board/b4qds: VID support
The fuse status register provides the values from on-chip
voltage ID efuses programmed at the factory.
These values define the voltage requirements for
the chip. u-boot reads FUSESR and translates the values
into the appropriate commands to set the voltage output
value of an external voltage regulator.
B4860QDS has a PowerOne ZM7300 programmable digital Power
Manager which is programmed as per the value read from
the fuses.
Reference for this code is taken from t4qds VID implementation.
Signed-off-by: Shaveta Leekha <shaveta@freescale.com>
Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
diff --git a/include/configs/B4860QDS.h b/include/configs/B4860QDS.h
index df371b7..a612556 100644
--- a/include/configs/B4860QDS.h
+++ b/include/configs/B4860QDS.h
@@ -115,6 +115,17 @@
#define IDT_SERDES1_ADDRESS 0x6E
#define IDT_SERDES2_ADDRESS 0x6C
+/* Voltage monitor on channel 2*/
+#define I2C_MUX_CH_VOL_MONITOR 0xa
+#define I2C_VOL_MONITOR_ADDR 0x40
+#define I2C_VOL_MONITOR_BUS_V_OFFSET 0x2
+#define I2C_VOL_MONITOR_BUS_V_OVF 0x1
+#define I2C_VOL_MONITOR_BUS_V_SHIFT 3
+
+#define CONFIG_ZM7300
+#define I2C_MUX_CH_DPM 0xa
+#define I2C_DPM_ADDR 0x28
+
#define CONFIG_ENV_OVERWRITE
#ifdef CONFIG_SYS_NO_FLASH