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powerpc/board/t4240rdb: Enable VID support

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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.

Signed-off-by: Ying Zhang <b40530@freescale.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Ying Zhang
2016-01-22 12:15:13 +08:00
committed by York Sun
parent cabe4d2f19
commit 2f66a828f7
3 changed files with 19 additions and 1 deletions
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10
include/configs/T4240RDB.h
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@@ -606,6 +606,16 @@ unsigned long get_board_ddr_clk(void);
#define I2C_VOL_MONITOR_BUS_V_OVF 0x1
#define I2C_VOL_MONITOR_BUS_V_SHIFT 3
#define CONFIG_VID_FLS_ENV "t4240rdb_vdd_mv"
#ifndef CONFIG_SPL_BUILD
#define CONFIG_VID
#endif
#define CONFIG_VOL_MONITOR_IR36021_SET
#define CONFIG_VOL_MONITOR_IR36021_READ
/* The lowest and highest voltage allowed for T4240RDB */
#define VDD_MV_MIN 819
#define VDD_MV_MAX 1212
/*
* eSPI - Enhanced SPI
*/