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hw/i2c: Implement NPCM7XX SMBus Module Single Mode

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This commit implements the single-byte mode of the SMBus.

Each Nuvoton SoC has 16 System Management Bus (SMBus). These buses
compliant with SMBus and I2C protocol.

This patch implements the single-byte mode of the SMBus. In this mode,
the user sends or receives a byte each time. The SMBus device transmits
it to the underlying i2c device and sends an interrupt back to the QEMU
guest.

Reviewed-by: Doug Evans<dje@google.com>
Reviewed-by: Tyrong Ting<kfting@nuvoton.com>
Signed-off-by: Hao Wu <wuhaotsh@google.com>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Message-id: 20210210220426.3577804-2-wuhaotsh@google.com
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Hao Wu 2021-02-10 14:04:22 -08:00 • committed by Peter Maydell
parent 36cd5fbdbf
commit 94e7787939
7 changed files with 938 additions and 17 deletions
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1
hw/i2c/meson.build
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@ -9,6 +9,7 @@ i2c_ss.add(when: 'CONFIG_EXYNOS4', if_true: files('exynos4210_i2c.c'))
i2c_ss.add(when: 'CONFIG_IMX_I2C', if_true: files('imx_i2c.c'))
i2c_ss.add(when: 'CONFIG_MPC_I2C', if_true: files('mpc_i2c.c'))
i2c_ss.add(when: 'CONFIG_NRF51_SOC', if_true: files('microbit_i2c.c'))
i2c_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx_smbus.c'))
i2c_ss.add(when: 'CONFIG_SMBUS_EEPROM', if_true: files('smbus_eeprom.c'))
i2c_ss.add(when: 'CONFIG_VERSATILE_I2C', if_true: files('versatile_i2c.c'))
i2c_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_i2c.c'))