diff --git a/docs/system/arm/aspeed.rst b/docs/system/arm/aspeed.rst index 690bada784..d1fb8f25b3 100644 --- a/docs/system/arm/aspeed.rst +++ b/docs/system/arm/aspeed.rst @@ -48,6 +48,7 @@ Supported devices * UART * Ethernet controllers * Front LEDs (PCA9552 on I2C bus) + * LPC Peripheral Controller (a subset of subdevices are supported) Missing devices @@ -56,7 +57,6 @@ Missing devices * Coprocessor support * ADC (out of tree implementation) * PWM and Fan Controller - * LPC Bus Controller * Slave GPIO Controller * Super I/O Controller * Hash/Crypto Engine @@ -72,18 +72,22 @@ Missing devices Boot options ------------ -The Aspeed machines can be started using the -kernel option to load a -Linux kernel or from a firmware image which can be downloaded from the -OpenPOWER jenkins : +The Aspeed machines can be started using the ``-kernel`` option to +load a Linux kernel or from a firmware. Images can be downloaded from +the OpenBMC jenkins : - https://openpower.xyz/ + https://jenkins.openbmc.org/job/ci-openbmc/lastSuccessfulBuild/distro=ubuntu,label=docker-builder + +or directly from the OpenBMC GitHub release repository : + + https://github.com/openbmc/openbmc/releases The image should be attached as an MTD drive. Run : .. code-block:: bash $ qemu-system-arm -M romulus-bmc -nic user \ - -drive file=flash-romulus,format=raw,if=mtd -nographic + -drive file=obmc-phosphor-image-romulus.static.mtd,format=raw,if=mtd -nographic Options specific to Aspeed machines are : diff --git a/hw/arm/aspeed_ast2600.c b/hw/arm/aspeed_ast2600.c index bf31ca351f..bc87e754a3 100644 --- a/hw/arm/aspeed_ast2600.c +++ b/hw/arm/aspeed_ast2600.c @@ -65,7 +65,7 @@ static const hwaddr aspeed_soc_ast2600_memmap[] = { #define ASPEED_A7MPCORE_ADDR 0x40460000 -#define ASPEED_SOC_AST2600_MAX_IRQ 128 +#define AST2600_MAX_IRQ 197 /* Shared Peripheral Interrupt values below are offset by -32 from datasheet */ static const int aspeed_soc_ast2600_irqmap[] = { @@ -98,13 +98,13 @@ static const int aspeed_soc_ast2600_irqmap[] = { [ASPEED_DEV_WDT] = 24, [ASPEED_DEV_PWM] = 44, [ASPEED_DEV_LPC] = 35, - [ASPEED_DEV_IBT] = 35, /* LPC */ + [ASPEED_DEV_IBT] = 143, [ASPEED_DEV_I2C] = 110, /* 110 -> 125 */ [ASPEED_DEV_ETH1] = 2, [ASPEED_DEV_ETH2] = 3, [ASPEED_DEV_ETH3] = 32, [ASPEED_DEV_ETH4] = 33, - + [ASPEED_DEV_KCS] = 138, /* 138 -> 142 */ }; static qemu_irq aspeed_soc_get_irq(AspeedSoCState *s, int ctrl) @@ -211,6 +211,8 @@ static void aspeed_soc_ast2600_init(Object *obj) object_initialize_child(obj, "emmc-controller.sdhci", &s->emmc.slots[0], TYPE_SYSBUS_SDHCI); + + object_initialize_child(obj, "lpc", &s->lpc, TYPE_ASPEED_LPC); } /* @@ -241,8 +243,6 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp) /* CPU */ for (i = 0; i < sc->num_cpus; i++) { - object_property_set_int(OBJECT(&s->cpu[i]), "psci-conduit", - QEMU_PSCI_CONDUIT_SMC, &error_abort); if (sc->num_cpus > 1) { object_property_set_int(OBJECT(&s->cpu[i]), "reset-cbar", ASPEED_A7MPCORE_ADDR, &error_abort); @@ -253,11 +253,6 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp) object_property_set_int(OBJECT(&s->cpu[i]), "cntfrq", 1125000000, &error_abort); - /* - * TODO: the secondary CPUs are started and a boot helper - * is needed when using -kernel - */ - if (!qdev_realize(DEVICE(&s->cpu[i]), NULL, errp)) { return; } @@ -267,7 +262,7 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp) object_property_set_int(OBJECT(&s->a7mpcore), "num-cpu", sc->num_cpus, &error_abort); object_property_set_int(OBJECT(&s->a7mpcore), "num-irq", - ASPEED_SOC_AST2600_MAX_IRQ + GIC_INTERNAL, + ROUND_UP(AST2600_MAX_IRQ + GIC_INTERNAL, 32), &error_abort); sysbus_realize(SYS_BUS_DEVICE(&s->a7mpcore), &error_abort); @@ -469,6 +464,40 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp) sysbus_mmio_map(SYS_BUS_DEVICE(&s->emmc), 0, sc->memmap[ASPEED_DEV_EMMC]); sysbus_connect_irq(SYS_BUS_DEVICE(&s->emmc), 0, aspeed_soc_get_irq(s, ASPEED_DEV_EMMC)); + + /* LPC */ + if (!sysbus_realize(SYS_BUS_DEVICE(&s->lpc), errp)) { + return; + } + sysbus_mmio_map(SYS_BUS_DEVICE(&s->lpc), 0, sc->memmap[ASPEED_DEV_LPC]); + + /* Connect the LPC IRQ to the GIC. It is otherwise unused. */ + sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 0, + aspeed_soc_get_irq(s, ASPEED_DEV_LPC)); + + /* + * On the AST2600 LPC subdevice IRQs are connected straight to the GIC. + * + * LPC subdevice IRQ sources are offset from 1 because the LPC model caters + * to the AST2400 and AST2500. SoCs before the AST2600 have one LPC IRQ + * shared across the subdevices, and the shared IRQ output to the VIC is at + * offset 0. + */ + sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_1, + qdev_get_gpio_in(DEVICE(&s->a7mpcore), + sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_1)); + + sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_2, + qdev_get_gpio_in(DEVICE(&s->a7mpcore), + sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_2)); + + sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_3, + qdev_get_gpio_in(DEVICE(&s->a7mpcore), + sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_3)); + + sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_4, + qdev_get_gpio_in(DEVICE(&s->a7mpcore), + sc->irqmap[ASPEED_DEV_KCS] + aspeed_lpc_kcs_4)); } static void aspeed_soc_ast2600_class_init(ObjectClass *oc, void *data) diff --git a/hw/arm/aspeed_soc.c b/hw/arm/aspeed_soc.c index 7eefd54ac0..057d053c84 100644 --- a/hw/arm/aspeed_soc.c +++ b/hw/arm/aspeed_soc.c @@ -112,7 +112,6 @@ static const int aspeed_soc_ast2400_irqmap[] = { [ASPEED_DEV_WDT] = 27, [ASPEED_DEV_PWM] = 28, [ASPEED_DEV_LPC] = 8, - [ASPEED_DEV_IBT] = 8, /* LPC */ [ASPEED_DEV_I2C] = 12, [ASPEED_DEV_ETH1] = 2, [ASPEED_DEV_ETH2] = 3, @@ -211,6 +210,8 @@ static void aspeed_soc_init(Object *obj) object_initialize_child(obj, "sdhci[*]", &s->sdhci.slots[i], TYPE_SYSBUS_SDHCI); } + + object_initialize_child(obj, "lpc", &s->lpc, TYPE_ASPEED_LPC); } static void aspeed_soc_realize(DeviceState *dev, Error **errp) @@ -393,6 +394,37 @@ static void aspeed_soc_realize(DeviceState *dev, Error **errp) sc->memmap[ASPEED_DEV_SDHCI]); sysbus_connect_irq(SYS_BUS_DEVICE(&s->sdhci), 0, aspeed_soc_get_irq(s, ASPEED_DEV_SDHCI)); + + /* LPC */ + if (!sysbus_realize(SYS_BUS_DEVICE(&s->lpc), errp)) { + return; + } + sysbus_mmio_map(SYS_BUS_DEVICE(&s->lpc), 0, sc->memmap[ASPEED_DEV_LPC]); + + /* Connect the LPC IRQ to the VIC */ + sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 0, + aspeed_soc_get_irq(s, ASPEED_DEV_LPC)); + + /* + * On the AST2400 and AST2500 the one LPC IRQ is shared between all of the + * subdevices. Connect the LPC subdevice IRQs to the LPC controller IRQ (by + * contrast, on the AST2600, the subdevice IRQs are connected straight to + * the GIC). + * + * LPC subdevice IRQ sources are offset from 1 because the shared IRQ output + * to the VIC is at offset 0. + */ + sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_1, + qdev_get_gpio_in(DEVICE(&s->lpc), aspeed_lpc_kcs_1)); + + sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_2, + qdev_get_gpio_in(DEVICE(&s->lpc), aspeed_lpc_kcs_2)); + + sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_3, + qdev_get_gpio_in(DEVICE(&s->lpc), aspeed_lpc_kcs_3)); + + sysbus_connect_irq(SYS_BUS_DEVICE(&s->lpc), 1 + aspeed_lpc_kcs_4, + qdev_get_gpio_in(DEVICE(&s->lpc), aspeed_lpc_kcs_4)); } static Property aspeed_soc_properties[] = { DEFINE_PROP_LINK("dram", AspeedSoCState, dram_mr, TYPE_MEMORY_REGION, diff --git a/hw/misc/aspeed_lpc.c b/hw/misc/aspeed_lpc.c new file mode 100644 index 0000000000..2dddb27c35 --- /dev/null +++ b/hw/misc/aspeed_lpc.c @@ -0,0 +1,486 @@ +/* + * ASPEED LPC Controller + * + * Copyright (C) 2017-2018 IBM Corp. + * + * This code is licensed under the GPL version 2 or later. See + * the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "qemu/log.h" +#include "qemu/error-report.h" +#include "hw/misc/aspeed_lpc.h" +#include "qapi/error.h" +#include "qapi/visitor.h" +#include "hw/irq.h" +#include "hw/qdev-properties.h" +#include "migration/vmstate.h" + +#define TO_REG(offset) ((offset) >> 2) + +#define HICR0 TO_REG(0x00) +#define HICR0_LPC3E BIT(7) +#define HICR0_LPC2E BIT(6) +#define HICR0_LPC1E BIT(5) +#define HICR1 TO_REG(0x04) +#define HICR2 TO_REG(0x08) +#define HICR2_IBFIE3 BIT(3) +#define HICR2_IBFIE2 BIT(2) +#define HICR2_IBFIE1 BIT(1) +#define HICR3 TO_REG(0x0C) +#define HICR4 TO_REG(0x10) +#define HICR4_KCSENBL BIT(2) +#define IDR1 TO_REG(0x24) +#define IDR2 TO_REG(0x28) +#define IDR3 TO_REG(0x2C) +#define ODR1 TO_REG(0x30) +#define ODR2 TO_REG(0x34) +#define ODR3 TO_REG(0x38) +#define STR1 TO_REG(0x3C) +#define STR_OBF BIT(0) +#define STR_IBF BIT(1) +#define STR_CMD_DATA BIT(3) +#define STR2 TO_REG(0x40) +#define STR3 TO_REG(0x44) +#define HICR5 TO_REG(0x80) +#define HICR6 TO_REG(0x84) +#define HICR7 TO_REG(0x88) +#define HICR8 TO_REG(0x8C) +#define HICRB TO_REG(0x100) +#define HICRB_IBFIE4 BIT(1) +#define HICRB_LPC4E BIT(0) +#define IDR4 TO_REG(0x114) +#define ODR4 TO_REG(0x118) +#define STR4 TO_REG(0x11C) + +enum aspeed_kcs_channel_id { + kcs_channel_1 = 0, + kcs_channel_2, + kcs_channel_3, + kcs_channel_4, +}; + +static const enum aspeed_lpc_subdevice aspeed_kcs_subdevice_map[] = { + [kcs_channel_1] = aspeed_lpc_kcs_1, + [kcs_channel_2] = aspeed_lpc_kcs_2, + [kcs_channel_3] = aspeed_lpc_kcs_3, + [kcs_channel_4] = aspeed_lpc_kcs_4, +}; + +struct aspeed_kcs_channel { + enum aspeed_kcs_channel_id id; + + int idr; + int odr; + int str; +}; + +static const struct aspeed_kcs_channel aspeed_kcs_channel_map[] = { + [kcs_channel_1] = { + .id = kcs_channel_1, + .idr = IDR1, + .odr = ODR1, + .str = STR1 + }, + + [kcs_channel_2] = { + .id = kcs_channel_2, + .idr = IDR2, + .odr = ODR2, + .str = STR2 + }, + + [kcs_channel_3] = { + .id = kcs_channel_3, + .idr = IDR3, + .odr = ODR3, + .str = STR3 + }, + + [kcs_channel_4] = { + .id = kcs_channel_4, + .idr = IDR4, + .odr = ODR4, + .str = STR4 + }, +}; + +struct aspeed_kcs_register_data { + const char *name; + int reg; + const struct aspeed_kcs_channel *chan; +}; + +static const struct aspeed_kcs_register_data aspeed_kcs_registers[] = { + { + .name = "idr1", + .reg = IDR1, + .chan = &aspeed_kcs_channel_map[kcs_channel_1], + }, + { + .name = "odr1", + .reg = ODR1, + .chan = &aspeed_kcs_channel_map[kcs_channel_1], + }, + { + .name = "str1", + .reg = STR1, + .chan = &aspeed_kcs_channel_map[kcs_channel_1], + }, + { + .name = "idr2", + .reg = IDR2, + .chan = &aspeed_kcs_channel_map[kcs_channel_2], + }, + { + .name = "odr2", + .reg = ODR2, + .chan = &aspeed_kcs_channel_map[kcs_channel_2], + }, + { + .name = "str2", + .reg = STR2, + .chan = &aspeed_kcs_channel_map[kcs_channel_2], + }, + { + .name = "idr3", + .reg = IDR3, + .chan = &aspeed_kcs_channel_map[kcs_channel_3], + }, + { + .name = "odr3", + .reg = ODR3, + .chan = &aspeed_kcs_channel_map[kcs_channel_3], + }, + { + .name = "str3", + .reg = STR3, + .chan = &aspeed_kcs_channel_map[kcs_channel_3], + }, + { + .name = "idr4", + .reg = IDR4, + .chan = &aspeed_kcs_channel_map[kcs_channel_4], + }, + { + .name = "odr4", + .reg = ODR4, + .chan = &aspeed_kcs_channel_map[kcs_channel_4], + }, + { + .name = "str4", + .reg = STR4, + .chan = &aspeed_kcs_channel_map[kcs_channel_4], + }, + { }, +}; + +static const struct aspeed_kcs_register_data * +aspeed_kcs_get_register_data_by_name(const char *name) +{ + const struct aspeed_kcs_register_data *pos = aspeed_kcs_registers; + + while (pos->name) { + if (!strcmp(pos->name, name)) { + return pos; + } + pos++; + } + + return NULL; +} + +static const struct aspeed_kcs_channel * +aspeed_kcs_get_channel_by_register(int reg) +{ + const struct aspeed_kcs_register_data *pos = aspeed_kcs_registers; + + while (pos->name) { + if (pos->reg == reg) { + return pos->chan; + } + pos++; + } + + return NULL; +} + +static void aspeed_kcs_get_register_property(Object *obj, + Visitor *v, + const char *name, + void *opaque, + Error **errp) +{ + const struct aspeed_kcs_register_data *data; + AspeedLPCState *s = ASPEED_LPC(obj); + uint32_t val; + + data = aspeed_kcs_get_register_data_by_name(name); + if (!data) { + return; + } + + if (!strncmp("odr", name, 3)) { + s->regs[data->chan->str] &= ~STR_OBF; + } + + val = s->regs[data->reg]; + + visit_type_uint32(v, name, &val, errp); +} + +static bool aspeed_kcs_channel_enabled(AspeedLPCState *s, + const struct aspeed_kcs_channel *channel) +{ + switch (channel->id) { + case kcs_channel_1: return s->regs[HICR0] & HICR0_LPC1E; + case kcs_channel_2: return s->regs[HICR0] & HICR0_LPC2E; + case kcs_channel_3: + return (s->regs[HICR0] & HICR0_LPC3E) && + (s->regs[HICR4] & HICR4_KCSENBL); + case kcs_channel_4: return s->regs[HICRB] & HICRB_LPC4E; + default: return false; + } +} + +static bool +aspeed_kcs_channel_ibf_irq_enabled(AspeedLPCState *s, + const struct aspeed_kcs_channel *channel) +{ + if (!aspeed_kcs_channel_enabled(s, channel)) { + return false; + } + + switch (channel->id) { + case kcs_channel_1: return s->regs[HICR2] & HICR2_IBFIE1; + case kcs_channel_2: return s->regs[HICR2] & HICR2_IBFIE2; + case kcs_channel_3: return s->regs[HICR2] & HICR2_IBFIE3; + case kcs_channel_4: return s->regs[HICRB] & HICRB_IBFIE4; + default: return false; + } +} + +static void aspeed_kcs_set_register_property(Object *obj, + Visitor *v, + const char *name, + void *opaque, + Error **errp) +{ + const struct aspeed_kcs_register_data *data; + AspeedLPCState *s = ASPEED_LPC(obj); + uint32_t val; + + data = aspeed_kcs_get_register_data_by_name(name); + if (!data) { + return; + } + + if (!visit_type_uint32(v, name, &val, errp)) { + return; + } + + if (strncmp("str", name, 3)) { + s->regs[data->reg] = val; + } + + if (!strncmp("idr", name, 3)) { + s->regs[data->chan->str] |= STR_IBF; + if (aspeed_kcs_channel_ibf_irq_enabled(s, data->chan)) { + enum aspeed_lpc_subdevice subdev; + + subdev = aspeed_kcs_subdevice_map[data->chan->id]; + qemu_irq_raise(s->subdevice_irqs[subdev]); + } + } +} + +static void aspeed_lpc_set_irq(void *opaque, int irq, int level) +{ + AspeedLPCState *s = (AspeedLPCState *)opaque; + + if (level) { + s->subdevice_irqs_pending |= BIT(irq); + } else { + s->subdevice_irqs_pending &= ~BIT(irq); + } + + qemu_set_irq(s->irq, !!s->subdevice_irqs_pending); +} + +static uint64_t aspeed_lpc_read(void *opaque, hwaddr offset, unsigned size) +{ + AspeedLPCState *s = ASPEED_LPC(opaque); + int reg = TO_REG(offset); + + if (reg >= ARRAY_SIZE(s->regs)) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Out-of-bounds read at offset 0x%" HWADDR_PRIx "\n", + __func__, offset); + return 0; + } + + switch (reg) { + case IDR1: + case IDR2: + case IDR3: + case IDR4: + { + const struct aspeed_kcs_channel *channel; + + channel = aspeed_kcs_get_channel_by_register(reg); + if (s->regs[channel->str] & STR_IBF) { + enum aspeed_lpc_subdevice subdev; + + subdev = aspeed_kcs_subdevice_map[channel->id]; + qemu_irq_lower(s->subdevice_irqs[subdev]); + } + + s->regs[channel->str] &= ~STR_IBF; + break; + } + default: + break; + } + + return s->regs[reg]; +} + +static void aspeed_lpc_write(void *opaque, hwaddr offset, uint64_t data, + unsigned int size) +{ + AspeedLPCState *s = ASPEED_LPC(opaque); + int reg = TO_REG(offset); + + if (reg >= ARRAY_SIZE(s->regs)) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Out-of-bounds write at offset 0x%" HWADDR_PRIx "\n", + __func__, offset); + return; + } + + + switch (reg) { + case ODR1: + case ODR2: + case ODR3: + case ODR4: + s->regs[aspeed_kcs_get_channel_by_register(reg)->str] |= STR_OBF; + break; + default: + break; + } + + s->regs[reg] = data; +} + +static const MemoryRegionOps aspeed_lpc_ops = { + .read = aspeed_lpc_read, + .write = aspeed_lpc_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .valid = { + .min_access_size = 1, + .max_access_size = 4, + }, +}; + +static void aspeed_lpc_reset(DeviceState *dev) +{ + struct AspeedLPCState *s = ASPEED_LPC(dev); + + s->subdevice_irqs_pending = 0; + + memset(s->regs, 0, sizeof(s->regs)); + + s->regs[HICR7] = s->hicr7; +} + +static void aspeed_lpc_realize(DeviceState *dev, Error **errp) +{ + AspeedLPCState *s = ASPEED_LPC(dev); + SysBusDevice *sbd = SYS_BUS_DEVICE(dev); + + sysbus_init_irq(sbd, &s->irq); + sysbus_init_irq(sbd, &s->subdevice_irqs[aspeed_lpc_kcs_1]); + sysbus_init_irq(sbd, &s->subdevice_irqs[aspeed_lpc_kcs_2]); + sysbus_init_irq(sbd, &s->subdevice_irqs[aspeed_lpc_kcs_3]); + sysbus_init_irq(sbd, &s->subdevice_irqs[aspeed_lpc_kcs_4]); + sysbus_init_irq(sbd, &s->subdevice_irqs[aspeed_lpc_ibt]); + + memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_lpc_ops, s, + TYPE_ASPEED_LPC, 0x1000); + + sysbus_init_mmio(sbd, &s->iomem); + + qdev_init_gpio_in(dev, aspeed_lpc_set_irq, ASPEED_LPC_NR_SUBDEVS); +} + +static void aspeed_lpc_init(Object *obj) +{ + object_property_add(obj, "idr1", "uint32", aspeed_kcs_get_register_property, + aspeed_kcs_set_register_property, NULL, NULL); + object_property_add(obj, "odr1", "uint32", aspeed_kcs_get_register_property, + aspeed_kcs_set_register_property, NULL, NULL); + object_property_add(obj, "str1", "uint32", aspeed_kcs_get_register_property, + aspeed_kcs_set_register_property, NULL, NULL); + object_property_add(obj, "idr2", "uint32", aspeed_kcs_get_register_property, + aspeed_kcs_set_register_property, NULL, NULL); + object_property_add(obj, "odr2", "uint32", aspeed_kcs_get_register_property, + aspeed_kcs_set_register_property, NULL, NULL); + object_property_add(obj, "str2", "uint32", aspeed_kcs_get_register_property, + aspeed_kcs_set_register_property, NULL, NULL); + object_property_add(obj, "idr3", "uint32", aspeed_kcs_get_register_property, + aspeed_kcs_set_register_property, NULL, NULL); + object_property_add(obj, "odr3", "uint32", aspeed_kcs_get_register_property, + aspeed_kcs_set_register_property, NULL, NULL); + object_property_add(obj, "str3", "uint32", aspeed_kcs_get_register_property, + aspeed_kcs_set_register_property, NULL, NULL); + object_property_add(obj, "idr4", "uint32", aspeed_kcs_get_register_property, + aspeed_kcs_set_register_property, NULL, NULL); + object_property_add(obj, "odr4", "uint32", aspeed_kcs_get_register_property, + aspeed_kcs_set_register_property, NULL, NULL); + object_property_add(obj, "str4", "uint32", aspeed_kcs_get_register_property, + aspeed_kcs_set_register_property, NULL, NULL); +} + +static const VMStateDescription vmstate_aspeed_lpc = { + .name = TYPE_ASPEED_LPC, + .version_id = 2, + .minimum_version_id = 2, + .fields = (VMStateField[]) { + VMSTATE_UINT32_ARRAY(regs, AspeedLPCState, ASPEED_LPC_NR_REGS), + VMSTATE_UINT32(subdevice_irqs_pending, AspeedLPCState), + VMSTATE_END_OF_LIST(), + } +}; + +static Property aspeed_lpc_properties[] = { + DEFINE_PROP_UINT32("hicr7", AspeedLPCState, hicr7, 0), + DEFINE_PROP_END_OF_LIST(), +}; + +static void aspeed_lpc_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->realize = aspeed_lpc_realize; + dc->reset = aspeed_lpc_reset; + dc->desc = "Aspeed LPC Controller", + dc->vmsd = &vmstate_aspeed_lpc; + device_class_set_props(dc, aspeed_lpc_properties); +} + +static const TypeInfo aspeed_lpc_info = { + .name = TYPE_ASPEED_LPC, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(AspeedLPCState), + .class_init = aspeed_lpc_class_init, + .instance_init = aspeed_lpc_init, +}; + +static void aspeed_lpc_register_types(void) +{ + type_register_static(&aspeed_lpc_info); +} + +type_init(aspeed_lpc_register_types); diff --git a/hw/misc/meson.build b/hw/misc/meson.build index e30a555db5..00356cf12e 100644 --- a/hw/misc/meson.build +++ b/hw/misc/meson.build @@ -103,7 +103,12 @@ softmmu_ss.add(when: 'CONFIG_ARMSSE_MHU', if_true: files('armsse-mhu.c')) softmmu_ss.add(when: 'CONFIG_PVPANIC_ISA', if_true: files('pvpanic-isa.c')) softmmu_ss.add(when: 'CONFIG_PVPANIC_PCI', if_true: files('pvpanic-pci.c')) softmmu_ss.add(when: 'CONFIG_AUX', if_true: files('auxbus.c')) -softmmu_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files('aspeed_scu.c', 'aspeed_sdmc.c', 'aspeed_xdma.c')) +softmmu_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files( + 'aspeed_lpc.c', + 'aspeed_scu.c', + 'aspeed_sdmc.c', + 'aspeed_xdma.c')) + softmmu_ss.add(when: 'CONFIG_MSF2', if_true: files('msf2-sysreg.c')) softmmu_ss.add(when: 'CONFIG_NRF51_SOC', if_true: files('nrf51_rng.c')) diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h index 11cfe6e358..9359d6da33 100644 --- a/include/hw/arm/aspeed_soc.h +++ b/include/hw/arm/aspeed_soc.h @@ -28,6 +28,7 @@ #include "hw/sd/aspeed_sdhci.h" #include "hw/usb/hcd-ehci.h" #include "qom/object.h" +#include "hw/misc/aspeed_lpc.h" #define ASPEED_SPIS_NUM 2 #define ASPEED_EHCIS_NUM 2 @@ -61,6 +62,7 @@ struct AspeedSoCState { AspeedGPIOState gpio_1_8v; AspeedSDHCIState sdhci; AspeedSDHCIState emmc; + AspeedLPCState lpc; }; #define TYPE_ASPEED_SOC "aspeed-soc" @@ -130,6 +132,7 @@ enum { ASPEED_DEV_SDRAM, ASPEED_DEV_XDMA, ASPEED_DEV_EMMC, + ASPEED_DEV_KCS, }; #endif /* ASPEED_SOC_H */ diff --git a/include/hw/misc/aspeed_lpc.h b/include/hw/misc/aspeed_lpc.h new file mode 100644 index 0000000000..df418cfcd3 --- /dev/null +++ b/include/hw/misc/aspeed_lpc.h @@ -0,0 +1,47 @@ +/* + * ASPEED LPC Controller + * + * Copyright (C) 2017-2018 IBM Corp. + * + * This code is licensed under the GPL version 2 or later. See + * the COPYING file in the top-level directory. + */ + +#ifndef ASPEED_LPC_H +#define ASPEED_LPC_H + +#include "hw/sysbus.h" + +#include + +#define TYPE_ASPEED_LPC "aspeed.lpc" +#define ASPEED_LPC(obj) OBJECT_CHECK(AspeedLPCState, (obj), TYPE_ASPEED_LPC) + +#define ASPEED_LPC_NR_REGS (0x260 >> 2) + +enum aspeed_lpc_subdevice { + aspeed_lpc_kcs_1 = 0, + aspeed_lpc_kcs_2, + aspeed_lpc_kcs_3, + aspeed_lpc_kcs_4, + aspeed_lpc_ibt, +}; + +#define ASPEED_LPC_NR_SUBDEVS 5 + +typedef struct AspeedLPCState { + /* */ + SysBusDevice parent; + + /*< public >*/ + MemoryRegion iomem; + qemu_irq irq; + + qemu_irq subdevice_irqs[ASPEED_LPC_NR_SUBDEVS]; + uint32_t subdevice_irqs_pending; + + uint32_t regs[ASPEED_LPC_NR_REGS]; + uint32_t hicr7; +} AspeedLPCState; + +#endif /* _ASPEED_LPC_H_ */