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


From: Jae Hyun Yoo
Subject: [PATCH v2 7/7] hw/arm/aspeed: firework: add I2C MUXes for VR channels
Date: Mon, 27 Jun 2022 08:47:03 -0700

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(-)

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);
-- 
2.25.1




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