diff mbox series

[v2,7/7] hw/arm/aspeed: firework: add I2C MUXes for VR channels

Message ID 20220627154703.148943-8-quic_jaehyoo@quicinc.com
State New
Headers show
Series Add Qualcomm BMC machines | expand

Commit Message

Jae Hyun Yoo June 27, 2022, 3:47 p.m. UTC
Add 2-level cascaded I2C MUXes for SOC VR channels into the Firework
machine.

Signed-off-by: Jae Hyun Yoo <quic_jaehyoo@quicinc.com>
---
Changes in v2:
* None

 hw/arm/aspeed.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

Comments

Cédric Le Goater June 27, 2022, 4:03 p.m. UTC | #1
On 6/27/22 17:47, Jae Hyun Yoo wrote:
> Add 2-level cascaded I2C MUXes for SOC VR channels into the Firework
> machine.
> 
> Signed-off-by: Jae Hyun Yoo <quic_jaehyoo@quicinc.com>



Reviewed-by: Cédric Le Goater <clg@kaod.org>

Thanks,

C.


> ---
> Changes in v2:
> * None
> 
>   hw/arm/aspeed.c | 10 +++++++++-
>   1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
> index cfc322ee30e9..1708a8f3408d 100644
> --- a/hw/arm/aspeed.c
> +++ b/hw/arm/aspeed.c
> @@ -1002,13 +1002,21 @@ static void qcom_dc_scm_bmc_i2c_init(AspeedMachineState *bmc)
>   static void qcom_dc_scm_firework_i2c_init(AspeedMachineState *bmc)
>   {
>       AspeedSoCState *soc = &bmc->soc;
> -    I2CSlave *therm_mux;
> +    I2CSlave *therm_mux, *cpuvr_mux;
>   
>       /* Create the generic DC-SCM hardware */
>       qcom_dc_scm_bmc_i2c_init(bmc);
>   
>       /* Now create the Firework specific hardware */
>   
> +    /* I2C7 CPUVR MUX */
> +    cpuvr_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7),
> +                                        "pca9546", 0x70);
> +    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 0), "pca9548", 0x72);
> +    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 1), "pca9548", 0x72);
> +    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 2), "pca9548", 0x72);
> +    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 3), "pca9548", 0x72);
> +
>       /* I2C8 Thermal Diodes*/
>       therm_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8),
>                                           "pca9548", 0x70);
diff mbox series

Patch

diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index cfc322ee30e9..1708a8f3408d 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -1002,13 +1002,21 @@  static void qcom_dc_scm_bmc_i2c_init(AspeedMachineState *bmc)
 static void qcom_dc_scm_firework_i2c_init(AspeedMachineState *bmc)
 {
     AspeedSoCState *soc = &bmc->soc;
-    I2CSlave *therm_mux;
+    I2CSlave *therm_mux, *cpuvr_mux;
 
     /* Create the generic DC-SCM hardware */
     qcom_dc_scm_bmc_i2c_init(bmc);
 
     /* Now create the Firework specific hardware */
 
+    /* I2C7 CPUVR MUX */
+    cpuvr_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7),
+                                        "pca9546", 0x70);
+    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 0), "pca9548", 0x72);
+    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 1), "pca9548", 0x72);
+    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 2), "pca9548", 0x72);
+    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 3), "pca9548", 0x72);
+
     /* I2C8 Thermal Diodes*/
     therm_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8),
                                         "pca9548", 0x70);