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When you run QEMU with an Aspeed machine and a single serial device
using stdio like this:
qemu -machine ast2600-evb -drive ... -serial stdio
The guest OS can read and write to the UART5 registers at 0x1E784000 and
it will receive from stdin and write to stdout. The Aspeed SoC's have a
lot more UART's though (AST2500 has 5, AST2600 has 13) and depending on
the board design, may be using any of them as the serial console. (See
"stdout-path" in a DTS to check which one is chosen).
Most boards, including all of those currently defined in
hw/arm/aspeed.c, just use UART5, but some use UART1. This change adds
some flexibility for different boards without requiring users to change
their command-line invocation of QEMU.
I tested this doesn't break existing code by booting an AST2500 OpenBMC
image and an AST2600 OpenBMC image, each using UART5 as the console.
Then I tested switching the default to UART1 and booting an AST2600
OpenBMC image that uses UART1, and that worked too.
Signed-off-by: Peter Delevoryas <pdel@fb.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210901153615.2746885-2-pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
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| .. | ||
| allwinner-a10.h | ||
| allwinner-h3.h | ||
| armsse-version.h | ||
| armsse.h | ||
| armv7m.h | ||
| aspeed_soc.h | ||
| aspeed.h | ||
| bcm2835_peripherals.h | ||
| bcm2836.h | ||
| boot.h | ||
| digic.h | ||
| exynos4210.h | ||
| fdt.h | ||
| fsl-imx6.h | ||
| fsl-imx6ul.h | ||
| fsl-imx7.h | ||
| fsl-imx25.h | ||
| fsl-imx31.h | ||
| linux-boot-if.h | ||
| msf2-soc.h | ||
| npcm7xx.h | ||
| nrf51_soc.h | ||
| nrf51.h | ||
| omap.h | ||
| primecell.h | ||
| pxa.h | ||
| raspi_platform.h | ||
| sharpsl.h | ||
| smmu-common.h | ||
| smmuv3.h | ||
| soc_dma.h | ||
| stm32f100_soc.h | ||
| stm32f205_soc.h | ||
| stm32f405_soc.h | ||
| sysbus-fdt.h | ||
| virt.h | ||
| xlnx-versal.h | ||
| xlnx-zynqmp.h | ||