diff mbox series

[01/13] aspeed: ast27x0: Map unimplemented devices in SoC memory

Message ID 20250313054020.2583556-2-steven_lee@aspeedtech.com (mailing list archive)
State New
Headers show
Series Introduce AST27x0 multi-SoC machine | expand

Commit Message

Steven Lee March 13, 2025, 5:40 a.m. UTC
Maps following unimplemented devices in SoC memory
- dpmcu
- iomem
- iomem0
- iomem1
- ltpi

Iomem, Iomem0 and Iomem1 include unimplemented controllers in the
memory ranges 0x0 - 0x1000000, 0x120000000 - 0x121000000 and
0x14000000 - 0x141000000.

For instance:
- USB hub at 0x12010000
- eSPI at 0x14C5000
- PWM at 0x140C0000

DPMCU stands for Display Port MCU controller. LTPI is used to connect
to AST1700.
AST1700 is an I/O expander that supports the DC-SCM 2.1 LTPI protocol.
It provides AST2700 with additional GPIO, UART, I3C, and other
interfaces.

Signed-off-by: Steven Lee <steven_lee@aspeedtech.com>
Change-Id: Iea6c11651c40e341a395b6dbb81975ea2639aebd
---
 include/hw/arm/aspeed_soc.h |  6 +++++
 hw/arm/aspeed_ast27x0.c     | 51 ++++++++++++++++++++++++++++++++-----
 2 files changed, 50 insertions(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h
index f899356ed9..c46ec6302d 100644
--- a/include/hw/arm/aspeed_soc.h
+++ b/include/hw/arm/aspeed_soc.h
@@ -90,6 +90,8 @@  struct AspeedSoCState {
     SerialMM uart[ASPEED_UARTS_NUM];
     Clock *sysclk;
     UnimplementedDeviceState iomem;
+    UnimplementedDeviceState iomem0;
+    UnimplementedDeviceState iomem1;
     UnimplementedDeviceState video;
     UnimplementedDeviceState emmc_boot_controller;
     UnimplementedDeviceState dpmcu;
@@ -97,6 +99,7 @@  struct AspeedSoCState {
     UnimplementedDeviceState espi;
     UnimplementedDeviceState udc;
     UnimplementedDeviceState sgpiom;
+    UnimplementedDeviceState ltpi;
     UnimplementedDeviceState jtag[ASPEED_JTAG_NUM];
     AspeedAPB2OPBState fsi[2];
 };
@@ -171,6 +174,9 @@  const char *aspeed_soc_cpu_type(AspeedSoCClass *sc);
 enum {
     ASPEED_DEV_SPI_BOOT,
     ASPEED_DEV_IOMEM,
+    ASPEED_DEV_IOMEM0,
+    ASPEED_DEV_IOMEM1,
+    ASPEED_DEV_LTPI,
     ASPEED_DEV_UART0,
     ASPEED_DEV_UART1,
     ASPEED_DEV_UART2,
diff --git a/hw/arm/aspeed_ast27x0.c b/hw/arm/aspeed_ast27x0.c
index dce7255a2c..a3fe2582f8 100644
--- a/hw/arm/aspeed_ast27x0.c
+++ b/hw/arm/aspeed_ast27x0.c
@@ -23,8 +23,16 @@ 
 #include "qobject/qlist.h"
 #include "qemu/log.h"
 
+#define AST2700_SOC_IO_SIZE          0x01000000
+#define AST2700_SOC_IOMEM_SIZE       0x01000000
+#define AST2700_SOC_DPMCU_SIZE       0x00040000
+#define AST2700_SOC_LTPI_SIZE        0x01000000
+
 static const hwaddr aspeed_soc_ast2700_memmap[] = {
+    [ASPEED_DEV_IOMEM]     =  0x00000000,
     [ASPEED_DEV_SRAM]      =  0x10000000,
+    [ASPEED_DEV_DPMCU]     =  0x11000000,
+    [ASPEED_DEV_IOMEM0]    =  0x12000000,
     [ASPEED_DEV_HACE]      =  0x12070000,
     [ASPEED_DEV_EMMC]      =  0x12090000,
     [ASPEED_DEV_INTC]      =  0x12100000,
@@ -36,6 +44,7 @@  static const hwaddr aspeed_soc_ast2700_memmap[] = {
     [ASPEED_DEV_TIMER1]    =  0x12C10000,
     [ASPEED_DEV_SLI]       =  0x12C17000,
     [ASPEED_DEV_UART4]     =  0X12C1A000,
+    [ASPEED_DEV_IOMEM1]    =  0x14000000,
     [ASPEED_DEV_FMC]       =  0x14000000,
     [ASPEED_DEV_SPI0]      =  0x14010000,
     [ASPEED_DEV_SPI1]      =  0x14020000,
@@ -68,6 +77,7 @@  static const hwaddr aspeed_soc_ast2700_memmap[] = {
     [ASPEED_DEV_UART12]    =  0X14C33B00,
     [ASPEED_DEV_WDT]       =  0x14C37000,
     [ASPEED_DEV_SPI_BOOT]  =  0x100000000,
+    [ASPEED_DEV_LTPI]      =  0x300000000,
     [ASPEED_DEV_SDRAM]     =  0x400000000,
 };
 
@@ -491,6 +501,16 @@  static void aspeed_soc_ast2700_init(Object *obj)
 
     snprintf(typename, sizeof(typename), "aspeed.hace-%s", socname);
     object_initialize_child(obj, "hace", &s->hace, typename);
+    object_initialize_child(obj, "dpmcu", &s->dpmcu,
+                            TYPE_UNIMPLEMENTED_DEVICE);
+    object_initialize_child(obj, "ltpi", &s->ltpi,
+                            TYPE_UNIMPLEMENTED_DEVICE);
+    object_initialize_child(obj, "iomem", &s->iomem,
+                            TYPE_UNIMPLEMENTED_DEVICE);
+    object_initialize_child(obj, "iomem0", &s->iomem0,
+                            TYPE_UNIMPLEMENTED_DEVICE);
+    object_initialize_child(obj, "iomem1", &s->iomem1,
+                            TYPE_UNIMPLEMENTED_DEVICE);
 }
 
 /*
@@ -526,8 +546,10 @@  static bool aspeed_soc_ast2700_gic_realize(DeviceState *dev, Error **errp)
     if (!sysbus_realize(gicbusdev, errp)) {
         return false;
     }
-    sysbus_mmio_map(gicbusdev, 0, sc->memmap[ASPEED_GIC_DIST]);
-    sysbus_mmio_map(gicbusdev, 1, sc->memmap[ASPEED_GIC_REDIST]);
+    aspeed_mmio_map(s, SYS_BUS_DEVICE(&a->gic), 0,
+                    sc->memmap[ASPEED_GIC_DIST]);
+    aspeed_mmio_map(s, SYS_BUS_DEVICE(&a->gic), 1,
+                    sc->memmap[ASPEED_GIC_REDIST]);
 
     for (i = 0; i < sc->num_cpus; i++) {
         DeviceState *cpudev = DEVICE(&a->cpu[i]);
@@ -876,11 +898,26 @@  static void aspeed_soc_ast2700_realize(DeviceState *dev, Error **errp)
     sysbus_connect_irq(SYS_BUS_DEVICE(&s->hace), 0,
                        aspeed_soc_get_irq(s, ASPEED_DEV_HACE));
 
-    create_unimplemented_device("ast2700.dpmcu", 0x11000000, 0x40000);
-    create_unimplemented_device("ast2700.iomem0", 0x12000000, 0x01000000);
-    create_unimplemented_device("ast2700.iomem1", 0x14000000, 0x01000000);
-    create_unimplemented_device("ast2700.ltpi", 0x30000000, 0x1000000);
-    create_unimplemented_device("ast2700.io", 0x0, 0x4000000);
+    aspeed_mmio_map_unimplemented(s, SYS_BUS_DEVICE(&s->dpmcu),
+                                  "aspeed.dpmcu",
+                                  sc->memmap[ASPEED_DEV_DPMCU],
+                                  AST2700_SOC_DPMCU_SIZE);
+    aspeed_mmio_map_unimplemented(s, SYS_BUS_DEVICE(&s->ltpi),
+                                  "aspeed.ltpi",
+                                  sc->memmap[ASPEED_DEV_LTPI],
+                                  AST2700_SOC_LTPI_SIZE);
+    aspeed_mmio_map_unimplemented(s, SYS_BUS_DEVICE(&s->iomem),
+                                  "aspeed.io",
+                                  sc->memmap[ASPEED_DEV_IOMEM],
+                                  AST2700_SOC_IO_SIZE);
+    aspeed_mmio_map_unimplemented(s, SYS_BUS_DEVICE(&s->iomem0),
+                                  "aspeed.iomem0",
+                                  sc->memmap[ASPEED_DEV_IOMEM0],
+                                  AST2700_SOC_IOMEM_SIZE);
+    aspeed_mmio_map_unimplemented(s, SYS_BUS_DEVICE(&s->iomem1),
+                                  "aspeed.iomem1",
+                                  sc->memmap[ASPEED_DEV_IOMEM1],
+                                  AST2700_SOC_IOMEM_SIZE);
 }
 
 static void aspeed_soc_ast2700a0_class_init(ObjectClass *oc, void *data)