diff options
| -rw-r--r-- | docs/system/arm/aspeed.rst | 11 | ||||
| -rw-r--r-- | hw/arm/aspeed.c | 40 |
2 files changed, 49 insertions, 2 deletions
diff --git a/docs/system/arm/aspeed.rst b/docs/system/arm/aspeed.rst index d4e293e7f9..80538422a1 100644 --- a/docs/system/arm/aspeed.rst +++ b/docs/system/arm/aspeed.rst @@ -122,6 +122,11 @@ Options specific to Aspeed machines are : * ``spi-model`` to change the SPI Flash model. + * ``bmc-console`` to change the default console device. Most of the + machines use the ``UART5`` device for a boot console, which is + mapped on ``/dev/ttyS4`` under Linux, but it is not always the + case. + For instance, to start the ``ast2500-evb`` machine with a different FMC chip and a bigger (64M) SPI chip, use : @@ -129,6 +134,12 @@ FMC chip and a bigger (64M) SPI chip, use : -M ast2500-evb,fmc-model=mx25l25635e,spi-model=mx66u51235f +To change the boot console and use device ``UART3`` (``/dev/ttyS2`` +under Linux), use : + +.. code-block:: bash + + -M ast2500-evb,bmc-console=uart3 Aspeed minibmc family boards (``ast1030-evb``) ================================================================== diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c index 76a1e7303d..6880998484 100644 --- a/hw/arm/aspeed.c +++ b/hw/arm/aspeed.c @@ -42,6 +42,7 @@ struct AspeedMachineState { AspeedSoCState soc; MemoryRegion boot_rom; bool mmio_exec; + uint32_t uart_chosen; char *fmc_model; char *spi_model; }; @@ -333,10 +334,11 @@ static void connect_serial_hds_to_uarts(AspeedMachineState *bmc) AspeedMachineClass *amc = ASPEED_MACHINE_GET_CLASS(bmc); AspeedSoCState *s = &bmc->soc; AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s); + int uart_chosen = bmc->uart_chosen ? bmc->uart_chosen : amc->uart_default; - aspeed_soc_uart_set_chr(s, amc->uart_default, serial_hd(0)); + aspeed_soc_uart_set_chr(s, uart_chosen, serial_hd(0)); for (int i = 1, uart = ASPEED_DEV_UART1; i < sc->uarts_num; i++, uart++) { - if (uart == amc->uart_default) { + if (uart == uart_chosen) { continue; } aspeed_soc_uart_set_chr(s, uart, serial_hd(i)); @@ -1078,6 +1080,35 @@ static void aspeed_set_spi_model(Object *obj, const char *value, Error **errp) bmc->spi_model = g_strdup(value); } +static char *aspeed_get_bmc_console(Object *obj, Error **errp) +{ + AspeedMachineState *bmc = ASPEED_MACHINE(obj); + AspeedMachineClass *amc = ASPEED_MACHINE_GET_CLASS(bmc); + int uart_chosen = bmc->uart_chosen ? bmc->uart_chosen : amc->uart_default; + + return g_strdup_printf("uart%d", uart_chosen - ASPEED_DEV_UART1 + 1); +} + +static void aspeed_set_bmc_console(Object *obj, const char *value, Error **errp) +{ + AspeedMachineState *bmc = ASPEED_MACHINE(obj); + AspeedMachineClass *amc = ASPEED_MACHINE_GET_CLASS(bmc); + AspeedSoCClass *sc = ASPEED_SOC_CLASS(object_class_by_name(amc->soc_name)); + int val; + + if (sscanf(value, "uart%u", &val) != 1) { + error_setg(errp, "Bad value for \"uart\" property"); + return; + } + + /* The number of UART depends on the SoC */ + if (val < 1 || val > sc->uarts_num) { + error_setg(errp, "\"uart\" should be in range [1 - %d]", sc->uarts_num); + return; + } + bmc->uart_chosen = ASPEED_DEV_UART1 + val - 1; +} + static void aspeed_machine_class_props_init(ObjectClass *oc) { object_class_property_add_bool(oc, "execute-in-place", @@ -1086,6 +1117,11 @@ static void aspeed_machine_class_props_init(ObjectClass *oc) object_class_property_set_description(oc, "execute-in-place", "boot directly from CE0 flash device"); + object_class_property_add_str(oc, "bmc-console", aspeed_get_bmc_console, + aspeed_set_bmc_console); + object_class_property_set_description(oc, "bmc-console", + "Change the default UART to \"uartX\""); + object_class_property_add_str(oc, "fmc-model", aspeed_get_fmc_model, aspeed_set_fmc_model); object_class_property_set_description(oc, "fmc-model", |