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| author | Ying Zhang <b40530@freescale.com> | 2015-03-10 14:21:36 +0800 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2015-04-20 10:15:29 -0700 |
| commit | e5abb92c0b5dd8bd37b0b7a0881e60d82616099f (patch) | |
| tree | 2587cd0a5295e336c19e1fb5438416c718d28478 | |
| parent | 9ca0d35f24b1b1e21c609a521933fd4d6598f9ff (diff) | |
| download | u-boot-imx-e5abb92c0b5dd8bd37b0b7a0881e60d82616099f.zip u-boot-imx-e5abb92c0b5dd8bd37b0b7a0881e60d82616099f.tar.gz u-boot-imx-e5abb92c0b5dd8bd37b0b7a0881e60d82616099f.tar.bz2 | |
board/t208xrdb: 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.
Signed-off-by: Ying Zhang <b40530@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
| -rw-r--r-- | board/freescale/t208xrdb/t208xrdb.c | 7 | ||||
| -rw-r--r-- | include/configs/T208xRDB.h | 11 |
2 files changed, 18 insertions, 0 deletions
diff --git a/board/freescale/t208xrdb/t208xrdb.c b/board/freescale/t208xrdb/t208xrdb.c index 341453b..ad393df 100644 --- a/board/freescale/t208xrdb/t208xrdb.c +++ b/board/freescale/t208xrdb/t208xrdb.c @@ -19,6 +19,7 @@ #include <fm_eth.h> #include "t208xrdb.h" #include "cpld.h" +#include "../common/vid.h" DECLARE_GLOBAL_DATA_PTR; @@ -85,6 +86,12 @@ int board_early_init_r(void) setup_portals(); #endif + /* + * Adjust core voltage according to voltage ID + * This function changes I2C mux to channel 2. + */ + if (adjust_vdd(0)) + printf("Warning: Adjusting core voltage failed.\n"); return 0; } diff --git a/include/configs/T208xRDB.h b/include/configs/T208xRDB.h index faaf22c..453cb88 100644 --- a/include/configs/T208xRDB.h +++ b/include/configs/T208xRDB.h @@ -448,6 +448,17 @@ unsigned long get_board_ddr_clk(void); #define I2C_MUX_PCA_ADDR_SEC2 0x76 /* I2C bus multiplexer,secondary 2 */ #define I2C_MUX_CH_DEFAULT 0x8 +#define I2C_MUX_CH_VOL_MONITOR 0xa + +#define CONFIG_VID_FLS_ENV "t208xrdb_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 T208xRDB */ +#define VDD_MV_MIN 819 +#define VDD_MV_MAX 1212 /* * RapidIO |