diff options
author | BALATON Zoltan <balaton@eik.bme.hu> | 2022-10-19 18:02:53 +0200 |
---|---|---|
committer | Daniel Henrique Barboza <danielhb413@gmail.com> | 2022-10-28 13:15:22 -0300 |
commit | fa446fc54082c0c87a2edf7048bd17112773f0ef (patch) | |
tree | 5c3e3e5b2598adc2c2936d4e39279c2ef7e22936 | |
parent | 2a48dd7cbd456ac2e27b3cf66cfb7e2e1886dbf4 (diff) | |
download | qemu-fa446fc54082c0c87a2edf7048bd17112773f0ef.zip qemu-fa446fc54082c0c87a2edf7048bd17112773f0ef.tar.gz qemu-fa446fc54082c0c87a2edf7048bd17112773f0ef.tar.bz2 |
ppc4xx_devs.c: Move DDR SDRAM controller model to ppc4xx_sdram.c
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <3ea98072dbeb757942e25dcfcdd6a7a47738d2ca.1666194485.git.balaton@eik.bme.hu>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
-rw-r--r-- | hw/ppc/ppc4xx_devs.c | 352 | ||||
-rw-r--r-- | hw/ppc/ppc4xx_sdram.c | 365 |
2 files changed, 365 insertions, 352 deletions
diff --git a/hw/ppc/ppc4xx_devs.c b/hw/ppc/ppc4xx_devs.c index 12af90f..f737dbb 100644 --- a/hw/ppc/ppc4xx_devs.c +++ b/hw/ppc/ppc4xx_devs.c @@ -24,357 +24,10 @@ #include "qemu/osdep.h" #include "qemu/units.h" -#include "sysemu/reset.h" #include "cpu.h" -#include "hw/irq.h" -#include "hw/ppc/ppc.h" #include "hw/ppc/ppc4xx.h" #include "hw/qdev-properties.h" -#include "qemu/log.h" -#include "exec/address-spaces.h" -#include "qemu/error-report.h" #include "qapi/error.h" -#include "trace.h" - -/*****************************************************************************/ -/* SDRAM controller */ -enum { - SDRAM0_CFGADDR = 0x010, - SDRAM0_CFGDATA = 0x011, -}; - -/* - * 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_ddr_bcr(hwaddr ram_base, hwaddr ram_size) -{ - uint32_t bcr; - - switch (ram_size) { - case 4 * MiB: - bcr = 0; - break; - case 8 * MiB: - bcr = 0x20000; - break; - case 16 * MiB: - bcr = 0x40000; - break; - case 32 * MiB: - bcr = 0x60000; - break; - case 64 * MiB: - bcr = 0x80000; - break; - case 128 * MiB: - bcr = 0xA0000; - break; - case 256 * MiB: - bcr = 0xC0000; - break; - default: - qemu_log_mask(LOG_GUEST_ERROR, - "%s: invalid RAM size 0x%" HWADDR_PRIx "\n", __func__, - ram_size); - return 0; - } - bcr |= ram_base & 0xFF800000; - bcr |= 1; - - return bcr; -} - -static inline hwaddr sdram_ddr_base(uint32_t bcr) -{ - return bcr & 0xFF800000; -} - -static target_ulong sdram_ddr_size(uint32_t bcr) -{ - target_ulong size; - int sh; - - sh = (bcr >> 17) & 0x7; - if (sh == 7) { - size = -1; - } else { - size = (4 * MiB) << sh; - } - - return size; -} - -static void sdram_ddr_set_bcr(Ppc4xxSdramDdrState *sdram, int i, - uint32_t bcr, int enabled) -{ - if (sdram->bank[i].bcr & 1) { - /* Unmap RAM */ - trace_ppc4xx_sdram_unmap(sdram_ddr_base(sdram->bank[i].bcr), - sdram_ddr_size(sdram->bank[i].bcr)); - memory_region_del_subregion(get_system_memory(), - &sdram->bank[i].container); - memory_region_del_subregion(&sdram->bank[i].container, - &sdram->bank[i].ram); - object_unparent(OBJECT(&sdram->bank[i].container)); - } - sdram->bank[i].bcr = bcr & 0xFFDEE001; - if (enabled && (bcr & 1)) { - trace_ppc4xx_sdram_map(sdram_ddr_base(bcr), sdram_ddr_size(bcr)); - memory_region_init(&sdram->bank[i].container, NULL, "sdram-container", - sdram_ddr_size(bcr)); - memory_region_add_subregion(&sdram->bank[i].container, 0, - &sdram->bank[i].ram); - memory_region_add_subregion(get_system_memory(), - sdram_ddr_base(bcr), - &sdram->bank[i].container); - } -} - -static void sdram_ddr_map_bcr(Ppc4xxSdramDdrState *sdram) -{ - int i; - - for (i = 0; i < sdram->nbanks; i++) { - if (sdram->bank[i].size != 0) { - sdram_ddr_set_bcr(sdram, i, sdram_ddr_bcr(sdram->bank[i].base, - sdram->bank[i].size), 1); - } else { - sdram_ddr_set_bcr(sdram, i, 0, 0); - } - } -} - -static void sdram_ddr_unmap_bcr(Ppc4xxSdramDdrState *sdram) -{ - int i; - - for (i = 0; i < sdram->nbanks; i++) { - trace_ppc4xx_sdram_unmap(sdram_ddr_base(sdram->bank[i].bcr), - sdram_ddr_size(sdram->bank[i].bcr)); - memory_region_del_subregion(get_system_memory(), - &sdram->bank[i].ram); - } -} - -static uint32_t sdram_ddr_dcr_read(void *opaque, int dcrn) -{ - Ppc4xxSdramDdrState *sdram = opaque; - uint32_t ret; - - 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->bank[0].bcr; - break; - case 0x44: /* SDRAM_B1CR */ - ret = sdram->bank[1].bcr; - break; - case 0x48: /* SDRAM_B2CR */ - ret = sdram->bank[2].bcr; - break; - case 0x4C: /* SDRAM_B3CR */ - ret = sdram->bank[3].bcr; - 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 = 0; - break; - } - - return ret; -} - -static void sdram_ddr_dcr_write(void *opaque, int dcrn, uint32_t val) -{ - Ppc4xxSdramDdrState *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)) { - trace_ppc4xx_sdram_enable("enable"); - /* validate all RAM mappings */ - sdram_ddr_map_bcr(sdram); - sdram->status &= ~0x80000000; - } else if ((sdram->cfg & 0x80000000) && !(val & 0x80000000)) { - trace_ppc4xx_sdram_enable("disable"); - /* invalidate all RAM mappings */ - sdram_ddr_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_ddr_set_bcr(sdram, 0, val, sdram->cfg & 0x80000000); - break; - case 0x44: /* SDRAM_B1CR */ - sdram_ddr_set_bcr(sdram, 1, val, sdram->cfg & 0x80000000); - break; - case 0x48: /* SDRAM_B2CR */ - sdram_ddr_set_bcr(sdram, 2, val, sdram->cfg & 0x80000000); - break; - case 0x4C: /* SDRAM_B3CR */ - sdram_ddr_set_bcr(sdram, 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 ppc4xx_sdram_ddr_reset(DeviceState *dev) -{ - Ppc4xxSdramDdrState *sdram = PPC4xx_SDRAM_DDR(dev); - - sdram->addr = 0; - sdram->bear = 0; - sdram->besr0 = 0; /* No error */ - sdram->besr1 = 0; /* No error */ - sdram->cfg = 0; - sdram->ecccfg = 0; /* No ECC */ - sdram->eccesr = 0; /* No error */ - sdram->pmit = 0x07C00000; - sdram->rtr = 0x05F00000; - sdram->tr = 0x00854009; - /* We pre-initialize RAM banks */ - sdram->status = 0; - sdram->cfg = 0x00800000; -} - -static void ppc4xx_sdram_ddr_realize(DeviceState *dev, Error **errp) -{ - Ppc4xxSdramDdrState *s = PPC4xx_SDRAM_DDR(dev); - Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev); - const ram_addr_t valid_bank_sizes[] = { - 256 * MiB, 128 * MiB, 64 * MiB, 32 * MiB, 16 * MiB, 8 * MiB, 4 * MiB, 0 - }; - - if (s->nbanks < 1 || s->nbanks > 4) { - error_setg(errp, "Invalid number of RAM banks"); - return; - } - if (!s->dram_mr) { - error_setg(errp, "Missing dram memory region"); - return; - } - ppc4xx_sdram_banks(s->dram_mr, s->nbanks, s->bank, valid_bank_sizes); - - sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq); - - ppc4xx_dcr_register(dcr, SDRAM0_CFGADDR, - s, &sdram_ddr_dcr_read, &sdram_ddr_dcr_write); - ppc4xx_dcr_register(dcr, SDRAM0_CFGDATA, - s, &sdram_ddr_dcr_read, &sdram_ddr_dcr_write); -} - -static Property ppc4xx_sdram_ddr_props[] = { - DEFINE_PROP_LINK("dram", Ppc4xxSdramDdrState, dram_mr, TYPE_MEMORY_REGION, - MemoryRegion *), - DEFINE_PROP_UINT32("nbanks", Ppc4xxSdramDdrState, nbanks, 4), - DEFINE_PROP_END_OF_LIST(), -}; - -static void ppc4xx_sdram_ddr_class_init(ObjectClass *oc, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(oc); - - dc->realize = ppc4xx_sdram_ddr_realize; - dc->reset = ppc4xx_sdram_ddr_reset; - /* Reason: only works as function of a ppc4xx SoC */ - dc->user_creatable = false; - device_class_set_props(dc, ppc4xx_sdram_ddr_props); -} - -void ppc4xx_sdram_ddr_enable(Ppc4xxSdramDdrState *s) -{ - sdram_ddr_dcr_write(s, SDRAM0_CFGADDR, 0x20); - sdram_ddr_dcr_write(s, SDRAM0_CFGDATA, 0x80000000); -} /* * Split RAM between SDRAM banks. @@ -963,11 +616,6 @@ static void ppc4xx_dcr_class_init(ObjectClass *oc, void *data) static const TypeInfo ppc4xx_types[] = { { - .name = TYPE_PPC4xx_SDRAM_DDR, - .parent = TYPE_PPC4xx_DCR_DEVICE, - .instance_size = sizeof(Ppc4xxSdramDdrState), - .class_init = ppc4xx_sdram_ddr_class_init, - }, { .name = TYPE_PPC4xx_MAL, .parent = TYPE_PPC4xx_DCR_DEVICE, .instance_size = sizeof(Ppc4xxMalState), diff --git a/hw/ppc/ppc4xx_sdram.c b/hw/ppc/ppc4xx_sdram.c index b49a7ed..d88363b 100644 --- a/hw/ppc/ppc4xx_sdram.c +++ b/hw/ppc/ppc4xx_sdram.c @@ -1,4 +1,27 @@ /* + * QEMU PowerPC 4xx embedded processors SDRAM controller emulation + * + * DDR SDRAM controller: + * Copyright (c) 2007 Jocelyn Mayer + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * * DDR2 SDRAM controller: * Copyright (c) 2012 François Revol * Copyright (c) 2016-2019 BALATON Zoltan @@ -9,7 +32,9 @@ #include "qemu/osdep.h" #include "qemu/units.h" #include "qapi/error.h" +#include "qemu/log.h" #include "exec/address-spaces.h" /* get_system_memory() */ +#include "exec/cpu-defs.h" /* target_ulong */ #include "hw/irq.h" #include "hw/qdev-properties.h" #include "hw/ppc/ppc4xx.h" @@ -39,6 +64,341 @@ enum { }; /*****************************************************************************/ +/* DDR SDRAM controller */ +/* + * 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_ddr_bcr(hwaddr ram_base, hwaddr ram_size) +{ + uint32_t bcr; + + switch (ram_size) { + case 4 * MiB: + bcr = 0; + break; + case 8 * MiB: + bcr = 0x20000; + break; + case 16 * MiB: + bcr = 0x40000; + break; + case 32 * MiB: + bcr = 0x60000; + break; + case 64 * MiB: + bcr = 0x80000; + break; + case 128 * MiB: + bcr = 0xA0000; + break; + case 256 * MiB: + bcr = 0xC0000; + break; + default: + qemu_log_mask(LOG_GUEST_ERROR, + "%s: invalid RAM size 0x%" HWADDR_PRIx "\n", __func__, + ram_size); + return 0; + } + bcr |= ram_base & 0xFF800000; + bcr |= 1; + + return bcr; +} + +static inline hwaddr sdram_ddr_base(uint32_t bcr) +{ + return bcr & 0xFF800000; +} + +static target_ulong sdram_ddr_size(uint32_t bcr) +{ + target_ulong size; + int sh; + + sh = (bcr >> 17) & 0x7; + if (sh == 7) { + size = -1; + } else { + size = (4 * MiB) << sh; + } + + return size; +} + +static void sdram_ddr_set_bcr(Ppc4xxSdramDdrState *sdram, int i, + uint32_t bcr, int enabled) +{ + if (sdram->bank[i].bcr & 1) { + /* Unmap RAM */ + trace_ppc4xx_sdram_unmap(sdram_ddr_base(sdram->bank[i].bcr), + sdram_ddr_size(sdram->bank[i].bcr)); + memory_region_del_subregion(get_system_memory(), + &sdram->bank[i].container); + memory_region_del_subregion(&sdram->bank[i].container, + &sdram->bank[i].ram); + object_unparent(OBJECT(&sdram->bank[i].container)); + } + sdram->bank[i].bcr = bcr & 0xFFDEE001; + if (enabled && (bcr & 1)) { + trace_ppc4xx_sdram_map(sdram_ddr_base(bcr), sdram_ddr_size(bcr)); + memory_region_init(&sdram->bank[i].container, NULL, "sdram-container", + sdram_ddr_size(bcr)); + memory_region_add_subregion(&sdram->bank[i].container, 0, + &sdram->bank[i].ram); + memory_region_add_subregion(get_system_memory(), + sdram_ddr_base(bcr), + &sdram->bank[i].container); + } +} + +static void sdram_ddr_map_bcr(Ppc4xxSdramDdrState *sdram) +{ + int i; + + for (i = 0; i < sdram->nbanks; i++) { + if (sdram->bank[i].size != 0) { + sdram_ddr_set_bcr(sdram, i, sdram_ddr_bcr(sdram->bank[i].base, + sdram->bank[i].size), 1); + } else { + sdram_ddr_set_bcr(sdram, i, 0, 0); + } + } +} + +static void sdram_ddr_unmap_bcr(Ppc4xxSdramDdrState *sdram) +{ + int i; + + for (i = 0; i < sdram->nbanks; i++) { + trace_ppc4xx_sdram_unmap(sdram_ddr_base(sdram->bank[i].bcr), + sdram_ddr_size(sdram->bank[i].bcr)); + memory_region_del_subregion(get_system_memory(), + &sdram->bank[i].ram); + } +} + +static uint32_t sdram_ddr_dcr_read(void *opaque, int dcrn) +{ + Ppc4xxSdramDdrState *sdram = opaque; + uint32_t ret; + + 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->bank[0].bcr; + break; + case 0x44: /* SDRAM_B1CR */ + ret = sdram->bank[1].bcr; + break; + case 0x48: /* SDRAM_B2CR */ + ret = sdram->bank[2].bcr; + break; + case 0x4C: /* SDRAM_B3CR */ + ret = sdram->bank[3].bcr; + 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 = 0; + break; + } + + return ret; +} + +static void sdram_ddr_dcr_write(void *opaque, int dcrn, uint32_t val) +{ + Ppc4xxSdramDdrState *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)) { + trace_ppc4xx_sdram_enable("enable"); + /* validate all RAM mappings */ + sdram_ddr_map_bcr(sdram); + sdram->status &= ~0x80000000; + } else if ((sdram->cfg & 0x80000000) && !(val & 0x80000000)) { + trace_ppc4xx_sdram_enable("disable"); + /* invalidate all RAM mappings */ + sdram_ddr_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_ddr_set_bcr(sdram, 0, val, sdram->cfg & 0x80000000); + break; + case 0x44: /* SDRAM_B1CR */ + sdram_ddr_set_bcr(sdram, 1, val, sdram->cfg & 0x80000000); + break; + case 0x48: /* SDRAM_B2CR */ + sdram_ddr_set_bcr(sdram, 2, val, sdram->cfg & 0x80000000); + break; + case 0x4C: /* SDRAM_B3CR */ + sdram_ddr_set_bcr(sdram, 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 ppc4xx_sdram_ddr_reset(DeviceState *dev) +{ + Ppc4xxSdramDdrState *sdram = PPC4xx_SDRAM_DDR(dev); + + sdram->addr = 0; + sdram->bear = 0; + sdram->besr0 = 0; /* No error */ + sdram->besr1 = 0; /* No error */ + sdram->cfg = 0; + sdram->ecccfg = 0; /* No ECC */ + sdram->eccesr = 0; /* No error */ + sdram->pmit = 0x07C00000; + sdram->rtr = 0x05F00000; + sdram->tr = 0x00854009; + /* We pre-initialize RAM banks */ + sdram->status = 0; + sdram->cfg = 0x00800000; +} + +static void ppc4xx_sdram_ddr_realize(DeviceState *dev, Error **errp) +{ + Ppc4xxSdramDdrState *s = PPC4xx_SDRAM_DDR(dev); + Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev); + const ram_addr_t valid_bank_sizes[] = { + 256 * MiB, 128 * MiB, 64 * MiB, 32 * MiB, 16 * MiB, 8 * MiB, 4 * MiB, 0 + }; + + if (s->nbanks < 1 || s->nbanks > 4) { + error_setg(errp, "Invalid number of RAM banks"); + return; + } + if (!s->dram_mr) { + error_setg(errp, "Missing dram memory region"); + return; + } + ppc4xx_sdram_banks(s->dram_mr, s->nbanks, s->bank, valid_bank_sizes); + + sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq); + + ppc4xx_dcr_register(dcr, SDRAM0_CFGADDR, + s, &sdram_ddr_dcr_read, &sdram_ddr_dcr_write); + ppc4xx_dcr_register(dcr, SDRAM0_CFGDATA, + s, &sdram_ddr_dcr_read, &sdram_ddr_dcr_write); +} + +static Property ppc4xx_sdram_ddr_props[] = { + DEFINE_PROP_LINK("dram", Ppc4xxSdramDdrState, dram_mr, TYPE_MEMORY_REGION, + MemoryRegion *), + DEFINE_PROP_UINT32("nbanks", Ppc4xxSdramDdrState, nbanks, 4), + DEFINE_PROP_END_OF_LIST(), +}; + +static void ppc4xx_sdram_ddr_class_init(ObjectClass *oc, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(oc); + + dc->realize = ppc4xx_sdram_ddr_realize; + dc->reset = ppc4xx_sdram_ddr_reset; + /* Reason: only works as function of a ppc4xx SoC */ + dc->user_creatable = false; + device_class_set_props(dc, ppc4xx_sdram_ddr_props); +} + +void ppc4xx_sdram_ddr_enable(Ppc4xxSdramDdrState *s) +{ + sdram_ddr_dcr_write(s, SDRAM0_CFGADDR, 0x20); + sdram_ddr_dcr_write(s, SDRAM0_CFGDATA, 0x80000000); +} + +/*****************************************************************************/ /* DDR2 SDRAM controller */ enum { SDRAM_R0BAS = 0x40, @@ -338,6 +698,11 @@ void ppc4xx_sdram_ddr2_enable(Ppc4xxSdramDdr2State *s) static const TypeInfo ppc4xx_sdram_types[] = { { + .name = TYPE_PPC4xx_SDRAM_DDR, + .parent = TYPE_PPC4xx_DCR_DEVICE, + .instance_size = sizeof(Ppc4xxSdramDdrState), + .class_init = ppc4xx_sdram_ddr_class_init, + }, { .name = TYPE_PPC4xx_SDRAM_DDR2, .parent = TYPE_PPC4xx_DCR_DEVICE, .instance_size = sizeof(Ppc4xxSdramDdr2State), |