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| author | Patrick Venture <venture@google.com> | 2021-04-12 12:45:22 -0700 |
|---|---|---|
| committer | Corey Minyard <cminyard@mvista.com> | 2021-04-15 07:10:39 -0500 |
| commit | 065177eeceff552a5316bff9435188b50a2da1b6 (patch) | |
| tree | 9d3485ca8a4c1d5a71c10196226608bd85a7fae6 /hw/i2c/trace-events | |
| parent | 3f9b32595e785c79720ed174198472c3d4d32c03 (diff) | |
| download | qemu-065177eeceff552a5316bff9435188b50a2da1b6.zip qemu-065177eeceff552a5316bff9435188b50a2da1b6.tar.gz qemu-065177eeceff552a5316bff9435188b50a2da1b6.tar.bz2 | |
hw/i2c: add pca954x i2c-mux switch
The pca954x is an i2c mux, and this adds support for two variants of
this device: the pca9546 and pca9548.
This device is very common on BMCs to route a different channel to each
PCIe i2c bus downstream from the BMC.
Signed-off-by: Patrick Venture <venture@google.com>
Reviewed-by: Hao Wu <wuhaotsh@google.com>
Reviewed-by: Havard Skinnemoen <hskinnemoen@google.com>
Message-Id: <20210412194522.664594-5-venture@google.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Diffstat (limited to 'hw/i2c/trace-events')
| -rw-r--r-- | hw/i2c/trace-events | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/i2c/trace-events b/hw/i2c/trace-events index 82fe6f9..82f19e6 100644 --- a/hw/i2c/trace-events +++ b/hw/i2c/trace-events @@ -26,3 +26,8 @@ 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" + +# i2c-mux-pca954x.c + +pca954x_write_bytes(uint8_t value) "PCA954X write data: 0x%02x" +pca954x_read_data(uint8_t value) "PCA954X read data: 0x%02x" |