From: Kane-Chen-AS <[email protected]> Connect the AST1700 device as a child of the AST27X0 model to reflect its role in DC-SCM 2.0 LTPI-based architectures. This patch wires the AST1700 device into the platform without introducing functional peripherals.
This forms the base for LTPI expander emulation in QEMU using AST27X0 as the host controller. Note: ioexp_num is set to 0 at this stage. Once all related devices and interrupts are fully implemented, ioexp_num will be updated to its expected value. This ensures the machine remains functional at every commit and avoids potential compiler or build issues. Signed-off-by: Kane-Chen-AS <[email protected]> Reviewed-by: Cédric Le Goater <[email protected]> --- include/hw/arm/aspeed_soc.h | 7 +++++-- hw/arm/aspeed_ast27x0.c | 26 ++++++++++++++++++-------- 2 files changed, 23 insertions(+), 10 deletions(-) diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h index 7b08cca908..f19bab3457 100644 --- a/include/hw/arm/aspeed_soc.h +++ b/include/hw/arm/aspeed_soc.h @@ -45,6 +45,7 @@ #include "hw/char/serial-mm.h" #include "hw/intc/arm_gicv3.h" #include "hw/misc/aspeed_ltpi.h" +#include "hw/arm/aspeed_ast1700.h" #define VBOOTROM_FILE_NAME "ast27x0_bootrom.bin" @@ -112,10 +113,10 @@ struct AspeedSoCState { UnimplementedDeviceState dpmcu; UnimplementedDeviceState espi; UnimplementedDeviceState udc; - UnimplementedDeviceState ltpi; UnimplementedDeviceState jtag[ASPEED_JTAG_NUM]; AspeedAPB2OPBState fsi[2]; AspeedLTPIState ltpi_ctrl[ASPEED_IOEXP_NUM]; + AspeedAST1700SoCState ioexp[ASPEED_IOEXP_NUM]; }; #define TYPE_ASPEED_SOC "aspeed-soc" @@ -178,6 +179,7 @@ struct AspeedSoCClass { int macs_num; int uarts_num; int uarts_base; + int ioexp_num; const int *irqmap; const hwaddr *memmap; uint32_t num_cpus; @@ -190,7 +192,6 @@ enum { ASPEED_DEV_IOMEM, ASPEED_DEV_IOMEM0, ASPEED_DEV_IOMEM1, - ASPEED_DEV_LTPI, ASPEED_DEV_UART0, ASPEED_DEV_UART1, ASPEED_DEV_UART2, @@ -285,6 +286,8 @@ enum { ASPEED_DEV_IPC1, ASPEED_DEV_LTPI_CTRL1, ASPEED_DEV_LTPI_CTRL2, + ASPEED_DEV_LTPI_IO0, + ASPEED_DEV_LTPI_IO1, }; const char *aspeed_soc_cpu_type(const char * const *valid_cpu_types); diff --git a/hw/arm/aspeed_ast27x0.c b/hw/arm/aspeed_ast27x0.c index 341b53189b..de39a3e7eb 100644 --- a/hw/arm/aspeed_ast27x0.c +++ b/hw/arm/aspeed_ast27x0.c @@ -26,7 +26,6 @@ #define AST2700_SOC_IO_SIZE 0x00FE0000 #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_VBOOTROM] = 0x00000000, @@ -91,7 +90,8 @@ static const hwaddr aspeed_soc_ast2700_memmap[] = { [ASPEED_DEV_LTPI_CTRL1] = 0x14C34000, [ASPEED_DEV_LTPI_CTRL2] = 0x14C35000, [ASPEED_DEV_WDT] = 0x14C37000, - [ASPEED_DEV_LTPI] = 0x30000000, + [ASPEED_DEV_LTPI_IO0] = 0x30000000, + [ASPEED_DEV_LTPI_IO1] = 0x50000000, [ASPEED_DEV_PCIE_MMIO0] = 0x60000000, [ASPEED_DEV_PCIE_MMIO1] = 0x80000000, [ASPEED_DEV_PCIE_MMIO2] = 0xA0000000, @@ -563,10 +563,14 @@ static void aspeed_soc_ast2700_init(Object *obj) &s->ltpi_ctrl[i], TYPE_ASPEED_LTPI); } + for (i = 0; i < sc->ioexp_num; i++) { + /* AST1700 IOEXP */ + object_initialize_child(obj, "ioexp[*]", &s->ioexp[i], + TYPE_ASPEED_AST1700); + } + 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, @@ -1068,14 +1072,19 @@ static void aspeed_soc_ast2700_realize(DeviceState *dev, Error **errp) aspeed_mmio_map(s->memory, SYS_BUS_DEVICE(ltpi_ctrl), 0, ltpi_base); } + /* IO Expander */ + for (i = 0; i < sc->ioexp_num; i++) { + if (!sysbus_realize(SYS_BUS_DEVICE(&s->ioexp[i]), errp)) { + return; + } + sysbus_mmio_map(SYS_BUS_DEVICE(&s->ioexp[i]), 0, + sc->memmap[ASPEED_DEV_LTPI_IO0 + i]); + } + aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&s->dpmcu), "aspeed.dpmcu", sc->memmap[ASPEED_DEV_DPMCU], AST2700_SOC_DPMCU_SIZE); - aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&s->ltpi), - "aspeed.ltpi", - sc->memmap[ASPEED_DEV_LTPI], - AST2700_SOC_LTPI_SIZE); aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&s->iomem), "aspeed.io", sc->memmap[ASPEED_DEV_IOMEM], @@ -1143,6 +1152,7 @@ static void aspeed_soc_ast2700a1_class_init(ObjectClass *oc, const void *data) sc->macs_num = 3; sc->uarts_num = 13; sc->num_cpus = 4; + sc->ioexp_num = 0; sc->uarts_base = ASPEED_DEV_UART0; sc->irqmap = aspeed_soc_ast2700a1_irqmap; sc->memmap = aspeed_soc_ast2700_memmap; -- 2.43.0
