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| author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2020-06-17 09:25:37 +0200 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2020-06-23 11:39:47 +0100 |
| commit | ada45de9ea67b814a879a6151361c50122326e76 (patch) | |
| tree | f556ed84193d911eacbf73971c4b32286fc725d4 | |
| parent | 58f7f3c4526ce90accc87006531e12971a366f67 (diff) | |
| download | qemu-ada45de9ea67b814a879a6151361c50122326e76.zip | |
hw/arm/mps2: Add I2C devices
From 'Application Note AN385', chapter 3.14:
The SMM implements a simple SBCon interface based on I2C.
There are 4 SBCon interfaces on the FPGA APB subsystem.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200617072539.32686-13-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | hw/arm/Kconfig | 1 | ||||
| -rw-r--r-- | hw/arm/mps2.c | 8 |
2 files changed, 9 insertions, 0 deletions
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index 90ed584e7a..4a224a6351 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -406,6 +406,7 @@ config MPS2 select SPLIT_IRQ select UNIMP select CMSDK_APB_WATCHDOG + select VERSATILE_I2C config FSL_IMX7 bool diff --git a/hw/arm/mps2.c b/hw/arm/mps2.c index daa26f68d7..2f6acbf2c2 100644 --- a/hw/arm/mps2.c +++ b/hw/arm/mps2.c @@ -40,6 +40,7 @@ #include "hw/misc/mps2-scc.h" #include "hw/misc/mps2-fpgaio.h" #include "hw/ssi/pl022.h" +#include "hw/i2c/arm_sbcon_i2c.h" #include "hw/net/lan9118.h" #include "net/net.h" #include "hw/watchdog/cmsdk-apb-watchdog.h" @@ -365,6 +366,13 @@ static void mps2_common_init(MachineState *machine) qdev_get_gpio_in(orgate_dev, j)); } } + for (i = 0; i < 4; i++) { + static const hwaddr i2cbase[] = {0x40022000, /* Touch */ + 0x40023000, /* Audio */ + 0x40029000, /* Shield0 */ + 0x4002a000}; /* Shield1 */ + sysbus_create_simple(TYPE_ARM_SBCON_I2C, i2cbase[i], NULL); + } /* In hardware this is a LAN9220; the LAN9118 is software compatible * except that it doesn't support the checksum-offload feature. |