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Add dummy Aspeed AST2600 Display Port MCU (DPMCU)

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AST2600 Display Port MCU introduces 0x18000000~0x1803FFFF as it's memory
and io address. If guest machine try to access DPMCU memory, it will
cause a fatal error.

Signed-off-by: Troy Lee <troy_lee@aspeedtech.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20211210083034.726610-1-troy_lee@aspeedtech.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Troy Lee 2022-01-07 17:07:57 +00:00 committed by Peter Maydell
parent 41fb4c14ee
commit d9e9cd59df
2 changed files with 10 additions and 0 deletions
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8
hw/arm/aspeed_ast2600.c
View File

@ -19,9 +19,11 @@
#include "sysemu/sysemu.h"
#define ASPEED_SOC_IOMEM_SIZE 0x00200000
#define ASPEED_SOC_DPMCU_SIZE 0x00040000
static const hwaddr aspeed_soc_ast2600_memmap[] = {
[ASPEED_DEV_SRAM] = 0x10000000,
[ASPEED_DEV_DPMCU] = 0x18000000,
/* 0x16000000 0x17FFFFFF : AHB BUS do LPC Bus bridge */
[ASPEED_DEV_IOMEM] = 0x1E600000,
[ASPEED_DEV_PWM] = 0x1E610000,
@ -44,6 +46,7 @@ static const hwaddr aspeed_soc_ast2600_memmap[] = {
[ASPEED_DEV_SCU] = 0x1E6E2000,
[ASPEED_DEV_XDMA] = 0x1E6E7000,
[ASPEED_DEV_ADC] = 0x1E6E9000,
[ASPEED_DEV_DP] = 0x1E6EB000,
[ASPEED_DEV_VIDEO] = 0x1E700000,
[ASPEED_DEV_SDHCI] = 0x1E740000,
[ASPEED_DEV_EMMC] = 0x1E750000,
@ -104,6 +107,7 @@ static const int aspeed_soc_ast2600_irqmap[] = {
[ASPEED_DEV_ETH3] = 32,
[ASPEED_DEV_ETH4] = 33,
[ASPEED_DEV_KCS] = 138, /* 138 -> 142 */
[ASPEED_DEV_DP] = 62,
};
static qemu_irq aspeed_soc_get_irq(AspeedSoCState *s, int ctrl)
@ -298,6 +302,10 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp)
memory_region_add_subregion(get_system_memory(),
sc->memmap[ASPEED_DEV_SRAM], &s->sram);
/* DPMCU */
create_unimplemented_device("aspeed.dpmcu", sc->memmap[ASPEED_DEV_DPMCU],
ASPEED_SOC_DPMCU_SIZE);
/* SCU */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->scu), errp)) {
return;

2
include/hw/arm/aspeed_soc.h
View File

@ -139,6 +139,8 @@ enum {
ASPEED_DEV_EMMC,
ASPEED_DEV_KCS,
ASPEED_DEV_HACE,
ASPEED_DEV_DPMCU,
ASPEED_DEV_DP,
};
#endif /* ASPEED_SOC_H */