
|
SDRAM_PLBADDULL = 0x4a,
|
|
SDRAM_CONF1LL = 0x4b,
|
|
SDRAM_CONFPATHB = 0x4f,
|
|
SDRAM_PLBADDUHB = 0x50,
|
|
};
|
|
|
|
/* XXX: TOFIX: some patches have made this code become inconsistent:
|
|
* there are type inconsistencies, mixing hwaddr, target_ulong
|
|
* and uint32_t
|
|
*/
|
|
static uint32_t sdram_bcr(hwaddr ram_base, hwaddr ram_size)
|
|
{
|
|
uint32_t bcr;
|
|
|
|
switch (ram_size) {
|
|
case (8 * M_BYTE):
|
|
bcr = 0xffc0;
|
|
break;
|
|
case (16 * M_BYTE):
|
|
bcr = 0xff80;
|
|
break;
|
|
case (32 * M_BYTE):
|
|
bcr = 0xff00;
|
|
break;
|
|
case (64 * M_BYTE):
|
|
bcr = 0xfe00;
|
|
break;
|
|
case (128 * M_BYTE):
|
|
bcr = 0xfc00;
|
|
break;
|
|
case (256 * M_BYTE):
|
|
bcr = 0xf800;
|
|
break;
|
|
case (512 * M_BYTE):
|
|
bcr = 0xf000;
|
|
break;
|
|
case (1 * G_BYTE):
|
|
bcr = 0xe000;
|
|
break;
|
|
default:
|
|
error_report("invalid RAM size " TARGET_FMT_plx, ram_size);
|
|
return 0;
|
|
}
|
|
bcr |= ram_base & 0xFF800000;
|
|
bcr |= 1;
|
|
|
|
return bcr;
|
|
}
|
|
|
|
static inline hwaddr sdram_base(uint32_t bcr)
|
|
{
|
|
return bcr & 0xFF800000;
|
|
}
|
|
|
|
static target_ulong sdram_size(uint32_t bcr)
|
|
{
|
|
target_ulong size;
|
|
int sh;
|
|
|
|
sh = 1024 - ((bcr >> 6) & 0x3ff);
|
|
if (sh == 0) {
|
|
size = -1;
|
|
} else {
|
|
size = 8 * M_BYTE * sh;
|
|
}
|
|
|
|
return size;
|
|
}
|
|
|
|
static void sdram_set_bcr(ppc4xx_sdram_t *sdram,
|
|
uint32_t *bcrp, uint32_t bcr, int enabled)
|
|
{
|
|
unsigned n = bcrp - sdram->bcr;
|
|
|
|
if (*bcrp & 1) {
|
|
/* Unmap RAM */
|
|
memory_region_del_subregion(get_system_memory(),
|
|
&sdram->containers[n]);
|
|
memory_region_del_subregion(&sdram->containers[n],
|
|
&sdram->ram_memories[n]);
|
|
object_unparent(OBJECT(&sdram->containers[n]));
|
|
}
|
|
*bcrp = bcr & 0xFFDEE001;
|
|
if (enabled && (bcr & 1)) {
|
|
memory_region_init(&sdram->containers[n], NULL, "sdram-containers",
|
|
sdram_size(bcr));
|
|
memory_region_add_subregion(&sdram->containers[n], 0,
|
|
&sdram->ram_memories[n]);
|
|
memory_region_add_subregion(get_system_memory(),
|
|
sdram_base(bcr),
|
|
&sdram->containers[n]);
|
|
}
|
|
}
|
|
|
|
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,
|
|
&sdram->bcr[i],
|
|
sdram_bcr(sdram->ram_bases[i], sdram->ram_sizes[i]),
|
|
1);
|
|
} else {
|
|
sdram_set_bcr(sdram, &sdram->bcr[i], 0, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
static uint32_t dcr_read_sdram(void *opaque, int dcrn)
|
|
{
|
|
ppc4xx_sdram_t *sdram = opaque;
|
|
uint32_t ret = 0;
|
|
|
|
switch (dcrn) {
|
|
case SDRAM_R0BAS:
|
|
case SDRAM_R1BAS:
|
|
case SDRAM_R2BAS:
|
|
case SDRAM_R3BAS:
|
|
ret = sdram_bcr(sdram->ram_bases[dcrn - SDRAM_R0BAS],
|
|
sdram->ram_sizes[dcrn - SDRAM_R0BAS]);
|
|
break;
|
|
case SDRAM_CONF1HB:
|
|
case SDRAM_CONF1LL:
|
|
case SDRAM_CONFPATHB:
|
|
case SDRAM_PLBADDULL:
|
|
case SDRAM_PLBADDUHB:
|
|
break;
|
|
case SDRAM0_CFGADDR:
|
|
ret = sdram->addr;
|
|
break;
|
|
case SDRAM0_CFGDATA:
|
|
switch (sdram->addr) {
|
|
case 0x14: /* SDRAM_MCSTAT (405EX) */
|
|
case 0x1F:
|
|
ret = 0x80000000;
|
|
break;
|
|
case 0x21: /* SDRAM_MCOPT2 */
|
|
ret = 0x08000000;
|
|
break;
|
|
case 0x40: /* SDRAM_MB0CF */
|
|
ret = 0x00008001;
|
|
break;
|
|
case 0x7A: /* SDRAM_DLCR */
|
|
ret = 0x02000000;
|
|
break;
|
|
case 0xE1: /* SDR0_DDR0 */
|
|
ret = SDR0_DDR0_DDRM_ENCODE(1) | SDR0_DDR0_DDRM_DDR1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void dcr_write_sdram(void *opaque, int dcrn, uint32_t val)
|
|
{
|
|
ppc4xx_sdram_t *sdram = opaque;
|
|
|
|
switch (dcrn) {
|
|
case SDRAM_R0BAS:
|
|
case SDRAM_R1BAS:
|
|
case SDRAM_R2BAS:
|
|
case SDRAM_R3BAS:
|
|
case SDRAM_CONF1HB:
|
|
case SDRAM_CONF1LL:
|
|
case SDRAM_CONFPATHB:
|
|
case SDRAM_PLBADDULL:
|
|
case SDRAM_PLBADDUHB:
|
|
break;
|
|
case SDRAM0_CFGADDR:
|
|
sdram->addr = val;
|
|
break;
|
|
case SDRAM0_CFGDATA:
|
|
switch (sdram->addr) {
|
|
case 0x00: /* B0CR */
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void sdram_reset(void *opaque)
|
|
{
|
|
ppc4xx_sdram_t *sdram = opaque;
|
|
|
|
sdram->addr = 0;
|
|
}
|
|
|
|
void ppc440_sdram_init(CPUPPCState *env, int nbanks,
|
|
MemoryRegion *ram_memories,
|
|
hwaddr *ram_bases, hwaddr *ram_sizes,
|
|
int do_init)
|
|
{
|
|
ppc4xx_sdram_t *sdram;
|
|
|
|
sdram = g_malloc0(sizeof(*sdram));
|
|
sdram->nbanks = nbanks;
|
|
sdram->ram_memories = ram_memories;
|
|
memcpy(sdram->ram_bases, ram_bases, nbanks * sizeof(hwaddr));
|
|
memcpy(sdram->ram_sizes, ram_sizes, nbanks * sizeof(hwaddr));
|
|
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);
|
|
}
|
|
|
|
ppc_dcr_register(env, SDRAM_R0BAS,
|
|
sdram, &dcr_read_sdram, &dcr_write_sdram);
|
|
ppc_dcr_register(env, SDRAM_R1BAS,
|
|
sdram, &dcr_read_sdram, &dcr_write_sdram);
|
|
ppc_dcr_register(env, SDRAM_R2BAS,
|
|
sdram, &dcr_read_sdram, &dcr_write_sdram);
|
|
ppc_dcr_register(env, SDRAM_R3BAS,
|
|
sdram, &dcr_read_sdram, &dcr_write_sdram);
|
|
ppc_dcr_register(env, SDRAM_CONF1HB,
|
|
sdram, &dcr_read_sdram, &dcr_write_sdram);
|
|
ppc_dcr_register(env, SDRAM_PLBADDULL,
|
|
sdram, &dcr_read_sdram, &dcr_write_sdram);
|
|
ppc_dcr_register(env, SDRAM_CONF1LL,
|
|
sdram, &dcr_read_sdram, &dcr_write_sdram);
|
|
ppc_dcr_register(env, SDRAM_CONFPATHB,
|
|
sdram, &dcr_read_sdram, &dcr_write_sdram);
|
|
ppc_dcr_register(env, SDRAM_PLBADDUHB,
|
|
sdram, &dcr_read_sdram, &dcr_write_sdram);
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* PLB to AHB bridge */
|
|
enum {
|
|
AHB_TOP = 0xA4,
|
|
AHB_BOT = 0xA5,
|
|
};
|
|
|
|
typedef struct ppc4xx_ahb_t {
|
|
uint32_t top;
|
|
uint32_t bot;
|
|
} ppc4xx_ahb_t;
|
|
|
|
static uint32_t dcr_read_ahb(void *opaque, int dcrn)
|
|
{
|
|
ppc4xx_ahb_t *ahb = opaque;
|
|
uint32_t ret = 0;
|
|
|
|
switch (dcrn) {
|
|
case AHB_TOP:
|
|
ret = ahb->top;
|
|
break;
|
|
case AHB_BOT:
|
|
ret = ahb->bot;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void dcr_write_ahb(void *opaque, int dcrn, uint32_t val)
|
|
{
|
|
ppc4xx_ahb_t *ahb = opaque;
|
|
|
|
switch (dcrn) {
|
|
case AHB_TOP:
|
|
ahb->top = val;
|
|
break;
|
|
case AHB_BOT:
|
|
ahb->bot = val;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void ppc4xx_ahb_reset(void *opaque)
|
|
{
|
|
ppc4xx_ahb_t *ahb = opaque;
|
|
|
|
/* No error */
|
|
ahb->top = 0;
|
|
ahb->bot = 0;
|
|
}
|
|
|
|
void ppc4xx_ahb_init(CPUPPCState *env)
|
|
{
|
|
ppc4xx_ahb_t *ahb;
|
|
|
|
ahb = g_malloc0(sizeof(*ahb));
|
|
ppc_dcr_register(env, AHB_TOP, ahb, &dcr_read_ahb, &dcr_write_ahb);
|
|
ppc_dcr_register(env, AHB_BOT, ahb, &dcr_read_ahb, &dcr_write_ahb);
|
|
qemu_register_reset(ppc4xx_ahb_reset, ahb);
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* PCI Express controller */
|
|
/* FIXME: This is not complete and does not work, only implemented partially
|
|
* to allow firmware and guests to find an empty bus. Cards should use PCI.
|
|
*/
|
|
#include "hw/pci/pcie_host.h"
|
|
|
|
#define TYPE_PPC460EX_PCIE_HOST "ppc460ex-pcie-host"
|
|
#define PPC460EX_PCIE_HOST(obj) \
|
|
OBJECT_CHECK(PPC460EXPCIEState, (obj), TYPE_PPC460EX_PCIE_HOST)
|
|
|
|
typedef struct PPC460EXPCIEState {
|
|
PCIExpressHost host;
|
|
|
|
MemoryRegion iomem;
|
|
qemu_irq irq[4];
|
|
int32_t dcrn_base;
|
|
|
|
uint64_t cfg_base;
|
|
uint32_t cfg_mask;
|
|
uint64_t msg_base;
|
|
uint32_t msg_mask;
|
|
uint64_t omr1_base;
|
|
uint64_t omr1_mask;
|
|
uint64_t omr2_base;
|
|
uint64_t omr2_mask;
|
|
uint64_t omr3_base;
|
|
uint64_t omr3_mask;
|
|
uint64_t reg_base;
|
|
uint32_t reg_mask;
|
|
uint32_t special;
|
|
uint32_t cfg;
|
|
} PPC460EXPCIEState;
|
|
|
|
#define DCRN_PCIE0_BASE 0x100
|
|
#define DCRN_PCIE1_BASE 0x120
|
|
|
|
enum {
|
|
PEGPL_CFGBAH = 0x0,
|
|
PEGPL_CFGBAL,
|
|
PEGPL_CFGMSK,
|
|
PEGPL_MSGBAH,
|
|
PEGPL_MSGBAL,
|
|
PEGPL_MSGMSK,
|
|
PEGPL_OMR1BAH,
|
|
PEGPL_OMR1BAL,
|
|
PEGPL_OMR1MSKH,
|
|
PEGPL_OMR1MSKL,
|
|
PEGPL_OMR2BAH,
|
|
PEGPL_OMR2BAL,
|
|
PEGPL_OMR2MSKH,
|
|
PEGPL_OMR2MSKL,
|
|
PEGPL_OMR3BAH,
|
|
PEGPL_OMR3BAL,
|
|
PEGPL_OMR3MSKH,
|
|
PEGPL_OMR3MSKL,
|
|
PEGPL_REGBAH,
|
|
PEGPL_REGBAL,
|
|
PEGPL_REGMSK,
|
|
PEGPL_SPECIAL,
|
|
PEGPL_CFG,
|
|
};
|
|
|
|
static uint32_t dcr_read_pcie(void *opaque, int dcrn)
|
|
{
|
|
PPC460EXPCIEState *state = opaque;
|
|
uint32_t ret = 0;
|
|
|
|
switch (dcrn - state->dcrn_base) {
|
|
case PEGPL_CFGBAH:
|
|
ret = state->cfg_base >> 32;
|
|
break;
|
|
case PEGPL_CFGBAL:
|
|
ret = state->cfg_base;
|
|
break;
|
|
case PEGPL_CFGMSK:
|
|
ret = state->cfg_mask;
|
|
break;
|
|
case PEGPL_MSGBAH:
|
|
ret = state->msg_base >> 32;
|
|
break;
|
|
case PEGPL_MSGBAL:
|
|
ret = state->msg_base;
|
|
break;
|
|
case PEGPL_MSGMSK:
|
|
ret = state->msg_mask;
|
|
break;
|
|
case PEGPL_OMR1BAH:
|
|
ret = state->omr1_base >> 32;
|
|
break;
|
|
case PEGPL_OMR1BAL:
|
|
ret = state->omr1_base;
|
|
break;
|
|
case PEGPL_OMR1MSKH:
|
|
ret = state->omr1_mask >> 32;
|
|
break;
|
|
case PEGPL_OMR1MSKL:
|
|
ret = state->omr1_mask;
|
|
break;
|
|
case PEGPL_OMR2BAH:
|
|
ret = state->omr2_base >> 32;
|
|
break;
|
|
case PEGPL_OMR2BAL:
|
|
ret = state->omr2_base;
|
|
break;
|
|
case PEGPL_OMR2MSKH:
|
|
ret = state->omr2_mask >> 32;
|
|
break;
|
|
case PEGPL_OMR2MSKL:
|
|
ret = state->omr3_mask;
|
|
break;
|
|
case PEGPL_OMR3BAH:
|
|
ret = state->omr3_base >> 32;
|
|
break;
|
|
case PEGPL_OMR3BAL:
|
|
ret = state->omr3_base;
|
|
break;
|
|
case PEGPL_OMR3MSKH:
|
|
ret = state->omr3_mask >> 32;
|
|
break;
|
|
case PEGPL_OMR3MSKL:
|
|
ret = state->omr3_mask;
|
|
break;
|
|
case PEGPL_REGBAH:
|
|
ret = state->reg_base >> 32;
|
|
break;
|
|
case PEGPL_REGBAL:
|
|
ret = state->reg_base;
|
|
break;
|
|
case PEGPL_REGMSK:
|
|
ret = state->reg_mask;
|
|
break;
|
|
case PEGPL_SPECIAL:
|
|
ret = state->special;
|
|
break;
|
|
case PEGPL_CFG:
|
|
ret = state->cfg;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void dcr_write_pcie(void *opaque, int dcrn, uint32_t val)
|
|
{
|
|
PPC460EXPCIEState *s = opaque;
|
|
uint64_t size;
|
|
|
|
switch (dcrn - s->dcrn_base) {
|
|
case PEGPL_CFGBAH:
|
|
s->cfg_base = ((uint64_t)val << 32) | (s->cfg_base & 0xffffffff);
|
|
break;
|
|
case PEGPL_CFGBAL:
|
|
s->cfg_base = (s->cfg_base & 0xffffffff00000000ULL) | val;
|
|
break;
|
|
case PEGPL_CFGMSK:
|
|
s->cfg_mask = val;
|
|
size = ~(val & 0xfffffffe) + 1;
|
|
qemu_mutex_lock_iothread();
|
|
pcie_host_mmcfg_update(PCIE_HOST_BRIDGE(s), val & 1, s->cfg_base, size);
|
|
qemu_mutex_unlock_iothread();
|
|
break;
|
|
case PEGPL_MSGBAH:
|
|
s->msg_base = ((uint64_t)val << 32) | (s->msg_base & 0xffffffff);
|
|
break;
|
|
case PEGPL_MSGBAL:
|
|
s->msg_base = (s->msg_base & 0xffffffff00000000ULL) | val;
|
|
break;
|
|
case PEGPL_MSGMSK:
|
|
s->msg_mask = val;
|
|
break;
|
|
case PEGPL_OMR1BAH:
|
|
s->omr1_base = ((uint64_t)val << 32) | (s->omr1_base & 0xffffffff);
|
|
break;
|
|
case PEGPL_OMR1BAL:
|
|
s->omr1_base = (s->omr1_base & 0xffffffff00000000ULL) | val;
|
|
break;
|
|
case PEGPL_OMR1MSKH:
|
|
s->omr1_mask = ((uint64_t)val << 32) | (s->omr1_mask & 0xffffffff);
|
|
break;
|
|
case PEGPL_OMR1MSKL:
|
|
s->omr1_mask = (s->omr1_mask & 0xffffffff00000000ULL) | val;
|
|
break;
|
|
case PEGPL_OMR2BAH:
|
|
s->omr2_base = ((uint64_t)val << 32) | (s->omr2_base & 0xffffffff);
|
|
break;
|
|
case PEGPL_OMR2BAL:
|
|
s->omr2_base = (s->omr2_base & 0xffffffff00000000ULL) | val;
|
|
break;
|
|
case PEGPL_OMR2MSKH:
|
|
s->omr2_mask = ((uint64_t)val << 32) | (s->omr2_mask & 0xffffffff);
|
|
break;
|
|
case PEGPL_OMR2MSKL:
|
|
s->omr2_mask = (s->omr2_mask & 0xffffffff00000000ULL) | val;
|
|
break;
|
|
case PEGPL_OMR3BAH:
|
|
s->omr3_base = ((uint64_t)val << 32) | (s->omr3_base & 0xffffffff);
|
|
break;
|
|
case PEGPL_OMR3BAL:
|
|
s->omr3_base = (s->omr3_base & 0xffffffff00000000ULL) | val;
|
|
break;
|
|
case PEGPL_OMR3MSKH:
|
|
s->omr3_mask = ((uint64_t)val << 32) | (s->omr3_mask & 0xffffffff);
|
|
break;
|
|
case PEGPL_OMR3MSKL:
|
|
s->omr3_mask = (s->omr3_mask & 0xffffffff00000000ULL) | val;
|
|
break;
|
|
case PEGPL_REGBAH:
|
|
s->reg_base = ((uint64_t)val << 32) | (s->reg_base & 0xffffffff);
|
|
break;
|
|
case PEGPL_REGBAL:
|
|
s->reg_base = (s->reg_base & 0xffffffff00000000ULL) | val;
|
|
break;
|
|
case PEGPL_REGMSK:
|
|
s->reg_mask = val;
|
|
/* FIXME: how is size encoded? */
|
|
size = (val == 0x7001 ? 4096 : ~(val & 0xfffffffe) + 1);
|
|
break;
|
|
case PEGPL_SPECIAL:
|
|
s->special = val;
|
|
break;
|
|
case PEGPL_CFG:
|
|
s->cfg = val;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void ppc460ex_set_irq(void *opaque, int irq_num, int level)
|
|
{
|
|
PPC460EXPCIEState *s = opaque;
|
|
qemu_set_irq(s->irq[irq_num], level);
|
|
}
|
|
|
|
static void ppc460ex_pcie_realize(DeviceState *dev, Error **errp)
|
|
{
|
|
PPC460EXPCIEState *s = PPC460EX_PCIE_HOST(dev);
|
|
PCIHostState *pci = PCI_HOST_BRIDGE(dev);
|
|
int i, id;
|
|
char buf[16];
|
|
|
|
switch (s->dcrn_base) {
|
|
case DCRN_PCIE0_BASE:
|
|
id = 0;
|
|
break;
|
|
case DCRN_PCIE1_BASE:
|
|
id = 1;
|
|
break;
|
|
}
|
|
snprintf(buf, sizeof(buf), "pcie%d-io", id);
|
|
memory_region_init(&s->iomem, OBJECT(s), buf, UINT64_MAX);
|
|
for (i = 0; i < 4; i++) {
|
|
sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq[i]);
|
|
}
|
|
snprintf(buf, sizeof(buf), "pcie.%d", id);
|
|
pci->bus = pci_register_root_bus(DEVICE(s), buf, ppc460ex_set_irq,
|
|
pci_swizzle_map_irq_fn, s, &s->iomem,
|
|
get_system_io(), 0, 4, TYPE_PCIE_BUS);
|
|
}
|
|
|
|
static Property ppc460ex_pcie_props[] = {
|
|
DEFINE_PROP_INT32("dcrn-base", PPC460EXPCIEState, dcrn_base, -1),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void ppc460ex_pcie_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
|
|
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
|
|
dc->realize = ppc460ex_pcie_realize;
|
|
dc->props = ppc460ex_pcie_props;
|
|
dc->hotpluggable = false;
|
|
}
|
|
|
|
static const TypeInfo ppc460ex_pcie_host_info = {
|
|
.name = TYPE_PPC460EX_PCIE_HOST,
|
|
.parent = TYPE_PCIE_HOST_BRIDGE,
|
|
.instance_size = sizeof(PPC460EXPCIEState),
|
|
.class_init = ppc460ex_pcie_class_init,
|
|
};
|
|
|
|
static void ppc460ex_pcie_register(void)
|
|
{
|
|
type_register_static(&ppc460ex_pcie_host_info);
|
|
}
|
|
|
|
type_init(ppc460ex_pcie_register)
|
|
|
|
static void ppc460ex_pcie_register_dcrs(PPC460EXPCIEState *s, CPUPPCState *env)
|
|
{
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_CFGBAH, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_CFGBAL, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_CFGMSK, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_MSGBAH, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_MSGBAL, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_MSGMSK, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR1BAH, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR1BAL, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR1MSKH, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR1MSKL, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR2BAH, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR2BAL, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR2MSKH, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR2MSKL, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR3BAH, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR3BAL, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR3MSKH, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_OMR3MSKL, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_REGBAH, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_REGBAL, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_REGMSK, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_SPECIAL, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
ppc_dcr_register(env, s->dcrn_base + PEGPL_CFG, s,
|
|
&dcr_read_pcie, &dcr_write_pcie);
|
|
}
|
|
|
|
void ppc460ex_pcie_init(CPUPPCState *env)
|
|
{
|
|
DeviceState *dev;
|
|
|
|
dev = qdev_create(NULL, TYPE_PPC460EX_PCIE_HOST);
|
|
qdev_prop_set_int32(dev, "dcrn-base", DCRN_PCIE0_BASE);
|
|
qdev_init_nofail(dev);
|
|
object_property_set_bool(OBJECT(dev), true, "realized", NULL);
|
|
ppc460ex_pcie_register_dcrs(PPC460EX_PCIE_HOST(dev), env);
|
|
|
|
dev = qdev_create(NULL, TYPE_PPC460EX_PCIE_HOST);
|
|
qdev_prop_set_int32(dev, "dcrn-base", DCRN_PCIE1_BASE);
|
|
qdev_init_nofail(dev);
|
|
object_property_set_bool(OBJECT(dev), true, "realized", NULL);
|
|
ppc460ex_pcie_register_dcrs(PPC460EX_PCIE_HOST(dev), env);
|
|
}
|