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-rw-r--r--MAINTAINERS9
-rw-r--r--docs/specs/fsi.rst122
-rw-r--r--docs/specs/index.rst1
-rw-r--r--hw/Kconfig1
-rw-r--r--hw/arm/Kconfig1
-rw-r--r--hw/arm/aspeed.c70
-rw-r--r--hw/arm/aspeed_ast10x0.c8
-rw-r--r--hw/arm/aspeed_ast2400.c15
-rw-r--r--hw/arm/aspeed_ast2600.c28
-rw-r--r--hw/arm/aspeed_soc_common.c8
-rw-r--r--hw/fsi/Kconfig7
-rw-r--r--hw/fsi/aspeed_apb2opb.c367
-rw-r--r--hw/fsi/cfam.c168
-rw-r--r--hw/fsi/fsi-master.c170
-rw-r--r--hw/fsi/fsi.c102
-rw-r--r--hw/fsi/lbus.c117
-rw-r--r--hw/fsi/meson.build2
-rw-r--r--hw/fsi/trace-events13
-rw-r--r--hw/fsi/trace.h1
-rw-r--r--hw/meson.build1
-rw-r--r--include/hw/arm/aspeed_soc.h8
-rw-r--r--include/hw/fsi/aspeed_apb2opb.h46
-rw-r--r--include/hw/fsi/cfam.h34
-rw-r--r--include/hw/fsi/fsi-master.h32
-rw-r--r--include/hw/fsi/fsi.h37
-rw-r--r--include/hw/fsi/lbus.h43
-rw-r--r--meson.build1
-rw-r--r--tests/avocado/machine_aspeed.py18
-rw-r--r--tests/qtest/aspeed_fsi-test.c205
-rw-r--r--tests/qtest/meson.build1
30 files changed, 1578 insertions, 58 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index dfaca83..2f9741b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3585,6 +3585,15 @@ F: tests/qtest/adm1272-test.c
F: tests/qtest/max34451-test.c
F: tests/qtest/isl_pmbus_vr-test.c
+FSI
+M: Ninad Palsule <ninad@linux.ibm.com>
+R: Cédric Le Goater <clg@kaod.org>
+S: Maintained
+F: hw/fsi/*
+F: include/hw/fsi/*
+F: docs/specs/fsi.rst
+F: tests/qtest/aspeed_fsi-test.c
+
Firmware schema specifications
M: Philippe Mathieu-Daudé <philmd@linaro.org>
R: Daniel P. Berrange <berrange@redhat.com>
diff --git a/docs/specs/fsi.rst b/docs/specs/fsi.rst
new file mode 100644
index 0000000..af87822
--- /dev/null
+++ b/docs/specs/fsi.rst
@@ -0,0 +1,122 @@
+======================================
+IBM's Flexible Service Interface (FSI)
+======================================
+
+The QEMU FSI emulation implements hardware interfaces between ASPEED SOC, FSI
+master/slave and the end engine.
+
+FSI is a point-to-point two wire interface which is capable of supporting
+distances of up to 4 meters. FSI interfaces have been used successfully for
+many years in IBM servers to attach IBM Flexible Support Processors(FSP) to
+CPUs and IBM ASICs.
+
+FSI allows a service processor access to the internal buses of a host POWER
+processor to perform configuration or debugging. FSI has long existed in POWER
+processes and so comes with some baggage, including how it has been integrated
+into the ASPEED SoC.
+
+Working backwards from the POWER processor, the fundamental pieces of interest
+for the implementation are: (see the `FSI specification`_ for more details)
+
+1. The Common FRU Access Macro (CFAM), an address space containing various
+ "engines" that drive accesses on buses internal and external to the POWER
+ chip. Examples include the SBEFIFO and I2C masters. The engines hang off of
+ an internal Local Bus (LBUS) which is described by the CFAM configuration
+ block.
+
+2. The FSI slave: The slave is the terminal point of the FSI bus for FSI
+ symbols addressed to it. Slaves can be cascaded off of one another. The
+ slave's configuration registers appear in address space of the CFAM to
+ which it is attached.
+
+3. The FSI master: A controller in the platform service processor (e.g. BMC)
+ driving CFAM engine accesses into the POWER chip. At the hardware level
+ FSI is a bit-based protocol supporting synchronous and DMA-driven accesses
+ of engines in a CFAM.
+
+4. The On-Chip Peripheral Bus (OPB): A low-speed bus typically found in POWER
+ processors. This now makes an appearance in the ASPEED SoC due to tight
+ integration of the FSI master IP with the OPB, mainly the existence of an
+ MMIO-mapping of the CFAM address straight onto a sub-region of the OPB
+ address space.
+
+5. An APB-to-OPB bridge enabling access to the OPB from the ARM core in the
+ AST2600. Hardware limitations prevent the OPB from being directly mapped
+ into APB, so all accesses are indirect through the bridge.
+
+The LBUS is modelled to maintain the qdev bus hierarchy and to take advantages
+of the object model to automatically generate the CFAM configuration block.
+The configuration block presents engines in the order they are attached to the
+CFAM's LBUS. Engine implementations should subclass the LBusDevice and set the
+'config' member of LBusDeviceClass to match the engine's type.
+
+CFAM designs offer a lot of flexibility, for instance it is possible for a
+CFAM to be simultaneously driven from multiple FSI links. The modeling is not
+so complete; it's assumed that each CFAM is attached to a single FSI slave (as
+a consequence the CFAM subclasses the FSI slave).
+
+As for FSI, its symbols and wire-protocol are not modelled at all. This is not
+necessary to get FSI off the ground thanks to the mapping of the CFAM address
+space onto the OPB address space - the models follow this directly and map the
+CFAM memory region into the OPB's memory region.
+
+The following commands start the ``rainier-bmc`` machine with built-in FSI
+model. There are no model specific arguments. Please check this document to
+learn more about Aspeed ``rainier-bmc`` machine: (:doc:`../../system/arm/aspeed`)
+
+.. code-block:: console
+
+ qemu-system-arm -M rainier-bmc -nographic \
+ -kernel fitImage-linux.bin \
+ -dtb aspeed-bmc-ibm-rainier.dtb \
+ -initrd obmc-phosphor-initramfs.rootfs.cpio.xz \
+ -drive file=obmc-phosphor-image.rootfs.wic.qcow2,if=sd,index=2 \
+ -append "rootwait console=ttyS4,115200n8 root=PARTLABEL=rofs-a"
+
+The implementation appears as following in the qemu device tree:
+
+.. code-block:: console
+
+ (qemu) info qtree
+ bus: main-system-bus
+ type System
+ ...
+ dev: aspeed.apb2opb, id ""
+ gpio-out "sysbus-irq" 1
+ mmio 000000001e79b000/0000000000001000
+ bus: opb.1
+ type opb
+ dev: fsi.master, id ""
+ bus: fsi.bus.1
+ type fsi.bus
+ dev: cfam.config, id ""
+ dev: cfam, id ""
+ bus: lbus.1
+ type lbus
+ dev: scratchpad, id ""
+ address = 0 (0x0)
+ bus: opb.0
+ type opb
+ dev: fsi.master, id ""
+ bus: fsi.bus.0
+ type fsi.bus
+ dev: cfam.config, id ""
+ dev: cfam, id ""
+ bus: lbus.0
+ type lbus
+ dev: scratchpad, id ""
+ address = 0 (0x0)
+
+pdbg is a simple application to allow debugging of the host POWER processors
+from the BMC. (see the `pdbg source repository`_ for more details)
+
+.. code-block:: console
+
+ root@p10bmc:~# pdbg -a getcfam 0x0
+ p0: 0x0 = 0xc0022d15
+
+.. _FSI specification:
+ https://openpowerfoundation.org/specifications/fsi/
+
+.. _pdbg source repository:
+ https://github.com/open-power/pdbg
diff --git a/docs/specs/index.rst b/docs/specs/index.rst
index b3f482b..1484e3e 100644
--- a/docs/specs/index.rst
+++ b/docs/specs/index.rst
@@ -24,6 +24,7 @@ guest hardware that is specific to QEMU.
acpi_erst
sev-guest-firmware
fw_cfg
+ fsi
vmw_pvscsi-spec
edu
ivshmem-spec
diff --git a/hw/Kconfig b/hw/Kconfig
index 9ca7b38..2c00936 100644
--- a/hw/Kconfig
+++ b/hw/Kconfig
@@ -9,6 +9,7 @@ source core/Kconfig
source cxl/Kconfig
source display/Kconfig
source dma/Kconfig
+source fsi/Kconfig
source gpio/Kconfig
source hyperv/Kconfig
source i2c/Kconfig
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index f927878..db08a00 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -580,6 +580,7 @@ config ASPEED_SOC
select LED
select PMBUS
select MAX31785
+ select FSI_APB2OPB_ASPEED
config MPS2
bool
diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index cc59176..fc8355c 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -1141,10 +1141,15 @@ static void aspeed_machine_class_props_init(ObjectClass *oc)
"Change the SPI Flash model");
}
-static int aspeed_soc_num_cpus(const char *soc_name)
+static void aspeed_machine_class_init_cpus_defaults(MachineClass *mc)
{
- AspeedSoCClass *sc = ASPEED_SOC_CLASS(object_class_by_name(soc_name));
- return sc->num_cpus;
+ AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(mc);
+ AspeedSoCClass *sc = ASPEED_SOC_CLASS(object_class_by_name(amc->soc_name));
+
+ mc->default_cpus = sc->num_cpus;
+ mc->min_cpus = sc->num_cpus;
+ mc->max_cpus = sc->num_cpus;
+ mc->valid_cpu_types = sc->valid_cpu_types;
}
static void aspeed_machine_class_init(ObjectClass *oc, void *data)
@@ -1176,8 +1181,7 @@ static void aspeed_machine_palmetto_class_init(ObjectClass *oc, void *data)
amc->num_cs = 1;
amc->i2c_init = palmetto_bmc_i2c_init;
mc->default_ram_size = 256 * MiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
static void aspeed_machine_quanta_q71l_class_init(ObjectClass *oc, void *data)
@@ -1193,8 +1197,7 @@ static void aspeed_machine_quanta_q71l_class_init(ObjectClass *oc, void *data)
amc->num_cs = 1;
amc->i2c_init = quanta_q71l_bmc_i2c_init;
mc->default_ram_size = 128 * MiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
}
static void aspeed_machine_supermicrox11_bmc_class_init(ObjectClass *oc,
@@ -1212,6 +1215,7 @@ static void aspeed_machine_supermicrox11_bmc_class_init(ObjectClass *oc,
amc->macs_mask = ASPEED_MAC0_ON | ASPEED_MAC1_ON;
amc->i2c_init = palmetto_bmc_i2c_init;
mc->default_ram_size = 256 * MiB;
+ aspeed_machine_class_init_cpus_defaults(mc);
}
static void aspeed_machine_supermicro_x11spi_bmc_class_init(ObjectClass *oc,
@@ -1229,8 +1233,7 @@ static void aspeed_machine_supermicro_x11spi_bmc_class_init(ObjectClass *oc,
amc->macs_mask = ASPEED_MAC0_ON | ASPEED_MAC1_ON;
amc->i2c_init = palmetto_bmc_i2c_init;
mc->default_ram_size = 512 * MiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
}
static void aspeed_machine_ast2500_evb_class_init(ObjectClass *oc, void *data)
@@ -1246,8 +1249,7 @@ static void aspeed_machine_ast2500_evb_class_init(ObjectClass *oc, void *data)
amc->num_cs = 1;
amc->i2c_init = ast2500_evb_i2c_init;
mc->default_ram_size = 512 * MiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
static void aspeed_machine_yosemitev2_class_init(ObjectClass *oc, void *data)
@@ -1264,8 +1266,7 @@ static void aspeed_machine_yosemitev2_class_init(ObjectClass *oc, void *data)
amc->num_cs = 2;
amc->i2c_init = yosemitev2_bmc_i2c_init;
mc->default_ram_size = 512 * MiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
static void aspeed_machine_romulus_class_init(ObjectClass *oc, void *data)
@@ -1281,8 +1282,7 @@ static void aspeed_machine_romulus_class_init(ObjectClass *oc, void *data)
amc->num_cs = 2;
amc->i2c_init = romulus_bmc_i2c_init;
mc->default_ram_size = 512 * MiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
static void aspeed_machine_tiogapass_class_init(ObjectClass *oc, void *data)
@@ -1299,9 +1299,7 @@ static void aspeed_machine_tiogapass_class_init(ObjectClass *oc, void *data)
amc->num_cs = 2;
amc->i2c_init = tiogapass_bmc_i2c_init;
mc->default_ram_size = 1 * GiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
static void aspeed_machine_sonorapass_class_init(ObjectClass *oc, void *data)
@@ -1317,8 +1315,7 @@ static void aspeed_machine_sonorapass_class_init(ObjectClass *oc, void *data)
amc->num_cs = 2;
amc->i2c_init = sonorapass_bmc_i2c_init;
mc->default_ram_size = 512 * MiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
static void aspeed_machine_witherspoon_class_init(ObjectClass *oc, void *data)
@@ -1334,8 +1331,7 @@ static void aspeed_machine_witherspoon_class_init(ObjectClass *oc, void *data)
amc->num_cs = 2;
amc->i2c_init = witherspoon_bmc_i2c_init;
mc->default_ram_size = 512 * MiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
static void aspeed_machine_ast2600_evb_class_init(ObjectClass *oc, void *data)
@@ -1354,8 +1350,7 @@ static void aspeed_machine_ast2600_evb_class_init(ObjectClass *oc, void *data)
ASPEED_MAC3_ON;
amc->i2c_init = ast2600_evb_i2c_init;
mc->default_ram_size = 1 * GiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
static void aspeed_machine_tacoma_class_init(ObjectClass *oc, void *data)
@@ -1373,8 +1368,7 @@ static void aspeed_machine_tacoma_class_init(ObjectClass *oc, void *data)
amc->macs_mask = ASPEED_MAC2_ON;
amc->i2c_init = witherspoon_bmc_i2c_init; /* Same board layout */
mc->default_ram_size = 1 * GiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
static void aspeed_machine_g220a_class_init(ObjectClass *oc, void *data)
@@ -1391,8 +1385,7 @@ static void aspeed_machine_g220a_class_init(ObjectClass *oc, void *data)
amc->macs_mask = ASPEED_MAC0_ON | ASPEED_MAC1_ON;
amc->i2c_init = g220a_bmc_i2c_init;
mc->default_ram_size = 1024 * MiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
static void aspeed_machine_fp5280g2_class_init(ObjectClass *oc, void *data)
@@ -1409,8 +1402,7 @@ static void aspeed_machine_fp5280g2_class_init(ObjectClass *oc, void *data)
amc->macs_mask = ASPEED_MAC0_ON | ASPEED_MAC1_ON;
amc->i2c_init = fp5280g2_bmc_i2c_init;
mc->default_ram_size = 512 * MiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
static void aspeed_machine_rainier_class_init(ObjectClass *oc, void *data)
@@ -1428,8 +1420,7 @@ static void aspeed_machine_rainier_class_init(ObjectClass *oc, void *data)
amc->macs_mask = ASPEED_MAC2_ON | ASPEED_MAC3_ON;
amc->i2c_init = rainier_bmc_i2c_init;
mc->default_ram_size = 1 * GiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
#define FUJI_BMC_RAM_SIZE ASPEED_RAM_SIZE(2 * GiB)
@@ -1450,8 +1441,7 @@ static void aspeed_machine_fuji_class_init(ObjectClass *oc, void *data)
amc->i2c_init = fuji_bmc_i2c_init;
amc->uart_default = ASPEED_DEV_UART1;
mc->default_ram_size = FUJI_BMC_RAM_SIZE;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
#define BLETCHLEY_BMC_RAM_SIZE ASPEED_RAM_SIZE(2 * GiB)
@@ -1471,8 +1461,7 @@ static void aspeed_machine_bletchley_class_init(ObjectClass *oc, void *data)
amc->macs_mask = ASPEED_MAC2_ON;
amc->i2c_init = bletchley_bmc_i2c_init;
mc->default_ram_size = BLETCHLEY_BMC_RAM_SIZE;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
}
static void fby35_reset(MachineState *state, ShutdownCause reason)
@@ -1514,6 +1503,7 @@ static void aspeed_machine_fby35_class_init(ObjectClass *oc, void *data)
amc->i2c_init = fby35_i2c_init;
/* FIXME: Replace this macro with something more general */
mc->default_ram_size = FUJI_BMC_RAM_SIZE;
+ aspeed_machine_class_init_cpus_defaults(mc);
}
#define AST1030_INTERNAL_FLASH_SIZE (1024 * 1024)
@@ -1587,11 +1577,11 @@ static void aspeed_minibmc_machine_ast1030_evb_class_init(ObjectClass *oc,
mc->init = aspeed_minibmc_machine_init;
amc->i2c_init = ast1030_evb_i2c_init;
mc->default_ram_size = 0;
- mc->default_cpus = mc->min_cpus = mc->max_cpus = 1;
amc->fmc_model = "sst25vf032b";
amc->spi_model = "sst25vf032b";
amc->num_cs = 2;
amc->macs_mask = 0;
+ aspeed_machine_class_init_cpus_defaults(mc);
}
static void aspeed_machine_qcom_dc_scm_v1_class_init(ObjectClass *oc,
@@ -1610,8 +1600,7 @@ static void aspeed_machine_qcom_dc_scm_v1_class_init(ObjectClass *oc,
amc->macs_mask = ASPEED_MAC2_ON | ASPEED_MAC3_ON;
amc->i2c_init = qcom_dc_scm_bmc_i2c_init;
mc->default_ram_size = 1 * GiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
static void aspeed_machine_qcom_firework_class_init(ObjectClass *oc,
@@ -1630,8 +1619,7 @@ static void aspeed_machine_qcom_firework_class_init(ObjectClass *oc,
amc->macs_mask = ASPEED_MAC2_ON | ASPEED_MAC3_ON;
amc->i2c_init = qcom_dc_scm_firework_i2c_init;
mc->default_ram_size = 1 * GiB;
- mc->default_cpus = mc->min_cpus = mc->max_cpus =
- aspeed_soc_num_cpus(amc->soc_name);
+ aspeed_machine_class_init_cpus_defaults(mc);
};
static const TypeInfo aspeed_machine_types[] = {
diff --git a/hw/arm/aspeed_ast10x0.c b/hw/arm/aspeed_ast10x0.c
index 8becb14..c3b5116 100644
--- a/hw/arm/aspeed_ast10x0.c
+++ b/hw/arm/aspeed_ast10x0.c
@@ -211,7 +211,7 @@ static void aspeed_soc_ast1030_realize(DeviceState *dev_soc, Error **errp)
/* AST1030 CPU Core */
armv7m = DEVICE(&a->armv7m);
qdev_prop_set_uint32(armv7m, "num-irq", 256);
- qdev_prop_set_string(armv7m, "cpu-type", sc->cpu_type);
+ qdev_prop_set_string(armv7m, "cpu-type", aspeed_soc_cpu_type(sc));
qdev_connect_clock_in(armv7m, "cpuclk", s->sysclk);
object_property_set_link(OBJECT(&a->armv7m), "memory",
OBJECT(s->memory), &error_abort);
@@ -417,13 +417,17 @@ static void aspeed_soc_ast1030_realize(DeviceState *dev_soc, Error **errp)
static void aspeed_soc_ast1030_class_init(ObjectClass *klass, void *data)
{
+ static const char * const valid_cpu_types[] = {
+ ARM_CPU_TYPE_NAME("cortex-m4"), /* TODO cortex-m4f */
+ NULL
+ };
DeviceClass *dc = DEVICE_CLASS(klass);
AspeedSoCClass *sc = ASPEED_SOC_CLASS(dc);
dc->realize = aspeed_soc_ast1030_realize;
sc->name = "ast1030-a1";
- sc->cpu_type = ARM_CPU_TYPE_NAME("cortex-m4"); /* TODO cortex-m4f */
+ sc->valid_cpu_types = valid_cpu_types;
sc->silicon_rev = AST1030_A1_SILICON_REV;
sc->sram_size = 0xc0000;
sc->secsram_size = 0x40000; /* 256 * KiB */
diff --git a/hw/arm/aspeed_ast2400.c b/hw/arm/aspeed_ast2400.c
index ad76035..8829561 100644
--- a/hw/arm/aspeed_ast2400.c
+++ b/hw/arm/aspeed_ast2400.c
@@ -156,7 +156,8 @@ static void aspeed_ast2400_soc_init(Object *obj)
}
for (i = 0; i < sc->num_cpus; i++) {
- object_initialize_child(obj, "cpu[*]", &a->cpu[i], sc->cpu_type);
+ object_initialize_child(obj, "cpu[*]", &a->cpu[i],
+ aspeed_soc_cpu_type(sc));
}
snprintf(typename, sizeof(typename), "aspeed.scu-%s", socname);
@@ -502,6 +503,10 @@ static void aspeed_ast2400_soc_realize(DeviceState *dev, Error **errp)
static void aspeed_soc_ast2400_class_init(ObjectClass *oc, void *data)
{
+ static const char * const valid_cpu_types[] = {
+ ARM_CPU_TYPE_NAME("arm926"),
+ NULL
+ };
AspeedSoCClass *sc = ASPEED_SOC_CLASS(oc);
DeviceClass *dc = DEVICE_CLASS(oc);
@@ -510,7 +515,7 @@ static void aspeed_soc_ast2400_class_init(ObjectClass *oc, void *data)
dc->user_creatable = false;
sc->name = "ast2400-a1";
- sc->cpu_type = ARM_CPU_TYPE_NAME("arm926");
+ sc->valid_cpu_types = valid_cpu_types;
sc->silicon_rev = AST2400_A1_SILICON_REV;
sc->sram_size = 0x8000;
sc->spis_num = 1;
@@ -526,6 +531,10 @@ static void aspeed_soc_ast2400_class_init(ObjectClass *oc, void *data)
static void aspeed_soc_ast2500_class_init(ObjectClass *oc, void *data)
{
+ static const char * const valid_cpu_types[] = {
+ ARM_CPU_TYPE_NAME("arm1176"),
+ NULL
+ };
AspeedSoCClass *sc = ASPEED_SOC_CLASS(oc);
DeviceClass *dc = DEVICE_CLASS(oc);
@@ -534,7 +543,7 @@ static void aspeed_soc_ast2500_class_init(ObjectClass *oc, void *data)
dc->user_creatable = false;
sc->name = "ast2500-a1";
- sc->cpu_type = ARM_CPU_TYPE_NAME("arm1176");
+ sc->valid_cpu_types = valid_cpu_types;
sc->silicon_rev = AST2500_A1_SILICON_REV;
sc->sram_size = 0x9000;
sc->spis_num = 2;
diff --git a/hw/arm/aspeed_ast2600.c b/hw/arm/aspeed_ast2600.c
index 386a88d..4ee32ea 100644
--- a/hw/arm/aspeed_ast2600.c
+++ b/hw/arm/aspeed_ast2600.c
@@ -76,6 +76,8 @@ static const hwaddr aspeed_soc_ast2600_memmap[] = {
[ASPEED_DEV_UART12] = 0x1E790600,
[ASPEED_DEV_UART13] = 0x1E790700,
[ASPEED_DEV_VUART] = 0x1E787000,
+ [ASPEED_DEV_FSI1] = 0x1E79B000,
+ [ASPEED_DEV_FSI2] = 0x1E79B100,
[ASPEED_DEV_I3C] = 0x1E7A0000,
[ASPEED_DEV_SDRAM] = 0x80000000,
};
@@ -133,6 +135,8 @@ static const int aspeed_soc_ast2600_irqmap[] = {
[ASPEED_DEV_ETH4] = 33,
[ASPEED_DEV_KCS] = 138, /* 138 -> 142 */
[ASPEED_DEV_DP] = 62,
+ [ASPEED_DEV_FSI1] = 100,
+ [ASPEED_DEV_FSI2] = 101,
[ASPEED_DEV_I3C] = 102, /* 102 -> 107 */
};
@@ -158,7 +162,8 @@ static void aspeed_soc_ast2600_init(Object *obj)
}
for (i = 0; i < sc->num_cpus; i++) {
- object_initialize_child(obj, "cpu[*]", &a->cpu[i], sc->cpu_type);
+ object_initialize_child(obj, "cpu[*]", &a->cpu[i],
+ aspeed_soc_cpu_type(sc));
}
snprintf(typename, sizeof(typename), "aspeed.scu-%s", socname);
@@ -265,6 +270,10 @@ static void aspeed_soc_ast2600_init(Object *obj)
object_initialize_child(obj, "emmc-boot-controller",
&s->emmc_boot_controller,
TYPE_UNIMPLEMENTED_DEVICE);
+
+ for (i = 0; i < ASPEED_FSI_NUM; i++) {
+ object_initialize_child(obj, "fsi[*]", &s->fsi[i], TYPE_ASPEED_APB2OPB);
+ }
}
/*
@@ -624,17 +633,32 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp)
return;
}
aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->sbc), 0, sc->memmap[ASPEED_DEV_SBC]);
+
+ /* FSI */
+ for (i = 0; i < ASPEED_FSI_NUM; i++) {
+ if (!sysbus_realize(SYS_BUS_DEVICE(&s->fsi[i]), errp)) {
+ return;
+ }
+ aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->fsi[i]), 0,
+ sc->memmap[ASPEED_DEV_FSI1 + i]);
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->fsi[i]), 0,
+ aspeed_soc_get_irq(s, ASPEED_DEV_FSI1 + i));
+ }
}
static void aspeed_soc_ast2600_class_init(ObjectClass *oc, void *data)
{
+ static const char * const valid_cpu_types[] = {
+ ARM_CPU_TYPE_NAME("cortex-a7"),
+ NULL
+ };
DeviceClass *dc = DEVICE_CLASS(oc);
AspeedSoCClass *sc = ASPEED_SOC_CLASS(oc);
dc->realize = aspeed_soc_ast2600_realize;
sc->name = "ast2600-a3";
- sc->cpu_type = ARM_CPU_TYPE_NAME("cortex-a7");
+ sc->valid_cpu_types = valid_cpu_types;
sc->silicon_rev = AST2600_A3_SILICON_REV;
sc->sram_size = 0x16400;
sc->spis_num = 2;
diff --git a/hw/arm/aspeed_soc_common.c b/hw/arm/aspeed_soc_common.c
index 828f610..123a0c4 100644
--- a/hw/arm/aspeed_soc_common.c
+++ b/hw/arm/aspeed_soc_common.c
@@ -18,6 +18,14 @@
#include "hw/char/serial.h"
+const char *aspeed_soc_cpu_type(AspeedSoCClass *sc)
+{
+ assert(sc->valid_cpu_types);
+ assert(sc->valid_cpu_types[0]);
+ assert(!sc->valid_cpu_types[1]);
+ return sc->valid_cpu_types[0];
+}
+
qemu_irq aspeed_soc_get_irq(AspeedSoCState *s, int dev)
{
return ASPEED_SOC_GET_CLASS(s)->get_irq(s, dev);
diff --git a/hw/fsi/Kconfig b/hw/fsi/Kconfig
new file mode 100644
index 0000000..9cee657
--- /dev/null
+++ b/hw/fsi/Kconfig
@@ -0,0 +1,7 @@
+config FSI_APB2OPB_ASPEED
+ bool
+ depends on ASPEED_SOC
+ select FSI
+
+config FSI
+ bool
diff --git a/hw/fsi/aspeed_apb2opb.c b/hw/fsi/aspeed_apb2opb.c
new file mode 100644
index 0000000..ea50718
--- /dev/null
+++ b/hw/fsi/aspeed_apb2opb.c
@@ -0,0 +1,367 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright (C) 2024 IBM Corp.
+ *
+ * ASPEED APB-OPB FSI interface
+ * IBM On-chip Peripheral Bus
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/log.h"
+#include "qom/object.h"
+#include "qapi/error.h"
+#include "trace.h"
+
+#include "hw/fsi/aspeed_apb2opb.h"
+#include "hw/qdev-core.h"
+
+#define TO_REG(x) (x >> 2)
+
+#define APB2OPB_VERSION TO_REG(0x00)
+#define APB2OPB_TRIGGER TO_REG(0x04)
+
+#define APB2OPB_CONTROL TO_REG(0x08)
+#define APB2OPB_CONTROL_OFF BE_GENMASK(31, 13)
+
+#define APB2OPB_OPB2FSI TO_REG(0x0c)
+#define APB2OPB_OPB2FSI_OFF BE_GENMASK(31, 22)
+
+#define APB2OPB_OPB0_SEL TO_REG(0x10)
+#define APB2OPB_OPB1_SEL TO_REG(0x28)
+#define APB2OPB_OPB_SEL_EN BIT(0)
+
+#define APB2OPB_OPB0_MODE TO_REG(0x14)
+#define APB2OPB_OPB1_MODE TO_REG(0x2c)
+#define APB2OPB_OPB_MODE_RD BIT(0)
+
+#define APB2OPB_OPB0_XFER TO_REG(0x18)
+#define APB2OPB_OPB1_XFER TO_REG(0x30)
+#define APB2OPB_OPB_XFER_FULL BIT(1)
+#define APB2OPB_OPB_XFER_HALF BIT(0)
+
+#define APB2OPB_OPB0_ADDR TO_REG(0x1c)
+#define APB2OPB_OPB0_WRITE_DATA TO_REG(0x20)
+
+#define APB2OPB_OPB1_ADDR TO_REG(0x34)
+#define APB2OPB_OPB1_WRITE_DATA TO_REG(0x38)
+
+#define APB2OPB_IRQ_STS TO_REG(0x48)
+#define APB2OPB_IRQ_STS_OPB1_TX_ACK BIT(17)
+#define APB2OPB_IRQ_STS_OPB0_TX_ACK BIT(16)
+
+#define APB2OPB_OPB0_WRITE_WORD_ENDIAN TO_REG(0x4c)
+#define APB2OPB_OPB0_WRITE_WORD_ENDIAN_BE 0x0011101b
+#define APB2OPB_OPB0_WRITE_BYTE_ENDIAN TO_REG(0x50)
+#define APB2OPB_OPB0_WRITE_BYTE_ENDIAN_BE 0x0c330f3f
+#define APB2OPB_OPB1_WRITE_WORD_ENDIAN TO_REG(0x54)
+#define APB2OPB_OPB1_WRITE_BYTE_ENDIAN TO_REG(0x58)
+#define APB2OPB_OPB0_READ_BYTE_ENDIAN TO_REG(0x5c)
+#define APB2OPB_OPB1_READ_BYTE_ENDIAN TO_REG(0x60)
+#define APB2OPB_OPB0_READ_WORD_ENDIAN_BE 0x00030b1b
+
+#define APB2OPB_OPB0_READ_DATA TO_REG(0x84)
+#define APB2OPB_OPB1_READ_DATA TO_REG(0x90)
+
+/*
+ * The following magic values came from AST2600 data sheet
+ * The register values are defined under section "FSI controller"
+ * as initial values.
+ */
+static const uint32_t aspeed_apb2opb_reset[ASPEED_APB2OPB_NR_REGS] = {
+ [APB2OPB_VERSION] = 0x000000a1,
+ [APB2OPB_OPB0_WRITE_WORD_ENDIAN] = 0x0044eee4,
+ [APB2OPB_OPB0_WRITE_BYTE_ENDIAN] = 0x0055aaff,
+ [APB2OPB_OPB1_WRITE_WORD_ENDIAN] = 0x00117717,
+ [APB2OPB_OPB1_WRITE_BYTE_ENDIAN] = 0xffaa5500,
+ [APB2OPB_OPB0_READ_BYTE_ENDIAN] = 0x0044eee4,
+ [APB2OPB_OPB1_READ_BYTE_ENDIAN] = 0x00117717
+};
+
+static void fsi_opb_fsi_master_address(FSIMasterState *fsi, hwaddr addr)
+{
+ memory_region_transaction_begin();
+ memory_region_set_address(&fsi->iomem, addr);
+ memory_region_transaction_commit();
+}
+
+static void fsi_opb_opb2fsi_address(FSIMasterState *fsi, hwaddr addr)
+{
+ memory_region_transaction_begin();
+ memory_region_set_address(&fsi->opb2fsi, addr);
+ memory_region_transaction_commit();
+}
+
+static uint64_t fsi_aspeed_apb2opb_read(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ AspeedAPB2OPBState *s = ASPEED_APB2OPB(opaque);
+ unsigned int reg = TO_REG(addr);
+
+ trace_fsi_aspeed_apb2opb_read(addr, size);
+
+ if (reg >= ASPEED_APB2OPB_NR_REGS) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Out of bounds read: 0x%"HWADDR_PRIx" for %u\n",
+ __func__, addr, size);
+ return 0;
+ }
+
+ return s->regs[reg];
+}
+
+static MemTxResult fsi_aspeed_apb2opb_rw(AddressSpace *as, hwaddr addr,
+ MemTxAttrs attrs, uint32_t *data,
+ uint32_t size, bool is_write)
+{
+ MemTxResult res;
+
+ if (is_write) {
+ switch (size) {
+ case 4:
+ address_space_stl_le(as, addr, *data, attrs, &res);
+ break;
+ case 2:
+ address_space_stw_le(as, addr, *data, attrs, &res);
+ break;
+ case 1:
+ address_space_stb(as, addr, *data, attrs, &res);
+ break;
+ default:
+ g_assert_not_reached();
+ }
+ } else {
+ switch (size) {
+ case 4:
+ *data = address_space_ldl_le(as, addr, attrs, &res);
+ break;
+ case 2:
+ *data = address_space_lduw_le(as, addr, attrs, &res);
+ break;
+ case 1:
+ *data = address_space_ldub(as, addr, attrs, &res);
+ break;
+ default:
+ g_assert_not_reached();
+ }
+ }
+ return res;
+}
+
+static void fsi_aspeed_apb2opb_write(void *opaque, hwaddr addr, uint64_t data,
+ unsigned size)
+{
+ AspeedAPB2OPBState *s = ASPEED_APB2OPB(opaque);
+ unsigned int reg = TO_REG(addr);
+
+ trace_fsi_aspeed_apb2opb_write(addr, size, data);
+
+ if (reg >= ASPEED_APB2OPB_NR_REGS) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Out of bounds write: %"HWADDR_PRIx" for %u\n",
+ __func__, addr, size);
+ return;
+ }
+
+ switch (reg) {
+ case APB2OPB_CONTROL:
+ fsi_opb_fsi_master_address(&s->fsi[0],
+ data & APB2OPB_CONTROL_OFF);
+ break;
+ case APB2OPB_OPB2FSI:
+ fsi_opb_opb2fsi_address(&s->fsi[0],
+ data & APB2OPB_OPB2FSI_OFF);
+ break;
+ case APB2OPB_OPB0_WRITE_WORD_ENDIAN:
+ if (data != APB2OPB_OPB0_WRITE_WORD_ENDIAN_BE) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Bridge needs to be driven as BE (0x%x)\n",
+ __func__, APB2OPB_OPB0_WRITE_WORD_ENDIAN_BE);
+ }
+ break;
+ case APB2OPB_OPB0_WRITE_BYTE_ENDIAN:
+ if (data != APB2OPB_OPB0_WRITE_BYTE_ENDIAN_BE) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Bridge needs to be driven as BE (0x%x)\n",
+ __func__, APB2OPB_OPB0_WRITE_BYTE_ENDIAN_BE);
+ }
+ break;
+ case APB2OPB_OPB0_READ_BYTE_ENDIAN:
+ if (data != APB2OPB_OPB0_READ_WORD_ENDIAN_BE) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Bridge needs to be driven as BE (0x%x)\n",
+ __func__, APB2OPB_OPB0_READ_WORD_ENDIAN_BE);
+ }
+ break;
+ case APB2OPB_TRIGGER:
+ {
+ uint32_t opb, op_mode, op_size, op_addr, op_data;
+ MemTxResult result;
+ bool is_write;
+ int index;
+ AddressSpace *as;
+
+ assert((s->regs[APB2OPB_OPB0_SEL] & APB2OPB_OPB_SEL_EN) ^
+ (s->regs[APB2OPB_OPB1_SEL] & APB2OPB_OPB_SEL_EN));
+
+ if (s->regs[APB2OPB_OPB0_SEL] & APB2OPB_OPB_SEL_EN) {
+ opb = 0;
+ op_mode = s->regs[APB2OPB_OPB0_MODE];
+ op_size = s->regs[APB2OPB_OPB0_XFER];
+ op_addr = s->regs[APB2OPB_OPB0_ADDR];
+ op_data = s->regs[APB2OPB_OPB0_WRITE_DATA];
+ } else if (s->regs[APB2OPB_OPB1_SEL] & APB2OPB_OPB_SEL_EN) {
+ opb = 1;
+ op_mode = s->regs[APB2OPB_OPB1_MODE];
+ op_size = s->regs[APB2OPB_OPB1_XFER];
+ op_addr = s->regs[APB2OPB_OPB1_ADDR];
+ op_data = s->regs[APB2OPB_OPB1_WRITE_DATA];
+ } else {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Invalid operation: 0x%"HWADDR_PRIx" for %u\n",
+ __func__, addr, size);
+ return;
+ }
+
+ if (op_size & ~(APB2OPB_OPB_XFER_HALF | APB2OPB_OPB_XFER_FULL)) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "OPB transaction failed: Unrecognized access width: %d\n",
+ op_size);
+ return;
+ }
+
+ op_size += 1;
+ is_write = !(op_mode & APB2OPB_OPB_MODE_RD);
+ index = opb ? APB2OPB_OPB1_READ_DATA : APB2OPB_OPB0_READ_DATA;
+ as = &s->opb[opb].as;
+
+ result = fsi_aspeed_apb2opb_rw(as, op_addr, MEMTXATTRS_UNSPECIFIED,
+ &op_data, op_size, is_write);
+ if (result != MEMTX_OK) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: OPB %s failed @%08x\n",
+ __func__, is_write ? "write" : "read", op_addr);
+ return;
+ }
+
+ if (!is_write) {
+ s->regs[index] = op_data;
+ }
+
+ s->regs[APB2OPB_IRQ_STS] |= opb ? APB2OPB_IRQ_STS_OPB1_TX_ACK
+ : APB2OPB_IRQ_STS_OPB0_TX_ACK;
+ break;
+ }
+ }
+
+ s->regs[reg] = data;
+}
+
+static const struct MemoryRegionOps aspeed_apb2opb_ops = {
+ .read = fsi_aspeed_apb2opb_read,
+ .write = fsi_aspeed_apb2opb_write,
+ .valid.max_access_size = 4,
+ .valid.min_access_size = 4,
+ .impl.max_access_size = 4,
+ .impl.min_access_size = 4,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static void fsi_aspeed_apb2opb_init(Object *o)
+{
+ AspeedAPB2OPBState *s = ASPEED_APB2OPB(o);
+ int i;
+
+ for (i = 0; i < ASPEED_FSI_NUM; i++) {
+ object_initialize_child(o, "fsi-master[*]", &s->fsi[i],
+ TYPE_FSI_MASTER);
+ }
+}
+
+static void fsi_aspeed_apb2opb_realize(DeviceState *dev, Error **errp)
+{
+ SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+ AspeedAPB2OPBState *s = ASPEED_APB2OPB(dev);
+ int i;
+
+ /*
+ * TODO: The OPBus model initializes the OPB address space in
+ * the .instance_init handler and this is problematic for test
+ * device-introspect-test. To avoid a memory corruption and a QEMU
+ * crash, qbus_init() should be called from realize(). Something to
+ * improve. Possibly, OPBus could also be removed.
+ */
+ for (i = 0; i < ASPEED_FSI_NUM; i++) {
+ qbus_init(&s->opb[i], sizeof(s->opb[i]), TYPE_OP_BUS, DEVICE(s),
+ NULL);
+ }
+
+ sysbus_init_irq(sbd, &s->irq);
+
+ memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_apb2opb_ops, s,
+ TYPE_ASPEED_APB2OPB, 0x1000);
+ sysbus_init_mmio(sbd, &s->iomem);
+
+ for (i = 0; i < ASPEED_FSI_NUM; i++) {
+ if (!qdev_realize(DEVICE(&s->fsi[i]), BUS(&s->opb[i]), errp)) {
+ return;
+ }
+
+ memory_region_add_subregion(&s->opb[i].mr, 0x80000000,
+ &s->fsi[i].iomem);
+
+ memory_region_add_subregion(&s->opb[i].mr, 0xa0000000,
+ &s->fsi[i].opb2fsi);
+ }
+}
+
+static void fsi_aspeed_apb2opb_reset(DeviceState *dev)
+{
+ AspeedAPB2OPBState *s = ASPEED_APB2OPB(dev);
+
+ memcpy(s->regs, aspeed_apb2opb_reset, ASPEED_APB2OPB_NR_REGS);
+}
+
+static void fsi_aspeed_apb2opb_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->desc = "ASPEED APB2OPB Bridge";
+ dc->realize = fsi_aspeed_apb2opb_realize;
+ dc->reset = fsi_aspeed_apb2opb_reset;
+}
+
+static const TypeInfo aspeed_apb2opb_info = {
+ .name = TYPE_ASPEED_APB2OPB,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_init = fsi_aspeed_apb2opb_init,
+ .instance_size = sizeof(AspeedAPB2OPBState),
+ .class_init = fsi_aspeed_apb2opb_class_init,
+};
+
+static void aspeed_apb2opb_register_types(void)
+{
+ type_register_static(&aspeed_apb2opb_info);
+}
+
+type_init(aspeed_apb2opb_register_types);
+
+static void fsi_opb_init(Object *o)
+{
+ OPBus *opb = OP_BUS(o);
+
+ memory_region_init(&opb->mr, 0, TYPE_FSI_OPB, UINT32_MAX);
+ address_space_init(&opb->as, &opb->mr, TYPE_FSI_OPB);
+}
+
+static const TypeInfo opb_info = {
+ .name = TYPE_OP_BUS,
+ .parent = TYPE_BUS,
+ .instance_init = fsi_opb_init,
+ .instance_size = sizeof(OPBus),
+};
+
+static void fsi_opb_register_types(void)
+{
+ type_register_static(&opb_info);
+}
+
+type_init(fsi_opb_register_types);
diff --git a/hw/fsi/cfam.c b/hw/fsi/cfam.c
new file mode 100644
index 0000000..c62f0f7
--- /dev/null
+++ b/hw/fsi/cfam.c
@@ -0,0 +1,168 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright (C) 2024 IBM Corp.
+ *
+ * IBM Common FRU Access Macro
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+
+#include "qapi/error.h"
+#include "trace.h"
+
+#include "hw/fsi/cfam.h"
+#include "hw/fsi/fsi.h"
+
+#include "hw/qdev-properties.h"
+
+#define ENGINE_CONFIG_NEXT BIT(31)
+#define ENGINE_CONFIG_TYPE_PEEK (0x02 << 4)
+#define ENGINE_CONFIG_TYPE_FSI (0x03 << 4)
+#define ENGINE_CONFIG_TYPE_SCRATCHPAD (0x06 << 4)
+
+/* Valid, slots, version, type, crc */
+#define CFAM_CONFIG_REG(__VER, __TYPE, __CRC) \
+ (ENGINE_CONFIG_NEXT | \
+ 0x00010000 | \
+ (__VER) | \
+ (__TYPE) | \
+ (__CRC))
+
+#define TO_REG(x) ((x) >> 2)
+
+#define CFAM_CONFIG_CHIP_ID TO_REG(0x00)
+#define CFAM_CONFIG_PEEK_STATUS TO_REG(0x04)
+#define CFAM_CONFIG_CHIP_ID_P9 0xc0022d15
+#define CFAM_CONFIG_CHIP_ID_BREAK 0xc0de0000
+
+static uint64_t fsi_cfam_config_read(void *opaque, hwaddr addr, unsigned size)
+{
+ trace_fsi_cfam_config_read(addr, size);
+
+ switch (addr) {
+ case 0x00:
+ return CFAM_CONFIG_CHIP_ID_P9;
+ case 0x04:
+ return CFAM_CONFIG_REG(0x1000, ENGINE_CONFIG_TYPE_PEEK, 0xc);
+ case 0x08:
+ return CFAM_CONFIG_REG(0x5000, ENGINE_CONFIG_TYPE_FSI, 0xa);
+ case 0xc:
+ return CFAM_CONFIG_REG(0x1000, ENGINE_CONFIG_TYPE_SCRATCHPAD, 0x7);
+ default:
+ /*
+ * The config table contains different engines from 0xc onwards.
+ * The scratch pad is already added at address 0xc. We need to add
+ * future engines from address 0x10 onwards. Returning 0 as engine
+ * is not implemented.
+ */
+ return 0;
+ }
+}
+
+static void fsi_cfam_config_write(void *opaque, hwaddr addr, uint64_t data,
+ unsigned size)
+{
+ FSICFAMState *cfam = FSI_CFAM(opaque);
+
+ trace_fsi_cfam_config_write(addr, size, data);
+
+ switch (TO_REG(addr)) {
+ case CFAM_CONFIG_CHIP_ID:
+ case CFAM_CONFIG_PEEK_STATUS:
+ if (data == CFAM_CONFIG_CHIP_ID_BREAK) {
+ bus_cold_reset(BUS(&cfam->lbus));
+ }
+ break;
+ default:
+ trace_fsi_cfam_config_write_noaddr(addr, size, data);
+ }
+}
+
+static const struct MemoryRegionOps cfam_config_ops = {
+ .read = fsi_cfam_config_read,
+ .write = fsi_cfam_config_write,
+ .valid.max_access_size = 4,
+ .valid.min_access_size = 4,
+ .impl.max_access_size = 4,
+ .impl.min_access_size = 4,
+ .endianness = DEVICE_BIG_ENDIAN,
+};
+
+static uint64_t fsi_cfam_unimplemented_read(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ trace_fsi_cfam_unimplemented_read(addr, size);
+
+ return 0;
+}
+
+static void fsi_cfam_unimplemented_write(void *opaque, hwaddr addr,
+ uint64_t data, unsigned size)
+{
+ trace_fsi_cfam_unimplemented_write(addr, size, data);
+}
+
+static const struct MemoryRegionOps fsi_cfam_unimplemented_ops = {
+ .read = fsi_cfam_unimplemented_read,
+ .write = fsi_cfam_unimplemented_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+};
+
+static void fsi_cfam_instance_init(Object *obj)
+{
+ FSICFAMState *s = FSI_CFAM(obj);
+
+ object_initialize_child(obj, "scratchpad", &s->scratchpad,
+ TYPE_FSI_SCRATCHPAD);
+}
+
+static void fsi_cfam_realize(DeviceState *dev, Error **errp)
+{
+ FSICFAMState *cfam = FSI_CFAM(dev);
+ FSISlaveState *slave = FSI_SLAVE(dev);
+
+ /* Each slave has a 2MiB address space */
+ memory_region_init_io(&cfam->mr, OBJECT(cfam), &fsi_cfam_unimplemented_ops,
+ cfam, TYPE_FSI_CFAM, 2 * MiB);
+
+ qbus_init(&cfam->lbus, sizeof(cfam->lbus), TYPE_FSI_LBUS, DEVICE(cfam),
+ NULL);
+
+ memory_region_init_io(&cfam->config_iomem, OBJECT(cfam), &cfam_config_ops,
+ cfam, TYPE_FSI_CFAM ".config", 0x400);
+
+ memory_region_add_subregion(&cfam->mr, 0, &cfam->config_iomem);
+ memory_region_add_subregion(&cfam->mr, 0x800, &slave->iomem);
+ memory_region_add_subregion(&cfam->mr, 0xc00, &cfam->lbus.mr);
+
+ /* Add scratchpad engine */
+ if (!qdev_realize(DEVICE(&cfam->scratchpad), BUS(&cfam->lbus), errp)) {
+ return;
+ }
+
+ FSILBusDevice *fsi_dev = FSI_LBUS_DEVICE(&cfam->scratchpad);
+ memory_region_add_subregion(&cfam->lbus.mr, 0, &fsi_dev->iomem);
+}
+
+static void fsi_cfam_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ dc->bus_type = TYPE_FSI_BUS;
+ dc->realize = fsi_cfam_realize;
+}
+
+static const TypeInfo fsi_cfam_info = {
+ .name = TYPE_FSI_CFAM,
+ .parent = TYPE_FSI_SLAVE,
+ .instance_init = fsi_cfam_instance_init,
+ .instance_size = sizeof(FSICFAMState),
+ .class_init = fsi_cfam_class_init,
+};
+
+static void fsi_cfam_register_types(void)
+{
+ type_register_static(&fsi_cfam_info);
+}
+
+type_init(fsi_cfam_register_types);
diff --git a/hw/fsi/fsi-master.c b/hw/fsi/fsi-master.c
new file mode 100644
index 0000000..a5f0598
--- /dev/null
+++ b/hw/fsi/fsi-master.c
@@ -0,0 +1,170 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright (C) 2024 IBM Corp.
+ *
+ * IBM Flexible Service Interface master
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu/log.h"
+#include "trace.h"
+
+#include "hw/fsi/fsi-master.h"
+
+#define TYPE_OP_BUS "opb"
+
+#define TO_REG(x) ((x) >> 2)
+
+#define FSI_MENP0 TO_REG(0x010)
+#define FSI_MENP32 TO_REG(0x014)
+#define FSI_MSENP0 TO_REG(0x018)
+#define FSI_MLEVP0 TO_REG(0x018)
+#define FSI_MSENP32 TO_REG(0x01c)
+#define FSI_MLEVP32 TO_REG(0x01c)
+#define FSI_MCENP0 TO_REG(0x020)
+#define FSI_MREFP0 TO_REG(0x020)
+#define FSI_MCENP32 TO_REG(0x024)
+#define FSI_MREFP32 TO_REG(0x024)
+
+#define FSI_MVER TO_REG(0x074)
+#define FSI_MRESP0 TO_REG(0x0d0)
+
+#define FSI_MRESB0 TO_REG(0x1d0)
+#define FSI_MRESB0_RESET_GENERAL BIT(31)
+#define FSI_MRESB0_RESET_ERROR BIT(30)
+
+static uint64_t fsi_master_read(void *opaque, hwaddr addr, unsigned size)
+{
+ FSIMasterState *s = FSI_MASTER(opaque);
+ int reg = TO_REG(addr);
+
+ trace_fsi_master_read(addr, size);
+
+ if (reg >= FSI_MASTER_NR_REGS) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Out of bounds read: 0x%"HWADDR_PRIx" for %u\n",
+ __func__, addr, size);
+ return 0;
+ }
+
+ return s->regs[reg];
+}
+
+static void fsi_master_write(void *opaque, hwaddr addr, uint64_t data,
+ unsigned size)
+{
+ FSIMasterState *s = FSI_MASTER(opaque);
+ int reg = TO_REG(addr);
+
+ trace_fsi_master_write(addr, size, data);
+
+ if (reg >= FSI_MASTER_NR_REGS) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Out of bounds write: %"HWADDR_PRIx" for %u\n",
+ __func__, addr, size);
+ return;
+ }
+
+ switch (reg) {
+ case FSI_MENP0:
+ s->regs[FSI_MENP0] = data;
+ break;
+ case FSI_MENP32:
+ s->regs[FSI_MENP32] = data;
+ break;
+ case FSI_MSENP0:
+ s->regs[FSI_MENP0] |= data;
+ break;
+ case FSI_MSENP32:
+ s->regs[FSI_MENP32] |= data;
+ break;
+ case FSI_MCENP0:
+ s->regs[FSI_MENP0] &= ~data;
+ break;
+ case FSI_MCENP32:
+ s->regs[FSI_MENP32] &= ~data;
+ break;
+ case FSI_MRESP0:
+ /* Perform necessary resets leave register 0 to indicate no errors */
+ break;
+ case FSI_MRESB0:
+ if (data & FSI_MRESB0_RESET_GENERAL) {
+ device_cold_reset(DEVICE(opaque));
+ }
+ if (data & FSI_MRESB0_RESET_ERROR) {
+ /* FIXME: this seems dubious */
+ device_cold_reset(DEVICE(opaque));
+ }
+ break;
+ default:
+ s->regs[reg] = data;
+ }
+}
+
+static const struct MemoryRegionOps fsi_master_ops = {
+ .read = fsi_master_read,
+ .write = fsi_master_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+};
+
+static void fsi_master_init(Object *o)
+{
+ FSIMasterState *s = FSI_MASTER(o);
+
+ object_initialize_child(o, "cfam", &s->cfam, TYPE_FSI_CFAM);
+
+ qbus_init(&s->bus, sizeof(s->bus), TYPE_FSI_BUS, DEVICE(s), NULL);
+
+ memory_region_init_io(&s->iomem, OBJECT(s), &fsi_master_ops, s,
+ TYPE_FSI_MASTER, 0x10000000);
+ memory_region_init(&s->opb2fsi, OBJECT(s), "fsi.opb2fsi", 0x10000000);
+}
+
+static void fsi_master_realize(DeviceState *dev, Error **errp)
+{
+ FSIMasterState *s = FSI_MASTER(dev);
+
+ if (!qdev_realize(DEVICE(&s->cfam), BUS(&s->bus), errp)) {
+ return;
+ }
+
+ /* address ? */
+ memory_region_add_subregion(&s->opb2fsi, 0, &s->cfam.mr);
+}
+
+static void fsi_master_reset(DeviceState *dev)
+{
+ FSIMasterState *s = FSI_MASTER(dev);
+
+ /* Initialize registers */
+ memset(s->regs, 0, sizeof(s->regs));
+
+ /* ASPEED default */
+ s->regs[FSI_MVER] = 0xe0050101;
+}
+
+static void fsi_master_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->bus_type = TYPE_OP_BUS;
+ dc->desc = "FSI Master";
+ dc->realize = fsi_master_realize;
+ dc->reset = fsi_master_reset;
+}
+
+static const TypeInfo fsi_master_info = {
+ .name = TYPE_FSI_MASTER,
+ .parent = TYPE_DEVICE,
+ .instance_init = fsi_master_init,
+ .instance_size = sizeof(FSIMasterState),
+ .class_init = fsi_master_class_init,
+};
+
+static void fsi_register_types(void)
+{
+ type_register_static(&fsi_master_info);
+}
+
+type_init(fsi_register_types);
diff --git a/hw/fsi/fsi.c b/hw/fsi/fsi.c
new file mode 100644
index 0000000..9a5f4e6
--- /dev/null
+++ b/hw/fsi/fsi.c
@@ -0,0 +1,102 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright (C) 2024 IBM Corp.
+ *
+ * IBM Flexible Service Interface
+ */
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu/log.h"
+#include "trace.h"
+
+#include "hw/fsi/fsi.h"
+
+#define TO_REG(x) ((x) >> 2)
+
+static const TypeInfo fsi_bus_info = {
+ .name = TYPE_FSI_BUS,
+ .parent = TYPE_BUS,
+ .instance_size = sizeof(FSIBus),
+};
+
+static uint64_t fsi_slave_read(void *opaque, hwaddr addr, unsigned size)
+{
+ FSISlaveState *s = FSI_SLAVE(opaque);
+ int reg = TO_REG(addr);
+
+ trace_fsi_slave_read(addr, size);
+
+ if (reg >= FSI_SLAVE_CONTROL_NR_REGS) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Out of bounds read: 0x%"HWADDR_PRIx" for %u\n",
+ __func__, addr, size);
+ return 0;
+ }
+
+ return s->regs[reg];
+}
+
+static void fsi_slave_write(void *opaque, hwaddr addr, uint64_t data,
+ unsigned size)
+{
+ FSISlaveState *s = FSI_SLAVE(opaque);
+ int reg = TO_REG(addr);
+
+ trace_fsi_slave_write(addr, size, data);
+
+ if (reg >= FSI_SLAVE_CONTROL_NR_REGS) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Out of bounds write: 0x%"HWADDR_PRIx" for %u\n",
+ __func__, addr, size);
+ return;
+ }
+
+ s->regs[reg] = data;
+}
+
+static const struct MemoryRegionOps fsi_slave_ops = {
+ .read = fsi_slave_read,
+ .write = fsi_slave_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+};
+
+static void fsi_slave_reset(DeviceState *dev)
+{
+ FSISlaveState *s = FSI_SLAVE(dev);
+
+ /* Initialize registers */
+ memset(s->regs, 0, sizeof(s->regs));
+}
+
+static void fsi_slave_init(Object *o)
+{
+ FSISlaveState *s = FSI_SLAVE(o);
+
+ memory_region_init_io(&s->iomem, OBJECT(s), &fsi_slave_ops,
+ s, TYPE_FSI_SLAVE, 0x400);
+}
+
+static void fsi_slave_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->bus_type = TYPE_FSI_BUS;
+ dc->desc = "FSI Slave";
+ dc->reset = fsi_slave_reset;
+}
+
+static const TypeInfo fsi_slave_info = {
+ .name = TYPE_FSI_SLAVE,
+ .parent = TYPE_DEVICE,
+ .instance_init = fsi_slave_init,
+ .instance_size = sizeof(FSISlaveState),
+ .class_init = fsi_slave_class_init,
+};
+
+static void fsi_register_types(void)
+{
+ type_register_static(&fsi_bus_info);
+ type_register_static(&fsi_slave_info);
+}
+
+type_init(fsi_register_types);
diff --git a/hw/fsi/lbus.c b/hw/fsi/lbus.c
new file mode 100644
index 0000000..20495f4
--- /dev/null
+++ b/hw/fsi/lbus.c
@@ -0,0 +1,117 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright (C) 2024 IBM Corp.
+ *
+ * IBM Local bus where FSI slaves are connected
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "hw/fsi/lbus.h"
+#include "hw/qdev-properties.h"
+#include "qemu/log.h"
+#include "trace.h"
+
+#define TO_REG(offset) ((offset) >> 2)
+
+static void fsi_lbus_init(Object *o)
+{
+ FSILBus *lbus = FSI_LBUS(o);
+
+ memory_region_init(&lbus->mr, OBJECT(lbus), TYPE_FSI_LBUS, 1 * MiB);
+}
+
+static const TypeInfo fsi_lbus_info = {
+ .name = TYPE_FSI_LBUS,
+ .parent = TYPE_BUS,
+ .instance_init = fsi_lbus_init,
+ .instance_size = sizeof(FSILBus),
+};
+
+static const TypeInfo fsi_lbus_device_type_info = {
+ .name = TYPE_FSI_LBUS_DEVICE,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(FSILBusDevice),
+ .abstract = true,
+};
+
+static uint64_t fsi_scratchpad_read(void *opaque, hwaddr addr, unsigned size)
+{
+ FSIScratchPad *s = SCRATCHPAD(opaque);
+ int reg = TO_REG(addr);
+
+ trace_fsi_scratchpad_read(addr, size);
+
+ if (reg >= FSI_SCRATCHPAD_NR_REGS) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Out-of-bounds read at offset 0x%" HWADDR_PRIx "\n",
+ __func__, addr);
+ return 0;
+ }
+
+ return s->regs[reg];
+}
+
+static void fsi_scratchpad_write(void *opaque, hwaddr addr, uint64_t data,
+ unsigned size)
+{
+ FSIScratchPad *s = SCRATCHPAD(opaque);
+
+ trace_fsi_scratchpad_write(addr, size, data);
+ int reg = TO_REG(addr);
+
+ if (reg >= FSI_SCRATCHPAD_NR_REGS) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Out-of-bounds write at offset 0x%" HWADDR_PRIx "\n",
+ __func__, addr);
+ return;
+ }
+
+ s->regs[reg] = data;
+}
+
+static const struct MemoryRegionOps scratchpad_ops = {
+ .read = fsi_scratchpad_read,
+ .write = fsi_scratchpad_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+};
+
+static void fsi_scratchpad_realize(DeviceState *dev, Error **errp)
+{
+ FSILBusDevice *ldev = FSI_LBUS_DEVICE(dev);
+
+ memory_region_init_io(&ldev->iomem, OBJECT(ldev), &scratchpad_ops,
+ ldev, TYPE_FSI_SCRATCHPAD, 0x400);
+}
+
+static void fsi_scratchpad_reset(DeviceState *dev)
+{
+ FSIScratchPad *s = SCRATCHPAD(dev);
+
+ memset(s->regs, 0, sizeof(s->regs));
+}
+
+static void fsi_scratchpad_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->bus_type = TYPE_FSI_LBUS;
+ dc->realize = fsi_scratchpad_realize;
+ dc->reset = fsi_scratchpad_reset;
+}
+
+static const TypeInfo fsi_scratchpad_info = {
+ .name = TYPE_FSI_SCRATCHPAD,
+ .parent = TYPE_FSI_LBUS_DEVICE,
+ .instance_size = sizeof(FSIScratchPad),
+ .class_init = fsi_scratchpad_class_init,
+};
+
+static void fsi_lbus_register_types(void)
+{
+ type_register_static(&fsi_lbus_info);
+ type_register_static(&fsi_lbus_device_type_info);
+ type_register_static(&fsi_scratchpad_info);
+}
+
+type_init(fsi_lbus_register_types);
diff --git a/hw/fsi/meson.build b/hw/fsi/meson.build
new file mode 100644
index 0000000..a18a076
--- /dev/null
+++ b/hw/fsi/meson.build
@@ -0,0 +1,2 @@
+system_ss.add(when: 'CONFIG_FSI', if_true: files('lbus.c','fsi.c','cfam.c','fsi-master.c'))
+system_ss.add(when: 'CONFIG_FSI_APB2OPB_ASPEED', if_true: files('aspeed_apb2opb.c'))
diff --git a/hw/fsi/trace-events b/hw/fsi/trace-events
new file mode 100644
index 0000000..9e286d0
--- /dev/null
+++ b/hw/fsi/trace-events
@@ -0,0 +1,13 @@
+fsi_scratchpad_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=%d"
+fsi_scratchpad_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" PRIx64 " size=%d value=0x%"PRIx64
+fsi_slave_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=%d"
+fsi_slave_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" PRIx64 " size=%d value=0x%"PRIx64
+fsi_cfam_config_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=%d"
+fsi_cfam_config_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" PRIx64 " size=%d value=0x%"PRIx64
+fsi_cfam_unimplemented_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=%d"
+fsi_cfam_unimplemented_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" PRIx64 " size=%d value=0x%"PRIx64
+fsi_cfam_config_write_noaddr(uint64_t addr, uint32_t size, uint64_t data) "@0x%" PRIx64 " size=%d value=0x%"PRIx64
+fsi_master_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=%d"
+fsi_master_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" PRIx64 " size=%d value=0x%"PRIx64
+fsi_aspeed_apb2opb_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=%d"
+fsi_aspeed_apb2opb_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" PRIx64 " size=%d value=0x%"PRIx64
diff --git a/hw/fsi/trace.h b/hw/fsi/trace.h
new file mode 100644
index 0000000..ee67c7f
--- /dev/null
+++ b/hw/fsi/trace.h
@@ -0,0 +1 @@
+#include "trace/trace-hw_fsi.h"
diff --git a/hw/meson.build b/hw/meson.build
index f01fac4..463d702 100644
--- a/hw/meson.build
+++ b/hw/meson.build
@@ -44,6 +44,7 @@ subdir('virtio')
subdir('watchdog')
subdir('xen')
subdir('xenpv')
+subdir('fsi')
subdir('alpha')
subdir('arm')
diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h
index cb832bc..9d0af84 100644
--- a/include/hw/arm/aspeed_soc.h
+++ b/include/hw/arm/aspeed_soc.h
@@ -36,6 +36,7 @@
#include "hw/misc/aspeed_lpc.h"
#include "hw/misc/unimp.h"
#include "hw/misc/aspeed_peci.h"
+#include "hw/fsi/aspeed_apb2opb.h"
#include "hw/char/serial.h"
#define ASPEED_SPIS_NUM 2
@@ -90,6 +91,7 @@ struct AspeedSoCState {
UnimplementedDeviceState udc;
UnimplementedDeviceState sgpiom;
UnimplementedDeviceState jtag[ASPEED_JTAG_NUM];
+ AspeedAPB2OPBState fsi[2];
};
#define TYPE_ASPEED_SOC "aspeed-soc"
@@ -128,7 +130,8 @@ struct AspeedSoCClass {
DeviceClass parent_class;
const char *name;
- const char *cpu_type;
+ /** valid_cpu_types: NULL terminated array of a single CPU type. */
+ const char * const *valid_cpu_types;
uint32_t silicon_rev;
uint64_t sram_size;
uint64_t secsram_size;
@@ -143,6 +146,7 @@ struct AspeedSoCClass {
qemu_irq (*get_irq)(AspeedSoCState *s, int dev);
};
+const char *aspeed_soc_cpu_type(AspeedSoCClass *sc);
enum {
ASPEED_DEV_SPI_BOOT,
@@ -214,6 +218,8 @@ enum {
ASPEED_DEV_SGPIOM,
ASPEED_DEV_JTAG0,
ASPEED_DEV_JTAG1,
+ ASPEED_DEV_FSI1,
+ ASPEED_DEV_FSI2,
};
#define ASPEED_SOC_SPI_BOOT_ADDR 0x0
diff --git a/include/hw/fsi/aspeed_apb2opb.h b/include/hw/fsi/aspeed_apb2opb.h
new file mode 100644
index 0000000..f6a2387
--- /dev/null
+++ b/include/hw/fsi/aspeed_apb2opb.h
@@ -0,0 +1,46 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright (C) 2024 IBM Corp.
+ *
+ * ASPEED APB2OPB Bridge
+ * IBM On-Chip Peripheral Bus
+ */
+#ifndef FSI_ASPEED_APB2OPB_H
+#define FSI_ASPEED_APB2OPB_H
+
+#include "exec/memory.h"
+#include "hw/fsi/fsi-master.h"
+#include "hw/sysbus.h"
+
+#define TYPE_FSI_OPB "fsi.opb"
+
+#define TYPE_OP_BUS "opb"
+OBJECT_DECLARE_SIMPLE_TYPE(OPBus, OP_BUS)
+
+typedef struct OPBus {
+ BusState bus;
+
+ MemoryRegion mr;
+ AddressSpace as;
+} OPBus;
+
+#define TYPE_ASPEED_APB2OPB "aspeed.apb2opb"
+OBJECT_DECLARE_SIMPLE_TYPE(AspeedAPB2OPBState, ASPEED_APB2OPB)
+
+#define ASPEED_APB2OPB_NR_REGS ((0xe8 >> 2) + 1)
+
+#define ASPEED_FSI_NUM 2
+
+typedef struct AspeedAPB2OPBState {
+ SysBusDevice parent_obj;
+
+ MemoryRegion iomem;
+
+ uint32_t regs[ASPEED_APB2OPB_NR_REGS];
+ qemu_irq irq;
+
+ OPBus opb[ASPEED_FSI_NUM];
+ FSIMasterState fsi[ASPEED_FSI_NUM];
+} AspeedAPB2OPBState;
+
+#endif /* FSI_ASPEED_APB2OPB_H */
diff --git a/include/hw/fsi/cfam.h b/include/hw/fsi/cfam.h
new file mode 100644
index 0000000..7abc3b2
--- /dev/null
+++ b/include/hw/fsi/cfam.h
@@ -0,0 +1,34 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright (C) 2024 IBM Corp.
+ *
+ * IBM Common FRU Access Macro
+ */
+#ifndef FSI_CFAM_H
+#define FSI_CFAM_H
+
+#include "exec/memory.h"
+
+#include "hw/fsi/fsi.h"
+#include "hw/fsi/lbus.h"
+
+#define TYPE_FSI_CFAM "cfam"
+#define FSI_CFAM(obj) OBJECT_CHECK(FSICFAMState, (obj), TYPE_FSI_CFAM)
+
+/* P9-ism */
+#define CFAM_CONFIG_NR_REGS 0x28
+
+typedef struct FSICFAMState {
+ /* < private > */
+ FSISlaveState parent;
+
+ /* CFAM config address space */
+ MemoryRegion config_iomem;
+
+ MemoryRegion mr;
+
+ FSILBus lbus;
+ FSIScratchPad scratchpad;
+} FSICFAMState;
+
+#endif /* FSI_CFAM_H */
diff --git a/include/hw/fsi/fsi-master.h b/include/hw/fsi/fsi-master.h
new file mode 100644
index 0000000..68e5f56
--- /dev/null
+++ b/include/hw/fsi/fsi-master.h
@@ -0,0 +1,32 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright (C) 2024 IBM Corp.
+ *
+ * IBM Flexible Service Interface Master
+ */
+#ifndef FSI_FSI_MASTER_H
+#define FSI_FSI_MASTER_H
+
+#include "exec/memory.h"
+#include "hw/qdev-core.h"
+#include "hw/fsi/fsi.h"
+#include "hw/fsi/cfam.h"
+
+#define TYPE_FSI_MASTER "fsi.master"
+OBJECT_DECLARE_SIMPLE_TYPE(FSIMasterState, FSI_MASTER)
+
+#define FSI_MASTER_NR_REGS ((0x2e0 >> 2) + 1)
+
+typedef struct FSIMasterState {
+ DeviceState parent;
+ MemoryRegion iomem;
+ MemoryRegion opb2fsi;
+
+ FSIBus bus;
+
+ uint32_t regs[FSI_MASTER_NR_REGS];
+ FSICFAMState cfam;
+} FSIMasterState;
+
+
+#endif /* FSI_FSI_H */
diff --git a/include/hw/fsi/fsi.h b/include/hw/fsi/fsi.h
new file mode 100644
index 0000000..e00f6ef
--- /dev/null
+++ b/include/hw/fsi/fsi.h
@@ -0,0 +1,37 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright (C) 2024 IBM Corp.
+ *
+ * IBM Flexible Service Interface
+ */
+#ifndef FSI_FSI_H
+#define FSI_FSI_H
+
+#include "exec/memory.h"
+#include "hw/qdev-core.h"
+#include "hw/fsi/lbus.h"
+#include "qemu/bitops.h"
+
+/* Bitwise operations at the word level. */
+#define BE_GENMASK(hb, lb) MAKE_64BIT_MASK((lb), ((hb) - (lb) + 1))
+
+#define TYPE_FSI_BUS "fsi.bus"
+OBJECT_DECLARE_SIMPLE_TYPE(FSIBus, FSI_BUS)
+
+typedef struct FSIBus {
+ BusState bus;
+} FSIBus;
+
+#define TYPE_FSI_SLAVE "fsi.slave"
+OBJECT_DECLARE_SIMPLE_TYPE(FSISlaveState, FSI_SLAVE)
+
+#define FSI_SLAVE_CONTROL_NR_REGS ((0x40 >> 2) + 1)
+
+typedef struct FSISlaveState {
+ DeviceState parent;
+
+ MemoryRegion iomem;
+ uint32_t regs[FSI_SLAVE_CONTROL_NR_REGS];
+} FSISlaveState;
+
+#endif /* FSI_FSI_H */
diff --git a/include/hw/fsi/lbus.h b/include/hw/fsi/lbus.h
new file mode 100644
index 0000000..558268c
--- /dev/null
+++ b/include/hw/fsi/lbus.h
@@ -0,0 +1,43 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright (C) 2024 IBM Corp.
+ *
+ * IBM Local bus and connected device structures.
+ */
+#ifndef FSI_LBUS_H
+#define FSI_LBUS_H
+
+#include "hw/qdev-core.h"
+#include "qemu/units.h"
+#include "exec/memory.h"
+
+#define TYPE_FSI_LBUS_DEVICE "fsi.lbus.device"
+OBJECT_DECLARE_SIMPLE_TYPE(FSILBusDevice, FSI_LBUS_DEVICE)
+
+typedef struct FSILBusDevice {
+ DeviceState parent;
+
+ MemoryRegion iomem;
+} FSILBusDevice;
+
+#define TYPE_FSI_LBUS "fsi.lbus"
+OBJECT_DECLARE_SIMPLE_TYPE(FSILBus, FSI_LBUS)
+
+typedef struct FSILBus {
+ BusState bus;
+
+ MemoryRegion mr;
+} FSILBus;
+
+#define TYPE_FSI_SCRATCHPAD "fsi.scratchpad"
+#define SCRATCHPAD(obj) OBJECT_CHECK(FSIScratchPad, (obj), TYPE_FSI_SCRATCHPAD)
+
+#define FSI_SCRATCHPAD_NR_REGS 4
+
+typedef struct FSIScratchPad {
+ FSILBusDevice parent;
+
+ uint32_t regs[FSI_SCRATCHPAD_NR_REGS];
+} FSIScratchPad;
+
+#endif /* FSI_LBUS_H */
diff --git a/meson.build b/meson.build
index 5ffa8c9..b5d6dc9 100644
--- a/meson.build
+++ b/meson.build
@@ -3289,6 +3289,7 @@ if have_system
'hw/char',
'hw/display',
'hw/dma',
+ 'hw/fsi',
'hw/hyperv',
'hw/i2c',
'hw/i386',
diff --git a/tests/avocado/machine_aspeed.py b/tests/avocado/machine_aspeed.py
index 6fa5459..cec0181 100644
--- a/tests/avocado/machine_aspeed.py
+++ b/tests/avocado/machine_aspeed.py
@@ -155,6 +155,7 @@ class AST2x00Machine(QemuSystemTest):
time.sleep(0.1)
exec_command(self, 'root')
time.sleep(0.1)
+ exec_command(self, "passw0rd")
def do_test_arm_aspeed_buildroot_poweroff(self):
exec_command_and_wait_for_pattern(self, 'poweroff',
@@ -167,14 +168,14 @@ class AST2x00Machine(QemuSystemTest):
"""
image_url = ('https://github.com/legoater/qemu-aspeed-boot/raw/master/'
- 'images/ast2500-evb/buildroot-2022.11-2-g15d3648df9/flash.img')
- image_hash = ('f96d11db521fe7a2787745e9e391225deeeec3318ee0fc07c8b799b8833dd474')
+ 'images/ast2500-evb/buildroot-2023.11/flash.img')
+ image_hash = ('c23db6160cf77d0258397eb2051162c8473a56c441417c52a91ba217186e715f')
image_path = self.fetch_asset(image_url, asset_hash=image_hash,
algorithm='sha256')
self.vm.add_args('-device',
'tmp105,bus=aspeed.i2c.bus.3,address=0x4d,id=tmp-test');
- self.do_test_arm_aspeed_buildroot_start(image_path, '0x0')
+ self.do_test_arm_aspeed_buildroot_start(image_path, '0x0', 'Aspeed AST2500 EVB')
exec_command_and_wait_for_pattern(self,
'echo lm75 0x4d > /sys/class/i2c-dev/i2c-3/device/new_device',
@@ -195,8 +196,8 @@ class AST2x00Machine(QemuSystemTest):
"""
image_url = ('https://github.com/legoater/qemu-aspeed-boot/raw/master/'
- 'images/ast2600-evb/buildroot-2022.11-2-g15d3648df9/flash.img')
- image_hash = ('e598d86e5ea79671ca8b59212a326c911bc8bea728dec1a1f5390d717a28bb8b')
+ 'images/ast2600-evb/buildroot-2023.11/flash.img')
+ image_hash = ('b62808daef48b438d0728ee07662290490ecfa65987bb91294cafb1bb7ad1a68')
image_path = self.fetch_asset(image_url, asset_hash=image_hash,
algorithm='sha256')
@@ -206,17 +207,17 @@ class AST2x00Machine(QemuSystemTest):
'ds1338,bus=aspeed.i2c.bus.3,address=0x32');
self.vm.add_args('-device',
'i2c-echo,bus=aspeed.i2c.bus.3,address=0x42');
- self.do_test_arm_aspeed_buildroot_start(image_path, '0xf00')
+ self.do_test_arm_aspeed_buildroot_start(image_path, '0xf00', 'Aspeed AST2600 EVB')
exec_command_and_wait_for_pattern(self,
'echo lm75 0x4d > /sys/class/i2c-dev/i2c-3/device/new_device',
'i2c i2c-3: new_device: Instantiated device lm75 at 0x4d');
exec_command_and_wait_for_pattern(self,
- 'cat /sys/class/hwmon/hwmon0/temp1_input', '0')
+ 'cat /sys/class/hwmon/hwmon1/temp1_input', '0')
self.vm.cmd('qom-set', path='/machine/peripheral/tmp-test',
property='temperature', value=18000);
exec_command_and_wait_for_pattern(self,
- 'cat /sys/class/hwmon/hwmon0/temp1_input', '18000')
+ 'cat /sys/class/hwmon/hwmon1/temp1_input', '18000')
exec_command_and_wait_for_pattern(self,
'echo ds1307 0x32 > /sys/class/i2c-dev/i2c-3/device/new_device',
@@ -261,7 +262,6 @@ class AST2x00Machine(QemuSystemTest):
self.vm.add_args('-device',
'tpm-tis-i2c,tpmdev=tpm0,bus=aspeed.i2c.bus.12,address=0x2e')
self.do_test_arm_aspeed_buildroot_start(image_path, '0xf00', 'Aspeed AST2600 EVB')
- exec_command(self, "passw0rd")
exec_command_and_wait_for_pattern(self,
'echo tpm_tis_i2c 0x2e > /sys/bus/i2c/devices/i2c-12/new_device',
diff --git a/tests/qtest/aspeed_fsi-test.c b/tests/qtest/aspeed_fsi-test.c
new file mode 100644
index 0000000..b3020dd
--- /dev/null
+++ b/tests/qtest/aspeed_fsi-test.c
@@ -0,0 +1,205 @@
+/*
+ * QTest testcases for IBM's Flexible Service Interface (FSI)
+ *
+ * Copyright (c) 2023 IBM Corporation
+ *
+ * Authors:
+ * Ninad Palsule <ninad@linux.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include <glib/gstdio.h>
+
+#include "qemu/module.h"
+#include "libqtest-single.h"
+
+/* Registers from ast2600 specifications */
+#define ASPEED_FSI_ENGINER_TRIGGER 0x04
+#define ASPEED_FSI_OPB0_BUS_SELECT 0x10
+#define ASPEED_FSI_OPB1_BUS_SELECT 0x28
+#define ASPEED_FSI_OPB0_RW_DIRECTION 0x14
+#define ASPEED_FSI_OPB1_RW_DIRECTION 0x2c
+#define ASPEED_FSI_OPB0_XFER_SIZE 0x18
+#define ASPEED_FSI_OPB1_XFER_SIZE 0x30
+#define ASPEED_FSI_OPB0_BUS_ADDR 0x1c
+#define ASPEED_FSI_OPB1_BUS_ADDR 0x34
+#define ASPEED_FSI_INTRRUPT_CLEAR 0x40
+#define ASPEED_FSI_INTRRUPT_STATUS 0x48
+#define ASPEED_FSI_OPB0_BUS_STATUS 0x80
+#define ASPEED_FSI_OPB1_BUS_STATUS 0x8c
+#define ASPEED_FSI_OPB0_READ_DATA 0x84
+#define ASPEED_FSI_OPB1_READ_DATA 0x90
+
+/*
+ * FSI Base addresses from the ast2600 specifications.
+ */
+#define AST2600_OPB_FSI0_BASE_ADDR 0x1e79b000
+#define AST2600_OPB_FSI1_BASE_ADDR 0x1e79b100
+
+static uint32_t aspeed_fsi_base_addr;
+
+static uint32_t aspeed_fsi_readl(QTestState *s, uint32_t reg)
+{
+ return qtest_readl(s, aspeed_fsi_base_addr + reg);
+}
+
+static void aspeed_fsi_writel(QTestState *s, uint32_t reg, uint32_t val)
+{
+ qtest_writel(s, aspeed_fsi_base_addr + reg, val);
+}
+
+/* Setup base address and select register */
+static void test_fsi_setup(QTestState *s, uint32_t base_addr)
+{
+ uint32_t curval;
+
+ aspeed_fsi_base_addr = base_addr;
+
+ /* Set the base select register */
+ if (base_addr == AST2600_OPB_FSI0_BASE_ADDR) {
+ /* Unselect FSI1 */
+ aspeed_fsi_writel(s, ASPEED_FSI_OPB1_BUS_SELECT, 0x0);
+ curval = aspeed_fsi_readl(s, ASPEED_FSI_OPB1_BUS_SELECT);
+ g_assert_cmpuint(curval, ==, 0x0);
+
+ /* Select FSI0 */
+ aspeed_fsi_writel(s, ASPEED_FSI_OPB0_BUS_SELECT, 0x1);
+ curval = aspeed_fsi_readl(s, ASPEED_FSI_OPB0_BUS_SELECT);
+ g_assert_cmpuint(curval, ==, 0x1);
+ } else if (base_addr == AST2600_OPB_FSI1_BASE_ADDR) {
+ /* Unselect FSI0 */
+ aspeed_fsi_writel(s, ASPEED_FSI_OPB0_BUS_SELECT, 0x0);
+ curval = aspeed_fsi_readl(s, ASPEED_FSI_OPB0_BUS_SELECT);
+ g_assert_cmpuint(curval, ==, 0x0);
+
+ /* Select FSI1 */
+ aspeed_fsi_writel(s, ASPEED_FSI_OPB1_BUS_SELECT, 0x1);
+ curval = aspeed_fsi_readl(s, ASPEED_FSI_OPB1_BUS_SELECT);
+ g_assert_cmpuint(curval, ==, 0x1);
+ } else {
+ g_assert_not_reached();
+ }
+}
+
+static void test_fsi_reg_change(QTestState *s, uint32_t reg, uint32_t newval)
+{
+ uint32_t base;
+ uint32_t curval;
+
+ base = aspeed_fsi_readl(s, reg);
+ aspeed_fsi_writel(s, reg, newval);
+ curval = aspeed_fsi_readl(s, reg);
+ g_assert_cmpuint(curval, ==, newval);
+ aspeed_fsi_writel(s, reg, base);
+ curval = aspeed_fsi_readl(s, reg);
+ g_assert_cmpuint(curval, ==, base);
+}
+
+static void test_fsi0_master_regs(const void *data)
+{
+ QTestState *s = (QTestState *)data;
+
+ test_fsi_setup(s, AST2600_OPB_FSI0_BASE_ADDR);
+
+ test_fsi_reg_change(s, ASPEED_FSI_OPB0_RW_DIRECTION, 0xF3F4F514);
+ test_fsi_reg_change(s, ASPEED_FSI_OPB0_XFER_SIZE, 0xF3F4F518);
+ test_fsi_reg_change(s, ASPEED_FSI_OPB0_BUS_ADDR, 0xF3F4F51c);
+ test_fsi_reg_change(s, ASPEED_FSI_INTRRUPT_CLEAR, 0xF3F4F540);
+ test_fsi_reg_change(s, ASPEED_FSI_INTRRUPT_STATUS, 0xF3F4F548);
+ test_fsi_reg_change(s, ASPEED_FSI_OPB0_BUS_STATUS, 0xF3F4F580);
+ test_fsi_reg_change(s, ASPEED_FSI_OPB0_READ_DATA, 0xF3F4F584);
+}
+
+static void test_fsi1_master_regs(const void *data)
+{
+ QTestState *s = (QTestState *)data;
+
+ test_fsi_setup(s, AST2600_OPB_FSI1_BASE_ADDR);
+
+ test_fsi_reg_change(s, ASPEED_FSI_OPB1_RW_DIRECTION, 0xF3F4F514);
+ test_fsi_reg_change(s, ASPEED_FSI_OPB1_XFER_SIZE, 0xF3F4F518);
+ test_fsi_reg_change(s, ASPEED_FSI_OPB1_BUS_ADDR, 0xF3F4F51c);
+ test_fsi_reg_change(s, ASPEED_FSI_INTRRUPT_CLEAR, 0xF3F4F540);
+ test_fsi_reg_change(s, ASPEED_FSI_INTRRUPT_STATUS, 0xF3F4F548);
+ test_fsi_reg_change(s, ASPEED_FSI_OPB1_BUS_STATUS, 0xF3F4F580);
+ test_fsi_reg_change(s, ASPEED_FSI_OPB1_READ_DATA, 0xF3F4F584);
+}
+
+static void test_fsi0_getcfam_addr0(const void *data)
+{
+ QTestState *s = (QTestState *)data;
+ uint32_t curval;
+
+ test_fsi_setup(s, AST2600_OPB_FSI0_BASE_ADDR);
+
+ /* Master access direction read */
+ aspeed_fsi_writel(s, ASPEED_FSI_OPB0_RW_DIRECTION, 0x1);
+ /* word */
+ aspeed_fsi_writel(s, ASPEED_FSI_OPB0_XFER_SIZE, 0x3);
+ /* Address */
+ aspeed_fsi_writel(s, ASPEED_FSI_OPB0_BUS_ADDR, 0xa0000000);
+ aspeed_fsi_writel(s, ASPEED_FSI_INTRRUPT_CLEAR, 0x1);
+ aspeed_fsi_writel(s, ASPEED_FSI_ENGINER_TRIGGER, 0x1);
+
+ curval = aspeed_fsi_readl(s, ASPEED_FSI_INTRRUPT_STATUS);
+ g_assert_cmpuint(curval, ==, 0x10000);
+ curval = aspeed_fsi_readl(s, ASPEED_FSI_OPB0_BUS_STATUS);
+ g_assert_cmpuint(curval, ==, 0x0);
+ curval = aspeed_fsi_readl(s, ASPEED_FSI_OPB0_READ_DATA);
+ g_assert_cmpuint(curval, ==, 0x152d02c0);
+}
+
+static void test_fsi1_getcfam_addr0(const void *data)
+{
+ QTestState *s = (QTestState *)data;
+ uint32_t curval;
+
+ test_fsi_setup(s, AST2600_OPB_FSI1_BASE_ADDR);
+
+ /* Master access direction read */
+ aspeed_fsi_writel(s, ASPEED_FSI_OPB1_RW_DIRECTION, 0x1);
+
+ aspeed_fsi_writel(s, ASPEED_FSI_OPB1_XFER_SIZE, 0x3);
+ aspeed_fsi_writel(s, ASPEED_FSI_OPB1_BUS_ADDR, 0xa0000000);
+ aspeed_fsi_writel(s, ASPEED_FSI_INTRRUPT_CLEAR, 0x1);
+ aspeed_fsi_writel(s, ASPEED_FSI_ENGINER_TRIGGER, 0x1);
+
+ curval = aspeed_fsi_readl(s, ASPEED_FSI_INTRRUPT_STATUS);
+ g_assert_cmpuint(curval, ==, 0x20000);
+ curval = aspeed_fsi_readl(s, ASPEED_FSI_OPB1_BUS_STATUS);
+ g_assert_cmpuint(curval, ==, 0x0);
+ curval = aspeed_fsi_readl(s, ASPEED_FSI_OPB1_READ_DATA);
+ g_assert_cmpuint(curval, ==, 0x152d02c0);
+}
+
+int main(int argc, char **argv)
+{
+ int ret = -1;
+ QTestState *s;
+
+ g_test_init(&argc, &argv, NULL);
+
+ s = qtest_init("-machine ast2600-evb ");
+
+ /* Tests for OPB/FSI0 */
+ qtest_add_data_func("/aspeed-fsi-test/test_fsi0_master_regs", s,
+ test_fsi0_master_regs);
+
+ qtest_add_data_func("/aspeed-fsi-test/test_fsi0_getcfam_addr0", s,
+ test_fsi0_getcfam_addr0);
+
+ /* Tests for OPB/FSI1 */
+ qtest_add_data_func("/aspeed-fsi-test/test_fsi1_master_regs", s,
+ test_fsi1_master_regs);
+
+ qtest_add_data_func("/aspeed-fsi-test/test_fsi1_getcfam_addr0", s,
+ test_fsi1_getcfam_addr0);
+
+ ret = g_test_run();
+ qtest_quit(s);
+
+ return ret;
+}
diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
index 84a055a..663338a 100644
--- a/tests/qtest/meson.build
+++ b/tests/qtest/meson.build
@@ -217,6 +217,7 @@ qtests_arm = \
(config_all_devices.has_key('CONFIG_VEXPRESS') ? ['test-arm-mptimer'] : []) + \
(config_all_devices.has_key('CONFIG_MICROBIT') ? ['microbit-test'] : []) + \
(config_all_devices.has_key('CONFIG_STM32L4X5_SOC') ? qtests_stm32l4x5 : []) + \
+ (config_all_devices.has_key('CONFIG_FSI_APB2OPB_ASPEED') ? ['aspeed_fsi-test'] : []) + \
['arm-cpu-features',
'boot-serial-test']
generated by cgit v1.1 at 2024-09-27 22:26:28 +0000