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hw/i2c: Implement NPCM7XX SMBus Module FIFO Mode

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This patch implements the FIFO mode of the SMBus module. In FIFO, the
user transmits or receives at most 16 bytes at a time. The FIFO mode
allows the module to transmit large amount of data faster than single
byte mode.

Since we only added the device in a patch that is only a few commits
away in the same patch set. We do not increase the VMstate version
number in this special case.

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: 20210210220426.3577804-6-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 14:04:26 -08:00 • committed by Peter Maydell
parent d986bf729c
commit 6b6e7570d6
4 changed files with 501 additions and 16 deletions
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1
hw/i2c/trace-events
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@ -25,3 +25,4 @@ npcm7xx_smbus_send_byte(const char *id, uint8_t value, int success) "%s send byt
npcm7xx_smbus_recv_byte(const char *id, uint8_t value) "%s recv byte: 0x%02x"
npcm7xx_smbus_stop(const char *id) "%s stopping"
npcm7xx_smbus_nack(const char *id) "%s nacking"
npcm7xx_smbus_recv_fifo(const char *id, uint8_t received, uint8_t expected) "%s recv fifo: received %u, expected %u"