feat(card - ia-440i): add custom QSFP I2C controller to Devicetree

Author: martinspinler

cards/bittware/ia-440i/config/card_const.tcl

@@ -27,6 +27,7 @@ set DMA_MODULES 1
 set QSFP_CAGES 1
 # I2C address of each QSFP cage
 set QSFP_I2C_ADDR(0) "0xA0"
+set QSFP_I2C_CUSTOM_CTRLS [list "i2c_bmc"]
 
 # ------------------------------------------------------------------------------
 # Checking of parameter compatibility

cards/bittware/ia-440i/src/DevTree.tcl

@@ -12,5 +12,11 @@ proc dts_card_specific {base} {
     append ret "reg = <$base 0x44>;"
     append ret "version = <0x00000003>;"
     append ret "};"
+
+    append ret "i2c_bmc: i2c_controller {"
+    append ret "compatible = \"bittware,bmc\";"
+    append ret "reg = <[expr $base + 256] 0x44>;"
+    append ret "version = <0x00000003>;"
+    append ret "};"
     return $ret
 }

cards/bittware/ia-440i/src/fpga.vhd

@@ -343,7 +343,7 @@ begin
 
         QSFP_PORTS              => QSFP_PORTS,
         QSFP_I2C_PORTS          => 1,
-        -- QSFP_I2C_TRISTATE       => ??,
+        QSFP_I2C_CTRL_EN        => false,
 
         STATUS_LEDS             => STATUS_LEDS,
         MISC_IN_WIDTH           => MISC_IN_WIDTH,